CN105199496A - Coating composition - Google Patents
Coating composition Download PDFInfo
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- CN105199496A CN105199496A CN201510689227.6A CN201510689227A CN105199496A CN 105199496 A CN105199496 A CN 105199496A CN 201510689227 A CN201510689227 A CN 201510689227A CN 105199496 A CN105199496 A CN 105199496A
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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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/16—Homopolymers or copolymers of vinylidene fluoride
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
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Abstract
The invention relates to a coating composition, in particular to a coating composition for a building decoration material. The coating composition comprises PVDF (Polyvinylidene Fluoride) resin, acrylic resin and a solvent containing isophorone. The invention also relates to a coating system containing the coating composition, and a method for preparing the coating system. The coating system also comprises a primer composition, a background color finishing paint composition and a varnish composition. The invention also relates to a method for coating a base material with the coating system, and the coated base material obtained by using the method.
Description
Technical field
The present invention relates to decorative coating compositions, especially building and ornament materials coating composition, it solvent comprising PVDF resin, acrylic resin and comprise isophorone.
Background technology
Timber and marble are common building and ornament materials, in modern architecture, be able to widespread use.But, marble is nonrenewable resource, and the regeneration rate of natural timber is also unable to catch up with the speed of consumption far away, along with the fast development of society's nearly decades, various places are busy at putting up installations has built a large amount of building, especially Highrise buildings, consumes a large amount of natural timber and marble, causes its natural reserves constantly to reduce.Meanwhile, in recovery process, regional nature environment is also inevitably seriously damaged and pollutes.In view of this, in the middle of some local laws and regulations, natural marble is used to decorate by forbidding at the exterior wall six layers more than of Highrise buildings.Therefore, the material of construction selecting other suitable is imperative.And a kind of alternative utilizes industrial baking vanish simulated logs and marble grain on metal base, such building decorative base material provides the natural timber and marble lines that almost can look genuine, serve identical building decoration effect, and production technique is simple, cheap, contribute to reducing building cost.If widespread use, greatly will reduce natural timber and marmorean demand, thus protect natural resource and physical environment better.
For the coating needs (1) of simulated logs and marble grain when extremely low thickness, still keep splendid opacifying power and color developing, color clear-cut can be distinguished, the texture of simulating is true to nature; (2) because this series products is used for outdoor decoration, therefore weathering resistance will be very important technical problem; (3) ply adhesion when how roasting overbrushing is of various texture coating and other coatings and flexible problem.Coating provided by the invention and vanish system solve above-mentioned technical barrier well, meet technical requirements.
Background colour finish compositions of the present invention comprises fluorocarbon resin and acrylic resin, described fluorocarbon resin be with Fluorine containing olefine as tetrafluoroethylene (TFE), vinyl fluoride (VF), vinylidene fluoride (VDF) etc. for basic monomer carries out homopolymerization or copolymerization, or the resinoid containing more C-F chemical bond in the molecular structure carrying out with other monomers copolymerization and side chain to contain the monomer autohemagglutination of fluorine carbon chemical bond or copolymerization based on this and obtain.Coating based on fluorocarbon resin shows excellent weathering resistance, weather resistance, chemically-resistant article, preservative property, thermotolerance, winter hardiness, wear resistance, insulativity, non-adhesive and stain resistance etc., is therefore widely used in the weather-proof protection in surface of traffic facilities on building inside and outside wall, roof, bridge steel structure, building curtain wall, awning surface, photovoltaic industry, road.The fluorocarbon resin that can use in background colour finish compositions of the present invention is PVDF resin, You Duojia manufacturer provides and sells PVDF resin in the market, the PVDF resin that can use in the present invention, the Hylar5000 etc. that Kynar500 or the Su Wei plastics that comprising such as Arkema company provides provide, and market can be purchased other similar PVDF resins available.
In one aspect, based on the gross weight of background colour finish compositions of the present invention, it comprises 15-40 % by weight, the PVDF resin of such as 20-35 % by weight or 25-30 % by weight.
The acrylic resin used in background colour finish compositions of the present invention comprises the mixture of thermosetting acrylic resin, thermoplastic acrylic resin or thermosetting acrylic resin and thermoplastic acrylic resin.Described thermosetting acrylic resin is basal component by acrylic ester monomer (methyl acrylate, ethyl propenoate, n-butyl acrylate and methyl methacrylate, n-BMA etc.), through being cross-linked into insoluble, the not molten acrylic acid polymer of network structure, also claim cross-linking type or response type acrylic resin.With certain functional group in thermosetting acrylic resin, when painting by the functional group reactions that the melamine resin, epoxy resin, urethane etc. that add are many, finally form network structure, reach insoluble not molten effect.Which overcome the shortcoming of thermoplastic acrylic resin, make the mechanical property of film, chemical resistance improves greatly.You Duojia manufacturer provides sale thermosetting acrylic resin in the market, the thermosetting acrylic resin that can use in the present invention, comprise the CR-204 etc. that such as DSM provides, and market can be purchased other similar thermosetting acrylic resins available.
