CN105349022A - Acrylic modified anion water-soluble urethane oil dispersion, preparation method thereof and woodenware coating using same as basic material - Google Patents
Acrylic modified anion water-soluble urethane oil dispersion, preparation method thereof and woodenware coating using same as basic material Download PDFInfo
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Abstract
The invention relates to an acrylic modified anion water-soluble urethane oil dispersion, a preparation method thereof and a woodenware coating using the same as a basic material. The synthesis formula of the acrylic modified anion water-soluble urethane oil dispersion includes, by weight, unsaturated fatty acid 13-18%, (methyl) acrylate and a vinyl monomer 5-8%, methacrylic acid 2-4 %, an initiator 0.1-0.5%, polyol 5-8%, a cosolvent 4-8%, a diisocyanate compound 4-8%, a neutralizer 1-2%, a chain extender 0.05-0.1% and deionized water 60-65%. The water-soluble woodenware coating using the acrylic modified anion water-soluble urethane oil dispersion as the basic material has the advantages of being quick to dry, good in abrasion resistance, good in water resistance, good in adhesive power, higher in hardness and the like. The VOC content of the water-soluble woodenware coating is lower, and the water-soluble woodenware coating is environmentally friendly and can be widely used for furniture coating and home decoration.
Description
Technical field
The invention belongs to coating protecting field, particularly a kind of acrylic acid modified anion aqueous ammonia ester oil dispersion and preparation thereof and the woodwork coating that is base-material with it.
Background technology
The world today more and more payes attention to environment protection, and the critical role of environmental protection in people's daily life also highlights day by day.No matter be industrial goods or family daily necessity, all towards environmentally friendly future development.Water-borne wood coating is complied with this market requirement just and is greatly developed.
The main species of current domestic existing water-borne wood coating has: water alcohol acid woodwork coating, water-and acrylate woodwork coating and waterborne polyurethane wood coatings etc.Although water alcohol acid woodwork coating good film-forming property, glossiness are high, good decorative property, dried coating film speed is slow, hardness is low, yellowing resistance is poor, and coating is easily hydrolyzed in storage process, poor storage stability; Water-and acrylate woodwork coating has excellent photostabilization, outdoor exposure weather resistance, fabulous snappiness, and cost is low, but its film wear resistance and chemical resistance poor, fullness ratio is bad; Although waterborne polyurethane wood coatings fullness ratio is high, wear resistance good, good toughness, good decorative property, hardness of film is low, and cost is high.
Water borne PUA dispersion is that a kind of vegetable fatty acids that utilizes carries out cross-linking modified aqueous polyurethane dispersion.Its advantage is: rely on the vegetable fatty acids containing unsaturated carbon-carbon double bond, catalysis self-crosslinking is carried out by metal drier, the aqueous polyurethane dispersion of preparation is had self-crosslinking, improve the cross-linking density of aqueous polyurethane, thus improve water tolerance and the chemical-resistant of aqueous polyurethane dispersion; Meanwhile, contribute to the particle diameter reducing dispersion, the surface tension of adjustment aqueous polyurethane dispersion, improve aqueous polyurethane dispersion to the penetrating power of timber pore and the speed and the degree that improve particles coalesce, shorten the time of drying of film; In addition, the nonpolar fatty acid chain of long-chain can make film have good hydrophobic interaction, and can give the good snappiness of coating, resistance to deflection and winter hardiness, can improve the film forming properties of coating and improve gloss.But water borne PUA dispersion still also exists the shortcomings such as rate of drying is slow, hardness is low, weathering resistance is poor, easy xanthochromia.The rate of drying of acrylic resin is fast, and hardness is high, good weatherability.Acrylic resin is incorporated in water borne PUA dispersion, graft modification is carried out to water borne PUA dispersion, greatly can improve rate of drying and the hardness of water borne PUA dispersion film, and the weathering resistance of film can be improved.The research of China to acrylic modified waterborne ammonia ester oil dispersion is less, and the patent of application is very few, and relevant technology also rarely has report.
