CN103923549A - One-component water-based finish coating made from acrylic amino resin and preparation method of coating - Google Patents
One-component water-based finish coating made from acrylic amino resin and preparation method of coating Download PDFInfo
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- CN103923549A CN103923549A CN201410155112.4A CN201410155112A CN103923549A CN 103923549 A CN103923549 A CN 103923549A CN 201410155112 A CN201410155112 A CN 201410155112A CN 103923549 A CN103923549 A CN 103923549A
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Abstract
The invention relates to a one-component water-based finish coating made from acrylic amino resin. In parts by weight, each 100 parts of the coating comprises 20-40 parts of polyethylene wax grafted modified acrylic resin, wherein the polyethylene wax grafted modified acrylic resin is adopted as the acrylic amino resin, and a wax emulsion is not added to the coating. According to the coating, the polyethylene wax grafted modified acrylic resin is adopted for replacing a wax emulsion adding mode, so that the properties such as wear resistance, mechanical properties and the like of the coating are improved; in addition, polyethylene wax is directly added into a reaction kettle, so that the rate of grafting polyethylene wax to a molecular chain of the acrylic resin can be remarkably increased to not less than 97%. The water-based coating is safe and environment-friendly to prepare and use, high in gloss and fullness, and excellent in mechanical properties.
Description
[technical field]
The invention belongs to acrylic-amino resin technical field of coatings, relate to a kind of water-based Lacquer finish single-component coating and preparation method of the acrylic-amino resin with the high weather resistant of the high damage resistant of high abrasion.
[background technology]
Along with people are more and more higher to the requirement of environmental protection, solvent based coating is replaced by water-borne coatings gradually, in aqueous priming paint (as electrophoretic paint), water-based, be coated with and engender, but water-based overprint coating is because the performances such as gloss appearance, fullness ratio, scratch resistance, wear resistance are difficult to reach the performance of solvent-borne type finishing paint, so also there is no spread.But through practitioner's unremitting effort, prepare gradually the water-based overprint coating that reaches solvent-borne type finishing paint performance, Environmental Safety.
Patent of invention (CN103305043A) discloses a kind of thermoset acrylics wheel hub dedicated hood lac varnish, paint film is smooth, become thickness, levelling is good, fullness ratio is high, gloss is high, hardness is high and have excellent weather resistance, but this finishing paint is solvent type, and VOC content is high, not environmental protection, constructs also dangerous.
So be badly in need of developing a water-based overprint coating with the high weather resistant of the high damage resistant of high abrasion, meet or exceed the performance of solvent-borne type finishing paint.
[summary of the invention]
The object of this invention is to provide the high weather resistant water-based of the high damage resistant of a kind of high abrasion overprint coating and preparation method thereof, this product has mechanical property and the scratch resistance of high gloss, high fullness ratio, excellence, aqueous, environmental protective safety, high-wearing feature (1000g/800 turns) weightlessness≤0.010g, also there is very excellent weather resistance, through 2500 hours QUV weathering tests, loss of gloss rate≤10%, Δ E≤1.0.
In order to solve the problems of the technologies described above, the invention provides a kind of water-based Lacquer finish single-component coating of acrylic-amino resin, the acrylic resin that raw material comprises adopts polyethylene wax grafted and modified acrylic resin resin, consumption is the polyethylene wax grafted and modified acrylic resin resin that contains 20-40 weight part in every 100 weight part coating, have and this coating in do not add wax emulsion.
The present invention also comprises the preparation method of this coating, described preparation method for coating is that 20-40 weight account polyethylene wax grafted and modified acrylic resin resin and 6-12 weight part aminoresin are added in reaction vessel and stirs and mix for 30 minutes, then add 0.4-0.8 weight part neutralizing agent to stir 30 minutes, again stirred 1 hour disposable 46-72.8 parts by weight of deionized water adding in reaction vessel, then add 0.1-0.4 weight part flow agent, 0.2-0.5 weight part thickening material and 0.1-0.3 weight part siccative, stir 1 hour, whole preparation process reaction vessel temperature is controlled at 30-45 DEG C, adopt filtering net to filter discharging, obtain described water-based overprint coating.
