JP2008307526A5

JP2008307526A5 -

Info

Publication number: JP2008307526A5
Application number: JP2008088790A
Authority: JP
Filing date: 2008-03-28
Publication date: 2009-02-12

Description

すなわち、本発明による光触媒塗装体は、
基材と、該基材上に設けられる光触媒層とを備えた、光触媒塗装体であって、
前記光触媒層が、
１質量部以上２０質量部未満の光触媒粒子と、
７０質量部を超え９９質量部以下の無機酸化物粒子と、
シリカ換算で０質量部以上１０質量部未満の加水分解性シリコーンの乾燥物と、
を、前記光触媒粒子、前記無機酸化物粒子および前記加水分解性シリコーンのシリカ換算量の合計量が１００質量部となるように含み、さらに銅元素および銀元素を含んでなるものである。 That is, the photocatalyst-coated body according to the present invention is
A photocatalyst-coated body comprising a substrate and a photocatalyst layer provided on the substrate,
The photocatalytic layer is
1 to 20 parts by mass of photocatalyst particles,
Inorganic oxide particles exceeding 70 parts by mass and 99 parts by mass or less;
A hydrolyzable silicone dry matter having a weight of 0 to less than 10 parts by weight in terms of silica;
In such a manner that the total amount of silica equivalents of the photocatalyst particles, the inorganic oxide particles, and the hydrolyzable silicone is 100 parts by mass, and further contains a copper element and a silver element.

また、本発明による光触媒コーティング液は、上記光触媒塗装体の製造に用いられる光触媒コーティング液であって、溶媒中に、
１質量部以上２０質量部未満の光触媒粒子と、
７０質量部を超え９９質量部以下の無機酸化物粒子と、
シリカ換算で０質量部以上１０質量部未満の加水分解性シリコーンと、
を、前記光触媒粒子、前記無機酸化物粒子および前記加水分解性シリコーンのシリカ換算量の合計量が１００質量部となるように含み、さらに銅元素および銀元素を含んでなるものである。 Moreover, the photocatalyst coating liquid according to the present invention is a photocatalyst coating liquid used in the production of the photocatalyst-coated body.
1 to 20 parts by mass of photocatalyst particles,
Inorganic oxide particles exceeding 70 parts by mass and 99 parts by mass or less;
Hydrolyzable silicone of 0 parts by weight or more and less than 10 parts by weight in terms of silica;
In such a manner that the total amount of silica equivalents of the photocatalyst particles, the inorganic oxide particles, and the hydrolyzable silicone is 100 parts by mass, and further contains a copper element and a silver element.

光触媒層およびそのための光触媒コーティング液
本発明の光触媒層は、１質量部以上２０質量部未満の光触媒粒子と、７０質量部を超え９９質量部以下の無機酸化物粒子と、銅元素と、銀元素と、シリカ換算で０質量部以上１０質量部未満の加水分解性シリコーンの乾燥物とを、光触媒粒子、無機酸化物粒子、および加水分解性シリコーンのシリカ換算量の合計量が１００質量部となるように含んでなる。そして、この光触媒層は光触媒粒子、無機酸化物粒子、および加水分解性シリコーンが上記質量比率で溶媒中に分散されてなる光触媒コーティング液を基材上に塗布することによって形成されることができる。

Photocatalyst layer and photocatalyst coating liquid therefor The photocatalyst layer of the present invention comprises 1 to 20 parts by mass of photocatalyst particles, 70 to 99 parts by mass of inorganic oxide particles, copper element, and silver element And 0 to 10 parts by mass of hydrolyzable silicone dry matter in terms of silica, the total amount of photocatalyst particles, inorganic oxide particles, and hydrolyzable silicone in terms of silica is 100 parts by mass. As including. And this photocatalyst layer can be formed by apply | coating the photocatalyst coating liquid formed by disperse | distributing a photocatalyst particle, an inorganic oxide particle, and a hydrolyzable silicone in the said mass ratio in a solvent on a base material.

Claims

A photocatalyst-coated body comprising a substrate and a photocatalyst layer provided on the substrate,
The photocatalytic layer is
1 to 20 parts by mass of photocatalyst particles,
Inorganic oxide particles exceeding 70 parts by mass and 99 parts by mass or less;
The total amount of silica-converted amounts of the photocatalyst particles, the inorganic oxide particles, and the hydrolyzable silicone is 100 parts by mass with respect to 0 to 10 parts by mass of the hydrolyzable silicone dry matter in terms of silica. A photocatalyst-coated body comprising a copper element and a silver element.

The photocatalyst coating body of Claim 1 in which the said photocatalyst layer has a film thickness of 0.5 micrometer or more and 3.0 micrometers or less.

The surfactant is contained in an amount of 0 to less than 10 parts by mass with respect to 100 parts by mass of the total amount of the photocatalyst particles, the inorganic oxide particles , and the hydrolyzable silicone in terms of silica. The photocatalyst coating body of description.

The photocatalyst coating body as described in any one of Claims 1-3 in which the said photocatalyst layer contains the said photocatalyst particle 5-15 mass parts.

The photocatalyst coating body as described in any one of Claims 1-4 whose said photocatalyst particle is a titanium oxide particle.

The photocatalyst coating body as described in any one of Claims 1-5 whose said inorganic oxide particle is a silica particle.

The inorganic oxide has a number average particle size of more than 5 nm and less than 40 nm calculated by measuring the length of any 100 particles entering a 200,000-fold field of view with a scanning electron microscope. Item 7. The photocatalyst-coated body according to any one of items 1 to 6.

The photocatalyst coating body as described in any one of Claims 1-7 whose said base material is a base material in which the surface was formed with the organic material at least.

The photocatalyst-coated body according to claim 8, wherein the photocatalyst layer is directly applied onto the substrate.

The photocatalyst coating body as described in any one of Claims 1-9 used as an exterior material.

It is a photocatalyst coating liquid used for manufacture of the photocatalyst coating body as described in any one of Claims 1-10,
A solvent ,
1 to 20 parts by mass of photocatalyst particles,
Inorganic oxide particles exceeding 70 parts by mass and 99 parts by mass or less;
Hydrolyzable silicone of 0 parts by weight or more and less than 10 parts by weight in terms of silica;
The photocatalyst coating liquid which contains copper element and silver element so that the total amount of the silica conversion amount of the said photocatalyst particle, the said inorganic oxide particle, and the said hydrolysable silicone may be 100 mass parts.

The surfactant is contained in an amount of 0 part by mass or more and less than 10 parts by mass with respect to 100 parts by mass of the total amount of silica equivalents of the photocatalyst particles, the inorganic oxide particles, and the hydrolyzable silicone. Photocatalyst coating solution.

The photocatalyst coating liquid according to claim 11 or 12, wherein the photocatalyst layer contains 5 parts by mass or more and 15 parts by mass or less of the photocatalyst particles.

The photocatalyst coating liquid as described in any one of Claims 11-13 whose said photocatalyst particle is a titanium oxide particle.

The photocatalyst coating liquid as described in any one of Claims 11-14 whose said inorganic oxide particle is a silica particle.

The inorganic oxide has a number average particle size of more than 5 nm and less than 40 nm calculated by measuring the length of any 100 particles entering a 200,000-fold field of view with a scanning electron microscope. Item 16. The photocatalyst coating solution according to any one of Items 11 to 15.

The photocatalyst coating liquid according to any one of claims 11 to 16, wherein the solvent is water .