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Silane paste protection agent

A technology of protective agent and silane monomer, which is applied in the field of concrete protection, can solve the problems of low immersion depth, long silane molecular chain, breakage, etc., and achieve the effect of reducing the number of times of painting, increasing the penetration depth and prolonging the penetration time

Inactive Publication Date: 2016-12-21
CARBON COMPOSITESTIANJIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The silane pastes on the market mainly have the following deficiencies: 1. The silanes used in the silane paste impregnating agent are mainly silane oligomers and long-chain silane monomers. The relatively long carbon chain is easy to be oxidized and broken, which affects the performance of silane paste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A silane paste protective agent, consisting of the following components by weight: 90 parts of silane monomer, 3 parts of high-efficiency emulsifier, 10 parts of deionized water, 0.5 part of thickener, 0.5 part of antioxidant and 0.2 part of buffer solution, The silane monomer is one or more of isooctyltriethoxysilane, n-octyltriethoxysilane, isobutyltriethoxysilane and decyltriethoxysilane. The high-efficiency emulsifier is a mixture of silicon emulsifier and special isomerized alcohol polyoxyethylene ether, and the volume ratio of the two is 1:1.

[0016] Its manufacturing process includes the following steps:

[0017] S1: Mixing: Put the high-efficiency emulsifier, deionized water, thickener, antioxidant and buffer into the electromagnetic stirrer, stir at 600r / min for 10min, and the temperature is 15°C;

[0018] S2: Mixing: Add the silane monomer to the mixed liquid in step S1, stir at 800 r / min for 20 min, until it becomes white paste, and the finished product is ...

Embodiment 2

[0020] A silane paste protective agent, consisting of the following components by weight: 110 parts of silane monomer, 5 parts of high-efficiency emulsifier, 30 parts of deionized water, 1.5 parts of thickener, 1 part of antioxidant and 0.4 part of buffer solution, The silane monomer is one or more of isooctyltriethoxysilane, n-octyltriethoxysilane, isobutyltriethoxysilane and decyltriethoxysilane. The high-efficiency emulsifier is a mixture of silicon emulsifier and special isomerized alcohol polyoxyethylene ether, and the volume ratio of the two is 1:1.

[0021] Its manufacturing process includes the following steps:

[0022] S1: Mixing: Put the high-efficiency emulsifier, deionized water, thickener, antioxidant and buffer into the electromagnetic stirrer, stir at 800r / min for 30min, and the temperature is 25°C;

[0023] S2: Mixing: Add the silane monomer to the mixed liquid in step S1, stir for 40 min at 1200 r / min, until it becomes white paste, and the finished product is...

Embodiment 3

[0025] A silane paste protective agent, consisting of the following components by weight: 100 parts of silane monomer, 4 parts of high-efficiency emulsifier, 20 parts of deionized water, 1 part of thickener, 0.7 part of antioxidant and 0.3 part of buffer solution, The silane monomer is one or more of isooctyltriethoxysilane, n-octyltriethoxysilane, isobutyltriethoxysilane and decyltriethoxysilane. The high-efficiency emulsifier is a mixture of silicon emulsifier and special isomerized alcohol polyoxyethylene ether, and the volume ratio of the two is 1:1.

[0026] Its manufacturing process includes the following steps:

[0027] S1: Mixing: Put the high-efficiency emulsifier, deionized water, thickener, antioxidant and buffer into the electromagnetic stirrer, stir at 700r / min for 20min, and the temperature is 20°C;

[0028] S2: Mixing: Add the silane monomer to the mixed liquid in step S1, stir for 30 min at 1000 r / min, until it becomes white paste, and the finished product is ...

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Abstract

The invention discloses a silane paste protection agent. The silane paste protection agent is prepared from, by weight, 90-110 parts of silane monomers, 3-5 parts of an effective emulsifier, 10-30 parts of deionized water, 0.5-1.5 parts of a thickener, 0.5-1 part of an antioxidant and 0.2-0.4 part of a buffer solution. A preparing technology of the silane paste protection agent includes the first step of mixing and the second step of mixing. The silane paste protection agent overcomes the defects that a traditional concrete anti-corrosion coating is airtight, moisture in concrete can not volatilize easily, the coating structure is damaged, and the anti-corrosion performance is poor. Besides, compared with a liquid silane impregnation agent, the silane paste protection agent has the advantages that the silane paste protection agent has thixotropy and non-flowability, so that the number of painting times is reduced, the penetration time is prolonged, and the penetration depth is increased; a self-crosslinking reaction can happen, silane or siloxane in the product can be self-crosslinked with water under paste demulsification, and it is not required that concrete provides extra moisture for the reaction.

Description

technical field [0001] The invention relates to the technical field of concrete protection, in particular to a silane paste protective agent. Background technique [0002] There are many protection methods for concrete, and the protection methods currently used mainly include the following. 1. Control the water-cement ratio and improve the compactness of concrete. 2. Add appropriate amount of mineral admixture to improve the anti-permeability of concrete. 3. Add admixture, the right amount of admixture can effectively improve the concrete pore structure. 4. Adding fibers can effectively reduce the cracks caused by volume shrinkage in the early stage of hardening, improve the impermeability and frost resistance of concrete, and reduce concrete damage. At the same time, fibers can improve the toughness and crack resistance of concrete, and improve the interface bonding of concrete structures. 5. Use a protective layer for outer covering and waterproofing. The waterproof e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/64
CPCC04B41/64C04B41/4922C04B41/4896
Inventor 单书燕
Owner CARBON COMPOSITESTIANJIN CO LTD
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