Title:
WHITE ANODIZING METHOD USING NANOPARTICLES
Document Type and Number:
WIPO Patent Application WO/2022/108011
Kind Code:
A1
Abstract:
Disclosed is a white anodizing method using nanoparticles, to obtain white aluminum. The white anodizing method according to the present invention comprises the steps of: (a) immersing an aluminum material in a first acid solution to primarily form a film on the surface of the aluminum material; (b) removing the film; (c) immersing aluminum from which the film has been removed, to secondarily form a film on the surface of the aluminum material; (d) immersing, in a second acid solution, the aluminum material on which the film is formed; (e) immersing the immersed aluminum material in a nanoparticle solution; and (f) maintaining the degree of vacuum of the aluminum material immersed in the nanoparticle solution at 0.1 Mpa or less in a vacuum chamber, wherein the nanoparticle solution includes inorganic nanoparticles having a particle diameter of 1-30 nm. White aluminum according to the present invention comprises: an aluminum material; a film provided on the surface of the aluminum material; pores formed in the film; and nanoparticles provided in the pores.
Inventors:
LEE EUN HAN (KR)
MOON SUNG MO (KR)
KWON DU YOUNG (KR)
HAN YOUNG KI (KR)
MOON SUNG MO (KR)
KWON DU YOUNG (KR)
HAN YOUNG KI (KR)
Application Number:
PCT/KR2021/005256
Publication Date:
May 27, 2022
Filing Date:
April 26, 2021
Export Citation:
Assignee:
NANO WHITE CO LTD (KR)
International Classes:
C25D11/24; C25D11/08; C25D11/10; C25D11/12
Foreign References:
| KR20070039199A | 2007-04-11 | |||
| KR20070010321A | 2007-01-24 | |||
| KR20170076791A | 2017-07-04 | |||
| JPH06240493A | 1994-08-30 | |||
| JPH0762594A | 1995-03-07 |
Attorney, Agent or Firm:
KIM, Dae Hyun (KR)
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