The thermoplastic acrylic resin that can use in background colour finish paint of the present invention, comprise B44, B60 and B66 that such as DOW Chemical provides, BR-85, BR-116 etc. that Mitsubishi Chemical provides, and market can be purchased other similar thermoplastic acrylic resins available.
In one aspect, based on the gross weight of background colour finish compositions of the present invention, it comprises 15-35 % by weight, such as the acrylic resin of 20-30 % by weight or 24-28 % by weight.
Background colour finish compositions of the present invention also comprises aminoresin, and the aminoresin that can use in the present invention comprises MR-603 of such as Changchun Chemical Manufacture etc., and market can be purchased other similar aminoresin available.
In one aspect, based on the gross weight of background colour finish compositions of the present invention, background colour finish compositions of the present invention comprises 0.1-2 % by weight, such as the aminoresin of 0.4-1.6 % by weight or 0.8-1.2 % by weight.
In some embodiments, also color stuffing is comprised in background colour finish paint of the present invention.Background colour finish paint through adding color stuffing has more shallow color usually, such as white, light grey, light yellow etc.Common color stuffing comprises titanium dioxide, iron oxide red, iron oxide yellow or iron oxide black etc.In coating composition of the present invention, by adding different color stuffings, the background colour finish paint of the present invention with different colours can be obtained.All kinds of color stuffings of common brand in the market, comprise the such as coating composition all used in the present invention such as Du Pont R960, Xue Te B430 or special promise CR-880.
In one aspect, based on the gross weight of background colour finish compositions of the present invention, it comprises 5-40 % by weight, such as the color stuffing of 10-35 % by weight, 15-30 % by weight, 18-28 % by weight or 20-24 % by weight.
In some embodiments, background colour finish compositions of the present invention also comprises solvent, can be used for solvent in background colour finish compositions of the present invention as mentioned before.In some embodiments, the operable solvent of background colour finish compositions of the present invention comprises ketone, such as acetone, pimelinketone, isophorone, methyl iso-butyl ketone (MIBK) etc. and/or wherein one or more mixed solvent.
In one aspect, based on the gross weight of background colour finish compositions of the present invention, it comprises 5-40 % by weight, such as the solvent of 10-35 % by weight, 15-30 % by weight, 18-28 % by weight or 20-24 % by weight.
Background colour finish compositions of the present invention can also be included in one or more standard additives common in coating manufacture field, such as comprise softening agent, abrasion resistant particles, film reinforcement particle, flow control agent, thixotropic agent, rheology modifier, catalyzer, antioxidant, biocides, defoamer, tensio-active agent, wetting agent, dispersion agent, adhesion promotor, clay, hindered amine as light stabilizer, UV photoabsorption stablizer, stablizer, filler, grinding supporting agent and other common auxiliary agents, or the combination of above-mentioned additive.
Clear coat composition of the present invention comprises fluorocarbon resin and acrylic resin.The fluorocarbon resin that can use in varnish of the present invention is PVDF resin, You Duojia manufacturer provides and sells PVDF resin in the market, the PVDF resin that can use in the present invention, the Hylar5000 etc. that Kynar500 or the Su Wei plastics that comprising such as Arkema company provides provide, and market can be purchased other similar PVDF resins available.
In one aspect, based on the gross weight of clear coat composition of the present invention, it comprises 20-45 % by weight, the PVDF resin of such as 25-40 % by weight or 30-35 % by weight.
The acrylic resin that can use in clear coat composition of the present invention is thermoplastic propene's acid esters, You Duojia manufacturer provides and sells thermoplastic propene's acid esters in the market, comprise B44, B60 and B66 that such as DOW Chemical provides, the HC-45-6813/HCM-9815 etc. that PPG company provides, and market can be purchased other similar thermoplastic acrylic resins available.
In one aspect, based on the gross weight of clear coat composition of the present invention, it comprises 25-45 % by weight, such as the acrylic resin of 30-40 % by weight or 34-38 % by weight.
In some embodiments, clear coat composition of the present invention also comprises solvent, can be used for solvent in clear coat composition of the present invention as mentioned before.In some embodiments, the operable solvent of clear coat composition of the present invention comprises ketone, such as acetone, pimelinketone, isophorone, methyl iso-butyl ketone (MIBK) etc. and/or wherein one or more mixed solvent.
In one aspect, based on the gross weight of clear coat composition of the present invention, it comprises 25-40 % by weight, such as the solvent of 28-38 % by weight or 30-34 % by weight.
Clear coat composition of the present invention can also be included in one or more standard additives common in coating manufacture field, such as comprise softening agent, abrasion resistant particles, film reinforcement particle, flow control agent, thixotropic agent, rheology modifier, catalyzer, antioxidant, biocides, defoamer, tensio-active agent, wetting agent, dispersion agent, adhesion promotor, clay, hindered amine as light stabilizer, UV photoabsorption stablizer, stablizer, filler, grinding supporting agent and other common auxiliary agents, or the combination of above-mentioned additive.
