CN103319665A - Single-component room-temperature multiple-self-crosslinking aqueous epoxy acrylate resin emulsion and preparation method thereof - Google Patents
Single-component room-temperature multiple-self-crosslinking aqueous epoxy acrylate resin emulsion and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a single-component room-temperature multiple-self-crosslinking aqueous epoxy acrylate resin emulsion and a preparation method thereof. The method comprises the steps of: firstly, in parts by mass, preparing 40-50 parts of bisphenol A type epoxy resin and 50-60 parts of unsaturated fatty acid, introducing nitrogen gas to protect under the action of a catalyst, and carrying out esterification reaction so as to synthesize unsaturated fatty acid-modified epoxy ester resin; then, adding a cosolvent to room-temperature self-crosslinking epoxy ester resin, dropwise adding an initiator, monomers with hydrophilic groups, self-crosslinking functional monomers and a chain transfer agent to the room-temperature self-crosslinking epoxy ester resin in 1-3 h at the temperature of 100-110 DEG C, and then, carrying out free radical grafting and copolymerizing reaction so as to obtain single-component room-temperature multiple-self-crosslinking aqueous epoxy acrylate resin; and adding an amine neutralizer to neutralize, and then, adding deionized water to disperse, thereby obtaining a single-component dual-self-crosslinking aqueous epoxy acrylate resin emulsion. The emulsion has the advantages of fast paint film drying, strong adhesive power, high mechanical strength and excellent corrosion resistance.
Description
Technical field
The invention belongs to coating class technical field, be specifically related to a kind of matrix resin that is mainly used in the protective system of steel product, be particularly useful for the protection of vehicular traffic, engineering machinery, steel furniture manufacturing industry etc. and the room-temperature self-crosslinking water-based protective system of single-component of coating application.
Technical background
Resins, epoxy has fabulous tack, stability, wear resistance, erosion resistance, insulativity and physical strength as one of three big interchangeable heat thermosetting resins, is widely used in the coatings industry field.But traditional Resins, epoxy will be used a large amount of organic solvents in application, and this has increased cost on the one hand, and shortcoming such as inflammable, explosive, poisonous, the contaminate environment of organic solvent is given and stored and construction has brought a lot of inconvenience on the other hand.This drawbacks limit the extensive use of Resins, epoxy in coatings industry.Along with improving day by day and the continuous enhancing of people's environmental consciousness of various countries' environmental regulation, be that the water-borne coatings of solvent and dispersion agent has obtained developing rapidly as the coating variety of environmental protection with water, the exploitation water-borne coatings has become the development trend of following coating industry.
In order to improve the paint film property of water-borne coatings, can reach the excellent properties of solvent based coating paint film, form the crosslinked universal demand that become behind the dried coating film.By crosslinked, emulsion film forms the three-dimensional net structure of height, thereby water tolerance, erosion resistance and the physical strength of filming are improved significantly than non-crosslinked type emulsion.According to crosslinking method, crosslinkedly can be divided into high-temperature cross-linking, UV curing cross-linked and normal temperature crosslinked.High-temperature cross-linking need heat and consume big energy, and the range of application of UV curing cross-linked is restricted, as not being applied in the building coating.And the normal temperature crosslinked energy of not only can saving, but also be applicable to any application and execution conditions.According to packaging means, crosslinked can be divided into the crosslinked and two components of single-component again crosslinked.Two components refer to coating products and two components of solidifying agent, two kinds of necessary packing storages of component, now with the current during packing, and two components are generally very short mixed duration of service, must disposable using up.The existing water-based anticorrosive paint pair components that adopt more, the application cost height, constructing operation is loaded down with trivial details, and the single-component packing can be avoided these defectives.Therefore, the room-temperature self-crosslinking water-based coating of exploitation single-component has more vast market prospect and using value.
