WO2022188462A1 - Anti-corrosion structure body - Google Patents
Anti-corrosion structure body Download PDFInfo
- Publication number
- WO2022188462A1 WO2022188462A1 PCT/CN2021/133046 CN2021133046W WO2022188462A1 WO 2022188462 A1 WO2022188462 A1 WO 2022188462A1 CN 2021133046 W CN2021133046 W CN 2021133046W WO 2022188462 A1 WO2022188462 A1 WO 2022188462A1
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- WO
- WIPO (PCT)
- Prior art keywords
- corrosion
- petrolatum
- layer
- temperature
- tape layer
- Prior art date
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
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Definitions
- the present invention relates to an anti-corrosion structure, in particular to an anti-corrosion structure with excellent corrosion resistance, high temperature resistance, paintability and appearance, and long anti-corrosion life.
- Petrolatum anti-corrosion tapes are widely used as anti-corrosion products due to their low price.
- petrolatum anti-corrosion tapes are mainly used for marine or underground pipelines.
- petrolatum-based anti-corrosion tape can achieve anti-corrosion effect on equipment in the ocean or buried in the ground, when it is used in an outdoor environment, its life is greatly shortened.
- the petrolatum anti-corrosion tape is used in marine or underground pipelines, its service life can be more than 10 years, but when it is used in an outdoor environment, the service life is greatly shortened to about 3 years.
- One of the reasons for the shortened service life is that the petrolatum material is not resistant to ultraviolet rays, and the petrolatum molecular chain is broken after being exposed to light.
- the present invention is made in order to solve the above-mentioned existing problems, and its object is to provide an anti-corrosion structure which can be used in an outdoor environment and has excellent anti-corrosion, paintability and appearance, In addition, it has a long anti-corrosion life and excellent heat resistance, UV resistance and workability.
- the inventors of the present invention have conducted intensive studies in order to achieve the above-mentioned object, and as a result, found that the above-mentioned object can be achieved by implementing the following technical means.
- the present invention is as follows.
- An anti-corrosion structure having:
- the ultraviolet shielding layer is arranged on the opposite side of the petrolatum anticorrosion belt layer and the primer layer,
- the temperature of the petrolatum anti-corrosion tape layer under temperature resistance is 90°C or more
- the peeling strength of the petrolatum anti-corrosion tape layer is more than 600N/m
- the petrolatum anti-corrosion tape layer contains temperature resistant upper material A5,
- the temperature resistant upper material A5 comprises organobentonite and/or crystalline wax
- the temperature under temperature-resistant flow of the undercoat layer is 70°C or higher.
- the content of the temperature resistant upper material A5 is 10 to 40 parts by mass relative to 100 parts by mass of the base oil A1.
- the content of the inorganic filler A2 is 50 to 120 parts by mass relative to 100 parts by mass of the base oil A1.
- the primer composition comprises a petrolatum based primer composition or an oxidatively polymerized primer composition
- the petrolatum based primer composition comprises temperature resistant upper material B5,
- the temperature resistant upper material B5 comprises organobentonite and/or crystalline wax.
- the content of the temperature resistant upper material B5 is 5 to 80 parts by mass relative to 100 parts by mass of the base oil B1.
- the anti-corrosion structure according to any one of [1] to [8], further comprising an anti-corrosion mastic layer, the anti-corrosion mastic layer being provided on the primer layer and the base coat layer. between the petrolatum anti-corrosion belt layers.
- the anti-corrosion structure of the present invention can be used in an outdoor environment, even when used in a high-temperature environment or a place exposed to direct sunlight, it can also have excellent anti-corrosion performance, can effectively block ultraviolet rays, have a long anti-corrosion life, and can be painted. Excellent in appearance, and also excellent in heat resistance, UV resistance, and workability.
- the anti-corrosion structure of the present invention is suitable for coating anti-corrosion of structures of any shape, and has wide application prospects in outdoor environments.
- FIG. 1 is a cross-sectional view schematically showing the structure of a corrosion-resistant structure according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view schematically showing the structure of a corrosion-resistant structure according to another embodiment of the present invention.
- numerical range represented by "numerical value A to numerical value B” means a range including numerical values A and B at the endpoints.
- the unit names used are all international standard unit names.
- references to “some specific/preferred embodiments”, “other specific/preferred embodiments”, “embodiments”, etc. refer to the specific elements described in relation to the embodiments (eg, features, structures, properties and/or characteristics) are included in at least one embodiment described herein, and may or may not be present in other embodiments. Additionally, it should be understood that the described elements may be combined in any suitable manner in the various embodiments.
- the anti-corrosion structure of the present invention has:
- the ultraviolet shielding layer is arranged on the opposite side of the petrolatum anticorrosion belt layer and the primer layer,
- the temperature of the petrolatum anti-corrosion tape layer under temperature resistance is 90°C or more
- the peeling strength of the petrolatum anti-corrosion tape layer is more than 600N/m
- the petrolatum anti-corrosion tape layer contains temperature resistant upper material A5,
- the temperature resistant upper material A5 comprises organobentonite and/or crystalline wax
- the temperature under temperature-resistant flow of the undercoat layer is 70°C or higher.
- FIG. 1 is a cross-sectional view schematically showing the structure of a corrosion-resistant structure according to an embodiment of the present invention.
- the anti-corrosion structure 10 includes a primer layer 1 , a petrolatum-based anti-corrosion tape layer 2 provided on the primer layer 1 , and an ultraviolet blocking layer 3 provided on the petrolatum-based anti-corrosion tape layer 2 . .
- the anti-corrosion structure 10 includes a primer layer 1 , a petrolatum-based anti-corrosion mortar layer 4 provided on the primer layer 1 , and a petrolatum-based anti-corrosion tape layer provided on the anti-corrosion mortar layer 4 2.
- the ultraviolet shielding layer 3 arranged on the petrolatum anti-corrosion belt layer 2 .
- the anti-corrosion structure of the present embodiment is provided with the petrolatum-based anti-corrosion tape layer, so that moisture and oxygen in the air can be blocked, and the anti-corrosion structure can exhibit excellent anti-corrosion performance.
- the petrolatum-based anti-corrosion tape layer is preferably formed as follows: immersing the substrate in the anti-corrosion composition, making the substrate fully impregnated with the above-mentioned anti-corrosion composition, and then cooling to room temperature to obtain petrolatum Anti-corrosion tape layer.
- a nonwoven fabric is preferable, and a polyester nonwoven fabric is particularly preferable.
- the nonwoven fabric is a sheet formed by accumulating fibers, which is called a net or the like, and has a tensile strength stronger than that of the sheet (hereinafter, also referred to as "reinforcing yarn") in order to suppress the fibers from being separated from each other. ”) reinforced nonwoven.
- a nonwoven fabric reinforced with reinforcing yarns a nonwoven fabric in which the reinforcing yarns are sewn into the sheet body so as to form seams in the longitudinal direction is more preferable, in other words, a nonwoven fabric reinforced with warp yarns is more preferable. spinning.
- the shrinkage of the petrolatum-based anti-corrosion tape layer can be suppressed when the winding force is relaxed, and as a result, the operability of the winding is good.
- the reinforcing yarns are arranged side by side with a certain interval in the width direction.
- a nonwoven fabric reinforced with a reinforcing yarn a nonwoven fabric whose elongation rate with respect to a constant stress in the longitudinal direction is higher than that in the width direction is preferable.
- a nonwoven fabric not reinforced in the width direction is more preferable, in other words, a nonwoven fabric not reinforced with weft yarns is preferable.
- the width of the petrolatum-based anti-corrosion tape layer becomes narrow, but if there is a weft thread, the weft thread will hinder the petrolatum resin.
- the shrinkage in the width direction of the anti-corrosion tape layer tends to cause curling in the petrolatum-based anti-corrosion tape layer, but it is difficult to cause curling if there is no weft.
- the petrolatum-based anti-corrosion tape layer tends to follow the shape of the metal member, and gaps are less likely to occur between the petrolatum-based anti-corrosion tape layer and other layers formed on the metal member. Therefore, from the viewpoint of improving the anti-corrosion performance, as the non-woven fabric, a non-woven fabric that is not reinforced by a weft is preferable.
- the basis mass of the said base material becomes like this.
- it is 30-500 g/ m2 , More preferably, it is 40-400 g /m2, More preferably, it is 50-300 g/ m2 .
- the mass per unit area of the base material of the petrolatum-based anti-corrosion tape layer of the present embodiment is 30 g/m 2 or more, and has an advantage that the texture can be easily uniformized.
- the mass per unit area of the base material of the petrolatum-based anti-corrosion tape layer of the present embodiment is 500 g/m 2 or less, so that the petrolatum-based anti-corrosion tape layer does not become too hard.
- the layer has the advantage of good handleability when it is wound around the construction site.
- the amount of the anticorrosion composition impregnated in the base material of the petrolatum-based anticorrosion tape layer is preferably 300 to 5000 g/m 2 , more preferably 400 to 4000 g/m 2 , still more preferably 500 to 3000 g/m 2 .
- the amount of the anti-corrosion composition impregnated in the base material of the petrolatum-based anti-corrosion tape layer is 300 g/m 2 or more, and there is an advantage that the anti-corrosion performance can be improved.
- the amount of the anti-corrosion composition impregnated in the base material of the petrolatum-based anti-corrosion tape layer is 5000 g/m 2 or less, so that the petrolatum-based anti-corrosion tape layer does not become too hard, and the petrolatum anti-corrosion tape layer does not become too hard.
- the anti-corrosion tape layer has the advantage of good handling when it is wound in the construction site.
- amount of the said anti-corrosion composition immersed in the said base material means the quantity with respect to the area of one surface of a sheet-like base material of the anti-corrosion composition immersed in the whole base material.
- the anticorrosion composition preferably includes at least one selected from the group consisting of a radical oil (A1), an inorganic filler (A2), a rust inhibitor (A3), a colorant (A4) and a temperature-resistant upper material (A5). .
- petrolatum is mentioned, for example.
- Examples of the inorganic filler (A2) include various inorganic fillers commonly used in this field, such as talc, aluminum hydroxide, silica, clay, calcium carbonate, mica, magnesium hydroxide, and metal powder. As such an inorganic filler, conventionally well-known inorganic fillers can be used by a conventional method.
- the content of the inorganic filler (A2) is 50 to 120 parts by mass relative to 100 parts by mass of the base oil (A1). From the viewpoint of improving the strength of the anticorrosion structure, the content of the inorganic filler (A2) is preferably 60 parts by mass or more. The content of the inorganic filler (A2) is preferably 110 parts by mass or less, and more preferably 100 parts by mass or less, from the viewpoint of improving the adhesion of the anti-corrosion structure.
- rust inhibitor As a rust inhibitor (A3), an inorganic type rust inhibitor and an organic type rust inhibitor are mentioned, for example. These rust inhibitors can be used individually by 1 type or in combination of 2 or more types.
- an inorganic type rust inhibitor a chromate, a nitrite, a silicate, a polyphosphate etc. are mentioned, for example.
- organic rust inhibitor examples include tannic acid, carboxylic acid (oleic acid, dimer acid, naphthenic acid, etc.), carboxylic acid metal soap (lanolin Ca, naphthenic acid Zn, oxidized wax Ca, oxidized wax, etc.) Waxes Ba, etc.), sulfonates (Na sulfonate, Ca sulfonate, Ba sulfonate, etc.), amine salts, esters (esters obtained by reacting higher fatty acids with glycerin, sorbitan monoisostearyl esters) , sorbitan monooleate, etc.) and so on.
- carboxylic acid oleic acid, dimer acid, naphthenic acid, etc.
- carboxylic acid metal soap lanolin Ca, naphthenic acid Zn, oxidized wax Ca, oxidized wax, etc.
- Waxes Ba etc.
- sulfonates Na sulfonate, Ca sulf
- the tannic acid derived from gallnut is preferable.
- the content of the aforementioned rust inhibitor (A3) is 0.5 to 10 parts by mass, preferably 0.5 to 5 parts by mass, relative to 100 parts by mass of the base oil (A1).
- the anticorrosion performance of the anticorrosion structure can be further improved.
- coloring agent (A4) black lead, titanium dioxide, zinc oxide, graphite, carbon black, iron oxide, etc. are mentioned, for example. Among these, iron oxide is preferable. These colorants may be used alone or in combination of two or more.
- the content of the colorant (A4) is 0.5 to 5 parts by mass, preferably 0.5 to 2 parts by mass, relative to 100 parts by mass of the base oil (A1).
- thermoresistant upper material As a temperature resistant upper material (A5), an organobentonite, a crystal wax, etc. are mentioned, for example. These temperature-resistant upper materials may be used alone or in combination of two or more.
- Organobentonite is an inorganic mineral/organic ammonium compound, which can be made, for example, by using bentonite as a raw material, utilizing the lamellar structure of montmorillonite in bentonite and its ability to swell and disperse into a colloid in water or an organic solvent.
- Grade clay properties made by inserting organic capping agents through ion exchange technology.
- organic bentonite a commercial item can be used.
- Zhejiang Huate BP-186C etc. are mentioned, for example.
- the organobentonite absorbs oil in the base oil and swells to form a gel, thereby having the ability to capture or hold oil, thereby increasing the oil dropping point, thereby improving the anti-corrosion performance.
- the crystalline wax refers to a wax that exhibits a crystallization peak during a constant temperature increase of 10° C./min using a differential scanning calorimetry (DSC).
- DSC differential scanning calorimetry
- the crystalline wax is not limited to a single type of crystalline wax, but also includes multiple types of waxes used in combination, as long as the entirety exhibits crystallinity.
- the crystalline wax may include fatty acid amide-based waxes and hydrocarbon-based waxes (hydrocarbon waxes). These may be used individually by 1 type, or may be used in combination of 2 or more types. Among these, from the viewpoint of effectively raising the dropping point of the oil content, a fatty acid amide-based wax is preferable, and a fatty acid amide-based wax having a melting point of 120 to 160° C. is more preferable.
- hydrocarbon-based wax examples include paraffin wax, microcrystalline wax, Fischer-Tropsch wax, polyethylene wax, oxidized polyethylene wax, polypropylene wax, oxidized polypropylene wax, and the like.
- hydrocarbon type wax the polypropylene wax (PPW-0921) by Nanjing Tianshi Co., Ltd. etc. is mentioned, for example.
- the fatty acid amide-based wax may be a reaction product between a fatty acid and an amine. From the viewpoint of effectively increasing the dropping point of the oil content, it is preferable to use a fatty acid amide-based wax having 17 to 50 carbon atoms.
- fatty acid amide-based waxes include, for example, methylenebislauric acid amide, methylenebispalmitic acid amide, methylenebismyristic acid amide, methylenebisstearic acid amide, methylenebis Bisbehenamide, ethylenebislauric acid amide, ethylenebispalmitic acid amide, ethylenebismyristic acid amide, ethylenebisstearic acid amide or ethylenebisbehenic acid amide.
- the fatty acid amide-based wax may be synthesized by a conventionally known method, or may be purchased as a commercial item.
- microcrystals when it is heated to a melting point or higher and slowly cooled, microcrystals can be formed in the base oil, and a stable three-dimensional network structure can be formed. Increase the oil drop point, thereby improving the anti-corrosion performance.
- the melting point of the crystalline wax is preferably 120°C or higher, more preferably 130°C or higher, from the viewpoint of increasing the temperature under temperature-resistant flow. From the viewpoint of ease of processing, the melting point of the crystalline wax is preferably 160°C or lower, and more preferably 150°C or lower.
- the content of the temperature resistant upper material (A5) is 10-40 parts by mass, preferably 12-35 parts by mass, relative to 100 parts by mass of the base oil (A1).
- the dropping point of the oil can be increased, the dripping of the oil can be effectively improved, and thus it has excellent anti-corrosion performance.
- excellent adhesiveness can also be obtained, and it can be effectively adhered to the surface of the covering body.
- the content of the temperature-resistant upper material is less than 10 parts by mass, insufficient heat resistance is likely to occur, and it is difficult to achieve both excellent heat resistance and adhesiveness.
- the content of the temperature-resistant upper material is more than 40 parts by mass, it is easy to cause deterioration of workability and adhesion, which is unfavorable for industrial construction.
- the amount of the organobentonite added is preferably 10 parts by mass or more relative to 100 parts by mass of the base oil. From the viewpoint of ease of construction winding, the addition amount of the organobentonite is preferably 25 parts by mass or less, and more preferably 15 parts by mass or less.
- the amount of crystalline wax added is preferably 10 parts by mass or more, more preferably 15 parts by mass relative to 100 parts by mass of the base oil part by mass or more, more preferably 20 parts by mass or more.
- the addition amount of the crystalline wax is preferably 40 parts by mass or less, more preferably 35 parts by mass or less, and still more preferably 30 parts by mass or less.
- the amount of organobentonite added is preferably 5 to 20 parts by mass relative to 100 parts by mass of the base oil. parts, more preferably 5 to 15 parts, and the addition amount of the crystalline wax is preferably 5 to 20 parts.
- the anti-corrosion composition may contain, as necessary, various additives commonly used in the anti-corrosion field, such as surfactants, antioxidants, and antioxidants, within a range that does not impair the effects of the present invention.
- various additives such as surfactants, antioxidants, and antioxidants, conventionally known additives can be used by conventional methods.
- the temperature of the petrolatum anti-corrosion tape layer under temperature flow is above 90°C.
- the temperature-resistant flowing temperature of the petrolatum-based anti-corrosion tape layer is preferably 100 to 160°C, more preferably 110 to 150°C, and further preferably 120 to 140°C. If the temperature of the petrolatum-based anti-corrosion tape layer is less than 90° C., the heat resistance is poor, and the problems of oil separation and dripping are likely to occur, resulting in deterioration of anti-corrosion performance.