Summary of the invention
The present invention is intended to overcome the shortcomings such as the hardness of current water borne PUA dispersion is low, weathering resistance is poor, chemical-resistant is not good; by the method for chemical graft acrylic resin; improve dryness and the hardness of water borne PUA dispersion; make the water borne PUA of preparation disperse physical efficiency to meet the performance requriements of water-borne wood coating, a kind of nontoxic, natural, environmental protection, omnibearing protection and wear-resisting water-borne wood coating are provided.
Technical scheme of the present invention is as follows: a kind of acrylic acid modified anion aqueous ammonia ester oil dispersion, by weight percentage, composition comprises the synthesizing formula of this acrylic acid modified anion aqueous ammonia ester oil dispersion: the unsaturated fatty acids of 13 % by weight ~ 18 % by weight; (methyl) acrylate of 5 % by weight ~ 8 % by weight or vinyl monomer; The methacrylic acid of 2 % by weight ~ 4 % by weight; The initiator of 0.1 % by weight ~ 0.5 % by weight; The polyvalent alcohol of 5 % by weight ~ 8 % by weight; The solubility promoter of 4 % by weight ~ 8 % by weight; The diisocyanate cpd of 4 % by weight ~ 8 % by weight; The neutralizing agent of 1 % by weight ~ 2 % by weight; The chainextender of 0.05 % by weight ~ 0.1 % by weight; The deionized water of 60 % by weight ~ 65 % by weight.
Furtherly, the unsaturated fatty acids described in the present invention is selected from: linolic acid, behenic acid, linolenic acid, paulownia linolic acid, dehydrated castor oleic acid, ricinolic acid, tetradecanoic acid, β-crotonic acid, cocinic acid, tall oil fatty acid, sylvic acid, cotton seed acid, one or more in tall oil acid.
Furtherly, in the present invention, (methyl) acrylate or vinyl monomer are selected from: one or more in methyl acrylate, ethyl propenoate, butyl acrylate, n-butyl acrylate, isobutyl acrylate, EHA, n-octyl, methyl methacrylate, β-dimethyl-aminoethylmethacrylate, n-BMA, Propenoic acid, 2-methyl, isobutyl ester, ethylhexyl methacrylate, n octyl methacrylate, vinylbenzene, Vinyl toluene; Described initiator is selected from one or more in benzoyl peroxide (BPO), peroxidized t-butyl perbenzoate (TBPB), di-t-butyl peroxide (DTBP), tert-butyl peroxide (TBHP), cyclohexanone peroxide (CHPO), peroxidation PIVALIC ACID CRUDE (25) tert-pentyl ester (TAPP), tert-Butyl peroxypivalate (TAPP).
Furtherly, the polyvalent alcohol described in the present invention is selected from: one or more in glycerine, tetramethylolmethane, Dipentaerythritol, TriMethylolPropane(TMP), trimethylolethane; Described solubility promoter is selected from: one or more in dimethyl ether, acetone, N-Methyl pyrrolidone, N-ethyl pyrrolidone, butanone, 1-Methoxy-2-propyl acetate.
Furtherly, the vulcabond described in the present invention is selected from: one or more in tolylene diisocyanate (TDI), '-diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), trimethylammonium hexamethylene diisocyanate (TMDI), dicyclohexyl methane diisocyanate (HMDI), xylylene diisocyanate (XDI), tetramethylxylylene diisocyanate (TMXDI), hexahydrotoluene vulcabond (HTDI).
Furtherly, the neutralizing agent described in the present invention is selected from N, one or more in N-dimethylethanolamine, 2-amino-2-methyl-1-propanol, 25 % by weight ammoniacal liquor, triethylamine, trolamine, diethylamine, diethanolamine; Described chainextender is selected from: one or more in quadrol, diethylenetriamine, propylene diamine, hexanediamine, diethanolamine.
