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CN103525267A - Automobile water-based primer surfacer with excellent chip resistance and preparation method thereof - Google Patents

Automobile water-based primer surfacer with excellent chip resistance and preparation method thereof Download PDF

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Publication number
CN103525267A
CN103525267A CN201210228740.1A CN201210228740A CN103525267A CN 103525267 A CN103525267 A CN 103525267A CN 201210228740 A CN201210228740 A CN 201210228740A CN 103525267 A CN103525267 A CN 103525267A
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parts
aqueous
water
primer surfacer
automobile
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CN201210228740.1A
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Inventor
张振久
马海松
高成勇
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Changchun Sanhua Industry Co Ltd
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Changchun Sanhua Industry Co Ltd
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Priority to CN201210228740.1A priority Critical patent/CN103525267A/en
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Abstract

The invention provides an automobile water-based primer surfacer with excellent chip resistance and a preparation method thereof. The automobile water-based primer surfacer is characterized by consisting of the following components in parts by weight: 18-26 parts of water-based epoxy resin, 36-45 parts of water-based polyester resin, 0.1-0.4 part of gas-phase silicon dioxide anti-settling agent, 7-12 parts of methylated melamine resin, 6-10 parts of talc powder, 10-15 parts of calcium carbonate, 4-7 parts of barium sulfate, 8-13 parts of butyl cellosolve, 0.2-0.5 part of water-based dispersing agent, 0.1-0.4 part of water-based leveling agent and 0.2-0.6 part of water-based wetting agent. The water-based automobile primer surfacer provided by the invention has excellent chip resistance and impact strength, wherein the chip resistance can reach the level 3, and the impact strength is 294N.cm; the performances such as gloss, adhesion, heat and humidity resistance, salt mist resistance and the like reach the standard for a solvent type automobile primer surfacer.

