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Preparation method and application of self-cleaning glass hydrophobic agent

A hydrophobic agent and self-cleaning technology, which is applied in the field of glass surface treatment, can solve the problems of blurred front and rear view mirrors of automobile windshields, side windshields, and poor light transmission, so as to maintain beautiful appearance, less adhesion, and quantification. Effects with low production requirements

Active Publication Date: 2019-04-26
深圳市吉鹏硅氟材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The surface of ordinary glass is a hydrophilic surface. When water droplets spread on the glass, the light transmission of the glass will deteriorate. The blurring of car windshields, side windshields, and front and rear view mirrors is an important cause of traffic accidents.

Method used

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  • Preparation method and application of self-cleaning glass hydrophobic agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A self-cleaning glass hydrophobic agent is prepared through the following steps:

[0027] S1, to prepare component A, weigh dimethylcyclosiloxane, phenyl-containing siloxane and silane coupling agent in proportion, mix and stir evenly, and heat to 80°C to obtain hot material; Under the condition that the stirring speed is 30~60rpm, add the basic catalyst to the hot material continuously within 3 hours, and obtain the ternary copolymerized polysiloxane through the polymerization reaction. After cooling to room temperature, add the surfactant, mix well and then add the solvent for Emulsify and filter to obtain component A;

[0028] Each substance and content in each raw material in component A are as shown in Table 1, and the unit of each component content is g;

[0029] Dimethylcyclosiloxane is octamethylcyclotetrasiloxane;

[0030] Phenyl-containing siloxanes include octaphenylcyclotetrasiloxane, tetramethyltetraphenylcyclotetrasiloxane, short-chain dimethyldiphenylsi...

Embodiment 2

[0041] A self-cleaning glass hydrophobic agent is prepared through the following steps:

[0042] S1, to prepare component A, weigh dimethylcyclosiloxane, phenylsiloxane and silane coupling agent in proportion, mix and stir evenly, and heat to 90°C to obtain hot material; Under the condition that the stirring speed is 60rpm, add the basic catalyst to the hot material continuously within 5h, and carry out the polymerization reaction to obtain the terpolymeric polysiloxane. After cooling to room temperature, add the surfactant, mix well and then add the solvent for emulsification , to obtain A component by filtration;

[0043] Each substance and content in each raw material in component A are as shown in Table 1, and the unit of each component content is g;

[0044] Dimethylcyclosiloxane includes octamethylcyclotetrasiloxane and dimethylcyclosiloxane in a weight ratio of 1:1;

[0045] Phenyl-containing siloxanes include octaphenylcyclotetrasiloxane, tetramethyltetraphenylcyclot...

Embodiment 3

[0056] A self-cleaning glass hydrophobic agent is prepared through the following steps:

[0057] S1, to prepare component A, weigh dimethylcyclosiloxane, phenylsiloxane and silane coupling agent in proportion, mix and stir evenly, and heat to 85°C to obtain hot material; Under the condition that the stirring speed is 45rpm, add the basic catalyst to the hot material continuously within 4 hours, and carry out the polymerization reaction to obtain the ternary copolymerized polysiloxane. After cooling to room temperature, add the surfactant, mix well and then add the solvent for emulsification , to obtain A component by filtration.

[0058] Each substance and content in each raw material in component A are as shown in Table 1, and the unit of each component content is g;

[0059] Dimethylcyclosiloxane includes octamethylcyclotetrasiloxane and dimethylcyclosiloxane in a weight ratio of 1:4;

[0060] Phenyl-containing siloxanes include octaphenylcyclotetrasiloxane, tetramethyltet...

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Abstract

The invention belongs to the technical field of glass surface treatment, and particularly relates to a preparation method and application of a self-cleaning glass hydrophobic agent. The preparation method of the self-cleaning glass hydrophobic agent comprise the following steps of S1, preparation of a component A: carrying out polymerization reaction on methylcyclosiloxane, methylphenylsiloxane and a silane coupling agent under certain conditions to obtain a terpolymer polysiloxane, reacting the terpolymer polysiloxane with a surfactant and a solvent, and then filtering to obtain the componentA; and S2, preparation of a component B: carrying out polymerization reaction on dimethylcyclosiloxane, methylphenylsiloxane and a silane coupling agent under certain conditions to obtain terpolymerpolysiloxane, reacting the terpolymer polysiloxane with a surfactant and a solvent, and then filtering to obtain the component B. The preparation method is simple, the quantitative production requirement is low, after a prepared product acts on the surface of the glass, water drops can be formed when water is sprayed to the surface of the glass, the contact angle of the water drops can reach 125 degrees, and the water drops can roll off automatically without leaving marks.

Description

technical field [0001] The invention belongs to the technical field of glass surface treatment, in particular to a preparation method and application of a self-cleaning glass hydrophobic agent. Background technique [0002] The surface of ordinary glass is a hydrophilic surface. When water droplets spread on the glass, the light transmission of the glass will deteriorate. The blurring of car windshields, side windshields, and front and rear view mirrors is an important cause of traffic accidents. In the case of rain or high humidity, attached droplets will form on the surface of the car glass and affect the line of sight. Contents of the invention [0003] In order to solve the above problems, the present invention provides a preparation method of a self-cleaning glass hydrophobic agent, the process is simple, and the quantitative production requirements are low. After the prepared product acts on the glass surface, water droplets can form water droplets on the glass surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34C08G77/04
CPCC03C17/007C03C17/009C03C17/34C08G77/04
Inventor 陈华龚家全杨帆杨开柱
Owner 深圳市吉鹏硅氟材料有限公司
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