CN105153836A - Water resistance and high-temperature resistance polyvinyl acetate emulsion coating - Google Patents
Water resistance and high-temperature resistance polyvinyl acetate emulsion coating Download PDFInfo
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Abstract
The invention discloses a water resistance and high-temperature resistance polyvinyl acetate emulsion coating which is prepared from raw materials comprising polyvinyl acetate emulsion, organosilicon-modified acrylate mulsion, nano alumina sol, silicon dioxide, hexamethyldisilazane, organo-modified montamorillonite, expanded vermiculite, nano calcium carbonate, rutile titanium dioxide, ferric oxide, nano silicon nitride, nano silicon carbide, polyarmide fibers, aluminum hydroxide, zinc borate, hexamethylene diisocyanate, 2-hydroxyethyl methacrylate phosphate, cobalt naphthenate, triethylene tetramine, coalescing agents, thickening agents, preservatives, antifreeze agents and deionized water. The water resistance and high-temperature resistance polyvinyl acetate emulsion coating is good in water resistance and high-temperature resistance, good in adhesive force with base materials and high in adhesive strength.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of water resistant, high temperature resistant polyvinyl acetate emulsion coating.
Background technology
Coating refers to and is applied to body surface and the general name forming the material of tough and tensile protective membrane.Along with the development of society, coating is in occupation of more and more consequence in the life of people, and application is also more and more extensive, and at present, people, beyond the health environment-friendly performance paying close attention to coating and decorate properties, have also more and more paid close attention to the functional of coating.
Polyvinyl acetate emulsion is commonly called as " white glue with vinyl ", have with low cost, polymerization technique is comparatively simple, nontoxic, tasteless, odorless, water white transparency, and there is good bonding, fast light, the not easily performance such as aging, be widely used in the various fields such as building coating, bonding wood materials, sheet processing, textile printing and dyeing, modified cement, glass processing and house decoration at present.But polyvinyl acetate emulsion also also exists the shortcomings such as poor water resistance, heat creep resistance be poor.After polyvinyl acetate emulsion glued membrane soaks under high humidity atmosphere or in water, easily water suction and bonding strength sharply decline.In order to make polyvinyl acetate emulsion be applied in different fields, people carry out modification to it usually, if blended, copolymerization, crosslinked, protective colloid modification etc. are to meet use properties.Along with polyvinyl acetate emulsion is in the widespread use of the industries such as top-grade furniture, automobile interior trim, top fabric, people have had higher requirement to its water tolerance, thermotolerance, asepsis environment-protecting performance, and current method of modifying effect is not still very desirable.Therefore develop a kind of water-tolerant, the polyvinyl acetate emulsion coating of resistance to elevated temperatures excellence is gradually in trend.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of water resistant, high temperature resistant polyvinyl acetate emulsion coating, its water-tolerant, resistance to elevated temperatures is excellent, and good with the sticking power of base material, cohesive strength is high.
A kind of water resistant, high temperature resistant polyvinyl acetate emulsion coating that the present invention proposes, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 10-30 part, nano alumina sol 3-10 part, silicon-dioxide 5-15 part, hexamethyldisilazane 5-10 part, organic modification montmonrillonite 3-12 part, expanded vermiculite 2-10 part, nano-calcium carbonate 3-10 part, Rutile type Titanium Dioxide 3-8 part, ferric oxide 1-3 part, nano-silicon nitride 1-5 part, nanometer silicon carbide 3-10 part, tynex 2-5 part, aluminium hydroxide 0.2-1.5 part, zinc borate 1-1.8 part, hexamethylene diisocyanate 2-5.5 part, HEMA phosphoric acid ester 1.2-2.5 part, cobalt naphthenate 0.1-0.8 part, triethylene tetramine 0.1-0.5 part, film coalescence aid 8-15 part, thickening material 0.5-1.8 part, sanitas 0.2-1 part, antifreezing agent 0.1-0.5 part, deionized water 50-70 part.
