CN105602440A - Acrylic acid-polyaniline composite modified polyurethane coating - Google Patents
Acrylic acid-polyaniline composite modified polyurethane coating Download PDFInfo
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- CN105602440A CN105602440A CN201511028444.7A CN201511028444A CN105602440A CN 105602440 A CN105602440 A CN 105602440A CN 201511028444 A CN201511028444 A CN 201511028444A CN 105602440 A CN105602440 A CN 105602440A
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- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
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Abstract
The invention discloses an acrylic acid-polyaniline composite modified polyurethane coating which is prepared from modified polyurethane emulsion, waterborne acrylic emulsion, waterborne polyaniline emulsion, diphenylmethane diisocyanate, nano-zinc oxide, nano-zinc phosphate, aluminum oxide, wollastonite, boron nitride, barium sulfate, aluminum triphosphate, diethyl aluminum phosphinic acid, calcium chloride, N-methyl pyrrolidone, a defoaming agent, a dispersing agent, a wetting agent, a flatting agent, glycerol, 8-hydroxyquinoline, epoxy resin, a silane coupling agent, polyethylene wax and water. The acrylic acid-polyaniline composite modified polyurethane coating is good in water resistance and corrosion resistance, excellent in heat resistance and weather resistance, high in strength, high in adhesive force with a base material and long in service life, and has the certain fire resistance.
Description
Technical field
The present invention relates to polyurethane coating technical field, relate in particular to a kind of acrylic acid-polyaniline composite modified poly-Ammonia ester paint.
Background technology
Polyurethane has wear-resisting, water-fast, resistance to solvent preferably and excellent mechanical performance, at present elastomer,The aspects such as foamed plastics, coating, binder and bio-medical material are applied widely. Polyurethane coatingConventionally be used in leather finish, textile printing and dyeing, paper-making industry, building coating, adhesive, steel moulder's paint etc.Field. Although polyurethane has excellent performance, also there is some limitation in it, for example, and its strandOn hydrophily-CH2OH group easily absorbs water, and causes polyurethane water resistance to decline, serious shadow under water environmentRing corrosion resistance and the service life of polyurethane coating, thereby limit its range of application.
Summary of the invention
The technical problem existing based on background technology, the present invention proposes a kind of acrylic acid-polyaniline composite modifiedPolyurethane coating, its resistance to water and good corrosion resistance, heat resistance and weather resistance excellence, intensity is high simultaneously,With the strong adhesion of ground, and there is certain anti-flammability, long service life.
The composite modified polyurethane coating of a kind of acrylic acid-polyaniline that the present invention proposes, its raw material wraps by weightDraw together following component: modified polyurethane emulsion 30-80 part, aqueous acrylic emulsion 10-25 part, water-based polyphenylAmine emulsion 15-25 part, '-diphenylmethane diisocyanate 5-15 part, nano zine oxide 3-12 part, nanometer phosphorusAcid zinc 5-15 part, aluminium oxide 3-8 part, wollastonite 2-10 part, boron nitride 3-12 part, barium sulfate 2-10Part, aluminium triphosphate 5-8 part, diethyl phosphinic acids aluminium 2-5 part, calcium chloride 2-6 part, N-methylpyrroleAlkane ketone 3-8 part, defoamer 0.1-0.5 part, dispersant 0.5-1 part, wetting agent 0.1-0.5 part, levellingAgent 0.1-0.5 part, glycerine 3-12 part, oxine ketone 2-3.8 part, epoxy resin 3-8 part, siliconAlkane coupling agent 2-6 part, Tissuemat E 1-2.5 part, water 35-50 part.
Preferably, in its raw material, modified polyurethane emulsion, aqueous acrylic emulsion, aqueous polyanion emulsionWeight ratio be 45-55:17-23:18-21.
Preferably, in its raw material, nano zine oxide, nanometer zinc phosphate, aluminium oxide, wollastonite, boron nitride,The weight ratio of barium sulfate, aluminium triphosphate, diethyl phosphinic acids aluminium, calcium chloride is 7-11:6.5-10:5-7:5.5-8：6-10：5-9：6-8：3.2-4：4-5.2。
Preferably, in its raw material, the weight ratio of calcium chloride, glycerine is 3-5:7-10.
