WO2011096392A1 - Procédé de formation de film et article formé du film - Google Patents

Procédé de formation de film et article formé du film Download PDF

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Publication number
WO2011096392A1
WO2011096392A1 PCT/JP2011/052024 JP2011052024W WO2011096392A1 WO 2011096392 A1 WO2011096392 A1 WO 2011096392A1 JP 2011052024 W JP2011052024 W JP 2011052024W WO 2011096392 A1 WO2011096392 A1 WO 2011096392A1
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Prior art keywords
weight
parts
coating material
intermediate coating
coating layer
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PCT/JP2011/052024
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English (en)
Japanese (ja)
Inventor
健一郎 相井
賢治 原田
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エスケー化研株式会社
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Application filed by エスケー化研株式会社 filed Critical エスケー化研株式会社
Priority to CN201180008264.6A priority Critical patent/CN102753768B/zh
Priority to SG2012057253A priority patent/SG183132A1/en
Priority to JP2011552782A priority patent/JP5689822B2/ja
Publication of WO2011096392A1 publication Critical patent/WO2011096392A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/008—Provisions for reducing rain noise
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0281—Repairing or restoring roofing or roof covering

Definitions

  • the present invention relates to a method for forming a coating on a metal roof of an existing building.
  • roof materials made of metal plates are relatively lighter than tile materials, and have been widely used in various buildings in recent years.
  • a metal roof what coated the surface of the steel plate is used universally.
  • the sound of rain during the rain tends to be large, which is not preferable from the viewpoint of the living environment.
  • Patent Document 1 discloses a heat insulating material made of a synthetic resin foam, a rubber foam, or the like on the back surface (indoor side) of the metal roof. A method of providing the above is described.
  • Patent Document 2 discloses a vibration damping property in which a loss factor is a specific value in a metal roof structure composed of a metal roof covering material, a vibration damping adhesive layer, and a base material. A technique for reducing rain noise by using an adhesive is described.
  • Patent Document 3 describes a soundproof coating method in which a paint having a hard film hardness is applied and then a paint having a hard film hardness is applied in layers. ing. Such a construction method of Patent Document 3 is applied to the outdoor side of a metal roof, and can also be carried out in combination with renovation of the metal roof.
  • Patent Document 4 Japanese Patent Application Laid-Open No. 2004-10903 describes that a coating material containing a high ratio of ceramic hollow particles is applied to a roof material.
  • JP 2000-64512 A Japanese Patent Laying-Open No. 2005-9205 Japanese Patent Laid-Open No. 2003-238897 JP 2004-10903 A
  • the present invention has been made in view of the above problems, and in existing buildings provided with a metal roof, it is possible to easily and effectively reduce rain noise, and to increase the temperature due to direct sunlight. It is to obtain a method that can be suppressed.
  • the present inventor As a result of earnest study, on the outdoor side surface of the metal roof of the existing building, if a coating with a specific intermediate coating layer and overcoating layer is formed, it is It has been found that the noise level when raindrops come into contact with a metal roof can be kept low, and that the temperature rise during direct sunlight can be suppressed, and the present invention has been completed.
  • An intermediate coating layer having a thickness of 50 to 1000 ⁇ m is formed by dispersing 30 to 300 parts by weight of inorganic powder particles in 100 parts by weight of a resin matrix derived from a urethane prepolymer on the outdoor surface of a metal roof in an existing building. And forming an overcoat layer on the intermediate coating layer, which includes an infrared reflective powder and / or an infrared transmissive powder and has a contact angle with water of the formed coating of 70 ° or less.
  • the present invention rain noise can be reduced easily and effectively in an existing building provided with a metal roof. Furthermore, in this invention, since the temperature rise of the roofing material by direct sunlight can be suppressed, it becomes possible to reduce the cooling consumption in summer etc.
  • the method of the present invention can also serve as a renovation of a metal roof, and contributes to improving the aesthetics of a building.
  • the film forming method of the present invention is applied to the outdoor side surface of a metal roof in an existing building.
  • Examples of the base material constituting the metal roof include metal plates such as steel plates, stainless steel plates, aluminum plates, aluminum alloy plates and copper plates, zinc-aluminum plated steel plates such as gallite and galvalume, aluminum plated steel plates, galvanized steel plates and the like. Examples thereof include a plated metal plate. These may be coated with various paints. The thickness of such a substrate is usually about 0.2 to 2 mm.
  • the present invention can obtain an advantageous effect particularly when applied to a substrate having an existing coating film with low brightness.