Usually contain in the polymer molecular chain of ambient crosslinking water-borne coatings film-forming resin and can bring out crosslinked functional group by self chemical reaction or additional crosslink agent.Self-crosslinking is to realize crosslinked from condensation or autooxidation by the function monomer from condensation or autoxidation performance of having that is incorporated on the polymer molecular chain in the room temperature film-forming process.The room-temperature self crosslinking system mainly contains following four kinds: based on the room temperature hydrolytie polycondensation self-crosslinking of the room-temperature self crosslinking of N hydroxymethyl acrylamide and derivative thereof, siloxanes, crosslinked based on the room temperature autoxidation of two keys in the room-temperature self crosslinking of epoxide group and the unsaturated fatty acids.The room-temperature self crosslinking coating of exploitation is to adopt single crosslinking method mostly at present, along with people are more and more higher to the film performance requirement of coating, the performance of single crosslinked water-borne coatings often can not satisfy the requirement of application, and the multiple cross-linked cross-linking density that can effectively improve paint film, and then the performances such as water tolerance, wear resistance, erosion resistance and physical strength of improvement paint film, represented water-based anticorrosive paint self-crosslinking Developing Trend in Technology in the future.
Summary of the invention
The objective of the invention is to overcome the weak point of existing aqueous epoxy resins etching ground, multiple self-crosslinking aqueous epoxy acrylic resin emulsion of a kind of single-component room temperature and preparation method thereof is provided, its product advantage be with water as solvent, nontoxic pollution-free, emulsion particle diameter is little, stability in storage good, the brushing performance is good, paint film smooth smooth, glossiness is high, keeps simultaneously the strong adhesion, water-tolerant of solvent epoxy varnish etching ground, excellent properties such as corrosion-resistant and wear-resisting again.
The Water-borne modification of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of single-component room temperature that reaches of the present invention is to adopt free radical grafting modification method, under action of evocating, the initiation of the methylene radical on the Resins, epoxy molecular chain is formed free radical, with the acrylic monomer graft copolymerization that has carboxyl, introduce carboxyl at the Resins, epoxy molecular chain, again in and in water, disperse behind the salify and obtain self-emulsified aqueous epoxy emulsion.The prepared emulsion particle of chemic modified method is little, is generally the nm level, good stability.
Of the present invention and the multiple self-crosslinking of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of single-component room temperature be to realize by two kinds of approach: the one, by Resins, epoxy and unsaturated fatty acids esterification production self-drying type epoxy ester takes place under the effect of catalyzer, the crosslinked and room-temperature self crosslinking of realization coating of the autoxidation of utilizing the carbon-carbon double bond on the unsaturated fatty acids; The 2nd, when the Resins, epoxy Water-borne modification, with two kinds of acrylic acid or the like function monomers with self-crosslinking performance (N ?n-methylolacrylamide and methyl propenoic acid glycidyl ether), by free yl graft polymerization reaction and other acrylic monomer copolymerization, be incorporated in the lump on the Resins, epoxy molecular chain, utilize N ?n-methylolacrylamide self active group polycondensation or with system in the crosslinking reaction of carboxylic acrylic monomer, and these two kinds of self-crosslinking modes of the condensation dehydration reaction between the hydroxyl that produces after the epoxide group open loop of methyl propenoic acid glycidyl ether and realize the multiple self-crosslinking of room temperature of water-based epoxy acrylic resin emulsion.
