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作 者:张琪[1] 陆婕妤 钟璟[1] 郭向前[2] ZHANG Qi;LU Jie-yu;ZHONG Jing;GUO Xiang-qian(Jiangsu Provincial Key Laboratory of Fine Petrochemical Engineering,School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China;Sinopec Yangzi Petrochemical Company Limited,Nanjing 210048,China)
机构地区:[1]常州大学石油化工学院,常州大学精细石油化工江苏省重点实验室,江苏常州213164 [2]中国石化扬子石油化工有限公司,江苏南京210048
出 处:《现代化工》2024年第2期91-96,共6页Modern Chemical Industry
基 金:国家自然科学基金(21306012);江苏省精细石油化工重点实验室开放课题基金资助项目(KF2106);江苏省研究生科研与实践创新计划项目(KYCX22-3090)。
摘 要:采用溶剂蒸发法制备聚(2,5-苯并咪唑)/磺化聚醚醚酮(ABPBI/SPEEK)高温质子交换复合膜。考察了SPEEK的掺入对ABPBI/SPEEK质子交换复合膜的结构及性能的影响。结果表明,ABPBI膜和ABPBI/SPEEK复合膜在高温下的热稳定性能良好;随着SPEEK的掺入,ABPBI/SPEEK复合膜有更好的氧化稳定性和机械性能,ABPBI/SPEEK(20%)复合膜在芬顿试剂中96 h后的质量损失为0.84%,其拉伸强度为120.51 MPa,相较于Nafion 117膜明显提高;ABPBI/SPEEK(20%)复合膜的酸掺杂率为186.68%,该膜在160℃、0%RH时的质子电导率为3.4 mS/cm,约为ABPBI膜的1.78倍。Poly(2,5-benzimidazole)/sulfonated polyether ether ketone(ABPBI/SPEEK)high-temperature proton exchange composite membrane is prepared through using a solvent evaporation method.The effect of SPEEK addition on the structure and properties of ABPBI/SPEEK proton exchange composite membrane is investigated.It is indicated that both ABPBI membrane and ABPBI/SPEEK composite membrane have good thermal stability at high temperature.With the addition of SPEEK,ABPBI/SPEEK composite membrane shows better oxidation stability and mechanical properties.ABPBI/SPEEK(20%)composite membrane delivers a 0.84%of weight loss after 96 h in Fenton reagent,and its tensile strength is 120.51 MPa,which is significantly higher than that of Nafion117 membrane.The acid doping rate of ABPBI/SPEEK(20%)composite membrane is 186.68%,its proton conductivity is 3.4 mS·cm-1 at 160℃and 0%RH,which is approximately 1.78 times that of ABPBI membrane.
关 键 词:聚(2 5-苯并咪唑) 磺化聚醚醚酮 质子交换膜 高温 质子电导率
分 类 号:TM911.4[电气工程—电力电子与电力传动]
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