离子液体
材料科学
纤维素
复合材料
热的
细菌纤维素
化学工程
有机化学
化学
热力学
物理
工程类
催化作用
作者
Zhigang Chen,Yun-Ya Wang,Xinrong Li,Xiaozhi Liu,Yanyan Xie,Cheng Zhong
标识
DOI:10.1177/08927057241308155
摘要
Bacterial cellulose (BC) is a natural polymer secreted by microorganisms with excellent tensile strength (TS) and Young’s modulus (YM). However, the elongation at break (EAB) and toughness (TH) of dehydrated BC membranes are inadequate for some special applications. In this study, ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl) was introduced into BC membranes to fabricate composite membranes. It was found that AmimCl could dissolve the BC nanofibers to a certain extent, and destroy the hydrogen bonds between the protofibrils. Therefore, compared with pure BC membrane, BC/AmimCl composite membranes exhibited improved EAB and TH. In addition, AmimCl had a positive effect on the thermal stability and transparency of the composite membranes. This study shows that ionic liquids have great potential to change the mechanical properties, optical properties and thermal stability of BC membranes.
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