- the temperature-resistant under-flow temperature of the petrolatum-based anti-corrosion tape layer was measured by the method described in the examples of this specification.
- the peel strength of the petrolatum-based anti-corrosion tape layer is 600 N/m or more. From the viewpoint of improving adhesion, the peel strength of the petrolatum-based anticorrosion tape layer is preferably 800 N/m or more.
- the peel strength of the petrolatum-based anti-corrosion tape layer is preferably 2,000 N/m or less, more preferably 1,800 N/m or less, and further preferably 1,600 N/m or less, from the viewpoint of ease of construction and winding. In some preferred embodiments, the peel strength of the petrolatum anti-corrosion tape layer is preferably 800-1600 N/m.
- the peel strength of the petrolatum-based anti-corrosion tape layer is less than 600 N/m, the adhesiveness is poor, the anti-corrosion structure is easily detached from the adherend, and there is a problem that construction is difficult. If the peel strength of the petrolatum anti-corrosion tape layer is greater than 2000N/m, it is easy to increase the difficulty of construction winding, which is not conducive to construction. Peel strength of petrolatum anti-corrosion tape layer GB/T32119-2015 Appendix H Determination.
- the thickness of the petrolatum anti-corrosion tape layer is preferably 0.5-4 mm, more preferably 0.9-2.5 mm.
- the primer layer 1 is formed on the side of the coating body (eg, metal member) rather than the petrolatum-based anticorrosion tape layer 2, and is in contact with the surface of the coating body (eg, metal member).
- the anti-corrosion structure is provided with a primer coating
- the temperature-resistant flow under temperature of the primer layer is 70°C or higher.
- the temperature of the undercoat layer under temperature resistance is preferably 80° C. or higher from the viewpoint of the effect of suppressing oil dripping in a high temperature environment. From the viewpoint of easiness of processing, the temperature of the undercoat layer is preferably 110°C or lower, and more preferably 90°C or lower. If the temperature under temperature-resistant flow of the primer layer is less than 70° C., the heat resistance is poor, and the problems of oil separation and dripping are likely to occur, resulting in deterioration of the anti-corrosion performance.
- the temperature under temperature-resistant flow of the undercoat layer is measured by the method described in the examples of this specification.
- the primer layer can be formed by coating the primer composition on the surface of a substrate (eg, a metal member). That is, the primer layer may be formed from the primer composition.
- any appropriate primer composition can be used to form the primer layer as long as it has the above-mentioned temperature-resistant flow down temperature.
- the primer composition comprises a petrolatum based primer composition or an oxidatively polymerized primer composition.
- the petrolatum based primer composition preferably includes a free radical oil (B1), a rust inhibitor (B2), a reinforcing filler (B3), a softener (B4) and a temperature resistant upper material (B5) at least one of the group consisting of.
- the petrolatum based primer composition includes a temperature resistant upper material (B5).
- base oil As a base oil (B1), petrolatum, oxidized petrolatum, petrolatum, etc. are mentioned, for example. These base oils may be used alone or in combination of two or more.
- rust inhibitor As a rust inhibitor (B2), an inorganic type rust inhibitor and an organic type rust inhibitor are mentioned. These rust inhibitors can be used individually by 1 type or in combination of 2 or more types.
- an inorganic type rust inhibitor a chromate, a nitrite, a silicate, a phosphate, a polyphosphate etc. are mentioned, for example.
- organic rust inhibitor examples include tannic acid, carboxylic acid (oleic acid, dimer acid, naphthenic acid, etc.), carboxylic acid metal soap (lanolin Ca, naphthenic acid Zn, oxidized wax Ca, oxidized wax, etc.) Waxes Ba, etc.), sulfonates (Na sulfonate, Ca sulfonate, Ba sulfonate, etc.), amine salts, esters (esters obtained by reacting higher fatty acids with glycerin, sorbitan monoisostearyl esters) , sorbitan monooleate, etc.) and so on.
- carboxylic acid oleic acid, dimer acid, naphthenic acid, etc.
- carboxylic acid metal soap lanolin Ca, naphthenic acid Zn, oxidized wax Ca, oxidized wax, etc.
- Waxes Ba etc.
- sulfonates Na sulfonate, Ca sulf
- the tannic acid derived from gallnut is preferable.
- the content of the rust inhibitor (B2) is preferably 5 to 40 parts by mass, more preferably 5 to 20 parts by mass, relative to 100 parts by mass of the base oil (B1).
- the anticorrosion performance of the anticorrosion structure can be further improved.
- reinforcing filler (B3) examples include talc powder or talc particles, mineral mica, silica, clay, calcium carbonate, mica-like iron oxide, aluminum hydroxide, magnesium hydroxide, and the like. These reinforcing fillers may be used alone or in combination of two or more.
- talc powder, talc particles, and mineral mica are more preferable because they are excellent in reinforcing the primer composition and more effective in imparting shape retention to the primer composition.
- talc, talc particles, and mineral mica are preferably contained in the bottom of the reinforcing filler in a proportion of 90% by mass or more, preferably 95% by mass or more, and more preferably 100% by mass. in the coating composition.
- the median particle diameter of the talc particles determined by a laser diffraction particle size distribution analyzer is preferably 1 ⁇ m or more and 100 ⁇ m or less, more preferably 1 ⁇ m or more and 50 ⁇ m or less, and further preferably 10 ⁇ m or more and 40 ⁇ m or less .
- talc particles when sieved with a 75 ⁇ m mesh, 99% by mass or more of talc particles pass through a sieve (1 mass% or less of a sieve residue) is suitable.
- the content of the reinforcing filler (B3) is preferably 30-80 parts by mass, more preferably 40-70 parts by mass, relative to 100 parts by mass of the base oil (B1).
- the strength of the anticorrosion structure can be further improved.
- softener (B4) the organic compound whose molecular weight is lower than the said base oil is mentioned, for example, mineral oil (paraffin oil), petrolatum (white petrolatum, etc.) etc. are mentioned.
- the softener (B4) with respect to 100 parts by mass of the base oil (B1), the softener (B4)
- the content is preferably 20 to 80 parts by mass, more preferably 20 to 60 parts by mass.
- the content of the softening agent falls within the above-mentioned range, the corrosion resistance of the anti-corrosion structure can be further improved, and the workability of the primer layer formed from the primer composition is also excellent.
- thermoresistant upper material As a temperature resistant upper material (B5), an organobentonite, a crystalline wax, etc. are mentioned, for example. These temperature-resistant upper materials may be used alone or in combination of two or more.
- Organobentonite is an inorganic mineral/organic ammonium compound, which can be made, for example, by using bentonite as a raw material, utilizing the lamellar structure of montmorillonite in bentonite and its ability to swell and disperse into a colloid in water or an organic solvent.
- Grade clay properties made by inserting organic capping agents through ion exchange technology.
- organic bentonite a commercial item can be used.
- Zhejiang Huate BP-186C etc. are mentioned, for example.
- the organobentonite absorbs oil in the base oil and swells to form a gel, thereby having the ability to capture or support the oil, thereby increasing the drop point of the oil, thereby improving the anti-corrosion performance.
- the crystalline wax refers to a wax that exhibits a crystallization peak during a constant temperature increase of 10° C./min using a differential scanning calorimetry (DSC).
- DSC differential scanning calorimetry
- the crystalline wax is not limited to a single type of crystalline wax, but also includes multiple types of waxes used in combination, as long as the entirety exhibits crystallinity.
- the crystalline wax may include fatty acid amide-based waxes and hydrocarbon-based waxes (hydrocarbon waxes). These may be used individually by 1 type, or may be used in combination of 2 or more types. Among these, from the viewpoint of effectively raising the dropping point of the oil content, a fatty acid amide-based wax is preferable, and a fatty acid amide-based wax having a melting point of 120 to 160° C. is more preferable.
- hydrocarbon-based wax examples include paraffin wax, microcrystalline wax, Fischer-Tropsch wax, polyethylene wax, oxidized polyethylene wax, polypropylene wax, oxidized polypropylene wax, and the like.
- hydrocarbon type wax the polypropylene wax (PPW-0921) by Nanjing Tianshi Co., Ltd. etc. is mentioned, for example.
- the fatty acid amide-based wax may be a reaction product between a fatty acid and an amine. From the viewpoint of effectively increasing the dropping point of the oil content, it is preferable to use a fatty acid amide-based wax having 17 to 50 carbon atoms.
- fatty acid amide-based waxes include, for example, methylenebislauric acid amide, methylenebispalmitic acid amide, methylenebismyristic acid amide, methylenebisstearic acid amide, methylenebis Bisbehenamide, ethylenebislauric acid amide, ethylenebispalmitic acid amide, ethylenebismyristic acid amide, ethylenebisstearic acid amide or ethylenebisbehenic acid amide.
- the fatty acid amide-based wax may be synthesized by a conventionally known method, or may be purchased as a commercial item.
- the primer composition of the present invention by including a crystalline wax, when heated to a melting point or higher and slowly cooled, microcrystals can be formed in the base oil, and a stable three-dimensional network structure can be formed, so that it can play a role of supporting oil. Therefore, the dropping point of the oil can be increased, thereby improving the anti-corrosion performance.
- the melting point of the crystalline wax is preferably 120°C or higher, more preferably 130°C or higher, from the viewpoint of increasing the temperature under temperature-resistant flow. From the viewpoint of ease of processing, the melting point of the crystalline wax is preferably 160°C or lower, and more preferably 150°C or lower.
- the content of the temperature resistant upper material (B5) is preferably 5-40 parts by mass, preferably 10-36 parts by mass, relative to 100 parts by mass of the base oil (B1).
- the dropping point of the oil can be increased, the dripping of the oil can be effectively improved, and thus it has excellent anti-corrosion performance.
- excellent adhesiveness can also be obtained, and it can be effectively adhered to the surface of a coating body (eg, a metal member) or the like.
- the content of the temperature-resistant upper material is less than 5 parts by mass, insufficient heat resistance is likely to occur, and it is difficult to achieve both excellent heat resistance and adhesiveness.
- the content of the temperature-resistant upper material is more than 40 parts by mass, it is easy to cause deterioration of workability and adhesion, which is unfavorable for industrial construction.
- the above-mentioned petrolatum-based primer composition may contain, as necessary, a viscosity modifier, a coupling agent, a surfactant, an antioxidant, an antiaging agent, an antifungal agent, Various additives commonly used in the field of anti-corrosion such as insect repellents, rodent repellants, and antibacterial agents. As such various additives, conventionally known additives can be used by conventional methods.
- oxidatively polymerizable primer composition a commercially available product, for example, an oxidatively polymerizable primer XG-PN manufactured by Nitto Denko Co., Ltd. can be used.
- UV blocking layer [ultraviolet rays blocking layer (UV blocking layer)]
- the anti-corrosion structure of the present embodiment has a UV blocking layer on the air interface side of the petrolatum-based anti-corrosion tape layer, so that irradiation of ultraviolet rays can be blocked, and damage to the anti-corrosion structure can be suppressed. As a result, even if the anti-corrosion structure is used for In outdoor environments, it can also have excellent anti-corrosion performance and anti-corrosion life.
- the UV blocking layer may be a protective coating layer or protective tape.
- a protective coating layer formed of an acrylic coating, a urethane coating, an epoxy coating, or the like can be used as the protective coating layer.
- the formation method of the protective coating layer is not particularly limited, and it can be formed by a conventionally known method. For example, it can be formed by applying an acrylic coating or the like to the surface of a release liner having releasability, drying it, and then peeling off the release liner. form.
- acrylic paint a commercial item can be used, for example, XG-T by Nitto Denko Co., Ltd. is mentioned.
- a urethane paint a commercial item can be used, for example, the housing guard urethane waterproof paint manufactured by Shanghai Hanlong Industrial Co., Ltd. is exemplified.
- the coating material is coated on the surface of the petrolatum-based anti-corrosion tape layer, and then dried and cured to constitute the main body of the coating film.
- the UV blocking layer is preferably a protective tape.
- the protective tape it is preferably formed of a protective layer and an optional adhesive layer.
- the protective layer for example, polyvinyl chloride, polyethylene, polypropylene, butyl rubber, asphalt, aluminum film, polyester, polyurethane, synthetic rubber and the like can be mentioned. From the viewpoint of workability, polyvinyl chloride and polyethylene are preferable.
- the protective layer may have an adhesive layer on the surface.
- a pressure-sensitive adhesive which forms this pressure-sensitive adhesive layer, a rubber-type pressure-sensitive adhesive, an acrylic pressure-sensitive adhesive, etc. are mentioned, for example.
- the protective tape preferably further contains an ultraviolet absorber.
- the ultraviolet transmittance (UV transmittance) of the UV blocking layer is preferably 1% or less, and more preferably 0.5% or less.
- the anti-corrosion structure of the present embodiment can block ultraviolet radiation by making the UV transmittance of the UV blocking layer 1% or less, thereby suppressing ultraviolet degradation of the anti-corrosion structure, and further suppressing the coating (such as metal components) corrosion.
- UV (ultraviolet) in the said UV transmittance means the wavelength of 300 nm.
- the thickness of the UV blocking layer is preferably 0.1-3 mm, more preferably 0.1-1.5 mm.
- the UV blocking layer may be one layer or two or more layers.
- the irregularly shaped concave and convex parts on the surface of the primer coating layer are filled with an anti-corrosion mortar layer to obtain a smooth surface, which is convenient for applying and wrapping a petrolatum anti-corrosion tape layer.
- the present invention does not specifically limit the filling amount of the anti-corrosion mortar, and those skilled in the art can adjust and select according to the actual use environment, product requirements or anti-corrosion requirements.
- the filling method of the anti-corrosion mortar is preferably to fill the irregularly shaped uneven parts into smooth transitions or smooth slopes with slopes.
- the specific process of filling the anti-corrosion mortar is not particularly limited, and the conventional process of filling such anti-corrosion materials well known to those skilled in the art can be used. From the perspective of improving the effect of comprehensive protection, the specific process of filling the anti-corrosion mortar is preferably as follows: filling the irregular-shaped parts with the anti-corrosion mortar, for special-shaped structures such as bolts, nuts and vertical corners, fill the anti-corrosion mortar with anti-corrosion mortar.
- the smooth transition of a certain slope is convenient for the subsequent pasting of the petrolatum anti-corrosion tape layer, and prevents the accumulation of rainwater, etc.
- a commercial item can be used for the anticorrosion mortar for filling, for example, XG-M by Nitto Denko Co., Ltd. is mentioned.
- the anti-corrosion structures disclosed herein can be widely used in various general environments, such as outdoor use, long-term exposure to high temperature environments, places exposed to direct sunlight, and the like.
- the constant temperature drying oven was adjusted to keep it at the set temperature (40°C).
- Select 3 Q235 steel plates of 80mm ⁇ 60mm ⁇ (3 ⁇ 5)mm grind them with 240# sandpaper in the extended edge direction, use gauze dipped in acetone or ethanol to clean the steel pipe, remove the surface debris, and dry the surface.
- a 100-150um thick base coat sample film is applied to the scribed side of the experimental steel plate.
- the above-mentioned device as a whole into a constant temperature drying oven with a good temperature, keep it vertical, and observe whether the sample film flows to the reference line after 24 hours. If the sample films of the three experimental steel plates did not flow or did not flow to the reference line, it was judged to be qualified. Otherwise, it is judged to be unqualified. If it is qualified, the above experiment is repeated by gradually increasing the temperature at 10°C intervals until the sample film is observed to flow, and the temperature point before the flow of the sample film is recorded as the temperature under temperature resistance.
- a sample of 500 mm ⁇ 50 mm was cut out from the petrolatum-based anticorrosion tape layer of each example and each comparative example. Adjust the constant temperature drying oven to keep it at the set temperature. Use gauze dipped in acetone or ethanol to clean the steel pipe, remove the surface debris, and dry the surface. Wrap the sample twice in the middle of the steel pipe, remove the excess sample, and smooth the surface. Place the steel tube with the wrapped sample on the support and place the tray under it. Put the above-mentioned device as a whole into a constant temperature drying box with a good temperature, keep it horizontal, and observe whether there is any compound dripping in the tray after 24 hours. If there is no dripping, repeat the above experiment by gradually increasing the temperature at 10°C intervals until the compound is observed. When the compound drops, the previous temperature point of the droplet temperature of the compound is recorded as the temperature under temperature-resistant flow.
- the peel strength is determined according to Appendix H of GB/T32119-2015.
- the petrolatum anti-corrosion tape layer of each example and each comparative example was placed under the test environment condition of (23 ⁇ 2)°C for 24h, and 150mm ⁇ 25mm was cut out as a sample.
- the above-mentioned petrolatum anti-corrosion tape layer sample is attached to one end of the test steel plate (304 stainless steel), and the contact surface is about 50mm ⁇ 25mm.
- a polyester film with a thickness of 25 ⁇ m and a size of 150 mm ⁇ 50 mm was placed on the above-mentioned sample, and rolled back and forth once with a rolling device weighing about 2 kg, so that the above-mentioned sample was tightly adhered to the steel plate.
- UV blocking layer After the UV blocking layer is dried, it is placed in an oven, and the setting conditions are: -20°C (4h) ⁇ 80°C (8h) for thermal cycling experiments.
- a steel plate having a width of 100 mm (length) ⁇ 70 mm (width) was used.
- Use 240# sandpaper to polish the extended edge direction use gauze dipped in acetone or ethanol to clean the steel pipe, remove the sundries on the surface, and dry the surface.
