聚DL-丙交酯/羟基磷灰石(PDLLA/HA)复合材料——Ⅱ:硅烷偶联剂处理羟基磷灰石表面的作用研究

被引:20
作者
全大萍
李世普
袁润章
廖凯荣
卢泽俭
王海华
机构
[1] 中山大学高分子研究所!广州
[2] 武汉工业大学生物材料与工程中心!武汉
基金
广东省自然科学基金;
关键词
聚DL-丙交酯; 羟基磷灰石; 硅烷偶联剂; 复合材料;
D O I
10.13801/j.cnki.fhclxb.2000.04.025
中图分类号
TB33 [复合材料];
学科分类号
摘要
采用硅烷偶联剂 (A- 174)对羟基磷灰石 (HA)表面进行处理 ,XPS分析表明 ,偶联剂在羟基磷灰石表面形成多层结构 ,并生成稳定的化学键 O- P- Si。将经偶联剂处理的 HA微粉与聚 DL-丙交酯 (PDL L A)复合 ,所制备的复合材料力学强度与处理前相比得到明显提高。SEM显示 ,经处理后的 HA微粒在 PDL L A基质中分散均匀 ,两者结合紧密。本文作者认为 ,加强复合材料的界面相互作用和提高填充质在基质中的分散度是提高复合材料力学强度的有效途径。
引用
收藏
页码:114 / 118
页数:5
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