  • the lightness (L * ) of such an existing coating film is preferably 80 or less, more preferably 60 or less.
  • the lightness (L * ) is a value in the CIE L * a * b * color space and is measured by a spectrophotometer.
  • an intermediate coating layer may be provided directly on the substrate, but an undercoat layer made of an anticorrosive paint or the like can also be provided.
  • an undercoat layer made of an anticorrosive paint or the like.
  • the effects of the present invention can be obtained over a long period of time.
  • such an undercoat layer does not inhibit the rain noise reduction effect, the temperature rise suppression effect, or the like.
  • a resin, an anticorrosive pigment, or the like containing an essential component can be used as the anticorrosive paint.
  • the resin include vinyl chloride resin, epoxy resin, acrylic resin, urethane resin, acrylic silicon resin, and alkyd resin.
  • a solution type, a dispersion type, or a mixture thereof can be used as a form of resin.
  • rust preventive pigment commercially available or known materials can be used. Specifically, for example, phosphoric acid-based anticorrosive pigments such as zinc phosphate, iron phosphate, and aluminum phosphate, and phosphorous acid-based anticorrosive pigments such as zinc phosphite, iron phosphite, and aluminum phosphite. , Molybdate anticorrosive pigments such as calcium molybdate, aluminum molybdate and barium molybdate, vanadium anticorrosive pigments such as vanadium oxide, chromate anticorrosives such as strontium chromate, zinc chromate, calcium chromate, potassium chromate and barium chromate Examples include rust pigments. The rust preventive pigment may be mixed in a ratio of usually 5 to 150 parts by weight, preferably about 10 to 100 parts by weight with respect to 100 parts by weight of the resin solid content.
  • the undercoat layer can be formed by applying a rust preventive paint as described above and drying.
  • a coating method spray coating, roller coating, brush coating, or the like may be employed as appropriate. Drying may be performed at room temperature (about 0 to 40 ° C.).
  • the thickness of the undercoat layer is usually about 5 to 200 ⁇ m, preferably about 10 to 100 ⁇ m.
  • an intermediate coating layer is provided on a substrate provided with an undercoat layer as necessary as described above.
  • This intermediate coating layer is formed by an intermediate coating material in which inorganic powder particles are dispersed in a resin matrix derived from a urethane prepolymer.
  • the resin matrix derived from the urethane prepolymer in the intermediate coating material is one in which a polymer containing a reaction product of the urethane prepolymer forms a continuous phase.
  • a specific resin matrix by adopting such a specific resin matrix, it is possible to enhance the rain noise reduction effect and the like.
  • the urethane prepolymer is obtained by reacting a polyol compound with an excess of a polyisocyanate compound, and has an isocyanate group at the molecular end.
  • polyol compound constituting the urethane prepolymer examples include polyether polyol and polyester polyol. Their weight average molecular weight is usually 300 to 5000 (preferably 500 to 3000).
  • examples of the polyisocyanate compound include aliphatic, alicyclic or aromatic polyisocyanates used in the production of general polyurethanes. Specifically, for example, tetramethylene diisocyanate, hexamethylene diisocyanate, 1,4-cyclohexane diisocyanate, 4,4′-dicyclohexylmethane diisocyanate, isophorone diisocyanate, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, meta Examples include xylylene diisocyanate and 4,4′-diphenylmethane diisocyanate.
  • the reaction ratio between the polyol compound and the polyisocyanate compound may be set to a ratio in which the isocyanate group in the polyisocyanate compound becomes excessive with respect to the hydroxyl group in the polyol compound.
  • NCO / OH is 1.2 to 2 It is desirable to set to about 2.
  • the resin matrix in the intermediate coating material contains at least a reaction product of the urethane prepolymer and the active hydrogen-containing compound.
  • the active hydrogen-containing compound is a compound that can react with the isocyanate group of the urethane prepolymer.
  • Examples of such active hydrogen-containing compounds include amino group-containing compounds and hydroxyl group-containing compounds.
  • examples of the amino group-containing compound include aromatic, aliphatic or heterocyclic polyamines, and epoxide addition-modified products, amidation-modified products, and Mannich-modified products.
  • the hydroxyl group-containing compound examples include a polyol compound such as polyether polyol, polyester polyol, and acrylic polyol, a hydroxyl group-containing vinyl compound, and a hydroxyl group-containing epoxy compound.
  • a polyol compound such as polyether polyol, polyester polyol, and acrylic polyol
  • a hydroxyl group-containing vinyl compound examples include acrylic polyol, a hydroxyl group-containing vinyl compound, and a hydroxyl group-containing epoxy compound.