In order to reach above purpose, present technique adopts following technical scheme:
Synthesizing of the first step unsaturated fatty acids modified epoxy ester resin
In mass fraction, be raw material with 40～50 parts of bisphenol A type epoxy resins and 50～60 parts of unsaturated fatty acidss, under the effect of 0.5～2 part of catalyzer and feed nitrogen protection, carry out esterification in the time of 120～150 ℃, after the massfraction that is reacted to unsaturated fatty acids drops to 60～70%, be warming up to 190～210 ℃ again, react that to be lower than 5mgKOH/100g to the system acid number be terminal point, make the room-temperature self crosslinking epoxy ester resin;
In such scheme, described Resins, epoxy be bisphenol A type epoxy resin E ?20, E ?12 or its mixture; Described unsaturated fatty acids is dehydrated castor oleic acid, linolenic acid, eleostearic acid, or its mixture.Described catalyzer is one or more in tetrabutyl titanate, Mono-n-butyltin, triphenylphosphine and the Tetrabutyl amonium bromide;
Synthesizing of the multiple self-crosslinking aqueous epoxy acrylic resin of the second step single-component room temperature
Solubility promoter is added in the room-temperature self crosslinking epoxy ester resin, and by percentage to the quality, control room temperature self-cross-linking epoxy ester resin solid content is 45～60%; Feed under the nitrogen protection condition, in mass fraction, 1～3 part of initiator, 22～45 parts had hydrophilic radical monomer, 8～15 parts of self-crosslinking function monomers and 0.21～0.56 part of chain-transfer agent, under 100～110 ℃, be added drop-wise in 1～3h and carry out the free radical grafting copolymerization reaction in the room-temperature self crosslinking epoxy ester resin, behind insulation 0.5～1.5h, add behind 0.5～1 initiator insulation reaction 2～4h again, insulation reaction 1～3h after being warming up to 115～125 ℃ namely obtains the multiple self-crosslinking aqueous epoxy acrylic resin of single-component room temperature at last;
In such scheme, described to have the hydrophilic radical monomer be vinylformic acid, methacrylic acid, n-butyl acrylate, vinylbenzene or methyl methacrylate; Described self-crosslinking function monomer be methyl propenoic acid glycidyl ether and N ?n-methylolacrylamide, two kinds of shared mass ratioes are 1:10～1:20; Described initiator is benzoyl peroxide; Described chain-transfer agent is n-butyl mercaptan, tert-butyl mercaptan, octyl mercaptan, positive Dodecyl Mercaptan, chooses wherein one or more; Described solubility promoter is propyl carbinol, Virahol, butyl glycol ether, propylene glycol monomethyl ether, chooses wherein one or more.
The configuration of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of the 3rd step single-component room temperature
In mass fraction, with 45～60 parts of multiple self-crosslinking aqueous epoxy acrylic resins of single-component room temperature, in the time of 40～60 ℃, add in the amine neutralizing agent of resinous acid value equivalent 70～100% and after, add 40～55 parts of deionized waters again and disperse, namely obtain the dual self-crosslinking aqueous epoxy acrylic resin emulsion of single-component.
In such scheme, neutralizing agent described in described the 3rd step configuration is triethylamine, N, N ?dimethylethanolamine, trolamine, 2 ?An Ji ?1 ?propyl alcohol, N ?the ethyl beautiful jade, choose wherein one or more, consumption is 70～100% of resin emulsion acid number equivalent.
Two-step reaction of the present invention and the configuration of final step emulsion can be carried out in same reactor, and be therefore easy to operate, save energy.Gained water-based epoxy acrylic resin emulsion smell is little, and outward appearance is faint yellow transparence, and the emulsion particle diameter that size distribution result shows is evenly distributed, and particle diameter is below 100nm.
The multiple self-crosslinking aqueous epoxy acrylic resin emulsion of this single-component room temperature through spraying, brushing or dip-coating behind the iron and steel material quality surface, seasoning got final product film forming in five days at ambient temperature, paint film is smooth transparent after the film forming, has excellent glossiness, soaking in 40 ℃ of boiling water did not have any whiting in seven days, and salt spray resistance can reach more than the 200h.
With respect to prior art, beneficial effect of the present invention is as follows:
(1) the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of single-component room temperature for preparing with the present invention, combine tack, wear resistance, erosion resistance, insulativity and the physical strength of Resins, epoxy excellence, with advantages such as the good glossiness of acrylic resin and anti-outdoor aging performances, in Resins, epoxy, pass through simultaneously self-emulsification, introduce hydrophilic radicals such as (methyl) acrylic acid carboxyl, make its Water-borne modification, not only the product nontoxic pollution-free, meet environment protection requirement, prepared emulsion particle is little, and storage stability is good.
(2) this product emulsion adopts the single-component packing, and can be at room temperature condition self-crosslinking film-forming, need not to add solidifying agent in use, film process also need not heating or radiation, therefore not only reduce energy loss and save cost, and avoided two components to pack the defective of constructing operation complexity, use convenient.
(3) aspect film performance, this emulsion difference is the single self-crosslinking of single-component coating in the past, but adopt multiple self-crosslinking structure, further improve the cross-linking density of filming, the rate of drying of paint film becomes faster, thereby makes the sticking power of filming, water tolerance, corrosion-resistant and wear resisting property obtain improving greatly.
Embodiment
For understanding the present invention better, the present invention is further illustrated below in conjunction with embodiment, but the scope of protection of present invention is not limited to the scope of embodiment statement.
