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Silicone hydride cream-like substance with high solid content and method of manufacturing the same

A high solid content, silane paste technology, applied in the field of high solid content silane paste and its preparation, can solve the problems of poor permeability, poor surface film formation, poor durability, etc., and achieve strong operability , good permeability, convenient construction and transportation

Inactive Publication Date: 2009-02-18
武汉壁千韧硅涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation method is relatively complicated, and the obtained product is a macromolecule, which has poor permeability, poor film formation on the surface, and poor durability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The steps of the preparation method of the high solid content silane paste of the present invention are:

[0024] (1) According to the ratio given in claim 1, add the emulsifier to the siloxane monomer, stir while heating, heat to 50 ℃~100 ℃, disperse evenly, obtain oil phase long chain alkyl silane monomer system;

[0025] (2) According to the ratio given in claim 1, add deionized water at 20°C to 90°C to the oil phase long-chain alkylsilane monomer under the action of mechanical force, shear and emulsify, and disperse uniformly to obtain the water phase Long chain alkyl silane monomer system;

[0026] (3) When the system is cooled to a paste, the system changes from an emulsion to a white paste, and the characteristic temperature of the paste is 28°C-50°C.

[0027] In the preparation method of the high solid content silane paste, in step 1, the heating temperature of the oil phase process is 70°C-85°C.

[0028] In the preparation method of the high solid content si...

Embodiment 1

[0033] The octyltriethoxysilane coupling agent, 2.56 grams of sodium stearate and 2.44 grams of triethanolamine stearate, which account for a total amount of 75 grams (mass ratio, the same below), are placed in a 500mL large beaker and stirred. While heating, when the temperature rises to about 80°C, it is placed under a high-shear emulsifier to disperse evenly at a speed of 2500r / min, and then slowly add deionized water accounting for a total of 20 grams and a temperature of about 50°C; After that, continue to disperse at a speed of 2500r / min, and the paste can be formed when the system is cooled to 38°C.

Embodiment 2

[0035]The total amount of 74 grams of octyl triethoxysilane coupling agent, 0.4 grams of Tween-80 and Span-80, 1.6 grams of sodium stearate, 3.0 grams of glyceryl stearate was placed in a large 500mL beaker , heat it while stirring, and when the temperature rises to about 90°C, place it under a high-shear emulsifier to disperse it evenly at a speed of 2500r / min, and then slowly add deionized water that accounts for a total of 21 grams and is about 25°C. ; After adding, continue to disperse at a speed of 2500r / min, and the paste can be formed when the system is cooled to 40°C.

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Abstract

The invention discloses a high solid content silane paste and a preparation thereof, the components and the quality ratio comprise: the ratio of siloxane monomer, emulsifier and de-ionized water is 70 percent to 85 percent: 5 percent to 10 percent: 10 percent to 25percent, wherein, the siloxane monomer is a mixed system of long-chain alkyl siloxane of C3-C18 or alkyl silane coupling agent of C3-C18; the emulsifier is one or several a fluorine-containing emulsifier, a Tween series emulsifier, a Span series emulsifier and a stearic acid-type emulsifier. The preparation method takes the long-chain alkyl siloxane as the main monomer, is assisted with proper quantities of organic alkyl silane coupling agent containing a functional group, and adopts means of a special composite emulsion to prepare poly organic silane paste having high penetrability and high stability. The invention is used for surface conservation of concrete, and greatly enhances anti-erosion ability to seawater, rain water and acid rain in the atmosphere.

Description

technical field [0001] The invention relates to a high solid content silane paste and a preparation method thereof, in particular to a paste mainly used for the surface maintenance of concrete in ports, marine engineering, bridges, wharves, commercial buildings, highways and the like and a preparation method thereof. Background technique [0002] Organosilicon compounds have unique hydrophobicity and no obvious damage to water vapor permeability. In addition, organosilicon materials also have excellent weather resistance. This is mainly due to the strong resistance of silicone to the environment (such as heat, light, chemical corrosion, microorganisms, etc.). In addition, silicone materials can form stable covalent bonds with building materials such as concrete. [0003] The current silicone-based waterproof materials are mainly methyl silicate alkoxides and their modified products. Methyl silicates are cheap and easy to use; however, they can easily affect the appearance o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/46
CPCC04B41/009C04B41/4922
Inventor 吴小峰张群朝王德才
Owner 武汉壁千韧硅涂料有限公司
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