Preferably, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 20-25 part, nano alumina sol 6-9 part, silica 1 0-15 part, hexamethyldisilazane 8-9 part, organic modification montmonrillonite 7-10 part, expanded vermiculite 6-8 part, nano-calcium carbonate 7-8 part, Rutile type Titanium Dioxide 5-7 part, ferric oxide 1.9-2.3 part, nano-silicon nitride 2.8-3.5 part, nanometer silicon carbide 7-8 part, tynex 3-3.6 part, aluminium hydroxide 1-1.4 part, zinc borate 1.2-1.5 part, hexamethylene diisocyanate 3.5-4.2 part, HEMA phosphoric acid ester 1.8-2.2 part, cobalt naphthenate 0.5-0.7 part, triethylene tetramine 0.3-0.35 part, film coalescence aid 10-12 part, thickening material 0.9-1.3 part, sanitas 0.7-0.9 part, antifreezing agent 0.3-0.35 part, deionized water 65-70 part.
Preferably, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 22 parts, nano alumina sol 7 parts, silica 12 parts, hexamethyldisilazane 8.5 parts, organic modification montmonrillonite 8 parts, expanded vermiculite 7 parts, nano-calcium carbonate 7.6 parts, Rutile type Titanium Dioxide 5.3 parts, ferric oxide 2 parts, nano-silicon nitride 3.2 parts, nanometer silicon carbide 7.6 parts, tynex 3.2 parts, 1.3 parts, aluminium hydroxide, zinc borate 1.5 parts, hexamethylene diisocyanate 4 parts, HEMA phosphoric acid ester 2 parts, cobalt naphthenate 0.6 part, triethylene tetramine 0.35 part, film coalescence aid 12 parts, thickening material 1 part, sanitas 0.8 part, antifreezing agent 0.3 part, deionized water 65 parts.
Preferably, described silicon-dioxide is improved silica; Described improved silica is prepared according to following technique: added by tetraethoxy in dehydrated alcohol and be mixed with the solution that massfraction is 30-45wt%, the pH value adding ammoniacal liquor regulator solution is 8-9, stir 20-35min, then the hydrochloric acid stirring 20-50min that massfraction is 10-25wt% is added, wherein, the volume of hydrochloric acid is the 15-30% of tetraethoxy volume, and adding ammoniacal liquor adjust ph is 9-10, and then still aging 5-10h obtains material A; To add in hexanaphthene after material A drying, pulverizing, then hexamethyldisilazane is added, wherein, the weight ratio of material A and hexamethyldisilazane is 1:1.2-1.5, the volume ratio of material A and hexanaphthene is 1:1-2, at 55-65 DEG C of reaction 6-10h after stirring, after reaction terminates, obtain improved silica through filtration, washing, drying.
Preferably, described silicon-dioxide is improved silica; Described improved silica is prepared according to following technique: added by tetraethoxy in dehydrated alcohol and be mixed with the solution that massfraction is 40wt%, the pH value adding ammoniacal liquor regulator solution is 8, stir 25min, then the hydrochloric acid stirring 30min that massfraction is 20wt% is added, wherein, the volume of hydrochloric acid is 25% of tetraethoxy volume, and adding ammoniacal liquor adjust ph is 10, and then still aging 8h obtains material A; To add in hexanaphthene after material A drying, pulverizing, then hexamethyldisilazane is added, wherein, the weight ratio of material A and hexamethyldisilazane is 1:1.3, the volume ratio of material A and hexanaphthene is 1:1.5, at 60 DEG C of reaction 8h after stirring, after reaction terminates, obtain improved silica through filtration, washing, drying; In the preparation process of improved silica, hexamethyldisilazane is utilized to carry out modification to silicon-dioxide, hexamethyldisilazane can be grafted on the surface of silicon-dioxide, silicon-dioxide is made to become hydrophobic structure, join in system, improve the hydrophobic performance of coating, improve the water tolerance of coating.
