CN103305096B - A kind of Multifunctional undercoat and preparation method thereof - Google Patents

A kind of Multifunctional undercoat and preparation method thereof Download PDF

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Publication number
CN103305096B
CN103305096B CN201310286309.7A CN201310286309A CN103305096B CN 103305096 B CN103305096 B CN 103305096B CN 201310286309 A CN201310286309 A CN 201310286309A CN 103305096 B CN103305096 B CN 103305096B
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hydroxyl value
multifunctional
epoxy resin
undercoat
solid content
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CN103305096A (en
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刘运群
匡成杰
张龙
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HUNAN TAIZI CHEMICAL PAINT CO Ltd
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HUNAN TAIZI CHEMICAL PAINT CO Ltd
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Abstract

A kind of Multifunctional undercoat and preparation method thereof, is made up of following raw material: low hydroxyl value low-solid content epoxy resin, high hydroxyl value high solids content epoxy resin, titanium dioxide, zinc phosphate, zinc sulfide white, talcum powder, barium sulfate, carbon black, pigment, solvent, auxiliary agent.Beneficial effect of the present invention: raw material 1, used is all commercially on sale, prepares material classification few, and preparation is convenient, and the coating application scope of producing is wide, can substitute existing multiple priming paint completely.2, product of the present invention have anticorrosion, good antirust property, surface drying time are short, the feature of strong adhesion, be applicable to extensive pipelining production.3, the anti-corrosion primer that can be used as various steel structure material uses, and the ground that cannot complete pretreatment process for surface appearance complexity can direct spraying.

