壳聚糖-明胶共混膜的制备及机械性能测试  

Preparation and Mechanical Property Testing of Chitosan-gelatin Blend Film

作　　者：张林鹤[1] 

机构地区：[1]武警工程学院,西安710086

出　　处：《包装工程》2010年第21期11-12,54,共3页Packaging Engineering

摘　　要：以共混方法制备了壳聚糖-明胶共混薄膜,并对共混薄膜的机械性能进行了测试。研究表明:壳聚糖-明胶共混膜的混合比例可以改变共混膜的力学强度,共混膜随明胶含量增加其弹性模量和拉伸断裂应力逐渐减小,壳聚糖溶液与明胶共混的体积比为4∶6时,拉伸强度达到最小值,而断裂伸长率在壳聚糖与明胶体积比为6∶4的时候达到了最大值。The chitosan-gelatin blend film was prepared by blending method,and the mechanical properties of the chitosan-gelatin blend film were tested.It was shown by research that the mechanical strength of chitosan-gelatin blend film could be changed by the mixing proportion of chitosan-gelatin blend film,whose modulus of elasticity and tensile failure stress were gradually decreased with the increase in content of gelatin,the tensile-strength was minimum when the volume ration between chitosan solution and gelatin blend is 4∶6.The elongation at break was maximum when the volume ration between chitosan and gelatin was 6∶4.

关 键 词：壳聚糖 明胶 共混膜 

分 类 号：TB484.3[一般工业技术—包装工程] TB487