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Solvent-free polyurethane finishing paint

A solvent-free polyurethane and topcoat technology, applied in the field of topcoat, can solve the problems of no waterproof function, oxidation, corrosion, etc.

Inactive Publication Date: 2018-12-11
天津市津海特种涂料装饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has decorative and protective functions, such as color, gloss, texture, etc., and it also needs to be resistant to harsh environments. However, after a period of use, the existing topcoat will be corroded and oxidized due to its lack of waterproof function. And if there is a fire, the fire cannot be effectively prevented from continuing. For the sake of reference, we have proposed a solvent-free polyurethane topcoat to solve the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A solvent-free polyurethane topcoat, comprising the following raw materials in parts by weight: 80 parts of liquid filler, 10 parts of auxiliary liquid filler, 50 parts of light calcium carbonate, 4 parts of thixotropic agent, 8 parts of chain extender, and 6 parts of plasticizer , 8 parts of flame retardant additive, 0.5 part of catalyst, 0.2 part of anti-aging agent, 20 parts of aluminum hydroxide, 10 parts of chlorinated paraffin.

[0020] Its preparation method comprises the following steps:

[0021] S1, add liquid filler, auxiliary liquid filler and light calcium carbonate into the stirring tank, and then add thixotropic agent, plasticizer, chain extender, aluminum hydroxide, chlorinated paraffin and flame retardant additive according to the proportion inside the mixing tank;

[0022] S2, adding water into the stirring box, heating the water to 80-90°C, then stirring in the stirring box for 1-3 hours, and then performing dehydration treatment;

[0023] S3, coolin...

Embodiment 2

[0026] A solvent-free polyurethane topcoat, comprising the following raw materials in parts by weight: 90 parts of liquid filler, 20 parts of auxiliary liquid filler, 60 parts of light calcium carbonate, 5 parts of thixotropic agent, 9 parts of chain extender, and 7 parts of plasticizer , 9 parts of flame retardant additive, 0.6 part of catalyst, 0.3 part of anti-aging agent, 30 parts of aluminum hydroxide, 11 parts of chlorinated paraffin.

[0027] Its preparation method comprises the following steps:

[0028] S1, add liquid filler, auxiliary liquid filler and light calcium carbonate into the stirring tank, and then add thixotropic agent, plasticizer, chain extender, aluminum hydroxide, chlorinated paraffin and flame retardant additive according to the proportion inside the mixing tank;

[0029] S2, adding water into the stirring box, heating the water to 80-90°C, then stirring in the stirring box for 1-3 hours, and then performing dehydration treatment;

[0030] S3, coolin...

Embodiment 3

[0033] A solvent-free polyurethane topcoat, comprising the following raw materials in parts by weight: 100 parts of liquid filler, 30 parts of auxiliary liquid filler, 70 parts of light calcium carbonate, 6 parts of thixotropic agent, 10 parts of chain extender, and 8 parts of plasticizer , 10 parts of flame retardant additives, 0.7 parts of catalyst, 0.4 parts of anti-aging agent, 40 parts of aluminum hydroxide, 12 parts of chlorinated paraffin.

[0034] Its preparation method comprises the following steps:

[0035] S1, add liquid filler, auxiliary liquid filler and light calcium carbonate into the stirring tank, and then add thixotropic agent, plasticizer, chain extender, aluminum hydroxide, chlorinated paraffin and flame retardant additive according to the proportion inside the mixing tank;

[0036] S2, adding water into the stirring box, heating the water to 80-90°C, then stirring in the stirring box for 1-3 hours, and then performing dehydration treatment;

[0037] S3, ...

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PUM

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Abstract

The invention discloses solvent-free polyurethane finishing paint. The solvent-free polyurethane finishing paint is prepared from the following raw materials in parts by weight: 80-120 parts of liquidfiller, 10-50 parts of auxiliary liquid filler, 50-90 parts of light calcium carbonate, 4-8 parts of thixotropic agent, 8-12 parts of chain extender, 6-10 parts of plasticizer, 8-12 parts of flame-retardant additives, 0.5-0.9 part of catalyst, 0.2-0.6 part of anti-aging agent, 20-60 parts of aluminum hydroxide and 10-14 parts of chlorinated paraffin. The finishing paint disclosed by the inventioncan be effectively waterproof, and the phenomenon of corrosion caused by water in long time is avoided; meanwhile, the finishing paint can further have fireproof performance, and flame continuation is effectively prevented, so that the solvent-free polyurethane finishing paint can be extensively used as floor paint, plywood paint and high-ornamental anticorrosive paint and meets ever-growing market requirements.

Description

technical field [0001] The invention relates to the technical field of topcoats, in particular to a solvent-free polyurethane topcoat. Background technique [0002] Topcoat is the final coating of painting, and it is the last layer applied in building wall decoration. The overall effect after decoration is reflected through this layer. Therefore, there are high requirements for the materials used, not only to have good chroma and brightness, but also to have good pollution resistance, aging resistance, moisture resistance, mildew resistance, and non-polluting, safe and non-toxic , No fire hazard, convenient construction, fast drying of coating film, good gloss and color retention, good air permeability and so on. It has decorative and protective functions, such as color, luster, texture, etc. It also needs to be resistant to harsh environments. However, after a period of use, the existing topcoat will be corroded and oxidized due to its lack of waterproof function. And if ...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/61C09D7/65C09D5/18C09D5/08
CPCC09D175/04C08K2003/2227C08K2003/265C08L2201/02C09D5/08C09D5/18C09D7/61C09D7/65C08L91/06C08K3/26C08K3/22
Inventor 刘国海
Owner 天津市津海特种涂料装饰有限公司
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