【摘要】 基于化学共沉淀法,以正丁醇为表面处理剂,共沸蒸馏,制备出长径比约为2.5∶1.0柱纳米羟基磷灰石(HA),并对相关产物进行XRD、TEM、DSC、FT-IR的分析。结果表明,正丁醇与HA表面的OH基可以脱水形成C—O—P键,在HA表面接枝一层O—C4H9有机基团。HA经正丁醇表面处理后与未经表面处理的相比,晶化温度降低200℃左右,晶粒尺寸减小2/3左右,且团聚现象明显改善。更多还原

【Abstract】 N-Butyl alcohol was used as surface treatment agent to prepare columned nano-hydroxyapatite（HA）（L/D ratio is about 2.5/1） via azeotropic distillation based on chemical co-deposited method.The（samples） were characterized by XRD,TEM,DSC and FT-IR means.n-Butyl alcohol could dehydrate with the hydroxyl groups on the HA surface to form C—O—P bonds,so the —O—C₄H₉ groups were grafted on HA particles.Compared with the untreated HA,the crystalline temperature of HA treated with n-butyl-alcohol was decreased by two hundred centigrade,the crystallite dimension of HA treated with nbutyl alcohol was reduced by two thirds,moreover,the particle aggregation phenomena was decreased obviously.更多还原