SPEEK/PVP复合质子交换膜的制备研究
作者:刘才林1,马春成1,何年2,梁青松2
单位: 1.西南科技大学 四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,四川 绵阳 621010) (2.四川三三科技有限责任公司,四川 绵阳 621000)
关键词: 磺化聚醚醚酮膜;质子电导率;SPEEK/PVP膜;复合作用机理
出版年,卷(期):页码: 2014,34(4):71-76

摘要:
采用氯磺酸(Cl-SO3H)作磺化剂,合成了磺化聚醚醚酮(SPEEK);并通过不同分子量、掺量的聚乙烯吡咯烷酮(PVP),进行了SPEEK/PVP复合膜材的制备研究。采用傅立叶红外(FT-IR)、热重(TG)、扫描电镜(SEM)、交流阻抗(EIS)以及干湿称重法、芬顿法等,测试分析了PVP的分子量及掺量对SPEEK膜的热稳定性、形貌结构、尺寸稳定性、抗氧化性,以及质子传导性能的影响。结果表明:SPEEK/PVP(质量比为1:1)复合膜具有较好的热稳定性,表面光滑,更加致密,溶胀度可达13.75%,抗氧化稳定性可达2.06%,电导率达0.06 S?cm-1,显著优于SPEEK膜。  
Sulfonated Poly(ther ether ketone)(SPEEK) were synthesized via chlorosulfonic acid (Cl-SO3H) sulfonated method. Furthermore, The influences of molecular weight and dosage of PVP on the structure, thermostability, film-forming, crystallization, and proton conductivity of SPEEK/PVP were characterized by fourier transform infrared spectrum (FT-IR), thermogravimetry(TG), X-ray diffraction (XRD), scanning electron microscopy (SEM), Atomic force microscope(AFM) and electrochemical impedance spectroscopy(EIS). Meanwhile, the properties of SPEEK membrane were evaluated by dissolution method, dry-wet weight method and Fenton method. Results show that: The SPEEK/PVP membrane exhibites good thermostability. To the weight molecular weights 10000 or 30000, When the mass ratio of PVP to SPEEK is 1:1, the cross-section structure of SPEEK/PVP membrane is very smooth and dense, swelling degree reached 13.75%, antioxidat property is about 2.06%, and the conductivity is 0.06 S?cm-1, which is remarkable better than the SPEEK membrane. 
刘才林(1964-),男,四川遂宁市人,博士,教授。研究方向:新能源材料。 Email:liucailin@swust.edu.cn

参考文献:
[1]  Hijikata T.Research and Development of International Clean Energy Network Using Hydrogen Energy(WE-NET)[J].International Journal of Hydrogen Energy,2002,27(2):115-129.
[2]  Davenport R J,Schubert F H.Space Water Electrolysis:Space Station Through Advanced Missions[J].Power Sources,1991,36(3):235-250.
[3]  吴文宏,蒋亚雄,李军.固体聚合物电解质水电解技术研究[J].工厂动力,2003,(2):20-24.
[4]  Alekseev I A,Bondarenko S D,Fedorchenko O A,et al.Development of a heavy water detritiation plant for PIK reactor [ J].Fusion Science and Technology,2005,48:286-289.
[5]  Miller J M,Celovsky S L,Everatt A E,et al.Designand operational experience with a pilot-scale CECE detritiation process[J].Fusion Science and Technology,2002,41:1077-1081.
[6]  Rikukawa M.Proton-conducting polymer electrolyte membranes based on hydrocarbon polymers [J].Prog.Polym.Sci,2000,25:1463-1502.
[7]  Kerres J A.Development of ionomer membranes for fuel cells [J].J.Membr.
Sci,2001,185:3-27.
[8]  Xing P, Robertson G P, Guiver M, et al. Synthesis and characterization of sulfonated poly(ether ether ketone)for proton exchange membranes [J].J.Membr.Sci.2004,229:95-106.
[9]  Shan J,Vaivars G,Luo H,et al.Sulfonated polyether ether ketone(PEEK-WC)/phosphotungstic acid composite:Preparation and characterization of the fuel cell membranes [J].Pure Appl.Chem,2006,78(9):1781-1791.
[10]  Jannasch P.Recent developments in high-temperature proton conducting polymer electrolyte membranes [J].Curr.Opin.Colloid Interface,2003,8(1):96-102.
[11]  Ke C C,Li X J,Shen Q,et al.Investigation on sulfuric acid sulfonation of in-situ sol–gel derived Nafion/SiO2 composite membrane[J].International Journal of Hydrogen Energy,2011, 36(5):3606-3613.
[12]  Kerres J A.Blended and cross-linked ionomer membranes for application in membrane fuel cells[J].Fuel Cells,2005,5(2):230-247.
[13]  杜立广,吴雪梅,焉晓明,等.SPPESK/SPEEK 共混质子交换膜的制备与性能[J].高分子材料科学与工程,2012,28(007):148-151.
 

服务与反馈:
文章下载】【加入收藏

《膜科学与技术》编辑部 地址:北京市朝阳区北三环东路19号蓝星大厦 邮政编码:100029 电话:010-64426130/64433466 传真:010-80485372邮箱:mkxyjs@163.com

京公网安备11011302000819号