- the primer layer (300g/m 2 ) in turn, wrap the petrolatum anti-corrosion tape layer, the petrolatum anti-corrosion tape layer is 150mm (length) ⁇ 100mm (width) single layer wrapped on the upper side of the steel pipe, and then in the mine.
- a UV blocking layer is arranged on the lipid anti-corrosion tape layer to form an anti-corrosion structure.
- the anti-corrosion structure sample prepared above was put into the xenon lamp aging tester, and the setting conditions were: air temperature 38°C, BPT: 63°C, irradiation amount 180W/m 2 , 18min water spray/2h.
- a steel plate of 100 mm (length) x 70 mm (width) was used.
- Use 240# sandpaper to polish the extended edge direction use gauze dipped in acetone or ethanol to clean the steel pipe, remove the sundries on the surface, and dry the surface.
- the primer layer (300g/m 2 ) in turn, wrap the petrolatum anti-corrosion tape layer, the petrolatum anti-corrosion tape layer is 150mm (length) ⁇ 100mm (width) single layer wrapped on the upper side of the steel pipe, and then in the mine.
- a UV blocking layer is arranged on the lipid anti-corrosion tape layer to form an anti-corrosion structure.
- the above-prepared anti-corrosion structure samples were placed in an oven, and the setting conditions were: -20°C (4h) ⁇ 80°C (8h) for a thermal cycle experiment for 1000h.
- the heat-treated samples were placed in a salt spray test chamber for corrosion test for 2000h.
- the conditions of the corrosion test are:
- Oxidative polymerization type primer 4 NITOHULLMAC XG-PN manufactured by Nitto Denko Co., Ltd.
- the polyester non-woven fabric is dipped into the above-prepared mixture, the polyester non-woven fabric is fully impregnated with the mixture, and the mixture is cooled to room temperature to prepare the petrolatum-based anti-corrosion tape layer 1 .
- the thickness of the petrolatum-based anti-corrosion tape layer 1 is 1.1 mm.
- the temperature of the petrolatum-based anti-corrosion tape layer 1 is 120°C under temperature resistance.
- the polyester non-woven fabric was dipped into the above-prepared mixture, and the polyester non-woven fabric was fully impregnated with the mixture, and then cooled to room temperature to prepare the petrolatum-based anti-corrosion tape layer 2 .
- the thickness of the petrolatum-based anti-corrosion tape layer 2 is 1.1 mm.
- the temperature of the petrolatum-based anti-corrosion tape layer 2 under temperature flow is 100°C.
- the polyester non-woven fabric is dipped into the above-prepared mixture, the polyester non-woven fabric is fully impregnated with the mixture, and the mixture is cooled to room temperature to prepare the petrolatum-based anti-corrosion tape layer 3 .
- the thickness of the petrolatum-based anti-corrosion tape layer 3 is 1.1 mm.
- the temperature of the petrolatum-based anti-corrosion tape layer 3 under temperature-resistant flow is 60°C.
- Oxidative polymerization type paint NITOHULLMAC XG-T manufactured by Nitto Denko Co., Ltd.
- PU coating Houseguard polyurethane waterproof coating manufactured by Shanghai Hanlong Industrial Co., Ltd.
- the coating protected by the anti-corrosion structure is made of Q235 steel pipe or steel plate.
- the petrolatum-based primer material 1 prepared in the above-mentioned Preparation Example 1 was used.
- the above-mentioned petrolatum-based primer material 1 was applied to the surface of a steel pipe or steel sheet in a coating amount of 300 g/m 2 to form a primer layer.
- the petrolatum-based anti-corrosion tape layer 1 prepared in the above-mentioned Preparation Example 5 was wound on the above-mentioned undercoat layer in a semi-wrapped manner.
- An anti-corrosion structure was obtained in the same manner as in Example 1, except that the primer layer, the petrolatum-based anti-corrosion tape layer, and the UV blocking layer were changed as shown in Table 1. The evaluation results are shown in Table 1.
- An anti-corrosion structure was obtained in the same manner as in Example 1, except that the primer layer, the petrolatum-based anti-corrosion tape layer, and the UV blocking layer were changed as shown in Table 1. The evaluation results are shown in Table 1.
- Examples 1 to 5 were analyzed without oil, and the evaluation results of durability (ultraviolet resistance) and durability (thermal cycle 1000h + salt spray test 2000h) were excellent, even when used in outdoor environments, such as high temperature environments Even in places exposed to direct sunlight, it has excellent anti-corrosion properties, can achieve both excellent heat resistance and adhesiveness, and is excellent in workability.
- the anti-corrosion structures of Examples 1 to 5 with aluminum hydroxide added have the characteristics of flame retardancy, which can effectively deal with sudden fires to a certain extent, reduce the degree of damage to equipment and facilities by fires, and ensure the safety and reduction of personnel. The damage caused by fire can be used in the anti-corrosion protection of equipment or buildings that need to be flame retardant.
- the anti-corrosion structure of the present invention can be used in an outdoor environment, even when used in a high-temperature environment or a place exposed to direct sunlight, it can also have excellent anti-corrosion performance, can effectively block ultraviolet rays, have a long anti-corrosion life, and can be painted. Excellent in appearance, and also excellent in heat resistance, UV resistance, and workability.
- the anti-corrosion structure of the present invention is suitable for coating anti-corrosion of structures of any shape, and has wide application prospects in outdoor environments.
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Abstract
Provided is an anti-corrosion structure body. The anti-corrosion structure body of the present invention comprises: a petrolatum-type anti-corrosion tape layer; a bottom coating arranged on one side of the petrolatum-type anti-corrosion tape layer; and an ultraviolet ray blocking layer arranged on the side of the petrolatum-type anti-corrosion tape layer opposite the bottom coating, wherein the temperature-resistant flow-down temperature of the petrolatum-type anti-corrosion tape layer is 90°C or more, and the peel strength of the petrolatum-type anti-corrosion tape layer is 600 N/m or more. The petrolatum-type anti-corrosion tape layer comprises a temperature-resistant upward material comprising organic bentonite and/or crystalline wax, and the temperature-resistant flow-down temperature of the bottom coating is 70°C or more. The anti-corrosion structure body of the present invention can be used in an outdoor environment, and can also have an excellent anti-corrosion performance even when used in a high-temperature environment or a place irradiated by direct sunlight. The anti-corrosion structure body can effectively block ultraviolet rays, has a long anti-corrosion life, excellent coating performance and appearance, and also has excellent heat resistance, ultraviolet ray resistance and construction performance.
Description
本发明涉及一种防腐蚀结构体，尤其涉及防腐蚀性、耐高温性、涂装性和外观优异且防腐寿命长的防腐蚀结构体。The present invention relates to an anti-corrosion structure, in particular to an anti-corrosion structure with excellent corrosion resistance, high temperature resistance, paintability and appearance, and long anti-corrosion life.
矿脂类防腐胶带由于价格低廉作为防腐蚀产品被广泛应用。目前，矿脂类防腐胶带主要用于海洋或地下埋设管路。虽然矿脂类防腐胶带对于处于海洋中或地下埋设的设备可以实现防腐效果，但将其用在室外环境中时，寿命却大大缩短。例如，当将矿脂类防腐胶带用于海洋或地下埋设管路时，其使用寿命可为10年以上，但将其用在室外环境中时，寿命却大大缩短到3年左右。造成使用寿命缩短的原因之一是矿脂材料不耐紫外线，受光照后矿脂分子链断裂。Petrolatum anti-corrosion tapes are widely used as anti-corrosion products due to their low price. At present, petrolatum anti-corrosion tapes are mainly used for marine or underground pipelines. Although petrolatum-based anti-corrosion tape can achieve anti-corrosion effect on equipment in the ocean or buried in the ground, when it is used in an outdoor environment, its life is greatly shortened. For example, when the petrolatum anti-corrosion tape is used in marine or underground pipelines, its service life can be more than 10 years, but when it is used in an outdoor environment, the service life is greatly shortened to about 3 years. One of the reasons for the shortened service life is that the petrolatum material is not resistant to ultraviolet rays, and the petrolatum molecular chain is broken after being exposed to light.
另外，矿脂类防腐胶带的耐热性不足，在室外环境下容易发生油分(矿脂)的析出和滴落，胶带表面粘腻，防腐蚀效果变差，防腐寿命缩短。In addition, the heat resistance of petrolatum-based anti-corrosion tapes is insufficient, and the precipitation and dripping of oil (petroleum) easily occurs in outdoor environments, the surface of the tape is sticky, the anti-corrosion effect is deteriorated, and the anti-corrosion life is shortened.
为了解决上述问题，有报道在防腐胶带外部涂布涂料或是使用保护带。但是，在防腐胶带外部涂布涂料或是使用保护带的情况下，由于油分的析出和滴落会导致表面涂层难以涂布，或者油分会从涂料的薄弱处或是胶带的接缝处流出，导致外观不良，影响外包裹层的使用寿命。In order to solve the above problems, it has been reported that coatings are applied to the outside of the anti-corrosion tape or a protective tape is used. However, in the case of coating the outside of the anti-corrosion tape or using a protective tape, the surface coating may be difficult to apply due to the precipitation and dripping of oil, or the oil may flow out from the weak part of the coating or the joint of the tape. , resulting in poor appearance and affecting the service life of the outer wrapping layer.
因此，提供在室外环境中不出油、不滴油、具有优异的耐热性、防腐蚀性、涂装性和外观且可以长时间发挥防腐蚀性能的防腐蚀材料成为亟待解决的重要课题。Therefore, it is an important issue to be solved urgently to provide anti-corrosion materials that do not contain oil or drip oil in an outdoor environment, have excellent heat resistance, corrosion resistance, paintability and appearance, and can exhibit anti-corrosion performance for a long time.
发明内容SUMMARY OF THE INVENTION
发明要解决的问题Invention to solve problem
本发明是为了解决上述现有的问题而作出的，其目的在于，提供一种防 腐蚀结构体，该防腐蚀结构体可用于室外环境中，具有优异的防腐蚀性、涂装性和外观，并且防腐寿命长，耐热性、耐紫外线性和施工性也优异。The present invention is made in order to solve the above-mentioned existing problems, and its object is to provide an anti-corrosion structure which can be used in an outdoor environment and has excellent anti-corrosion, paintability and appearance, In addition, it has a long anti-corrosion life and excellent heat resistance, UV resistance and workability.
用于解决问题的方案solution to the problem
本发明人等为了实现上述目的而进行了深入研究，结果发现通过如下的技术方案的实施，能够实现上述目的。The inventors of the present invention have conducted intensive studies in order to achieve the above-mentioned object, and as a result, found that the above-mentioned object can be achieved by implementing the following technical means.
即，本发明如下所述。That is, the present invention is as follows.
[1]一种防腐蚀结构体，其具有：[1] An anti-corrosion structure having:
矿脂类防腐蚀带层；Petrolatum anti-corrosion belt layer;
底涂层，所述底涂层设置在所述矿脂类防腐蚀带层的一侧上；和a primer layer disposed on one side of the petrolatum-based anti-corrosion tape layer; and
紫外线遮断层，所述紫外线遮断层设置在所述矿脂类防腐蚀带层的与所述底涂层相反的一侧，an ultraviolet shielding layer, the ultraviolet shielding layer is arranged on the opposite side of the petrolatum anticorrosion belt layer and the primer layer,
所述矿脂类防腐蚀带层的耐温流下温度为90℃以上，The temperature of the petrolatum anti-corrosion tape layer under temperature resistance is 90°C or more,
所述矿脂类防腐蚀带层的剥离强度为600N/m以上，The peeling strength of the petrolatum anti-corrosion tape layer is more than 600N/m,
所述矿脂类防腐蚀带层包含耐温向上材A5，The petrolatum anti-corrosion tape layer contains temperature resistant upper material A5,
所述耐温向上材A5包括有机膨润土和/或结晶蜡，The temperature resistant upper material A5 comprises organobentonite and/or crystalline wax,
所述底涂层的耐温流下温度为70℃以上。The temperature under temperature-resistant flow of the undercoat layer is 70°C or higher.
[2]根据[1]所述的防腐蚀结构体，所述矿脂类防腐蚀带层还包含基油A1，[2] The anti-corrosion structure according to [1], wherein the petrolatum-based anti-corrosion tape layer further contains a base oil A1,
相对于100质量份所述基油A1，所述耐温向上材A5的含量为10～40质量份。The content of the temperature resistant upper material A5 is 10 to 40 parts by mass relative to 100 parts by mass of the base oil A1.
[3]根据[1]所述的防腐蚀结构体，所述矿脂类防腐蚀带层还包含基油A1和无机填料A2，[3] The anti-corrosion structure according to [1], wherein the petrolatum-based anti-corrosion tape layer further comprises a base oil A1 and an inorganic filler A2,
相对于100质量份所述基油A1，所述无机填料A2的含量为50～120质量份。The content of the inorganic filler A2 is 50 to 120 parts by mass relative to 100 parts by mass of the base oil A1.
[4]根据[3]所述的防腐蚀结构体，所述无机填料A2包括选自由滑石粉、氢氧化铝和氢氧化镁组成的组中的至少一种。[4] The anticorrosion structure according to [3], wherein the inorganic filler A2 includes at least one selected from the group consisting of talc, aluminum hydroxide, and magnesium hydroxide.
[5]根据[1]～[4]中任一项所述的防腐蚀结构体，所述矿脂类防腐蚀带层具有难燃的特性。[5] The anti-corrosion structure according to any one of [1] to [4], wherein the petrolatum-based anti-corrosion tape layer has a flame-retardant property.
[6]根据[1]～[5]中任一项所述的防腐蚀结构体，所述底涂层由底涂组合物形成，[6] The anticorrosion structure according to any one of [1] to [5], wherein the undercoat layer is formed of an undercoat composition,
所述底涂组合物包含矿脂类底涂组合物或氧化聚合型底涂组合物，The primer composition comprises a petrolatum based primer composition or an oxidatively polymerized primer composition,
所述矿脂类底涂组合物包含耐温向上材B5，The petrolatum based primer composition comprises temperature resistant upper material B5,
优选地，所述耐温向上材B5包括有机膨润土和/或结晶蜡。Preferably, the temperature resistant upper material B5 comprises organobentonite and/or crystalline wax.
[7]根据[6]所述的防腐蚀结构体，所述矿脂类底涂组合物还包含基油B1，[7] The anticorrosion structure according to [6], wherein the petrolatum-based primer composition further comprises a base oil B1,
相对于100质量份所述基油B1，所述耐温向上材B5的含量为5～80质量份。The content of the temperature resistant upper material B5 is 5 to 80 parts by mass relative to 100 parts by mass of the base oil B1.
[8]根据[1]～[7]中任一项所述的防腐蚀结构体，所述紫外线遮断层的紫外线透过率为1％以下。[8] The anticorrosion structure according to any one of [1] to [7], wherein the ultraviolet transmittance of the ultraviolet shielding layer is 1% or less.
[9]根据[1]～[8]中任一项所述的防腐蚀结构体，所述防腐蚀结构体还包括防蚀胶泥层，所述防蚀胶泥层设置在所述底涂层和所述矿脂类防腐蚀带层之间。[9] The anti-corrosion structure according to any one of [1] to [8], further comprising an anti-corrosion mastic layer, the anti-corrosion mastic layer being provided on the primer layer and the base coat layer. between the petrolatum anti-corrosion belt layers.
发明的效果effect of invention
本发明的防腐蚀结构体能够用于室外环境中，即使用于高温环境或有直射日光照射的场所时，也能够具有优异的防腐蚀性能，能够有效阻隔紫外线，防腐寿命长，涂装性和外观优异，并且耐热性、耐紫外线性和施工性也优异。另外，本发明的防腐蚀结构体适用于任何形状结构物的包覆防腐，在室外环境中具有广泛的应用前景。The anti-corrosion structure of the present invention can be used in an outdoor environment, even when used in a high-temperature environment or a place exposed to direct sunlight, it can also have excellent anti-corrosion performance, can effectively block ultraviolet rays, have a long anti-corrosion life, and can be painted. Excellent in appearance, and also excellent in heat resistance, UV resistance, and workability. In addition, the anti-corrosion structure of the present invention is suitable for coating anti-corrosion of structures of any shape, and has wide application prospects in outdoor environments.
图1是示意性表示本发明一个实施方式的防腐蚀结构体的结构的截面图。FIG. 1 is a cross-sectional view schematically showing the structure of a corrosion-resistant structure according to an embodiment of the present invention.
图2是示意性表示本发明的另一实施方式的防腐蚀结构体的结构的截面图。2 is a cross-sectional view schematically showing the structure of a corrosion-resistant structure according to another embodiment of the present invention.
附图标记说明Description of reference numerals
10防腐蚀结构体10 Anti-corrosion structure
1底涂层1 base coat
2矿脂类防腐蚀带层2 Petrolatum anti-corrosion tape
3紫外线遮断层3 UV blocking layer
4防蚀胶泥层4 anti-corrosion mortar layer
以下，针对本发明的内容进行详细说明。以下所记载的技术特征的说明基于本发明的代表性的实施方案、具体例子而进行，但本发明不限定于这些实施方案、具体例子。需要说明的是：Hereinafter, the content of the present invention will be described in detail. The description of the technical features described below is based on typical embodiments and specific examples of the present invention, but the present invention is not limited to these embodiments and specific examples. It should be noted:
本说明书中，使用“数值A～数值B”表示的数值范围是指包含端点数值A、B的范围。In the present specification, the numerical range represented by "numerical value A to numerical value B" means a range including numerical values A and B at the endpoints.
本说明书中，使用“以上”或“以下”表示的数值范围是指包含本数的数值范围。In this specification, the numerical range expressed using "above" or "below" means a numerical range including this number.
