CN104962176A - Water-based epoxy resin paint and preparation method thereof - Google Patents
Water-based epoxy resin paint and preparation method thereof Download PDFInfo
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- CN104962176A CN104962176A CN201510467429.6A CN201510467429A CN104962176A CN 104962176 A CN104962176 A CN 104962176A CN 201510467429 A CN201510467429 A CN 201510467429A CN 104962176 A CN104962176 A CN 104962176A
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Abstract
The invention discloses a water-based epoxy resin paint and a preparation method thereof. The water-based epoxy resin paint comprises a water-based epoxy resin emulsion, a water-based epoxy resin curing agent, a pigment, a filler, a leveling agent, a defoaming agent, a wetting agent, a thickener, a pigment dispersing agent and a film-forming assistant. The preparation method comprises the following steps: uniformly stirring the film-forming assistant, thickener, pigment dispersing agent, defoaming agent and wetting agent in a high-speed dispersion machine at 10-30 DEG C, adding the pigment and filler, sufficiently dispersing, adding the epoxy resin emulsion, stirring uniformly, adding the leveling agent, sufficiently dispersing, adding the water-based curing agent according to the formula amount, and dispersing to obtain the water-based epoxy resin paint. The paint disclosed by the invention has the advantages of favorable room-temperature storage stability, excellent mechanical properties and high corrosion resistance, and can be used in the fields of environmental protection, ships, automobiles and the like. The method has the advantages of simple technique, environment friendliness, high coated film quality and wide application prospects.
Description
Technical field
The present invention relates to epoxypaint technical field, more specifically, relate to a kind of aqueous epoxide resin paint and preparation method thereof.
Background technology
Water soluble paint is using water as solvent, and VOC content is extremely low, environmentally safe, so be the development trend of current coating industry with water-borne coatings replacement solvent based coating.And the annual VOC volatile quantity of solvent based coating is more than 2,000,000 tons, the destructiveness for environment is comparatively large, is therefore engaged in the research of water-borne coatings, can not only brings economic benefit, and also beneficial for the protection of environment.But current China water-borne coatings share of market is lower, human consumer is not enough to water-borne coatings understanding, and use idea not strong, what have even holds the suspicious attitude, and water-borne coatings is in some aspects really not as good as solvent based coating, so research and development and popularization water-borne coatings shoulder heavy responsibilities.
Along with the development of science and technology, aqueous epoxide resin paint is because of its strong adhesion, and good combination property, the features such as high-environmental, obtain in recent years and develop widely, and it is widely used in the Material Fields such as environmental protection, building, floor, automobile and optical fiber.Current aqueous epoxide resin paint, although the feature meeting low VOC high-environmental, still has following deficiency: fragility is large, impact resistance is general, antiseptic property can not meet in the environmental applications having more high corrosion resistance to require.Therefore, develop a kind of good toughness, antiseptic property aqueous epoxide resin paint that is better, excellent combination property has important scientific meaning and economic worth.
Summary of the invention
For the present situation of existing epoxypaint technology with not enough, object of the present invention aim to provide a kind of environmental protection, the aqueous epoxide resin paint of antiseptic property excellence and preparation method thereof.
Aqueous epoxide resin paint provided by the invention, its recipe ingredient mainly comprises with parts by weight:
Aqueous epoxy resin emulsion 100 parts
Aqueous epoxy resin curing agent 20-30 part
Pigment 20-30 part
Filler 15-25 part
Flow agent 1-6 part
Defoamer 1-4 part
Wetting agent 1-3 part
Thickening material 2-4 part
Pigment dispersing agent 1-3 part
Film coalescence aid 2-3 part.
In above-mentioned aqueous epoxide resin paint technical scheme, preferentially select the aqueous epoxy resin emulsion comprising following preparation component (parts by weight) and form:
Epoxy resin 100 parts
Emulsifying agent 7-20 part
Organic solvent 5-10 part
Deionized water 100-120 part.
