CN109608976B - Temporary protection strippable coating with flame retardant property and preparation method thereof - Google Patents
Temporary protection strippable coating with flame retardant property and preparation method thereof Download PDFInfo
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- CN109608976B CN109608976B CN201811502141.8A CN201811502141A CN109608976B CN 109608976 B CN109608976 B CN 109608976B CN 201811502141 A CN201811502141 A CN 201811502141A CN 109608976 B CN109608976 B CN 109608976B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D153/00—Coating compositions based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D153/02—Vinyl aromatic monomers and conjugated dienes
- C09D153/025—Vinyl aromatic monomers and conjugated dienes modified
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
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- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
A temporary protective strippable coating with flame retardant property and a preparation method thereof are disclosed, wherein the formula of the coating comprises the following components: 3-4% of SBS resin; 11-15% of SEBS resin; 8-10% of a flame retardant; 6-10% of silicon dioxide; 7-10% of talcum powder; 50-54% of a mixed solvent; and 2-3% of an auxiliary agent. The invention respectively adds SBS resin and SEBS resin into a mixed solvent, stirs at high speed to completely dissolve the resin, then adds polymerization inhibitor, talcum powder, silicon dioxide and assistant, stirs at high speed, mixes and grinds to the fineness less than or equal to 30 mu m, filters and discharges to obtain the temporary protective strippable coating with flame retardant property, the coating meets the requirements of the common temporary protective strippable coating on peeling strength, elongation and tensile strength, and simultaneously has good flame retardant property, so that the coating can be used well in atmospheric environment, welding, cutting and open fire environment, and plays a role in temporary protection.
Description
Technical Field
The invention belongs to the field of coatings, and particularly relates to a temporary protective strippable coating with flame retardant property and a preparation method thereof.
Background
The temporary protective strippable coating is widely applied to the weight-reducing processing process of equipment in the aerospace field, and chemical milling protective coating is also adopted as a protective material in the technical processes of processing of high-hardness alloy, anodizing surface treatment, electroplating and the like in the mechanical industry; can also be applied to the temporary protection of the middle-temperature cementing (temperature 160 ℃) of composite materials, the engraving processing protection of industrial art, the chemical corrosion prevention masking protection of the coated object surface, or the temporary protection field of the scratch prevention on the instrument surface and mechanical equipment; the method can also be used for temporary protection of nuclear power construction finished products such as nuclear reactor pressure vessels, evaporators, water replenishing tanks and the like and parts used for large ship construction. During these temporary protections welding or cutting processes are often encountered, open flame ablation and the paint film after stripping can be exposed to open flame and sparks during welding and cutting during storage handling. Therefore, the temporary protective strippable coating is required to have certain flame retardant property and weather resistance, maintain the mechanical property after long-term use, complete the temporary protection function and be easy to manually strip.
However, the common strippable coating is prepared by mixing chloroprene rubber, styrene butadiene rubber resin, pigment, filler and auxiliary agent, and the coating is very easy to burn when exposed to open fire. Particularly, when exposed fire is encountered during welding or cutting, fire is easily caused, causing a great economic loss, and when the paint film is left attached to a substrate, the paint film cannot be peeled off after burning by the exposed fire, which limits the application range of temporary protection.
Disclosure of Invention
The invention aims to provide a temporary protective coating with flame retardant property and a preparation method thereof, the temporary protective coating meets the requirements of peeling strength and tensile strength of common temporary protective strippable coatings, and simultaneously has good flame retardant property, so that the coating can be well used in atmospheric environment, welding, cutting and open flame environment, and plays a role in temporary protection.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a temporary protection strippable coating with flame retardant property, which comprises the following components in percentage by mass:
preferably, the SBS resin is at least one of SBS1401, SBSF875, SBS1155ES, SBS411, and TPE 188.
Preferably, the SEBS resin is at least one of SEBS601, SEBS503, and SEBS 602T.
Preferably, the flame retardant is a mixture compounded by at least two of zinc borate, antimony trioxide, melamine, magnesium hydroxide, expandable graphite and tetrabromodiphenyl ethane.
