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A kind of Grace for pu American coating and preparation method thereof

An American-style coating and dispersant technology, applied in the field of Grace, can solve problems such as poor adhesion, and achieve the effects of excellent adhesion, easy promotion and good wiping performance

Inactive Publication Date: 2015-07-29
JIANGMEN PENGJIANG DISTRICT JUJIANG PAINT CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the American-style coating products circulating on the market are nitro-based paints. When used in PU coating systems, there are generally functional defects such as poor adhesion.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A Grace for PU American-style coating, its composition and percentage by weight are: blowing castor oil 30%; high transparent pigment 20%; transparent filler 20%; diluent 26%; dispersant 2%; Precipitating agent 2%, it is made through the following steps:

[0025] (1) Add blown castor oil and dispersant to the dispersing tank, and start the dispersing machine to disperse for 10 minutes;

[0026] (2) Add highly transparent pigments and transparent fillers into the dispersion tank, and disperse at high speed for 10 minutes;

[0027] (3) Use a pump to send the materials in the disperser into the mill, and the finished product 1 is obtained after milling.

[0028] Among them, the highly transparent pigment is yellow H10G, the transparent filler is polyolefin, the diluent is rosin, the dispersant is soybean lecithin, and the anti-sedimentation agent is organic bentonite SD-1. The above components can be purchased from the market.

Embodiment 2

[0030] Adopt the same preparation method as Example 1, the difference is that the ratio of the components is slightly different, as follows:

[0031] Blown castor oil 45%; high transparent pigment 15%; transparent filler 15%; diluent 23%; dispersant 1%; anti-settling agent 1%.

[0032] Among them, red FGR is used as the highly transparent pigment, polyolefin is used as the transparent filler, tetramethylbenzene is used as the diluent, soybean lecithin is used as the dispersant, and organic bentonite SD-1 is used as the anti-sedimentation agent. The above components can be purchased from the market.

Embodiment 3

[0034] Adopt the same preparation method as Example 1, the difference is that the ratio of the components is slightly different, as follows:

[0035] Blown castor oil 40%; high transparent pigment 18%; transparent filler 18%; diluent 24%; dispersant 1%; anti-settling agent 1%.

[0036] Among them, red FGR is used as the highly transparent pigment, polyolefin is used as the transparent filler, tetramethylbenzene is used as the diluent, soybean lecithin is used as the dispersant, and organic bentonite SD-1 is used as the anti-sedimentation agent. The above components can be purchased from the market.

[0037] Because the blown castor oil resin contains hydroxyl groups, which can cross-link with the curing agent in the PU coating, so the Grace Wipe of the present invention has excellent adhesion on wood, and has good wiping performance. In addition, it can Improve the paint film toughness of PU coating, meanwhile, among the present invention, for the selection of dispersant, the ...

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PUM

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Abstract

The invention provides a glaze for PU (Polyurethane) American style coating. The glaze comprises the following components in percentage by weight: 30%-45% of blown castor oil, 15%-20% of high-transparency pigments, 15%-20% of transparent fillers, 23%-26% of diluting agents, 1%-2% of dispersing agents and 1%-2% of dust-proof agents. The invention also provides a preparation method of the glaze for the PU American style coating. The glaze provided by the invention can generate a cross-linking reaction with a solidifying agent contained in a PU coating because the blown castor oil resin contains hydroxy, thereby having excellent adhesive force and very good wiping property by being wiped on wood by using PU polyurethane paint; in addition, the glaze provided by the invention can also enhance the paint film toughness of the PU coating.

Description

technical field [0001] The invention relates to a Grace, in particular to a Grace used for PU American-style coating, and also provides a preparation method for the Grace. Background technique [0002] Grace is a translucent to transparent pigment colorant, which is composed of resin dissolved in oily solvent. It dries slowly and can be wiped, brushed and layered to make the overall color soft, natural and layered. Grace is an indispensable coloring product for American painting. At present, most of the American-style coating products circulating on the market are nitro-based paints. When used in PU coating systems, they generally have functional defects such as poor adhesion. Contents of the invention [0003] The first object of the present invention is to provide a kind of Grace for PU American-style coating, which has good adhesion in PU American-style coating and has better wiping performance. [0004] The second object of the present invention is to provide the pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D17/00
Inventor 王毅瑞
Owner JIANGMEN PENGJIANG DISTRICT JUJIANG PAINT CHEM CO LTD