Silane waterproof material for concrete protection and preparation method thereof

A waterproof material and concrete technology, applied in the direction of coating, etc., can solve the problems of low surface energy interface wettability, insufficient durability, high volatilization rate, etc., and achieve the effects of long protection life, low construction difficulty coefficient and low cost

Active Publication Date: 2022-03-01
CNBM ZHONGYAN TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use silane oligomers to replace traditional volatile and non-environmentally friendly solvents, and use alkanyl silanes, aminosilane coupling agents, defoamers, antioxidants and preservatives to achieve ultra-low surface energy and high interfacial infiltration Anti-corrosion and anti-migration properties, which solve the problems of high volatilization rate, poor permeability and insufficient durability of traditional silane waterproof materials

Method used

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  • Silane waterproof material for concrete protection and preparation method thereof
  • Silane waterproof material for concrete protection and preparation method thereof
  • Silane waterproof material for concrete protection and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Decyltriethoxysilane, silane oligomer, γ-aminopropyltrimethoxysilane, polyoxypropylene glyceryl ether defoamer, antioxidant (phenol hindered phenolic antioxidant 1010 and phosphite according to mass ratio 1:1 composite) and nitrite preservatives are weighed according to the mass ratio of 60:32:8:0.1:0.1:0.2. First, pour decyltriethoxysilane, silane oligomers and γ-aminopropyltriethoxysilane into a stirring container, mix and stir in an electric mixer, and then pour the mixture of defoamer, antioxidant and preservative Add and continue to stir to obtain a silane waterproof material.

[0030] The properties of specific silane waterproof materials are as follows:

[0031]

[0032]

Embodiment 2

[0034] Dodecyltriethoxysilane, silane oligomer, γ-aminopropyltriethoxysilane, polyoxyethylene polyoxypropylene pentaerythritol ether defoamer, antioxidant (phenol hindered phenolic antioxidant 1010 and The phosphite is compounded according to the mass ratio of 1:1), and the nitrite preservative is weighed according to the mass ratio of 60:30:10:0.1:0.1:0.2. First, pour dodecyltriethoxysilane, silane oligomers and γ-aminopropyltriethoxysilane into a stirring container, mix and stir in an electric mixer, and then add defoamer, antioxidant and preservative The mixture is poured into and continuously stirred to obtain a silane waterproof material.

[0035] The properties of specific silane waterproof materials are as follows:

[0036]

Embodiment 3

[0038] Hexadecyltriethoxysilane, silane oligomer, γ-aminopropyltrimethoxysilane, polyoxyethylene polyoxypropylene pentaerythritol ether defoamer, antioxidant (phenol hindered phenolic antioxidant 1010 and sub The phosphate ester is compounded according to the mass ratio of 1:1) and the modified silicone emulsion preservative is weighed according to the mass ratio of 70:20:10:0.1:0.1:0.2. First pour dodecyltriethoxysilane, silane oligomers and γ-aminopropyltrimethoxysilane into the mixing container, mix and stir in an electric mixer, and then add the defoamer, antioxidant and preservative mixture Pour in and continue to stir to obtain a silane waterproof material.

[0039] The properties of specific silane waterproof materials are as follows:

[0040]

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Abstract

The invention relates to a silane waterproof material for concrete protection. The specific components of the material are as follows: chain alkyl silane, silane oligomer, amino silane coupling agent, defoamer, antioxidant, antiseptic; wherein, silane is low When the polymer comes into contact with concrete, the alkaline environment of the concrete itself and the internal moisture will easily lead to the hydrolysis of its Si-O-C bond and chain scission, forming a silane compound with a low degree of polymerization, so as to replace the traditional volatile, non-environmental protection Non-toxic solvents, realize its ultra-low surface energy, high interface wettability and migration anti-corrosion properties, solve the problems of traditional silane waterproof materials such as non-environmental protection, high volatility, poor permeability, and insufficient durability.

Description

technical field [0001] The invention relates to the technical field of concrete materials, in particular to a silane waterproof material for concrete protection and a preparation method thereof. Background technique [0002] As a porous material, concrete has a certain degree of permeability. Under the action of harmful ions such as carbon dioxide, water, chloride ions, and sulfates in the air, concrete will experience obvious performance degradation, such as sanding, salt freezing, and falling off. These problems can seriously affect its durability and service life. Especially for some reinforced concrete, due to the hydrophilicity of concrete, steel bars will gradually become blunt and corroded under the combined action of oxygen and moisture for a long time. The structural instability poses a major threat to its safety. [0003] As a new type of hydrophobic and breathable material, silane waterproof material has been rapidly developed in the field of concrete protection...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/00C08G77/26C09D183/08C04B41/64C04B41/63C04B41/62
CPCC09D4/00C08G77/26C09D183/08C04B41/64C04B41/63C04B41/62C04B41/5009C04B41/009C04B41/495C04B41/4922C04B41/4944C04B41/4896C04B41/46C04B28/00
Inventor 朱玉雪裴须强王健张群朝力乙鹏马强尹润平任硕
Owner CNBM ZHONGYAN TECH
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