Wherein the preparation component of emulsifying agent mainly comprises with parts by weight:
Polyethylene Octylphenol Ether 100 parts
Polyoxyethylene 20 sorbitan monolaurate 300-500 part
Sodium lauryl sulphate 2-10 part.
In above-mentioned aqueous epoxide resin paint technical scheme, preferentially select the aqueous epoxy resin curing agent comprising following preparation component (parts by weight) and form:
Epoxy resin 100 parts
Diamine 50-200 part
Organic solvent 30-50 part
End-capping reagent 50-100 part
Acetic acid 1-3 part
Deionized water 230-450 part.
The described epoxy resin trade mark is the one in E-51, E-44, E-42 or E-35 of bisphenol A-type.
Described diamine preferentially selects liquid diamines, pays the utmost attention to and selects diethylenetriamine, triethylene tetramine, tetraethylene pentamine, five ethene hexamines, quadrol, different Buddhist diketone diamines.
Described organic solvent, can pay the utmost attention to and be selected from acetone, butanone, ethanol, ethylene glycol monomethyl ether, diethylene glycol dimethyl ether, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, butyl glycol ether etc.; Can pay the utmost attention to further and be selected from ethylene glycol monomethyl ether, diethylene glycol dimethyl ether and propylene glycol monomethyl ether.
Described end-capping reagent, pay the utmost attention to and select phenyl glycidyl ether, n-butyl glycidyl ether, glycidyl allyl ether, diethylene glycol diglycidyl glyceryl ether, hexyl diglycidylether etc., pay the utmost attention to further and select phenyl glycidyl ether, n-butyl glycidyl ether.
Aqueous epoxy resin emulsion specifically adopts following method to prepare:
1) by the Polyethylene Octylphenol Ether of 100 weight parts, the polyoxyethylene 20 sorbitan monolaurate of 300-500 weight part, the sodium lauryl sulphate of 2-10 weight part obtain emulsifying agent through fully reacting at 70 DEG C;
2) by the epoxy resin of 100 weight parts under 6000r/min high-shear machine, the mentioned emulsifier and the 5-10 part organic solvent that add 7-20 weight part mix, in system, deionized water is dripped while stirring at 70 DEG C, oil-in-water is become by water-in-oil to system, stirring reaction 0.5-2h, namely obtains aqueous epoxy resin emulsion afterwards.
Described waterborne curing agent can specifically adopt following method to prepare: 100 parts of epoxy resin, 50-200 part diamine are mixed with 30-50 part organic solvent, at 60-75 DEG C, reaction is no less than 4h, agitation and dropping 50-100 part end-capping reagent afterwards, at 80-90 DEG C, reaction is no less than 2h, agitation and dropping 1-3 part acetic acid again, drip rear maintenance and be no less than 20min, underpressure distillation removing organic solvent, agitation and dropping 230-450 part deionized water, after dropwising, at 60-65 DEG C, reaction is no less than 1h, namely obtains waterborne curing agent.
Aqueous epoxide resin paint disclosed by the invention is prepared by following method: 2-3 part film coalescence aid, 2-4 part thickening material, 1-3 part pigment dispersing agent, 1-4 part defoamer, 1-3 part wetting agent are placed in high speed dispersor at 10-30 DEG C, disperse under the rotating speed of 1400-2000rpm, add 20-30 part pigment and 15-25 part filler afterwards, 100 parts of epoxy resin latexes are added after abundant dispersion, add 1-6 part flow agent after stirring, fully add 20-30 part waterborne curing agent after dispersion and carry out again disperseing namely to obtain aqueous epoxide resin paint.
Illustrate further, described film coalescence aid is propandiol butyl ether or 1-Methoxy-2-propyl acetate.
Illustrate further, described thickening material is the one in polyacrylamide, polyvinyl alcohol, polyoxyethylene, modified polyacrylic acid, Polyacrylate Emulsion.