The invention provides a kind of method be coated in by vanish system on base material, described method comprises: (1) by basecoat composition on base material and baking-curing, (2) background colour finish compositions to be coated on the paint base composition solidified and baking-curing, (3) one or more layers texture coating compositions is coated in successively on the background colour finish paint solidified, required textured pattern is formed through one or more layers coating texture coating compositions, and clear coat composition is coated on texture coating compositions by (4), and baking-curing.
In some embodiments, the coating thickness of paint base composition of the present invention is 6-8 μm, such as, be 5-7 μm; Solidification storing temperature is 205-230 DEG C, such as, be 210-225 DEG C or 215-220 DEG C; Baking time is 30-70 second, such as, be 35-65 second or 40-60 second.
In some embodiments, the coating thickness of background colour finish compositions of the present invention is 16-22 μm, such as, be 18-20 μm; Solidification storing temperature is 210-235 DEG C, such as, be 215-230 DEG C or 220-225 DEG C; Baking time is 30-70 second, such as, be 35-65 second or 40-60 second.
In some embodiments, the coating thickness of texture coating compositions of the present invention is 1 to 6 μm, such as, be 1 to 4 μm or 1 to 2 μm.In some embodiments, the coating thickness of clear coat composition of the present invention is 8-14 μm, such as, be 10-12 μm.Texture coating compositions of the present invention and the co-curing storing temperature of clear coat composition are 230-255 DEG C, such as, be 235-250 DEG C or 240-245 DEG C; Baking time is 30-70 second, such as, be 35-65 second or 40-60 second.
The base material through coating that the coating method that the invention provides through vanish system of the present invention obtains.Described base material is preferably metal base, is more specifically preferably aluminum alloy base material, such as aluminum alloy base material for building.
Summary of the invention
The invention provides a kind of coating composition, it solvent comprising PVDF resin, acrylic resin and comprise isophorone.This coating composition is used as texture coating compositions in vanish system described below.
Present invention also offers a kind of vanish system, it comprises one or more layers texture coating compositions, i.e. the coating composition of the invention described above.
In some embodiments, vanish system of the present invention also comprises paint base composition, background colour finish compositions and clear coat composition.
Present invention also offers the method be coated in by vanish system on base material, comprise basecoat composition on base material and baking-curing, background colour finish compositions to be coated on the paint base composition solidified and baking-curing, one or more layers texture coating compositions is coated on the background colour finish compositions solidified, and clear coat composition is coated on coating composition of the present invention, and baking-curing.
Embodiment
The invention provides a kind of coating composition, it solvent comprising PVDF resin, acrylic resin and comprise isophorone.In some embodiments, coating composition of the present invention also comprises color stuffing.
The PVDF resin used in the present invention refers to polyvinylidene fluoride resin, poly (vinylidenefluoride), english abbreviation PVDF, it is vinylidene fluoride homopolymer, it has the characteristic of fluoro-resin and resins for universal use concurrently, except there is good chemical resistance, high thermal resistance, scale resistance, weathering resistance, resistance to x radiation x performance, also there is the properties such as piezoelectricity, dielectricity, pyroelectricity.Close bond with fluoro-carbonization in its chemical structure to close, this structure with short key matter forms the most stable the most firmly combination with hydrogen ion.Thus fluorocarbon coating has special physical and chemical performance, not only has very strong wear resistance and shock resistance, and extremely harsh with rugged environment in have very high fade resistance and anti-ultraviolet property.You Duojia manufacturer provides and sells PVDF resin in the market, the PVDF resin that can use in the present invention, the Hylar5000 etc. that Kynar500 or the Su Wei plastics that comprising such as Arkema company provides provide, and market can be purchased other similar PVDF resins available.
The acrylic resin used in the present invention refers to the polymkeric substance of the acid of usual derived from propylene or methacrylic monomers.In addition, derived from propylene acid or the multipolymer of methacrylic monomers or the mixture of polymkeric substance can be used.Preferably use following listed acrylic or methacrylic acid type monomer: vinylformic acid, methyl acrylate, ethyl propenoate, propyl acrylate, butyl acrylate, amyl acrylate, Ethyl acrylate, methyl methacrylate, β-dimethyl-aminoethylmethacrylate, propyl methacrylate, butyl methacrylate, pentylmethacrylate, N-Hexyl methacrylate, acrylamide, N hydroxymethyl acrylamide, the copolymer resin of N-butoxy methyl acrylamide and/or N-isobutoxymethyl acrylamide or their mixture.Described acrylate copolymer also can contain oh group, and this is usually derived from the acrylic or methacrylic acid esters that hydroxyl replaces.The example comprises Hydroxyethyl acrylate, Propylene glycol monoacrylate, hy-droxybutyl, hydroxyethyl methylacrylate, Rocryl 410 and/or methacrylate etc.The mixture of the multipolymer of all right derived from propylene acid of described acrylate copolymer or methacrylic monomers and other polymerisable monomers, mixed polymers or polymkeric substance.Other polymerisable monomers described comprise polymerisable monomer common in this area such as vinylbenzene, vinyl cyanide.The weight-average molecular weight of acrylate copolymer can be at least 5,000g/ moles, such as 15, and 000 to 120,000g/ mole.Acrylate copolymer has the acid number of 70-110mgKOH/g usually, such as 80-100mgKOH/g; There is the hydroxyl value of 10-40mgKOH/g, such as 20-30mgKOH/g; And there is the glass transition temperature of-20 to+100 DEG C, such as+20 to+70 DEG C.
