In order to develop low-cost proton exchange membrane,sulfonated polyether-ether-ketone(SPEEK)/quaternized polynorbornene(TAPNM)composite proton exchange membrane is prepared through solution casting method,and its mechanical properties,dimensional stability,ion exchange capacity,and proton conductivity are characterized.It is verified that the prepared composite membrane shows good transparency and homogeneity.Dimensional stability and mechanical properties tests show that the addition of TAPNM can significantly enhance the dimensional stability and mechanical properties of the composite membrane.As the content of TAPNM is around 5wt％,the proton conductivity of the composite membrane reaches 53.19 mS·cm-1 at 30℃,which is 1.2 times that of SPEEK membrane.
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