摘要
为了改善溶胶–凝胶生物活性玻璃与高分子材料的相容性,用硅烷偶联剂氨丙基三乙氧基硅烷对生物活性玻璃进行表面处理,并用X射线光电子能谱对处理后的生物活性玻璃的表面进行元素分析。结果表明:偶联剂通过Si—O—Si键被引入到生物活性玻璃表面。用处理后的生物活性玻璃与壳聚糖–明胶复合制备了多孔支架。扫描电子显微镜观察发现:复合多孔支架的两相相容性好,界面结合紧密;支架的孔隙连通、排列规则。力学测试表明:改性后的溶胶–凝胶生物活性玻璃与壳聚糖–明胶制备的复合支架力学性能得到明显改善。
In order to improve the interface compatibility of polymer and sol-gel bioglass, surface of bioglass was treated by 3-aminopropyl triethoxysilane. The element components of bioglass surface were analyzed by an X-ray photoelectron spectroscope. The results show that 3-aminopropyl triethoxysilane was grafted on the particle surface of bioglass through the Si-O-Si bond. The bioglass composite scaffolds were prepared through blending bioglass after treatment with chitosan-gelatin. Scanning electronic microscope observation shows that in composite scaffolds the micro particles of two material phases are uniformly dispersed in chitosan-gelatin and have good compatibility. The holes of scaffold are connected each other and aligned regularly. The mechanical properties of composite scaffolds from treated bioglass are improved obviously.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2006年第7期836-841,共6页
Journal of The Chinese Ceramic Society
基金
国家自然科学基金(50272021
50472054
50403023)
国家973项目(2005CB623902)
广东省自然科学基金(04205786
020898
04300428)
中国博士后科学基金(2003033035)资助项目
