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Polyurethane curtain-coating transparent primer coating material

A polyurethane and flow coating technology, which is applied in the field of chemical coatings, can solve the problems of shrinkage cavity of paint film, restricting the development of flow coating, and jumping curtains, etc.

Inactive Publication Date: 2022-04-12
CHENGDU ZHANCHEN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, conventional flow coating materials will face the disadvantages of broken curtain, jumping curtain, slow defoaming speed, shrinkage cavity and dark bubbles in the paint film, which seriously restrict the development of flow coating

Method used

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  • Polyurethane curtain-coating transparent primer coating material
  • Polyurethane curtain-coating transparent primer coating material
  • Polyurethane curtain-coating transparent primer coating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A polyurethane coating transparent bottom coating material, which is prepared by a main agent, a curing agent, and a diluent in a weight ratio of 1:0.5:0.15;

[0037] The main ingredient is prepared according to the following preparation method: after mixing 70 parts of alkyd resin and 4 parts of propylene glycol methyl ether acetate, disperse at a speed of 600-800 rpm for 5-10 minutes until the mixture is uniform; then add anti-settling agent in sequence 0.5 parts, 18 parts of talcum powder, 2 parts of zinc stearate, disperse at 1200-1500 rpm for 10-15 minutes; then add 1 part of defoamer, 0.2 parts of leveling agent, 4.3 parts of butyl acetate , disperse for 5-10 minutes at a speed of 600-800 rpm until the mixture is uniform;

[0038] The diluent is prepared according to the following preparation method: after mixing 20 parts of xylene, 60 parts of butyl acetate and 20 parts of propylene glycol methyl ether acetate, disperse at a speed of 400-800 rpm for 5-10 minutes ...

Embodiment 2

[0042] A polyurethane flow coating transparent base coating material, which is prepared by a main agent, a curing agent, and a diluent in a weight ratio of 1:0.4:0.25;

[0043] The main ingredient is prepared according to the following preparation method: after mixing 75 parts of alkyd resin and 3 parts of propylene glycol methyl ether acetate, disperse at a speed of 600-800 rpm for 5-10 minutes until the mixture is uniform; then add anti-settling agent in sequence 1 part, 10 parts of talcum powder, 4 parts of zinc stearate, disperse for 10-15 minutes at a speed of 1200-1500 rpm; then add 0.5 parts of defoamer, 0.4 parts of leveling agent, and 6.1 parts of butyl acetate , disperse for 5-10 minutes at a speed of 600-800 rpm until the mixture is uniform;

[0044] The diluent is prepared according to the following preparation method: after mixing 10 parts of xylene, 55 parts of butyl acetate, and 35 parts of propylene glycol methyl ether acetate, disperse at a speed of 400-800 rp...

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Abstract

The invention relates to a polyurethane shower-coating transparent primer coating material which is prepared from a main agent, a curing agent and a diluent according to the proportion of (1-1.5): (0.5-0.8): (0.2-0.4), the main agent comprises the following components in parts by weight: 65-80 parts of alkyd resin, 1-10 parts of butyl acetate, 3-8 parts of propylene glycol methyl ether acetate, 10-25 parts of talcum powder and 1-5 parts of zinc stearate; 1-2 parts of a defoaming agent, 0.5-2 parts of an anti-settling agent and 0.1-0.5 part of a flatting agent; the polyurethane curtain-coating transparent primer coating material is a curtain-coating transparent primer coating material with high transparency, is suitable for continuous coating of panel furniture, has the obvious advantages of high efficiency, low cost, less waste, labor saving, lower organic volatile matters and the like compared with the traditional curtain-coating transparent primer coating material, can be used on various panel furniture, and has wide application prospects. And the method is particularly suitable for large-scale and continuous coating in factories.

Description

technical field [0001] The invention relates to a polyurethane flow coating transparent bottom coating material and a preparation method thereof; the polyurethane flow coating transparent bottom coating material coating material prepared by the invention can be applied to various panel furniture, and is especially suitable for large-scale, continuous Chemical coating operations; belonging to the field of chemical coatings. Background technique [0002] With the development of the national economy, the requirements for environmental protection are getting higher and higher, and furniture manufacturing enterprises are also constantly integrating. The development scale of furniture factories will become larger and larger, and the environmental protection and production efficiency of coating materials will also become higher and higher. [0003] During the construction process of conventional spray polyurethane coating materials, a large amount of diluent is added, VOC emissions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D7/20C08G18/42
Inventor 李立文
Owner CHENGDU ZHANCHEN PAINT