纤维素
离子液体
再生纤维素
材料科学
热稳定性
化学工程
溶解
环境友好型
极限抗拉强度
原材料
溶剂
生物降解
复合材料
化学
有机化学
生态学
工程类
生物
催化作用
作者
Jinhui Pang,Miao Wu,QiaoHui Zhang,Xin Tan,Feng Xu,Xueming Zhang,Run‐Cang Sun
标识
DOI:10.1016/j.carbpol.2014.11.067
摘要
With the serious "white pollution" resulted from the non-biodegradable plastic films, considerable attention has been directed toward the development of renewable and biodegradable cellulose-based film materials as substitutes of petroleum-derived materials. In this study, environmentally friendly cellulose films were successfully prepared using different celluloses (pine, cotton, bamboo, MCC) as raw materials and ionic liquid 1-ethyl-3-methylimidazolium acetate as a solvent. The SEM and AFM indicated that all cellulose films displayed a homogeneous and smooth surface. In addition, the FT-IR and XRD analysis showed the transition from cellulose I to II was occurred after the dissolution and regeneration process. Furthermore, the cellulose films prepared by cotton linters and pine possessed the most excellent thermal stability and mechanical properties, which were suggested by the highest onset temperature (285°C) and tensile stress (120 MPa), respectively. Their excellent properties of regenerated cellulose films are promising for applications in food packaging and medical materials.
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