聚苯并咪唑PBI的制备及性能研究18663.pdf.pdf

Poly (vinylidene ?uoride-co-hexa ?uoropropylene)/polybenzimidazole blend nano ?ber supported Na ?on membranes for direct methanol fuel cells Shih-Hua Wang a, Hsiu-Li Lin a , b , * Department of Chemical Engineering & Materials Science, Yuan Ze University, Chung-Li, Taoyuan 32003, Taiwan Fuel Cell Center, Yuan Ze University, Chung-Li, Taoyuan 32003, Taiwan highlights graphical abstract ?Preparation of PVdF-co-HFP and PBI blend electrospun nano ?ber (PVFP- BI) ?lms. ?Preparation of Na ?on/PVFP-- posite membranes by impregnating Na ?on into PVFP-BI ? lms. ?Better DMFC performance of Na ? on/ PVFP-BI than Na ?on when blending 5 e10 wt.% of PBI in PVFP-BI. article info Article history: Received 8 October 2013 Received in revised form 13 January 2014 Accepted 23 January 2014 Available online 2 February 2014 Keywords: Na ? on Poly (vinylidene ? uoride-co- hexa ?uoropropylene) Polybenzimidazole Electrospinning Direct methanol fuel cell abstract This article presents preparation of poly (vinylidene ?uoride-co-hexa ?uoropropylene) (PVdF-co-HFP) and polybenzimidazole (PBI) blend electrospun nano ?ber (PVFP-BI) ?lms from N , N 0-dimethyl acetamide (DMAc)/acetone mixture solutions. Using the PVFP-BI nano ? ber ?lm (thickness w 13 e 15 mm) as a sup- porting material for impregnating Na ?on resin solution, Na ?on/PVFP-posite membranes (thick- ness w 50 mm) are prepared and direct methanol fu