Preferably, its raw material comprises following component by weight: modified polyurethane emulsion 48-52 part, water-basedAcrylic emulsion 20-22 part, aqueous polyanion emulsion 19-21 part, '-diphenylmethane diisocyanate 8-12 part,Nano zine oxide 8-10 part, nanometer zinc phosphate 8-9 part, aluminium oxide 6.2-6.8 part, wollastonite 7-7.6 part,Boron nitride 7.2-8 part, barium sulfate 6.5-7.2 part, aluminium triphosphate 6.3-7 part, diethyl phosphinic acids aluminium3.5-4 part, calcium chloride 4.3-5 part, 1-METHYLPYRROLIDONE 4.2-4.9 part, defoamer 0.25-0.32 part,Dispersant 0.7-1 part, wetting agent 0.3-0.35 part, levelling agent 0.28-0.36 part, glycerine 8-10 part,Oxine ketone 2.6-3.2 part, epoxy resin 4.2-5 part, silane coupler 3.2-4 part, polyethyleneWax 1.6-2.1 part, water 40-46 part.
Preferably, its raw material comprises following component by weight: 50 parts of modified polyurethane emulsions, aqueous acrylamide21 parts of yogurt liquid, 20 parts of aqueous polyanion emulsions, 10 parts of '-diphenylmethane diisocyanates, nano zine oxide8.6 parts, 8.7 parts of nanometer zinc phosphates, 6.5 parts, aluminium oxide, 7.3 parts of wollastonites, 7.6 parts of boron nitride, sulphur7 parts of acid barium, 6.5 parts of aluminium triphosphates, 3.8 parts, diethyl phosphinic acids aluminium, 4.7 parts, calcium chloride, N-first4.8 parts of base pyrrolidones, 0.3 part of defoamer, 0.8 part of dispersant, 0.32 part of wetting agent, levelling agent 0.3Part, 8.6 parts of glycerine, 3 parts of oxine ketone, 4.5 parts of epoxy resin, 3.6 parts of silane couplers,2 parts of Tissuemat Es, 45 parts, water.
Preferably, described modified polyurethane emulsion is prepared according to following technique: by weight by 15-25Part methyl methacrylate and 5-12 part 2-Isooctyl acrylate monomer mix, and then add the different Buddhist of 10-20 partThat ketone vulcabond, 15-25 part polyoxypropyleneglycol, 2-12 part poly (propylene carbonate) glycol, 0.5-1Part trimethylolpropane, 2-3 part dihydroxy half ester and 1-5 part six hydrogen-1,3,5-tri-(ethoxy)-s-triazine,At 65-75 DEG C, react 0.8-2.5h, then add 1-1.5 part hydroxyethyl methacrylate to stir anti-Answer 20-35min, regulation system is after neutrality, to add α-thiazolinyl that 80-100 part mass fraction is 0.2-0.5%The sodium sulfonate aqueous solution, then add 3-5 part methacrylic acid, 0.2-1 part after adding 0.2-0.5 part initator2-Isooctyl acrylate monomer, 2-5 part trifluoroethyl methacrylate and 2-3.5 part Silane coupling reagent KH-570,Stirring reaction 2-3.5h, the pH of regulation system adds 1-2.5 part aziridine, stirring reaction after alkalescence50-80min obtains described modified polyurethane emulsion.
Preferably, described modified polyurethane emulsion is prepared according to following technique: by weight by 20 parts of firstBase methyl acrylate and 10 parts of 2-Isooctyl acrylate monomers mix, and then add 16 parts of isophorones two differentCyanate, 20 parts of polyoxypropyleneglycols, 10 parts of poly (propylene carbonate) glycol, 0.65 part of trimethylolpropane,2.6 parts of dihydroxy half esters and 3.2 part of six hydrogen-1,3,5-tri-(ethoxy)-s-triazine carries out anti-at 70 DEG CAnswer 2h, then add 1.2 parts of hydroxyethyl methacrylate stirring reaction 30min, after regulation system is neutralityAdd α-olefin sulfonic acid sodium water solution that 95 parts of mass fractions are 0.35%, then add after 0.35 part of initatorAdd 4 parts of methacrylic acids, 0.6 part of 2-Isooctyl acrylate monomer, 3.2 parts of trifluoroethyl methacrylates and 3Part Silane coupling reagent KH-570, stirring reaction 3.2h, the pH of regulation system adds 2.2 parts of nitrogen after alkalescenceThe third pyridine, stirring reaction 60min obtains described modified polyurethane emulsion.
