【作者】 刘洋； 陈彦模；

【Author】 LIU Yang,CHEN Yan-mo (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Material Science and Engineering,Donghua University,Shanghai 201620,China)

【机构】 东华大学材料学院纤维材料改性国家重点实验室；

【摘要】 聚3-羟基丁酸酯和聚3-羟基戊酸酯共聚物(PHBV)和贝壳粉都是可生物降解和具有生物相容性的天然材料。通过熔融共混方法制备了PHBV/贝壳粉复合材料,并用扫描电子显微镜(SEM)、偏光显微镜(POM)、差示扫描量热仪(DSC)、热分析仪(TGA)及拉伸测试分别对复合材料相形态、结晶性能、热性能和力学性能进行研究。结果显示,贝壳粉均匀分散在PHBV基体中;PHBV/贝壳粉复合材料的结晶性能随贝壳粉含量的不同而变化;复合材料的热稳定性随贝壳粉含量的增加逐渐下降;复合材料的拉伸强度、断裂伸长率相对于纯PHBV均有提高。更多还原

【Abstract】 Poly(3-hydroxybutyrate-co-hydroxyvalerate)(PHBV) and shell powder are both biodegradable and biocompatible materials.PHBV/shell powder composites were prepared by the melt-blending method.Phase morphology,crystallization,thermal and mechanical properties of PHBV/shell powder composites were investigated by scanning electron microscope(SEM),polarizing optical microscope(POM),differential scanning calorimeter (DSC),thermogravimetric analysis(TGA) and tensile test in detail.The results showed that shell powder mostly homogeneously dispersed in the PHBV matrix,and the crystallization behavior of the PHBV/ shell powder composites changed with different shell powder content.Moreover,the thermal stability of the composites decreased with the increasing content of shell powder.The tensile strength and elongation at break of the composites were improved compared to neat PHBV.更多还原