Preferably, the properties-correcting agent that organic modification montmonrillonite uses is silane coupling agent KH-560, one or more mixture in Silane coupling reagent KH-570, silane resin acceptor kh-550, silane coupling agent ND-43, silane coupling agent KH-791, silane coupling A-151.
Preferably, the median size of described nano-calcium carbonate is 15-30nm; The median size of nano-silicon nitride is 20-40nm; The median size of nanometer silicon carbide is 10-35nm.
Preferably, described film coalescence aid is one or more the mixture in 2-amino-2-methyl-1-propanol, alcohol ester 12, butyl glycol ether, propandiol butyl ether.
Preferably, described thickening material is one or more the mixture in carboxymethyl cellulose, Natvosol, polyvinyl alcohol.
Preferably, described sanitas is one or more the mixture in Sodium hexametaphosphate 99, Sodium Benzoate, Kathon CG, Sodium dodecylbenzene sulfonate.
Preferably, described antifreezing agent is one or more the mixture in methyl alcohol, ethanol, polyoxyethylene glycol, glycerol, butyleneglycol, Virahol, propylene glycol.
Each raw material Paint preparation technology conveniently can mix and forms by water resistant, high temperature resistant polyvinyl acetate emulsion coating of the present invention.
In the present invention, have selected polyvinyl acetate emulsion as main film forming substance, and cooperation with the addition of organosilicon-modified acrylate emulsion as auxiliary film forming matter, main filmogen coordinates with auxiliary film forming matter, maintaining polyvinyl acetate emulsion ageing resistance, sunproof while, improve the defects such as the lower temperature resistance of coating, creep resistance and yellowing resistance, improve the weathering resistance of coating, nano alumina sol water white transparency, add in system, good with the consistency of filmogen, when not affecting system character and viscosity, significantly improve the hardness of coating, with organic modification montmonrillonite, expanded vermiculite, nano-calcium carbonate, Rutile type Titanium Dioxide, ferric oxide, nano-silicon nitride, nanometer silicon carbide, tynex, aluminium hydroxide, zinc borate coordinates, effectively reduce the film-forming temperature of filmogen, improve the thermotolerance of coating simultaneously, water tolerance, erosion resistance and flame retardant resistance, wherein, nano-silicon nitride, nanometer silicon carbide two kinds of nanoparticles cooperatively interact, at high temperature composite particles can be formed, cross-linked network is become with other material shape, increase substantially the high thermal resistance of coating, hexamethyldisilazane joins in system, and it with the hydroxyl generation graft reaction in system, can improve the dispersiveness of each filler on the one hand, improves the hydrophobicity of coating on the other hand, hexamethylene diisocyanate adds in system, with hexamethyldisilazane, there is synergy, on the one hand, can occur crosslinked with the hydroxyl in system, improve the dispersiveness of each raw material, eliminate the wetting ability of hydroxyl simultaneously, improve the water tolerance of coating, coordinate the cohesive strength that improve coating with cobalt naphthenate on the other hand, HEMA phosphoric acid ester has the effect of adhesion promoter and coupling agent, add in system, good attachment, binding function are revealed to each stock chart, improve the adhesive property of coating, coordinate with aluminium hydroxide, zinc borate, give the flame retardant resistance of coating excellence.
Carry out Performance Detection to water resistant, high temperature resistant polyvinyl acetate emulsion coating of the present invention, its cohesive strength is 45-50MPa, and its cohesive strength known is high; In 20 DEG C of water, soak 12d without exception, prove its water-tolerant; Resistance to 150 DEG C of 15h are without exception, prove that its resistance to elevated temperatures is excellent.
