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Preparation method for concrete silane paste waterproofing agent

A technology of waterproofing agent and concrete, which is applied in the field of preparation of concrete silane waterproofing agent, which can solve the problems of coating failure, surface coating damage, and inability to guarantee the air permeability of concrete materials, etc., and achieves small volatilization, increased penetration time, and good waterproof effect Effect

Inactive Publication Date: 2016-12-07
无锡鸿孚硅业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a concrete silane paste waterproofing agent in order to solve the current technical problems that the surface coating will be damaged when the moisture inside the concrete surface protection coating is discharged, resulting in coating failure, and the air permeability of the concrete material itself cannot be guaranteed. Preparation

Method used

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  • Preparation method for concrete silane paste waterproofing agent
  • Preparation method for concrete silane paste waterproofing agent
  • Preparation method for concrete silane paste waterproofing agent

Examples

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specific Embodiment approach 1

[0025] Embodiment 1: This embodiment is a method for preparing a concrete silane paste waterproofing agent, which is specifically carried out according to the following steps:

[0026] Add deionized water and compound emulsifier into the three-necked bottle, stir at a speed of 400rpm and a temperature of 60°C to 80°C until the compound emulsifier is completely dissolved, then add amino silicone oil and triethylamine, and add in four times Silane monomer, then stirred at 60°C-80°C for 12h-16h, naturally cooled to room temperature, added phosphoric acid until the pH was 7-9, added stabilizer and bactericide, and used a high-speed emulsifier at a speed of 3000rpm Emulsified under the condition of 0.5h~1h, obtain concrete silane paste waterproofing agent; The mass ratio of described composite emulsifier and deionized water is 1:(8~9); The quality of described amino silicone oil and composite emulsifier Ratio is 1:3; The mass ratio of described triethylamine and composite emulsifie...

specific Embodiment approach 2

[0029] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the composite emulsifier is made of stearylamine polyoxyethylene ether, isotridecanyl polyoxyethylene ether and sodium laurylsulfonate The three are of equal quality. Others are the same as the first embodiment.

specific Embodiment approach 3

[0030] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the silane monomer is one or a mixture of n-octyltriethoxysilane and propyltriethoxysilane ; When the silane monomer is the mixture of n-octyltriethoxysilane and propyltriethoxysilane, the mass ratio of propyltriethoxysilane and n-octyltriethoxysilane is (0.15 ~ 1): 1. Others are the same as the first embodiment.

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Abstract

The invention provides a preparation method for a concrete silane paste waterproofing agent, and relates to the preparation method for a concrete silane waterproofing agent. The invention aims to solve the technical problems of coating failure due to capability of breaking surface coating during discharging of internal water of a protective coating on the surface of concrete, and incapability of guaranteeing self permeability of a concrete material in the prior art. The preparation method provided by the invention comprises the following steps: subjecting deionized water and a compound emulsifier to stirring until the compound emulsifier is completely dissolved, then adding amino silicon oil and triethylamine, adding a silane monomer, then carrying out stirring, carrying out natural cooling to room temperature, adding phosphoric acid until the mixture is neutral, adding a stabilizing agent and a sterilizing agent, and carrying out emulsification with a high-speed emulsifying machine. The preparation method provided by the invention uses water as a solvent, does not use a volatile solvent, and is free of harm to the environment and human; and compared with a pure silane monomer, the waterproofing agent has the advantages of little volatilization, high utilization rate, large penetration depth, simple process and good waterproof effect. The waterproofing agent provided by the invention has good stability, and has uniform color, no purity, no stratification, no floating oil and no obvious precipitate after standing for 4 months.

Description

technical field [0001] The invention relates to a preparation method of a concrete silane waterproofing agent. Background technique [0002] Concrete is the most widely used building material in civil engineering today, but many concrete materials today fail prematurely due to various reasons, some due to improper structural design, but most of them are due to insufficient durability and corrosion of the structure. , water plays a very important role in the corrosion process, especially the concrete materials in coastal areas are eroded due to the humid moisture in the sea and air, and the chloride salts rich in sea water invade the interior of the concrete structure, cause it to fail due to corrosion. [0003] Traditional concrete surface protective coatings, such as asphalt, polyurethane, acrylic resin, etc., are modeling coatings, which block the pores of concrete by covering the concrete surface to prevent the intrusion of external moisture. However, the biggest disadv...

Claims

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Application Information

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IPC IPC(8): C04B24/42C04B103/65
CPCC04B40/0039C04B2103/65C04B24/32C04B24/16C04B24/42C04B24/121C04B22/165C04B2103/0068C04B24/2623
Inventor 胡成发欧旸杨春晖
Owner 无锡鸿孚硅业科技有限公司
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