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Anti-sinking polyurethane (PU) transparent primer and preparation method thereof

A transparent primer and anti-sag technology, which is applied in coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve the problems of low transparency, slow drying speed, and poor anti-sag properties, and achieve good transparency, easy polishing, Strong anti-sag effect

Inactive Publication Date: 2018-11-30
ZHONGSHAN DOIT PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the commonly used wood primers in the market, the common defects are slow drying speed, poor sag resistance, low transparency, and general sanding performance, etc.

Method used

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  • Anti-sinking polyurethane (PU) transparent primer and preparation method thereof
  • Anti-sinking polyurethane (PU) transparent primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of anti-sag PU transparent primer

[0023] Raw materials: 36 parts of short oil alkyd resin, 15 parts of polyamide wax anti-settling slurry, 0.1 part of defoamer, 28 parts of transparent powder, 15 parts of talcum powder, 0.5 parts of zinc stearate, 2 parts of toluene, 3.4 parts of sec-butyl ester share.

[0024] Preparation steps:

[0025] (1) Mix and disperse short oil alkyd resin, anti-settling slurry and defoamer at 500 rpm for 10 minutes;

[0026] (2) Add transparent powder, talcum powder, and zinc stearate under stirring, and disperse at 1000 rpm until the fineness is ≤55 μm, and the dispersion temperature is 55°C;

[0027] (3) Add toluene and sec-butyl ester under stirring, and disperse at 1000 rpm for 3 minutes to obtain the product.

Embodiment 2

[0029] Preparation of anti-sag PU transparent primer

[0030] Raw materials: 40 parts of short oil alkyd resin, 10 parts of polyamide wax anti-settling slurry, 0.5 parts of defoamer, 20 parts of transparent powder, 20 parts of talc powder, 0.1 part of zinc stearate, 5 parts of toluene, 1 part of sec-butyl ester share.

[0031] Preparation steps:

[0032] (1) Mix and disperse short oil alkyd resin, anti-settling slurry and defoamer at 1000 rpm for 3 minutes;

[0033] (2) Add transparent powder, talcum powder, and zinc stearate under stirring, and disperse at 1500 rpm until the fineness is ≤55 μm, and the dispersion temperature is 55°C;

[0034] (3) Add toluene and sec-butyl ester under stirring, and disperse at 500 rpm for 8 minutes to obtain the product.

Embodiment 3

[0036] Preparation of anti-sag PU transparent primer

[0037] Raw materials: 30 parts of short oil alkyd resin, 20 parts of polyamide wax anti-settling slurry, 0.1 part of defoamer, 30 parts of transparent powder, 10 parts of talc powder, 1.5 parts of zinc stearate, 1 part of toluene, 5 parts of sec-butyl ester share.

[0038] Preparation steps:

[0039] (1) Mix and disperse the short oil alkyd resin, anti-settling slurry and defoamer at 600 rpm for 5 minutes;

[0040] (2) Add transparent powder, talc powder, and zinc stearate under stirring, and disperse at 1100 rpm until the fineness is ≤55 μm, and the dispersion temperature is 55°C;

[0041] (3) Add toluene and sec-butyl ester under stirring, and disperse at 600 rpm for 5 minutes to obtain.

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PUM

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Abstract

The invention discloses an anti-sinking polyurethane (PU) transparent primer. The anti-sinking PU transparent primer is characterized by comprising the following raw materials in parts by mass: 30-40parts of short oil alkyd resin, 10-20 parts of anti-settling slurry, 0.1-0.5 part of a defoaming agent, 20-30 parts of transparent powder, 10-20 parts of talcum powder, 0.1-1.5 parts of zinc stearate,1-5 parts of toluene and 1-5 parts of sec-butyl ester. According to the anti-sinking PU transparent primer prepared by using the formula provided by the invention, the drying speed of the primer is ensured, and comprehensive performance and sinking resistance of the primer are ensured. The problem that a PU primer is low in drying speed, poor in sinking resistance, low in transparency and generalin sanding property is solved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an anti-sag PU transparent primer and a preparation method thereof. Background technique [0002] Paint is an indispensable decorative material in modern life. PU paint is a kind of paint with a large amount and a wide range of modern paints, which endows the role of decoration and protection. PU paint is the collective name of all polyurethane coatings. Its film-forming method is natural film-forming without special process. It has good hardness, good fullness, good adhesion, good durability and good hand feeling, which can well show the textile and texture of the floor. color. [0003] Among the wood primers commonly used in the market, the common defects are slow drying speed, poor sag resistance, low transparency, and general sanding performance. Therefore, designing and developing an anti-sag primer has become an important topic in the development of furniture coatings. ...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D5/00C09D7/61C09D175/04
Inventor 许水连甘文华吴哲张海星朱永钱
Owner ZHONGSHAN DOIT PAINT CO LTD
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