Use thermoplastic acrylic resin in the present invention, described thermoplastic acrylic resin is polymerized by vinylformic acid, methacrylic acid and derivative (as ester class, nitrile, amides) thereof the analog thermoplastic resin made.Repeatedly can be subject to thermal softening and cooled and solidified.Being generally chain macromolecule compound, can be homopolymer, can be also multipolymer, have good physical and mechanical properties, weathering resistance, chemical-resistant and excellent water resistance, and guarantor's light tint retention is high.The thermoplastic acrylic resin molecular weight of coatings industry is generally 75,000 ~ 120,000.You Duojia manufacturer provides sale thermoplastic acrylic resin in the market, the thermoplastic acrylic resin that can use in the present invention, comprise B44, B60 and B66 that such as DOW Chemical provides, BR-85, BR-116 etc. that Mitsubishi Chemical provides, and market can be purchased other similar thermoplastic acrylic resins available.
In one aspect, based on the gross weight of coating composition of the present invention, it comprises 5-15 % by weight, such as the PVDF resin of 6-14 % by weight, 7-13 % by weight, 8-12 % by weight or 9-11 % by weight.
In one aspect, based on the gross weight of coating composition of the present invention, it comprises 5-15 % by weight, such as the acrylic resin of 6-14 % by weight, 7-13 % by weight, 8-12 % by weight or 9-11 % by weight.
In one aspect, the ratio of included in coating composition of the present invention PVDF resin and the amount of acrylic resin is 1:0.33-3, such as 1:0.4-2.5,1:0.5-2,1:0.8-1.2 or 1:1.
Coating composition of the present invention comprises solvent, such as organic solvent.The example of suitable organic solvent comprises aliphatic hydrocarbon, such as solvent oil and high flash point VM & P petroleum naphtha; Aromatic hydrocarbons, such as benzene,toluene,xylene and high boiling point aromatic hydrocarbons, comprise S-100, S-100A, S-100B, S-100C, S-150, S-180, S-200 of being provided by HUALUNChemicallndustryCo., Ltd, the Solvesso provided by ExxonMobilChemical
tM100, Solvesso
tM150, Solvesso
tM200; Alcohols, as ethanol, n-propyl alcohol, Virahol, propyl carbinol etc.; Ketone, such as acetone, pimelinketone, isophorone, methyl iso-butyl ketone (MIBK) etc.; Ester class, such as ethyl acetate, butylacetate etc.; Glycols, such as ethylene glycol; Glycol ethers, such as methoxypropanol and ethylene glycol monomethyl ether, ethylene glycol monobutyl ether etc.Also the mixture of various organic solvent can be used.In some embodiments, in coating composition of the present invention, operable solvent preferably includes ketones solvent, and such as aliphatics naphthenic one, aliphatics cycloalkenyl group ketone etc., specifically comprise isophorone, pimelinketone etc.In some embodiments, in coating composition of the present invention, operable solvent is preferably except ketones solvent, also comprises dimethylbenzene, S-100, Solvesso
tMone or more solvents in 100.In some embodiments, in coating composition of the present invention, operable solvent comprises isophorone, pimelinketone, dimethylbenzene, S-100, Solvesso
tM100 and/or wherein one or more mixed solvent.
In one aspect, based on the gross weight of coating composition of the present invention, it comprises 40-80 % by weight, such as 45-75 % by weight, 50-70 % by weight, 55-65 % by weight, 58-62 % by weight or 60 % by weight solvent.
In one aspect, coating composition of the present invention also comprises color stuffing.Color stuffing is a kind of coloured fine particle flour, generally can be scattered in the various media such as water, oil, solvent and resin.It has opacifying power, tinting strength, relatively stable to light, is usually used in preparation coating, ink and coloured plastics and rubber, plays effect that is painted and that fill simultaneously.Common color stuffing comprises titanium dioxide, iron oxide red, iron oxide yellow or iron oxide black etc.In coating composition of the present invention, by adding different color stuffings, the coating composition of the present invention with different colours can be obtained.Timber true to nature and marble grain can be obtained by being coated on base material with appropriate pattern by the coating composition of the present invention of one or more layers different colours.All kinds of color stuffings of common brand in the market, comprise titanium dioxide, iron oxide red, iron oxide yellow or iron oxide black coating composition all used in the present invention.
In one aspect, based on the gross weight of coating composition of the present invention, it comprises 5-35 % by weight, such as the color stuffing of 10-30 % by weight, 15-25 % by weight or 18-22 % by weight.
Coating composition of the present invention can also be included in one or more standard additives common in coating manufacture field, such as comprise softening agent, abrasion resistant particles, film reinforcement particle, flow control agent, thixotropic agent, rheology modifier, catalyzer, antioxidant, biocides, defoamer, tensio-active agent, wetting agent, dispersion agent, adhesion promotor, clay, hindered amine as light stabilizer, UV photoabsorption stablizer, stablizer, filler, grinding supporting agent and other common auxiliary agents, or the combination of above-mentioned additive.
