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.
出处
《包装工程》
CAS
CSCD
北大核心
2011年第9期1-4,19,共5页
Packaging Engineering
基金
国家星火计划(2008GA670021)
关键词
戊二醛
交联羧甲基纤维素
复合膜
特性
glutaric dialdehyde
cross-linked carboxymethyl cellulose
complex film
property
