Method for preparing silicon-titanium micro-coarse structured hydrophilic film

A rough-structured, hydrophilic technology, used in devices that apply liquid to surfaces, special surfaces, coatings, etc., to solve problems such as loss of hydrophilicity, and achieve the effect of improving stability and good wear resistance

Inactive Publication Date: 2006-07-19
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

TiO 2 The limitation of hydrophilic film is that its hydrophilicity comes from photoexcitation, and when the film loses light exposure, it will slowly lose hydrophilicity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention is further described by examples below.

[0022] The present invention prepares the silicon-titanium micro-rough structure hydrophilic film in the embodiment that the operating steps are as follows:

[0023] (1) Add at least one of titanium tetrachloride, titanium sulfate or butyl titanate into the alcohol solvent of 1 to 5 times (m / m) under stirring conditions, and adjust the pH value to 2 to 5 with acid to obtain Primary titanium sol;

[0024] (2) Under stirring conditions, drop deionized water [the amount is 0.1 to 1 times (m / m) of the organosilane] and a small amount of acid [the amount is about 0.001 times (m / m) of the organosilane] into the organosilane The mixed solution, and then add acid dropwise to adjust the pH value to 2-5 to obtain an organosilicon sol with a molecular weight of 1000-5000;

[0025] (3) mixing the aforementioned primary titanium sol and organosilicon sol with the same pH value in a ratio (m / m) of 1: 0.1 to 2 to obtain...

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Abstract

The related preparation method for silatitan hydrophilic film with micro coarse structure comprises: (1) stirring and adding at least one of TiCl4, Ti(SO4)2 or butyl titanate into the alcohol solution to obtain the initial titanium solution; (2) stirring and dripping the mixture of deionized water and acid into organic silicane to obtain organic silica sol; (3) mixing former products for composite sol; (4) forming film on substrate surface, then thermal treating. This product has strong and persistent hydrophilicity on light lumination and well wearing resistance for wide application.

Description

technical field [0001] The invention relates to a method for preparing a film, more specifically, the invention relates to a method for preparing a silicon-titanium micro-rough structure hydrophilic film. Background technique [0002] In rainy or humid weather, especially in winter and late autumn and early spring, fog droplets will form on glass and plastics such as building windows, car windshields, glasses, and bathrooms. These transparent materials cause water to bead up because the surface is not hydrophilic. Fogging on the surface of glass or plastic can bring inconvenience to people's life at least, such as in the cold winter, the spectacle lenses will be fogged when entering the room from the outdoors, which will affect people's vision; Fogging on the mirror or windshield affects vision. [0003] The hydrophilized surface can make the water droplets or mist beads that touch the surface spread out and spread into a transparent water film, thereby eliminating the imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00B05D5/04
Inventor 杨辉高基伟申乾宏
Owner ZHEJIANG UNIV
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