Coating composition of the present invention can be coated on any base material as known in the art, such as, automotive substrates, industrial base material, packaging base material, construction substrate, timber floor and furniture, clothes, electronic product such as electronic product casing and circuit card, glass and transparent substrate, sporting equipment such as golf ball etc.These base materials can be metals or nonmetallic.Metal base comprises such as tin, steel, zinc-plated steel, Wuxi steel, tinplate sheet material, chromium passivating steel, galvanized steel, aluminium, aluminium foil, magnesium and/or magnesium alloy.Non-metallic substrate comprises polymkeric substance, plastics, polyester, polyolefine, polymeric amide, Mierocrystalline cellulose, polystyrene, polyacrylic acid, poly-((ethylene naphthalate)), polypropylene, polyethylene, nylon, EVOH, poly(lactic acid), other " green " polymeric substrates, poly-(ethylene glycol terephthalate) (PET), polycarbonate, the fine butadiene styrene of polycarbonate acrylonitrile (PC/ABS "), polymeric amide, timber, glued board, solid wood composite board, shaving board, medium density fibre board (MDF), cement, stone material, glass, paper, cardboard, textiles, leather comprises synthetic leather and natural leather, and other non-metal base plates.Above-mentioned base material can be processed by certain mode, such as, through processing to obtain vision and/or color effect.Preferred base material comprises metal base, such as magnesium alloy, aluminium alloy, stainless steel and tinplate etc. in the present invention.
Coating composition of the present invention applies by standard art procedures any in this area, the methods such as such as electropaining, spraying, electrostatic spraying, dip-coating, roller coat, brushing, is preferably and uses roller coating coating process to apply.In one aspect, the coat-thickness of coating composition of the present invention through obtaining coated with after fixing is 1 to 10 micron, such as 1 to 8 micron, 1 to 6 micron, 1 to 4 micron or 1 to 2 micron.
When using coating composition of the present invention to form simulation wood texture, usually only need coating one deck coating composition of the present invention.In one aspect, as required, also can the coating composition of the present invention of applied in two coats or more layer to simulate wood texture realistically.When using coating composition of the present invention to form simulation marble grain, usually need coating one deck to three layer Coating material composition of the present invention.In one aspect, the coating composition of the present invention of more than three layers can also be applied as required to simulate marble grain realistically.Applied in two coats or two-layer more than coating composition of the present invention time, every layer of coating composition of the present invention can have identical color or distinct colors.
The invention provides a kind of vanish system, it comprises one or more layers coating composition of the present invention.In one aspect, in vanish system of the present invention, one or more layers coating composition of the present invention is used as texture coating compositions.In one aspect, vanish system of the present invention also comprises paint base composition, background colour finish compositions and clear coat composition.When using in the present invention, term " vanish system " refers to a kind of coating products, and this product comprises one or more coating compositions, and wherein each coating composition independently applies separately.
Paint base composition of the present invention comprises saturated polyester resin, and saturated polyester resin is a class of vibrin, is usually formed through polycondensation by saturated diprotic acid and dibasic alcohol, is divided into linear pattern and branched chain type saturated polyester resin.Saturated polyester resin the most frequently used in this area is the vibrin containing terminal hydroxy group functional group, by with the resin crosslinks such as isocyanic ester, aminoresin film-forming.Saturated polyester resin, mainly for the production of coil coating, has excellent adhesiveproperties and the balance quality of good Hardness and toughness.Meanwhile, film layer has splendid snappiness, good with the wettability of pigment, not easily yellowing, high, the resistance to paint baking over of gloss.Saturated polyester resin is used for priming paint and has the advantages that sticking power is good, highly versatile, weather resisteant, snappiness are outstanding.The saturated polyester resin that can use in the present invention has usually≤acid number of 10mgKOH/g, and such as≤8mgKOH/g ,≤6mgKOH/g; There is the hydroxyl value of 50-100mgKOH/g, such as 60-90mgKOH/g, 70-80mgKOH/g; And there is the solids content of 50-70 % by weight, such as 54-66 % by weight, 58-62 % by weight.You Duojia manufacturer provides sale saturated polyester resin in the market, the saturated polyester resin that can use in the present invention, comprise such as three chemistry, Ou Mode and paint the saturated polyester resin that industry etc. is produced, concrete model comprises HC98315, HC98415, HC98515 etc., and market can be purchased other similar saturated polyester resins available.
In one aspect, based on the gross weight of paint base composition of the present invention, paint base composition of the present invention comprises 30-55 % by weight, such as the saturated polyester resin of 35-50 % by weight or 40-45 % by weight.
Paint base composition of the present invention also comprises aminoresin, aminoresin be by containing amino compound if urea, trimeric cyanamide or benzoguanamine and formaldehyde and alcohols are through a resinoid of polycondensation.Aminoresin can be used as the linking agent in coating composition, adopts aminoresin to have excellent gloss, tint retention, hardness, resistance to chemical reagents, water-fast and weather resisteant etc. as the coating paint film of linking agent.You Duojia manufacturer provides sale aminoresin in the market, the aminoresin that can use in the present invention, comprises MR-603 of such as Changchun Chemical Manufacture etc., and market can be purchased other similar aminoresin available.
