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Outer wall anti-cracking elastic putty and preparation method thereof

An elastic putty and exterior wall technology, applied in the direction of filling slurry, etc., can solve the problems of poor weather resistance, poor elasticity, easy cracking, etc., and achieve improved flame retardancy and corrosion resistance, good elasticity, and good weather resistance Effect

Inactive Publication Date: 2017-04-26
安庆市凯瑞建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the existing putty powder are: it is easy to crack or even fall off in the environment where the temperature difference between morning and evening changes greatly, and it has poor weather resistance and poor elasticity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An anti-crack elastic putty for external walls, made of the following raw materials in parts by weight: 45 parts of cement, 5 parts of coconut shell powder, 8 parts of medical stone powder, 6 parts of magnesite, 1 part of ash calcium powder, and modified biotite 10 parts of powder, 3 parts of modified fly ash, 15 parts of solid acrylic redispersible rubber powder, 0.2 parts of hydroxypropyl methylcellulose, 0.3 parts of water repellent, 2 parts of pineapple hemp fiber, 0.1 parts of carboxymethyl starch ether part, 0.5 part of tea saponin.

[0018] The modified biotite powder is mixed with biotite powder and N-methylformamide at a mass ratio of 1:6 at 60°C for 8 hours, filtered and separated, then vacuum-dried at 60°C for 10 hours, finally ground, and passed through 200°C. Mesh sieve to obtain modified biotite powder.

[0019] The modified fly ash is prepared by the following method: soak the fly ash with 10% hydrogen peroxide for 1 hour, wash with deionized water until...

Embodiment 2

[0025] An anti-crack elastic putty for external walls, made of the following raw materials in parts by weight: 50 parts of cement, 6 parts of coconut shell powder, 7 parts of medical stone powder, 7 parts of magnesite, 2 parts of ash calcium powder, and modified biotite 11 parts of powder, 4 parts of modified fly ash, 16 parts of solid acrylic redispersible rubber powder, 0.3 parts of hydroxypropyl methylcellulose, 0.4 parts of water repellent, 3 parts of pineapple hemp fiber, 0.2 parts of carboxymethyl starch ether part, 0.5 part of tea saponin.

[0026] The modified biotite powder is mixed with biotite powder and N-methylformamide at a mass ratio of 1:6 at 60°C for 8 hours, filtered and separated, then vacuum-dried at 60°C for 10 hours, finally ground, and passed through 200°C. Mesh sieve to obtain modified biotite powder.

[0027] The modified fly ash is prepared by the following method: soak the fly ash with 10% hydrogen peroxide for 1 hour, wash with deionized water unti...

Embodiment 3

[0033] An anti-crack elastic putty for external walls, made of the following raw materials in parts by weight: 60 parts of cement, 5 parts of coconut shell powder, 8 parts of medical stone powder, 8 parts of magnesite, 3 parts of ash calcium powder, and modified biotite 12 parts of powder, 5 parts of modified fly ash, 20 parts of solid acrylic acid redispersible rubber powder, 0.4 parts of hydroxypropyl methylcellulose, 0.5 parts of water repellent, 4 parts of pineapple hemp fiber, 0.3 parts of carboxymethyl starch ether part, 0.6 part of tea saponin.

[0034] The modified biotite powder is mixed with biotite powder and N-methylformamide at a mass ratio of 1:6 at 60°C for 8 hours, filtered and separated, then vacuum-dried at 60°C for 10 hours, finally ground, and passed through 200°C. Mesh sieve to obtain modified biotite powder.

[0035] The modified fly ash is prepared by the following method: soak the fly ash with 10% hydrogen peroxide for 1 hour, wash with deionized water...

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PUM

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Abstract

The invention discloses outer wall anti-cracking elastic putty and a preparation method thereof. The outer wall anti-cracking elastic putty is prepared from, by weight, 45-60 parts of cement, 5-10 parts of coconut shells, 5-8 parts of medical stone flour, 6-8 parts of magnesia, 1-3 parts of ash calcium powder, 10-12 parts of modified black mica powder, 3-5 parts of modified fly ash, 15-20 parts of solid acrylic acid dispersible adhesive powder, 0.2-0.4 part of hydroxypropyl methyl cellulose, 0.3-0.5 part of a water repellent, 2-4 parts of pineapple jute fiber, 0.1-0.3 part of carboxymethyl starch and 0.5-0.6 part of tea saponin. The outer wall anti-cracking elastic putty has the high bonding power for walls and coatings and is good in anti-cracking and crack-resisting effect, and good in weather fastness.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an anti-crack elastic putty for external walls and a preparation method thereof. Background technique [0002] The exterior wall putty powder is made of inorganic gelling material as the base material, and finely processed with bonding materials and other additives. Its outstanding features are high bonding strength, water resistance, alkali resistance and good construction performance. The existing exterior wall putty powder is generally composed of white cement, double fly powder, lime calcium powder, rubber powder and other raw materials. Among them, the rubber powder can improve the bonding performance and cohesion of the material, reduce the water absorption of the material and improve the water retention during use. Sexuality. The disadvantages of the existing putty powder are: it is easy to crack or even fall off in the environment where the temperature differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 储茂德
Owner 安庆市凯瑞建材有限公司
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