Illustrate further, described pigment dispersing agent is the one in hydrolytic polymaleic anhydride, glyceryl monostearate, Tristearoylglycerol.
Illustrate further, described defoamer is the one in polyoxyethylene polyoxypropylene tetramethylolmethane ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether and polyoxyethylene polyoxypropylene glyceryl ether.
Illustrate further, described wetting agent is the one in ethanol, propylene glycol, glycerine.
Illustrate further, described pigment, filler are respectively red iron oxide, calcium carbonate.
Illustrate further, described flow agent is the one in polydimethylsiloxane, polyether polyester modified organic silicon oxygen alkane, alkyl-modified organo-siloxane.
Aqueous epoxide resin paint provided by the invention is two Component System, in the curing process existing chemical reaction processes, has again physical diffusion process.Chemical reaction process is that solidifying agent and resin carry out crosslinking reaction, makes molecular chain be cross-linked into three dimensional structure by linear structure and solidify, the evaporation of physical diffusion process mainly moisture with solidifying agent to the intragranular diffusion of epoxy emulsion.Along with the carrying out of curing reaction, moisture evaporate, epoxy particle and solidifying agent close to each other, formed tightly packed and can be good at carrying out cross-linking and curing reaction.
Novel aqueous epoxypaint advantage provided by the invention is: have excellent package stability, and film forming properties is good, and sticking power reaches 1-2 level, mechanical mechanics property is good, shock-resistance reaches 50cm, and chemical proofing is excellent, and erosion resistance can reach use standard.Novel aqueous epoxypaint provided by the invention is prepared simple and convenient, have pollution-free, environmental friendliness, film quality are high, with low cost and the feature that has wide range of applications.Water-borne coatings of the present invention is a kind of environmental protection Chemicals, can be applicable to the Material Fields such as environmental protection, building, floor, automobile and optical fiber.
Embodiment
Embodiment 1:
20g Polyethylene Octylphenol Ether is mixed with 100g polyoxyethylene 20 sorbitan monolaurate, is warming up to 70 DEG C, drip 0.1g sodium lauryl sulphate, under nitrogen protection and stirring reaction 4h, obtained emulsifying agent.Under 6000r/min high-shear machine, emulsifying agent and the 5g propylene glycol monomethyl ether of 15g is added in 100g epoxy resin E-51, mix, in system, 120mL deionized water is dripped while stirring at 70 DEG C, oil-in-water is become by water-in-oil to system, stirring reaction 2h, obtains aqueous epoxy resin emulsion afterwards.
32.2g triethylene tetramine is placed in 250mL round-bottomed flask, be warming up to 60 DEG C, stir lower dropping 28g epoxy resin solution (its epoxy resin E-51 20g, diethylene glycol dimethyl ether 8g), after being added dropwise to complete, react 4h at 65 DEG C, backward system in drip 13g n-butyl glycidyl ether, at 80 DEG C, react 2h.In system, add 0.5g acetic acid again, after 30min, underpressure distillation is except desolventizing, drips 70g deionized water, after dropwising, at 65 DEG C, reacts 1h, obtained aqueous epoxy resin curing agent.
2g film coalescence aid, 2g thickening material, 1g pigment dispersing agent, 1g defoamer, 1g wetting agent are placed in high speed dispersor at 10-30 DEG C, 5min is disperseed under the rotating speed of 1400-2000rpm, add 20g pigment and 15g filler redispersion 5min afterwards, 100g epoxy resin latex is added after abundant dispersion, 3g flow agent is added after stirring, 30g waterborne curing agent redispersion 5min is added, obtained aqueous epoxide resin paint after abundant dispersion.
This coating property is excellent, Main Mechanical and chemical proofing as follows:
Embodiment 2:
Identical with embodiment 1, but the amount of aqueous epoxy resin curing agent becomes 25g from 30g.