In one aspect, based on the gross weight of paint base composition of the present invention, paint base composition of the present invention comprises 1-6 % by weight, such as the aminoresin of 2-5 % by weight or 3-4 % by weight.
Paint base composition of the present invention comprises solvent, such as organic solvent.The example of suitable organic solvent comprises aliphatic hydrocarbon, such as solvent oil and high flash point VM & P petroleum naphtha; Aromatic hydrocarbons, such as benzene,toluene,xylene and high boiling point aromatic hydrocarbons, comprise S-100, S-100A, S-100B, S-100C, S-150, S-180, S-200 of being provided by HUALUNChemicallndustryCo., Ltd, the Solvesso provided by ExxonMobilChemical
tM100, Solvesso
tM150, Solvesso
tM200; Alcohols, as ethanol, n-propyl alcohol, Virahol, propyl carbinol etc.; Ketone, such as acetone, pimelinketone, isophorone, methyl iso-butyl ketone (MIBK) etc.; Ester class, such as ethyl acetate, butylacetate etc.; Glycols, such as ethylene glycol; Glycol ethers, such as methoxypropanol and ethylene glycol monomethyl ether, ethylene glycol monobutyl ether etc.Also the mixture of various organic solvent can be used.In some embodiments, in coating composition of the present invention, operable solvent preferably includes butyl glycol ether, S-150, Solvesso
tM150, one or more solvents in No. 150 solvent oils, 1-Methoxy-2-propyl acetate and/or propyl carbinols.
In one aspect, based on the gross weight of paint base composition of the present invention, it comprises 5-35 % by weight, such as the solvent of 10-30 % by weight or 15-25 % by weight.
In one aspect, paint base composition of the present invention also comprises color stuffing.In paint base composition of the present invention, by adding different color stuffings, the coating composition of the present invention with different colours can be obtained.All kinds of color stuffings of common brand in the market, comprise titanium dioxide, iron oxide red, iron oxide yellow or iron oxide black paint base composition all used in the present invention.
In one aspect, based on the gross weight of paint base composition of the present invention, it comprises 15-35 % by weight, such as the color stuffing of 18-32 % by weight, 20-30 % by weight or 23-28 % by weight.
Paint base composition of the present invention can also be included in one or more standard additives common in coating manufacture field, such as comprise softening agent, abrasion resistant particles, film reinforcement particle, flow control agent, thixotropic agent, rheology modifier, catalyzer, antioxidant, biocides, defoamer, tensio-active agent, wetting agent, dispersion agent, adhesion promotor, clay, hindered amine as light stabilizer, UV photoabsorption stablizer, stablizer, filler, grinding supporting agent and other common auxiliary agents, or the combination of above-mentioned additive.
Embodiment
The following provide embodiments of the invention to help understanding the present invention, but can not be understood as scope of the present invention is limited.Unless otherwise, the number mentioned and percentage ratio are all by weight.
The preparation of embodiment 1 paint base composition
Paint base composition according to following formula preparation vanish system of the present invention:
| Composition | Content (wt%) | |
| Resin | Saturated polyester resin, three chemical HC98315 | 44.2 |
| Resin | Aminoresin, Changchun chemical industry MR 603 | 3.8 |
| Resin | HID resin, PPG FU 040 | 4.1 |
| Color stuffing | Titanium dioxide, hundred profit connection BRL-699 | 16.2 |
| Color stuffing | Zinc phosphate, ring figured woven silk material chemical industry PZ20 | 6.5 |
| Solvent | Butyl glycol ether | 10.8 |
| Solvent | No. 150 solvent oils | 13.2 |
| Auxiliary agent | Adhesion promoter, loose tail chemical industry Borchigen HMP | 0.7 |
| Auxiliary agent | Acid catalyst, Jin Shi chemical industry N-1419 | 0.5 |
| Amount to | 100 |
Add saturated polyester resin, butyl glycol ether and No. 150 solvent oils in a reservoir successively and stir, then under agitation titanium dioxide and zinc sulfate is added successively, stir 30 minutes, then be ground to fineness with shredder and be less than 25 microns, then under agitation add aminoresin, HID resin, adhesion promoter and acid catalyst, then stir.
