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A kind of preparation method of organosilicon building waterproofing agent

A building waterproofing and silicone technology, applied in the direction of coating, etc., can solve the problems of building material corrosion, high chloride ion content, and restrictions on widespread use, and achieve the effect of low corrosion

Active Publication Date: 2017-02-22
FOSHAN XINXIANGXING CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing methods for preparing organic silicon building waterproofing agents mainly use organic chlorosilane or organic silicon waste as the main raw material. These raw materials produce a large amount of harmful substances during the preparation process, and the chlorine ion content after the product is made is very high, which leads to corrosion of building materials. , shorten the life of the building
Thus restricting the widespread use in the construction industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Put 15 parts of ethanol, 15 parts of n-butanol, and 500 parts of deionized water into the reaction pot, start stirring, slowly add 130 parts of hydroxyl-terminated polydimethylsiloxane , and then slowly add 50 Parts of solid potassium hydroxide, the temperature will rise to 65°C, when the temperature stops rising, raise the temperature to 80°C, take a sample for four hours, the solid is completely dissolved, keep it for another hour, cool, and filter to get the silicone building waterproofing agent.

Embodiment 2

[0020] Put 15 parts of ethanol, 15 parts of n-butanol, and 500 parts of deionized water into the reaction pot, start stirring, and slowly add 130 parts of hydroxyl-terminated polydimethylsiloxane , and then slowly add 50 parts 1 part of solid potassium hydroxide, the temperature will rise to 65°C, when the temperature stops rising, raise the temperature to 80°C, take a sample for 8 hours, the solid matter is completely dissolved, keep it for another 1 hour, cool, and filter to get the silicone building waterproofing agent.

Embodiment 3

[0022] Put 10 parts of ethanol, 25 parts of n-butanol, and 500 parts of deionized water into the reaction pot, start stirring, and slowly add 130 parts of hydroxyl-terminated polydimethylsiloxane , and then slowly add 50 parts Parts of solid potassium hydroxide, the temperature will rise to 65°C, when the temperature stops rising, raise the temperature to 80°C, take a sample for 3 hours, the solid matter is completely dissolved, keep it for another 1 hour, cool, and filter to get the silicone building waterproofing agent.

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PUM

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Abstract

The invention discloses a preparing method of an organosilicon building waterproof agent. By adding mixed fatty alcohols, a caustic alkali and deionized water into a reaction pot, heating and degrading, organosilicon high-molecular polymer is turned into a water-soluble compound, thus facilitating using. The chlorine ion content of the organosilicon high-molecular polymer is very low and is lower than 10 ppm, so that the corrosion of the waterproof agent to building materials is very low. According to the method, the organosilicon high-molecular polymer is degraded to form a waterborne compound by a certain reaction temperature. According to requirements of different occasions, the waterproof agent is added into concrete according to different ratios, and a hydrophobic surface is formed on the surface after normal concrete process requirements. After the prepared waterproof agent is diluted, a hydrophobic layer is formed on the surface of a building and by spraying, coating and brushing.

Description

technical field [0001] The invention relates to a method for preparing an organosilicon building waterproofing agent by utilizing an organosilicon high molecular polymer, in particular to a preparation method of an organosilicon building waterproofing agent. Background technique [0002] The existing methods for preparing organic silicon building waterproofing agents mainly use organic chlorosilane or organic silicon waste as the main raw material. These raw materials produce a large amount of harmful substances during the preparation process, and the chlorine ion content after the product is made is very high, which leads to corrosion of building materials. , to shorten the life of the building. Thereby restricting the extensive use in construction industry. Contents of the invention [0003] The purpose of the present invention is to overcome the defects in the production process of the organic silicon building waterproofing agent, and to prepare the organic silicon bui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/06C09D183/04C09D183/07C09D7/12
Inventor 潘科学
Owner FOSHAN XINXIANGXING CHEM