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A kind of preparation method of titanium dioxide film that does not crack under heat

A technology of titanium dioxide and film layer, which is applied in the field of preparation of titanium dioxide film layer, can solve the problems of unstable drying performance, harsh experimental conditions for forming titanium dioxide film layer, easy cracking, etc., and achieve simple and easy preparation process, stable performance at room temperature and high temperature , the effect of stable performance

Active Publication Date: 2018-06-26
荣宝雨新材料科技(宁波)有限公司
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the defects in the prior art that the experimental conditions for the formation of the titanium dioxide film layer are harsh, and the obtained titanium dioxide film layer is naturally dried in the air or under heating conditions, the drying performance is unstable and easy to crack, etc., the present invention provides a titanium dioxide film that does not crack when heated. The preparation method of the film layer

Method used

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  • A kind of preparation method of titanium dioxide film that does not crack under heat
  • A kind of preparation method of titanium dioxide film that does not crack under heat
  • A kind of preparation method of titanium dioxide film that does not crack under heat

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Embodiment 1

[0021] 1. Preparatory work: take the beaker, glass rod, and measuring cylinder, and dry them in an oven; soak the stirring magnet in alcohol for cleaning; soak the clean glass slices in hydrofluoric acid for 4 minutes, take them out and rinse them with deionized water, and set aside.

[0022] 2. Preparation of Sol-Gel TiO

[0023] Take 2 beakers and add 10.00mL of ethanol respectively, labeled A and B, add 1.00mL of acetic acid and 1.50mL of distilled water into beaker A with a rubber dropper, and then stir for 10 minutes at a stirring speed of 3900r / min ;Add 4.50mL n-tetrabutyl titanate to the B beaker, and then stir for 9-11 minutes at a stirring speed of 3900r / min; Add the solution in the B beaker to the A beaker drop by drop at a rate of 3 drops / second , After the dropwise addition was completed, stir with magnetic force at room temperature for 30 minutes to form a light blue solution, and let it stand for 24 hours.

[0024] 3. Hydrothermal synthesis treatment

[0025] D...

Embodiment 2

[0033] It is basically the same as that of Example 1, except that the film is formed on the surface of the fluorescent powder, and the obtained film layer is uniform without cracking.

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Abstract

The invention discloses a preparation method of a titanium dioxide film layer without cracking due to heating. The preparation method comprises the following sequential steps: 1), preparing sol-gel titanium dioxide; 2) performing hydro-thermal synthesis; and 3) performing film forming. According to the preparation method of the titanium dioxide film layer without cracking due to heating, disclosed by the invention, a film layer with stable normal temperature and high temperature performances, uniformly and no cracking can be formed on the surfaces of fluorescent powder, glass and the like, and the preparation process is simple and feasible.

Description

technical field [0001] The invention relates to a method for preparing a titanium dioxide film that does not crack when heated, and belongs to the technical field of surface film preparation. Background technique [0002] The coating method is used to form a layer of transparent conductive material on the surface of phosphor particles, which can not only improve the conductivity, relieve the current saturation effect, but also serve as a protective layer to improve the anti-deterioration performance. There is very little research work on this aspect at home and abroad. In 2005, for EL devices, Sang-Do Han et al. used tetraisopropyl titanate as the precursor to use sol-gel method and heat treatment in nitrogen to coat TiO on the surface of ZnS:Cu,Cl. 2 , studied the relationship between photoluminescence and electroluminescence properties and experimental conditions. In 2007, Lihong Xue et al. used the sol-gel method involving the hydrolytic polymerization process of butyl ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/02C03C17/23
CPCC03C17/23C03C2217/212C09K11/025
Inventor 郭萍朱宪忠曾明敏张彦娜
Owner 荣宝雨新材料科技(宁波)有限公司
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