| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a hydroxyapatite coating film capable of forming a uniform coating film on the surface even for a substrate having low heat resistance. SOLUTION: A substrate is immersed particularly in an acidic 1st aq. soln. such as an aq. soln. of hydrochloric acid and after being taken out and dried, is immersed in an alkaline 2nd aq. soln. As the 2nd aq. soln., an aq. soln. of sodium hydroxide or potassium hydroxide can be used. The substrate taken out of the 2nd aq. soln. may further by immersed in a 3rd aq. soln. where an apatite component of substantially satd. or supresatd. concn. is dissolved. Thereby, a thick hydroxyapatite coating film may easily be formed. As the substrate, a substance consisting of a metal, ceramics or an org. high molecular material can be used. In this production method, since heating to a high temp. is not required, this method is applicable even to the substrate having low heat resistance, in particular a textile or the like consisting of synthetic fibers or the like. |
