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Super wear-resistant electrophoretic paint colored paint resin and preparation method thereof

An electrophoretic paint, super wear-resistant technology, applied in electrophoretic coatings, coatings, anti-corrosion coatings, etc., can solve the problem of inability to achieve high friction resistance, particle aggregation and poor inorganic-organic interface energy, and can not solve the problem of electrophoretic paint coatings. Adhesion, strength and hardness are not high, so as to increase dispersion tension, improve hydrophobicity, and improve impact resistance.

Pending Publication Date: 2021-11-26
湖北天鹅科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The Chinese invention patent with the authorized announcement number CN103951773B discloses a long side chain fluorine-containing acrylic epoxy resin and a coating prepared as a raw material, but it is not possible to only use organic fluorine for graft modification alone in this patent. Reach the effect of higher friction resistance, also can't solve the technical problem of the adhesion and strength hardness of the electrophoretic paint coating in the prior art is not high
Meanwhile, in recent years, inorganic particles have attracted more and more attention due to their excellent performance and wide application, but there are still some problems in the application of inorganic particles, for example, particle aggregation often occurs due to their original polar surface characteristics and the phenomenon of poor inorganic-organic interfacial energy

Method used

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  • Super wear-resistant electrophoretic paint colored paint resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of super wear-resistant electrophoretic paint paint resin:

[0032] S1: Add 8% amino-terminated liquid nitrile rubber, 3% methyl isobutyl ketone and 5% tert-butyl peroxybenzoate into the reaction kettle, rapidly heat up to 120-130°C, and keep warm at 130°C Reaction 2h;

[0033]S2: After the reaction in step S1 is completed, and the temperature of the reaction is lowered to 90°C, 8% polypropylene glycol diglycidyl ether and 5% methyl isobutyl ketone are added to the reaction kettle and kept at 90-95°C for 2 hours;

[0034] S3: Cool down to 70°C, add 0.4% polyether siloxane, 2% ethylene glycol hexyl ether, 5% HDI curing agent, 7% lactic acid, 2-10% water into the reaction kettle, and keep warm for 1 hour;

[0035] S4: Cool down to 50°C, add 0.1-3% alkylphenol polyoxyethylene ether, 0.1-3% wetting agent and 10-40% water, and stir for 30 minutes;

[0036] S5: Add rubber carbon black, kaolin, titanium dioxide, and precipitated barium sulfate into the r...

Embodiment 2

[0038] A preparation method of super wear-resistant electrophoretic paint paint resin:

[0039] S1: Add 5% amino-terminated liquid nitrile rubber, 5% methyl ethyl ketone and 6% benzoyl peroxide into the reaction kettle, rapidly raise the temperature to 100-110°C, and keep the temperature at 110°C for 2 hours;

[0040] S2: After the reaction in step S1 is completed, after the temperature of the reaction is lowered to 90°C, 5% polyether polyol glycidyl ether and 5% methyl isobutyl ketone are added to the reaction kettle and kept at 90-95°C for 2 hours;

[0041] S3: Cool down to 70°C, add 0.1% polyether siloxane, 2% propylene glycol phenyl ether, 5% IPDI curing agent, 6% lactic acid, 2-10% water into the reaction kettle, and keep warm for 1 hour;

[0042] S4: Cool down to 50°C, add 2% fatty alcohol polyoxyethylene ether, 0.1-3% wetting agent and 10-40% water, and stir for 30 minutes;

[0043] S5: Add rubber carbon black, kaolin, titanium dioxide, and precipitated barium sulfate ...

Embodiment 3

[0045] A preparation method of super wear-resistant electrophoretic paint paint resin:

[0046] S1: Add 2% amino-terminated liquid nitrile rubber, 3% methyl ethyl ketone and 2-8% azobisisobutyronitrile into the reaction kettle, rapidly raise the temperature to 90-100°C, and keep the temperature at 100°C for 2 hours;

[0047] S2: After the reaction in step S1 is completed, after the temperature of the reaction is lowered to 90°C, 3% polyether polyol glycidyl ether and 3% methyl isobutyl ketone are added to the reaction kettle and kept at 90-95°C for 2 hours;

[0048] S3: Cool down to 70°C, add 0.2% polyether siloxane, 2% ethylene glycol hexyl ether, IPDI curing agent 2-7%, HDI curing agent, 3-8% lactic acid, 2-10% water to the reaction In the kettle, keep warm for 1h;

[0049] S4: Cool down to 50°C, add 1% dinonylphenol polyoxyethylene ether, 0.1-3% wetting agent and 10-40% water, and stir for 30 minutes;

[0050] S5: Add rubber carbon black, kaolin, titanium dioxide, and pre...

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Abstract

The invention belongs to the technical field of electrophoretic paint preparation, and relates to a super wear-resistant electrophoretic paint colored paint resin, which mainly comprises the following components by weight: 1-10% of amino-terminated liquid nitrile rubber; 2-8% of polyether polyol glycidyl ether; 1%-5% of an initiator; 10-24% of a solvent; 1-5% of a coalescing agent; 0.05 to 1% of polyether siloxane; 4-10% of a curing agent; 3-8% of lactic acid; 0.1-3% of an emulsifier; 3-15% of pigment and filler; and 10-50% of water. the preparation method comprises the following steps: carrying out oxidative polymerization reaction on amino-terminated liquid nitrile rubber and an initiator under the interaction of the amino-terminated liquid nitrile rubber and the initiator, reacting an amino-terminated group in the amino-terminated liquid nitrile rubber with an epoxy group in polyether polyol glycidyl ether to form modified rubber resin, and preparing the modified rubber resin into electrophoretic paint resin. The flexibility and the wear resistance of the electrophoretic paint resin can be greatly improved, and the impact resistance of the electrophoretic paint is improved.

Description

technical field [0001] The invention belongs to the technical field of electrophoretic paint preparation, and in particular relates to a color paint resin for super wear-resistant electrophoretic paint and a preparation method thereof. Background technique [0002] As a new type of low-pollution, energy-saving, resource-saving, protective and anti-corrosion coating, electrophoretic coating has the characteristics of smooth coating film, good water resistance and chemical resistance, and it is easy to realize the mechanization and automation of the coating industry , suitable for complex shapes, edges, corners, and holes, and is widely used in the coating of hardware such as automobiles, automatic vehicles, electromechanical appliances, and home appliances. [0003] The Chinese invention patent with the authorized announcement number CN103951773B discloses a long side chain fluorine-containing acrylic epoxy resin and a coating prepared as a raw material, but it is not possibl...

Claims

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Application Information

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IPC IPC(8): C08G81/02C09D5/08C09D5/44
CPCC08G81/025C09D5/4419C09D5/448C09D5/08C08K9/04C08K7/26C08K2201/011
Inventor 万涛章树芳杜建伟刘元雷坤陈文俊
Owner 湖北天鹅科技有限公司
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