The preparation method of the acrylic acid modified anion aqueous ammonia ester oil dispersion described in the present invention comprises the steps: the unsaturated fatty acids of account for unsaturated fatty acids total amount 35 % by weight ~ 50 % by weight to drop in reactor, is warming up to 135 DEG C ~ 145 DEG C under whipped state gradually; After (methyl) acrylate or vinyl monomer, methacrylic acid and initiator being mixed, be at the uniform velocity added drop-wise in reactor, time for adding is 6 ~ 8 hours; After dropwising, 135 DEG C ~ 145 DEG C insulations 3 ~ 4 hours, be 98 ± 2% to transformation efficiency; Polyvalent alcohol and the remaining unsaturated fatty acids accounting for unsaturated fatty acids total amount 50 % by weight ~ 65 % by weight are dropped in reactor, is warming up to 175 ~ 185 DEG C gradually, and remains on reaction in this temperature range; When reaction is after 1 ~ 2 hour, start to survey acid number; After acid number is 70 ~ 80mgKOH/g, start to vacuumize, carry out underpressure distillation, remove all moisture, and lower the temperature; When being cooled to 60 ~ 70 DEG C, adding solubility promoter, then starting to drip diisocyanate cpd, dripping off within half an hour; Owing to being thermopositive reaction, temperature of reaction rises gradually, is finally warming up to 100 DEG C, reacts 1.5 ~ 2.5 hours at such a temperature, starts cooling; Be cooled to 50 ~ 80 DEG C, the neutralizing agent being dissolved in deionized water dropped in reactor, stirs 15 ~ 30 minutes; Start the deionized water of dropping containing chainextender in reactor; After dropwising, continue stirring 30 ~ 40 minutes; Filter and pack, namely obtaining acrylic acid modified anion aqueous ammonia ester oil dispersion, the acid number of this acrylic acid modified anion aqueous ammonia ester oil dispersion is 40 ~ 55mgKOH/g, and amount of solid content is 36 % by weight ~ 42 % by weight.
A kind of woodwork coating that is base-material with the acrylic acid modified anion aqueous ammonia ester oil dispersion described in the present invention, the formula of this woodwork coating by weight percentage, composition comprises: the acrylic acid modified anion aqueous ammonia ester oil dispersion emulsion of 56.0 % by weight ~ 99.0 % by weight, the color stuffing of 0 % by weight ~ 43.0 % by weight, the wetting dispersing agent of 0 % by weight ~ 3.0 % by weight, the neutralizing agent of 0.1 % by weight ~ 1.0 % by weight, the defoamer of 0.1 % by weight ~ 0.5 % by weight, the siccative of 0.1 % by weight ~ 0.8 % by weight, the thickening material of 0.1 % by weight ~ 1.0 % by weight.
Color stuffing in the formula of woodwork coating of the present invention is selected from: one or more in titanium dioxide, carbon black, red, phthalocyanine blue, lemon yellow, organic yellow, phthalocyanine green, iron oxide red, talcum powder, process white, kaolin.
Wetting dispersing agent in the formula of woodwork coating of the present invention is selected from: one or more in the Hydropalat535N of BorchiGen0650, Cognis company of BYK-190, BYK-191, Borchers company of German Bi Ke chemical company; Described siccative is selected from: one or more in HLD061, Qing Te company of the U.S. VXW4940 of Changfeng Chemical Plant, Shanghai.
Neutralizing agent in the formula of woodwork coating of the present invention is selected from: one or more in ammoniacal liquor (25wt%), AMP-95 (Dow Chemical), N, N-dimethylethanolamine, triethylamine, diethylamine, diethanolamine, trolamine.
Siccative in the formula of woodwork coating of the present invention is selected from: one or more in HLD061 (Changfeng Chemical Plant, Shanghai), VXW4940 (Qing Te company of the U.S.).
Defoamer in the formula of woodwork coating of the present invention is selected from: one or more in BYK-020 (German Bi Ke chemical company), BYK-024 (German Bi Ke chemical company), BorchersAF0671 (borchers company), Foamex810 (German Di Gao company).
Thickening material in the formula of woodwork coating of the present invention is selected from: one or more in WT-202 (De Qian company), Rheolate255 (Hai Mingsi company of the U.S.).