The preparation of embodiment 2 background colour finish compositions
Background colour finish compositions according to following formula preparation vanish system of the present invention:
| Composition | Content (wt%) | |
| Resin | PVDF, eastern fluorine chemical PVDF T-1 | 27.5 |
| Resin | Acrylic resin, DSM CR-204 | 26.5 |
| Resin | Aminoresin, Changchun chemical industry MR-603 | 1.1 |
| Color stuffing | Titanium dioxide, special promise CR-880 | 20.8 |
| Solvent | Isophorone, DEGUSSA | 24.0 |
| Auxiliary agent | Acid catalyst, tosic acid | 0.1 |
| Amount to | 100 |
Acrylic resin in above-mentioned formula is divided into three parts, accounts for about 40% of acrylic resin total amount, about 10% and about 50% respectively; Isophorone is divided into four parts, accounts for about 10% of isophorone total amount respectively, about 15%, about 60% and about 15%.First add the acrylic resin of about 40% amount and the isophorone of about 10% amount in a reservoir successively and stir, titanium dioxide is added subsequently under whipped state, fully stir 30 minutes after reinforced, then carry out being ground to fineness with shredder and be less than 10 microns, after grinding, with the isophorone cleaning shredder of the acrylic resin of about 10% amount and about 15% amount, material be cooled to after merging less than 30 DEG C stand-by.The acrylic resin of about 50% amount and the isophorone of about 60% amount is added in another container, and stir, under whipped state, add PVDF resin subsequently, after interpolation, material dispersion to fineness is less than 30 microns by adjusting rotary speed, and control temperature is no more than 35 DEG C simultaneously.After fineness of materials is less than 30 microns, under low rate mixing, adds aminoresin, the isophorone of about 15% amount and acid catalyst, and stir.Finally the material in two containers is mixed mutually, and stir, obtain background colour finish compositions of the present invention.
The preparation of embodiment 3 texture coating compositions
The coating composition being used as texture paint according to following formula preparation vanish system of the present invention:
| Composition | Content (wt%) | |
| Resin | PVDF resin, kynar500 | 10.0 |
| Resin | Acrylic resin, Tao Shi B44 | 10.0 |
| Color stuffing | Titanium dioxide | 20.0 |
| Solvent | Isophorone | 60.0 |
Acrylic resin in above-mentioned formula is divided into three parts, accounts for about 40% of acrylic resin total amount, about 10% and about 50% respectively; Isophorone is divided into three parts, accounts for about 10% of isophorone total amount, about 15% and about 75% respectively.In a container, first add the acrylic resin of about 40% amount and the isophorone of about 10% amount successively and stir, titanium dioxide is added subsequently under whipped state, fully stir 30 minutes after reinforced, then carry out being ground to fineness with shredder and be less than 10 microns, after grinding, with the isophorone cleaning shredder of the acrylic resin of about 10% amount and about 15% amount, material be cooled to after merging less than 30 DEG C stand-by.The acrylic resin of about 50% amount and the isophorone of about 75% amount is added in another container, and stir, under whipped state, add PVDF resin subsequently, after interpolation, material dispersion to fineness is less than 30 microns by adjusting rotary speed, and control temperature is no more than 35 DEG C simultaneously.Finally the material in two containers is mixed mutually, and stir, obtain background colour finish compositions of the present invention.
Also prepare the texture paint coating composition that color stuffing is respectively iron oxide red, iron oxide yellow and iron oxide black.
The preparation of embodiment 4 clear coat composition
Clear coat composition according to following formula preparation vanish system of the present invention:
| Composition | Content (wt%) | |
| Resin | PVDF resin, Acker agate chemical industry Kynar500 | 31.3 |
| Resin | Acrylic resin, Dow B44 | 19.5 |
| Resin | Acrylic resin, PPG HCM-9851 | 15.6 |
| Solvent | Isophorone, DEGUSSA | 32.5 |
| Auxiliary agent | Vinylformic acid flow agent, Dow Corning F45 | 0.7 |
| Auxiliary agent | Matting agent, DEGUSSA OK500 | 0.4 |
| Amount to | 100 |
Isophorone is divided into two parts, accounts for about 95% and about 5% of isophorone total amount respectively.Add the isophorone of acrylic resin DowB44, acrylic resin PPGHCM-9851 and about 95% amount in a reservoir successively and stir, under whipped state, adding PVDF resin subsequently, being stirred to fineness and being less than 30 microns.Finally add the isophorone of about 5% amount, vinylformic acid flow agent and matting agent, and stir, obtain clear coat composition of the present invention.
The preparation of embodiment 5 substrate sample to be tested
Get standard testing aluminium alloy base plate, utilize roller coating coated with lower coating after surface treatment, be evenly coated on substrate by the paint base composition obtained by embodiment 1, dry in 215 DEG C of bakings subsequently, baking time was 50 seconds.After substrate cooling, be evenly coated in by the background colour finish compositions obtained by embodiment 2 on the paint base composition solidified, dry in 225 DEG C of bakings subsequently, baking time was 50 seconds.After substrate cooling, the texture coating compositions obtained by embodiment 3 is coated on the background colour finish compositions solidified.Be coated in by clear coat composition prepared by embodiment 4 on texture coating compositions, dry in 240 DEG C of bakings subsequently, baking time was 50 seconds, obtained the substrate sample to be tested through coating.
Embodiment 6 performance test
I. ply adhesion
1. select the region of the clean and tidy indefectible and surface imperfection of coatingsurface;
2. with sharp blade vertically, interval 1mm, in aforementioned region internal cutting coating, forms the otch that 10 are about 5cm, and otch should be cut antireflective coating layer completely and to go directly base material;
3. substrate sample is positioned in the hot water of 100 DEG C and soaks 2 hours, dry after taking-up;
4. 3M adhesive tape is placed on otch and is also in place with pointing pressing gently, apply certain pressure and guarantee adhesive tape and coating close contact;
4., after the contact time of 60 seconds of exerting pressure, rapid pull-up adhesive tape makes it and coating stripping;
5. use magnifying glass to examine coating.