Embodiment
In a particular embodiment, a kind of water resistant, high temperature resistant polyvinyl acetate emulsion coating that the present invention proposes, in its raw material, the weight part of polyvinyl acetate emulsion can be 100 parts; The weight part of organosilicon-modified acrylate emulsion can be 10,12,13,15,16,16.3,18,19,19.3,21,23,24,25,26,26.3,27,28,29,29.3,30 parts; The weight part of nano alumina sol can be 3,4,5,6,6.3,7,8,8.5,9,9.3,10 parts; The weight part of silicon-dioxide can be 5,6,7,8,8.5,9,9.3,10,10.6,11,11.3,12,12.6,13,13.4,14,14.6,15 parts; The weight part of hexamethyldisilazane can be 5,6,7,8,8.5,9,9.3,10 parts; The weight part of organic modification montmonrillonite can be 3,4,5,5.3,6,6.3,7,8,8.5,9,9.3,10,10.6,11,11.2,12 parts; The weight part of expanded vermiculite can be 2,3,4,5,5.6,6,6.3,7,8,8.5,9,9.3,10 parts; The weight part of nano-calcium carbonate can be 3,4,5,6,6.3,7,8,8.5,9,9.3,10 parts; The weight part of Rutile type Titanium Dioxide can be 3,3.8,4,4.5,5,5.6,6,6.3,7,7.8,8 parts; The weight part of ferric oxide can be 1,1.2,1.8,2,2.3,2.8,3 part; The weight part of nano-silicon nitride can be 1,1.2,1.8,2,2.3,2.8,3,3.4,4,4.5,5 part; The weight part of nanometer silicon carbide can be 3,3.8,4,4.5,5,5.6,6,6.3,7,8,8.5,9,9.4,10 parts; The weight part of tynex can be 2,2.3,2.8,3,3.4,3.8,4,4.5,4.8,5 parts; The weight part of aluminium hydroxide can be 0.2,0.5,0.8,1,1.2,1.3,1.45,1.5 part; The weight part of zinc borate can be 1,1.2,1.3,1.45,1.5,1.6,1.68,1.75,1.8 part; The weight part of hexamethylene diisocyanate can be 2,2.3,2.8,3,3.4,3.8,4,4.5,4.8,5,5.2,5.5 parts; The weight part of HEMA phosphoric acid ester can be 1.2,1.5,1.8,1.9,2,2.1,2.3,2.35,2.4,2.46,2.5 parts; The weight part of cobalt naphthenate can be 0.1,0.2,0.3,0.4,0.56,0.6,0.7,0.75,0.8 part; The weight part of triethylene tetramine can be 0.1,0.2,0.25,0.3,0.35,0.4,0.46,0.5 part; The weight part of film coalescence aid can be 8,9,10,10.3,11,11.6,12,12.3,13,13.4,14,14.6,15 parts; The weight part of thickening material can be 0.5,0.6,0.7,0.8,1,1.2,1.3,1.45,1.6,1.68,1.8 part; The weight part of sanitas can be 0.2,0.26,0.3,0.38,0.5,0.56,0.6,0.8,0.85,0.9,1 part; The weight part of antifreezing agent can be 0.1,0.2,0.26,0.3,0.35,0.4,0.46,0.5 part; The weight part of deionized water can be 50,56,58,59,59.3,62,64,65,68,68.3,69,70 parts.
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of water resistant, high temperature resistant polyvinyl acetate emulsion coating that the present invention proposes, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 20 parts, nano alumina sol 9 parts, silica 10 part, hexamethyldisilazane 9 parts, silane coupling agent KH-791 modified montmorillonoid 7 parts, expanded vermiculite 8 parts, nano-calcium carbonate 7 parts, Rutile type Titanium Dioxide 7 parts, ferric oxide 1.9 parts, nano-silicon nitride 3.5 parts, nanometer silicon carbide 7 parts, tynex 3.6 parts, 1 part, aluminium hydroxide, zinc borate 1.5 parts, hexamethylene diisocyanate 3.5 parts, HEMA phosphoric acid ester 2.2 parts, cobalt naphthenate 0.5 part, triethylene tetramine 0.35 part, 2-amino-2-methyl-1-propanol 10 parts, Natvosol 1.3 parts, Sodium Benzoate 0.5 part, Kathon CG 0.2 part, antifreezing agent 0.35 part, deionized water 65 parts.
