Rapid fabrication of transparent film directly from wood fibers with microwave-assisted ionic liquids technology

Pengbo Lu; Fan Cheng; Yanghao Ou; Meiyan Lin; Lingfeng Su; Size Chen; Xilang Yao; Detao Liu

doi:10.1016/j.carbpol.2017.06.057

Rapid fabrication of transparent film directly from wood fibers with microwave-assisted ionic liquids technology

Carbohydr Polym. 2017 Oct 15:174:330-336. doi: 10.1016/j.carbpol.2017.06.057. Epub 2017 Jun 16.

Authors

Pengbo Lu¹, Fan Cheng¹, Yanghao Ou¹, Meiyan Lin¹, Lingfeng Su¹, Size Chen¹, Xilang Yao¹, Detao Liu²

Affiliations

¹ State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China.
² State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China. Electronic address: dtliu@scut.edu.cn.

PMID: 28821075
DOI: 10.1016/j.carbpol.2017.06.057

Abstract

Presently flexibly transparent film or nanopaper from all cellulose was mostly fabricated by assembling cellulose nanofibers disintegrated from macroscopic wood fibers which mostly suffers from potential environmental toxicity or high cost. In this work, we firstly reported an all-cellulose transparent film fabricated by a novel microwave-assisted ionic liquids technology (MILT). The use of MILT for treating the original all-cellulose paper brings nearly 2.6 fold-increases in optical transmission, and 2.0 fold-increases in tensile property compared to those without microwave assistance. More importantly, by contrast with the partial dissolution of cellulose in typical DMAC/LiCl, ILs, NaOH/urea, the MILT is extremely time-saved with responding to the highest increase in mechanical property because the high efficient surface dissolution and welding bind individual sheets together under a micro environment.

Keywords: Ionic liquid; Mechanical properties; Microwave; Transparency.