Acrylic acid modified anion aqueous ammonia ester oil dispersion of the present invention has following innovative point and advantage: 1. preparation technology is simple, building-up process and quality product easily control, and only use the organic solvent of minute quantity, and without the need to removing, make the dispersion emulsion smell of preparation low, reach the requirement of environmental protection; 2. combine the advantage of Synolac, acrylic resin and urethane resin three, provide a kind of omnibearing protection to base material; 3. the air-drying property vegetable fatty acids used is the important renewable resources of a class, and utilizing it to contain unsaturated carbon-carbon double bond, can carry out oxidation cross-linked, is natural linking agent, greatly can improve the performance of resin; 4. adopt chemical graft mode to introduce in water borne PUA by acrylic resin, rely on the weathering resistance of acrylic resin excellence and high second-order transition temperature, improve dryness and the hardness of water borne PUA.
The advantage that the water-borne wood coating that is base-material with acrylic acid modified anion aqueous ammonia ester oil dispersion provided by the invention has is: quick-drying, wear resistance is good, good water tolerance, good sticking power and higher hardness.The VOC content of water-borne wood coating of the present invention is lower, is less than HBC12-2002 environmental labelling product authentication techniques and requires that in water-borne coatings standard, VOC is less than the regulation of 250g/L.Therefore, water-borne wood coating of the present invention meets environmental requirement, belongs to environmentally friendly, can be widely used in furniture application and house decoration.
Embodiment
Below by embodiment, content of the present invention is further described, but scope of the present invention is in no way limited to these embodiments.
" part " number of raw material add-on in following examples is " weight part ".
Embodiment 1
The linolenic acid of 71 parts is dropped in reactor, under whipped state, is warming up to 135 DEG C ~ 145 DEG C gradually; By the methyl methacrylate of 26 parts, after the di-t-butyl peroxide of the vinylbenzene of 39 parts, the methacrylic acid of 35 parts and 4 parts mixes, be at the uniform velocity added drop-wise in reactor, time for adding is 6 ~ 8 hours; After dropwising, 135 DEG C ~ 145 DEG C insulations 3 ~ 4 hours, being 98 ± 2% to transformation efficiency, take solid content as card.Again the linolenic acid of the TriMethylolPropane(TMP) of 67 parts and 85 parts is dropped in reactor and be warming up to 175 ~ 185 DEG C gradually, and remain on reaction in this temperature range; When reaction is after 2 hours, start to survey acid number; After acid number is 70 ~ 75mgKOH/g, start to vacuumize, carry out underpressure distillation, remove all moisture, and lower the temperature; When being cooled to 70 DEG C, add the N-Methyl pyrrolidone of 45 parts; After continuing to be warming up to 70 DEG C, start the tolylene diisocyanate dripping 50 parts, drip off within half an hour; Owing to being thermopositive reaction, temperature of reaction rises gradually, is finally warming up to 100 DEG C, reacts after 2 hours at such a temperature, starts to be cooled to 80 DEG C, neutralize with the N of 15 parts, N dimethylethanolamine, stir 15 ~ 30 minutes; Then carry out emulsification with 562 parts of deionized waters containing 1 part of quadrol, filter and pack, finally obtaining pH value is 7.5 ~ 8.5, and solids content is that the emulsus of 37% (weight) is to translucent acrylic acid modified anion aqueous ammonia ester oil dispersion.
Embodiment 2
The linolenic acid of 71 parts is dropped in reactor, under whipped state, is warming up to 135 DEG C ~ 145 DEG C gradually; By the n-BMA of 26 parts, after the benzoyl peroxide of the vinyl toluene of 39 parts, the methacrylic acid of 35 parts and 4 parts mixes, be at the uniform velocity added drop-wise in reactor, time for adding is 6 ~ 8 hours; After dropwising, 135 DEG C ~ 145 DEG C insulations 3 ~ 4 hours, being 98 ± 2% to transformation efficiency, take solid content as card.Again the linolenic acid of the TriMethylolPropane(TMP) of 67 parts and 105 parts is dropped in reactor, be warming up to 175 ~ 185 DEG C gradually, and remain on reaction in this temperature range; When reaction is after 2 hours, start to survey acid number; After acid number is 70 ~ 75mgKOH/g, start to vacuumize, carry out underpressure distillation, remove all moisture, and lower the temperature; When being cooled to 70 DEG C, add the N-Methyl pyrrolidone of 45 parts; After continuing to be warming up to 70 DEG C, start the isophorone diisocyanate dripping 65 parts, drip off within half an hour; Owing to being thermopositive reaction, temperature of reaction rises gradually, is finally warming up to 100 DEG C, reacts after 2 hours at such a temperature, starts to be cooled to 80 DEG C, neutralize with the N of 15 parts, N dimethylethanolamine, stir 15 ~ 30 minutes; Then carry out emulsification with 527 parts of deionized waters containing 1 part of quadrol, filter and pack, finally obtaining pH value is 7.5 ~ 8.5, and solids content is that the emulsus of 38% (weight) is to translucent acrylic acid modified anion aqueous ammonia ester oil dispersion.
