FUNCTIONAL MATERIAL AND METHOD FOR PRODUCING SAME
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United States of America Patent
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Issued Date -
May 11, 2023
app pub date -
Mar 24, 2021
filing date -
Mar 25, 2020
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Abstract
The purpose of the present invention is to provide: a functional material which is prepared by using aluminum as a base material and has a bactericidal effect; and a method for producing the functional material. The functional material comprises an aluminum base material and a functional film which is a hydrated aluminum oxide film formed on the surface of the aluminum base material. The functional film has nano-order depressions and protrusions formed on the surface thereof and, as a result, the functional film can have a bactericidal effect to kill bacteria. The functional material is produced by subjecting an aluminum base material to a boiling treatment in boiled water for a predetermined treatment time to form, on the surface of the aluminum base material, a hydrated aluminum oxide film having nano-order depressions and protrusions formed on the surface thereof.
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