标题：A new biodegradable sisal fiber-starch packing composite with nest structure
作者：Xie, Qi; Li, Fangyi; Li, Jianfeng; Wang, Liming; Li, Yanle; Zhang, Chuanwei; Xu, Jie; Chen, Shuai
作者机构：[Xie, Qi; Li, Fangyi; Li, Jianfeng; Wang, Liming; Li, Yanle; Zhang, Chuanwei; Xu, Jie; Chen, Shuai] Shandong Univ, Minist Educ, Key Lab High Efficienc 更多
通讯作者地址：[Li, FY]Shandong Univ, Minist Educ, Key Lab High Efficiency & Clean Mech Mfg, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China.
关键词：Sisal fiber-starch packing composites; Alkaline treatment; Cushioning; property; Nest structure; Compatibility; Biodegradability
摘要：A new completely biodegradable sisal fiber-starch packing composite was proposed. The effects of fiber content and alkaline treatment on the cushioning property of the composites were studied from energy absorption efficiency, cellular microstructure and compatibility between fiber and starch. With increasing fiber content, the nest structure of composites becomes dense first and then loosens, resulting in initial enhancement and subsequent weakening of the cushioning property of the composites. The composite with 4:13 mass ratio of fiber and thermoplastic starch (TPS) exhibit the optimal cushioning property. Alkaline treatment increases the compatibility between sisal fiber and TPS, promotes the formation of dense nest structure, thereby enhances the cushioning property of the composites. After biodegradability tests for 28 days, the weight loss of the composites was 62.36%. It's found that the composites are a promising replacement for expandable polystyrene (EPS) as packing material, especially under large compression load (0.7-6 MPa).