Embodiment 3
The tall oil acid of 71 parts is dropped in reactor, under whipped state, is warming up to 135 DEG C ~ 145 DEG C gradually; After being mixed by the peroxidized t-butyl perbenzoate of the n-BMA of 26 parts, the vinyl toluene of 39 parts, the methacrylic acid of 35 parts and 4 parts, be at the uniform velocity added drop-wise in reactor, time for adding is 6 ~ 8 hours; After dropwising, 135 DEG C ~ 145 DEG C insulations 3 ~ 4 hours, being 98 ± 2% to transformation efficiency, take solid content as card.Again the TriMethylolPropane(TMP) of 67 parts, the dimethylbenzene of 25 parts and the tall oil acid of 85 parts are dropped in reactor, be warming up to 175 ~ 185 DEG C gradually, and remain on reaction in this temperature range; When reaction is after 2 hours, start to survey acid number; After acid number is 70 ~ 75mgKOH/g, start to vacuumize, carry out underpressure distillation, remove all moisture and dimethylbenzene, and lower the temperature; When being cooled to 70 DEG C, add the N-Methyl pyrrolidone of 45 parts; After continuing to be warming up to 70 DEG C, start the tolylene diisocyanate dripping 50 parts, drip off within half an hour; Owing to being thermopositive reaction, temperature of reaction rises gradually, is finally warming up to 100 DEG C, reacts after 2 hours at such a temperature, starts to be cooled to 80 DEG C, neutralize with the N of 15 parts, N dimethylethanolamine, stir 15 ~ 30 minutes; Then carry out emulsification with 540 parts of deionized waters containing the quadrol of 1 part, filter and pack, finally obtaining pH value is 7.5 ~ 8.5, and solids content is that the emulsus of 38% (weight) is to translucent acrylic acid modified anion aqueous ammonia ester oil dispersion.Table 1 lists acrylic acid modified anion aqueous ammonia ester oil dispersion technology index.
The acrylic acid modified anion aqueous ammonia ester oil dispersion technology index of table 1
Embodiment 4
, aqueous wooden ware of the present invention is coated with formula in table 2.
Table 2 water-borne wood coating formula (white)
The preparation method of water-borne wood coating is as follows:
1 master grind stage
(1) in Scattered Kettle, add the deionized water of formula ratio, under agitation, slowly add BYK-190 wetting dispersing agent and the Foamex810 defoamer of formula ratio;
(2) under agitation, slowly add the R706 titanium dioxide of formula ratio, after stirring, grind with sand mill, until fineness is less than 20 microns;
(3), after reaching fineness requirement, mill base is released, for subsequent use.
2 mix stages
(1) in paint mixing kettle, add the acrylic acid modified anion aqueous ammonia ester oil dispersion of formula ratio, under agitation, the ammoniacal liquor slowly adding formula ratio neutralizes, and then adds Foamex810 defoamer and HLD-061 water-based siccative;
(2) mill base of the first step grinding under agitation, is slowly added;
(3) check pH value, and be 7.5 ~ 8.5 by ammoniacal liquor adjusted to ph, and add RM-8W thickening material and appropriate deionized water, be adjusted to suitable viscosity;
(4) with 80 ~ 120 object strainer filterings, namely water-borne wood coating is obtained.Water-borne wood coating of the present invention is carried out performance test according to HB/T3828-2006 standard.The results are shown in Table 3.