本说明书中，使用“可以”表示的含义包括了进行某种处理以及不进行某种处理两方面的含义。In this specification, the meaning expressed by "may" includes both the meaning of performing a certain processing and not performing a certain processing.
本说明书中，使用“任选”或“任选的”表示某些物质、组分、执行步骤、施加条件等因素使用或者不使用。In this specification, the use of "optional" or "optional" means that certain substances, components, execution steps, application conditions and other factors are used or not used.
本说明书中，所使用的单位名称均为国际标准单位名称。In this manual, the unit names used are all international standard unit names.
本说明书中，如没有特别声明，则“多(个/种)”指的是具有两个/种或两个/种以上的情况。In this specification, unless otherwise stated, "multiple (pieces/kinds)" refers to the case of having two/kinds or more than two/kinds.
本说明书中，所提及的“一些具体/优选的实施方式”、“另一些具体/优选的实施方式”、“实施方式”等是指所描述的与该实施方式有关的特定要素(例如，特征、结构、性质和/或特性)包括在此处所述的至少一种实施方式中，并且可存在于其它实施方式中或者可不存在于其它实施方式中。另外，应理解，所述要素可以任何合适的方式组合在各种实施方式中。In this specification, references to "some specific/preferred embodiments", "other specific/preferred embodiments", "embodiments", etc. refer to the specific elements described in relation to the embodiments (eg, features, structures, properties and/or characteristics) are included in at least one embodiment described herein, and may or may not be present in other embodiments. Additionally, it should be understood that the described elements may be combined in any suitable manner in the various embodiments.
<防腐蚀结构体><Anti-corrosion structure>
本发明的防腐蚀结构体，具有：The anti-corrosion structure of the present invention has:
矿脂类防腐蚀带层；Petrolatum anti-corrosion belt layer;
底涂层，所述底涂层设置在所述矿脂类防腐蚀带层的一侧上；和a primer layer disposed on one side of the petrolatum-based anti-corrosion tape layer; and
紫外线遮断层，所述紫外线遮断层设置在所述矿脂类防腐蚀带层的与所述底涂层相反的一侧，an ultraviolet shielding layer, the ultraviolet shielding layer is arranged on the opposite side of the petrolatum anticorrosion belt layer and the primer layer,
所述矿脂类防腐蚀带层的耐温流下温度为90℃以上，The temperature of the petrolatum anti-corrosion tape layer under temperature resistance is 90°C or more,
所述矿脂类防腐蚀带层的剥离强度为600N/m以上，The peeling strength of the petrolatum anti-corrosion tape layer is more than 600N/m,
所述矿脂类防腐蚀带层包含耐温向上材A5，，The petrolatum anti-corrosion tape layer contains temperature resistant upper material A5,
所述耐温向上材A5包括有机膨润土和/或结晶蜡，The temperature resistant upper material A5 comprises organobentonite and/or crystalline wax,
所述底涂层的耐温流下温度为70℃以上。The temperature under temperature-resistant flow of the undercoat layer is 70°C or higher.
图1是示意性表示本发明一个实施方式的防腐蚀结构体的结构的截面图。如图1所示，防腐蚀结构体10具备底涂层1、设置于底涂层1上的矿脂类防腐蚀带层2以及设置于矿脂类防腐蚀带层2上的紫外线遮断层3。FIG. 1 is a cross-sectional view schematically showing the structure of a corrosion-resistant structure according to an embodiment of the present invention. As shown in FIG. 1 , the anti-corrosion structure 10 includes a primer layer 1 , a petrolatum-based anti-corrosion tape layer 2 provided on the primer layer 1 , and an ultraviolet blocking layer 3 provided on the petrolatum-based anti-corrosion tape layer 2 . .
图2是示意性表示本发明的另一实施方式的防腐蚀结构体的结构的截面图。如图2所示，防腐蚀结构体10具备底涂层1、设置于底涂层1上的矿脂类防蚀胶泥层4、设置于防蚀胶泥层4上的矿脂类防腐蚀带层2、设置于矿脂类防腐蚀带层2上的紫外线遮断层3。2 is a cross-sectional view schematically showing the structure of a corrosion-resistant structure according to another embodiment of the present invention. As shown in FIG. 2 , the anti-corrosion structure 10 includes a primer layer 1 , a petrolatum-based anti-corrosion mortar layer 4 provided on the primer layer 1 , and a petrolatum-based anti-corrosion tape layer provided on the anti-corrosion mortar layer 4 2. The ultraviolet shielding layer 3 arranged on the petrolatum anti-corrosion belt layer 2 .
[矿脂类防腐蚀带层][Petroleum anti-corrosion tape layer]
本实施方式的防腐蚀结构体通过具备矿脂类防腐蚀带层，可以隔绝空气中的水分和氧气，防腐蚀结构体能够发挥优异的防腐蚀性能。The anti-corrosion structure of the present embodiment is provided with the petrolatum-based anti-corrosion tape layer, so that moisture and oxygen in the air can be blocked, and the anti-corrosion structure can exhibit excellent anti-corrosion performance.
在一些优选的实施方式中，矿脂类防腐蚀带层优选如下形成：将基材浸渍于防蚀组合物中，使该基材充分含浸上述防蚀组合物后冷却到室温制得矿脂类防腐蚀带层。In some preferred embodiments, the petrolatum-based anti-corrosion tape layer is preferably formed as follows: immersing the substrate in the anti-corrosion composition, making the substrate fully impregnated with the above-mentioned anti-corrosion composition, and then cooling to room temperature to obtain petrolatum Anti-corrosion tape layer.
作为基材，优选无纺布，特别优选聚酯无纺布。As the base material, a nonwoven fabric is preferable, and a polyester nonwoven fabric is particularly preferable.
前述无纺布优选的是：被称为网等的、为了抑制纤维彼此散开而对使纤维堆积而成的片体利用拉伸强度比该片体强的丝(以下也称为“加强丝”)进行了加强的无纺布。Preferably, the nonwoven fabric is a sheet formed by accumulating fibers, which is called a net or the like, and has a tensile strength stronger than that of the sheet (hereinafter, also referred to as "reinforcing yarn") in order to suppress the fibers from being separated from each other. ”) reinforced nonwoven.
另外，作为利用加强丝进行了加强的无纺布，更优选加强丝以沿着长度方向形成接缝的方式被缝入片体的无纺布，换言之，更优选用经丝进行了加强的无纺布。通过使无纺布如此地构成，在将矿脂类防腐蚀带层卷绕于如圆 筒状的金属制构件时，能够抑制矿脂类防腐蚀带层因加强丝而伸长。其结果，能够在施加了较大的张力的状态下将矿脂类防腐蚀带层卷绕于金属制构件。另外，在放松卷绕力时能够抑制矿脂类防腐蚀带层收缩，其结果，卷绕的操作性良好。该无纺布更优选前述加强丝在宽度方向上设置一定间隔而并列配置。In addition, as a nonwoven fabric reinforced with reinforcing yarns, a nonwoven fabric in which the reinforcing yarns are sewn into the sheet body so as to form seams in the longitudinal direction is more preferable, in other words, a nonwoven fabric reinforced with warp yarns is more preferable. spinning. By configuring the nonwoven fabric in this way, when the petrolatum-based anti-corrosion tape layer is wound around a cylindrical metal member, the elongation of the petrolatum-based anti-corrosion tape layer due to the reinforcing yarn can be suppressed. As a result, the petrolatum-based anti-corrosion tape layer can be wound around the metal member in a state where a large tension is applied. In addition, the shrinkage of the petrolatum-based anti-corrosion tape layer can be suppressed when the winding force is relaxed, and as a result, the operability of the winding is good. In this nonwoven fabric, it is more preferable that the reinforcing yarns are arranged side by side with a certain interval in the width direction.
进而，作为利用加强丝进行了加强的无纺布，优选长度方向上的相对于一定应力的伸长率比宽度方向高的无纺布。Furthermore, as a nonwoven fabric reinforced with a reinforcing yarn, a nonwoven fabric whose elongation rate with respect to a constant stress in the longitudinal direction is higher than that in the width direction is preferable.
另外，作为用加强丝进行了加强的无纺布，更优选宽度方向上未进行加强的无纺布，换言之，优选没有进行利用纬丝的加强的无纺布。在将矿脂类防腐蚀带层卷绕于如圆筒状的金属制构件时，矿脂类防腐蚀带层的宽度会变窄，但如果有纬丝存在，则纬丝会阻碍矿脂类防腐蚀带层的宽度方向的收缩，矿脂类防腐蚀带层中容易产生卷曲，但如果没有纬丝则不易产生卷曲。因此，如果没有纬丝，则矿脂类防腐蚀带层容易追随金属制构件的形状，在金属制构件上形成的矿脂类防腐蚀带层与其他层之间不易产生缝隙。因此，从提高防蚀性能的观点出发，作为前述无纺布，优选没有进行利用纬丝的加强的无纺布。In addition, as the nonwoven fabric reinforced with reinforcing yarns, a nonwoven fabric not reinforced in the width direction is more preferable, in other words, a nonwoven fabric not reinforced with weft yarns is preferable. When the petrolatum-based anti-corrosion tape layer is wound around a cylindrical metal member, the width of the petrolatum-based anti-corrosion tape layer becomes narrow, but if there is a weft thread, the weft thread will hinder the petrolatum resin. The shrinkage in the width direction of the anti-corrosion tape layer tends to cause curling in the petrolatum-based anti-corrosion tape layer, but it is difficult to cause curling if there is no weft. Therefore, if there is no weft, the petrolatum-based anti-corrosion tape layer tends to follow the shape of the metal member, and gaps are less likely to occur between the petrolatum-based anti-corrosion tape layer and other layers formed on the metal member. Therefore, from the viewpoint of improving the anti-corrosion performance, as the non-woven fabric, a non-woven fabric that is not reinforced by a weft is preferable.
另外，前述基材的单位面积质量优选为30～500g/m
2，更优选为40～400g/m
2，进一步优选为50～300g/m
2。本实施方式的矿脂类防腐蚀带层的前述基材的单位面积质量为30g/m
2以上，从而具有质地容易均匀化的优点。另外，本实施方式的矿脂类防腐蚀带层的前述基材的单位面积质量为500g/m
2以下，从而矿脂类防腐蚀带层不会变得过硬，在将矿脂类防腐蚀带层卷绕于施工场所时具有处理性良好的优点。
Moreover, the basis mass of the said base material becomes like this. Preferably it is 30-500 g/ m2 , More preferably, it is 40-400 g /m2, More preferably, it is 50-300 g/ m2 . The mass per unit area of the base material of the petrolatum-based anti-corrosion tape layer of the present embodiment is 30 g/m 2 or more, and has an advantage that the texture can be easily uniformized. In addition, the mass per unit area of the base material of the petrolatum-based anti-corrosion tape layer of the present embodiment is 500 g/m 2 or less, so that the petrolatum-based anti-corrosion tape layer does not become too hard. The layer has the advantage of good handleability when it is wound around the construction site.
前述矿脂类防腐蚀带层的浸渍于前述基材中的前述防蚀组合物的量优选为300～5000g/m
2、更优选为400～4000g/m
2、进一步优选为500～3000g/m
2。前述矿脂类防腐蚀带层的浸渍于前述基材中的前述防蚀组合物的量为300g/m
2以上，从而具有能够提高防蚀性能的优点。另外，前述矿脂类防腐蚀带层的浸渍于前述基材中的前述防蚀组合物的量为5000g/m
2以下，从而矿 脂类防腐蚀带层不会变得过硬，在将矿脂类防腐蚀带层卷绕于施工场所时具有处理性良好的优点。
The amount of the anticorrosion composition impregnated in the base material of the petrolatum-based anticorrosion tape layer is preferably 300 to 5000 g/m 2 , more preferably 400 to 4000 g/m 2 , still more preferably 500 to 3000 g/m 2 . The amount of the anti-corrosion composition impregnated in the base material of the petrolatum-based anti-corrosion tape layer is 300 g/m 2 or more, and there is an advantage that the anti-corrosion performance can be improved. In addition, the amount of the anti-corrosion composition impregnated in the base material of the petrolatum-based anti-corrosion tape layer is 5000 g/m 2 or less, so that the petrolatum-based anti-corrosion tape layer does not become too hard, and the petrolatum anti-corrosion tape layer does not become too hard. The anti-corrosion tape layer has the advantage of good handling when it is wound in the construction site.
需要说明的是，“浸渍于前述基材中的前述防蚀组合物的量”是指：浸渍于基材整体中的防蚀组合物相对于片状基材的一个面的面积的量。In addition, "amount of the said anti-corrosion composition immersed in the said base material" means the quantity with respect to the area of one surface of a sheet-like base material of the anti-corrosion composition immersed in the whole base material.
作为防蚀组合物，优选包括选自由基油(A1)、无机填料(A2)、防锈剂(A3)、着色剂(A4)和耐温向上材(A5)组成的组中的至少一种。The anticorrosion composition preferably includes at least one selected from the group consisting of a radical oil (A1), an inorganic filler (A2), a rust inhibitor (A3), a colorant (A4) and a temperature-resistant upper material (A5). .
作为基油(A1)，例如可列举出：矿脂。As a base oil (A1), petrolatum is mentioned, for example.
作为无机填料(A2)，例如可以列举出：滑石粉、氢氧化铝、二氧化硅、粘土、碳酸钙、云母、氢氧化镁、金属粉等本领域中通常的各种无机填料。关于这样的无机填料，可以通过常规方法使用现有公知的无机填料。Examples of the inorganic filler (A2) include various inorganic fillers commonly used in this field, such as talc, aluminum hydroxide, silica, clay, calcium carbonate, mica, magnesium hydroxide, and metal powder. As such an inorganic filler, conventionally well-known inorganic fillers can be used by a conventional method.
在一些优选的实施方式中，相对于基油(A1)100质量份，上述无机填料(A2)的含量为50～120质量份。从改善防腐蚀结构体的强度的观点出发，上述无机填料(A2)的含量优选为60质量份以上。从改善防腐蚀结构体的密着性的观点出发，上述无机填料(A2)的含量优选为110质量份以下，更优选为100质量份以下。In some preferred embodiments, the content of the inorganic filler (A2) is 50 to 120 parts by mass relative to 100 parts by mass of the base oil (A1). From the viewpoint of improving the strength of the anticorrosion structure, the content of the inorganic filler (A2) is preferably 60 parts by mass or more. The content of the inorganic filler (A2) is preferably 110 parts by mass or less, and more preferably 100 parts by mass or less, from the viewpoint of improving the adhesion of the anti-corrosion structure.
作为防锈剂(A3)，例如可列举出：无机系防锈剂、有机系防锈剂。这些防锈剂可以单独使用一种或组合使用两种以上。As a rust inhibitor (A3), an inorganic type rust inhibitor and an organic type rust inhibitor are mentioned, for example. These rust inhibitors can be used individually by 1 type or in combination of 2 or more types.
作为无机系防锈剂，例如可列举出铬酸盐、亚硝酸盐、硅酸盐、多磷酸盐等。As an inorganic type rust inhibitor, a chromate, a nitrite, a silicate, a polyphosphate etc. are mentioned, for example.
作为有机系防锈剂，例如可列举出单宁酸、羧酸(油酸、二聚酸、环烷酸等)、羧酸金属皂(羊毛脂Ca、环烷酸Zn、氧化蜡Ca、氧化蜡Ba等)、磺酸盐(Na磺酸盐、Ca磺酸盐、Ba磺酸盐等)、胺盐、酯(高级脂肪酸与甘油反应而得到的酯、山梨糖醇酐单异硬脂酯、山梨糖醇酐单油酸酯等)等。Examples of the organic rust inhibitor include tannic acid, carboxylic acid (oleic acid, dimer acid, naphthenic acid, etc.), carboxylic acid metal soap (lanolin Ca, naphthenic acid Zn, oxidized wax Ca, oxidized wax, etc.) Waxes Ba, etc.), sulfonates (Na sulfonate, Ca sulfonate, Ba sulfonate, etc.), amine salts, esters (esters obtained by reacting higher fatty acids with glycerin, sorbitan monoisostearyl esters) , sorbitan monooleate, etc.) and so on.
作为前述单宁酸，优选来源于五倍子的单宁酸。As said tannic acid, the tannic acid derived from gallnut is preferable.
在一些优选的实施方式中，相对于基油(A1)100质量份，上述防锈剂(A3)的含量为0.5～10质量份，优选为0.5～5质量份。当防锈剂的含量落入上述范围内时，能够进一步提高防腐蚀结构体的防腐蚀性能。In some preferred embodiments, the content of the aforementioned rust inhibitor (A3) is 0.5 to 10 parts by mass, preferably 0.5 to 5 parts by mass, relative to 100 parts by mass of the base oil (A1). When the content of the rust inhibitor falls within the above range, the anticorrosion performance of the anticorrosion structure can be further improved.
作为着色剂(A4)，例如可列举出：黑铅、二氧化钛、氧化锌、石墨、炭黑、氧化铁等。这些之中，优选为氧化铁。这些着色剂可以单独使用或者两种以上组合使用。As a coloring agent (A4), black lead, titanium dioxide, zinc oxide, graphite, carbon black, iron oxide, etc. are mentioned, for example. Among these, iron oxide is preferable. These colorants may be used alone or in combination of two or more.
在一些优选的实施方式中，相对于基油(A1)100质量份，上述着色剂(A4)的含量为0.5～5质量份，优选为0.5～2质量份。In some preferred embodiments, the content of the colorant (A4) is 0.5 to 5 parts by mass, preferably 0.5 to 2 parts by mass, relative to 100 parts by mass of the base oil (A1).