Description

Excellent anti-stone hits automobile aqueous primer surfacer and the method for making thereof of performance
Technical field
The invention belongs to car paint production field, be specifically related to automobile aqueous primer surfacer and method for making thereof that excellent anti-stone hits performance.
Technical background
Automotive Primer Surfacer is also referred to as surfacer, refer between priming paint and finish paint, its major function is to improve the planeness of substrate surface and prime coat, for top coat layer provides good substrate, be conducive to like this ornamental of the clarity of topcoat and fullness ratio and whole coating, so middle japanning has following characteristic: (1) should be good with bottom surface lacquering matching capacity, the bonding force that is coated with interlayer is strong, hardness is supporting moderate, can not stung by the solvent in finish paint; (2) there is the property of filling and leading up, can eliminate the tiny flaws such as stroke line on japanning substrate surface; (3) wear resisting property is good, after wet polishing, can obtain smooth smooth surface, energy hyperthermia drying, and dryness is good, not scab paper during polishing.(4) excellent anti-stone hits performance; while being subject to extraneous various factors to the formed collision of car surface in automobile fast running process; can protect primer coating and base material to exempt from damage; thereby improve the weather resistance of primer coating film; and, can also improve the planeness of car body surface and undercoat, for finish paint provides a good substrate; to improve gloss, clarity and the fullness ratio of topcoat, improve ornamental, anti-hitting property of stone and the weathering resistance of whole coating.
At present, Automotive Primer Surfacer exist paint film more firmly, more crisp, exist the problems such as anti-stone hits poor performance, and resistance to impact shock is inadequate, and weathering resistance is poor.And, in the domestic solvent-borne type Automotive Primer Surfacer generally using, contain a large amount of organic solvents such as benzene,toluene,xylene, in painting dressing automobiles process, discharge a large amount of organic solvents, the volatile organic solvent (VOC) discharging is up to 120g/m2, can cause huge harm to human body health, to environment, bring huge pollution simultaneously.Patent CN101624496A discloses " a kind of aqueous primer surfacer and preparation method thereof ", mentioned a kind of aqueous primer surfacer for painting dressing automobiles and preparation method thereof, it is comprised of 40%-60% aqueous dispersion type resin, 25% color stuffing, 5% auxiliary agent and 10-30% water, the main component of described aqueous dispersion type resin comprises hydrophilic polyester resin, water-compatible amino resin, color stuffing can be titanium dioxide, auxiliary agent can be acrylate, and water can be distilled water; This product environmental protection (its VOC quantity discharged is 30g/m2), easy grinding, easily disperse, height adheres to, high gloss, anticorrosion, easily polishing by force.Patent CN101942064B discloses " in modified poly ester and water-based, being coated with coating composition ", its technological core has been to provide a kind of modified poly ester, described modified poly ester is prepared in accordance with the following methods: a) polyvalent alcohol, alkene diacid and polyprotonic acid reaction under the effect of oxidation inhibitor and catalyzer, obtains polyester; B) in described polyester, add water-based solubility promoter, obtain polyester mixture; C) in described polyester mixture, add the first monomer, the second monomer, the 3rd monomer and radical initiator, continue reaction and obtain the first intermediate product, described the first monomer is one or both in vinylformic acid and methacrylic acid, described the second monomer is one or more in acrylate and vinylbenzene, and described the 3rd monomer is crylic acid hydroxy ester; D) in described the first intermediate product, add neutralizing agent, stir neutralization, obtain modified poly ester.
Summary of the invention
The object of the invention is to provide a kind of automobile aqueous primer surfacer, thoroughly eliminated organic solvent, is a kind of green environment protection water car paint; It not only has excellent anti-stone and hits performance, and can be effectively for finish paint provides a good substrate, to improve gloss, clarity and the fullness ratio of topcoat, reach the ornamental and weathering resistance that improves whole coating, make finish paint there is better decorative effect.
The present invention realizes so to achieve the above object: the automobile aqueous primer surfacer that the anti-stone of excellence of the present invention hits performance by weight, is painted in this composed of the following components: aqueous epoxy resins 18-26 part, aqueous polyester resin 36-45 part, aerosil anti-settling agent 0.1-0.4 part, methyl-etherified melamine resin 7-12 part, talcum powder 6-10 part, calcium carbonate 10-15 part, barium sulfate 4-7 part, butyl glycol ether 8-13 part, aqueous dispersant 0.2-0.5 part, water-based flow agent 0.1-0.4 part, aqueous wetting agent 0.2-0.6 part.
Excellent anti-stone hits the automobile aqueous primer surfacer preparation of performance: by above-mentioned weight part, aqueous epoxy resins, aqueous dispersant, aqueous wetting agent, talcum powder, calcium carbonate, barium sulfate, waterborne polyester and water-based flow agent are joined in homogenizer, rotating speed with 1200-1600rpm stirred after 1-3 hour, obtained mixture; In mixture, add aerosil anti-settling agent, methyl-etherified melamine resin and butyl glycol ether, the rotating speed stirring 4-6 hour with 1800-2200rpm, then, with after 200 object filter-cloth filterings, obtains the automobile aqueous primer surfacer that excellent anti-stone hits performance.
In automobile of the present invention, water-based japanning has excellent anti-stone and hits performance and good shock strength, and the performances such as glossiness, sticking power, wet-heat resisting and salt spray resistance have reached the standard of solvent-borne type Automotive Primer Surfacer.
Embodiment
0.2 part of 22 parts of aqueous epoxy resins, 0.3 part of aqueous dispersant, 0.4 part of aqueous wetting agent, 8 parts of talcum powder, 12 parts, calcium carbonate, 6 parts, barium sulfate, 40 parts of aqueous polyester resins and water-based flow agent is joined in homogenizer, rotating speed with 1400rpm stirred after 2 hours, obtained mixture; Toward adding 10 parts of 0.2 part of aerosil anti-settling agent, 9 parts of methyl-etherified melamine resins and butyl glycol ethers in mixture, rotating speed with 2000rpm stirs 5 hours, then, with after 200 object filter-cloth filterings, obtain the automobile aqueous primer surfacer that excellent anti-stone hits performance.
Japanning in the aqueous automobile obtaining is sprayed on the steel plate that applies electrophoretic primer, dries 6min, 80 ℃ of dry 10min, then, 100 ℃ are toasted 20min, obtain being coated with the model of aqueous primer surfacer, and model is tested.In aqueous automobile, paint coating property and paint film property test result as table 1.
In table 1, aqueous automobile, paint coating property and paint film property test result
Figure BSA00000743485200021
Figure BSA00000743485200031
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (3)

