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Waterproof anticracking construction exterior wall paint

A technology for building exterior walls and coatings, applied in the fields of coatings and building materials, can solve the problems of weak weather resistance and water resistance, burst cracking, and poor adhesion, and achieve the effect of good waterproof and crack resistance and good adhesion.

Inactive Publication Date: 2009-05-20
于士井
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing building exterior wall coatings have poor adhesion, weak weather resistance and water resistance, and cracks will occur after a long time of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0013] First put 100 parts of water into the container, add 40 parts of polyvinyl alcohol, 15 parts of bisphenol A epoxy resin, 5 parts of zinc silicate powder, 5 parts of shell powder, 5 parts of methyl cellulose, 3 parts of glass beads, Mix and stir 3 parts of glass fiber and 5 parts of nano-silica, heat up until all the objects in the container are dissolved, then add cold water and 0.1 part of defoamer, continue heating, use defoamer to eliminate the bubbles that appear, until Until the glue in the container is clear and transparent, put it in a special container after cooling, and then it can be coated with fillers and antibacterial agents for scraping.

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PUM

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Abstract

A waterproof and anti-cracking building exterior wall coating comprises base material, filler and an antibacterial agent and is characterized in that the base material is polyvinyl alcohol, bisphenol An epoxide resin, aluminium silicate powder, oyster shell whiting, methylcellulose, glass microballoon, fiber glass, nanometer silicon dioxide, antibacterial agent and antifoaming agent, the filler is calcium carbonate and the antibacterial agent is calcium sulphate crystal whisker artificially growing. By virtue of methyl silica high polymer formed after the reaction between heated silicate and organosilicone, the coating can form the binding of chemical bonds when being coated on the rigid surface of a concrete wall, with the fastness being far superior to that of the physical covering of a conventional coating; in the coating, nanometer silica powder and calcium sulphate crystal whisker are also adopted as the antibacterial agent, therefore, the coating has good effect on inhibiting and killing bacteria, fungus and mycete and is characterized by good waterproof and anti-cracking performance, no bubbling and cracking and good adhesive force.

Description

Technical field [0001] The invention relates to a coating, in particular to a waterproof and anti-cracking architectural exterior wall coating, which belongs to the category of building materials. Background technique [0002] The existing building exterior wall coatings are mainly solvent-based coatings and water-based coatings, which are applied to the outer surface of the wall to achieve decorative effects and prevent erosion by water, air, microorganisms and various corrosive substances. It is composed of base materials, additives and fillers. Existing coatings for exterior walls of buildings have poor adhesion, weak weather resistance and water resistance, and cracks will occur after a long time of use. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a waterproof and anti-cracking architectural exterior wall coating by improving the formula. Oxygen polymer, coated o...

Claims

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Application Information

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IPC IPC(8): C09D129/04C09D7/12C09D5/16C09D163/02
Inventor 于士井
Owner 于士井
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