PREPARATION OF NOVEL REGENERATED CELLULOSE FILM USING ORGANIC ELECTROLYTE SOLUTIONS(OES)
The use of ILs in the dissolution of cellulose requires high temperatures that cause cellulose depolymerization(thus,the mechanical properties are negatively affected),and high viscosity of the cellulose solution.In this study,we used organic electrolyte solutions(OES)consisting of 1-ethyl-3-ethyl-imidazolium acetate(EmimAc)and dimethyl sulfoxide(DMSO)to dissolve cotton linter at room temperature for preparing the regenerated cellulose(RC)film.The dissolution process and the viscosity of the cellulose/OES solution were investigated.Results showed that the molar fraction of EmimAc per OES in the range of 0.2 to 0.4 can rapidly dissolve cotton linter at room temperature,due to the synergistic effect of EmimAc and DMSO.The addition of DMSO had significantly decreased the viscosity of the cellulose solution,in comparison with the control(the EmimAc only).Notably,the DP of the RC film was much higher than that of the control film,indicating significant improvement of mechanical properties.Thus,this study provides a novel,simple and low-cost approach to prepare RC film with strong mechanical properties.
Dong Cheng Xiaofei Tian Xingye An Yangbing Wen Yonghao Ni
Tianjin Key Laboratory of Pulp and Paper,Tianjin University of Science & Technology,Tianjin 300457,C School of Bioscience and Bioengineering,South China University of Technology,Guangzhou,510006,China Tianjin Key Laboratory of Pulp and Paper,Tianjin University of Science & Technology,Tianjin 300457,C
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
1-5
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）