Preferably, described initator azodiisobutyronitrile, ammonium persulfate, sodium peroxydisulfate, benzoyl peroxideIn one or more mixture.
The composite modified polyurethane coating of acrylic acid-polyaniline of the present invention can be according to conventional polyurethane waterProperty coating is preparation technology be prepared from.
In the present invention, select aqueous acrylic emulsion, aqueous polyanion emulsion and modified polyurethane emulsion to joinCooperation is film forming matter, and after three coordinates according to aforementioned proportion, compatibility is good, and performance is collaborative, gives coatingWeatherability and the heat resistance of coating when excellent corrosion resistance, are improved; In optimal way, poly-in modificationIn the preparation process of ammonia ester emulsion, IPDI, polyoxypropyleneglycol, poly-carbon are selectedThe sub-propyl ester glycol of acid, trimethylolpropane, dihydroxy half ester and six hydrogen-1,3,5-tri-(ethoxy)-s-triazineFor raw material, thereby in polyaminoester emulsion, introduce poly (propylene carbonate) glycol, given the wear-resisting of coating excellenceProperty, weatherability and certain anti-flammability, introduced six hydrogen-1, and 3,5-tri-(ethoxy)-s-triazine has improved bodyThe crosslink density of system gives coating certain antibiotic property simultaneously, has improved the corrosion resistance of coating, adds firstAfter base hydroxy-ethyl acrylate, it can play crosslinked effect, react with the isocyano in system on the one hand,Even with the methacrylic acid adding, 2-Isooctyl acrylate monomer, trifluoroethyl methacrylate and silane on the one handTwo keys in connection agent KH-570 have produced polymerization, have obtained acrylate modified polyurethane, mixed with aziridineAfter closing, the carboxyl in acrylate modified polyurethane is easy to the aziridine generation cross-linking reaction of open loop, obtainsModified polyurethane emulsion, used as the film forming matter of system, on the one hand, owing to having introduced fluorine in systemAtom and silicon atom, improved heat resistance, corrosion resistance and the resistance to water of coating, on the other hand, and because of nitrogen thirdPyridine has occurred to react with the carboxylate radical in polyurethane molecular, has eliminated part hydrophilic radical, and produces between strandGive birth to crosslinkedly, formed dense coating, sealed the hydrophilic radical in aqueous dispersion, reduced hydroneInfiltrate, increased electrolytical ionization difficulty, hindered the intrusion of the corrosive medium such as salt fog, oxygen simultaneously,Slow down corrosion of metal, improved resistance to water, solvent resistance and the corrosion resistance of coating, improved simultaneouslyHot strength, elongation at break and the hardness of coating; Nano zine oxide, nanometer zinc phosphate, aluminium oxide, sulphurAcid barium, aluminium triphosphate, diethyl phosphinic acids aluminium, epoxy resin coordinate and add in system, have collaborative workWith, significantly improve the corrosion resistance of coating, after coordinating with wollastonite, boron nitride, further improve paintingThe corrosion resistance of material has improved heat resistance and the resistance to water of coating simultaneously; Calcium chloride adds in system and the third threeAlcohol has concertedness, has significantly improved the anti-freezing property of coating.
Detailed description of the invention
Below, by specific embodiment, technical scheme of the present invention is elaborated.
Embodiment 1
The composite modified polyurethane coating of a kind of acrylic acid-polyaniline that the present invention proposes, its raw material wraps by weightDraw together following component: 80 parts of modified polyurethane emulsions, 10 parts of aqueous acrylic emulsions, aqueous polyanion emulsion25 parts, 5 parts of '-diphenylmethane diisocyanates, 12 parts of nano zine oxides, 15 parts of nanometer zinc phosphates, oxidation8 parts, aluminium, 2 parts of wollastonites, 12 parts of boron nitride, 2 parts, barium sulfate, 8 parts of aluminium triphosphates, diethyl2 parts, phosphonic acids aluminium, 6 parts, calcium chloride, 3 parts of 1-METHYLPYRROLIDONEs, 0.5 part of defoamer, dispersant 0.5Part, 0.5 part of wetting agent, 0.1 part of levelling agent, 12 parts of glycerine, 2 parts of oxine ketone, epoxy tree8 parts, fat, 2 parts of silane couplers, 2.5 parts of Tissuemat Es, 35 parts, water.