  • the urethane prepolymer and the hydroxyl group-containing vinyl compound are reacted, the remaining vinyl groups can be further reacted with each other.
  • the urethane prepolymer and the hydroxyl group-containing epoxy compound are reacted, the remaining epoxy group can be reacted by further adding an amino group-containing compound or the like.
  • acrylic polyol is particularly suitable.
  • inorganic powders include heavy calcium carbonate, precipitated calcium carbonate, kaolin, talc, clay, porcelain clay, China clay, barium sulfate, barium carbonate, quartz sand, quartzite, diatomaceous earth, titanium oxide, zinc oxide, aluminum oxide These can be used, and one or more of these can be used.
  • the average particle size of the inorganic granular material is preferably about 0.1 to 100 ⁇ m (more preferably 0.2 to 50 ⁇ m, still more preferably 0.3 to 20 ⁇ m).
  • an inorganic powder particle having an average particle diameter of 0.5 to 100 ⁇ m is 50% of the total amount of the inorganic powder particles. It is desirable that it is contained by weight% or more (more preferably 70 weight% or more). If the inorganic granular material has such a structure, it is advantageous in terms of thickening, rain noise reduction, temperature rise suppression, and the like.
  • the inorganic granular material in the intermediate coating layer has a ratio of 30 to 300 parts by weight (preferably 50 to 250 parts by weight, more preferably 80 to 230 parts by weight) with respect to 100 parts by weight of the resin matrix derived from the urethane prepolymer. To do. If the ratio of the inorganic powder particles is within such a range, it is suitable in terms of increasing the thickness of the intermediate coating layer, improving the strength, etc., and obtaining sufficient effects in rain noise reduction, adhesion strength, etc. Is possible.
  • the intermediate coating layer if there are too few inorganic particles, it is difficult to obtain a thick film and the film strength is insufficient, which may hinder rain noise reduction, temperature rise suppression, adhesion, etc. There is a risk of it coming. When there are too many inorganic powder granules, it is difficult to obtain a sufficient effect in rain noise reduction.
  • Such an intermediate coating layer is an intermediate coating material containing a urethane prepolymer, an active hydrogen-containing compound, and an inorganic powder, or a reaction product of an urethane prepolymer and a hydroxyl group-containing epoxy compound, an amino group-containing compound, and an inorganic material. It can be formed by applying and drying an intermediate coating material containing a powder or the like.
  • the intermediate coating material may be an aqueous type or a solvent (organic solvent) type. Specifically, in the former form of the intermediate coating material, a urethane prepolymer and an active hydrogen compound are mixed at the time of coating, and both are allowed to react in the film formation process, thereby forming a resin matrix.
  • the weight ratio of the solid content of the urethane prepolymer and the active hydrogen compound is preferably 50/100 to 400/100, more preferably 70/100 to 200/100, still more preferably 90/100 to 150/100.
  • a reaction product of a urethane prepolymer and a hydroxyl group-containing epoxy compound and an amino group-containing compound are mixed at the time of coating, and a resin matrix is formed by reacting both in the film formation process. be able to.
  • spray coating roller coating, brush coating, or the like may be employed as appropriate. Drying may be performed at room temperature.
  • the thickness of the intermediate coating layer is usually 50 to 1000 ⁇ m, preferably 100 to 500 ⁇ m.
  • the thickness of the intermediate coating layer is less than 50 ⁇ m, it is difficult to obtain sufficient rain noise reduction effect and temperature rise suppression effect.
  • the thickness is larger than 1000 ⁇ m, the load due to the intermediate coating layer is increased, which is disadvantageous in terms of reducing the weight load on the building.
  • an infrared reflective powder and / or an infrared transmissive powder is included on the intermediate coating layer, and the contact angle of the formed film with water (hereinafter also simply referred to as “contact angle”) is 70 ° or less.
  • An overcoat layer is provided.
  • the mechanism of action for the rain noise reduction effect is not clear, but it is presumed that the following points contributed in general. That is, when the contact angle of the topcoat layer is low, the rebound when the raindrops that fall is in contact with the roof is suppressed, and the cushioning property of the intermediate coating material acts synergistically to reduce rain noise. It is considered a thing. In the present invention, since the contact angle of the topcoat layer is low, it is considered that a water film is formed on the surface of the topcoat layer during rain, and the splash of raindrops is also suppressed by the water film.
  • the thermal conductivity of the upper coating layer itself is suppressed by including an infrared reflective powder and / or an infrared transmissive powder in the upper coating layer. It is considered that the action is effective.