Embodiment 2
A kind of water resistant, high temperature resistant polyvinyl acetate emulsion coating that the present invention proposes, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 25 parts, nano alumina sol 6 parts, silica 15 parts, hexamethyldisilazane 8 parts, organic modification montmonrillonite 10 parts, expanded vermiculite 6 parts, nano-calcium carbonate 8 parts, Rutile type Titanium Dioxide 5 parts, ferric oxide 2.3 parts, nano-silicon nitride 2.8 parts, nanometer silicon carbide 8 parts, tynex 3 parts, 1.4 parts, aluminium hydroxide, zinc borate 1.2 parts, hexamethylene diisocyanate 4.2 parts, HEMA phosphoric acid ester 1.8 parts, cobalt naphthenate 0.7 part, triethylene tetramine 0.3 part, alcohol ester 12 parts, butyl glycol ether 2 parts, Natvosol 0.6 part, polyvinyl alcohol 0.3 part, Kathon CG 0.9 part, antifreezing agent 0.3 part, deionized water 70 parts, wherein, the properties-correcting agent that described organic modification montmonrillonite uses is silane coupling agent KH-560, Silane coupling reagent KH-570, silane resin acceptor kh-550, silane coupling agent ND-43, silane coupling agent KH-791, silane coupling A-151 be by the mixture of any weight ratio.
Embodiment 3
A kind of water resistant, high temperature resistant polyvinyl acetate emulsion coating that the present invention proposes, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 22 parts, nano alumina sol 7 parts, silica 12 parts, hexamethyldisilazane 8.5 parts, organic modification montmonrillonite 8 parts, expanded vermiculite 7 parts, nano-calcium carbonate 7.6 parts, Rutile type Titanium Dioxide 5.3 parts, ferric oxide 2 parts, nano-silicon nitride 3.2 parts, nanometer silicon carbide 7.6 parts, tynex 3.2 parts, 1.3 parts, aluminium hydroxide, zinc borate 1.5 parts, hexamethylene diisocyanate 4 parts, HEMA phosphoric acid ester 2 parts, cobalt naphthenate 0.6 part, triethylene tetramine 0.35 part, propandiol butyl ether 12 parts, polyvinyl alcohol 1 part, Sodium hexametaphosphate 99 0.8 part, polyoxyethylene glycol 0.2 part, propylene glycol 0.1 part, deionized water 65 parts,
Wherein, the median size of described nano-calcium carbonate is 25nm; The median size of nano-silicon nitride is 30nm; The median size of nanometer silicon carbide is 25nm; The properties-correcting agent that organic modification montmonrillonite uses is silane coupling agent KH-560, Silane coupling reagent KH-570, silane resin acceptor kh-550 be by weight the mixture of 1:3:2;
Described silicon-dioxide is improved silica; Described improved silica is prepared according to following technique: added by tetraethoxy in dehydrated alcohol and be mixed with the solution that massfraction is 30wt%, the pH value adding ammoniacal liquor regulator solution is 9, stir 20min, then the hydrochloric acid stirring 20min that massfraction is 25wt% is added, wherein, the volume of hydrochloric acid is 30% of tetraethoxy volume, and adding ammoniacal liquor adjust ph is 9, and then still aging 10h obtains material A; To add in hexanaphthene after material A drying, pulverizing, then hexamethyldisilazane is added, wherein, the weight ratio of material A and hexamethyldisilazane is 1:1.2, the volume ratio of material A and hexanaphthene is 1:2, at 55 DEG C of reaction 10h after stirring, after reaction terminates, obtain improved silica through filtration, washing, drying.