The performance test results of table 3 water-borne wood coating of the present invention
Claims (10)
1. an acrylic acid modified anion aqueous ammonia ester oil dispersion, is characterized in that, by weight percentage, composition comprises the synthesizing formula of described acrylic acid modified anion aqueous ammonia ester oil dispersion: the unsaturated fatty acids of 13 % by weight ~ 18 % by weight; (methyl) acrylate of 5 % by weight ~ 8 % by weight or vinyl monomer; The methacrylic acid of 2 % by weight ~ 4 % by weight; The initiator of 0.1 % by weight ~ 0.5 % by weight; The polyvalent alcohol of 5 % by weight ~ 8 % by weight; The solubility promoter of 4 % by weight ~ 8 % by weight; The diisocyanate cpd of 4 % by weight ~ 8 % by weight; The neutralizing agent of 1 % by weight ~ 2 % by weight; The chainextender of 0.05 % by weight ~ 0.1 % by weight; The deionized water of 60 % by weight ~ 65 % by weight.
2. acrylic acid modified anion aqueous ammonia ester oil dispersion according to claim 1, it is characterized in that, described unsaturated fatty acids is selected from: linolic acid, behenic acid, linolenic acid, paulownia linolic acid, dehydrated castor oleic acid, ricinolic acid, tetradecanoic acid, β-crotonic acid, cocinic acid, tall oil fatty acid, sylvic acid, cotton seed acid, one or more in tall oil acid.
3. acrylic acid modified anion aqueous ammonia ester oil dispersion according to claim 1, it is characterized in that, described (methyl) acrylate or vinyl monomer are selected from: one or more in methyl acrylate, ethyl propenoate, butyl acrylate, n-butyl acrylate, isobutyl acrylate, EHA, n-octyl, methyl methacrylate, β-dimethyl-aminoethylmethacrylate, n-BMA, Propenoic acid, 2-methyl, isobutyl ester, ethylhexyl methacrylate, n octyl methacrylate, vinylbenzene, Vinyl toluene; Described initiator is selected from one or more in benzoyl peroxide, peroxidized t-butyl perbenzoate, di-t-butyl peroxide, tert-butyl peroxide, cyclohexanone peroxide, peroxidation PIVALIC ACID CRUDE (25) tert-pentyl ester, tert-Butyl peroxypivalate.
4. acrylic acid modified anion aqueous ammonia ester oil dispersion according to claim 1, it is characterized in that, described polyvalent alcohol is selected from: one or more in glycerine, tetramethylolmethane, Dipentaerythritol, TriMethylolPropane(TMP), trimethylolethane; Described solubility promoter is selected from: one or more in dimethyl ether, acetone, N-Methyl pyrrolidone, N-ethyl pyrrolidone, butanone, 1-Methoxy-2-propyl acetate.
5. acrylic acid modified anion aqueous ammonia ester oil dispersion according to claim 1, it is characterized in that, described vulcabond is selected from: one or more in tolylene diisocyanate, '-diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, trimethylammonium hexamethylene diisocyanate, dicyclohexyl methane diisocyanate, xylylene diisocyanate, tetramethylxylylene diisocyanate, hexahydrotoluene vulcabond.
6. acrylic acid modified anion aqueous ammonia ester oil dispersion according to claim 1, it is characterized in that, described neutralizing agent is selected from N, one or more in N-dimethylethanolamine, 2-amino-2-methyl-1-propanol, 25 % by weight ammoniacal liquor, triethylamine, trolamine, diethylamine, diethanolamine; Described chainextender is selected from: one or more in quadrol, diethylenetriamine, propylene diamine, hexanediamine, diethanolamine.
