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Preparation method of titanium dioxide-modified sol in polymer system

A technology of titanium dioxide and polymer, applied in the field of preparation of modified titanium dioxide sol in polymer system, can solve the problems of film formation, titanium dioxide dispersion and the like

Inactive Publication Date: 2013-07-24
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a method for preparing modified titanium dioxide sol in a polymer system, aiming at solving the problems of titanium dioxide dispersion and film formation

Method used

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  • Preparation method of titanium dioxide-modified sol in polymer system

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specific Embodiment 1

[0019] Add 10ml of isopropyl titanate to 50ml of absolute ethanol, then add 0.5ml of concentrated sulfuric acid and 0.2g of citric acid, and stir the solution at 25°C; add 8ml of deionized water and 15ml of absolute ethanol while stirring the solution; by adding 0.3 g polyethylene glycol to obtain a uniformly dispersed liquid; finally, after heating and stirring at 150°C, a uniformly dispersed sol solution was obtained.

specific Embodiment 2

[0020] Add 10ml of isopropyl titanate to 45ml of anhydrous n-propanol, then add 0.5ml of concentrated sulfuric acid and 0.1g of salicylic acid, and stir the solution at 25°C; add 10ml of deionized water and 20ml of anhydrous n-propanol while stirring solution; by adding 0.3g of polyethylene glycol to obtain a uniformly dispersed liquid; finally heated and stirred at 225°C to obtain a uniformly dispersed sol solution.

specific Embodiment 3

[0021] Add 10ml of butyl titanate to 45ml of anhydrous n-propanol, then add 0.5ml of concentrated sulfuric acid and 0.1g of salicylic acid, and stir the solution at 25°C; add 5ml of deionized water and 20ml of anhydrous n-propanol while stirring the solution ; Obtain a uniformly dispersed liquid by adding 0.3g of polypropylene glycol; finally obtain a uniformly dispersed sol solution after heating and stirring at 120°C.

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Abstract

The invention discloses a preparation method of titanium dioxide-modified sol in a polymer system. The preparation method comprises the following steps of: 1, adding an organic titanium compound to alcohol, adding inorganic acid and organic acid additives and stirring the solution at 5-30 DEG C; 2, adding deionized water and alcohol and stirring the solution at the same time; 3, adding a modifier to obtain uniformly-dispersed liquid; and 4, finally, heating and stirring at 5-500 DEG C to obtain a sol solution. Nanoscale titanium dioxide particles are dispersed in the sol disclosed by the invention, so that the sol is hydrophilic and watersoluble; and the sol solution is capable of forming a film at normal temperature and has a visible light photocatalytic effect.

Description

technical field [0001] The invention belongs to the technical field of titanium dioxide application, and in particular relates to a method for preparing a modified titanium dioxide sol in a polymer system. Background technique [0002] Titanium dioxide has good physical and chemical properties and is used in various fields. However, the problems of dispersion and film formation have always been difficult to apply. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a method for preparing a modified titanium dioxide sol in a polymer system, aiming at solving the problems of titanium dioxide dispersion and film formation. [0004] The embodiment of the present invention is achieved in this way, a method for preparing a modified titanium dioxide sol in a polymer system, the preparation method comprising the following steps: [0005] Step 1. Add organic titanium compound to alcohol, then add inorganic acid and organic acid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38B01J35/12C02F1/30
Inventor 王剑峰王剑平卫冬燕董贺新张亚非韩丽张守恒赵金海张忠坤郭国伟王达菲朱新宾刘树建
Owner ZHENGZHOU UNIV
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