  • the overcoating layer has a contact angle of 70 ° or less, preferably 60 ° or less, more preferably 50 ° or less.
  • the contact angle with respect to the water of a formation film is a value measured with a contact angle meter.
  • Such an overcoat layer can be formed by applying and drying an overcoat material satisfying the above conditions.
  • an overcoat material a binder and a material containing an infrared reflecting powder and / or an infrared transmitting powder can be used.
  • the top coating material may contain various additives as necessary in addition to such components.
  • the binder in the top coating material examples include resins having hydrophilic groups such as hydroxyl groups, carboxyl groups, amino groups, and amide groups, resins having hydrophilic segments such as polyalkylene oxides, polyoxazolines, and polyamides, or various resins. The thing etc. which mix
  • blended the hydrophilic property provision component are mentioned.
  • a vinyl acetate resin, an alkyd resin, a vinyl chloride resin, an acrylic resin, a urethane resin, an acrylic silicon resin, a fluororesin, or the like or a composite system of these can be used. Among these, at least one selected from acrylic resin, urethane resin, acrylic silicon resin, and fluororesin is particularly preferable.
  • the form of the resin may be either water-based or solvent-based.
  • hydrophilicity-imparting component examples include inorganic oxide sols and alkoxysilane compounds.
  • examples of the inorganic oxide sol include an aluminum oxide sol, a silicon oxide sol, a zirconium oxide sol, an antimony oxide sol, and the like. It is advantageous.
  • alkoxysilane compound tetraalkoxysilane, condensates of tetraalkoxysilane, and modified products thereof can be used.
  • the average condensation degree of the alkoxysilane compound is usually about 1 to 100, preferably about 4 to 20.
  • Suitable hydrophilicity-imparting components in the present invention include tetraalkoxysilane condensates containing an alkoxyl group having 1 to 2 carbon atoms and an alkoxyl group having 3 to 12 carbon atoms, and in particular, an alkoxyl group of the entire compound. Of these, those in which 5 to 50 equivalent% are alkoxyl groups having 3 to 12 carbon atoms are preferred. Examples of the alkoxyl group having 3 to 12 carbon atoms include straight chain such as n-propoxy group, n-butoxy group, n-pentyloxy group, n-hexyloxy group, n-octyloxy group, and n-dodecyloxy group.
  • Alkoxyl group isopropoxy group, isobutoxy group, t-butoxy group, sec-butoxy group, isopentyloxy group, neopentyloxy group, isohexyloxy group, 3-methylpentyloxy group, 1-methylhexyloxy group, 1 -Branched alkoxyl groups such as ethylpentyloxy group, 2,3-dimethylbutoxy group, 1,5-dimethylhexyloxy group, 2-ethylhexyloxy group, 1-methylheptyloxy group, t-octyloxy group, etc. . Of these, a branched alkoxyl group is preferred.
  • Such a compound can be obtained, for example, by a method in which a tetraalkoxysilane condensate having an alkoxyl group having 1 to 2 carbon atoms is modified by an ester exchange reaction with an alcohol having 3 to 12 carbon atoms.
  • Such a hydrophilicity imparting component may be mixed in a ratio of usually 0.1 to 50 parts by weight (preferably 0.5 to 20 parts by weight) with respect to 100 parts by weight of the resin solid content in the top coating material.
  • Examples of the infrared reflective powder in the overcoat layer include aluminum flakes, titanium oxide, barium sulfate, zinc oxide, calcium carbonate, silicon oxide, magnesium oxide, zirconium oxide, yttrium oxide, indium oxide, alumina, and iron chromium composite oxide. Products, manganese bismuth composite oxide, manganese yttrium composite oxide, and the like.
  • examples of the infrared transmitting powder include perylene pigment, azo pigment, chrome lead, petal, vermilion, titanium red, cadmium red, quinacridone red, isoindolinone, benzimidazolone, phthalocyanine green, phthalocyanine blue, and cobalt.
  • examples thereof include blue, indanthrene blue, ultramarine blue, and bitumen, and one or more of these can be used.
  • the mixing amount of the infrared reflecting powder and / or the infrared transmitting powder is preferably 1 to 200 parts by weight, more preferably 2 to 100 parts by weight with respect to 100 parts by weight of the resin solid content. It is. With such a mixing amount, the top coat layer can be set to a desired color, and the intermediate coat layer can be protected.
  • the powder in the top coat layer preferably contains only the above-described infrared reflective powder and / or infrared transmissive powder.
