Bài viết Nghiên cứu chế tạo màng điện phân polyme dẫn ion trên cơ sở cao su tự nhiên loại protein epoxy hóa nghiên cứu chế tạo màng điện phân trên cơ sở EDPNR có hàm lượng nhóm epoxy khác nhau kết hợp muối LiCF3SO3. | JST Engineering and Technology for Sustainable Development Volume 31 Issue 4 October 2021 068-074 Preparation of Ionic Conductivity Polymer Electrolyte Film Based on Epoxidized Deproteinized Natural Rubber Nghiên cứu chế tạo màng điện phân polyme dẫn ion trên cơ sở cao su tự nhiên loại protein epoxy hóa Trinh Thi Hang1 Le Cao Chien1 Bui Thi Thanh Binh2 Nguyen Thi Hong Phuong2 Seiichi Kawahara3 Phan Trung Nghia2 Vietnam Institute for Building Materials Hanoi Vietnam 1 2 School of Chemical Engineering Hanoi University of Science and Technology Hanoi Vietnam 3 Department of Materials Science and Technology Nagaoka University of Technology Japan Email Abstract Ionic conductivity polymer electrolyte film based on epoxidized deproteinized natural rubber EDPNR and lithium salt lithium triflate LiCF3SO3 were prepared by solution casting technique. The EDPNR was prepared from deproteinized natural rubber latex DNR epoxidized in the latex stage with fresh peracetic acid 33 which was deproteinized by incubation of the latex with 0 1 wt urea and 1 wt surfactant. The ionic conductivity of EDPNR mixed with lithium salt was investigated through impedance analysis. The results show that the conductivity of EDPNR LiCF3SO3 mixture was dependent on LiCF3SO3 salt concentration and amount of epoxy group. The highest ionic conductivity at room temperature obtained is 1 71 x 10-5 at 35 wt LiCF3SO3 and 45 mol epoxy groups. Fourier transform infrared spectroscopy FTIR spectra showed evidence of complexation between EDPNR and LiCF3SO3. Glass transition temperature Tg displayed an increasing trend in which are the increase in salt concentration and the increase in epoxy group concentration. Keywords Epoxidized deproteinized natural rubber ionic conductivity polymer electrolyte. Tóm tắt Màng điện phân polyme dẫn ion trên cơ sở cao su tự nhiên loại protein epoxy hóa EDPNR và muối triflat LiCF3SO3 được chế tạo bằng phương pháp tạo màng dung dịch. Cao su tự .