Embodiment 1
The preparation method of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of single-component room temperature may further comprise the steps:
A. in being connected with the reactor of nitrogen protection; after adding 30gE-12 type Resins, epoxy and 20gE-20 type Resins, epoxy; be warming up to 100 ℃; after insulation 0.5h makes the complete fusion of E-12 type Resins, epoxy of solid state; open and stir; the mixture that adds 38g linolenic acid and 15g eleostearic acid again; and adding 0.5g catalyzer Mono-n-butyltin; insulation reaction 3h after being warming up to 140 ℃; the mass concentration of unsaturated fatty acids drops to 60% in the system at this moment; and then after being warming up to 195 ℃ behind the insulation reaction 6h system acid number be 2.8mgKOH/g, be reaction end, obtain the room-temperature self crosslinking epoxy ester resin of unsaturated fatty acids modification.
B. in the above-mentioned reactor that synthetic 40g room-temperature self crosslinking epoxy ester resin is housed, add the dilution of 60g propyl carbinol and stir and be warming up to 105 ℃, at 1.68g initiator benzoyl peroxide and the positive Dodecyl Mercaptan of 0.36g chain-transfer agent, drip the 4g methacrylic acid, 30g vinylbenzene, 6.7g n-butyl acrylate, 6.3g methyl methacrylate and 1g methyl propenoic acid glycidyl ether and 12gN-n-methylolacrylamide (with the dissolving of 40g butyl glycol ether), drip the back in the 2h and be warming up to 110 ℃ of insulation 1h again, add residue 0.42g initiator (with the dissolving of 20g propylene glycol monomethyl ether) again, continue insulation 2h, be warming up to 120 ℃ of insulation reaction 1h at last again, can obtain solid content and be 45% the multiple self-cross-linking epoxy acrylic acid resin of single-component room temperature.
C. in the 50g solid content is 45% the multiple self-cross-linking epoxy acrylic acid resin of single-component room temperature, add 1.5g neutralizing agent triethylamine and 4g deionized water, 500r/min dispersed with stirring 30min can obtain solid content and be 26% the multiple self-cross-linking epoxy acrylic acid resin emulsion of single-component room temperature.
This emulsion is light yellow transparent liquid, and smell is little, and emulsion particle diameter is 92nm, and viscosity is 300mPa.s, and acid number is 22.5mgKOH/g.After spraying to steel surface, following five days dry film forming of room temperature condition, it is smooth smooth to film, and has excellent glossiness, and soaking in 40 ℃ of boiling water did not have any whiting in seven days, and salt spray resistance can reach more than the 200h.
Embodiment 2
The preparation method of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of single-component room temperature may further comprise the steps:
A. in being connected with the reactor of nitrogen protection; after adding 40gE-12 type Resins, epoxy; be warming up to 110 ℃; after insulation 0.5h makes the complete fusion of E-12 type Resins, epoxy of solid state; open and stir; the mixture that adds 30g dehydrated castor oleic acid and 20g eleostearic acid again; and adding 2g catalyzer triphenylphosphine; insulation reaction 3h after being warming up to 150 ℃; the mass concentration of unsaturated fatty acids drops to 70% in the system at this moment; and then after being warming up to 200 ℃ behind the insulation reaction 5h system acid number be 3.1mgKOH/g, be reaction end, obtain the room-temperature self crosslinking epoxy ester resin of unsaturated fatty acids modification.
B. in the above-mentioned reactor that is equipped with synthetic 55g room-temperature self crosslinking epoxy ester resin, add the dilution of 50g propyl carbinol and stir and be warming up to 110 ℃, under the effect of 2.4g initiator benzoyl peroxide and 0.27g chain-transfer agent octyl mercaptan, drip the 4g methacrylic acid, 13g vinylbenzene, 4.7g n-butyl acrylate, 2.3g methyl methacrylate and 1g methyl propenoic acid glycidyl ether and 20gN-n-methylolacrylamide (with the dissolving of 30g butyl glycol ether), drip the back in the 2h and be warming up to 115 ℃ of insulation 1h again, add residue 0.55g initiator (with the dissolving of 40g propylene glycol monomethyl ether) again, continue insulation 2h, be warming up to 120 ℃ of insulation reaction 1h at last again, can obtain solid content and be 50% the multiple self-cross-linking epoxy acrylic acid resin of single-component room temperature.