The beneficial effect of water-based overprint coating of the present invention is: adopt polyethylene wax grafted and modified acrylic resin resin, replace the mode by adding wax emulsion, improve the wear resistance of coating, the performances such as mechanical property, and adopt polyethylene wax directly to add in reactor, can significantly improve polyethylene wax and be grafted on acrylic resin molecular chain, percentage of grafting >=97%, this coating is water-borne coatings, preparation and use safety, environmental protection; There is mechanical property and the scratch resistance of high gloss, high fullness ratio, excellence; There is high-wearing feature (1000g/800 turns) weightlessness≤0.010g, also there is very excellent weather resistance, through 2500 hours QUV weathering tests, loss of gloss rate≤10%, Δ E≤1.0.
On the basis of technique scheme, the present invention can also do following concrete optimization.
Further, polyethylene wax grafted and modified acrylic resin resin is prepared by free radical reaction by polyethylene wax and acrylic resin, and it is as follows that it prepares scheme:
By 5-7 parts by weight of acrylic acid, 9-13 weight part Rocryl 410,10-16 parts by weight of methylmethacrylate, the positive butyl ester of 11-19 parts by weight of acrylic acid, 3-4.5 weight part tertbutyl peroxide mixes and obtains mixed solution a, stand-by;
The tertbutyl peroxide of 1-1.5 weight part and 3-9 weight part ethylene glycol monobutyl ether are mixed and obtain mixed solution b, stand-by;
By 10-18 weight part propylene glycol monobutyl ether, 14-26 weight part diethylene glycol monobutyl ether and 8-12 weight account polyethylene wax add in the reaction vessel with agitator and prolong, lead to nitrogen, be warmed up to 145 DEG C, start to drip mixed solution a, within 5 hours, drip off rear insulation 1 hour, then drip mixed solution b, drip off half an hour, then be warmed up to 155 DEG C of insulations 3 hours, then cool to 45 DEG C with bottom discharge, obtain described polyethylene wax grafted and modified acrylic resin resin.
The water-based Lacquer finish single-component coating of this acrylic-amino resin also specifically contains 6-12 weight part aminoresin, 46-72.8 parts by weight of deionized water, and all the other are auxiliary agent.
Auxiliary agent and consumption are preferably 0.4-0.8 weight part neutralizing agent, 0.1-0.4 weight part flow agent, 0.2-0.5 weight part thickening material, 0.1-0.3 weight part siccative.
Neutralizing agent is ammoniacal liquor, trolamine or N, any one in N-diethylethanolamine.Water-based flow agent is selected from any one in commercially available UNIQFLOW372S, moral modest 835 or BYK354.Water-based thickener is selected from any one in commercially available Tech9040, Borchi Gel0435 or BYK420.Siccative is selected from any one in commercially available Nacure1419 or Nacure2107.
[embodiment]
Below principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
1) described polyethylene wax grafted and modified acrylic resin resin formula:
Press formula ratio by vinylformic acid, Rocryl 410, methyl methacrylate, n-butyl acrylate and 3/4ths tertbutyl peroxide mix stand-by, are called mixed solution a; By formula ratio, 1/4th tertbutyl peroxide and ethylene glycol monobutyl ether are mixed stand-byly, be called mixed solution b.Press formula ratio by propylene glycol monobutyl ether, diethylene glycol monobutyl ether and polyethylene wax add in the reaction vessel with agitator and prolong, lead to nitrogen, be warmed up to 145 DEG C, start to drip mixed solution a, within 5 hours, drip off rear insulation 1 hour, then drip mixed solution b, drip off half an hour, then be warmed up to 155 DEG C of insulations 3 hours, then cool to 45 DEG C with bottom discharge, obtain described polyethylene wax grafted and modified acrylic resin resin.