Embodiment 4
A kind of water resistant, high temperature resistant polyvinyl acetate emulsion coating that the present invention proposes, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 10 parts, nano alumina sol 10 parts, silicon-dioxide 5 parts, hexamethyldisilazane 10 parts, organic modification montmonrillonite 3 parts, expanded vermiculite 10 parts, nano-calcium carbonate 3 parts, Rutile type Titanium Dioxide 8 parts, ferric oxide 1 part, nano-silicon nitride 5 parts, nanometer silicon carbide 3 parts, tynex 5 parts, 0.2 part, aluminium hydroxide, zinc borate 1.8 parts, hexamethylene diisocyanate 2 parts, HEMA phosphoric acid ester 2.5 parts, cobalt naphthenate 0.1 part, triethylene tetramine 0.5 part, 2-amino-2-methyl-1-propanol 1 part, alcohol ester 12 parts, butyl glycol ether 3 parts, propandiol butyl ether 2 parts, Natvosol 1 part, polyvinyl alcohol 0.8 part, Kathon CG 0.1 part, Sodium dodecylbenzene sulfonate 0.1 part, polyoxyethylene glycol 0.3 part, glycerol 0.2 part, deionized water 50 parts,
Wherein, the median size of described nano-calcium carbonate is 15nm; The median size of nano-silicon nitride is 40nm; The median size of nanometer silicon carbide is 10nm; The properties-correcting agent that organic modification montmonrillonite uses is silane coupling agent ND-43, silane coupling agent KH-791, silane coupling A-151 be by the mixture of 3:4:2 weight ratio;
Described silicon-dioxide is improved silica; Described improved silica is prepared according to following technique: added by tetraethoxy in dehydrated alcohol and be mixed with the solution that massfraction is 45wt%, the pH value adding ammoniacal liquor regulator solution is 8, stir 35min, then the hydrochloric acid stirring 50min that massfraction is 10wt% is added, wherein, the volume of hydrochloric acid is 15% of tetraethoxy volume, and adding ammoniacal liquor adjust ph is 10, and then still aging 5h obtains material A; To add in hexanaphthene after material A drying, pulverizing, then hexamethyldisilazane is added, wherein, the weight ratio of material A and hexamethyldisilazane is 1:1.5, the volume ratio of material A and hexanaphthene is 1:1, at 65 DEG C of reaction 6h after stirring, after reaction terminates, obtain improved silica through filtration, washing, drying.
Embodiment 5
A kind of water resistant, high temperature resistant polyvinyl acetate emulsion coating that the present invention proposes, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 30 parts, nano alumina sol 3 parts, silica 15 parts, hexamethyldisilazane 5 parts, organic modification montmonrillonite 12 parts, expanded vermiculite 2 parts, nano-calcium carbonate 10 parts, Rutile type Titanium Dioxide 3 parts, ferric oxide 3 parts, nano-silicon nitride 1 part, nanometer silicon carbide 10 parts, tynex 2 parts, 1.5 parts, aluminium hydroxide, zinc borate 1 part, hexamethylene diisocyanate 5.5 parts, HEMA phosphoric acid ester 1.2 parts, cobalt naphthenate 0.8 part, triethylene tetramine 0.1 part, butyl glycol ether 5 parts, carboxymethyl cellulose 0.5 part, Sodium hexametaphosphate 99 0.3 part, Sodium Benzoate 0.2 part, Kathon CG 0.4 part, Sodium dodecylbenzene sulfonate 0.1 part, methyl alcohol 0.1 part, deionized water 70 parts,
Wherein, the median size of described nano-calcium carbonate is 30nm; The median size of nano-silicon nitride is 20nm; The median size of nanometer silicon carbide is 35nm; The properties-correcting agent that organic modification montmonrillonite uses is silane coupling agent KH-560, Silane coupling reagent KH-570 is the mixture of 1:4 by weight;