7. the preparation method of an acrylic acid modified anion aqueous ammonia ester oil dispersion according to claim 1, this preparation method comprises the steps: the unsaturated fatty acids of account for unsaturated fatty acids total amount 35 % by weight ~ 50 % by weight to drop in reactor, is warming up to 135 DEG C ~ 145 DEG C under whipped state gradually; After (methyl) acrylate or vinyl monomer, methacrylic acid and initiator being mixed, be at the uniform velocity added drop-wise in reactor, time for adding is 6 ~ 8 hours; After dropwising, 135 DEG C ~ 145 DEG C insulations 3 ~ 4 hours, be 98 ± 2% to transformation efficiency; Polyvalent alcohol and the remaining unsaturated fatty acids accounting for unsaturated fatty acids total amount 50 % by weight ~ 65 % by weight are dropped in reactor, is warming up to 175 ~ 185 DEG C gradually, and remains on reaction in this temperature range; When reaction is after 1 ~ 2 hour, start to survey acid number; After acid number is 70 ~ 80mgKOH/g, start to vacuumize, carry out underpressure distillation, remove all moisture, and lower the temperature; When being cooled to 60 ~ 70 DEG C, adding solubility promoter, then starting to drip diisocyanate cpd, dripping off within half an hour; Owing to being thermopositive reaction, temperature of reaction rises gradually, is finally warming up to 100 DEG C, reacts 1.5 ~ 2.5 hours at such a temperature, starts cooling; Be cooled to 50 ~ 80 DEG C, the neutralizing agent being dissolved in deionized water dropped in reactor, stirs 15 ~ 30 minutes; Start the deionized water of dropping containing chainextender in reactor; After dropwising, continue stirring 30 ~ 40 minutes; Filter and pack, namely obtaining acrylic acid modified anion aqueous ammonia ester oil dispersion, the acid number of this acrylic acid modified anion aqueous ammonia ester oil dispersion is 40 ~ 55mgKOH/g, and amount of solid content is 36 % by weight ~ 42 % by weight.
8. the woodwork coating that is base-material with acrylic acid modified anion aqueous ammonia ester oil dispersion according to claim 1, it is characterized in that, the formula of this woodwork coating by weight percentage, composition comprises: the acrylic acid modified anion aqueous ammonia ester oil dispersion emulsion of 56 % by weight ~ 99 % by weight, the color stuffing of 0 % by weight ~ 43 % by weight, the wetting dispersing agent of 0 % by weight ~ 3 % by weight, the neutralizing agent of 0.1 % by weight ~ 1 % by weight, the defoamer of 0.1 % by weight ~ 0.5 % by weight, the siccative of 0.1 % by weight ~ 0.8 % by weight, the thickening material of 0.1 % by weight ~ 1 % by weight.
9. woodwork coating according to claim 8, it is characterized in that, described color stuffing is selected from: one or more in titanium dioxide, carbon black, red, phthalocyanine blue, lemon yellow, organic yellow, phthalocyanine green, iron oxide red, talcum powder, process white, kaolin.
10. woodwork coating according to claim 8, it is characterized in that, described wetting dispersing agent is selected from: one or more in the Hydropalat535N of BorchiGen0650, Cognis company of BYK-190, BYK-191, Borchers company of German Bi Ke chemical company; Described siccative is selected from: one or more in HLD061, Qing Te company of the U.S. VXW4940 of Changfeng Chemical Plant, Shanghai.
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| CN106317370A (en) * | 2016-08-29 | 2017-01-11 | 佛山市高明同德化工有限公司 | Waterborne polyurethane acrylate and preparing method and waterborne coating thereof |
| CN107746449A (en) * | 2017-09-01 | 2018-03-02 | 佛山市高明同德化工有限公司 | A kind of organosilicon-modified acrylic grafting water borne PUA and preparation method thereof |
| CN114195948A (en) * | 2021-11-25 | 2022-03-18 | 上海展辰涂料有限公司 | Acrylic acid aqueous dispersion for anti-collapse woodware and preparation method thereof |
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| CN106046310A (en) * | 2016-07-02 | 2016-10-26 | 安徽中恩化工有限公司 | Preparation method of grinding-resistant aqueous cigarette packet printing ink resin |
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| CN114195948A (en) * | 2021-11-25 | 2022-03-18 | 上海展辰涂料有限公司 | Acrylic acid aqueous dispersion for anti-collapse woodware and preparation method thereof |
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