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Hydrophilic member and method for producing same

A technology of hydrophilicity and components, applied in separation methods, chemical instruments and methods, catalyst activation/preparation, etc., can solve problems such as poor durability and fragile structure, and achieve the effect of improved durability

Inactive Publication Date: 2014-03-19
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the tungsten oxide thin film formed on a substrate such as glass as in Patent Document 1 has the following problems: it has a fragile structure and poor durability.

Method used

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  • Hydrophilic member and method for producing same
  • Hydrophilic member and method for producing same
  • Hydrophilic member and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0171] (1) First intermediate layer forming step

[0172] As a substrate, soda lime glass (green glass) (thickness: 2 mm) for automobile windshields was prepared. On this soda lime glass, SiO was formed as an intermediate layer by magnetron sputtering (device: SRV-4300 manufactured by Shinko Seiki Co., Ltd.) 2 Film (thickness: 50 nm). At this time, using SiO 2 The plate (disc) is used as the target, in vacuum, the distance between the substrate and the target is 100mm, and the pressure is 5×10 -4 Sputtering was carried out under the conditions of Pa, film formation rate of 3 nm / min, input power of 100 W, and substrate temperature of 25°C.

[0173] (2) Formation process of photocatalyst coating film

[0174] (a) Film formation of catalytic activity promoter (formation of catalytic activity promotion layer)

[0175] In the above SiO 2 On the film, a CuO film (thickness: 0.5 nm) was formed by continuous sputtering using a magnetron sputtering method (apparatus: Model SRV-43...

Embodiment 2

[0182] In addition to making SiO 2 A member for evaluation was obtained in the same manner as in Example 1 except that the thickness of the film was 20 nm.

Embodiment 3

[0184] In addition to making SiO 2 A member for evaluation was obtained in the same manner as in Example 1 except that the thickness of the film was 100 nm.

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Abstract

Provided is a means which is capable of improving the durability of a hydrophilic member that has a photocatalyst layer containing tungsten oxide. A hydrophilic member which comprises: a substrate; a first intermediate layer which is disposed on the substrate and contains a metal oxide that contains a group 4, 6, 13 or 14 element of the periodic table; and a photocatalyst layer which is disposed on the first intermediate layer and contains tungsten oxide.

Description

technical field [0001] The present invention relates to a hydrophilic member and its manufacturing method. More specifically, it relates to a hydrophilic member suitable for window materials, mirrors, and the like used in construction, industrial, and automotive applications, and a method for producing the same. Background technique [0002] In recent years, photocatalysts that absorb water and environmental pollutants in the air and decompose and remove these substances under the stimulation of sunlight and indoor light have attracted people's attention. Such photocatalysts are widely used, and are suitable for use in windows for automobiles, trains, airplanes, ships, and buildings, automobiles, bathrooms, mirrors for curved mirrors, optical lenses, and the like. [0003] For parts such as glass and mirrors that use photocatalysts, in addition to environmental purification functions, anti-fog and anti-fouling functions are also required in many cases. In particular, windo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J35/02B01J23/30B01J37/02B32B9/00B01J35/00
CPCB01J23/888B01J23/72B01J23/30B01J21/04B01J35/02B01J21/08B01J23/14B01J37/0244B01J37/02B01J35/004B32B9/00B01J21/063B01D2255/802B01D53/8668B01D53/8687B01D53/885B01D2255/20776B01D2257/70B01D2258/06B01D2259/4508B01D2259/4566B01D2259/4575B01D2259/4591B01D2259/802C23C14/0036C23C14/024C23C14/083C23C14/5806B01J35/39
Inventor 芜木智裕甲斐康朗野口雄司小川裕纯津岛健次
Owner NISSAN MOTOR CO LTD