  • the overcoat layer in the present invention can be formed by applying the above-mentioned overcoat material and drying it.
  • a coating method spray coating, roller coating, brush coating, or the like may be employed as appropriate. Drying may be performed at room temperature.
  • the thickness of the overcoat layer is usually 200 ⁇ m or less, preferably 10 to 150 ⁇ m.
  • an intermediate coat layer and an overcoat layer, or an undercoat layer, an intermediate coat layer and an overcoat layer are sequentially laminated on the outdoor side surface of a metal roof in an existing building, and the overcoat layer is formed of a laminated film. Provided on the outermost surface.
  • an intermediate layer may be provided between the intermediate coating layer and the top coating layer as necessary.
  • Inner coating material 1 For 130 parts by weight of urethane-modified epoxy resin (isocyanate-terminated urethane prepolymer (glycidol addition product of polyether polyol (weight average molecular weight 1000) and 2,4-tolylene diisocyanate) and non-volatile content 70% by weight)) , 120 parts by weight of heavy calcium carbonate A (average particle size 3 ⁇ m), 24 parts by weight of a hydrocarbon solvent, 1 part by weight of a silicone-based antifoaming agent, and 9 parts by weight of a modified polyamine (solid content 100% by weight) are mixed uniformly. Thus, the intermediate coating material 1 was produced.
  • urethane-modified epoxy resin isocyanate-terminated urethane prepolymer (glycidol addition product of polyether polyol (weight average molecular weight 1000) and 2,4-tolylene diisocyanate) and non-volatile content 70% by weight)
  • Intercoat material 2 Soluble acrylic polyol A (hydroxyl value 50 KOH mg / g, glass transition temperature 34 ° C., solid content 46 wt%) 104 parts by weight heavy calcium carbonate A (average particle size 3 ⁇ m) 110 parts by weight, hydrocarbon solvent 10 parts by weight, 1 part by weight of silicone-based antifoaming agent, reaction product of isocyanate-terminated urethane prepolymer A (polyether polyol (weight average molecular weight 2000) and 2,4-tolylene diisocyanate, nonvolatile content 100% by weight, NCO
  • the intermediate coating material 2 was produced by uniformly mixing 52 parts by weight) (content 3% by weight).
  • Intercoat material 3 To 225 parts by weight of heavy calcium carbonate A, 25 parts by weight of a hydrocarbon solvent, 1 part by weight of a silicone-based antifoaming agent, and 52 parts by weight of an isocyanate-terminated urethane prepolymer A are uniformly mixed with 104 parts by weight of a soluble acrylic polyol A. Thus, an intermediate coating material 3 was produced.
  • Intercoat material 4 95 parts by weight of heavy calcium carbonate A, 25 parts by weight of titanium oxide A (average particle size 0.3 ⁇ m), 10 parts by weight of hydrocarbon solvent, 1 part by weight of silicone-based antifoaming agent, based on 104 parts by weight of soluble acrylic polyol A
  • the intermediate coating material 4 was produced by uniformly mixing 52 parts by weight of the isocyanate-terminated urethane prepolymer A.
  • Inner coating material 7 Dimer acid-modified epoxy resin (solid content 70% by weight) 55 parts by weight, heavy calcium carbonate A 120 parts by weight, hydrocarbon solvent 15 parts by weight, silicone-based antifoaming agent 1 part by weight, modified polyamine (solid content 100% by weight) %) The intermediate coating material 7 was produced by uniformly mixing 45 parts by weight.
  • Inner coating material 8 110 parts by weight of heavy calcium carbonate A (average particle size 3 ⁇ m), 10 parts by weight of hydrocarbon solvent, silicone based on 96 parts by weight of soluble polyether polyol (hydroxyl value 50 KOH mg / g, solid content 50% by weight) 1 part by weight of antifoaming agent, isocyanate-terminated urethane prepolymer A (reaction product of polyether polyol (weight average molecular weight 2000) and 2,4-tolylene diisocyanate, nonvolatile content 100% by weight, NCO content 3% by weight)
  • the intermediate coating material 8 was manufactured by uniformly mixing 52 parts by weight.
  • Non-water-dispersed acrylic polyol A (hydroxyl value 50 KOH mg / g, glass transition temperature 38 ° C., solid content 50 wt%) 188 parts by weight, phthalocyanine green 7 parts by weight, phthalocyanine blue 3 parts by weight, perylene red 5 parts by weight, Benzimidazolone yellow 4 parts by weight, hydrocarbon solvent 23 parts by weight, silicone-based antifoaming agent 1 part by weight, isocyanurate structure-containing polyisocyanate A (non-volatile content 100% by weight, NCO content 21% by weight) 6 parts by weight,
  • the top coating material 1 was manufactured by uniformly mixing 3 parts by weight of the following hydrophilicity-imparting component.
