【作者】 张新林； 罗世永； 张文雨； 许文才；

【Author】 Xinlin Zhang;Shiyong Luo;Wenyu Zhang;Wencai Xu;Beijing Key Laboratory of Printing and Packaging Materials and Technology,Beijing Institute of Graphic Communication;

【机构】 北京印刷学院印刷包装材料与技术实验室；

【摘要】 以价格低廉来源广泛的马铃薯淀粉作为生物可降解包装膜基材,甘油作为增塑剂,聚乙烯醇作为成膜剂,利用溶液流延法制备了马铃薯淀粉基生物可降解包装膜。对马铃薯淀粉基生物可降解包装膜的机械性能,透明性和颜色的进行测试评估。结果显示:马铃薯淀粉基生物可降解包装膜随着甘油含量的增加淀粉大分子的流动性增加,使其变软。与此同时,透明度明显降低。更多还原

【Abstract】 Low price of potato starch as a wide range of sources of biodegradable packaging film substrate,glycerol as a plasticizer,polyvinyl alcohol as a film-forming agent,potato starch-based biodegradable packaging films were prepared by solution casting.Tests were run on potato starch-based biodegradable packaging films to determine mechanical properties,transparency and color evaluation.It was observed that the increase of the glycerol content in the films increased the macromolecular mobility,and the potato starch films became less stiff and more flexible.Meanwhile the transparency was decreased obviously.更多还原