戊二醛交联对CCMC/PVA复合膜性能的影响  

Effect of Glutaraldehyde Crosslinking on Performance of CCMC/PVA Blend Films

作　　者：鹿保鑫[1] 王喜刚 周睿[1] 曹龙奎[1,3] 

机构地区：[1]黑龙江八一农垦大学,大庆163319 [2]九三集团天津大豆科技有限公司,天津300461 [3]黑龙江省农产品加工工程技术研究中心,大庆163319

出　　处：《包装工程》2011年第9期1-4,19,共5页Packaging Engineering

基　　金：国家星火计划(2008GA670021)

摘　　要：采用流延成膜工艺制备了CCMC/PVA共混复合膜,研究了戊二醛交联剂对复合膜的透光性能和力学性能的影响。结果表明:交联处理膜的致密性和机械性能显著提高;当戊二醛添加量为2%(质量分数),体系的pH为10,交联反应温度为85℃,交联时间为35 min时,复合膜的拉伸强度可达18.91 MPa,断裂伸长率为226%,透光率为75%。CCMC/PVA blend film was prepared by solution mixing method.The effect of glutaric dialdehyde crosslinking agent on the hydrolytic resistance,light transmission and mechanical property of CCMC/ PVA complex film were studied.The results showed that the compactness,water resisting property and mechanical property of CCMC/PVA blend film increased remarkably by crosslinking treatment.The tensile strength was 18.91 MPa,elongation at break was 226%,luminousness was 75% when the amount of glutaric dialdehyde was 2%,pH was 10,crosslinking reaction temperature was 85 ℃,and reaction time was 35 min respectively.

关 键 词：戊二醛 交联羧甲基纤维素 复合膜 特性 

分 类 号：TB484.3[一般工业技术—包装工程] TB332