机构地区: 佛山科学技术学院理学院化学与化工系
出 处: 《中国医药工业杂志》 2012年第3期182-185,共4页
摘 要: 用流延法制备壳聚糖与聚乳酸或聚(R)-3-羟基丁酸甲酯共混膜。壳聚糖-聚乳酸(1∶1,w/w)和壳聚糖-聚(R)-3-羟基丁酸甲酯(1∶1,w/w)共混膜的抗拉强度为(25.39±1.63)和(23.49±0.43)MPa,吸水率为(32.65±2.41)%和(33.72±3.11)%。该壳聚糖-聚乳酸膜在人工组织液中浸泡45 d后,降解率为(32.26±0.56)%,提示其可诱导新组织再生。 The blended membrane consisted of chitosan and polylactide (PLA) or poly (R)-3-hydroxybutyric acid methyl ester (PHB) was prepared by the tape casting process. The tensile strength of chitosan-PLA (1:l, w/w) and chitosan-PHB (1:1, w/w) blended membrane were (25.394±1.63) and (23.49±0.43) MPa with the water absorption rate of (32.65±2.41) % and (33.72±3.11) %, respectively. The degrading rate of the chitosan-PLA blended membrane immersed in the artificial tissue fluid for 45 d was (32.26±0.56) %. It indicated that the membrane could induce the new tissue to regenerate.
领 域: [一般工业技术]