More preferably, the flame retardant contains zinc borate and antimony trioxide, and the mass percentage of the zinc borate to the antimony trioxide is 40% -50%: 50 to 60 percent.
More preferably, the flame retardant contains antimony trioxide, tetrabromodiphenylethane and melamine, and the mass percent of the antimony trioxide, the tetrabromodiphenylethane and the melamine is 54% -55%: 36% -37%: 9 to 10 percent.
Preferably, the silica is at least one of a200, ED30, a380, ASTM100, QS 102.
Preferably, the auxiliary agent is at least two of BYK-085, BYK-410, BYK-163, YCK-2160 and BYK-110.
Preferably, the mixed solvent is at least two of toluene, xylene and ethyl acetate.
More preferably, the mixed solvent is a mixed solvent obtained by mixing two or three of toluene, xylene and ethyl acetate in equal mass.
The preparation method of the temporary protection strippable coating with the flame retardant property comprises the following steps: preparing materials according to the formula, respectively adding SBS resin and SEBS resin into a mixed solvent, stirring at a high speed (the preferred stirring speed is 1500-2000 rpm) to completely dissolve the SBS resin and the SEBS resin, adding a polymerization inhibitor, talcum powder, silicon dioxide and an auxiliary agent, stirring at a high speed (the preferred stirring speed is 1000-2000 rpm) to mix, grinding in a sand mill until the fineness is less than or equal to 30 mu m, and filtering and discharging (preferably using a 80-mesh filter screen) to obtain the temporary protective strippable coating with the flame retardant property.
One of the key technologies in the invention is as follows: the selection of the type of the flame retardant, the compounding ratio of various flame retardants and the addition amount of the flame retardant, for example, the addition amount of the flame retardant must be controlled within the range of 8-10% to achieve the flame retardant effect, the addition amount of the flame retardant in the coating is too small to achieve the ideal flame retardant effect, and the addition amount is too large to achieve the requirements of artificial aging, tensile strength and the like of the coating.
The peel strength of the temporary protection strippable coating prepared by the invention is more than or equal to 70N/m, the elongation of a coating film is more than or equal to 470%, and the tensile strength of the coating film is more than or equal to 5.5 MPa; meanwhile, when the flame retardant property of the coating film is detected on a substrate according to ASTM E84, the flame retardance of the coating film reaches ClassA grade, namely the FSI value (flame propagation index value) is 0-25, the smoke index is less than 450, and the coating film is non-combustible under the condition of open fire for 5 minutes; the paint film has no phenomena of crack, bulge, blister and shedding under the simulated condition of artificial accelerated aging for 500h, can be manually stripped from a substrate, and has excellent strippability and weather resistance. Therefore, the coating provided by the invention meets the requirements of common temporary protective strippable coatings on peel strength, elongation and tensile strength, and has good flame retardant property, so that the coating can be well used in atmospheric environment, welding, cutting and open fire environment, and plays a role in temporary protection.
The invention has the beneficial effects that:
according to the invention, the thermoplastic elastomer SBS resin and the SEBS resin are mixed for use, so that the peeling strength, the tensile strength and the weather resistance of a paint film are improved; the reinforcing effect of the paint film is further increased by selecting silicon dioxide and talcum powder as fillers; the flame retardant is obtained by selecting a proper flame retardant and compounding the flame retardant according to a certain proportion, so that a paint film has good flame retardant property while maintaining good mechanical property, and the paint film can not burn no matter in cutting or welding and open fire conditions.
The paint film obtained by the temporary protective strippable paint can be manually stripped from the substrate after being burned by open fire when being attached to the substrate, and has good strippability.
Detailed Description
The present invention will be further described with reference to the following examples.
The reagents and materials used in the following examples are conventional in the art, except as otherwise specified, and some of the raw material manufacturers are as follows: SBS1401 resin is Yueyang petrochemical production, SBS1155ES is American Keteng polymer production, SEBS601 and SEBS602T resin is Barlin petrochemical production, silicone ED-30 is Grace production, BYK-085 and BYK-410 are Pico chemical production, and YCK-2160 is Yike chemical production.