作为耐温向上材(A5)，例如可列举出：有机膨润土、结晶蜡等。这些耐温向上材可以单独使用一种或组合使用两种以上。As a temperature resistant upper material (A5), an organobentonite, a crystal wax, etc. are mentioned, for example. These temperature-resistant upper materials may be used alone or in combination of two or more.
有机膨润土是一种无机矿物/有机铵复合物，其例如可通过如下制成：以膨润土为原料，利用膨润土中蒙脱石的层片状结构及其能在水或有机溶剂中溶胀分散成胶体级粘粒特性，通过离子交换技术插入有机覆盖剂而制成。Organobentonite is an inorganic mineral/organic ammonium compound, which can be made, for example, by using bentonite as a raw material, utilizing the lamellar structure of montmorillonite in bentonite and its ability to swell and disperse into a colloid in water or an organic solvent. Grade clay properties, made by inserting organic capping agents through ion exchange technology.
作为有机膨润土，可以使用市售品。作为有机膨润土的市售品，例如可列举出：浙江华特BP-186C等。As the organic bentonite, a commercial item can be used. As a commercial item of an organic bentonite, Zhejiang Huate BP-186C etc. are mentioned, for example.
在本发明中，通过包含有机膨润土，有机膨润土在基油中吸油膨润，形成凝胶，从而具有捕获或是担持油分的能力，由此能够提高油分的滴点，进而提高了防腐性能。In the present invention, by containing the organobentonite, the organobentonite absorbs oil in the base oil and swells to form a gel, thereby having the ability to capture or hold oil, thereby increasing the oil dropping point, thereby improving the anti-corrosion performance.
作为结晶蜡，指的是使用差示扫描量热分析设备(DSC)，以10℃/分的等速升温过程中出现结晶峰值的蜡。作为结晶蜡，不局限于单一种类的结晶蜡，也包括多种蜡复合使用，只要整体显示结晶性即可。The crystalline wax refers to a wax that exhibits a crystallization peak during a constant temperature increase of 10° C./min using a differential scanning calorimetry (DSC). The crystalline wax is not limited to a single type of crystalline wax, but also includes multiple types of waxes used in combination, as long as the entirety exhibits crystallinity.
在一些优选的实施方式中，结晶蜡可以包括脂肪酸酰胺系蜡和烃系蜡(碳氢蜡)。这些可以单独使用一种，或者也可以组合2种以上使用。这些之中，从有效提高油分的滴点的观点出发，优选为脂肪酸酰胺系蜡，更优选为熔点120～160℃的脂肪酸酰胺系蜡。In some preferred embodiments, the crystalline wax may include fatty acid amide-based waxes and hydrocarbon-based waxes (hydrocarbon waxes). These may be used individually by 1 type, or may be used in combination of 2 or more types. Among these, from the viewpoint of effectively raising the dropping point of the oil content, a fatty acid amide-based wax is preferable, and a fatty acid amide-based wax having a melting point of 120 to 160° C. is more preferable.
作为烃系蜡(碳氢蜡)，例如可列举出：石蜡、微晶蜡、费-托合成蜡、聚乙烯蜡、氧化聚乙烯蜡、聚丙烯蜡、氧化聚丙烯蜡等。作为烃系蜡的市售品，例如可列举出：南京天诗公司制的聚丙烯蜡(PPW-0921)等。Examples of the hydrocarbon-based wax (hydrocarbon wax) include paraffin wax, microcrystalline wax, Fischer-Tropsch wax, polyethylene wax, oxidized polyethylene wax, polypropylene wax, oxidized polypropylene wax, and the like. As a commercial item of a hydrocarbon type wax, the polypropylene wax (PPW-0921) by Nanjing Tianshi Co., Ltd. etc. is mentioned, for example.
作为脂肪酸酰胺系蜡，其可为脂肪酸和胺之间的反应产物。从有效提高油分的滴点的观点来看，优选使用具有17～50个碳原子的脂肪酸酰胺系蜡。As the fatty acid amide-based wax, it may be a reaction product between a fatty acid and an amine. From the viewpoint of effectively increasing the dropping point of the oil content, it is preferable to use a fatty acid amide-based wax having 17 to 50 carbon atoms.
作为脂肪酸酰胺系蜡的实例，例如可列举出：亚甲基双月桂酸酰胺、亚甲基双棕榈酸酰胺、亚甲基双肉豆蔻酸酰胺、亚甲基双硬脂酸酰胺、亚甲基双山萮酸酰胺、亚乙基双月桂酸酰胺、亚乙基双棕榈酸酰胺、亚乙基双肉豆蔻酸酰胺、亚乙基双硬脂酸酰胺或亚乙基双山萮酸酰胺。Examples of fatty acid amide-based waxes include, for example, methylenebislauric acid amide, methylenebispalmitic acid amide, methylenebismyristic acid amide, methylenebisstearic acid amide, methylenebis Bisbehenamide, ethylenebislauric acid amide, ethylenebispalmitic acid amide, ethylenebismyristic acid amide, ethylenebisstearic acid amide or ethylenebisbehenic acid amide.
脂肪酸酰胺系蜡可以由以往公知的方法合成而得，也可以为市售品购入。The fatty acid amide-based wax may be synthesized by a conventionally known method, or may be purchased as a commercial item.
在本发明中，通过包含结晶蜡，在加热到熔点以上在缓慢冷却时，可以在基油中形成微结晶，并形成安定的立体网状结构，从而可以起到担持油分的能力，由此能够提高油分的滴点，进而提高了防腐性能。In the present invention, when the crystalline wax is contained in the base oil, when it is heated to a melting point or higher and slowly cooled, microcrystals can be formed in the base oil, and a stable three-dimensional network structure can be formed. Increase the oil drop point, thereby improving the anti-corrosion performance.
在一些优选的实施方式中，从提高耐温流下温度的观点出发，结晶蜡的熔点优选120℃以上，更优选为130℃以上。从加工容易的观点出发，结晶蜡的熔点优选160℃以下，更优选为150℃以下。In some preferred embodiments, the melting point of the crystalline wax is preferably 120°C or higher, more preferably 130°C or higher, from the viewpoint of increasing the temperature under temperature-resistant flow. From the viewpoint of ease of processing, the melting point of the crystalline wax is preferably 160°C or lower, and more preferably 150°C or lower.
在一些优选的实施方式中，相对于基油(A1)100质量份，耐温向上材(A5)的含量为10～40质量份，优选为12～35质量份。当耐温向上材的含量落入上述范围内时，能够提高油分的滴点，可以有效改善油分的滴落，从而具有优异的防腐性能。另外，通过使耐温向上材的含量在上述范围内，还能够获得优异的接着性，可以有效地附着在被覆体的表面。In some preferred embodiments, the content of the temperature resistant upper material (A5) is 10-40 parts by mass, preferably 12-35 parts by mass, relative to 100 parts by mass of the base oil (A1). When the content of the temperature-resistant upper material falls within the above range, the dropping point of the oil can be increased, the dripping of the oil can be effectively improved, and thus it has excellent anti-corrosion performance. In addition, by making the content of the temperature-resistant upper material within the above-mentioned range, excellent adhesiveness can also be obtained, and it can be effectively adhered to the surface of the covering body.
当耐温向上材的含量小于10质量份时，容易导致耐热性不足，不易兼顾优异的耐热性和接着性。当耐温向上材的含量大于40质量份时，容易导致施工性和接着性劣化，不利于工业施工。When the content of the temperature-resistant upper material is less than 10 parts by mass, insufficient heat resistance is likely to occur, and it is difficult to achieve both excellent heat resistance and adhesiveness. When the content of the temperature-resistant upper material is more than 40 parts by mass, it is easy to cause deterioration of workability and adhesion, which is unfavorable for industrial construction.
在一些优选的实施方式中，在单独使用有机膨润土的情况下，从提高耐温性的观点出发，相对于基油100质量份，有机膨润土的添加量优选为10质量份以上。从施工缠绕容易的观点出发，有机膨润土的添加量优选为25质量份以下，更优选为15质量份以下。In some preferred embodiments, when the organobentonite is used alone, from the viewpoint of improving the temperature resistance, the amount of the organobentonite added is preferably 10 parts by mass or more relative to 100 parts by mass of the base oil. From the viewpoint of ease of construction winding, the addition amount of the organobentonite is preferably 25 parts by mass or less, and more preferably 15 parts by mass or less.
在一些优选的实施方式中，在单独使用结晶蜡的情况下，从提高耐温性的观点出发，相对于基油100质量份，结晶蜡的添加量优选为10质量份以上，更优选为15质量份以上，进一步优选为20质量份以上。从施工缠绕容易的观点出发，结晶蜡的添加量优选为40质量份以下，更优选为35质量份以下，进 一步优选为30质量份以下。In some preferred embodiments, when crystalline wax is used alone, from the viewpoint of improving temperature resistance, the amount of crystalline wax added is preferably 10 parts by mass or more, more preferably 15 parts by mass relative to 100 parts by mass of the base oil part by mass or more, more preferably 20 parts by mass or more. From the viewpoint of ease of construction winding, the addition amount of the crystalline wax is preferably 40 parts by mass or less, more preferably 35 parts by mass or less, and still more preferably 30 parts by mass or less.
在一些优选的实施方式中，在同时使用有机膨润土和结晶蜡的情况下，从提高耐热性和施工性的观点出发，相对于基油100质量份，有机膨润土的添加量优选为5～20份，更优选为5～15份，结晶蜡的添加量优选为5～20份。In some preferred embodiments, when using organobentonite and crystalline wax together, from the viewpoint of improving heat resistance and workability, the amount of organobentonite added is preferably 5 to 20 parts by mass relative to 100 parts by mass of the base oil. parts, more preferably 5 to 15 parts, and the addition amount of the crystalline wax is preferably 5 to 20 parts.
除了上述各成分以外，防蚀组合物可以在不损害本发明的效果的范围内根据需要含有表面活性剂、抗氧化剂、防老剂等防腐蚀领域中通常的各种添加剂。关于这样的各种添加剂，可以通过常规方法使用现有公知的添加剂。In addition to the above-mentioned components, the anti-corrosion composition may contain, as necessary, various additives commonly used in the anti-corrosion field, such as surfactants, antioxidants, and antioxidants, within a range that does not impair the effects of the present invention. As such various additives, conventionally known additives can be used by conventional methods.
在一些优选的实施方式中，矿脂类防腐蚀带层的耐温流下温度在90℃以上。从更好地抑制油分滴落效果的观点出发，矿脂类防腐蚀带层的耐温流下温度优选为100～160℃，更优选为110～150℃，进一步优选为120～140℃。如果矿脂类防腐蚀带层的耐温流下温度小于90℃，则耐热性差，容易发生油分脱离和滴落的问题，从而造成防腐性能劣化。矿脂类防腐蚀带层的耐温流下温度通过本说明书的实施例中记载的方法测定。In some preferred embodiments, the temperature of the petrolatum anti-corrosion tape layer under temperature flow is above 90°C. From the viewpoint of better suppressing the effect of oil dripping, the temperature-resistant flowing temperature of the petrolatum-based anti-corrosion tape layer is preferably 100 to 160°C, more preferably 110 to 150°C, and further preferably 120 to 140°C. If the temperature of the petrolatum-based anti-corrosion tape layer is less than 90° C., the heat resistance is poor, and the problems of oil separation and dripping are likely to occur, resulting in deterioration of anti-corrosion performance. The temperature-resistant under-flow temperature of the petrolatum-based anti-corrosion tape layer was measured by the method described in the examples of this specification.
在一些优选的实施方式中，矿脂类防腐蚀带层的剥离强度为600N/m以上。从提高粘结性的观点出发，矿脂类防腐蚀带层的剥离强度优选为800N/m以上。从施工缠绕容易的观点出发，矿脂类防腐蚀带层的剥离强度优选为2000N/m以下，更优选为1800N/m以下，进一步优选为1600N/m以下。在一些优选的实施方式中，矿脂类防腐蚀带层的剥离强度优选为800～1600N/m。In some preferred embodiments, the peel strength of the petrolatum-based anti-corrosion tape layer is 600 N/m or more. From the viewpoint of improving adhesion, the peel strength of the petrolatum-based anticorrosion tape layer is preferably 800 N/m or more. The peel strength of the petrolatum-based anti-corrosion tape layer is preferably 2,000 N/m or less, more preferably 1,800 N/m or less, and further preferably 1,600 N/m or less, from the viewpoint of ease of construction and winding. In some preferred embodiments, the peel strength of the petrolatum anti-corrosion tape layer is preferably 800-1600 N/m.
如果矿脂类防腐蚀带层的剥离强度小于600N/m，则粘合性差，防腐蚀结构体容易从被粘体上脱离，存在难以施工的问题。如果矿脂类防腐蚀带层的剥离强度大于2000N/m，容易增大施工缠绕难度，不利于施工。矿脂类防腐蚀带层的剥离强度GB/T32119-2015附录H测定。If the peel strength of the petrolatum-based anti-corrosion tape layer is less than 600 N/m, the adhesiveness is poor, the anti-corrosion structure is easily detached from the adherend, and there is a problem that construction is difficult. If the peel strength of the petrolatum anti-corrosion tape layer is greater than 2000N/m, it is easy to increase the difficulty of construction winding, which is not conducive to construction. Peel strength of petrolatum anti-corrosion tape layer GB/T32119-2015 Appendix H Determination.
在一些优选的实施方式中，矿脂类防腐蚀带层的厚度优选为0.5～4mm，更优选为0.9～2.5mm。通过使矿脂类防腐蚀带层的厚度在上述范围内，从而具有能够提高防腐防蚀性能的优点，另外还具有抑制矿脂类防腐蚀带层在卷绕时产生浮起的优点。In some preferred embodiments, the thickness of the petrolatum anti-corrosion tape layer is preferably 0.5-4 mm, more preferably 0.9-2.5 mm. By setting the thickness of the petrolatum-based anti-corrosion tape layer within the above range, there is an advantage that the anti-corrosion and anti-corrosion performance can be improved, and there is an advantage of suppressing the petrolatum-based anti-corrosion tape layer from floating during winding.
[底涂层][undercoat layer]
底涂层1形成在比前述矿脂类防腐蚀带层2更靠近被覆体(如金属制构件)侧，与被覆体(如金属制构件)的表面接触。防腐蚀结构体通过具备底涂层，The primer layer 1 is formed on the side of the coating body (eg, metal member) rather than the petrolatum-based anticorrosion tape layer 2, and is in contact with the surface of the coating body (eg, metal member). The anti-corrosion structure is provided with a primer coating,
具有容易与被覆体(如金属制构件)密合、防腐蚀性能变优异的优点，即使用于室外环境中，也能够具有优异的防腐蚀性能。It has the advantages that it is easy to adhere to a coating body (eg, a metal member) and has excellent corrosion resistance, and even if it is used in an outdoor environment, it can have excellent corrosion resistance.
在本发明中，底涂层的耐温流下温度为70℃以上。当底涂层为矿脂类底涂时，从高温环境下抑制油分滴落效果的观点出发，底涂层的耐温流下温度优选为80℃以上。从加工容易的观点出发，底涂层的耐温流下温度优选为110℃以下，更优选为90℃以下。如果底涂层的耐温流下温度小于70℃，则耐热性差，容易发生油分脱离和滴落的问题，从而造成防腐性能劣化。底涂层的耐温流下温度通过本说明书的实施例中记载的方法测定。In the present invention, the temperature-resistant flow under temperature of the primer layer is 70°C or higher. When the undercoat layer is a petrolatum-based primer, the temperature of the undercoat layer under temperature resistance is preferably 80° C. or higher from the viewpoint of the effect of suppressing oil dripping in a high temperature environment. From the viewpoint of easiness of processing, the temperature of the undercoat layer is preferably 110°C or lower, and more preferably 90°C or lower. If the temperature under temperature-resistant flow of the primer layer is less than 70° C., the heat resistance is poor, and the problems of oil separation and dripping are likely to occur, resulting in deterioration of the anti-corrosion performance. The temperature under temperature-resistant flow of the undercoat layer is measured by the method described in the examples of this specification.
在一些优选的实施方式中，底涂层可以通过在被覆体(如金属制构件)的表面涂布底涂组合物来形成。即，底涂层可以由底涂组合物形成。In some preferred embodiments, the primer layer can be formed by coating the primer composition on the surface of a substrate (eg, a metal member). That is, the primer layer may be formed from the primer composition.
作为底涂组合物，只要具有上述耐温流下温度，可以使用任意适当的底涂组合物形成底涂层。As the primer composition, any appropriate primer composition can be used to form the primer layer as long as it has the above-mentioned temperature-resistant flow down temperature.
在一些优选的实施方式中，底涂组合物包含矿脂类底涂组合物或氧化聚合型底涂组合物。In some preferred embodiments, the primer composition comprises a petrolatum based primer composition or an oxidatively polymerized primer composition.
(矿脂类底涂组合物)(Petroleum based primer composition)
在一些优选的实施方式中，矿脂类底涂组合物优选包括选自由基油(B1)、防锈剂(B2)、补强填充材料(B3)、软化剂(B4)和耐温向上材(B5)组成的组中的至少一种。优选地，矿脂类底涂组合物包括耐温向上材(B5)。In some preferred embodiments, the petrolatum based primer composition preferably includes a free radical oil (B1), a rust inhibitor (B2), a reinforcing filler (B3), a softener (B4) and a temperature resistant upper material (B5) at least one of the group consisting of. Preferably, the petrolatum based primer composition includes a temperature resistant upper material (B5).