2) described water-based overprint coating formula:
By formula ratio, polyethylene wax grafted and modified acrylic resin resin and benzene are added in reaction vessel and stir and mix for 30 minutes for aminoresin, then add neutralizing agent N, N-diethylethanolamine stirs 30 minutes, again stirred 1 hour disposable deionized water adding in reaction vessel, then add that flow agent moral is modest 835, thickening material BYK420 and siccative Nacure1419, stir 1 hour, whole preparation process reaction vessel temperature is controlled at 30-45 DEG C.Adopt filtering net to filter discharging, obtain described water-based overprint coating.
Embodiment 2
1) described polyethylene wax grafted and modified acrylic resin resin formula:
Press formula ratio by vinylformic acid, Rocryl 410, methyl methacrylate, n-butyl acrylate and 3/4ths tertbutyl peroxide mix stand-by, are called mixed solution a; By formula ratio, 1/4th tertbutyl peroxide and ethylene glycol monobutyl ether are mixed stand-byly, be called mixed solution b.Press formula ratio by propylene glycol monobutyl ether, diethylene glycol monobutyl ether and polyethylene wax add in the reaction vessel with agitator and prolong, lead to nitrogen, be warmed up to 145 DEG C, start to drip mixed solution a, within 5 hours, drip off rear insulation 1 hour, then drip mixed solution b, drip off half an hour, then be warmed up to 155 DEG C of insulations 3 hours, then cool to 45 DEG C with bottom discharge, obtain described polyethylene wax grafted and modified acrylic resin resin.
2) described water-based overprint coating formula:
By formula ratio, the aminoresin of polyethylene wax grafted and modified acrylic resin resin and methyl-etherified is added in reaction vessel and stirs and mix for 30 minutes, then add neutralizing agent ammoniacal liquor to stir 30 minutes, again stirred 1 hour disposable deionized water adding in reaction vessel, then add flow agent UNIQFLOW372S, thickening material Tech9040 and siccative Nacure2107, stir 1 hour, whole preparation process reaction vessel temperature is controlled at 30-45 DEG C.Adopt filtering net to filter discharging, obtain described water-based overprint coating.
Embodiment 3
1) described polyethylene wax grafted and modified acrylic resin resin formula:
Press formula ratio by vinylformic acid, Rocryl 410, methyl methacrylate, n-butyl acrylate and 3/4ths tertbutyl peroxide mix stand-by, are called mixed solution a; By formula ratio, 1/4th tertbutyl peroxide and ethylene glycol monobutyl ether are mixed stand-byly, be called mixed solution b.Press formula ratio by propylene glycol monobutyl ether, diethylene glycol monobutyl ether and polyethylene wax add in the reaction vessel with agitator and prolong, lead to nitrogen, be warmed up to 145 DEG C, start to drip mixed solution a, within 5 hours, drip off rear insulation 1 hour, then drip mixed solution b, drip off half an hour, then be warmed up to 155 DEG C of insulations 3 hours, then cool to 45 DEG C with bottom discharge, obtain described polyethylene wax grafted and modified acrylic resin resin.
2) described water-based overprint coating formula:
By formula ratio, the aminoresin of polyethylene wax grafted and modified acrylic resin resin and the mixed etherificate of methyl butyl is added in reaction vessel and stirs and mix for 30 minutes, then add neutralizing agent trolamine to stir 30 minutes, again stirred 1 hour disposable deionized water adding in reaction vessel, then add flow agent BYK354, thickening material Borchi Gel0435 and siccative Nacure1419, stir 1 hour, whole preparation process reaction vessel temperature is controlled at 30-45 DEG C.Adopt filtering net to filter discharging, obtain described water-based overprint coating.
The high weather resistant water-based of the high damage resistant of the high abrasion overprint coating that above-described embodiment 1-3 is made carries out making sheet test, sheet material is phosphatization plate, adopt the electrophoresis bottom surface unification HR-4000 product of Hao Lisen coating (Shanghai) Co., Ltd., electrocoating paint thickness is 25-30um, solidification value is 170 DEG C/20 minutes, then spray the water-based overprint coating in embodiment, thickness is 20-25um, and solidification value is 120 DEG C/20min.