The performance of this coating is as follows:
Embodiment 3:
Identical with embodiment 1, but the amount of aqueous epoxy resin curing agent becomes 20g from 30g.
The performance of this coating is as follows:
Embodiment 4:
Identical with embodiment 1, but epoxy resin becomes E-44 from E-51.The performance of this coating is close with example 1.
Embodiment 5:
Identical with embodiment 1, but solvent becomes ethylene glycol monomethyl ether by propylene glycol monomethyl ether.The performance of this coating is close with example 1.
Embodiment 6:
Identical with embodiment 1, but amine becomes tetraethylene pentamine from triethylene tetramine, and consumption becomes 34.2g from 32.2g, and the performance of this coating is close with example 1.
Embodiment 7:
Identical with embodiment 1, but end-capping reagent becomes phenyl glycidyl ether from n-butyl glycidyl ether, and consumption becomes 15g from 13g, and the performance of this coating is close with example 1.
Claims (7)
1. an aqueous epoxide resin paint, its recipe ingredient mainly comprises with parts by weight:
Aqueous epoxy resin emulsion 100 parts
Aqueous epoxy resin curing agent 20-30 part
Pigment 20-30 part
Filler 15-25 part
Flow agent 1-6 part
Defoamer 1-4 part
Wetting agent 1-3 part
Thickening material 2-4 part
Pigment dispersing agent 1-3 part
Film coalescence aid 2-3 part.
2. aqueous epoxide resin paint according to claim 1, is characterized in that the preparation component of described aqueous epoxy resin emulsion mainly comprises with parts by weight:
Epoxy resin 100 parts
Emulsifying agent 7-20 part
Organic solvent 5-10 part
Deionized water 100-120 part
Wherein the preparation component of emulsifying agent mainly comprises with parts by weight:
Polyethylene Octylphenol Ether 100 parts
Polyoxyethylene 20 sorbitan monolaurate 300-500 part
Sodium lauryl sulphate 2-10 part.
3. aqueous epoxide resin paint according to claim 1, is characterized in that the preparation component of described aqueous epoxy resin curing agent mainly comprises with parts by weight:
Epoxy resin 100 parts
Diamine 50-200 part
Organic solvent 30-50 part
End-capping reagent 50-100 part
Acetic acid 1-3 part
Deionized water 230-450 part.
4. aqueous epoxide resin paint according to claim 2, is characterized in that the preparation method of described epoxy resin latex is as follows:
(1) by the Polyethylene Octylphenol Ether of 100 weight parts, the polyoxyethylene 20 sorbitan monolaurate of 300-500 weight part, the sodium lauryl sulphate of 2-10 weight part obtain emulsifying agent through fully reacting at 70 DEG C;
(2) by the epoxy resin of 100 weight parts under 6000r/min high-shear machine, the mentioned emulsifier and the 5-10 part organic solvent that add 7-20 weight part mix, in system, deionized water is dripped while stirring at 70 DEG C, oil-in-water is become by water-in-oil to system, stirring reaction 0.5-2h, namely obtains aqueous epoxy resin emulsion afterwards.
5. aqueous epoxide resin paint according to claim 3, it is characterized in that the preparation method of described waterborne curing agent is as follows: by 100 parts of epoxy resin, 50-200 part diamine mixes with 30-50 part organic solvent, at 60-75 DEG C, reaction is no less than 4h, agitation and dropping 50-100 part end-capping reagent afterwards, at 80-90 DEG C, reaction is no less than 2h, agitation and dropping 1-3 part acetic acid again, drip rear maintenance and be no less than 20min, underpressure distillation removing organic solvent, agitation and dropping 230-450 part deionized water, after dropwising, at 60-65 DEG C, reaction is no less than 1h, namely waterborne curing agent is obtained.
6. the preparation method of the arbitrary described aqueous epoxide resin paint of claim 1 to 5, is characterized in that the described epoxy resin trade mark is the one in E-51, E-44, E-42 or E-35 of bisphenol A-type.
