γ-聚谷氨酸/可得然胶共混膜的制备研究

摘要

本研究的目的是制备一种可以生物医用的新型材料。以可得然胶和γ-聚谷氨酸为原料,通过溶液共混法制备可得然胶/γ-聚谷氨酸共混吸水膜材料。产物用吸水率测试和力学性能测试等方法对共混膜进行了表征。结果显示,当可得然胶与γ-PGA质量比为2∶1,反应温度为50℃,交联剂为季戊四醇时,共混膜的各项性能达到最佳,其吸水率为1200,透气性为152.625 g/（h.m2）,力学强度为10.6 MPa。%It was to prepare one kind of novel materials used in biomadical area.Curdlan and γ-poly glutamic acid were used as raw materials,and γ-poly glutamic acid/Curdlan blend films were prepared by solution blending method.The blend films were characterized by absorbentrate analysis,mechanical properties testing,and so on.The results showed that when the ratio of γ-poly glutamic acid and Curdlan was 2:1,and the reaction temperature was 50 ℃,and pentaerythritol was used as crosslinking agent,the blend films were obtained with the best performance.The best performance was that its water absorption was 1200,water vapor permeability was 152.625 g/(h·m2),and the mechanical strength was 10.6 MPa.