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High-performance water-based single-component automobile finish paint applicable to a compression process and preparation method thereof

A technology of automobile topcoat and process sheet, which is applied in the field of coatings, can solve problems such as technical difficulty, and achieve the effect of improving the appearance of the paint film, strong supporting effect, and excellent construction performance

Active Publication Date: 2020-04-10
上海金力泰化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, B2B1 puts forward higher requirements on the coating formula, and the technical difficulty is more difficult

Method used

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  • High-performance water-based single-component automobile finish paint applicable to a compression process and preparation method thereof
  • High-performance water-based single-component automobile finish paint applicable to a compression process and preparation method thereof
  • High-performance water-based single-component automobile finish paint applicable to a compression process and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0083] It is intended to utilize the non-isocyanate polyurethane modified polyester prepared according to the preparation method of the present invention to introduce urethane bonds and carboxyl groups into the side chains of the polyester, and at the same time collocate self-made core-shell structure acrylate resin microgel (micro gel ) emulsion, and then matched with a large molecular weight polycarbon modified polyurethane resin, with a certain ratio of methyl ether amino resin and HMMM amino resin as a cross-linking agent for quaternary physical blending as the main resin part, and then with general-purpose oily aluminum powder after For special passivation treatment, prepare metal paint according to P / B=5-20%, and prepare plain paint with general-purpose resin-free color paste according to P / B=80-150%.

[0084] Polyurethane resin is prepared by the reaction of polyisocyanate and polyester polyol. It has excellent tensile strength, elastic modulus, good low-temperature mech...

Embodiment 1

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Embodiment 2

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Abstract

The invention discloses a high-performance water-based single-component automobile finish paint applicable to a compression process. The automobile finish paint consists of two parts, namely a finishpaint B1 and a finish paint B2. The invention also discloses a preparation method of the automobile finish paint. According to the invention, the automobile finish paint can meet the requirements of along mainstream B1B2 spraying process (a compression process) used for main engines of various automobiles at present and has excellent workability; due to the fact that a core-shell structure micro-gel emulsion is used, the automobile finish paint has extremely high drainage capacity and is free of paint film defects such as pinholes and miliaria under wet spraying process conditions; and the finish paint B1 has a high-humidity film Tg which has a strong supporting effect on the later coating B2, and therefore, the phenomenon of paint film layer mixing can be effectively reduced, and the appearance of the paint film is improved.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a high-performance water-based compression process single-component automotive topcoat coating and a preparation method thereof. Background technique [0002] Since entering the 21st century, my country's automobile industry has developed rapidly. According to the statistics of China Association of Automobile Manufacturers, as early as 2105, my country's automobile production and sales exceeded 24.5 million, which shows that my country has entered the ranks of automobile powers. The rapid development of the automobile industry has also led to the development of the coatings industry. Following stricter environmental protection requirements, in order to control VOC emissions, the original solvent automotive coatings will be quickly converted to water-based coatings. Currently on the market, the main processes of the main water-based automotive coatings are as follows: figure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/00C09D151/08C09D175/04C09D161/32C09D161/20C09D7/61
CPCC09D151/003C09D7/61C09D175/04C08L2205/035C08K2003/2241C08L51/08C08L75/04C08L61/32C08L61/20C08K3/22C08L51/003
Inventor 唐先斌刘鹏马宝海古俊甫张立德
Owner 上海金力泰化工股份有限公司
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