C. in the 55g solid content is 50% the multiple self-cross-linking epoxy acrylic acid resin of single-component room temperature, add 1.7g neutralizing agent N ' N ?dimethylethanolamine and 4g deionized water, 500r/min dispersed with stirring 30min can obtain solid content and be 28% the multiple self-cross-linking epoxy acrylic acid resin emulsion of single-component room temperature.
This emulsion is light yellow transparent liquid, and smell is little, and emulsion particle diameter is 89nm, and viscosity is 275mPa.s, and acid number is 21mgKOH/g.After spraying to steel surface, following five days dry film forming of room temperature condition, it is smooth smooth to film, and has excellent glossiness, and soaking in 40 ℃ of boiling water did not have any whiting in seven days, and salt spray resistance can reach more than the 200h.
Embodiment 3:
The preparation method of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of single-component room temperature may further comprise the steps:
A. in being connected with the reactor of nitrogen protection; after adding 30gE-12 type Resins, epoxy and 10gE-20 type Resins, epoxy; be warming up to 100 ℃; after insulation 0.5h makes the complete fusion of E-12 type Resins, epoxy of solid state; open and stir; add the 37g linolenic acid again; and adding 1g catalyzer Tetrabutyl amonium bromide; insulation reaction 2h after being warming up to 160 ℃; the mass concentration of unsaturated fatty acids drops to 65% in the system at this moment; and then after being warming up to 210 ℃ behind the insulation reaction 6h system acid number be 2.8mgKOH/g, be reaction end, obtain the room-temperature self crosslinking epoxy ester resin of unsaturated fatty acids modification.
B. in the above-mentioned reactor that is equipped with synthetic 70g room-temperature self crosslinking epoxy ester resin, add 40g propyl carbinol dilution epoxy ester and stir and be warming up to 105 ℃, under the effect of 1.7g initiator benzoyl peroxide and 0.24g chain-transfer agent n-butyl mercaptan, drip the 4g methacrylic acid, 6.7g vinylbenzene, 2.3g methyl methacrylate and 1.5g methyl propenoic acid glycidyl ether and 15.5gN-n-methylolacrylamide (with the dissolving of 30g butyl glycol ether), drip the back in the 2h and be warming up to 115 ℃ of insulation 1h again, add residue 0.86g initiator (with the dissolving of 10g propylene glycol monomethyl ether) again, continue insulation 2h, be warming up to 125 ℃ of insulation reaction 1h at last again, can obtain solid content and be 55% the multiple self-cross-linking epoxy acrylic acid resin of single-component room temperature.
C. in the 60g solid content is 55% the multiple self-cross-linking epoxy acrylic acid resin of single-component room temperature, add 1.9g neutralizing agent 2 ?An Ji ?1 ?propyl alcohol and 4g deionized water, 500r/min dispersed with stirring 30min can obtain solid content and be 30% the multiple self-cross-linking epoxy acrylic acid resin emulsion of single-component room temperature.
This emulsion is light yellow transparent liquid, and smell is little, and emulsion particle diameter is 80nm, and viscosity is 290mPa.s, and acid number is 22.5mgKOH/g.After spraying to steel surface, following five days dry film forming of room temperature condition, it is smooth smooth to film, and has excellent glossiness, and soaking in 40 ℃ of boiling water did not have any whiting in seven days, and salt spray resistance can reach more than the 200h.
At above-described embodiment, each embodiment products obtained therefrom is detected according to the coating industry national standard, detected result is as shown in table 1.The basic test data of the detected result of table 1 and product, compare with existing water-borne coatings on the market, product nontoxic pollution-free of the present invention has been described, emulsion particle diameter is little, stability in storage good, the brushing performance is good, paint film smooth smooth, glossiness is high, keeps simultaneously the strong adhesion, water-tolerant of solvent epoxy varnish etching ground, excellent properties such as corrosion-resistant and wear-resisting again.
