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Method for preventing cracking of wall surface by isolating film

A technology with inner softness and outer rigidity and membrane, which is applied to building components, coatings, building insulation materials, etc., and can solve problems such as discomfort

Inactive Publication Date: 2004-07-14
程龙生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cracks don't affect safety, but they make people look uncomfortable

Method used

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  • Method for preventing cracking of wall surface by isolating film
  • Method for preventing cracking of wall surface by isolating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] 1. The weight ratio % formula embodiment of the adhesive layer for flexible construction:

[0026] No polyvinyl alcohol amide nitrile rubber GR-A white latex

[0027] 1 50 2 22 26

[0028] 2 60 2 18 20

[0029] 3 70 1 16 13

[0030] 4 75 1 10 14

[0031] 2. The weight ratio % formula embodiment of the adhesive layer for rigid construction:

[0032] No polyvinyl alcohol amide white latex

[0033] 1 80 2 18

[0034] 2 82 2 16

[0035] 3 85 1 14

[0036] 4 90 1 9

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PUM

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Abstract

A method for preventing cracking on wall surface includes such steps as applying the flexible colloid prepared from polyvinyl alcohol, amide, nitrile rubber GR-A and polyvinyl acetate emulsion adhesive on the wall surface, adhering a layer of glass fibre cloth, and coating with the rigid colloid prepared from polyvinyl alcohol, amide and polyvinyl acetate emulsion adhesive.

Description

technical field [0001] The invention belongs to a method for preventing cracks from appearing in a wall decoration layer. Background technique [0002] The walls have always been made of bricks, but are gradually changing to building blocks and panels. The materials that make up the building board include cement, gypsum, expanded perlite, cinder, slag, fly ash, etc. These wall materials will crack after a period of use. As time goes by, the wall will deform, and this deformation will be transmitted to the decorative layer outside the wall, such as coating, etc., and the decorative layer will appear cracks. Cracks do not affect safety, but they make people look uncomfortable. [0003] There are two main reasons for the cracking of the wall: one is the influence of moisture in the air, the wall will expand when it absorbs water, and shrink when the water evaporates; the other is the influence of thermal expansion and cold contraction. Above-m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D129/04E04B1/62E04F13/00
Inventor 程龙生
Owner 程龙生