作为基油(B1)，例如可列举出：矿脂、氧化矿脂、凡士林等。这些基油可以单独使用一种或组合使用两种以上。As a base oil (B1), petrolatum, oxidized petrolatum, petrolatum, etc. are mentioned, for example. These base oils may be used alone or in combination of two or more.
作为防锈剂(B2)，可列举出无机系防锈剂和有机系防锈剂。这些防锈剂可以单独使用一种或组合使用两种以上。As a rust inhibitor (B2), an inorganic type rust inhibitor and an organic type rust inhibitor are mentioned. These rust inhibitors can be used individually by 1 type or in combination of 2 or more types.
作为无机系防锈剂，例如可列举出铬酸盐、亚硝酸盐、硅酸盐、磷酸盐、多磷酸盐等。As an inorganic type rust inhibitor, a chromate, a nitrite, a silicate, a phosphate, a polyphosphate etc. are mentioned, for example.
作为有机系防锈剂，例如可列举出单宁酸、羧酸(油酸、二聚酸、环烷 酸等)、羧酸金属皂(羊毛脂Ca、环烷酸Zn、氧化蜡Ca、氧化蜡Ba等)、磺酸盐(Na磺酸盐、Ca磺酸盐、Ba磺酸盐等)、胺盐、酯(高级脂肪酸与甘油反应而得到的酯、山梨糖醇酐单异硬脂酯、山梨糖醇酐单油酸酯等)等。Examples of the organic rust inhibitor include tannic acid, carboxylic acid (oleic acid, dimer acid, naphthenic acid, etc.), carboxylic acid metal soap (lanolin Ca, naphthenic acid Zn, oxidized wax Ca, oxidized wax, etc.) Waxes Ba, etc.), sulfonates (Na sulfonate, Ca sulfonate, Ba sulfonate, etc.), amine salts, esters (esters obtained by reacting higher fatty acids with glycerin, sorbitan monoisostearyl esters) , sorbitan monooleate, etc.) and so on.
作为前述单宁酸，优选来源于五倍子的单宁酸。As said tannic acid, the tannic acid derived from gallnut is preferable.
在一些优选的实施方式中，相对于基油(B1)100质量份，上述防锈剂(B2)的含量优选为5～40质量份，更优选为5～20质量份。当防锈剂的含量落入上述范围内时，能够进一步提高防腐蚀结构体的防腐蚀性能。In some preferred embodiments, the content of the rust inhibitor (B2) is preferably 5 to 40 parts by mass, more preferably 5 to 20 parts by mass, relative to 100 parts by mass of the base oil (B1). When the content of the rust inhibitor falls within the above range, the anticorrosion performance of the anticorrosion structure can be further improved.
作为补强填充材料(B3)，例如可列举出：滑石粉或滑石颗粒、矿物云母、二氧化硅、粘土、碳酸钙、云母状氧化铁、氢氧化铝、氢氧化镁等。这些补强填充材料可以单独使用一种或组合使用两种以上。Examples of the reinforcing filler (B3) include talc powder or talc particles, mineral mica, silica, clay, calcium carbonate, mica-like iron oxide, aluminum hydroxide, magnesium hydroxide, and the like. These reinforcing fillers may be used alone or in combination of two or more.
上述补强填充材料中，滑石粉或滑石颗粒、矿物云母加强底涂组合物的效果优异，并且对于赋予底涂组合物以保形性而言更有效，因此更优选。Among the above-mentioned reinforcing fillers, talc powder, talc particles, and mineral mica are more preferable because they are excellent in reinforcing the primer composition and more effective in imparting shape retention to the primer composition.
在一些优选的实施方式中，滑石粉或滑石颗粒、矿物云母优选以在补强填充材料中所占的比例为90质量％以上、优选95质量％以上、更优选100质量％的方式含有在底涂组合物中。In some preferred embodiments, talc, talc particles, and mineral mica are preferably contained in the bottom of the reinforcing filler in a proportion of 90% by mass or more, preferably 95% by mass or more, and more preferably 100% by mass. in the coating composition.
从施工性优异的角度出发，滑石颗粒通过激光衍射式粒度分布测定装置求出的中值粒径优选为1μm以上且100μm以下，更优选为1μm以上且50μm以下，进一步优选为10μm以上且40μm以下。From the viewpoint of excellent workability, the median particle diameter of the talc particles determined by a laser diffraction particle size distribution analyzer is preferably 1 μm or more and 100 μm or less, more preferably 1 μm or more and 50 μm or less, and further preferably 10 μm or more and 40 μm or less .
作为滑石颗粒，在用75μm筛网筛分时99质量％以上通过筛子(筛余物1质量％以下)的滑石颗粒是适宜的。As the talc particles, when sieved with a 75 μm mesh, 99% by mass or more of talc particles pass through a sieve (1 mass% or less of a sieve residue) is suitable.
在一些优选的实施方式中，相对于基油(B1)100质量份，补强填充材料(B3)的含量优选为30～80质量份，更优选为40～70质量份。当补强填充材料的含量落入上述范围内时，能够进一步提高防腐蚀结构体的强度。In some preferred embodiments, the content of the reinforcing filler (B3) is preferably 30-80 parts by mass, more preferably 40-70 parts by mass, relative to 100 parts by mass of the base oil (B1). When the content of the reinforcing filler material falls within the above range, the strength of the anticorrosion structure can be further improved.
作为软化剂(B4)，可列举出分子量比前述基油低的有机化合物，例如可列举出矿物油(石蜡油)、凡士林(白凡士林等)等。As softener (B4), the organic compound whose molecular weight is lower than the said base oil is mentioned, for example, mineral oil (paraffin oil), petrolatum (white petrolatum, etc.) etc. are mentioned.
在一些优选的实施方式中，相对于基油(B1)100质量份，软化剂(B4)In some preferred embodiments, with respect to 100 parts by mass of the base oil (B1), the softener (B4)
的含量优选为20～80质量份，更优选为20～60质量份。当软化剂的含量落入上 述范围内时，能够进一步提高防腐蚀结构体的防腐蚀性，并且由底涂组合物形成的底涂层的施工性也优异。The content is preferably 20 to 80 parts by mass, more preferably 20 to 60 parts by mass. When the content of the softening agent falls within the above-mentioned range, the corrosion resistance of the anti-corrosion structure can be further improved, and the workability of the primer layer formed from the primer composition is also excellent.
作为耐温向上材(B5)，例如可列举出：有机膨润土、结晶蜡等。这些耐温向上材可以单独使用一种或组合使用两种以上。As a temperature resistant upper material (B5), an organobentonite, a crystalline wax, etc. are mentioned, for example. These temperature-resistant upper materials may be used alone or in combination of two or more.
有机膨润土是一种无机矿物/有机铵复合物，其例如可通过如下制成：以膨润土为原料，利用膨润土中蒙脱石的层片状结构及其能在水或有机溶剂中溶胀分散成胶体级粘粒特性，通过离子交换技术插入有机覆盖剂而制成。Organobentonite is an inorganic mineral/organic ammonium compound, which can be made, for example, by using bentonite as a raw material, utilizing the lamellar structure of montmorillonite in bentonite and its ability to swell and disperse into a colloid in water or an organic solvent. Grade clay properties, made by inserting organic capping agents through ion exchange technology.
作为有机膨润土，可以使用市售品。作为有机膨润土的市售品，例如可列举出：浙江华特BP-186C等。As the organic bentonite, a commercial item can be used. As a commercial item of an organic bentonite, Zhejiang Huate BP-186C etc. are mentioned, for example.
在本发明的底涂组合物中，通过包含有机膨润土，有机膨润土在基油中吸油膨润，形成凝胶，从而具有捕获或是担持油分的能力，由此能够提高油分的滴点，进而提高了防腐蚀性能。In the primer composition of the present invention, by containing the organobentonite, the organobentonite absorbs oil in the base oil and swells to form a gel, thereby having the ability to capture or support the oil, thereby increasing the drop point of the oil, thereby improving the anti-corrosion performance.
作为结晶蜡，指的是使用差示扫描量热分析设备(DSC)，以10℃/分的等速升温过程中出现结晶峰值的蜡。作为结晶蜡，不局限于单一种类的结晶蜡，也包括多种蜡复合使用，只要整体显示结晶性即可。The crystalline wax refers to a wax that exhibits a crystallization peak during a constant temperature increase of 10° C./min using a differential scanning calorimetry (DSC). The crystalline wax is not limited to a single type of crystalline wax, but also includes multiple types of waxes used in combination, as long as the entirety exhibits crystallinity.
在一些优选的实施方式中，结晶蜡可以包括脂肪酸酰胺系蜡和烃系蜡(碳氢蜡)。这些可以单独使用一种，或者也可以组合2种以上使用。这些之中，从有效提高油分的滴点的观点出发，优选为脂肪酸酰胺系蜡，更优选为熔点120～160℃的脂肪酸酰胺系蜡。In some preferred embodiments, the crystalline wax may include fatty acid amide-based waxes and hydrocarbon-based waxes (hydrocarbon waxes). These may be used individually by 1 type, or may be used in combination of 2 or more types. Among these, from the viewpoint of effectively raising the dropping point of the oil content, a fatty acid amide-based wax is preferable, and a fatty acid amide-based wax having a melting point of 120 to 160° C. is more preferable.
作为烃系蜡(碳氢蜡)，例如可列举出：石蜡、微晶蜡、费-托合成蜡、聚乙烯蜡、氧化聚乙烯蜡、聚丙烯蜡、氧化聚丙烯蜡等。作为烃系蜡的市售品，例如可列举出：南京天诗公司制的聚丙烯蜡(PPW-0921)等。Examples of the hydrocarbon-based wax (hydrocarbon wax) include paraffin wax, microcrystalline wax, Fischer-Tropsch wax, polyethylene wax, oxidized polyethylene wax, polypropylene wax, oxidized polypropylene wax, and the like. As a commercial item of a hydrocarbon type wax, the polypropylene wax (PPW-0921) by Nanjing Tianshi Co., Ltd. etc. is mentioned, for example.
作为脂肪酸酰胺系蜡，其可为脂肪酸和胺之间的反应产物。从有效提高油分的滴点的观点来看，优选使用具有17～50个碳原子的脂肪酸酰胺系蜡。As the fatty acid amide-based wax, it may be a reaction product between a fatty acid and an amine. From the viewpoint of effectively increasing the dropping point of the oil content, it is preferable to use a fatty acid amide-based wax having 17 to 50 carbon atoms.
作为脂肪酸酰胺系蜡的实例，例如可列举出：亚甲基双月桂酸酰胺、亚甲基双棕榈酸酰胺、亚甲基双肉豆蔻酸酰胺、亚甲基双硬脂酸酰胺、亚甲基双山萮酸酰胺、亚乙基双月桂酸酰胺、亚乙基双棕榈酸酰胺、亚乙基双肉豆 蔻酸酰胺、亚乙基双硬脂酸酰胺或亚乙基双山萮酸酰胺。Examples of fatty acid amide-based waxes include, for example, methylenebislauric acid amide, methylenebispalmitic acid amide, methylenebismyristic acid amide, methylenebisstearic acid amide, methylenebis Bisbehenamide, ethylenebislauric acid amide, ethylenebispalmitic acid amide, ethylenebismyristic acid amide, ethylenebisstearic acid amide or ethylenebisbehenic acid amide.
脂肪酸酰胺系蜡可以由以往公知的方法合成而得，也可以为市售品购入。The fatty acid amide-based wax may be synthesized by a conventionally known method, or may be purchased as a commercial item.
在本发明的底涂组合物中，通过包含结晶蜡，在加热到熔点以上在缓慢冷却时，可以在基油中形成微结晶，并形成安定的立体网状结构，从而可以起到担持油分的能力，由此能够提高油分的滴点，进而提高了防腐蚀性能。In the primer composition of the present invention, by including a crystalline wax, when heated to a melting point or higher and slowly cooled, microcrystals can be formed in the base oil, and a stable three-dimensional network structure can be formed, so that it can play a role of supporting oil. Therefore, the dropping point of the oil can be increased, thereby improving the anti-corrosion performance.
在一些优选的实施方式中，从提高耐温流下温度的观点出发，结晶蜡的熔点优选120℃以上，更优选为130℃以上。从加工容易的观点出发，结晶蜡的熔点优选160℃以下，更优选为150℃以下。In some preferred embodiments, the melting point of the crystalline wax is preferably 120°C or higher, more preferably 130°C or higher, from the viewpoint of increasing the temperature under temperature-resistant flow. From the viewpoint of ease of processing, the melting point of the crystalline wax is preferably 160°C or lower, and more preferably 150°C or lower.
在一些优选的实施方式中，相对于基油(B1)100质量份，耐温向上材(B5)的含量优选为5～40质量份，优选为10～36质量份。当耐温向上材的含量落入上述范围内时，能够提高油分的滴点，可以有效改善油分的滴落，从而具有优异的防腐蚀性能。另外，通过使耐温向上材的含量在上述范围内，还能够获得优异的接着性，可以有效地附着在被覆体(如金属制构件)等表面。In some preferred embodiments, the content of the temperature resistant upper material (B5) is preferably 5-40 parts by mass, preferably 10-36 parts by mass, relative to 100 parts by mass of the base oil (B1). When the content of the temperature-resistant upper material falls within the above range, the dropping point of the oil can be increased, the dripping of the oil can be effectively improved, and thus it has excellent anti-corrosion performance. In addition, by making the content of the temperature-resistant upper material within the above-mentioned range, excellent adhesiveness can also be obtained, and it can be effectively adhered to the surface of a coating body (eg, a metal member) or the like.
当耐温向上材的含量小于5质量份时，容易导致耐热性不足，不易兼顾优异的耐热性和接着性。当耐温向上材的含量大于40质量份时，容易导致施工性和接着性劣化，不利于工业施工。When the content of the temperature-resistant upper material is less than 5 parts by mass, insufficient heat resistance is likely to occur, and it is difficult to achieve both excellent heat resistance and adhesiveness. When the content of the temperature-resistant upper material is more than 40 parts by mass, it is easy to cause deterioration of workability and adhesion, which is unfavorable for industrial construction.
除了上述各成分以外，上述矿脂类底涂组合物可以在不损害本发明的效果的范围内根据需要含有粘度调节剂、偶联剂、表面活性剂、抗氧化剂、防老剂、防霉剂、防虫剂、防鼠剂、抗菌剂等防腐蚀领域中通常的各种添加剂。关于这样的各种添加剂，可以通过常规方法使用现有公知的添加剂。In addition to the above-mentioned components, the above-mentioned petrolatum-based primer composition may contain, as necessary, a viscosity modifier, a coupling agent, a surfactant, an antioxidant, an antiaging agent, an antifungal agent, Various additives commonly used in the field of anti-corrosion such as insect repellents, rodent repellants, and antibacterial agents. As such various additives, conventionally known additives can be used by conventional methods.
(氧化聚合型底涂组合物)(oxidative polymerization type primer composition)
作为氧化聚合型底涂组合物，可以采用市售的产品，例如日东电工株式会社制造的氧化聚合性底涂XG-PN。As the oxidatively polymerizable primer composition, a commercially available product, for example, an oxidatively polymerizable primer XG-PN manufactured by Nitto Denko Co., Ltd. can be used.
[紫外线遮断层(UV遮断层)][ultraviolet rays blocking layer (UV blocking layer)]
本实施方式的防腐蚀结构体通过在矿脂类防腐带层的空气界面侧具有UV遮断层，从而能够阻挡紫外线的照射，抑制防腐蚀结构体产生损伤，其 结果，即使将防腐蚀结构体用于室外环境中，也能够具有优异的防腐性能和防腐寿命。The anti-corrosion structure of the present embodiment has a UV blocking layer on the air interface side of the petrolatum-based anti-corrosion tape layer, so that irradiation of ultraviolet rays can be blocked, and damage to the anti-corrosion structure can be suppressed. As a result, even if the anti-corrosion structure is used for In outdoor environments, it can also have excellent anti-corrosion performance and anti-corrosion life.
在一些优选的实施方式中，UV遮断层可以为防护涂料层或防护胶带。In some preferred embodiments, the UV blocking layer may be a protective coating layer or protective tape.
作为防护涂料层，例如可以是由丙烯酸涂料、聚氨酯涂料、环氧树脂涂料等形成的防护涂料层。作为防护涂料层的形成方法没有特别限定，可以通过现有公知的方法形成，例如可以采用通过将丙烯酸涂料等施加到具有剥离性的剥离衬垫表面上并使其干燥、然后剥离剥离衬垫来形成。As the protective coating layer, for example, a protective coating layer formed of an acrylic coating, a urethane coating, an epoxy coating, or the like can be used. The formation method of the protective coating layer is not particularly limited, and it can be formed by a conventionally known method. For example, it can be formed by applying an acrylic coating or the like to the surface of a release liner having releasability, drying it, and then peeling off the release liner. form.
作为上述丙烯酸涂料，可以使用市售品，例如列举出：日东电工株式会社制造的XG-T。作为聚氨酯涂料，可以使用市售品，例如列举出：上海旱龙实业有限公司制造的房屋卫士聚氨酯防水涂料。As said acrylic paint, a commercial item can be used, for example, XG-T by Nitto Denko Co., Ltd. is mentioned. As a urethane paint, a commercial item can be used, for example, the housing guard urethane waterproof paint manufactured by Shanghai Hanlong Industrial Co., Ltd. is exemplified.
上述涂料在涂布在前述矿脂类防腐带层的表面后进行干燥、固化而构成该覆膜的主体。The coating material is coated on the surface of the petrolatum-based anti-corrosion tape layer, and then dried and cured to constitute the main body of the coating film.
