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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: 2021-09-17
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

[0030] Decyl triethoxy silane, silane oligomer, γ-aminopropyl trimethoxy silane, polyoxypropylene glyceryl ether defoamer, antioxidant (phenol hindered phenol antioxidant 1010 and phosphite according to mass ratio 1:1 compound) and nitrite preservatives were weighed in a mass ratio of 60:32:8:0.1:0.1:0.2. First, pour decyltriethoxysilane, silane oligomer and γ-aminopropyltriethoxysilane into a stirring vessel, mix and stir with an electric mixer, and then pour the mixture of defoamer, antioxidant and preservative into The silane waterproof material can be obtained by continuing to stir.

[0031] The properties of specific silane waterproof materials are as follows:

[0032]

[0033]

Embodiment 2

[0035] Dodecyltriethoxysilane, silane oligomer, γ-aminopropyltriethoxysilane, polyoxyethylene polyoxypropylene pentaerythritol ether defoamer, antioxidant (phenol hindered phenol antioxidant 1010 and The phosphite was compounded in a mass ratio of 1:1), and the nitrite preservative was weighed in a mass ratio of 60:30:10:0.1:0.1:0.2. First, pour dodecyltriethoxysilane, silane oligomer and γ-aminopropyltriethoxysilane into a stirring vessel, mix and stir in an electric mixer, then add antifoaming agent, antioxidant and preservative The mixture is poured and stirred continuously to obtain the silane waterproof material.

[0036] The properties of specific silane waterproof materials are as follows:

[0037]

Embodiment 3

[0039] Cetyltriethoxysilane, silane oligomers, γ-aminopropyltrimethoxysilane, polyoxyethylene polyoxypropylene pentaerythritol ether defoamer, antioxidants (phenol hindered phenol antioxidant 1010 and Phosphate ester was weighed according to the mass ratio of 1:1) and the modified silicone emulsion preservative was weighed according to the mass ratio of 70:20:10:0.1:0.1:0.2. First, pour dodecyltriethoxysilane, silane oligomer and γ-aminopropyltrimethoxysilane into a stirring vessel, mix and stir with an electric mixer, and then mix the defoamer, antioxidant and preservative mixture Pour in and continue stirring to obtain silane waterproof material.

[0040] The properties of specific silane waterproof materials are as follows:

[0041]

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Abstract

The invention relates to a silane waterproof material for concrete protection. The material comprises the following specific components: chain alkyl silane, a silane oligomer, an amino silane coupling agent, a defoaming agent, an antioxidant and a preservative. When the silane oligomer is in contact with the concrete, an S< i-O-C > bond of the concrete is easily subjected to hydrolysis chain scission due to the alkaline environment and internal moisture of the concrete, and a silane compound with a low polymerization degree is formed, so a traditional volatile non-environment-friendly solvent is replaced, the ultra-low surface energy, high interface wettability and migration anti-corrosion characteristics of the silane oligomer are realized, and the problems that a traditional silane waterproof material is not environmentally friendly, high in volatilization rate, poor in permeability, insufficient in durability and the like are solved.

Description

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

Claims

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Application Information

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Patent Type & Authority Applications(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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