ELECTROSPINNING OF ORGANOSOLV LIGNIN WITH POLY(ETHYLENE OXIDE)IN N,N-DIMETHYLFORMAMIDE SOLUTION
Recently,carbon fiber originated from lignin was an attractive industrial scalable material and could be applied in various fields,eg.,thermal insulation,reinforcing automobile bodies and so on.Compared to other carbonaceous materials,the lignin-based carbon fiber exhibited excellent mechanical properties,eg.,high strength-to-weight ratio and fatigue resistance,and lowest cost to be processed into structural composites.It has been reported that the original property of lignin and the weight ratio of poly(ethylene oxide)(PEO)to lignin could affect the properties of precursors for preparing carbon fiber.In this study,we used ethanol-organosolv lignin from reed(RL),cornstalk(CL)and poplar(PL),through purified by the methods of ethyl acetate/methyl tert-butyl ether gradient washing,were produce carbon fiber precursor by electrospinning of the solution of lignin and high molecular weight poly(ethylene oxide)(PEO)in N,N-dimethylformamide(DMF)solution.The obtained nanofibers were characterized by the technique of SEM.The results of SEM showed that the morphology of carbon fiber precursor was influenced by the molecular weight of lignin and their function groups contents.It was found that the RL or CL samples and PEO with a weight ratio of 96/4(wt)in DMF solution were successfully spun into fibers.However,for the PL sample,the weight ratio of lignin to PEO was decreased to 96/2(wt).The properties of carbon fiber precursor from hardwood lignin were more excellent than that from grass lignin.With increasing the weight ratio of PEO to lignin,the diameter of prepared fibers was enhanced.Further increasing the weight ratio of PEO to lignin to 4%(wt),the morphology of carbon fiber precursor was scarcely changed.
Ethanol organosolv lignin Precursor Carbon fiber electrospinning
DAI Zhong WANG Xing TANG Biao ZHOU Jing-hui
Liaoning Province Key Laboratory of Plup and Papermaking Engineering,Dalian Polytechnic University,Dalian,Liaoning Province,l16034
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-6
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）