在一些优选的实施方式中，UV遮断层优选为防护胶带。作为该防护胶带，优选由防护层和任选的粘合剂层形成。In some preferred embodiments, the UV blocking layer is preferably a protective tape. As the protective tape, it is preferably formed of a protective layer and an optional adhesive layer.
作为形成防护层的材料，例如可列举出聚氯乙烯、聚乙烯、聚丙烯、丁基橡胶、沥青、铝膜、聚酯、聚氨酯、合成橡胶等。从施工性的观点出发，优选为聚氯乙烯、聚乙烯。As a material for forming the protective layer, for example, polyvinyl chloride, polyethylene, polypropylene, butyl rubber, asphalt, aluminum film, polyester, polyurethane, synthetic rubber and the like can be mentioned. From the viewpoint of workability, polyvinyl chloride and polyethylene are preferable.
防护层可以在表面具备粘合剂层。作为形成该粘合剂层的粘合剂，例如可列举出橡胶系粘合剂、丙烯酸系粘合剂等。The protective layer may have an adhesive layer on the surface. As a pressure-sensitive adhesive which forms this pressure-sensitive adhesive layer, a rubber-type pressure-sensitive adhesive, an acrylic pressure-sensitive adhesive, etc. are mentioned, for example.
在一些优选的实施方式中，UV遮断层由于构成防腐蚀结构体的最表面，因此防护胶带中优选还含有紫外线吸收剂。In some preferred embodiments, since the UV blocking layer constitutes the outermost surface of the anti-corrosion structure, the protective tape preferably further contains an ultraviolet absorber.
在一些优选的实施方式中，前述UV遮断层的紫外线透过率(UV透过率)优选为1％以下，更优选为0.5％以下。本实施方式的防腐蚀结构体通过使UV遮断层的UV透过率为1％以下，从而能够阻挡紫外线的照射，抑制防腐蚀结构体发生紫外线劣化，从而能够更进一步抑制被覆体(如金属制构件)的腐蚀。In some preferred embodiments, the ultraviolet transmittance (UV transmittance) of the UV blocking layer is preferably 1% or less, and more preferably 0.5% or less. The anti-corrosion structure of the present embodiment can block ultraviolet radiation by making the UV transmittance of the UV blocking layer 1% or less, thereby suppressing ultraviolet degradation of the anti-corrosion structure, and further suppressing the coating (such as metal components) corrosion.
需要说明的是，前述UV透过率中的UV(紫外线)是指300nm的波长。In addition, UV (ultraviolet) in the said UV transmittance means the wavelength of 300 nm.
在一些优选的实施方式中，UV遮断层的厚度优选为0.1～3mm，更优选为0.1～1.5mm。通过使UV遮断层的厚度在上述范围内，从而能够保护防腐蚀结构体免受外力损伤，提高施工性和防腐蚀性。In some preferred embodiments, the thickness of the UV blocking layer is preferably 0.1-3 mm, more preferably 0.1-1.5 mm. By setting the thickness of the UV shielding layer within the above-mentioned range, the anticorrosion structure can be protected from external force damage, and workability and corrosion resistance can be improved.
在一些优选的实施方式中，UV遮断层可以为1层，也可以为2层以上。In some preferred embodiments, the UV blocking layer may be one layer or two or more layers.
[防蚀胶泥层][Anti-corrosion mortar layer]
在涂覆底涂层表面上的形状不规则的凹凸部位填充防蚀胶泥层，得到平滑表面，便于贴敷和包裹矿脂类防腐蚀带层。本发明对所述防蚀胶泥的填充量没有特别限制，本领域技术人员可以根据实际使用环境、产品要求或防腐要求进行调整和选择。为了提高综合防护的效果，所述防蚀胶泥的填充方式优选为将形状不规则的凹凸部位填充为具有坡度的圆滑过渡或平滑斜面。The irregularly shaped concave and convex parts on the surface of the primer coating layer are filled with an anti-corrosion mortar layer to obtain a smooth surface, which is convenient for applying and wrapping a petrolatum anti-corrosion tape layer. The present invention does not specifically limit the filling amount of the anti-corrosion mortar, and those skilled in the art can adjust and select according to the actual use environment, product requirements or anti-corrosion requirements. In order to improve the effect of comprehensive protection, the filling method of the anti-corrosion mortar is preferably to fill the irregularly shaped uneven parts into smooth transitions or smooth slopes with slopes.
对所述填充防蚀胶泥的具体过程没有特别限制，以本领域技术人员熟知的填充此类防腐材料的常规过程即可。从提高综合防护的效果出发，所述填充防蚀胶泥的具体过程优选为：将防蚀胶泥填充在形状不规则的部位，对于螺栓、螺母等异形结构和垂直拐角，用防蚀胶泥填充出具有一定坡度的圆滑过渡，方便后续矿脂类防腐蚀带层的粘贴，并且防止雨水等的积存。The specific process of filling the anti-corrosion mortar is not particularly limited, and the conventional process of filling such anti-corrosion materials well known to those skilled in the art can be used. From the perspective of improving the effect of comprehensive protection, the specific process of filling the anti-corrosion mortar is preferably as follows: filling the irregular-shaped parts with the anti-corrosion mortar, for special-shaped structures such as bolts, nuts and vertical corners, fill the anti-corrosion mortar with anti-corrosion mortar. The smooth transition of a certain slope is convenient for the subsequent pasting of the petrolatum anti-corrosion tape layer, and prevents the accumulation of rainwater, etc.
填充用防蚀胶泥可以使用市售品，例如列举出：日东电工株式会社制造的XG-M。A commercial item can be used for the anticorrosion mortar for filling, for example, XG-M by Nitto Denko Co., Ltd. is mentioned.
<用途><Use>
这里公开的防腐蚀结构体可广泛用于各种综合环境中，例如可以用于室外、长期暴露在高温环境、有直射日光照射的场所等中。The anti-corrosion structures disclosed herein can be widely used in various general environments, such as outdoor use, long-term exposure to high temperature environments, places exposed to direct sunlight, and the like.
实施例Example
以下，通过实施例具体地对本发明进行说明，但本发明不受这些实施例的限定。实施例中的评价方法如下。另外，实施例中，只要没有特别说明，则“份”为重量基准。实施例中使用的各组分均可以商购获得。Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to these Examples. The evaluation methods in the examples are as follows. In addition, in an Example, unless otherwise indicated, "part" is a basis of weight. The components used in the examples are all commercially available.
<评价试验><Evaluation test>
(底涂层的耐温流下温度)(Temperature of the base coat under the heat-resistant flow)
根据GB/T32119-2015附录A测定。Determined according to Appendix A of GB/T32119-2015.
具体地，调节恒温干燥箱，使其保持在设定好的温度(40℃)。选取80mm×60mm×(3～5)mm的Q235钢板3块，用240#砂纸延长边方向打磨，用纱布蘸取丙酮或乙醇清洗钢管，清除表面杂物，将表面吹干。在每片实验钢板80mm×60mm的面上，距下端18mm、15mm处各描一黑线。在实验钢板划线的一面涂敷100～150um厚的底涂层试样膜。Specifically, the constant temperature drying oven was adjusted to keep it at the set temperature (40°C). Select 3 Q235 steel plates of 80mm×60mm×(3～5)mm, grind them with 240# sandpaper in the extended edge direction, use gauze dipped in acetone or ethanol to clean the steel pipe, remove the surface debris, and dry the surface. On the 80mm×60mm surface of each experimental steel plate, draw a black line at 18mm and 15mm from the lower end. A 100-150um thick base coat sample film is applied to the scribed side of the experimental steel plate.
将上述装置整体放入调节好温度的恒温干燥箱中，保持垂直，24h后观察试样膜是否流淌到基准线上。3块实验钢板的试样膜都没有流淌现象或是没有流淌至基准线上则判定为合格。否则判定为不合格，合格的话，以10℃间隔逐步提高温度重复上述实验，直到观测到试样膜流淌，试样膜发生流淌的前一个温度点记录为耐温流下温度。Put the above-mentioned device as a whole into a constant temperature drying oven with a good temperature, keep it vertical, and observe whether the sample film flows to the reference line after 24 hours. If the sample films of the three experimental steel plates did not flow or did not flow to the reference line, it was judged to be qualified. Otherwise, it is judged to be unqualified. If it is qualified, the above experiment is repeated by gradually increasing the temperature at 10°C intervals until the sample film is observed to flow, and the temperature point before the flow of the sample film is recorded as the temperature under temperature resistance.
(矿脂类防腐蚀带层的耐温流下温度)(The temperature of the petrolatum anti-corrosion tape layer under temperature flow)
根据GB/T30651测定。Determined according to GB/T30651.
具体地，将由各实施例及各比较例的矿脂类防腐蚀带层切取500mm×50mm作为试样。调节恒温干燥箱，使其保持在设定好的温度。用纱布蘸取丙酮或乙醇清洗钢管，清除表面杂物，将表面吹干。在钢管中间缠绕试样两圈，去除多余试样，将表面抚平。将缠好试样的钢管置于支架上，并在其下方放置托盘。将上述装置整体放入调节好温度的恒温干燥箱中，保持水平，24h后观察托盘中有无复合物滴落，无滴落的话，以10℃间隔逐步提高温度重复上述实验，直到观测到复合物滴落，复合物发生滴落温度的前一个温度点记录为耐温流下温度。Specifically, a sample of 500 mm×50 mm was cut out from the petrolatum-based anticorrosion tape layer of each example and each comparative example. Adjust the constant temperature drying oven to keep it at the set temperature. Use gauze dipped in acetone or ethanol to clean the steel pipe, remove the surface debris, and dry the surface. Wrap the sample twice in the middle of the steel pipe, remove the excess sample, and smooth the surface. Place the steel tube with the wrapped sample on the support and place the tray under it. Put the above-mentioned device as a whole into a constant temperature drying box with a good temperature, keep it horizontal, and observe whether there is any compound dripping in the tray after 24 hours. If there is no dripping, repeat the above experiment by gradually increasing the temperature at 10°C intervals until the compound is observed. When the compound drops, the previous temperature point of the droplet temperature of the compound is recorded as the temperature under temperature-resistant flow.
(矿脂类防腐蚀带层的剥离强度)(Peel strength of petrolatum anti-corrosion tape)
剥离强度根据GB/T32119-2015附录H测定。The peel strength is determined according to Appendix H of GB/T32119-2015.
具体地，将由各实施例及各比较例的矿脂类防腐蚀带层在(23±2)℃的试验环境条件下放置24h，裁取150mm×25mm作为试样。将上述矿脂类防腐蚀带层试样贴在试验钢板(304不锈钢)一端，接触面大约为50mm×25mm。在上述试样上放上厚25μm、大小为150mm×50mm的聚酯膜，用约2kg重的辊压装置往返滚压1次，使上述试样紧密粘贴在钢板上。放置30min后，将贴着聚酯 膜的试样放在拉伸试验机的上部夹具上夹住，试验钢板放在下部的夹具上夹住，用拉伸试验机以(300±30)mm/min的速度拉伸，读出试样刚刚开始脱离钢板时的力(最大值)，记为剥离强度。Specifically, the petrolatum anti-corrosion tape layer of each example and each comparative example was placed under the test environment condition of (23±2)°C for 24h, and 150mm×25mm was cut out as a sample. The above-mentioned petrolatum anti-corrosion tape layer sample is attached to one end of the test steel plate (304 stainless steel), and the contact surface is about 50mm×25mm. A polyester film with a thickness of 25 μm and a size of 150 mm×50 mm was placed on the above-mentioned sample, and rolled back and forth once with a rolling device weighing about 2 kg, so that the above-mentioned sample was tightly adhered to the steel plate. After standing for 30min, place the sample attached to the polyester film on the upper clamp of the tensile testing machine and clamp it, and place the test steel plate on the lower clamp to clamp it. Pull at the speed of min, read the force (maximum value) when the sample just begins to separate from the steel plate, and record it as the peel strength.
(UV透过率)(UV transmittance)
根据GBT17032-1997测定。Determined according to GBT17032-1997.
(耐热性(热循环实验))(Heat resistance (thermal cycle test))
使用钢管直径50mm，长300mm，依次设置底涂层(300g/m
2)，缠绕矿脂类防腐蚀带层，矿脂类防腐蚀带层为350mm(长)×50mm(宽)重叠缠绕在钢管上，然后在矿脂类防腐蚀带层上设置UV遮断层。
Use a steel pipe with a diameter of 50mm and a length of 300mm, set the primer layer (300g/m 2 ) in turn, and wrap the petrolatum anti-corrosion tape layer. , and then set a UV blocking layer on the petrolatum anti-corrosion tape layer.
待UV遮断层干燥后，放入烘箱中，设置条件为：-20℃(4h)～80℃(8h)进行热循环实验。After the UV blocking layer is dried, it is placed in an oven, and the setting conditions are: -20°C (4h) ~ 80°C (8h) for thermal cycling experiments.
将360h以上无油分滴落判定为“○”，将有油分滴落判定为“×”。The absence of oil dripping for more than 360 hours was judged as "○", and the presence of oil dripping was judged as "x".
(耐久性(耐紫外线性能))(Durability (UV resistance))
根据GBT 1865-2009进行测定。Determined according to GBT 1865-2009.
具体地，使用100mm(长)×70mm(宽)宽的钢板。用240#砂纸延长边方向打磨，用纱布蘸取丙酮或乙醇清洗钢管，清除表面杂物，将表面吹干。Specifically, a steel plate having a width of 100 mm (length)×70 mm (width) was used. Use 240# sandpaper to polish the extended edge direction, use gauze dipped in acetone or ethanol to clean the steel pipe, remove the sundries on the surface, and dry the surface.
依次设置底涂层(300g/m
2)，缠绕矿脂类防腐蚀带层，矿脂类防腐蚀带层为150mm(长)×100mm(宽)单层包裹在钢管上一侧，然后在矿脂类防腐蚀带层上设置UV遮断层，形成防腐蚀结构体。
Set the primer layer (300g/m 2 ) in turn, wrap the petrolatum anti-corrosion tape layer, the petrolatum anti-corrosion tape layer is 150mm (length) × 100mm (width) single layer wrapped on the upper side of the steel pipe, and then in the mine. A UV blocking layer is arranged on the lipid anti-corrosion tape layer to form an anti-corrosion structure.
将上述制备好的防腐蚀结构体样品放入氙灯老化试验机中，设置条件：空气温度38℃，BPT：63℃，照射量180W/m
2，18min喷水/2h。
The anti-corrosion structure sample prepared above was put into the xenon lamp aging tester, and the setting conditions were: air temperature 38°C, BPT: 63°C, irradiation amount 180W/m 2 , 18min water spray/2h.
2000h以后将防腐蚀结构体剥离，目视观察钢板是否有腐蚀。将无腐蚀判断为“○”，将有腐蚀判断为“×”。After 2000h, peel off the anti-corrosion structure, and visually observe whether the steel plate is corroded. No corrosion was judged as "○", and corrosion was judged as "x".
(耐久性(热循环1000h+盐雾实验2000h))(Durability (thermal cycle 1000h + salt spray test 2000h))
使用100mm(长)×70mm(宽)的钢板。用240#砂纸延长边方向打磨，用纱布蘸取丙酮或乙醇清洗钢管，清除表面杂物，将表面吹干。A steel plate of 100 mm (length) x 70 mm (width) was used. Use 240# sandpaper to polish the extended edge direction, use gauze dipped in acetone or ethanol to clean the steel pipe, remove the sundries on the surface, and dry the surface.
依次设置底涂层(300g/m
2)，缠绕矿脂类防腐蚀带层，矿脂类防腐蚀 带层为150mm(长)×100mm(宽)单层包裹在钢管上一侧，然后在矿脂类防腐蚀带层上设置UV遮断层，形成防腐蚀结构体。
Set the primer layer (300g/m 2 ) in turn, wrap the petrolatum anti-corrosion tape layer, the petrolatum anti-corrosion tape layer is 150mm (length) × 100mm (width) single layer wrapped on the upper side of the steel pipe, and then in the mine. A UV blocking layer is arranged on the lipid anti-corrosion tape layer to form an anti-corrosion structure.
将上述制备好的防腐蚀结构体样品放入烘箱中，设置条件为：-20℃(4h)～80℃(8h)进行热循环实验1000h。The above-prepared anti-corrosion structure samples were placed in an oven, and the setting conditions were: -20°C (4h) ~ 80°C (8h) for a thermal cycle experiment for 1000h.
将热处理过的样品放置到盐水喷雾试验箱中进行腐蚀试验2000h。腐蚀试验的条件为：The heat-treated samples were placed in a salt spray test chamber for corrosion test for 2000h. The conditions of the corrosion test are:
盐水喷雾35℃(5％盐水)2hrSalt spray at 35°C (5% saline) for 2hr
干燥60℃/25％RH4hrDry 60℃/25%RH4hr
加湿50℃/98％RH2hrHumidification 50℃/98%RH2hr
2000h盐雾腐蚀实验以后将样品剥离，目视观察钢板是否有腐蚀。将无腐蚀判断为“○”，将有腐蚀判断为“×”。After the 2000h salt spray corrosion test, the sample was peeled off, and the steel plate was visually observed for corrosion. No corrosion was judged as "○", and corrosion was judged as "x".
制备例1：Preparation Example 1:
将矿脂100质量份、液体石蜡30质量份、单宁酸8质量份、滑石粉40质量份、酰胺蜡(熔点：140～146℃)11质量份和有机膨润土16质量份逐一添加到反应容器中，并加热到150℃，搅拌混合均匀。然后自然冷却到室温，制得矿脂类底涂材料1。100 parts by mass of petrolatum, 30 parts by mass of liquid paraffin, 8 parts by mass of tannic acid, 40 parts by mass of talc, 11 parts by mass of amide wax (melting point: 140-146° C.) and 16 parts by mass of organobentonite were added to the reaction vessel one by one and heated to 150°C, stirring and mixing evenly. Then, it was naturally cooled to room temperature to obtain petrolatum-based primer material 1.