If coating sample meets the following conditions, it is qualified to be considered as:
1. notching edge is completely smooth, does not have coating to tilt;
After tested, the aluminum alloy base material sample passes prepared by embodiment 5 is by test.
II. resistance to butanone wiping
Dip butanone with hospital gauze, under the condition of a kgf, with coating, wiping coatingsurface 100 times repeatedly, does not occur that cracking wear defect is qualified.
After tested, the aluminum alloy base material sample passes prepared by embodiment 5 is by test.
III.T-bend tests
By substrate sample bending 180 degree to be tested, a bending is 0T, and two is 1T, and three is 2T, by that analogy.When <=2-3T, bending part coating does not ftracture as qualified.
After tested, the aluminum alloy base material sample passes prepared by embodiment 5 is by test.
IV. accelerated deterioration test
1. substrate sample to be tested is cut to the specification of 150*75mm;
2. put into illumination wavelength be 313nm ultraviolet case irradiate 3000 hours with accelerated deterioration;
3. visual inspection coatingsurface after taking out, complete with coating paint film, without obvious chromatic aberration, use the measurement of luster instrument of BYK company to detect gloss subsequently, detected result shows that gloss retention is greater than 50% for qualified.
After tested, the aluminum alloy base material sample passes prepared by embodiment 5 is by test.
Above test result shows, the coating that vanish system of the present invention is formed can combine with aluminium alloy base plate securely, the coating formed has excellent resistance to wiping, resistance to bending and ageing resistance, and the pattern formed simulates wood grain or marble grain realistically, meets the demands completely.
Claims (15)
1. a coating composition, it solvent comprising PVDF resin, acrylic resin and comprise isophorone.
2. coating composition as claimed in claim 1, wherein based on its gross weight, described coating composition comprises the PVDF resin of 5-15 % by weight.
3. coating composition as claimed in claim 1, wherein based on its gross weight, described coating composition comprises the acrylic resin of 5-15 % by weight.
4. coating composition as claimed in claim 1, wherein the amount ratio of PVDF resin and acrylic resin is 1:0.5-2.
5. coating composition as claimed in claim 1, wherein based on its gross weight, described coating composition comprises the solvent of 40-80 % by weight.
6. coating composition as claimed in claim 1 also comprises color stuffing.
7. a vanish system, it comprises one or more layers coating composition as claimed in claim 1.
8. vanish system as claimed in claim 7, also comprises paint base composition, background colour finish compositions and clear coat composition.
9. vanish system according to claim 8 is coated in the method on base material, it comprises: (1) by basecoat composition on base material and baking-curing, (2) background colour finish compositions to be coated on the paint base composition solidified and baking-curing, (3) by one or more layers coating composition as claimed in claim 1 on the background colour finish compositions solidified, and clear coat composition is coated on coating composition as claimed in claim 1 by (4), and baking-curing.
10. method as claimed in claim 9, the solidification storing temperature wherein in step (1) is 205-230 DEG C, and baking time is 30-70 second.
11. methods as claimed in claim 9, the solidification storing temperature wherein in step (2) is 210-235 DEG C, and baking time is 30-70 second.
12. methods as claimed in claim 9, the solidification storing temperature wherein in step (4) is 230-255 DEG C, and baking time is 30-70 second.
13. methods as claimed in claim 9, wherein said base material comprises metal base.
14. base materials through coating obtained by method according to claim 9.
15. as claimed in claim 14 through the base material of coating, and the wherein said base material through coating comprises metal base.
Priority Applications (2)
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| CN201510689227.6A CN105199496A (en) | 2015-10-21 | 2015-10-21 | Coating composition |
| PCT/CN2016/102644 WO2017067469A1 (en) | 2015-10-21 | 2016-10-20 | Coating composition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510689227.6A CN105199496A (en) | 2015-10-21 | 2015-10-21 | Coating composition |
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| WO (1) | WO2017067469A1 (en) |
Cited By (4)
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| WO2017067469A1 (en) * | 2015-10-21 | 2017-04-27 | Ppg Coatings (Tianjin) Co., Ltd. | Coating composition |
| CN108080231A (en) * | 2017-11-29 | 2018-05-29 | 马鞍山市恒特重工科技有限公司 | A kind of building machinery surface corrosion-resistant loses processing method |
| CN113174176A (en) * | 2021-06-16 | 2021-07-27 | 江苏远松建筑装饰工程有限公司 | Cold-feeling-resistant coating and preparation method thereof, cold-feeling-resistant metal plate and manufacturing method thereof |
| CN115746635A (en) * | 2022-12-10 | 2023-03-07 | 永记造漆工业(嘉兴)有限公司 | Polyvinylidene fluoride coating and preparation method thereof, coating system and application process thereof |
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| CN114075390B (en) * | 2020-08-20 | 2022-05-13 | 海洋化工研究院有限公司 | High seaworthiness heat reflection wave-transparent coating, preparation method and application |
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