  • Hydrophilicity imparting component 52 parts by weight of isobutyl alcohol and 0.03 part by weight of dibutyltin dilaurate as a catalyst are added to 100 parts by weight of methyl silicate condensate (weight average molecular weight 1000, average condensation degree 8, non-volatile content 100%). Then, after mixing, a demethanol reaction was performed at 75 ° C. for 8 hours to produce a hydrophilicity-imparting component.
  • the equivalent ratio of methyl group to isobutyl group in the hydrophilicity imparting component was 62:38.
  • the top coating material 1 is spray-coated so that the dry film thickness is 40 ⁇ m, and dried for 7 days in a standard state (temperature 23 ° C., relative humidity 50%). I left it outdoors for a month.
  • the contact angle of the test plate obtained by the above method was measured using a CA-A type contact angle measuring device manufactured by Kyowa Interface Science Co., Ltd. As a result, the contact angle of the top coating material 1 was 35 °.
  • Coating material 2 18 parts by weight of phthalocyanine green, 23 parts by weight of hydrocarbon-based solvent, 1 part by weight of silicone-based antifoaming agent, 6 parts by weight of isocyanurate structure-containing polyisocyanate A, and hydrophilicity imparting component 3 for 188 parts by weight of non-aqueous dispersion type acrylic polyol A
  • the top coat material 2 was produced by mixing the parts by weight uniformly. When the contact angle of the topcoat material 2 was measured by the same method as that for the topcoat material 1, the contact angle of the topcoat material 2 was 37 °.
  • Coating material 3 18 parts by weight of phthalocyanine blue, 23 parts by weight of hydrocarbon solvent, 1 part by weight of silicone-based antifoaming agent, 6 parts by weight of isocyanurate structure-containing polyisocyanate A, and hydrophilicity imparting component 3 for 188 parts by weight of non-aqueous dispersion type acrylic polyol A
  • the top coating material 3 was manufactured by mixing the weight parts uniformly. When the contact angle of the top coating material 3 was measured by the same method as that for the top coating material 1, the contact angle of the top coating material 3 was 36 °.
  • Non-aqueous dispersion type acrylic polyol B (hydroxyl value 50 KOHmg / g, glass transition temperature 32 ° C., solid content 50% by weight) 188 parts by weight, manganese bismuth composite oxide 18 parts by weight, hydrocarbon solvent 23 parts by weight, silicone
  • the top coating material 4 was manufactured by uniformly mixing 1 part by weight of the antifoaming agent, 6 parts by weight of polyisocyanate A containing isocyanurate structure, and 1 part by weight of the hydrophilicity-imparting component. When the contact angle of the top coating material 4 was measured by the same method as that for the top coating material 1, the contact angle of the top coating material 4 was 54 °.
  • Topcoat 5 7 parts by weight of phthalocyanine green, 3 parts by weight of phthalocyanine blue, 5 parts by weight of perylene red, 4 parts by weight of benzimidazolone yellow, 30 parts by weight of hydrocarbon-based solvent, silicone-based defoaming with respect to 188 parts by weight of non-aqueous dispersion type acrylic polyol B
  • the top coating material 5 was manufactured by uniformly mixing 1 part by weight of the agent, 6 parts by weight of polyisocyanate A containing isocyanurate structure, and 1 part by weight of the hydrophilicity-imparting component. When the contact angle of the topcoat material 5 was measured by the same method as that for the topcoat material 1, the contact angle of the topcoat material 5 was 56 °.
  • Coating material 6 7 parts by weight of phthalocyanine green, 3 parts by weight of phthalocyanine blue, 5 parts by weight of perylene red, 4 parts by weight of benzimidazolone yellow, 26 parts by weight of hydrocarbon-based solvent, silicone-based defoaming with respect to 188 parts by weight of non-aqueous dispersion type acrylic polyol A
  • the top coating material 6 was manufactured by uniformly mixing 1 part by weight of the agent and 6 parts by weight of polyisocyanate A containing the isocyanurate structure. When the contact angle of the top coating material 6 was measured by the same method as that for the top coating material 1, the contact angle of the top coating material 6 was 83 °.