制备例2：Preparation Example 2:
将矿脂100质量份、液体石蜡30质量份、单宁酸8质量份、滑石粉40质量份和酰胺蜡(熔点：140～146℃)11质量份逐一添加到反应容器中，并加热到150℃，搅拌混合均匀。然后自然冷却到室温，制得矿脂类底涂材料2。100 parts by mass of petrolatum, 30 parts by mass of liquid paraffin, 8 parts by mass of tannic acid, 40 parts by mass of talc, and 11 parts by mass of amide wax (melting point: 140-146° C.) were added to the reaction vessel one by one, and heated to 150 ℃, stir and mix well. Then naturally cooled to room temperature to prepare petrolatum-based primer material 2.
制备例3：Preparation Example 3:
将矿脂100质量份、液体石蜡30质量份、单宁酸8质量份和滑石粉40质量份逐一添加到反应容器中，并加热到150℃，搅拌混合均匀。然后自然冷却到室温，制得矿脂类底涂材料3。100 parts by mass of petrolatum, 30 parts by mass of liquid paraffin, 8 parts by mass of tannic acid and 40 parts by mass of talc were added to the reaction vessel one by one, heated to 150° C., stirred and mixed uniformly. Then naturally cooled to room temperature to prepare petrolatum-based primer material 3 .
制备例4：Preparation Example 4:
氧化聚合型底涂材料4：日东电工株式会社制造的NITOHULLMAC XG-PN。Oxidative polymerization type primer 4: NITOHULLMAC XG-PN manufactured by Nitto Denko Co., Ltd.
制备例5：Preparation Example 5:
将矿脂100质量份、单宁酸1质量份、滑石粉30质量份、氢氧化铝60质量份和酰胺蜡(熔点：140～146℃)26质量份逐一添加到反应容器中，并加热到150℃，搅拌混合均匀。100 parts by mass of petrolatum, 1 part by mass of tannic acid, 30 parts by mass of talc, 60 parts by mass of aluminum hydroxide, and 26 parts by mass of amide wax (melting point: 140-146° C.) were added to the reaction vessel one by one, and heated to 150℃, stir and mix well.
将聚酯无纺布浸渍到上述制作的混合物中，使聚酯无纺布充分含浸混合物后冷却到室温制得矿脂类防腐蚀带层1。矿脂类防腐蚀带层1的厚度为1.1mm。矿脂类防腐蚀带层1的耐温流下温度为120℃。The polyester non-woven fabric is dipped into the above-prepared mixture, the polyester non-woven fabric is fully impregnated with the mixture, and the mixture is cooled to room temperature to prepare the petrolatum-based anti-corrosion tape layer 1 . The thickness of the petrolatum-based anti-corrosion tape layer 1 is 1.1 mm. The temperature of the petrolatum-based anti-corrosion tape layer 1 is 120°C under temperature resistance.
制备例6：Preparation Example 6:
将矿脂100质量份、单宁酸1质量份、滑石粉30质量份、氢氧化铝60质量份、酰胺蜡(熔点：140～146℃)7质量份和有机膨润土5质量份逐一添加到反应容器中，并加热到150℃，搅拌混合均匀。100 parts by mass of petrolatum, 1 part by mass of tannic acid, 30 parts by mass of talc, 60 parts by mass of aluminum hydroxide, 7 parts by mass of amide wax (melting point: 140-146° C.) and 5 parts by mass of organobentonite were added to the reaction one by one. In a container, and heated to 150 ℃, stir and mix well.
将聚酯无纺布浸渍到上述制作的混合物中，使聚酯无纺布充分含浸混合物后冷却到室温制得矿脂类防腐蚀带层2。矿脂类防腐蚀带层2的厚度为1.1mm。矿脂类防腐蚀带层2的耐温流下温度为100℃。The polyester non-woven fabric was dipped into the above-prepared mixture, and the polyester non-woven fabric was fully impregnated with the mixture, and then cooled to room temperature to prepare the petrolatum-based anti-corrosion tape layer 2 . The thickness of the petrolatum-based anti-corrosion tape layer 2 is 1.1 mm. The temperature of the petrolatum-based anti-corrosion tape layer 2 under temperature flow is 100°C.
制备例7：Preparation Example 7:
将矿脂100质量份、1.1单宁酸1质量份、滑石粉65质量份和酰胺蜡(熔点：140～146℃)3质量份逐一添加到反应容器中，并加热到150℃，搅拌混合均匀。Add 100 parts by mass of petrolatum, 1 part by mass of 1.1 tannic acid, 65 parts by mass of talc and 3 parts by mass of amide wax (melting point: 140-146°C) into the reaction vessel one by one, and heated to 150°C, stirring and mixing evenly .
将聚酯无纺布浸渍到上述制作的混合物中，使聚酯无纺布充分含浸混合物后冷却到室温制得矿脂类防腐蚀带层3。矿脂类防腐蚀带层3的厚度为1.1mm。矿脂类防腐蚀带层3的耐温流下温度为60℃。The polyester non-woven fabric is dipped into the above-prepared mixture, the polyester non-woven fabric is fully impregnated with the mixture, and the mixture is cooled to room temperature to prepare the petrolatum-based anti-corrosion tape layer 3 . The thickness of the petrolatum-based anti-corrosion tape layer 3 is 1.1 mm. The temperature of the petrolatum-based anti-corrosion tape layer 3 under temperature-resistant flow is 60°C.
制备例8：Preparation Example 8:
氧化聚合型涂料：日东电工株式会社制造的NITOHULLMAC XG-T。Oxidative polymerization type paint: NITOHULLMAC XG-T manufactured by Nitto Denko Co., Ltd.
制备例9：Preparation Example 9:
PU涂料：上海旱龙实业有限公司制造的房屋卫士聚氨酯防水涂料。PU coating: Houseguard polyurethane waterproof coating manufactured by Shanghai Hanlong Industrial Co., Ltd.
实施例1Example 1
由防腐蚀结构体保护的被覆体使用Q235材质的钢管或钢板。The coating protected by the anti-corrosion structure is made of Q235 steel pipe or steel plate.
防腐蚀结构体的底涂层的形成使用上述制备例1中制备的矿脂类底涂材 料1。For the formation of the undercoat layer of the anti-corrosion structure, the petrolatum-based primer material 1 prepared in the above-mentioned Preparation Example 1 was used.
将上述矿脂类底涂材料1以300g/m
2的涂布量涂布在钢管或钢板的表面，形成底涂层。
The above-mentioned petrolatum-based primer material 1 was applied to the surface of a steel pipe or steel sheet in a coating amount of 300 g/m 2 to form a primer layer.
然后，在上述底涂层上以半包裹方式缠绕上述制备例5中制备的矿脂类防腐蚀带层1。Then, the petrolatum-based anti-corrosion tape layer 1 prepared in the above-mentioned Preparation Example 5 was wound on the above-mentioned undercoat layer in a semi-wrapped manner.
接着，在上述矿脂类防腐蚀带层1上涂刷2层上述制备例8的氧化聚合型涂料，形成于上述矿脂类防腐蚀带层1上作为UV遮断层。由此，得到防腐蚀结构体。Next, two layers of the oxidative polymerization type paint of the above-mentioned Preparation Example 8 were painted on the above-mentioned petrolatum-based anti-corrosion tape layer 1 to form a UV blocking layer on the above-mentioned petrolatum-based anti-corrosion tape layer 1 . Thereby, the anticorrosion structure was obtained.
实施例2～5Examples 2 to 5
除了如表1所示地改变底涂层、矿脂类防腐蚀带层和UV遮断层以外，以与实施例1相同的方式获得防腐蚀结构体。评价结果示于表1中。An anti-corrosion structure was obtained in the same manner as in Example 1, except that the primer layer, the petrolatum-based anti-corrosion tape layer, and the UV blocking layer were changed as shown in Table 1. The evaluation results are shown in Table 1.
比较例1～5Comparative Examples 1 to 5
除了如表1所示地改变底涂层、矿脂类防腐蚀带层和UV遮断层以外，以与实施例1相同的方式获得防腐蚀结构体。评价结果示于表1中。An anti-corrosion structure was obtained in the same manner as in Example 1, except that the primer layer, the petrolatum-based anti-corrosion tape layer, and the UV blocking layer were changed as shown in Table 1. The evaluation results are shown in Table 1.
表1Table 1
如表1所示，实施例1～5无油分析出，耐久性(耐紫外线性能)和耐久性(热循环1000h+盐雾试验2000h)的评价结果优异，即使用于室外环境中， 例如高温环境或有直射日光照射的场所时，也具有优异的防腐蚀性能，能够优异地兼顾耐热性和接着性，施工性优异。另外，添加氢氧化铝的实施例1～5的防腐蚀结构体具有难燃的特性，在一定程度上能够有效应对突发性火灾，降低火灾对设备设施的破坏程度，保障人员的安全及减少火灾造成的损伤，可用于需要阻燃的设备或建筑的防腐防护中。As shown in Table 1, Examples 1 to 5 were analyzed without oil, and the evaluation results of durability (ultraviolet resistance) and durability (thermal cycle 1000h + salt spray test 2000h) were excellent, even when used in outdoor environments, such as high temperature environments Even in places exposed to direct sunlight, it has excellent anti-corrosion properties, can achieve both excellent heat resistance and adhesiveness, and is excellent in workability. In addition, the anti-corrosion structures of Examples 1 to 5 with aluminum hydroxide added have the characteristics of flame retardancy, which can effectively deal with sudden fires to a certain extent, reduce the degree of damage to equipment and facilities by fires, and ensure the safety and reduction of personnel. The damage caused by fire can be used in the anti-corrosion protection of equipment or buildings that need to be flame retardant.
如表1所示，比较例1～5的油分析出、耐久性(耐紫外线性能)和耐久性(热循环1000h+盐雾试验2000h)中的至少一项的评价结果为差，均无法作为室外环境下期望的防腐蚀结构体使用。As shown in Table 1, the oil analysis of Comparative Examples 1 to 5 was poor in at least one of the evaluation results of durability (ultraviolet resistance) and durability (thermal cycle 1000h+salt spray test 2000h), and none of them could be used as outdoor Anti-corrosion structures used in environments where desired.
产业上的可利用性Industrial Availability
本发明的防腐蚀结构体能够用于室外环境中，即使用于高温环境或有直射日光照射的场所时，也能够具有优异的防腐蚀性能，能够有效阻隔紫外线，防腐寿命长，涂装性和外观优异，并且耐热性、耐紫外线性和施工性也优异。另外，本发明的防腐蚀结构体适用于任何形状结构物的包覆防腐，在室外环境中具有广泛的应用前景。The anti-corrosion structure of the present invention can be used in an outdoor environment, even when used in a high-temperature environment or a place exposed to direct sunlight, it can also have excellent anti-corrosion performance, can effectively block ultraviolet rays, have a long anti-corrosion life, and can be painted. Excellent in appearance, and also excellent in heat resistance, UV resistance, and workability. In addition, the anti-corrosion structure of the present invention is suitable for coating anti-corrosion of structures of any shape, and has wide application prospects in outdoor environments.
Claims (9)
- 一种防腐蚀结构体，其特征在于，具有：An anti-corrosion structure is characterized in that it has:矿脂类防腐蚀带层；Petrolatum anti-corrosion belt layer;底涂层，所述底涂层设置在所述矿脂类防腐蚀带层的一侧上；和a primer layer disposed on one side of the petrolatum-based anti-corrosion tape layer; and紫外线遮断层，所述紫外线遮断层设置在所述矿脂类防腐蚀带层的与所述底涂层相反的一侧，an ultraviolet shielding layer, the ultraviolet shielding layer is arranged on the opposite side of the petrolatum anticorrosion belt layer and the primer layer,所述矿脂类防腐蚀带层的耐温流下温度为90℃以上，The temperature of the petrolatum anti-corrosion tape layer under temperature resistance is 90°C or more,所述矿脂类防腐蚀带层的剥离强度为600N/m以上，The peeling strength of the petrolatum anti-corrosion tape layer is more than 600N/m,所述矿脂类防腐蚀带层包含耐温向上材A5，The petrolatum anti-corrosion tape layer contains temperature resistant upper material A5,所述耐温向上材A5包括有机膨润土和/或结晶蜡，The temperature resistant upper material A5 comprises organobentonite and/or crystalline wax,所述底涂层的耐温流下温度为70℃以上。The temperature under temperature-resistant flow of the undercoat layer is 70°C or higher.
- 根据权利要求1所述的防腐蚀结构体，其特征在于，所述矿脂类防腐蚀带层还包含基油A1，The anti-corrosion structure according to claim 1, wherein the petrolatum anti-corrosion tape layer further comprises base oil A1,相对于100质量份所述基油A1，所述耐温向上材A5的含量为10～40质量份。The content of the temperature resistant upper material A5 is 10 to 40 parts by mass relative to 100 parts by mass of the base oil A1.
- 根据权利要求1所述的防腐蚀结构体，其特征在于，所述矿脂类防腐蚀带层还包含基油A1和无机填料A2，The anti-corrosion structure according to claim 1, wherein the petrolatum anti-corrosion tape layer further comprises base oil A1 and inorganic filler A2,相对于100质量份所述基油A1，所述无机填料A2的含量为50～120质量份。The content of the inorganic filler A2 is 50 to 120 parts by mass relative to 100 parts by mass of the base oil A1.
- 根据权利要求3所述的防腐蚀结构体，其特征在于，所述无机填料A2包括选自由滑石粉、氢氧化铝和氢氧化镁组成的组中的至少一种。The anti-corrosion structure according to claim 3, wherein the inorganic filler A2 comprises at least one selected from the group consisting of talc, aluminum hydroxide and magnesium hydroxide.
- 根据权利要求1～4中任一项所述的防腐蚀结构体，其特征在于，所述矿脂类防腐蚀带层具有难燃的特性。The anti-corrosion structure according to any one of claims 1 to 4, wherein the petrolatum-based anti-corrosion tape layer has flame-retardant properties.
- 根据权利要求1～5中任一项所述的防腐蚀结构体，其特征在于，所述底涂层由底涂组合物形成，The anticorrosion structure according to any one of claims 1 to 5, wherein the undercoat layer is formed of an undercoat composition,所述底涂组合物包含矿脂类底涂组合物或氧化聚合型底涂组合物，The primer composition comprises a petrolatum based primer composition or an oxidatively polymerized primer composition,所述矿脂类底涂组合物包含耐温向上材B5，The petrolatum based primer composition comprises temperature resistant upper material B5,优选地，所述耐温向上材B5包括有机膨润土和/或结晶蜡。Preferably, the temperature resistant upper material B5 comprises organobentonite and/or crystalline wax.
- 根据权利要求6所述的防腐蚀结构体，其特征在于，所述矿脂类底涂组合物还包含基油B1，The anti-corrosion structure according to claim 6, wherein the petrolatum-based primer composition further comprises a base oil B1,相对于100质量份所述基油B1，所述耐温向上材B5的含量为5～80质量份。The content of the temperature resistant upper material B5 is 5 to 80 parts by mass relative to 100 parts by mass of the base oil B1.
- 根据权利要求1～7中任一项所述的防腐蚀结构体，其特征在于，所述紫外线遮断层的紫外线透过率为1％以下。The anti-corrosion structure according to any one of claims 1 to 7, wherein the ultraviolet transmittance of the ultraviolet shielding layer is 1% or less.
- 根据权利要求1～8中任一项所述的防腐蚀结构体，其特征在于，所述防腐蚀结构体还包括防蚀胶泥层，所述防蚀胶泥层设置在所述底涂层和所述矿脂类防腐蚀带层之间。The anti-corrosion structure according to any one of claims 1 to 8, characterized in that, the anti-corrosion structure further comprises an anti-corrosion mortar layer, and the anti-corrosion mortar layer is provided on the undercoat layer and the between the petrolatum anti-corrosion belt layers.
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| CN202110258308.6A CN115042487A (en) | 2021-03-09 | 2021-03-09 | Corrosion-resistant structure |
| CN202110258308.6 | 2021-03-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078124A (en) * | 2006-05-26 | 2007-11-28 | 株式会社那卡波技工 | Coating and anti-corrosion method for steel products |
| JP2017101367A (en) * | 2015-12-04 | 2017-06-08 | 日東電工株式会社 | Substrate sheet |
| CN110431255A (en) * | 2017-03-30 | 2019-11-08 | 日东电工株式会社 | Anti-corrosion structure body |
| CN210831027U (en) * | 2019-09-29 | 2020-06-23 | 山东胜跃防腐材料有限公司 | Anticorrosive area of petrolatum |
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- 2021-03-09 CN CN202110258308.6A patent/CN115042487A/en active Pending
- 2021-11-24 TW TW110143801A patent/TW202246056A/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078124A (en) * | 2006-05-26 | 2007-11-28 | 株式会社那卡波技工 | Coating and anti-corrosion method for steel products |
| JP2017101367A (en) * | 2015-12-04 | 2017-06-08 | 日東電工株式会社 | Substrate sheet |
| CN110431255A (en) * | 2017-03-30 | 2019-11-08 | 日东电工株式会社 | Anti-corrosion structure body |
| CN210831027U (en) * | 2019-09-29 | 2020-06-23 | 山东胜跃防腐材料有限公司 | Anticorrosive area of petrolatum |
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