摘要
以壳聚糖为涂膜基质,采用原位改性法制备了纳米CaCO_3/壳聚糖复合涂膜,考察了纳米CaCO_3质量分数对复合涂膜理化性能的影响。结果表明,添加纳米CaCO_3可以显著提高壳聚糖涂膜的拉伸强度和断裂伸长率,提高其对O_2和水蒸气阻隔能力,降低CO_2阻隔能力。当纳米CaCO_3的质量分数为1.5%时,纳米CaCO_3/壳聚糖复合涂膜的理化性能最佳。
Nano-CaCO3/chitosan composite coating with different contents of nano-CaCO3 are prepared through insitu modification method with chitosan as coating matrix and the effects of nano-CaCO3 dosage on the physicochemical properties of the composite coating are studied. The results show that the addition of nano-CaCO3 can help the chitosan coating to lift significantly the tensile strength and elongation at break,improve the barrier ability to O2 and water vapor,and lower the barrier ability to CO2.The physicochemical properties of in-situ modified nano-CaCO3/chitosan composite coating reach the best at a nano-CaCO3 dosage of 1. 5%.
作者
韩英
郝文婷
魏旭青
王明
孙彤
谢晶
励建荣
HAN Ying;HAO Wen-ting;WEI Xu-qing;WANG Ming;SUN Tong;XIE Jing;LI Jtan-rong(College of Food Science and Engineering, Bohai University, Jinzhou 121013, China;National ＆ Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China;Propaganda Department of Wuyi County Party Committee, Hengshui 053400, China;College of Food Sciences and Technology, Shanghai Ocean University, Shanghai 201306, China)
出处
《现代化工》
CAS
CSCD
北大核心
2018年第9期77-80,共4页
Modern Chemical Industry
基金
国家重点研发计划课题(2016YFD0400805)
国家自然科学基金资助项目(31371858)
关键词
壳聚糖
纳米CACO3
涂膜
原位改性
理化性能
chitosan
nano-CaCO3
coating
in-situ modification
physicochemical property