Embodiment 2
The composite modified polyurethane coating of a kind of acrylic acid-polyaniline that the present invention proposes, its raw material wraps by weightDraw together following component: 30 parts of modified polyurethane emulsions, 25 parts of aqueous acrylic emulsions, aqueous polyanion emulsion15 parts, 15 parts of '-diphenylmethane diisocyanates, 3 parts of nano zine oxides, 5 parts of nanometer zinc phosphates, aluminium oxide3 parts, 10 parts of wollastonites, 3 parts of boron nitride, 10 parts, barium sulfate, 5 parts of aluminium triphosphates, diethyl time phosphine5 parts, aluminium of acid, 2 parts, calcium chloride, 8 parts of 1-METHYLPYRROLIDONEs, 0.1 part of defoamer, 1 part of dispersant,0.1 part of wetting agent, 0.5 part of levelling agent, 3 parts of glycerine, 3.8 parts of oxine ketone, epoxy resin 3Part, 6 parts of silane couplers, 1 part of Tissuemat E, 50 parts, water.
Embodiment 3
The composite modified polyurethane coating of a kind of acrylic acid-polyaniline that the present invention proposes, its raw material wraps by weightDraw together following component: 52 parts of modified polyurethane emulsions, 20 parts of aqueous acrylic emulsions, aqueous polyanion emulsion21 parts, 8 parts of '-diphenylmethane diisocyanates, 10 parts of nano zine oxides, 8 parts of nanometer zinc phosphates, aluminium oxide6.8 parts, 7 parts of wollastonites, 8 parts of boron nitride, 6.5 parts, barium sulfate, 6.3 parts of aluminium triphosphates, diethyl4 parts, phosphinic acids aluminium, 4.3 parts, calcium chloride, 4.9 parts of 1-METHYLPYRROLIDONEs, 0.25 part of defoamer, dispersion1 part of agent, 0.3 part of wetting agent, 0.36 part of levelling agent, 8 parts of glycerine, 3.2 parts of oxine ketone,4.2 parts of epoxy resin, 4 parts of silane couplers, 1.6 parts of Tissuemat Es, 46 parts, water;
Wherein, described modified polyurethane emulsion is prepared according to following technique: by weight by 25 parts of methylMethyl acrylate and 5 parts of 2-Isooctyl acrylate monomers mix, and then add 20 parts of isophorone two isocyanic acidsEster, 15 parts of polyoxypropyleneglycols, 12 parts of poly (propylene carbonate) glycol, 0.5 part of trimethylolpropane, 3Part dihydroxy half ester and 1 part of six hydrogen-1,3,5-tri-(ethoxy)-s-triazine reacts 0.8h at 75 DEG C,Then add 1.5 parts of hydroxyethyl methacrylate stirring reaction 20min, regulation system is to add 100 after neutralityα-olefin sulfonic acid sodium water solution that part mass fraction is 0.2%, then add 0.2 part of sodium peroxydisulfate and 0.3 part of mistakeAfter BP, add 3 parts of methacrylic acids, 1 part of 2-Isooctyl acrylate monomer, 2 parts of methacrylic acid trifluorosEthyl ester and 3.5 parts of Silane coupling reagent KH-570s, stirring reaction 2h, the pH of regulation system adds after alkalescence2.5 parts of aziridine, stirring reaction 50min obtains described modified polyurethane emulsion.