Example 1:
3g of SBS1401 resin and 11g of SEBS601 resin are dissolved in 21g of toluene and 21g of xylene mixed solvent, the resin is completely dissolved by stirring with a high-speed stirrer at the rotating speed of 1500 rpm, 4.4g of flame retardant antimony trioxide, 3.2g of zinc borate, 7g of talcum powder, 6g of ED-30 gas silicon, 0.7g of BYK-085, 0.7g of BYK-410 and 0.5g of YCK-2160 are added, the mixture is stirred and mixed with the high-speed stirrer at the rotating speed of 2000 rpm, the mixture is ground to the fineness of 30 mu m in a sand mill, and the mixture is filtered and discharged by using an 80-mesh filter screen to obtain the temporary protective strippable coating with flame retardant property.
The flame-retardant temporary protection peelable coating is prepared into a sample plate, the thickness of a paint film after drying is 230 mu m, and the performance test result after drying for 24 hours at normal temperature is shown in table 1, wherein the preparation method of the sample during peel strength test comprises the following steps: (1) three 2A12-T4 aluminum alloy test pieces with smooth and non-corrosive surfaces of 220mm multiplied by 30mm multiplied by (2-3) mm are taken for deoiling. Pre-corroding in NaOH water solution at 50-60 deg.c for 1-3 min, and flushing with warm water. Performing photochemical treatment for 10-30 s in a 30% HNO3 solution, washing with cold water (the water film is required to be continuous for 30s without breaking), and blow-drying for later use; (2) the paint to be tested is stirred evenly and diluted with a diluent to 60-110 s (coat-4 viscometer). And (3) brushing the treated test piece with a proper brush for 3-4 times, wherein the test piece is dried for 30-40 min each time, the brushing directions of the two times are mutually vertical, and both sides and four sides of the test piece are brushed. Drying at room temperature for 24h for later use, and controlling the thickness of the coating film to be 220-350 μm. Then, the prepared sample is cut into two parallel lines with the width of 25mm by a blade, the coating is peeled off by 120mm from one end, and the test piece is placed on a tensile machine to test the peeling strength of the coating according to the specification of GB/T2790.
TABLE 1
Example 2
3.5Kg of SBS1155ES resin and 13Kg of SEBS602T resin are dissolved in 26Kg of ethyl acetate and 26Kg of xylene mixed solvent, the resin is completely dissolved by stirring with a high-speed stirrer at 2000 revolutions per minute, 4.9Kg of flame retardant antimony trioxide, 3.3Kg of tetrabromodiphenyl ethane, 0.9Kg of melamine, 7.8Kg of talcum powder, ED-307 Kg of silicon, 0.7Kg of BYK-085, 0.6Kg of BYK-410 and 0.6Kg of YCK-2160 are added and mixed by stirring with a high-speed stirrer at 1500 revolutions per minute, and then the mixture is ground in a sand mill to the fineness of 30 μm, and the material is filtered and discharged by a 80-mesh filter screen to obtain the strippable coating special for nuclear equipment with low halogen content.
The flame-retardant temporary protective strippable coating was prepared into a sample so that the thickness after the end of drying was 300 μm, and the test performance results after drying at room temperature for 24 hours are shown in Table 2.
TABLE 2
As can be seen from tables 1-2, the peel strength of the temporary protective strippable coating prepared by the invention is more than or equal to 70N/m, the elongation of the coating film is more than or equal to 470%, and the tensile strength of the coating film is more than or equal to 5.5 MPa; meanwhile, when the flame retardant property of the coating film is detected on a substrate according to ASTM E84, the flame retardance of the coating film reaches ClassA grade, namely the FSI value (flame propagation index value) is 0-25, the smoke index is less than 450, and the coating film is non-combustible under the condition of open fire for 5 minutes; the paint film has no phenomena of crack, bulge, blister and shedding under the simulated condition of artificial accelerated aging for 500h, can be manually stripped from a substrate, and has excellent strippability and weather resistance.
