以石墨烯纳米片(GNPs)为强韧相,双相磷酸钙(BCP)为基体,采用不同的分散剂,通过热压烧结制备一种力学性能优良的骨组织替代材料.主要研究不同分散剂和GNPs对复合材料的力学性能、物相组成和微观结构的影响.结果表明,添加十六烷基三甲基溴化铵(CTAB)作为分散剂时,由于表面正负电荷吸引,BCP粉体均匀包覆到GNPs的表面,可使GNPs达到较好的分散效果.当GNPs添加量为1.5wt％时,复合材料的弯曲强度和断裂韧性分别达到152 MPa和1.74 MPa·m1/2,与相同条件下制备的纯BCP陶瓷相比,分别提高了55％和76％,表明GNPs对BCP陶瓷具有明显的补强增韧的作用.
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