【摘要】 在无化学处理的条件下制备出淀粉/聚乙烯醇(PVA)复合膜,进行了力学性能、溶胀度及红外光谱测试,并通过溶血试验、动态凝血试验、血小板消耗试验对复合膜的血液相容性进行了表征。研究结果表明,通过共混改性把淀粉引入到PVA中,改善了力学性能和血液相容性。当PVA与淀粉的质量比为4∶1时,复合膜的抗拉强度为13.73 MPa,抗拉应变率为43.07%,性能最佳。更多还原

【Abstract】 The starch/polyvinyl alcohol(PVA) composite membranes were prepared through blending PVA with starch without any chemical treatment.The starch/PVA membranes were characterized by the mechanical assay,swelling test and FTIR analysis.The blood-compatibility of the blending films was evaluated by using the hemolysis assay,dynamic coagulation time and platelet consumption.The results show that the mechanical properties and blood-compatibility of composite membranes are improved as blending starch into PVA.When the mass ratio of PVA and starch is 4∶1,the composite films have quite good tensile strength and tensile strain,reaching to 13.73 MPa and 43.07% respectively,more excellent than those of other composite membranes.更多还原