PVA/壳聚糖/淀粉水凝胶的制备和性能  

Preparation and Properties of PVA/Chitosan/Startch Hydrogel

作　　者：尤春[1] 张振方[1] 童昕[1] 

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110168

出　　处：《沈阳理工大学学报》2007年第4期19-21,共3页Journal of Shenyang Ligong University

摘　　要：采用反复冷冻-解冻法制备了一系列的PVA/壳聚糖/淀粉水凝胶.测试了共混膜的力学性能、脱水率和溶胀度.结果表明:壳聚糖含量为2.7%的水凝胶具有最大的断裂延伸率,拉伸强度也较高.淀粉和壳聚糖的加入,改变了复合水凝胶的脱水率和溶胀度.Different contents of PVA/Chitosan/startch hydrogels are prepared by the repeated freezing- thawing method. The mechanical properties, dehydration ratio and swelling ratio are determined. It shows that the hydrogel with the chitosan contents of 2.7% has the lagest fracture elongation and larger tensile strengh. Introduction of starch and Chitosan changes the dehydration ratio and swelling ratio of the composite hydrogels.

关 键 词：组织工程 水凝胶 溶胀度 力学性能 

分 类 号：O631.21[理学—高分子化学]