Exterior wall crack resistant elastic putty powder

An elastic putty and exterior wall technology, applied in the direction of filling slurry, etc., can solve the problems of poor crack resistance, affecting paint painting, cracks on the surface of the base layer, etc., and achieve the effects of improving bonding strength, improving service life and simple construction.

Active Publication Date: 2014-01-08
岑其挺
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Problems solved by technology

However, the existing exterior wall putty powder has the disadvantage of poor crack resistance, w

Method used

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  • Exterior wall crack resistant elastic putty powder

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[0013] An anti-cracking elastic putty powder for exterior walls, composed of the following weight (kg) of raw materials: lime calcium powder 20, white cement 15, double fly powder 15, quartz powder 10, modified talc powder 40, carboxymethyl cellulose 1.2, Carboxymethyl starch ether 2.5, redispersible latex powder 3, polypropylene short fiber 3, aluminum silicate fiber 1, NSJF-2 rubber powder 0.8;

[0014] The preparation method of the modified talc powder is as follows: weigh talc powder, bentonite, jade powder, and boron mud in a weight ratio of 5:2:2:1 and mix them evenly, add 1% triethanolamine, 2% sodium polyacrylate, 1.5% calcium lignosulfonate, 0.6% vinyl tris (β-methoxyethoxy) silane, 2000rpm high-speed grinding for 12 minutes, drying, crushing, passing through a 400 mesh sieve, and then adding an appropriate amount of water to make a slurry A slurry with a concentration of 45%, add 2% sodium dodecylbenzene sulfonate, 3% polyvinylpyrrolidone, 5% silicone acrylic emulsion, ...

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Abstract

The invention discloses exterior wall crack resistant elastic putty powder comprising the following raw materials: by weight, 20-30 parts of ash calcium powder, 10-15 parts of white cement powder, 10-20 parts of calcium carbonate powder, 10-15 parts of quartz powder, 40-50 parts of modified talcum powder, 1-1.5 parts of carboxymethyl cellulose, 2-3 parts of carboxymethyl starch ether, 3-4 parts of redispersible latex powder, 2-3 parts of polypropylene staple fiber, 1-2 parts of aluminum silicate fiber and 0.5-1 part of NSJF-2 latex powder. The powder putty has crack resistance, frost resistance, heat resistance, alkali resistance, water resistance and other functions, can greatly improve the bonding strength of a wall body paint substrate, improves the service life of a wall body paint, overcomes the defects of easy falling, peeling and cracking of traditional putty powder, is completely environmentally friendly, may not pollute the environment, is harmless to human body, easy to use, simple to construct, durable and reliable, and has obvious social benefits and environmental benefits.

Description

technical field [0001] The invention relates to an anti-crack elastic putty powder for external walls, which belongs to the technical field of building materials. Background technique [0002] With the development of my country's coating industry and the progress of coating technology, as well as the increasingly perfect market economy and the continuous improvement of people's living standards, higher and higher requirements are put forward for the quality of coating products and the quality of final products. At the same time, the matching putty powder has also attracted everyone's attention. Putty powder for exterior wall is made of inorganic gelling material as base material, combined with bonding material and other additives, and is an indispensable product before painting. But the existing exterior wall putty powder has the shortcoming of poor crack resistance, which causes cracks to appear on the surface of the base, thereby affecting the painting of paint. Content...

Claims

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Application Information

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IPC IPC(8): C09D5/34
Inventor 王传福
Owner 岑其挺
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