7. the preparation method of the arbitrary described aqueous epoxide resin paint of claim 1 to 5, it is characterized in that, film coalescence aid, thickening material, pigment dispersing agent, defoamer, wetting agent are placed in high speed dispersor and stir at 10-30 DEG C, add pigment and filler afterwards, epoxy resin latex is added after abundant dispersion, add flow agent after stirring, the waterborne curing agent fully adding formula ratio after dispersion carries out disperseing namely to obtain aqueous epoxide resin paint again.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105176313A (en) * | 2015-10-20 | 2015-12-23 | 苏州赛斯德工程设备有限公司 | Waterborne anticorrosive coating and preparation method |
| CN106010068A (en) * | 2016-05-31 | 2016-10-12 | 刘洪建 | Steel wire thread sleeve coating |
| CN106009819A (en) * | 2016-05-31 | 2016-10-12 | 刘洪建 | High-performance steel plate coating |
| CN106905816A (en) * | 2017-03-06 | 2017-06-30 | 华东理工大学 | Super-hydrophobic oleophobic coating and preparation method thereof and application method |
| CN107163228A (en) * | 2017-06-25 | 2017-09-15 | 四川颐乐贸易有限公司 | A kind of environment-friendly type aqueous epoxy curing agent and preparation method thereof |
| CN112646455A (en) * | 2020-12-24 | 2021-04-13 | 浩力森涂料（上海）有限公司 | Water-based epoxy anticorrosive paint for containers, and preparation method and application thereof |
| CN112724785A (en) * | 2020-12-29 | 2021-04-30 | 安徽酉阳防水科技有限公司 | High-environmental-protection water-based waterproof coating |
| CN116475031A (en) * | 2023-02-13 | 2023-07-25 | 苏州安踏脚手架工程有限公司 | Paint spraying process for scaffold steel pipe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087611A (en) * | 2013-01-22 | 2013-05-08 | 四川大学 | Water-borne epoxy resin paint and preparation method thereof |
| CN104530902A (en) * | 2014-12-11 | 2015-04-22 | 青岛佰众化工技术有限公司 | Water-based anticorrosive paint and preparation method thereof |
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2015
- 2015-08-03 CN CN201510467429.6A patent/CN104962176A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087611A (en) * | 2013-01-22 | 2013-05-08 | 四川大学 | Water-borne epoxy resin paint and preparation method thereof |
| CN104530902A (en) * | 2014-12-11 | 2015-04-22 | 青岛佰众化工技术有限公司 | Water-based anticorrosive paint and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105176313A (en) * | 2015-10-20 | 2015-12-23 | 苏州赛斯德工程设备有限公司 | Waterborne anticorrosive coating and preparation method |
| CN106010068A (en) * | 2016-05-31 | 2016-10-12 | 刘洪建 | Steel wire thread sleeve coating |
| CN106009819A (en) * | 2016-05-31 | 2016-10-12 | 刘洪建 | High-performance steel plate coating |
| CN106905816A (en) * | 2017-03-06 | 2017-06-30 | 华东理工大学 | Super-hydrophobic oleophobic coating and preparation method thereof and application method |
| CN107163228A (en) * | 2017-06-25 | 2017-09-15 | 四川颐乐贸易有限公司 | A kind of environment-friendly type aqueous epoxy curing agent and preparation method thereof |
| CN112646455A (en) * | 2020-12-24 | 2021-04-13 | 浩力森涂料（上海）有限公司 | Water-based epoxy anticorrosive paint for containers, and preparation method and application thereof |
| CN112724785A (en) * | 2020-12-29 | 2021-04-30 | 安徽酉阳防水科技有限公司 | High-environmental-protection water-based waterproof coating |
| CN116475031A (en) * | 2023-02-13 | 2023-07-25 | 苏州安踏脚手架工程有限公司 | Paint spraying process for scaffold steel pipe |
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