  • Topcoat 7 Uniform mixing of 18 parts by weight of carbon black, 26 parts by weight of a hydrocarbon solvent, 1 part by weight of a silicone-based antifoaming agent and 6 parts by weight of polyisocyanate A having an isocyanurate structure with 188 parts by weight of the non-aqueous dispersion type acrylic polyol A Thus, a top coating material 7 was produced. When the contact angle of the top coating material 7 was measured by the same method as that for the top coating material 1, the contact angle of the top coating material 7 was 82 °.
  • the test plate obtained by the above method was installed horizontally, and water was continuously sprinkled for 1 minute using a shower nozzle from 3 m above. At this time, the noise level was measured with a noise meter installed 10 cm away from the back surface of the test plate.
  • the noise level was evaluated according to the following evaluation criteria. A: Less than 80 dB B: 80 dB or more and less than 85 dB C: 85 dB or more and less than 90 dB D: 90 dB or more
  • a test plate was prepared in the same procedure as in the above “noise level test” (however, an aluminum plate having a size of 150 mm ⁇ 70 mm ⁇ 1 mm was used).
  • the test plate obtained by the above method was immersed in warm water at 50 ° C. for 72 hours, and then the adhesion was evaluated by a cross-cut tape method according to JIS K 5600-5-6.
  • the evaluation criteria are as follows. A: The defect area is less than 5% B: The defect area is 5% or more and less than 15% C: The defect area is 15% or more
  • the test plate obtained by the above method was irradiated with an infrared lamp from a distance of 20 cm, and the test specimen back surface temperature when the temperature rise reached equilibrium was measured.
  • the evaluation criteria are as follows. A: Specimen back surface temperature of less than 65 ° C B: Specimen back surface temperature of 65 ° C or more and less than 70 ° C C: Specimen back surface temperature of 70 ° C or more and less than 75 ° C D: Specimen back surface temperature of 75 ° C or more
  • Test plates were prepared in the same procedure as the above “noise level test” (however, two aluminum plates each having a size of 300 mm ⁇ 150 mm ⁇ 1 mm were used).
  • test plate obtained by the above method was exposed to an accelerated weathering tester (Metal Weather; manufactured by Daipura Wintes Co., Ltd.) for 240 hours, and then the noise level was measured in the same procedure as the above “noise level test”. .
  • This test was conducted for Test Example 2 and Test Example 18.
  • Test Example 1 excellent results were obtained in any test.
  • Test Examples 2 to 8 A test plate was prepared in the same manner as in Test Example 1 except that the intermediate coating material and the top coating material shown in Table 1 were used, and each test was performed. The results are shown in Table 1. In Test Examples 2 to 8, excellent results were obtained in all tests.
  • Test Examples 9 to 11 A test plate was prepared in the same manner as in Test Example 1 except that the intermediate coating material and the top coating material shown in Table 2 were used, and each test was performed. The results are shown in Table 2. In Test Examples 9 to 11, sufficient results could not be obtained as compared with Test Examples 1 to 8.
  • Test Example 12 A test plate was prepared in the same manner as in Test Example 1 except that the coating material 1 was directly coated thereon after coating the rust-proof primer, and each test was performed. The results are shown in Table 2. In Test Example 12, sufficient results could not be obtained.
  • Test Example 13 A test plate was prepared in the same manner as in Test Example 1 except that the top coat material 5 was directly coated thereon after the rust preventive primer was applied, and each test was performed. The results are shown in Table 2. In Test Example 13, sufficient results could not be obtained.
  • Test Examples 14 to 16 A test plate was prepared in the same manner as in Test Example 1 except that the intermediate coating material and the top coating material shown in Table 2 were used, and each test was performed. The results are shown in Table 2. In Test Examples 14 to 16, sufficient results could not be obtained.
  • Test Example 17 The intermediate coating material and the top coating material shown in Table 2 were used, and the intermediate coating material was coated so that the dry film thickness was 30 ⁇ m. Except for this, a test plate was prepared in the same manner as in Test Example 1, and each test was performed. The results are shown in Table 2. In Test Example 17, sufficient results could not be obtained.
