Conductive graphene coated carboxymethyl cellulose hybrid fibers with polymeric ionic liquids as intermediate

• Published in: Carbohydrate polymers 2022-03, Vol.280, p.119009-119009, Article 119009
• Main Authors: Wang, Jingjing, Liang, Yuan, Huang, Shuohan, Jin, Wenbin, Li, Zefeng, Zhang, Zhenfei, Ye, Chunlin, Chen, Yuwei, Wei, Peng, Wang, Yanping, Xia, Yumin
• Format: Article
• Language: English
• Subjects: Carboxymethyl cellulose; Carboxymethylcellulose Sodium - chemistry; Conductive fiber; Electric Conductivity; Graphene; Graphite - chemistry; Hybrid fiber; Hydrogen Bonding; Ionic Liquids - chemistry; Polymeric ionic liquid; Polymers - chemical synthesis; Polymers - chemistry; Static Electricity
• ISSN: 0144-8617; 1879-1344
• DOI: 10.1016/j.carbpol.2021.119009

In this study, a kind of polymeric ionic liquid (PIL) called PIL-Cl was synthesized and modified to obtain conductive graphene coated carboxymethyl cellulose hybrid fibers. Carboxymethyl cellulose (CMC) was formed into fibers by wet spinning assisted with PILCl. Co-precipitation test of CMC and PIL-Cl demonstrated that PIL-Cl could precipitate with CMC through strong electrostatic interaction and molar ratio of CMC and PIL-Cl (calculated in repeating units) would affect the formation of precipitation. Secondly, modified PIL-Cl named PIL-Ac was used as an intermediate connecting CMC fiber and graphene to fabricate conductive CMC/PIL/graphene fibers. A series of tests were performed on CMC/PIL/graphene fibers, including Raman spectroscopy, scanning electron microscopy and conductivity test. The results showed that PIL-Cl could help form CMC fiber, and PIL-Ac could functionalize it and make it conductive.