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Double-fast-curing repair finish paint for car body and preparation method thereof

A fast curing and topcoat technology, applied in the field of paint, can solve the problems of high VOC content, slow curing speed, volatile paint, etc., and achieve the effect of low VOC content, fast curing speed and low environmental pollution

Active Publication Date: 2012-11-14
ZHANGZHOU XIN ZHAN WANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two kinds of curing are seriously affected by temperature and human operation: ① Traditional paints need to use curing agents suitable for different temperatures to cooperate with the operation during construction, and the operation is complicated; ② During the production and transportation of curing agents, human influence is more serious , labor-intensive, and short storage time; ③Traditional paints are volatile and slow in curing, which is not conducive to environmental protection; ④When spraying plastic workpieces, they need to be dried at a certain temperature, which is easy to deform plastic parts; ⑤Traditional paints have high VOC content , not conducive to environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of a double fast-curing body repair finish paint, the method comprises the following process steps:

[0029] (1) According to the formula requirements, 44 kg of polyurethane acrylate, 30 kg of monofunctional acrylate monomer, 5 kg of organic peroxide initiator, 0.2 kg of modified silicone, 0.8 kg of butyl ester, and acrylic modified epoxy resin 20 kg into the dispersion tank;

[0030] (2) Keep stirring evenly for 15 minutes;

[0031] (3) measure solid content, and adjust coating to theoretical value 85wt% with remaining butyl ester 0.2 kilogram;

[0032] (4) Weigh the package.

Embodiment 2

[0034] A method for preparing a dual fast-curing body repair finish paint, the method comprises the following process steps:

[0035] (1) According to the formula requirements, 60 kg of polyurethane acrylate, 18 kg of monofunctional acrylate monomer, 3 kg of organic peroxide initiator, 2 kg of modified silicone, 2.5 kg of butyl ester, and acrylic modified epoxy resin 12 kilograms are put into the dispersion tank;

[0036] (2) Keep stirring evenly for 30 minutes;

[0037] (3) measure solid content, and adjust coating to theoretical value 90wt% with 2.5 kilograms of remaining butyl esters;

[0038] (4) Weigh the package.

Embodiment 3

[0040] A preparation method of a double fast-curing body repair finish paint, the method comprises the following process steps:

[0041] (1) According to the formula requirements, 55 kg of polyurethane acrylate, 25 kg of monofunctional acrylate monomer, 3.5 kg of organic peroxide initiator, 0.5 kg of modified silicone, 1.8 kg of butyl ester, and acrylic modified epoxy resin 13 kilograms are put into the dispersion tank;

[0042] (2) Keep stirring evenly for 20 minutes;

[0043] (3) measure solid content, and adjust coating to theoretical value 93wt% with remaining butyl ester 1.2 kilograms;

[0044] (4) Weigh the package.

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Abstract

The invention relates to a double-fast-curing repair finish paint for a car body and a preparation method of the finish paint. The finish paint comprises the following components by weight: 40-60 parts of low polymer A, 20-30 parts of low polymer B, 3-5 parts of initiator, 0.2-2 parts of assistant, 1-10 parts of solvent and 10-20 parts of additive resin. The preparation method of the finish paint comprises the following steps: 1, according to the requirements of a formula, adding the low polymer A, the low polymer B, the initiator, the assistant, 50-80% by weight of the solvent and all the additive resin into a dispersion cylinder; 2, stirring for 15-30min at constant speed to obtain a coating; and 3, measuring the solid content of the coating and adjusting the solid content of the coating by using the rest solvent till the solid content reaches a theoretical value to finally the finish paint. Compared with the prior art, the double-fast-curing repair finish paint has the advantages of high curing speed, environment friendliness and energy saving.

Description

technical field [0001] The invention relates to a paint, in particular to a double fast-curing car body repair finish paint and a preparation method thereof. Background technique [0002] There are two kinds of curing conditions for traditional solvent-based body repair paints, one is physical drying, the internal molecules of the paint directly react with the oxygen in the air, so as to achieve the purpose of drying. One is chemical curing, which is through the combination of A and B components, allowing their molecules to react, so as to achieve the purpose of curing. This shortens the drying time of the paint and also makes the paint stronger. The above two kinds of curing are seriously affected by temperature and human operation: ① Traditional paints need to use curing agents suitable for different temperatures to cooperate with the operation during construction, and the operation is complicated; ② During the production and transportation of curing agents, human influen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D163/10C09D167/07C09D161/32C09D7/12
Inventor 谢永立
Owner ZHANGZHOU XIN ZHAN WANG CHEM IND
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