Description

A kind of Multifunctional undercoat and preparation method thereof
[technical field] the present invention relates to chemical field, specifically a kind of Multifunctional undercoat and preparation method thereof.
[background technology] priming paint is the first paint of brushing; be sprayed directly into the coating of substrate surface as finish paint solid foundation; its Main Function is that protection ground is subject to environmental corrosion less in the course of processing; improve the sticking power of finish paint, increase the fullness ratio of finish paint, alkali resistant and rot-resistant function are provided; ensure the uniform pickup of finish paint, make paint system play best effect.Present priming paint kind is on the market more, all pre-treatment must be carried out at substrate surface before most of basecoat paint, as polishing etc., could effectively spray, not only operation is many, and labor capacity is large, cannot complete for the ground of pretreatment process for surface appearance complexity, also there is no a kind of good priming paint at present, can by the problem solving its effective spraying.
[summary of the invention] the present invention is directed to the problems referred to above that existing priming paint exists, and provides a kind of Multifunctional undercoat that pre-treatment of substrate is less demanding, corrosion resistance nature is good, sticking power is good to constructing and preparation method thereof.
This Multifunctional undercoat, it is characterized in that, be made up of following raw material, the weight percent of raw material is: low hydroxyl value low-solid content epoxy resin 25 ~ 38%, high hydroxyl value high solids content epoxy resin 1.5 ~ 6%, titanium dioxide 18 ~ 24%, zinc phosphate 4 ~ 7%, zinc sulfide white 5 ~ 14%, talcum powder 3 ~ 8%, barium sulfate 6 ~ 13%, carbon black 0.2 ~ 0.6%, pigment 1 ~ 2.5%, solvent 8 ~ 14%, auxiliary agent 2.4 ~ 4.8%; The hydroxyl value of described low hydroxyl value low-solid content epoxy resin is 15 ~ 25, and solid content is 70 ~ 80%; The hydroxyl value of described high hydroxyl value high solids content epoxy resin is 40 ~ 50, and solid content is >=95%.
Described talcous fineness is 800 orders.
The fineness of described barium sulfate is 1000 orders.
Described pigment comprises permanent yellow, phthalocyanine blue, permanent bordeaux, medium chrome yellow medium yellow, selects different collocation of colour as required.
Described solvent is the mixed solvent of one or more compositions in pimelinketone, propyl carbinol, dimethylbenzene, toluene.
Described auxiliary agent is one or more in dispersion agent, anti-settling agent.
Described dispersion agent is 4071 dispersion agents and 5065 dispersion agents.
Described anti-settling agent is aerosil anti-settling agent.
The preparation method of Multifunctional undercoat, is characterized in that, preparation process is following steps:
One, after getting the raw materials ready, add low hydroxyl value low-solid content epoxy resin, high hydroxyl value high solids content epoxy resin, titanium dioxide, zinc sulfide white, zinc phosphate, talcum powder, barium sulfate, carbon black and pigment in a kettle. successively, then stir after adding 2/3 amount solvent;
Two, by the slip that stirs with the stir speed (S.S.) high speed dispersion of 1500 revs/min, disperse after 30 minutes, to put into sand mill grinding, be milled to fineness≤30 μm;
Three, add auxiliary agent to be uniformly dispersed, with discharging after remaining 1/3 amount solvent adjustment system viscosity≤120s.
The present invention for main film forming substance, makes coating have good sticking power, toughness, chemical resistant properties with two kinds of epoxy resin; Zinc phosphate add the corrosion resistance nature adding coating; Zinc sulfide white, titanium dioxide, barium sulfate, talcously to add and the reasonable selection of pigment gives the good outward appearance of coating and thermotolerance, reduce the lesion size economy of paint film; The levelling property that the adding of auxiliary agent improve paint film, sag prevention and the stability of paint liquid in storage process.
Beneficial effect of the present invention: raw material 1, used is all commercially on sale, prepares material classification few, and preparation is convenient, and the coating application scope of producing is wide, can substitute existing multiple priming paint completely.2, product of the present invention have anticorrosion, good antirust property, surface drying time are short, the feature of strong adhesion, be applicable to extensive pipelining production.3, the anti-corrosion primer that can be used as various steel structure material uses, and the ground that cannot complete pretreatment process for surface appearance complexity can direct spraying.
[embodiment] sets forth making processes of the present invention below in conjunction with concrete embodiment.
Embodiment one:
In the present embodiment, the weight percent of each raw material is: the high hydroxyl value high solids content epoxy resin 6% that the low hydroxyl value low-solid content epoxy resin 25% that hydroxyl value is 25, solid content is 80%, hydroxyl value are 50, solid content is 95%, titanium dioxide 24%, zinc phosphate 4%, zinc sulfide white 5%, fineness are 800 object talcum powder 3%, fineness is 1000 object barium sulfate 13%, carbon black 0.2%, phthalocyanine blue 0.01%, medium chrome yellow medium yellow 1%, permanent yellow 0.09%, propyl carbinol 8%, 5065 dispersion agents 2.4% that 4071 dispersion agents 2% that dimethylbenzene 3.3%, toluene 3%, Afcona company buy, EFKA company buy.
One, after getting the raw materials ready, propyl carbinol, diformazan Benzene and Toluene are modulated into mixed solvent, stand-by; Add low hydroxyl value low-solid content epoxy resin, high hydroxyl value high solids content epoxy resin, titanium dioxide, zinc sulfide white, zinc phosphate, talcum powder, barium sulfate, carbon black, phthalocyanine blue, medium chrome yellow medium yellow, permanent yellow in a kettle. successively, add 2/3 amount mixed solvent again, stir;
Two, by the slip that stirs with the stir speed (S.S.) high speed dispersion of 1500 revs/min, disperse to put into sand mill grinding after 30 minutes, being milled to fineness is 30 μm;
Three, after adding 4071 dispersion agents and 5065 dispersion agents, being uniformly dispersed, is discharging after 120s with remaining 1/3 amount mixed solvent adjustment system viscosity.
Embodiment two:
In the present embodiment, the weight percent of each raw material is: hydroxyl value is 15, solid content is the low hydroxyl value low-solid content epoxy resin 32% of 70%, hydroxyl value is 50, solid content is the high hydroxyl value high solids content epoxy resin 1.5% of 95%, titanium dioxide 18%, zinc phosphate 7%, zinc sulfide white 14%, fineness is 800 object talcum powder 8%, fineness is 1000 object barium sulfate 6%, carbon black 0.6%, phthalocyanine blue 0.04%, medium chrome yellow medium yellow 1.5%, permanent yellow 0.96%, propyl carbinol 4%, dimethylbenzene 3%, toluene 1%, 4071 dispersion agents 1% that Afcona company buys, 5065 dispersion agents 1.4% that EFKA company buys.
Its preparation process is identical with embodiment one.
Embodiment three:
In the present embodiment, the weight percent of each raw material is: hydroxyl value is 20, solid content is the low hydroxyl value low-solid content epoxy resin 38% of 75%, hydroxyl value is 50, solid content is the high hydroxyl value high solids content epoxy resin 4% of 95%, titanium dioxide 20%, zinc phosphate 5%, zinc sulfide white 6.5%, fineness is 800 object talcum powder 4%, fineness is 1000 object barium sulfate 7%, carbon black 0.5%, phthalocyanine blue 0.02%, medium chrome yellow medium yellow 1%, permanent yellow 0.48%, propyl carbinol 5%, dimethylbenzene 3%, toluene 2%, 4071 dispersion agents 1% that Afcona company buys, 5065 dispersion agents 1.5% that EFKA company buys, aerosil anti-settling agent 1%.
Its preparation process is identical with embodiment one.
That more than records is only the preferred embodiments of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
During use, add epoxy hardener by priming paint mass ratio 5 ~ 4:1, spray again after adjustment viscosity.
According to relevant national standard, detect the fundamental property of Multifunctional undercoat of the present invention, test result is as follows:

Claims (8)

1. a Multifunctional undercoat, it is characterized in that, be made up of following raw material, the weight percent of raw material is: low hydroxyl value low-solid content epoxy resin 25 ~ 38%, high hydroxyl value high solids content epoxy resin 1.5 ~ 6%, titanium dioxide 18 ~ 24%, zinc phosphate 4 ~ 7%, zinc sulfide white 5 ~ 14%, talcum powder 3 ~ 8%, barium sulfate 6 ~ 13%, carbon black 0.2 ~ 0.6%, pigment 1 ~ 2.5%, solvent 8 ~ 14%, auxiliary agent 2.4 ~ 4.8%; The hydroxyl value of described low hydroxyl value low-solid content epoxy resin is 15 ~ 25, and solid content is 70 ~ 80%; The hydroxyl value of described high hydroxyl value high solids content epoxy resin is 40 ~ 50, and solid content is >=95%; Described auxiliary agent is one or more in dispersion agent, anti-settling agent.
2. a kind of Multifunctional undercoat according to claim 1, is characterized in that, described talcous fineness is 800 orders.
3. a kind of Multifunctional undercoat according to claim 1, is characterized in that, the fineness of described barium sulfate is 1000 orders.
4. a kind of Multifunctional undercoat according to claim 1, is characterized in that, described pigment comprise permanent yellow, phthalocyanine blue, permanent bordeaux, medium chrome yellow medium yellow one or more.
5. a kind of Multifunctional undercoat according to claim 1, is characterized in that, described solvent is the mixed solvent of one or more compositions in pimelinketone, propyl carbinol, dimethylbenzene, toluene.
6. a kind of Multifunctional undercoat according to claim 1, is characterized in that, described dispersion agent is 4071 dispersion agents and 5065 dispersion agents.
7. a kind of Multifunctional undercoat according to claim 1, is characterized in that, described anti-settling agent is aerosil anti-settling agent.
8. a preparation method for Multifunctional undercoat described in claim 1, is characterized in that, preparation process is following steps:
One, after getting the raw materials ready, add low hydroxyl value low-solid content epoxy resin, high hydroxyl value high solids content epoxy resin, titanium dioxide, zinc sulfide white, zinc phosphate, talcum powder, barium sulfate, carbon black and pigment in a kettle. successively, then stir after adding 2/3 amount solvent;
Two, by the slip that stirs with the stir speed (S.S.) high speed dispersion of 1500 revs/min, disperse after 30 minutes, to put into sand mill grinding, be milled to fineness≤30 μm;
Three, add auxiliary agent to be uniformly dispersed, with discharging after remaining 1/3 amount solvent adjustment system viscosity≤120s.
CN201310286309.7A 2013-07-09 2013-07-09 A kind of Multifunctional undercoat and preparation method thereof Active CN103305096B (en)

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CN103740193A (en) * 2013-12-18 2014-04-23 江苏富邦纺织有限公司 Vinylidene chloride coating
CN103820002B (en) * 2014-01-20 2016-04-20 苏州苏万万向节有限公司 A kind of universal joint corrosion resistant coating
CN105602410B (en) * 2016-03-28 2018-05-11 东莞市榴花艺术有限公司 A kind of antiquing paint and its manufacture craft
CN106752731A (en) * 2017-02-24 2017-05-31 东莞市榴花艺术有限公司 A kind of imitative wood paint
CN109354904A (en) * 2018-09-04 2019-02-19 奥尔(肇庆)金属彩板实业有限公司 A kind of steel calcium plate base paint special and preparation method

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CN102181218A (en) * 2011-03-18 2011-09-14 西北矿冶研究院 Novel polymer anticorrosion painting material

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CN101208397A (en) * 2005-06-24 2008-06-25 三菱化学株式会社 Coating composition and its manufacturing method, and resin molding and its manufacturing method
CN102181218A (en) * 2011-03-18 2011-09-14 西北矿冶研究院 Novel polymer anticorrosion painting material

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