Preparation method of anti-aging exterior wall latex paint

A latex paint and anti-aging technology, applied in the field of latex paint, can solve the problems of aging, peeling off the whole layer and fading of exterior wall latex paint, and achieve the effects of enhanced construction performance, improved stain resistance, and reduced pigment decay.

Inactive Publication Date: 2021-01-01
廖莲英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an anti-aging exterior wall latex paint for the aging of the exterior wall latex coating due to natural conditions and light radiation, which causes loss of light, fading, pulverization, cracking, peeling and even the entire layer falls off. Coating preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In parts by weight, weigh 20 parts of acrylic acid, 30 parts of butyl acrylate, 20 parts of methyl methacrylate, 10 parts of methacrylic acid, 10 parts of acrylamide, 1 part of sodium dodecylbenzenesulfonate, 1 part of Parts of fatty alcohol polyoxyethylene ether, 2 parts of vinyltrimethoxysilane, 5 parts of sodium bicarbonate, 0.4 parts of sodium persulfate, 80 parts of deionized water, sodium dodecylbenzenesulfonate, fatty alcohol polyoxyethylene Add ether into deionized water, stir at 250r / min for 10min at room temperature to obtain an emulsifier solution, mix acrylic acid, butyl acrylate, methyl methacrylate, methacrylic acid and acrylamide and put it in a mixer. Stir at a speed of 400r / min for 5min to obtain a mixed monomer. Slowly add 4 / 5 parts by weight of the mixed monomer to 1 / 2 part by weight of the emulsifier solution at a rate of 10mL / min. Stir at a speed of 300~400r / min for 1h to obtain a pre-emulsion, add sodium bicarbonate to the remaining 1 / 2 weight part...

Embodiment 2

[0038] In parts by weight, weigh 25 parts of acrylic acid, 35 parts of butyl acrylate, 25 parts of methyl methacrylate, 15 parts of methacrylic acid, 15 parts of acrylamide, 2 parts of sodium dodecylbenzenesulfonate, 2 parts of Parts of fatty alcohol polyoxyethylene ether, 4 parts of vinyltrimethoxysilane, 7 parts of sodium bicarbonate, 0.5 parts of sodium persulfate, 90 parts of deionized water, sodium dodecylbenzenesulfonate, fatty alcohol polyoxyethylene Add ether into deionized water, stir at 275r / min for 15min at room temperature to obtain an emulsifier solution, mix acrylic acid, butyl acrylate, methyl methacrylate, methacrylic acid, and acrylamide and put it in a mixer. Stir at a speed of 450r / min for 7min to obtain a mixed monomer. Slowly add 4 / 5 parts by weight of the mixed monomer to 1 / 2 part by weight of the emulsifier solution at a rate of 15mL / min. Stir at a speed of 350r / min for 1.5h to obtain a pre-emulsion, add sodium bicarbonate to the remaining 1 / 2 weight par...

Embodiment 3

[0042] In parts by weight, weigh 30 parts of acrylic acid, 40 parts of butyl acrylate, 30 parts of methyl methacrylate, 20 parts of methacrylic acid, 20 parts of acrylamide, 3 parts of sodium dodecylbenzenesulfonate, 3 parts of Parts of fatty alcohol polyoxyethylene ether, 6 parts of vinyltrimethoxysilane, 10 parts of sodium bicarbonate, 0.6 parts of sodium persulfate, 100 parts of deionized water, sodium dodecylbenzenesulfonate, fatty alcohol polyoxyethylene Add ether into deionized water, stir at 300r / min for 20min at room temperature to obtain an emulsifier solution, mix acrylic acid, butyl acrylate, methyl methacrylate, methacrylic acid, and acrylamide and put it in a mixer. Stir at a speed of 500r / min for 10min to obtain a mixed monomer. Slowly add 4 / 5 parts by weight of the mixed monomer to 1 / 2 part by weight of the emulsifier solution at a rate of 20mL / min. Stir at a speed of 400r / min for 2h to obtain a pre-emulsion, add sodium bicarbonate to the remaining 1 / 2 weight pa...

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Abstract

The invention relates to a preparation method of an anti-aging exterior wall latex paint, and belongs to the technical field of latex paints. The anti-aging exterior wall latex paint is prepared by adding modified silica sol. The silica sol is modified, so that the silica sol is better compatible with a polymer emulsion, and the application range of the silica sol can be expanded. The silica sol modified paint is more excellent in performance, the hardness and adhesive force of a film and the stain resistance, water resistance and aging resistance of the paint are obviously improved, particlesurface coordination in silica sol is vacant, and the anti-aging exterior wall latex paint has very high surface activity, has a certain adsorption effect on pigment, filler and other microparticles,and can reduce pigment attenuation caused by ultraviolet irradiation, so film chalking is reduced; and the silicon dioxide particles in the silica sol are dispersed to form a Si-O-Si network structure, so that the air permeability, the aging resistance and the like of the film can be improved.

Description

technical field [0001] The invention relates to a preparation method of an anti-aging exterior wall latex paint, which belongs to the technical field of latex paint. Background technique [0002] Architectural coatings are the leading decorative materials for buildings. Decorating buildings with it can form different textures and shapes, different styles and three-dimensional effects. Therefore, architectural coatings can not only make the interior and exterior of buildings neat and beautiful, but also protect the coated building materials, prolong their service life and improve the internal and external use of buildings. This plays an important role in beautifying life and the environment. Compared with external decoration materials such as facing bricks, glass curtain walls, and decorative stones, architectural coatings have many obvious features and advantages, such as easy construction and renovation, maintaining the freshness of buildings, light weight, and no safety ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D7/61C09D7/62C09D7/63C09D7/65C09D5/16C08F220/18C08F220/14C08F220/06C08F220/56C08F230/08
CPCC08L2201/08C08L2205/03C09D5/1687C09D143/04C08F220/1804C08L1/286C08L71/02C08K13/06C08K9/06C08K3/36C08K3/22C08K3/34C08K5/053C08K5/098C08F220/14C08F220/06C08F220/56C08F230/085
Inventor 廖莲英
Owner 廖莲英
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