The key technical indexes that the high weather resistant water-based of the high damage resistant of the high abrasion overprint coating that embodiment 1-3 makes is prepared model is as following table
Thereby the high weather resistant water-based of the high damage resistant of the high abrasion overprint coating that makes of the present invention has high gloss, high fullness ratio, excellent mechanical property and scratch resistance, aqueous, environmental protective safety, high-wearing feature (1000g/800 turns) weightlessness≤0.010g, also there is very excellent weather resistance, through 2500 hours QUV weathering tests, loss of gloss rate≤10%, Δ E≤1.0.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the water-based Lacquer finish single-component coating of an acrylic-amino resin, raw material comprises acrylic resin, it is characterized in that acrylic resin wherein adopts polyethylene wax grafted and modified acrylic resin resin, consumption is the polyethylene wax grafted and modified acrylic resin resin that contains 20-40 weight part in every 100 weight part coating, and in this coating, does not add wax emulsion.
2. the water-based overprint coating of a kind of acrylic-amino resin as claimed in claim 1, is characterized in that polyethylene wax grafted and modified acrylic resin resin is prepared by free radical reaction by polyethylene wax and acrylic resin.
3. the water-based Lacquer finish single-component coating of a kind of acrylic-amino resin as claimed in claim 2, the preparation that it is characterized in that polyethylene wax grafted and modified acrylic resin resin is made up of following steps: by 5-7 parts by weight of acrylic acid, 9-13 weight part Rocryl 410,10-16 parts by weight of methylmethacrylate, the positive butyl ester of 11-19 parts by weight of acrylic acid, 3-4.5 weight part tertbutyl peroxide mixes and obtains mixed solution a, stand-by; The tertbutyl peroxide of 1-1.5 weight part and 3-9 weight part ethylene glycol monobutyl ether are mixed and obtain mixed solution b, stand-by;
By 10-18 weight part propylene glycol monobutyl ether, 14-26 weight part diethylene glycol monobutyl ether and 8-12 weight account polyethylene wax add in the reaction vessel with agitator and prolong, lead to nitrogen, be warmed up to 145 DEG C, start to drip mixed solution a, within 5 hours, drip off rear insulation 1 hour, then drip mixed solution b, drip off half an hour, then be warmed up to 155 DEG C of insulations 3 hours, then cool to 45 DEG C with bottom discharge, obtain described polyethylene wax grafted and modified acrylic resin resin.
4. the water-based Lacquer finish single-component coating of acrylic-amino resin as claimed in claim 1, is characterized in that also containing 6-12 weight part aminoresin, 46-72.8 parts by weight of deionized water, and all the other are auxiliary agent.
5. the water-based Lacquer finish single-component coating of acrylic-amino resin as claimed in claim 4, is characterized in that described auxiliary agent and consumption are 0.4-0.8 weight part neutralizing agent, 0.1-0.4 weight part flow agent, 0.2-0.5 weight part thickening material, 0.1-0.3 weight part siccative.
6. the water-based Lacquer finish single-component coating of a kind of acrylic-amino resin as claimed in claim 1, is characterized in that aminoresin is that the aminoresin, benzene of methyl-etherified is for any one in the aminoresin of aminoresin or the mixed etherificate of methyl butyl.
7. the preparation method of the water-based Lacquer finish single-component coating of an acrylic-amino resin, it is characterized in that 20-40 weight account polyethylene wax grafted and modified acrylic resin resin and 6-12 weight part aminoresin to add in reaction vessel and stir and mix for 30 minutes, then add 0.4-0.8 weight part neutralizing agent to stir 30 minutes, again stirred 1 hour disposable 46-72.8 parts by weight of deionized water adding in reaction vessel, then add 0.1-0.4 weight part flow agent, 0.2-0.5 weight part thickening material and 0.1-0.3 weight part siccative, stir 1 hour, whole preparation process reaction vessel temperature is controlled at 30-45 DEG C, adopt filtering net to filter discharging, obtain described water-based overprint coating.
