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Novel acrylic acid electrophoretic paint and preparation method thereof

An electrophoretic coating and acrylic technology, applied in electrophoretic coatings, anti-corrosion coatings, coatings, etc., can solve problems such as poor weather resistance, and achieve the effect of maintaining aesthetics and enhancing salt spray resistance test time.

Inactive Publication Date: 2015-09-30
深圳市粤辉煌自动化设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of poor weather resistance of existing acrylic electrophoretic coatings, the present invention provides a novel acrylic electrophoretic coating and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] a. Preparation of component A: Weigh each raw material according to the following proportions by mass:

[0045] 40 parts of butyl acrylate;

[0046] 30 parts of ethyl acrylate;

[0047] 20 parts of dimethylaminoethyl acrylate;

[0048] 20 parts of hydroxyethyl acrylate;

[0049] 15 parts of cyclohexyl acrylate;

[0050] 8 parts of lauryl acrylate;

[0051] 10 parts of isopropanol;

[0052] 20 parts of ethylene glycol ether;

[0053] 20 parts of ethylene glycol hexyl ether;

[0054] 1.2 parts of azobisisobutyronitrile;

[0055] Mix the above raw materials evenly, use the upper and lower kettles, the upper kettle is at the high position, pump all the mixed raw materials to the high position, and start heating and stirring at the low position; start dropping at 80°C, dropwise adding for 4 hours, keep the temperature at 80°C for reaction, Keep warm for 4 hours;

[0056] b. Preparation of component B: first seal and vacuumize the reactor, add 100 parts of HDI trimer...

Embodiment 2

[0058] a. Preparation of component A: Weigh each raw material according to the following proportions by mass:

[0059] 50 parts of butyl acrylate;

[0060] 40 parts of ethyl acrylate;

[0061] 30 parts of dimethylaminoethyl acrylate;

[0062] 20 parts of lauryl acrylate;

[0063] 20 parts of isopropanol;

[0064] 60 parts of ethylene glycol ether;

[0065] 4 parts of azobisisobutyronitrile;

[0066] Mix the above raw materials evenly, use the upper and lower kettles, the upper kettle is at the high position, pump all the mixed raw materials to the high position, and start heating and stirring at the low position; start dripping at 80°C, add dropwise for 4 hours, and keep warm at 90°C for reaction. Keep warm for 6 hours;

[0067] b. Preparation of component B: firstly seal and vacuumize the reactor, add 120 parts of HDI trimer, 70 parts of acetic acid, and 1 part of catalyst bismuth metal complex according to the ratio, and then fill it with nitrogen for nitrogen protecti...

Embodiment 3

[0070] a. Preparation of component A: Weigh each raw material according to the following proportions by mass:

[0071] 60 parts of butyl acrylate;

[0072] 30 parts of ethyl acrylate;

[0073] 30 parts of hydroxyethyl acrylate;

[0074] 30 parts of isopropanol;

[0075] 40 parts of ethylene glycol hexyl ether;

[0076] 1.2 parts of azobisisobutyronitrile;

[0077] Mix the above raw materials evenly, use the upper and lower kettles, the upper kettle is at the high position, pump all the mixed raw materials to the high position, and start heating and stirring at the low position; start dropping at 85°C, drop it for 3 hours and complete the drop, keep warm at 85°C for reaction, Keep warm for 5 hours;

[0078] b. Preparation of component B: first seal the reactor and vacuumize it, then add 150 parts of HDI trimer, 20 parts of acetic acid, 45 parts of ethyl acetate, and 2 parts of catalyst bismuth metal complex according to the proportion, and then fill it with nitrogen For nit...

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Abstract

The invention relates to novel acrylic acid electrophoretic paint and a preparation method thereof, wherein the paint comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is (80-120):(30-50):(5-15); the component A comprises 100-150 parts by mass of acrylic monomer, 30-60 parts by mass of a solvent S1 and 1-10 parts by mass of an initiator; the component B comprises 100-150 parts by mass of an HDI trimer, 53-80 parts by mass of 3,5-dimethylpyrazole, 50-75 parts by mass of a solvent S2 and 0.5-2 parts by mass of a catalyst; the component C, the solvent S1 and the solvent S2 are selected from one or more of acetic acid, isopropyl alcohol, glycol ether and ethylene glycol monohexyl ether. Compared with the conventional acrylic acid electrophoretic paint, the novel acrylic acid electrophoretic paint provided by the invention is greatly improved in salt spray resistance test time while maintaining the aesthetic property.

Description

technical field [0001] The invention relates to the field of chemical products, and more specifically relates to a novel acrylic electrophoretic paint and a preparation method thereof. Background technique [0002] Generally, the resin used for electrophoretic coatings often chooses epoxy resin with good corrosion resistance. It has many hydroxyl groups and ether bonds, so it has strong adhesion, tough paint film, and strong corrosion resistance. It is suitable for primers, but the disadvantage is that it is brittle and hard. , As a result, this product generally has defects such as poor flexibility and low gloss. [0003] At present, the widely used acrylic electrophoretic coatings on the market maintain the aesthetics and transparency, and the neutral salt spray test time is quite different from that of epoxy electrophoretic coatings, which can only reach the general epoxy electrophoretic coatings on the market. The 20% salt spray test time of the paint (generally about 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D5/44C09D5/08C09D7/12C08F220/18C08F220/34C08F220/28
Inventor 潘力周桃明路永荣
Owner 深圳市粤辉煌自动化设备有限公司
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