Described silicon-dioxide is improved silica; Described improved silica is prepared according to following technique: added by tetraethoxy in dehydrated alcohol and be mixed with the solution that massfraction is 40wt%, the pH value adding ammoniacal liquor regulator solution is 8, stir 25min, then the hydrochloric acid stirring 30min that massfraction is 20wt% is added, wherein, the volume of hydrochloric acid is 25% of tetraethoxy volume, and adding ammoniacal liquor adjust ph is 10, and then still aging 8h obtains material A; To add in hexanaphthene after material A drying, pulverizing, then hexamethyldisilazane is added, wherein, the weight ratio of material A and hexamethyldisilazane is 1:1.3, the volume ratio of material A and hexanaphthene is 1:1.5, at 60 DEG C of reaction 8h after stirring, after reaction terminates, obtain improved silica through filtration, washing, drying.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a water resistant, high temperature resistant polyvinyl acetate emulsion coating, it is characterized in that, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 10-30 part, nano alumina sol 3-10 part, silicon-dioxide 5-15 part, hexamethyldisilazane 5-10 part, organic modification montmonrillonite 3-12 part, expanded vermiculite 2-10 part, nano-calcium carbonate 3-10 part, Rutile type Titanium Dioxide 3-8 part, ferric oxide 1-3 part, nano-silicon nitride 1-5 part, nanometer silicon carbide 3-10 part, tynex 2-5 part, aluminium hydroxide 0.2-1.5 part, zinc borate 1-1.8 part, hexamethylene diisocyanate 2-5.5 part, HEMA phosphoric acid ester 1.2-2.5 part, cobalt naphthenate 0.1-0.8 part, triethylene tetramine 0.1-0.5 part, film coalescence aid 8-15 part, thickening material 0.5-1.8 part, sanitas 0.2-1 part, antifreezing agent 0.1-0.5 part, deionized water 50-70 part.
2. water resistant, high temperature resistant polyvinyl acetate emulsion coating according to claim 1, it is characterized in that, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 20-25 part, nano alumina sol 6-9 part, silica 1 0-15 part, hexamethyldisilazane 8-9 part, organic modification montmonrillonite 7-10 part, expanded vermiculite 6-8 part, nano-calcium carbonate 7-8 part, Rutile type Titanium Dioxide 5-7 part, ferric oxide 1.9-2.3 part, nano-silicon nitride 2.8-3.5 part, nanometer silicon carbide 7-8 part, tynex 3-3.6 part, aluminium hydroxide 1-1.4 part, zinc borate 1.2-1.5 part, hexamethylene diisocyanate 3.5-4.2 part, HEMA phosphoric acid ester 1.8-2.2 part, cobalt naphthenate 0.5-0.7 part, triethylene tetramine 0.3-0.35 part, film coalescence aid 10-12 part, thickening material 0.9-1.3 part, sanitas 0.7-0.9 part, antifreezing agent 0.3-0.35 part, deionized water 65-70 part,
Preferably, its raw material comprises following component by weight: polyvinyl acetate emulsion 100 parts, organosilicon-modified acrylate emulsion 22 parts, nano alumina sol 7 parts, silica 12 parts, hexamethyldisilazane 8.5 parts, organic modification montmonrillonite 8 parts, expanded vermiculite 7 parts, nano-calcium carbonate 7.6 parts, Rutile type Titanium Dioxide 5.3 parts, ferric oxide 2 parts, nano-silicon nitride 3.2 parts, nanometer silicon carbide 7.6 parts, tynex 3.2 parts, 1.3 parts, aluminium hydroxide, zinc borate 1.5 parts, hexamethylene diisocyanate 4 parts, HEMA phosphoric acid ester 2 parts, cobalt naphthenate 0.6 part, triethylene tetramine 0.35 part, film coalescence aid 12 parts, thickening material 1 part, sanitas 0.8 part, antifreezing agent 0.3 part, deionized water 65 parts.
