METHOD FOR PRODUCING HYDROXYAPATITE, INTERMEDIATE BODY FOR PRODUCING HYDROXYAPATITE, AND NANOLATTICE-SHAPED HYDROXYAPATITE

摘要

PROBLEM TO BE SOLVED: To obtain a nanofiber-shaped HAp having an extremely large specific surface area by bringing a phosphoric acid source into reaction with Ca²⁺ in a mild reaction field.;SOLUTION: A phosphoric acid-containing gelatine gel is brought into contact with a Ca²⁺-containing solution, and, by ion exchange with protons H⁺, Ca²⁺ is diffused into the gelatine sol, so as to produce a calcium hydrogen phosphate. The crystallization water of DCPD is removed, and thereafter, alkali treatment is performed, so as to synthesize HAp. The form of HAp can be controlled with additives to the gelatine gel and an alkali treatment liquid.;COPYRIGHT: (C)2007,JPO&INPIT