Rain-imprint-resistant elastic coating and preparation method thereof

An elastic coating and rain-resistant technology, applied in the coating and other directions, can solve the problems of easy formation of bright spots and poor resistance to rain marks, etc., achieve low HLB value, improve the effect of rain marks, and improve the effect of rain mark resistance

Inactive Publication Date: 2018-06-01
CHENGDU FIRST NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing elas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of rain mark resistant elastic paint, the parts by weight of each raw material are as follows: 20 parts of water, 40 parts of elastic emulsion, 0.8 part of film-forming aid, 0.3 part of wetting agent, 0.3 part of pH regulator, 0.3 part of defoamer, dispersant 1 part, 1.5 parts of antifreeze, 0.3 parts of antiseptic and bactericide, 45 parts of pigment and filler, and 1.5 parts of thickener.

[0033]Preferably, the components of the elastic emulsion are calculated by weight percentage as follows: 50 parts of silicone-acrylic elastic emulsion, 40 parts of pure acrylic elastic emulsion, and 40 parts of styrene-acrylic elastic emulsion.

[0034] The present embodiment also provides the preparation method of the above-mentioned rain mark-resistant elastic coating, (1) weigh the materials in the raw material formula according to the above-mentioned parts by weight; (2) add part of the water to the bucket of the high-speed disperser and stir for the first time for 2 minu...

Embodiment 2

[0036] A kind of rain mark resistant elastic coating, the weight parts of each raw material are as follows: 15 parts of water, 30 parts of elastic emulsion, 0.3 part of film-forming aid, 0.1 part of wetting agent, 0.3 part of defoamer, 0.5 part of dispersant, pH adjuster 0.1 part, antifreeze 1 part, antiseptic bactericide 0.1 part, pigment and filler 35 parts, thickener 0.8 part.

[0037] Preferably, the components of the elastic emulsion are calculated by weight percentage as follows: 60 parts of silicone-acrylic elastic emulsion, 50 parts of pure acrylic elastic emulsion, and 45 parts of styrene-acrylic elastic emulsion.

[0038] This embodiment also provides the preparation method of the above-mentioned rain mark-resistant elastic coating, (1) weigh the materials in the raw material formula according to the above-mentioned parts by weight; (2) add part of the water in the step (1) to the bucket of the high-speed disperser Stir for 0.5min. The frequency of the first stirring...

Embodiment 3

[0040] A kind of rain mark resistant elastic paint, the parts by weight of each raw material are as follows: 18 parts of water, 37 parts of elastic emulsion, 0.5 part of film-forming aid, 0.2 part of wetting agent, 0.3 part of pH regulator, 0.5 part of defoamer, dispersant 0.9 parts, 1.2 parts of antifreeze, 0.2 parts of antiseptic and bactericide, 38 parts of pigments and fillers, and 1.2 parts of thickener.

[0041] Preferably, the components of the elastic emulsion are calculated by weight percentage as follows: 40 parts of silicone-acrylic elastic emulsion, 20 parts of pure acrylic elastic emulsion, and 35 parts of styrene-acrylic elastic emulsion.

[0042] This embodiment also provides the preparation method of the above-mentioned rain mark-resistant elastic coating, (1) weigh the materials in the raw material formula according to the above-mentioned parts by weight; (2) add part of the water in the step (1) to the bucket of the high-speed disperser Stir for 1min, the fre...

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PUM

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Abstract

The invention discloses a rain-imprint-resistant elastic coating and a preparation method thereof, relates to the technical field of petrochemical elastic coatings, and solves the problem that brightspots are easily formed on the prior elastic coating. The composition consists of the following raw materials in parts by weight: 15-20 parts of water, 30-40 parts of an elastic emulsion, 0.3-0.8 partof a film-forming auxiliary agent, 0.1-0.3 part of a wetting agent, 0.1-0.3 part of a pH regulator, 0.3-0.5 part of a defoaming agent, 0.5-1 part of a dispersant, 1-1.5 parts of an anti-freezing agent, 0.1-0.3 part of an antiseptic bactericidal agent, 35-45 parts of pigment and filler, and 0.8-1.5 parts of a thickening agent. The preparation method of the rain-imprint-resistant elastic coating comprises the following steps: (1) carrying out weighing according to the weight; (2) adding a part of the water in the step (1) into a material barrel of a high-speed dispersion machine for stirring, sequentially adding the wetting agent, the dispersing agent, the defoaming agent, the pH regulator, the antiseptic agent and the pigment and filler, carrying out uniform mixing, and then grinding the obtained slurry to 60-micron fineness; and (3) adding the remaining water in the step (2), the elastic emulsion, the defoaming agent, the antiseptic bactericidal agent, the film-forming auxiliary agent, the anti-freezing agent and the thickening agent in the ground slurry, and carrying out uniform mixing.

Description

technical field [0001] The invention belongs to the technical field of petrochemical elastic coatings, in particular to a rain mark-resistant elastic coating and a preparation method thereof. Background technique [0002] With its water-based environmental protection properties, latex paint has become the leading product in elastic paint for exterior walls. The decorative effect of exterior wall latex paint is the most important function for users, but in the engineering application of latex paint, rain marks often occur after rain, which seriously damages the decorative effect of exterior wall latex paint. The phenomenon of rain marks is mainly that hydrophilic substances or oligomers such as emulsifiers, wetting agents, and dispersants in the paint film migrate to the surface with rain or dew, and form water droplets or water lines. Accumulates on the paint film to form bright spots. The rain marks of elastic coatings on exterior walls are a special form of discoloration...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D125/14C09D7/80C09D7/40C09D7/65C09D7/61
CPCC09D143/04C08K2003/2241C08K2003/265C08L2205/035C09D133/04C08L33/04C08L25/14C08K3/22C08K3/26C08K3/346C08L43/04
Inventor 高如玉郅亚楠诸子瑜
Owner CHENGDU FIRST NEW MATERIAL CO LTD
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