The multiple self-crosslinking aqueous epoxy acrylic resin emulsion of the resulting single-component room temperature of three kinds of embodiment of table 1 and coating property thereof
Claims (7)
1. the preparation method of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of single-component room temperature is characterized in that may further comprise the steps:
Synthesizing of the first step unsaturated fatty acids modified epoxy ester resin
In mass fraction, be raw material with 40～50 parts of bisphenol A type epoxy resins and 50～60 parts of unsaturated fatty acidss, under the effect of 0.5～2 part of catalyzer and feed nitrogen protection, carry out esterification in the time of 120～150 ℃, after the massfraction that is reacted to unsaturated fatty acids drops to 60～70%, be warming up to 190～210 ℃ again, react that to be lower than 5mgKOH/100g to the system acid number be terminal point, make the room-temperature self crosslinking epoxy ester resin; Described catalyzer is one or more in tetrabutyl titanate, Mono-n-butyltin, triphenylphosphine and the Tetrabutyl amonium bromide;
Synthesizing of the multiple self-crosslinking aqueous epoxy acrylic resin of the second step single-component room temperature
Solubility promoter is added in the room-temperature self crosslinking epoxy ester resin, and by percentage to the quality, control room temperature self-cross-linking epoxy ester resin solid content is 45～60%; Feed under the nitrogen protection condition, in mass fraction, 1～3 part of initiator, 22～45 parts had hydrophilic radical monomer, 8～15 parts of self-crosslinking function monomers and 0.21～0.56 part of chain-transfer agent, under 100～110 ℃, be added drop-wise in 1～3h and carry out the free radical grafting copolymerization reaction in the room-temperature self crosslinking epoxy ester resin, behind insulation 0.5～1.5h, add behind 0.5～1 part of initiator insulation reaction 2～4h again, insulation reaction 1～3h after being warming up to 115～125 ℃ namely obtains the multiple self-crosslinking aqueous epoxy acrylic resin of single-component room temperature at last;
It is described that to have the hydrophilic radical monomer be vinylformic acid, methacrylic acid, n-butyl acrylate, vinylbenzene or methyl methacrylate;
The methyl propenoic acid glycidyl ether that described self-crosslinking function monomer is mass ratio 1:10～1:20 and N ?n-methylolacrylamide;
Described initiator is benzoyl peroxide;
The configuration of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of the 3rd step single-component room temperature
In mass fraction, with 45～60 parts of multiple self-crosslinking aqueous epoxy acrylic resins of single-component room temperature, in the time of 40～60 ℃, add in the amine neutralizing agent of resinous acid value equivalent 70～100% and after, add 40～55 parts of deionized waters again and disperse, namely obtain the dual self-crosslinking aqueous epoxy acrylic resin emulsion of single-component.
2. according to the preparation method of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of right 1 described single-component room temperature, it is characterized in that: described bisphenol A type epoxy resin be bisphenol A type epoxy resin E ?20, E ?12 or its mixture.
3. according to the preparation method of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of right 1 described single-component room temperature, it is characterized in that: described unsaturated fatty acids is one or more in dehydrated castor oleic acid, linolenic acid and the eleostearic acid.
4. according to the preparation method of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of right 1 described single-component room temperature, it is characterized in that: described chain-transfer agent is n-butyl mercaptan, tert-butyl mercaptan, octyl mercaptan, positive Dodecyl Mercaptan or the different monooctyl ester of thiohydracrylic acid.
5. according to the preparation method of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of right 1 described single-component room temperature, it is characterized in that: described solubility promoter includes but not limited to propyl carbinol, Virahol, butyl glycol ether or propylene glycol monomethyl ether.
6. according to the preparation method of the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of right 1 described single-component room temperature, it is characterized in that: described amine neutralizing agent includes but not limited to triethylamine, N, N ?dimethylethanolamine, trolamine or 2 ?An Ji ?1 ?propyl alcohol or N ?ethyl morpholine.
7. the multiple self-crosslinking aqueous epoxy acrylic resin emulsion of single-component room temperature is characterized in that it is by any makes among the claim 1 ?6 described preparation methods.
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| CN101851396A (en) * | 2009-06-12 | 2010-10-06 | 北京金汇利应用化工制品有限公司 | Waterborne epoxy ester resin composition and preparation method thereof and water-based paint prepared from same |
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