3. water resistant, high temperature resistant polyvinyl acetate emulsion coating according to claim 1 or 2, is characterized in that, described silicon-dioxide is improved silica; Described improved silica is prepared according to following technique: added by tetraethoxy in dehydrated alcohol and be mixed with the solution that massfraction is 30-45wt%, the pH value adding ammoniacal liquor regulator solution is 8-9, stir 20-35min, then the hydrochloric acid stirring 20-50min that massfraction is 10-25wt% is added, wherein, the volume of hydrochloric acid is the 15-30% of tetraethoxy volume, and adding ammoniacal liquor adjust ph is 9-10, and then still aging 5-10h obtains material A; To add in hexanaphthene after material A drying, pulverizing, then hexamethyldisilazane is added, wherein, the weight ratio of material A and hexamethyldisilazane is 1:1.2-1.5, the volume ratio of material A and hexanaphthene is 1:1-2, at 55-65 DEG C of reaction 6-10h after stirring, after reaction terminates, obtain improved silica through filtration, washing, drying.
4. water resistant, high temperature resistant polyvinyl acetate emulsion coating according to any one of claim 1-3, is characterized in that, described silicon-dioxide is improved silica; Described improved silica is prepared according to following technique: added by tetraethoxy in dehydrated alcohol and be mixed with the solution that massfraction is 40wt%, the pH value adding ammoniacal liquor regulator solution is 8, stir 25min, then the hydrochloric acid stirring 30min that massfraction is 20wt% is added, wherein, the volume of hydrochloric acid is 25% of tetraethoxy volume, and adding ammoniacal liquor adjust ph is 10, and then still aging 8h obtains material A; To add in hexanaphthene after material A drying, pulverizing, then hexamethyldisilazane is added, wherein, the weight ratio of material A and hexamethyldisilazane is 1:1.3, the volume ratio of material A and hexanaphthene is 1:1.5, at 60 DEG C of reaction 8h after stirring, after reaction terminates, obtain improved silica through filtration, washing, drying.
5. water resistant, high temperature resistant polyvinyl acetate emulsion coating according to any one of claim 1-4, it is characterized in that, the properties-correcting agent that organic modification montmonrillonite uses is silane coupling agent KH-560, one or more mixture in Silane coupling reagent KH-570, silane resin acceptor kh-550, silane coupling agent ND-43, silane coupling agent KH-791, silane coupling A-151.
6. water resistant, high temperature resistant polyvinyl acetate emulsion coating according to any one of claim 1-5, is characterized in that, the median size of described nano-calcium carbonate is 15-30nm; The median size of nano-silicon nitride is 20-40nm; The median size of nanometer silicon carbide is 10-35nm.
7. water resistant, high temperature resistant polyvinyl acetate emulsion coating according to any one of claim 1-6, it is characterized in that, described film coalescence aid is one or more the mixture in 2-amino-2-methyl-1-propanol, alcohol ester 12, butyl glycol ether, propandiol butyl ether.
8. water resistant, high temperature resistant polyvinyl acetate emulsion coating according to any one of claim 1-7, is characterized in that, described thickening material is one or more the mixture in carboxymethyl cellulose, Natvosol, polyvinyl alcohol.
9. water resistant, high temperature resistant polyvinyl acetate emulsion coating according to any one of claim 1-8, is characterized in that, described sanitas is one or more the mixture in Sodium hexametaphosphate 99, Sodium Benzoate, Kathon CG, Sodium dodecylbenzene sulfonate.
10. water resistant, high temperature resistant polyvinyl acetate emulsion coating according to any one of claim 1-9, it is characterized in that, described antifreezing agent is one or more the mixture in methyl alcohol, ethanol, polyoxyethylene glycol, glycerol, butyleneglycol, Virahol, propylene glycol.
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