  • Test Example 18 A test plate was prepared in the same manner as in Test Example 1 except that the intermediate coating material and the top coating material shown in Table 2 were used, and each test was performed. The results are shown in Table 2. As a result of the noise level test after the accelerated deterioration, Test Example 2 was better than Test Example 18.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

L'invention concerne un procédé permettant de réduire aisément et efficacement le bruit de la pluie et avec lequel une augmentation de température due à l'exposition à la lumière directe du soleil peut être supprimée dans un bâtiment existant ayant un toit en métal. Le procédé comprend les étapes consistant à : former une couche de revêtement intermédiaire d'une épaisseur de 50 à 1000 µm sur la surface extérieure d'un toit en métal d'un bâtiment existant, la couche de revêtement intermédiaire contenant de 30 à 300 parties en poids de fines particules inorganiques dispersées dans 100 parties en poids d'une matrice de résine à base d'un prépolymère d'uréthanne ; et former une couche de revêtement finale sur la couche de revêtement intermédiaire, la couche de revêtement finale contenant une poudre réfléchissant le rayonnement infrarouge et/ou une poudre transparente au rayonnement infrarouge, et l'angle de contact du film formé avec l'eau étant de 70° au maximum.
PCT/JP2011/052024 2010-02-03 2011-02-01 Procédé de formation de film et article formé du film WO2011096392A1 (fr)

Priority Applications (3)

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CN201180008264.6A CN102753768B (zh) 2010-02-03 2011-02-01 包覆膜形成方法以及包覆膜形成体
SG2012057253A SG183132A1 (en) 2010-02-03 2011-02-01 Film-forming method and film-formed article
JP2011552782A JP5689822B2 (ja) 2010-02-03 2011-02-01 被膜形成方法及び被膜形成体

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JP2010-022579 2010-02-03

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CN103290932A (zh) * 2013-05-21 2013-09-11 石家庄日加精细矿物制品有限公司 一种建筑表面用反光节能材料的制备方法
JP2014091788A (ja) * 2012-11-05 2014-05-19 Clariant Internatl Ltd 遮熱塗料用黒色顔料組成物、それを用いた遮熱塗料、並びに調色、塗装のためのそれの使用
JP2015071160A (ja) * 2013-09-05 2015-04-16 ベック株式会社 化粧方法
JP2017075317A (ja) * 2016-10-27 2017-04-20 クラリアント・インターナシヨナル・リミテツド 遮熱塗料用黒色顔料組成物、それを用いた遮熱塗料、並びに調色、塗装のためのそれの使用
JP2017519847A (ja) * 2014-04-25 2017-07-20 クラリアント・インターナシヨナル・リミテツド 遮熱塗料用黒色顔料組成物及びそれの使用並びにそれを用いた遮熱塗料、及び調色、塗装のためのそれの使用

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JP2003238897A (ja) * 2002-02-14 2003-08-27 Nippon Tokushu Toryo Co Ltd 遮熱防音塗料及び遮熱防音工法
JP2004204578A (ja) * 2002-12-26 2004-07-22 Nippon Tokushu Toryo Co Ltd 遮熱防音工法及び遮熱防音構造体
JP2007238640A (ja) * 2006-03-03 2007-09-20 Sk Kaken Co Ltd 塗料組成物
JP2010059779A (ja) * 2008-08-04 2010-03-18 Sk Kaken Co Ltd 被膜形成方法及び被膜形成体

Cited By (7)

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Publication number Priority date Publication date Assignee Title
JP2014091788A (ja) * 2012-11-05 2014-05-19 Clariant Internatl Ltd 遮熱塗料用黒色顔料組成物、それを用いた遮熱塗料、並びに調色、塗装のためのそれの使用
CN103290932A (zh) * 2013-05-21 2013-09-11 石家庄日加精细矿物制品有限公司 一种建筑表面用反光节能材料的制备方法
CN103290932B (zh) * 2013-05-21 2017-04-12 石家庄日加精细矿物制品有限公司 一种建筑表面用反光节能材料的制备方法
JP2015071160A (ja) * 2013-09-05 2015-04-16 ベック株式会社 化粧方法
JP2018192473A (ja) * 2013-09-05 2018-12-06 ベック株式会社 化粧方法
JP2017519847A (ja) * 2014-04-25 2017-07-20 クラリアント・インターナシヨナル・リミテツド 遮熱塗料用黒色顔料組成物及びそれの使用並びにそれを用いた遮熱塗料、及び調色、塗装のためのそれの使用
JP2017075317A (ja) * 2016-10-27 2017-04-20 クラリアント・インターナシヨナル・リミテツド 遮熱塗料用黒色顔料組成物、それを用いた遮熱塗料、並びに調色、塗装のためのそれの使用

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CN102753768B (zh) 2015-11-25
JP5689822B2 (ja) 2015-03-25
MY166262A (en) 2018-06-22
CN102753768A (zh) 2012-10-24
JP2015092058A (ja) 2015-05-14
JPWO2011096392A1 (ja) 2013-06-10
SG183132A1 (en) 2012-09-27
SG193164A1 (en) 2013-09-30

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