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High-intensity anti-crack seam binder

A jointing agent, high-strength technology, used in non-polymer adhesive additives, adhesive types, adhesive additives, etc., can solve the problem that the performance does not meet the application requirements, cracks at the joints, and poor adhesion and other problems, to achieve the effect of low cost, convenient construction and high bonding strength

Active Publication Date: 2015-03-11
ZHEJIANG HEADERBOARD BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since fiber cement slabs and fiber-reinforced calcium silicate boards are siliceous calcareous materials, when the joint putty originally applied to paper-faced gypsum boards is used for such materials, poor adhesion and cracks at the joints will occur. Problem, the performance cannot meet the application requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The invention is composed of the following components by weight percentage: 30% of coarse quartz sand, 20% of fine quartz sand, 18.5% of heavy calcium powder, 1.5% of silicone glue, and 30% of white latex. The white latex is composed of the following components by weight percentage: vinyl acetate VAC 26%, polyvinyl alcohol PVA 2.8%, acrylic acid AA 0.5%, acrylamide AM 1.7%, diethylene glycol dibenzoate DEDB 3%, water 66%.

Embodiment 2

[0023] The invention is composed of the following components by weight percentage: 33% of coarse quartz sand, 16.5% of fine quartz sand, 16.5% of heavy calcium powder, 1.0% of silicone glue, and 33% of white latex. The white latex is composed of the following components by weight percentage: vinyl acetate VAC 22.5%, polyvinyl alcohol PVA 2.6%, acrylic acid AA1.2%, acrylamide AM1.2%, diethylene glycol dibenzoate DEDB4.5 %, water 68%.

Embodiment 3

[0025] The invention is composed of the following components by weight percentage: 28% of coarse quartz sand, 15% of fine quartz sand, 20% of heavy calcium powder, 2.0% of silicone glue, and 35% of white latex. Among them, the white latex is composed of the following components by weight percentage: vinyl acetate VAC31%, polyvinyl alcohol PVA 2.7%, acrylic acid AA0.3%, acrylamide AM1.1%, diethylene glycol dibenzoate DEDB4.9% , Water 60%.

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PUM

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Abstract

The invention relates to an adhesive, in particular to a high-intensity anti-crack seam binder. The high-intensity anti-crack seam binder consists of the following components by weight percent: 20-40 percent of coarse quartz sand, 10-30 percent of fine quartz sand, 10-30 percent of heavy calcium powder, 0.5-2 percent of a silicone adhesive and 20-40 percent of white latex. The high-intensity anti-crack seam binder is a viscous seam binder, can be used for binding seams of fiber cement flat boards and fiber-reinforced calcium silicate boards without addition of other materials, overcomes the shortcoming of seam putty of thistle boards, and has the characteristics of high bonding strength, crack prevention, convenience in construction, low cost, environmental protection, no toxicity and the like.

Description

technical field [0001] The invention relates to an adhesive, in particular to a high-strength anti-crack joint. Background technique [0002] At present, most of the joint putty on the market is used in gypsum board. In the process of design, development and production, gypsum board is used as the basis. This type of joint putty has good bonding performance and crack resistance to gypsum board. However, the waterproof, fireproof and mildew-proof performance of the paper-faced gypsum board is relatively poor, and the flexural strength is low, so the application field is limited. Fiber cement slabs and fiber reinforced calcium silicate boards on the market have all the advantages of paper-faced gypsum boards, and at the same time have good waterproof, fireproof, and mildew-proof properties. They have high flexural strength and are not easy to break. be usable. [0003] However, since fiber cement slabs and fiber-reinforced calcium silicate boards are siliceous calcareous mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J131/04C09J11/04
Inventor 史志强赵虎
Owner ZHEJIANG HEADERBOARD BUILDING MATERIALS CO LTD