QF/PEN复合生物材料的制备与表征  

Preparation and characterization of QF/PEN composite biomaterials

作　　者：王广妮[1] 李鸿[1] 郝新彦[1] 陈抒天[1] 任浩浩[1] 严永刚[1] 

机构地区：[1]四川大学物理科学与技术学院,四川成都610064

出　　处：《功能材料》2013年第12期1778-1781,共4页Journal of Functional Materials

基　　金：国家科技支撑计划资助项目(2007BAE13B03);国家自然科学基金资助项目(31070834);生物材料与制品开发四川省青年科技创新研究团队资助项目(2011JTD0024)

摘　　要：通过挤出法制备了石英纤维(quartz fiber,QF)/聚萘二甲酸乙二醇酯(poly ethylene naph-thalate,PEN)复合材料,通过燃烧实验对复合材料中石英纤维含量和材料的均一性进行了检测;用材料力学实验机测试了材料的力学性能;通过IR、XRD、SEM对复合材料进行了表征;用L929成纤维细胞与材料复合培养进行了细胞毒性评价。结果表明,石英纤维在PEN基体中的分布均匀;QF与PEN基体之间有氢键的结合,形成了稳定的界面;复合材料的力学强度比单纯聚合物基体有明显增强,当纤维含量为30%和45%时,QF/PEN复合材料的拉伸强度分别为80.21和87.96MPa,弯曲强度分别为125.71和137.79MPa,与骨组织生物力学匹配;细胞实验表明两类复合材料细胞毒性为1级,无细胞毒性。可见,QF/PEN复合材料是一种潜在的承重骨修复材料。Quartz fiber(QF)/poly ethylene naphthalate(PEN)composites were prepared by the extrusion method through double screw extruder.The composites were characterized by burning test,IR,XRD,SEM and cell cytotoxicity evolution as well as mechanical test.The results show that QF was uniformly distributed in PEN matrix and the composites revealed the good homogeneous composition.Hydrogen bones were formed between QF and PEN and illustrated a stable interface.When the contents of the quartz fibers are 30% and 45%,the tensile strength are 80.21 and 87.96MPa,and the bending strength are 125.71 and 137.79MPa,respectively,which were close to those of the natural compact bone.In addition,cytotoxicity test showed that the cytotoxicity levels of the composites were grade 1,indicating that composite had on cell toxicity.We draw the conclusion that the QF/PEN composites have potential application in load-bearing bone repair.

关 键 词：石英纤维 聚萘二甲酸乙二醇酯 挤出共混 复合材料 生物材料 

分 类 号：TB332[一般工业技术—材料科学与工程]