Embodiment 4
The composite modified polyurethane coating of a kind of acrylic acid-polyaniline that the present invention proposes, its raw material wraps by weightDraw together following component: 48 parts of modified polyurethane emulsions, 22 parts of aqueous acrylic emulsions, aqueous polyanion emulsion19 parts, 12 parts of '-diphenylmethane diisocyanates, 8 parts of nano zine oxides, 9 parts of nanometer zinc phosphates, aluminium oxide6.2 parts, 7.6 parts of wollastonites, 7.2 parts of boron nitride, 7.2 parts, barium sulfate, 7 parts of aluminium triphosphates, diethyl3.5 parts, base phosphinic acids aluminium, 5 parts, calcium chloride, 4.2 parts of 1-METHYLPYRROLIDONEs, defoamer 0.32 part, point0.7 part of powder, 0.35 part of wetting agent, 0.28 part of levelling agent, 10 parts of glycerine, oxine ketone 2.6Part, 5 parts of epoxy resin, 3.2 parts of silane couplers, 2.1 parts of Tissuemat Es, 40 parts, water;
Wherein, described modified polyurethane emulsion is prepared according to following technique: by weight by 15 parts of methylMethyl acrylate and 12 parts of 2-Isooctyl acrylate monomers mix, and then add 10 parts of isophorone two isocyanidesAcid esters, 25 parts of polyoxypropyleneglycols, 2 parts of poly (propylene carbonate) glycol, 1 part of trimethylolpropane, 2 partsDihydroxy half ester and 5 part of six hydrogen-1,3,5-tri-(ethoxy)-s-triazine reacts 2.5h at 65 DEG C,Then add 1 part of hydroxyethyl methacrylate stirring reaction 35min, regulation system is to add 80 parts after neutralityMass fraction is α-olefin sulfonic acid sodium water solution of 0.5%, then adds 0.1 part of azodiisobutyronitrile and 0.1 partAfter ammonium persulfate, add 5 parts of methacrylic acids, 0.2 part of 2-Isooctyl acrylate monomer, 5 parts of methacrylic acid trifluorosEthyl ester and 2 parts of Silane coupling reagent KH-570s, stirring reaction 3.5h, the pH of regulation system adds 1 after alkalescencePart aziridine, stirring reaction 80min obtains described modified polyurethane emulsion.
Embodiment 5
The composite modified polyurethane coating of a kind of acrylic acid-polyaniline that the present invention proposes, is characterized in that, it is formerMaterial comprises following component by weight: 50 parts of modified polyurethane emulsions, 21 parts of aqueous acrylic emulsions, water20 parts of Polyaniline emulsions of property, 10 parts of '-diphenylmethane diisocyanates, 8.6 parts of nano zine oxides, nanometer phosphorus7 parts, 8.7 parts, zinc of acid, 6.5 parts, aluminium oxide, 7.3 parts of wollastonites, 7.6 parts of boron nitride, barium sulfate, three6.5 parts of poly aluminium phosphates, 3.8 parts, diethyl phosphinic acids aluminium, 4.7 parts, calcium chloride, 1-METHYLPYRROLIDONE 4.8Part, 0.3 part of defoamer, 0.8 part of dispersant, 0.32 part of wetting agent, 0.3 part of levelling agent, glycerine 8.6Part, 3 parts of oxine ketone, 4.5 parts of epoxy resin, 3.6 parts of silane couplers, 2 parts of Tissuemat Es,45 parts, water;
Wherein, described modified polyurethane emulsion is prepared according to following technique: by weight by 20 parts of methylMethyl acrylate and 10 parts of 2-Isooctyl acrylate monomers mix, and then add 16 parts of isophorone two isocyanidesAcid esters, 20 parts of polyoxypropyleneglycols, 10 parts of poly (propylene carbonate) glycol, 0.65 part of trimethylolpropane,2.6 parts of dihydroxy half esters and 3.2 part of six hydrogen-1,3,5-tri-(ethoxy)-s-triazine carries out anti-at 70 DEG CAnswer 2h, then add 1.2 parts of hydroxyethyl methacrylate stirring reaction 30min, after regulation system is neutralityAdd α-olefin sulfonic acid sodium water solution that 95 parts of mass fractions are 0.35%, then add 0.35 part of azo two differentAfter butyronitrile, add 4 parts of methacrylic acids, 0.6 part of 2-Isooctyl acrylate monomer, 3.2 parts of methacrylic acid trifluoro secondEster and 3 parts of Silane coupling reagent KH-570s, stirring reaction 3.2h, the pH of regulation system adds 2.2 after alkalescencePart aziridine, stirring reaction 60min obtains described modified polyurethane emulsion.
