Polishable high-hardness polyurethane bright white finish and preparation method thereof

A polyurethane, high-hardness technology, used in polyurea/polyurethane coatings, coatings, etc., can solve the problems of scratching the paint film and affecting production efficiency, and achieve the effect of good leveling, good fullness and high gloss

Inactive Publication Date: 2015-03-04
SKSHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of raw materials and processes in the past, the polishing step generally takes 72 hours, otherwise the paint film will be scratched, which will seriously affect the production efficiency

Method used

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  • Polishable high-hardness polyurethane bright white finish and preparation method thereof
  • Polishable high-hardness polyurethane bright white finish and preparation method thereof
  • Polishable high-hardness polyurethane bright white finish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0042] A polishable high-hardness polyurethane bright white finish, which is prepared by mixing a main agent, a curing agent and a diluent in a mass ratio of 1-1.4:0.8-1:0.5-0.7, wherein the main agent, curing agent and diluent are respectively It is prepared from the following components and weight ratio:

[0043] Wherein the composition and parts by weight ratio of main agent are as follows:

[0044]

[0045] The titanium white slurry is prepared according to the following components and weight ratios: 6-10 parts of butyl acetate, 25-35 parts of synthetic fatty acid, 1-3 parts of dispersant, 0.4-0.6 parts of fumed silica, titanium White powder 55-65 parts;

[0046] Wherein the component of curing agent and the ratio of parts by weight are as follows:

[0047]

[0048] Wherein the component of diluent and the ratio of parts by weight are as follows:

[0049] Xylene 25-35 parts

[0050] Butyl acetate 50-60 parts

[0051] 10-20 parts of propylene glycol methyl ether ...

Embodiment 1

[0062] Embodiment 1: a kind of polishable high hardness polyurethane bright white topcoat is formed by mixing the main agent, curing agent and thinner in a mass ratio of 1:0.8:0.5, wherein the main agent, curing agent and thinner are respectively composed of the following Components and parts by weight ratio are formulated:

[0063] Wherein the composition and parts by weight ratio of main agent are as follows:

[0064]

[0065] Wherein the component of curing agent and the ratio of parts by weight are as follows:

[0066]

[0067] Wherein the component of diluent and the ratio of parts by weight are as follows:

[0068] Xylene 25 parts

[0069] Butyl acetate 60 parts

[0070] 10 parts of propylene glycol methyl ether acetate.

[0071] The preparation method of the above-mentioned polishable high-hardness polyurethane bright white topcoat comprises the following steps:

[0072] Titanium white slurry is prepared according to the following preparation method: mix 25 p...

Embodiment 2

[0081] Embodiment 2: A kind of polishable high hardness polyurethane bright white topcoat is formed by mixing the main agent, curing agent and thinner in a mass ratio of 1.4:1:0.7, wherein the main agent, curing agent and thinner are respectively composed of the following Components and parts by weight ratio are formulated:

[0082] Wherein the composition and parts by weight ratio of main agent are as follows:

[0083]

[0084] Wherein the component of curing agent and the ratio of parts by weight are as follows:

[0085]

[0086] Wherein the component of diluent and the ratio of parts by weight are as follows:

[0087] Xylene 35 parts

[0088] Butyl acetate 50 parts

[0089] 20 parts of propylene glycol methyl ether acetate.

[0090] The preparation method of the above-mentioned polishable high-hardness polyurethane bright white topcoat comprises the following steps:

[0091] Titanium white slurry is prepared according to the following preparation method: mix 30 p...

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Abstract

The invention relates to a polishable high-hardness polyurethane bright white finish and a preparation method thereof. The polishable high-hardness polyurethane bright white finish is prepared by mixing a main agent, a curing agent and a diluent according to the mass ratio of (1-1.4) to (0.8-1) to (0.5-0.7), wherein the main agent comprises the following components in parts by weight: 25-35 parts of synthetic fatty acid resin, 12-17 parts of coconut oil resin, 2-7 parts of aldehyde ketone resin, 1-2 parts of a flatting agent, 0.1-0.5 part of a defoaming agent, 1-3 parts of an anti-settling agent, 40-50 parts of titanium dioxide pulp and 0.5-1.5 parts of a drier. The polishable high-hardness polyurethane bright white finish prepared by the preparation method has the characteristics of high glossiness, good fullness and good levelling property, and simultaneously can meet the requirement for polishing after being sprayed for 24 hours.

Description

technical field [0001] The invention relates to a paint for home decoration, in particular to a polishable high-hardness polyurethane bright white finish and a preparation method thereof. Background technique [0002] Now with the continuous development and maturity of coatings, the development direction of coatings has changed from the original emphasis on decoration and protection to more emphasis on environmental protection and functionality. Especially for bright white topcoats, users have particularly high requirements for its functionality, not only requiring yellowing resistance, high fullness, high hardness, but also polishing. The bright white finish used in the showcase requires good fullness of the paint film, no dust particles in the paint film under the light, and it looks smooth and bright. This requires the factory to polish the paint film when producing the showcase. Due to the limitations of raw materials and processes in the past, the polishing step genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D175/04C09D7/12C08G18/76C08G18/73C08G18/72C08G18/42C08G18/54C08G18/40
CPCC09D175/06C08G18/4027C08G18/4288C08G18/548C09D7/20C09D7/61
Inventor 洪杰沈超锜
Owner SKSHU PAINT
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