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| CN201410155112.4A CN103923549B (en) | 2014-04-17 | 2014-04-17 | Water-based Lacquer finish one-component coating and the preparation method of acrylic-amino resin |
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| CN201410155112.4A CN103923549B (en) | 2014-04-17 | 2014-04-17 | Water-based Lacquer finish one-component coating and the preparation method of acrylic-amino resin |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418850A (en) * | 2015-11-30 | 2016-03-23 | 何晨旭 | Nano-scale core-shell type wax-acrylic polymer emulsion for coating and preparation method of nano-scale core-shell type wax-acrylic polymer emulsion |
| CN106752548A (en) * | 2016-10-14 | 2017-05-31 | 佛山沛涂科技有限公司 | A kind of water-based paint compositions of high abrasion |
| CN108642932A (en) * | 2018-04-23 | 2018-10-12 | 太和县富华绳网有限公司 | A kind of rope made of hemp of function admirable |
| CN109504198A (en) * | 2018-11-15 | 2019-03-22 | 韶关市合众化工有限公司 | A kind of preparation method of water soluble acrylic acid amino baking varnish of the paint thickness of dry film up to 60 microns |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07188605A (en) * | 1993-12-28 | 1995-07-25 | Toyo Ink Mfg Co Ltd | Water-based coating composition and metal plate made using the same |
| CN101649145A (en) * | 2009-07-22 | 2010-02-17 | 深圳市嘉卓成科技发展有限公司 | Aqueous acrylic amino resin clear coat and preparation method thereof |
| CN101712833A (en) * | 2009-12-15 | 2010-05-26 | 重庆斯耐博涂料有限公司 | Water-based environment-friendly finishing paint and preparation method thereof |
| CN102020776A (en) * | 2010-11-22 | 2011-04-20 | 陕西科技大学 | Method for preparing wax emulsion by modification on branched polyethylene wax |
| CN102993896A (en) * | 2012-10-16 | 2013-03-27 | 益阳祥瑞科技有限公司 | Amino resin aqueous finishing coating |
-
2014
- 2014-04-17 CN CN201410155112.4A patent/CN103923549B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07188605A (en) * | 1993-12-28 | 1995-07-25 | Toyo Ink Mfg Co Ltd | Water-based coating composition and metal plate made using the same |
| CN101649145A (en) * | 2009-07-22 | 2010-02-17 | 深圳市嘉卓成科技发展有限公司 | Aqueous acrylic amino resin clear coat and preparation method thereof |
| CN101712833A (en) * | 2009-12-15 | 2010-05-26 | 重庆斯耐博涂料有限公司 | Water-based environment-friendly finishing paint and preparation method thereof |
| CN102020776A (en) * | 2010-11-22 | 2011-04-20 | 陕西科技大学 | Method for preparing wax emulsion by modification on branched polyethylene wax |
| CN102993896A (en) * | 2012-10-16 | 2013-03-27 | 益阳祥瑞科技有限公司 | Amino resin aqueous finishing coating |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418850A (en) * | 2015-11-30 | 2016-03-23 | 何晨旭 | Nano-scale core-shell type wax-acrylic polymer emulsion for coating and preparation method of nano-scale core-shell type wax-acrylic polymer emulsion |
| CN106752548A (en) * | 2016-10-14 | 2017-05-31 | 佛山沛涂科技有限公司 | A kind of water-based paint compositions of high abrasion |
| CN108642932A (en) * | 2018-04-23 | 2018-10-12 | 太和县富华绳网有限公司 | A kind of rope made of hemp of function admirable |
| CN109504198A (en) * | 2018-11-15 | 2019-03-22 | 韶关市合众化工有限公司 | A kind of preparation method of water soluble acrylic acid amino baking varnish of the paint thickness of dry film up to 60 microns |
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| CN103923549B (en) | 2016-05-18 |
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Address after: No.158, Huiping Road, Nanxiang Town, Jiading District, Shanghai, 201802 Patentee after: HLS COATING (SHANGHAI) Co.,Ltd. Patentee after: HAOLISEN CHEMICAL TECHNOLOGY (JIANGSU) Co.,Ltd. Address before: No.158, Huiping Road, Nanxiang Town, Jiading District, Shanghai, 201802 Patentee before: HLS COATING (SHANGHAI) Co.,Ltd. Patentee before: HAOLISEN CHEMICAL TECHNOLOGY JIANGSU CO.,LTD. |