The above, be only preferably detailed description of the invention of the present invention, but not office of protection scope of the present inventionBe limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in, according to thisThe technical scheme of invention and inventive concept thereof are equal to replaces or changes, and all should be encompassed in protection of the present inventionWithin scope.
Claims (9)
1. the composite modified polyurethane coating of acrylic acid-polyaniline, is characterized in that, its raw material by weightPart comprises following component: modified polyurethane emulsion 30-80 part, aqueous acrylic emulsion 10-25 part, water-basedPolyaniline emulsion 15-25 part, '-diphenylmethane diisocyanate 5-15 part, nano zine oxide 3-12 part, receiveRice trbasic zinc phosphate 5-15 part, aluminium oxide 3-8 part, wollastonite 2-10 part, boron nitride 3-12 part, barium sulfate2-10 part, aluminium triphosphate 5-8 part, diethyl phosphinic acids aluminium 2-5 part, calcium chloride 2-6 part, N-methylPyrrolidones 3-8 part, defoamer 0.1-0.5 part, dispersant 0.5-1 part, wetting agent 0.1-0.5 part,Levelling agent 0.1-0.5 part, glycerine 3-12 part, oxine ketone 2-3.8 part, epoxy resin 3-8 part,Silane coupler 2-6 part, Tissuemat E 1-2.5 part, water 35-50 part.
2. the composite modified polyurethane coating of acrylic acid-polyaniline according to claim 1, is characterized in that,In its raw material, the weight ratio of modified polyurethane emulsion, aqueous acrylic emulsion, aqueous polyanion emulsion is45-55：17-23：18-21。
3. according to the composite modified polyurethane coating of acrylic acid-polyaniline described in claim 1 or 2, its featureBe, in its raw material, nano zine oxide, nanometer zinc phosphate, aluminium oxide, wollastonite, boron nitride, sulfuric acidThe weight ratio of barium, aluminium triphosphate, diethyl phosphinic acids aluminium, calcium chloride is 7-11:6.5-10:5-7:5.5-8：6-10：5-9：6-8：3.2-4：4-5.2。
4. according to the composite modified polyurethane coating of acrylic acid-polyaniline described in any one in claim 1-3,It is characterized in that, in its raw material, the weight ratio of calcium chloride, glycerine is 3-5:7-10.
5. according to the composite modified polyurethane coating of acrylic acid-polyaniline described in any one in claim 1-4,It is characterized in that, its raw material comprises following component by weight: modified polyurethane emulsion 48-52 part, water-basedAcrylic emulsion 20-22 part, aqueous polyanion emulsion 19-21 part, '-diphenylmethane diisocyanate 8-12 part,Nano zine oxide 8-10 part, nanometer zinc phosphate 8-9 part, aluminium oxide 6.2-6.8 part, wollastonite 7-7.6 part,Boron nitride 7.2-8 part, barium sulfate 6.5-7.2 part, aluminium triphosphate 6.3-7 part, diethyl phosphinic acids aluminium3.5-4 part, calcium chloride 4.3-5 part, 1-METHYLPYRROLIDONE 4.2-4.9 part, defoamer 0.25-0.32Part, dispersant 0.7-1 part, wetting agent 0.3-0.35 part, levelling agent 0.28-0.36 part, glycerine 8-10Part, oxine ketone 2.6-3.2 part, epoxy resin 4.2-5 part, silane coupler 3.2-4 part, poly-Ethylene waxes 1.6-2.1 part, water 40-46 part.
6. according to the composite modified polyurethane coating of acrylic acid-polyaniline described in any one in claim 1-5,It is characterized in that, its raw material comprises following component by weight: 50 parts of modified polyurethane emulsions, aqueous acrylamide21 parts of yogurt liquid, 20 parts of aqueous polyanion emulsions, 10 parts of '-diphenylmethane diisocyanates, nano zine oxide8.6 parts, 8.7 parts of nanometer zinc phosphates, 6.5 parts, aluminium oxide, 7.3 parts of wollastonites, 7.6 parts of boron nitride,7 parts, barium sulfate, 6.5 parts of aluminium triphosphates, 3.8 parts, diethyl phosphinic acids aluminium, 4.7 parts, calcium chloride, N-4.8 parts of methyl pyrrolidones, 0.3 part of defoamer, 0.8 part of dispersant, 0.32 part of wetting agent, levelling agent0.3 part, 8.6 parts of glycerine, 3 parts of oxine ketone, 4.5 parts of epoxy resin, silane coupler 3.6Part, 2 parts of Tissuemat Es, 45 parts, water.
