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Alkali-proof putty for exterior wall

A putty and anti-alkali technology, applied in the field of putty powder, can solve the problems of inapplicability and achieve good hydrophobicity and barrier migration

Inactive Publication Date: 2021-03-26
温州明远新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alkali-resistant putty means that the raw materials contain anti-alkali agents, and most of the anti-alkali agents are liquid, such as acrylic emulsions, silicone emulsions, etc., which are not suitable for dry mixing systems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0041] The preparation process of organosilicon is as follows: First, mix 15 parts of phenyltrimethoxysilane, 20 parts of isopropanol and 5 parts of diethylamine evenly, raise the temperature to 85°C and protect it with nitrogen, then add 0.04 parts of tetra-n-butoxytitanium , stirred and reacted for 4 hours, and finally vacuum removed to remove low boilers at a temperature of 75°C and a vacuum of 120kPa to obtain organosilicon.

preparation example 2

[0043] The preparation process of organosilicon is as follows: First, mix 20 parts of phenyltrimethoxysilane, 30 parts of isopropanol and 8 parts of diethylamine evenly, raise the temperature to 95°C and protect it with nitrogen, then add 0.08 parts of tetra-n-butoxytitanium , stirred and reacted for 6h, and finally vacuum removed to remove low boilers at a temperature of 75°C and a vacuum of 120kPa to obtain organosilicon.

preparation example 3

[0045] The preparation process of organosilicon is as follows: First, mix 18 parts of phenyltrimethoxysilane, 25 parts of isopropanol and 6 parts of diethylamine evenly, raise the temperature to 90°C and protect it with nitrogen, then add 0.06 parts of tetra-n-butoxytitanium , stirred and reacted for 5 hours, and finally vacuum removed to remove low boilers at a temperature of 75°C and a vacuum of 120kPa to obtain organosilicon.

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PUM

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Abstract

The invention relates to the field of putty powder, and particularly discloses exterior wall alkali-proof putty which comprises the following components in parts by weight: 20-40 parts of cement, 60-80 parts of heavy calcium carbonate, 0.3-0.6 part of cellulose, 0.3-0.6 part of starch ether, 0.1-0.3 part of latex powder, and 0.3-0.8 part of an alkali resistant agent, the preparation process of theanti-alkali agent comprises the following steps: mixing the following components in parts by weight: 40-50 parts of organic silicon, 10-15 parts of inorganic filler and 200-300 parts of polyvinyl alcohol aqueous solution, and stirring for 20-30 minutes at the rotating speed of 600-1000r / min to obtain a feed liquid, carrying out spray drying treatment on the feed liquid, crushing and sieving to obtain the alkali-resistant agent. All the components of the alkali-proof putty are powder, the alkali-proof putty is suitable for a dry-mixed system, and the alkali-proof putty can be directly brushedafter being uniformly stirred after being added with mixing water during construction application.

Description

technical field [0001] The application relates to the field of putty powder, more specifically, it relates to an alkali-resistant putty for exterior walls. Background technique [0002] External wall putty is a supporting material in the process of architectural coating exterior wall decoration. As a base treatment material, the main function of putty is to level the wall. Putty powder mainly includes three main parts, namely base material, filler and additives. Common base materials include cement, lime, gypsum and other inorganic materials. Common fillers include quartz powder, light calcium carbonate, talcum powder, etc. Common Additives include thickeners, anti-fungal agents, anti-aging agents, etc. [0003] Dry-mixed putty powder means that each component is powder or granular, dry-mixed into shape, transported to the construction site in the form of bags or bulk, and can be applied after mixing with water. [0004] Since the efflorescence on the wall will cause probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 赵留臣张光森史科为鲍加赵邹启权
Owner 温州明远新型建材有限公司
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