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Preparation method and application of high-performance high-solid-content low-viscosity acrylic resin

An acrylic resin, high solid content technology, applied in the direction of coating, can solve the problems of unsatisfactory appearance decoration, poor paint film fullness, unfavorable environmental protection and other problems, achieve excellent color retention, low viscosity, less solvent usage Effect

Inactive Publication Date: 2020-03-31
QINGYUAN HAOYU CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional acrylic coatings have high viscosity, low solid content, poor fullness of the formed paint film, and unsatisfactory appearance decoration. A large amount of volatile solvents are required in the preparation and coating process, which is not conducive to environmental protection.

Method used

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  • Preparation method and application of high-performance high-solid-content low-viscosity acrylic resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: The preparation method of the high-performance, high-solid content and low-viscosity acrylic resin provided by this embodiment, in parts by weight, comprises the following steps:

[0036] (1) Preparation of drip feed: add 10-20 parts of cycloalkyl methacrylate monomer, 15-30 parts of non-functional acrylate, hydroxyl-containing (meth)acrylate or its derivatives to the high slot 8-10 parts, 0.5-2 parts of methacrylic acid, 8-15 parts of vinyl monomer, 0.3-0.6 parts of initiator, stir and mix well;

[0037] Among them, the cycloalkyl methacrylate monomer is one of cyclohexyl methacrylate, tert-butylcyclohexyl methacrylate, trimethylcyclohexyl methacrylate, isobornyl methacrylate or a mixture thereof ;

[0038] The non-functional (meth)acrylate is one of methyl methacrylate, ethyl methacrylate, butyl acrylate or a mixture thereof; the vinyl monomer is styrene or acrylonitrile; the initiator is Azobisisobutyronitrile or dibenzoyl peroxide; hydroxyl-containin...

Embodiment 2

[0050] The preparation method of the high-performance, high-solid content and low-viscosity acrylic resin provided in the examples, and the environment-friendly automotive coating prepared by using the high-performance, high-solid content and low-viscosity acrylic resin, are basically the same as in Example 1, except that :

[0051] Add 15 parts by weight of cyclohexyl methacrylate or tert-butylcyclohexyl methacrylate, trimethylcyclohexyl methacrylate, one of isobornyl methacrylate, 20 parts by weight of methyl methacrylate , ethyl methacrylate, one of butyl acrylate, 9 parts by weight of hydroxyethyl methacrylate or hydroxyethyl acrylate, 1.5 parts by weight of methacrylic acid, 10 parts by weight of styrene or acrylonitrile, 0.4 parts by weight of even Azodiisobutyronitrile, after mixing uniformly, dripping material is obtained; in the reactor that stirring paddle, thermometer, condenser are housed, add 30 parts by weight of butyl acetate, the dipropylene glycol methyl ether...

Embodiment 3

[0053] The preparation method of the high-performance high-solid-content low-viscosity acrylic resin provided by this embodiment is basically the same as that of Example 1, except that:

[0054] Add 10 parts by weight of tert-butylcyclohexyl methacrylate, 5 parts by weight of methyl methacrylate, 10 parts by weight of butyl acrylate, 8 parts by weight of hydroxyethyl acrylate, 0.3 parts by weight of methacrylic acid, 12 The acrylonitrile of parts by weight, the dibenzoyl peroxide of 0.3 parts by weight, after mixing homogeneously, drip feed is made; In stirring paddle, thermometer, condenser reactor, add 5 parts by weight of n-butyl propionate, 10 parts by weight Propylene glycol methyl ether acetate in parts by weight is heated to 90°C to prepare a stirring material; the dripping material is added dropwise to the reaction kettle at a uniform speed within 1.5 hours, and after the heat preservation is continued for 3 hours, the temperature is lowered and the material is filtered...

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Abstract

The invention discloses a preparation method of high-performance high-solid-content low-viscosity acrylic resin. The method comprises the following steps: preparation of a dropwise-adding material: adding 10-20 parts of a cycloalkyl methacrylate monomer, 15-30 parts of non-functional acrylate, 8-10 parts of a hydroxyl-containing (methyl)acrylate or a derivative thereof, 0.5-2 parts of methacrylicacid, 8-15 parts of a vinyl monomer and 0.3-0.6 part of an initiator into a head tank, and carrying out uniform mixing under stirring; preparation of a stirring material: adding 5-35 parts of an estersolvent and 10-20 parts of propylene glycol ether and ether ester into a reaction kettle provided with stirring paddles, a thermometer and a condenser, and carrying out heating to 90-110 DEG C; and dropwise addition of the dropwise-adding material into the reaction kettle, heat preservation for 3-5 hours, cooling, filtering, and discharging to obtain the resin. The invention also discloses an environment-friendly automobile coating prepared from the resin. A preparation method for the automobile coating comprises the following steps: (1) preparing a component A, namely preparing color paste and the component A; (2) preparing a component B; and (3) uniformly mixing the two components according to a ratio of 2: 1 to obtain the environment-friendly automobile coating. The coating is high insolid content and good in comprehensive performance.

Description

technical field [0001] The invention relates to a resin for automobile coatings, in particular to a preparation method of a high-performance, high-solid-content, low-viscosity acrylic resin and its application in environment-friendly automobile coatings. Background technique [0002] At present, various types of coatings used in various types of automobiles have many varieties, large dosages, high coating performance requirements, and special coating processes. The technical level of a country's paint industry. Therefore, coating manufacturers in various countries attach great importance to the trend and development of automotive coatings to meet the needs of the development of the automotive industry. In countries with developed automobile industries, the amount of automotive coatings occupies an extremely important position in the output of coatings. In the current coatings industry market, automotive coatings in developed countries generally account for more than 20% of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/44C08F212/08C08F220/06C08F220/20C09D133/10C09D133/12C09D133/08
CPCC08F220/14C08F220/18C09D133/066C09D133/20
Inventor 郭逍遥赵果汤汉良李树伟陈之善罗晖李桂琴郭伟杰赖浩城刘玉萍温伟洪
Owner QINGYUAN HAOYU CHEM TECH
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