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Exterior wall latex paint with both surface drying time and weather resistance and preparation method of exterior wall latex paint

A surface-drying time, latex paint technology, applied to latex paints, biocide-containing paints, coatings, etc., can solve the problems of reducing the surface drying time of latex paints, poor air permeability of paints, bubbling, etc., and achieve loess cost Low cost, strong weather resistance, and the effect of reducing production costs

Inactive Publication Date: 2022-03-04
EASTERN GANSU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The closed film will prevent the penetration of water, which will make the air permeability of the paint worse, and easily cause problems such as bubbling, discoloration, and cracking. In addition, the formation of a closed film will also reduce the surface drying time of latex paint.

Method used

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  • Exterior wall latex paint with both surface drying time and weather resistance and preparation method of exterior wall latex paint
  • Exterior wall latex paint with both surface drying time and weather resistance and preparation method of exterior wall latex paint
  • Exterior wall latex paint with both surface drying time and weather resistance and preparation method of exterior wall latex paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] An exterior wall latex paint that takes both surface drying time and weather resistance into account. The latex paint is composed of the following raw materials in parts by weight: 310 parts of water, 200 parts of modified loess powder, 170 parts of heavy calcium carbonate, 38 parts of kaolin, and 996 parts of titanium 30 parts of white powder, 5.0 parts of HHBR cellulose, 15 parts of lauryl alcohol ester, 2.0 parts of AMP-95 multifunctional additive, 4.0 parts of 5040 dispersant, 6.5 parts of 5027 dispersant, 2.6 parts of DP-18 wetting agent, 1340 disinfectant 1.8 parts of foaming agent, 2.0 parts of NXE defoamer, 14.5 parts of ethylene glycol, 1.6 parts of MB-11 fungicide, 17 parts of FD1000 fluorocarbon emulsion and 180 parts of 615D emulsion.

[0046] Among them: modified loess powder refers to adding clean and dry loess to pure water with a mass of 2.5 to 3.5 times, stirring evenly and settling naturally, removing the upper suspension and bottom fine sand impurities...

Embodiment 2

[0054] An exterior wall latex paint that takes both surface drying time and weather resistance into account. The latex paint is composed of the following raw materials in parts by weight: 320 parts of water, 230 parts of modified loess powder, 130 parts of heavy calcium carbonate, 50 parts of kaolin, and 996 parts of titanium 20 parts of white powder, 4.8 parts of HHBR cellulose, 17 parts of lauryl alcohol ester, 1.8 parts of AMP-95 multifunctional additive, 5.0 parts of 5040 dispersant, 7.0 parts of 5027 dispersant, 2.0 parts of DP-18 wetting agent, 1340 disinfectant 2.2 parts of foaming agent, 2.5 parts of NXE defoamer, 14.2 parts of ethylene glycol, 1.5 parts of MB-11 fungicide, 22 parts of FD1000 fluorocarbon emulsion and 170 parts of 615D emulsion.

[0055] Wherein: the preparation method of modified loess powder and latex paint is with embodiment 1.

Embodiment 3

[0057] An exterior wall latex paint that takes both surface drying time and weather resistance into account. The latex paint is composed of the following raw materials in parts by weight: 300 parts of water, 240 parts of modified loess powder, 150 parts of heavy calcium carbonate, 20 parts of kaolin, and 996 parts of titanium 40 parts of white powder, 4.5 parts of HHBR cellulose, 16 parts of lauryl alcohol ester, 1.6 parts of AMP-95 multifunctional additive, 3.9 parts of 5040 dispersant, 6.0 parts of 5027 dispersant, 2.5 parts of DP-18 wetting agent, 1340 disinfectant 2.0 parts of foaming agent, 2.8 parts of NXE defoamer, 14.0 parts of ethylene glycol, 1.7 parts of MB-11 fungicide, 20 parts of FD1000 fluorocarbon emulsion and 175 parts of 615D emulsion.

[0058] Wherein: the preparation method of modified loess powder and latex paint is with embodiment 1.

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Abstract

The invention provides exterior wall latex paint with both surface drying time and weather resistance and a preparation method of the exterior wall latex paint, and relates to the technical field of architectural coatings. The preparation method specifically comprises the following steps: modifying loess powder with PMHS, uniformly mixing the modified loess powder with ground calcium carbonate, kaolin, titanium dioxide, hydroxyethyl cellulose, an emulsion, an auxiliary agent and water step by step, and filtering to obtain the loess-containing waterproof coating. According to the prepared exterior wall latex paint, the surface drying time is less than or equal to 0.8 h, the scrubbing resistance is more than 20000 times, and the exterior wall latex paint is not discolored, blistered, peeled off, pulverized and cracked after being kept for 2000h under white or light chromaticity. According to the invention, the PMHS modified loess is used for replacing part of auxiliaries and filler in the traditional exterior wall latex paint, so that the latex paint is endowed with an ecological function, the water resistance, acid resistance, washing resistance, color retention and self-cleaning property of the latex paint are effectively improved, the surface drying time is shortened, and the production cost is reduced. In addition, the preparation method disclosed by the invention is simple, low in energy consumption, free of high-temperature heating and low in requirements on equipment and production environment.

Description

technical field [0001] The invention belongs to the technical field of architectural coatings, and in particular relates to an exterior wall latex paint with both surface drying time and weather resistance performance and a preparation method thereof. Background technique [0002] At present, the most commonly used exterior wall coatings in my country mainly include two series of oil-based paints and water-based paints. Because oil-based paints contain harmful components such as organic solvents and heavy metals, they have been gradually eliminated, while water-based paints have poor hardness, stain resistance and weather resistance. Disadvantages such as lack of flexibility limit its wide range. [0003] In the prior art, there are technical solutions for improving the weather resistance of latex paint, but while improving the weather resistance, it is necessary to change the raw material formula of latex paint, so that when the latex paint acts on the building surface, it c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D127/12C09D5/02C09D5/14C09D5/18C09D7/62C09D7/20
CPCC09D133/00C09D5/024C09D5/025C09D5/14C09D5/18C09D7/20C08L27/12C08K9/10C08K3/34
Inventor 胡浩斌宋海燕王玉峰胡怀生张腊腊李莹莹
Owner EASTERN GANSU UNIVERSITY
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