7. according to the composite modified polyurethane coating of acrylic acid-polyaniline described in any one in claim 1-6,It is characterized in that, described modified polyurethane emulsion is prepared according to following technique: by weight by 15-25Part methyl methacrylate and 5-12 part 2-Isooctyl acrylate monomer mix, and then add 10-20 part differentPhorone vulcabond, 15-25 part polyoxypropyleneglycol, 2-12 part poly (propylene carbonate) glycol, 0.5-1Part trimethylolpropane, 2-3 part dihydroxy half ester and 1-5 part six hydrogen-1,3,5-tri-(ethoxy)-s-triazine,At 65-75 DEG C, react 0.8-2.5h, then add 1-1.5 part hydroxyethyl methacrylate to stir anti-Answer 20-35min, regulation system is after neutrality, to add α-thiazolinyl that 80-100 part mass fraction is 0.2-0.5%The sodium sulfonate aqueous solution, then add 3-5 part methacrylic acid, 0.2-1 part after adding 0.2-0.5 part initator2-Isooctyl acrylate monomer, 2-5 part trifluoroethyl methacrylate and 2-3.5 part Silane coupling reagent KH-570,Stirring reaction 2-3.5h, the pH of regulation system adds 1-2.5 part aziridine, stirring reaction after alkalescence50-80min obtains described modified polyurethane emulsion.
8. according to the composite modified polyurethane coating of acrylic acid-polyaniline described in any one in claim 1-7,It is characterized in that, described modified polyurethane emulsion is prepared according to following technique: by weight by 20 parts of firstBase methyl acrylate and 10 parts of 2-Isooctyl acrylate monomers mix, and then add 16 parts of isophorones two differentCyanate, 20 parts of polyoxypropyleneglycols, 10 parts of poly (propylene carbonate) glycol, 0.65 part of trihydroxy methyl thirdAlkane, 2.6 parts of dihydroxy half esters and 3.2 part of six hydrogen-1,3,5-tri-(ethoxy)-s-triazine enters at 70 DEG CRow reaction 2h, then adds 1.2 parts of hydroxyethyl methacrylate stirring reaction 30min, during regulation system isAfter property, add α-olefin sulfonic acid sodium water solution that 95 parts of mass fractions are 0.35%, then add 0.35 part of initiationAfter agent, add 4 parts of methacrylic acids, 0.6 part of 2-Isooctyl acrylate monomer, 3.2 parts of methacrylic acid trifluoro secondEster and 3 parts of Silane coupling reagent KH-570s, stirring reaction 3.2h, the pH of regulation system adds 2.2 after alkalescencePart aziridine, stirring reaction 60min obtains described modified polyurethane emulsion.
9. according to the composite modified polyurethane coating of acrylic acid-polyaniline described in claim 7 or 8, its feature existsIn, the one in described initator azodiisobutyronitrile, ammonium persulfate, sodium peroxydisulfate, benzoyl peroxideOr multiple mixture.
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| CN106833344A (en) * | 2016-12-13 | 2017-06-13 | 苏州赛斯德工程设备有限公司 | A kind of water nano anticorrosive paint and preparation method thereof |
| CN107868606A (en) * | 2017-11-30 | 2018-04-03 | 明光市裕阳新材料有限公司 | A kind of fire-retardant environmental type coating and preparation method thereof |
| CN110922841A (en) * | 2019-11-25 | 2020-03-27 | 和县明生环保材料有限责任公司 | Preparation method of hydrophobic exterior wall coating |
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| CN114163909A (en) * | 2021-12-10 | 2022-03-11 | 无锡畅宏科技有限公司 | Water-based antistatic peelable glue and coating and application thereof |
| CN114574065A (en) * | 2022-03-09 | 2022-06-03 | 无锡市造漆厂有限公司 | Long-life polyurethane acrylic coating and preparation method thereof |
| CN114853975A (en) * | 2022-06-17 | 2022-08-05 | 广州海豚新材料有限公司 | UV-cured water-based silicon-containing polyurethane and preparation method thereof |
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