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Water-soluble anticarack gelatine powder, and application in building materials of powder

An anti-cracking rubber powder, water-soluble technology, applied in the field of construction adhesives, can solve the problems of water resistance, cracking, poor adhesion, etc., to achieve good anti-cracking and waterproof performance, high water retention rate, bonding powerful effect

Inactive Publication Date: 2007-05-09
兰州海锋建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has defects such as unstable coating, poor adhesion, and water resistance. The putty scraped by batches is easy to curl and crack. Labor-intensive and harmful to the human body

Method used

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  • Water-soluble anticarack gelatine powder, and application in building materials of powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Produce 100 kilograms of water-soluble anti-cracking rubber powder, with 45% (45 kilograms) carboxymethyl starch cellulose ether, 20% (20 kilograms) hydroxypropyl methylcellulose, 20% (20 kilograms) wood fiber, 1 % (1 kg) sodium dodecylbenzenesulfonate, 10% (10 kg) bentonite, and 4% (4 kg) polyacrylamide are put into a mixer and stirred for 20 minutes, then they can be bagged into finished products.

Embodiment 2

[0023] A kind of dry powder polymer mortar is made of 300 kilograms of 42.5# ordinary Portland cement, 100 kilograms of calcium carbonate (100-200 orders), 558 kilograms of quartz sand (0.1-0.5mm), 18 kilograms of water-soluble powders in the ratio of embodiment 1 It is dry-mixed with anti-cracking rubber powder, 10 kg of redispersible rubber powder, and 0.5 kg of polypropylene chopped fiber. During the construction process, add water and stir evenly, and scrape the wall surface in batches. After testing, the tensile bond strength is ≥0.6Mpa; the water resistance is ≥0.5Mpa; the compressive strength / flexural strength (cement base) is 2.8Mpa.

Embodiment 3

[0025] 300 kilograms of white cement, 335 kilograms of double-flying powder, 340 kilograms of quartz sand (200 orders), 8 kilograms of redispersible rubber powder and 16 kilograms of water-soluble anti-cracking rubber powder of the proportioning of embodiment 1 are mixed, and are mixed with water-resistant putty powder . Its tensile bonding strength> 0.68Mpa; compressive strength> 2.5Mpa; flexural strength> 0.9Mpa water resistance strength: 50 hours without foaming and powder removal.

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Abstract

This invention relates to a construction binder, which is prepared by: adding carboxymethyl amylocellulose ether, hydroxypropyl methylcellulose, lignin fibers, sodium dodecyl benzenesulfonate, bentonite and polyacrylamide into a mixer, and dry-stirring for a certain time until complete mixing. This invention fully exploits the advantages of organic and inorganic materials. The obtained construction binder has such advantages as high binding strength, high water-retaining rate, good anti-crack performance, good waterproof performance, no odor and no toxicity, and is environmentally friendly. The construction binder can be used as an additive for powdery building materials such as dry-mixed heat-insulation mortar, anti-crack mortar, brushing gypsum, putty powder, construction binder and polymeric mortar.

Description

technical field [0001] This invention relates to adhesives for construction. Background technique [0002] At present, the traditional wall finish in the construction industry is to use putty prepared from white latex, 107 glue, carboxymethyl cellulose, large white powder and white cement to coat the wall surface, and then scrape it flat with a trowel. It has defects such as unstable coating, poor adhesion, and water resistance. The putty scraped by batches is easy to curl and crack. Labor intensity is big, and harmful to human body. Contents of the invention [0003] In view of the above reasons, the object of the present invention is to provide a water-soluble anti-cracking rubber powder, which is a water-soluble polymer anti-cracking cementing material made of organic rubber powder and inorganic rubber powder. [0004] Another object of the present invention is to be used as an additive for various powder building materials (dry-mixed thermal insulation mortar, dry po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/28C04B18/26C04B26/20
CPCC04B40/0039Y02W30/91C04B14/104C04B18/248C04B24/20C04B24/2641C04B24/38C04B24/383
Inventor 王洪镇常春隆曹万智王尚琪
Owner 兰州海锋建材科技有限公司
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