Claims (4)
1. The temporary protective strippable coating with flame retardant property comprises the following components in percentage by mass:
3-4% of SBS resin;
11-15% of SEBS resin;
8-10% of a flame retardant;
6-10% of silicon dioxide;
7-10% of talcum powder;
50-54% of a mixed solvent;
2-3% of an auxiliary agent;
the flame retardant comprises zinc borate and antimony trioxide, and the mass percentage of the zinc borate to the antimony trioxide is 40-50%: 60% -50%, or the flame retardant contains antimony trioxide, tetrabromodiphenyl ethane and melamine, and the mass percentage of the antimony trioxide, the tetrabromodiphenyl ethane and the melamine is 54% -55%: 36% -37%: 9% -10%; the SBS resin is at least one of SBS1401, SBSF875, SBS1155ES, SBS411 and TPE 188; the SEBS resin is at least one of SEBS601, SEBS503 and SEBS 602T; the silicon dioxide is at least one of A200, ED30, A380, ASTM100 and QS 102.
2. A temporary protective strippable coating material with flame retardant properties according to claim 1 wherein the auxiliary agent is at least two of BYK-085, BYK-410, BYK-163, YCK-2160 and BYK-110.
3. The temporary protective strippable paint with flame retardant property of claim 1 wherein the mixed solvent is at least two of toluene, xylene and ethyl acetate.
4. A process for preparing a temporary protective strippable coating material with flame retardant properties according to any one of claims 1 to 3, which comprises the steps of: preparing the formula according to any one of claims 1-3, respectively adding SBS resin and SEBS resin into a mixed solvent, stirring at a high speed to completely dissolve the SBS resin and the SEBS resin, adding a flame retardant, talcum powder, silicon dioxide and an auxiliary agent, stirring at a high speed, mixing, grinding until the fineness is less than or equal to 30 μm, filtering and discharging to obtain the temporary protective strippable coating with the flame retardant property.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811502141.8A CN109608976B (en) | 2018-12-10 | 2018-12-10 | Temporary protection strippable coating with flame retardant property and preparation method thereof |
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| CN201811502141.8A CN109608976B (en) | 2018-12-10 | 2018-12-10 | Temporary protection strippable coating with flame retardant property and preparation method thereof |
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| CN109608976A CN109608976A (en) | 2019-04-12 |
| CN109608976B true CN109608976B (en) | 2021-12-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311712A (en) * | 2010-05-11 | 2012-01-11 | 博斯蒂克股份公司 | The HMPSA that is used for peelable self-adhesive label |
| CN103351833A (en) * | 2013-08-01 | 2013-10-16 | 烟台德邦科技有限公司 | Preparation method of liquid strippable glue for surface protection film |
| CN103849291A (en) * | 2012-12-06 | 2014-06-11 | 奇美实业股份有限公司 | Releasable adhesive composition and use thereof |
| CN107955466A (en) * | 2017-12-18 | 2018-04-24 | 东莞智炜新材料股份有限公司 | A kind of self-drying type packaging protecting peelable blue gel and preparation method thereof |
| CN108342142A (en) * | 2017-12-21 | 2018-07-31 | 中昊北方涂料工业研究设计院有限公司 | A kind of synthetic method of the special low halogen stripping lacquer of nuclear equipment and its component acryl acid resin used |
-
2018
- 2018-12-10 CN CN201811502141.8A patent/CN109608976B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311712A (en) * | 2010-05-11 | 2012-01-11 | 博斯蒂克股份公司 | The HMPSA that is used for peelable self-adhesive label |
| CN103849291A (en) * | 2012-12-06 | 2014-06-11 | 奇美实业股份有限公司 | Releasable adhesive composition and use thereof |
| CN103351833A (en) * | 2013-08-01 | 2013-10-16 | 烟台德邦科技有限公司 | Preparation method of liquid strippable glue for surface protection film |
| CN107955466A (en) * | 2017-12-18 | 2018-04-24 | 东莞智炜新材料股份有限公司 | A kind of self-drying type packaging protecting peelable blue gel and preparation method thereof |
| CN108342142A (en) * | 2017-12-21 | 2018-07-31 | 中昊北方涂料工业研究设计院有限公司 | A kind of synthetic method of the special low halogen stripping lacquer of nuclear equipment and its component acryl acid resin used |
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