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Anti-cracking exterior wall putty and preparation method thereof

An external wall putty and anti-cracking technology, applied in the direction of filling slurry, etc., can solve the problems of unstable chemical properties, low bonding strength, poor water resistance, etc., and achieve superior bonding strength, good cracking resistance, and gloss good effect

Inactive Publication Date: 2016-08-03
孙法峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are many exterior wall putties on the market, some of which have low bonding strength and poor adhesion, and some have poor water resistance, easy hollowing, peeling, and cracking, which eventually lead to cracking of the wall and leakage of the wall , some chemical properties are unstable, easy to be yellowed and blackened, and the external wall putty with excellent comprehensive performance has almost no

Method used

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  • Anti-cracking exterior wall putty and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 A crack-resistant exterior wall putty prepared from the following raw materials (23 kg per part): 15 parts of calcium carbonate, 11 parts of polyvinylidene chloride, 10 parts of microcrystalline cellulose, 13 parts of polyvinyl alcohol 13 parts of attapulgite, 10 parts of soluble starch, 95 parts of heavy calcium carbonate, 28 parts of high calcium fly ash, 2.8 parts of emulsified silicone oil, 3.5 parts of sodium carboxymethyl cellulose, 1.6 parts of benzoic acid, lignocellulose 3.6 parts, 2.5 parts of casein.

[0045] The preparation steps of a crack-resistant exterior wall putty are as follows:

[0046] (1) Crush the polyvinyl alcohol, put it in the reaction tank, add 3 times the mass of water, add high-calcium fly ash after standing for 2 hours, heat to 56°C, keep warm for 2 hours, stir evenly, filter, and cool to Room temperature, dry, grind, pass through 80 mesh sieve;

[0047] (2) Put the attapulgite and heavy calcium carbonate in a pulverizer, mechan...

Embodiment 2

[0052] Example 2 A crack-resistant exterior wall putty prepared from the following raw materials (14 kg per part): 20 parts of calcium carbonate, 16 parts of polyvinylidene chloride, 16 parts of microcrystalline cellulose, and 17 parts of polyvinyl alcohol 18 parts of attapulgite, 20 parts of soluble starch, 105 parts of heavy calcium carbonate, 36 parts of high calcium fly ash, 3.6 parts of emulsified silicone oil, 4.2 parts of sodium carboxymethyl cellulose, 2.2 parts of benzoic acid, lignocellulose 4.3 parts, 3.2 parts of casein.

[0053] The preparation steps of a crack-resistant exterior wall putty are as follows:

[0054] (1) Crush the polyvinyl alcohol, put it in the reaction tank, add 5 times the mass of water, add high-calcium fly ash after standing for 3 hours, heat to 62°C, keep it warm for 4 hours, stir evenly, filter, and cool to Dry at room temperature, grind, pass through a 120-mesh sieve, and set aside;

[0055] (2) Put the attapulgite and heavy calcium carbo...

Embodiment 3

[0060] Example 3 A crack-resistant exterior wall putty prepared from the following raw materials (15 kg per part): 17 parts of calcium carbonate, 12 parts of polyvinylidene chloride, 12 parts of microcrystalline cellulose, and 14 parts of polyvinyl alcohol 15 parts of attapulgite, 13 parts of soluble starch, 98 parts of heavy calcium carbonate, 30 parts of high calcium fly ash, 3.0 parts of emulsified silicone oil, 3.8 parts of sodium carboxymethyl cellulose, 1.8 parts of benzoic acid, lignocellulose 3.8 parts, 2.7 parts of casein.

[0061] The preparation steps of a crack-resistant exterior wall putty are as follows:

[0062] (1) Crush the polyvinyl alcohol, put it in the reaction tank, add 3.5 times the mass of water, add high-calcium fly ash after standing for 2.3 hours, heat to 58 ° C, keep warm for 2.5 hours, stir evenly, filter, and cool to At room temperature, dry, grind, pass through a 90-mesh sieve, and set aside;

[0063] (2) Put the attapulgite and heavy calcium c...

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Abstract

The invention discloses anti-cracking exterior wall putty. The anti-cracking exterior wall putty is prepared from, by weight, 15-20 parts of calcium carbonate, 11-16 parts of polyvinylidene chloride, 10-16 parts of microcrystalline cellulose, 13-17 parts of polyvinyl alcohol, 13-18 parts of attapulgite, 10-20 parts of soluble starch, 95-105 parts of heavy calcium carbonate, 28-36 parts of high-calcium pulverized fuel ash, 2.8-3.6 parts of emulsified silicone oil, 3.5-4.2 parts of sodium carboxymethyl cellulose, 1.6-2.2 parts of benzoic acid, 3.6-4.3 parts of lignocellulose and 2.5-3.2 parts of casein. The anti-cracking exterior wall putty is scientific in composition, good in anti-cracking performance, extremely strong in water resistance and bonding properties, safe, environmentally friendly and long in service life, and does not produce hollowing, peeling, cracking and shedding after being affected with water or damp.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a crack-resistant exterior wall putty and a preparation method thereof. Background technique [0002] Putty is a supporting product used for base treatment when building fillers are painted. Putty is generally composed of base material, filler, water and additives. The base material, also known as the binder, is the most important component of the putty, and it mainly plays various functions such as bonding. The filler mainly acts as a filling, and the commonly used ones are calcium oxide, talcum powder and quartz sand. Additives include thickeners, water retaining agents, preservatives, etc. Thickeners and water-retaining agents play the role of water retention, improving storage and construction, and cellulose is generally used. Preservatives are mainly used to prevent deterioration due to corruption during storage. In addition, there are antifreeze agents, slip...

Claims

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Application Information

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IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 不公告发明人
Owner 孙法峰
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