Composite Polymer Electrolyte Membranes based on Nafion and Modified PVDF Electrospun Nanofiber Mats
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2020年第4期
论文作者：何贻宁 WANG Di 李琼 HUANG Leping BAO Haifeng
文章页码：677 - 681
摘 要：We fabricated the nanofiber composite membranes by impregnating Nafion into the modified polyvinylidene fluoride(PVDF) electrospinning nanofiber mat for proton exchange membrane fuel cells applications.The hydrophobic PVDF nanofibers mat became to the hydrophilic state by alkali treatment for the full embedding of Nafion into the PVDF network.The fabricated composite membranes exhibit significantly enhanced thermal stabilities,swelling resistance,and observably improved mechanical property compared to the pristine Nafion membrane.When the content of PVDF nanofiber mat is 15.1wt% in the membrane,the proton conductivity of the nanofiber composite membrane is nearly equal to that of pristine Nafion membrane with the same condition.The experimental results show that the prepared composite membrane can be used as a promising polyelectrolyte membrane for fuel cell applications.
何贻宁1，WANG Di1，李琼1,2，HUANG Leping1,3，BAO Haifeng1,3
1. School of Materials Science and Engineering, Wuhan Textile University2. High-Tech Organic Fibers Key Laboratory of Sichuan Province3. State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University
摘 要：We fabricated the nanofiber composite membranes by impregnating Nafion into the modified polyvinylidene fluoride(PVDF) electrospinning nanofiber mat for proton exchange membrane fuel cells applications.The hydrophobic PVDF nanofibers mat became to the hydrophilic state by alkali treatment for the full embedding of Nafion into the PVDF network.The fabricated composite membranes exhibit significantly enhanced thermal stabilities,swelling resistance,and observably improved mechanical property compared to the pristine Nafion membrane.When the content of PVDF nanofiber mat is 15.1wt% in the membrane,the proton conductivity of the nanofiber composite membrane is nearly equal to that of pristine Nafion membrane with the same condition.The experimental results show that the prepared composite membrane can be used as a promising polyelectrolyte membrane for fuel cell applications.
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