1. the invention provides automobile aqueous primer surfacer and method for making thereof that excellent anti-stone hits performance, it is characterized in that, by weight, this coating is comprised of aqueous epoxy resins 18-26 part, aqueous polyester resin 36-45 part, aerosil anti-settling agent 0.1-0.4 part, methyl-etherified melamine resin 7-12 part, talcum powder 6-10 part, calcium carbonate 10-15 part, barium sulfate 4-7 part, butyl glycol ether 8-13 part, aqueous dispersant 0.2-0.5 part, water-based flow agent 0.1-0.4 part, aqueous wetting agent 0.2-0.6 part.
2. excellent anti-stone hits automobile aqueous primer surfacer and the method for making thereof of performance, it is characterized in that: according to the weight part of material claimed in claim 1, aqueous epoxy resins, aqueous dispersant, aqueous wetting agent, talcum powder, calcium carbonate, barium sulfate, waterborne polyester and water-based flow agent are joined in homogenizer, rotating speed with 1200-1600rpm stirred after 1-3 hour, obtained mixture; In mixture, add aerosil anti-settling agent, methyl-etherified melamine resin and butyl glycol ether, the rotating speed stirring 4-6 hour with 1800-2200rpm, then, with after 200 object filter-cloth filterings, obtains the automobile aqueous primer surfacer that excellent anti-stone hits performance.
3. excellent anti-stone hits automobile aqueous primer surfacer and the method for making thereof of performance, it is characterized in that: 0.2 part of 22 parts of aqueous epoxy resins, 0.3 part of aqueous dispersant, 0.4 part of aqueous wetting agent, 8 parts of talcum powder, 12 parts, calcium carbonate, 6 parts, barium sulfate, 40 parts of aqueous polyester resins and water-based flow agent is joined in homogenizer, rotating speed with 1400rpm stirred after 2 hours, obtained mixture; Toward adding 10 parts of 0.2 part of aerosil anti-settling agent, 9 parts of methyl-etherified melamine resins and butyl glycol ethers in mixture, rotating speed with 2000rpm stirs 5 hours, then, with after 200 object filter-cloth filterings, obtain the automobile aqueous primer surfacer that excellent anti-stone hits performance.
CN201210228740.1A 2012-07-04 2012-07-04 Automobile water-based primer surfacer with excellent chip resistance and preparation method thereof Pending CN103525267A (en)

Priority Applications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105754463A (en) * 2016-02-26 2016-07-13 上海大众联合汽车改装有限公司 Automotive waterborne floating-coat coating and preparation method thereof
CN107057537A (en) * 2017-05-22 2017-08-18 上海天地涂料有限公司 Coating and preparation method thereof is applied in a kind of automobile water-based property
CN107129745A (en) * 2017-05-15 2017-09-05 柳州申通汽车科技有限公司 A kind of water nano car paint
CN113861811A (en) * 2021-10-26 2021-12-31 江苏海晟涂料有限公司 High-adhesion middle coating for metal surface
CN116179058A (en) * 2023-03-27 2023-05-30 双塔涂料科技有限公司 Water-based 2K middle paint for passenger car

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CN102504680A (en) * 2011-10-27 2012-06-20 重庆三峡油漆股份有限公司 Automobile bi-component intermediate paint resistant to rock impact

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105754463A (en) * 2016-02-26 2016-07-13 上海大众联合汽车改装有限公司 Automotive waterborne floating-coat coating and preparation method thereof
CN105754463B (en) * 2016-02-26 2018-05-22 上海大众联合汽车改装有限公司 A kind of aqueous middle painting coating of automobile and preparation method thereof
CN107129745A (en) * 2017-05-15 2017-09-05 柳州申通汽车科技有限公司 A kind of water nano car paint
CN107057537A (en) * 2017-05-22 2017-08-18 上海天地涂料有限公司 Coating and preparation method thereof is applied in a kind of automobile water-based property
CN113861811A (en) * 2021-10-26 2021-12-31 江苏海晟涂料有限公司 High-adhesion middle coating for metal surface
CN116179058A (en) * 2023-03-27 2023-05-30 双塔涂料科技有限公司 Water-based 2K middle paint for passenger car

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Application publication date: 20140122