壳聚糖/季氨化聚乙烯醇燃料电池阴离子交换膜的制备与表征
孟枫舒, 张宏翔, 陈乾, 庄佳瑗, 石华峰, 孙玉俊, 江献财*
福州大学石油化工学院,福州350116
Preparation and characterization of quaternized poly (vinyl alcohol)/chitosan composite for anion exchange membrane
Meng Fengshu, Zhang Hongxiang, Chen Qian, Zhuang Jiayuan, Shi Huafeng, Sun Yujun, Jiang Xiancai
School of Chemical Engineering,Fuzhou University,Fuzhou 350116
摘要 采用氯化铝水溶液为壳聚糖(CS)的溶剂,通过季氨化改性得到季氨化的聚乙烯醇(PVA)(QPVA),并通过溶液复合制得QPVA/CS复合薄膜,并研究了QPVA/CS复合薄膜作为碱性燃料电池隔膜的性能。通过傅里叶变换红外光谱、X射线衍射分析和力学性能测试,研究添加氯化铝和甘油对QPVA/CS复合薄膜性能的影响。通过吸水率研究了QPVA/CS复合薄膜的吸水性能,并对复合薄膜的离子传导率进行了测定。研究结果表明,同时添加氯化铝和甘油条件下,制得的QPVA/CS复合薄膜的性能较好,断裂伸长率为235%,离子传导率为2.028×10-2 S/cm。
关键词:
壳聚糖
聚乙烯醇
阴离子交换膜
六水合氯化铝
甘油
Abstract: AlCl3 ·6H2 O aqueous solution was used to dissolve chitosan,and quaternized poly(vinyl alcohol)/CS (QPVA/CS) membrane was prepared.The effect of AlCl3 ·6H2 O on the the hydrogen bonding interaction,crystalline and mechanical properties were studied by fourier transformed infrared spectra,X-ray diffraction measurement and tensile testing,respectively.The ion conductivity of QPVA/CS membrane was studied by AC impedance method.The results showed that both AlCl3 ·6H2 O and glycerol could form interaction with QPVA/CS.With the addition of AlCl3 ·6H2 O and glycerol,the crystallinity of QPVA/CS membrane decreased and the flexibility of QPVA/CS increased.With the addition of AlCl3 ·6H2 O and glycerol,the elongation at break of QPVA/CS could reach to 235% and the ion conductivity could reach to 2.028×10-2 S/cm.
Key words:
chitosan
poly(vinyl alcohol)
anion exchange membrane
AlCl3 ·6H2 O
glycerol
收稿日期: 2017-03-24
发布日期: 2018-09-18
期的出版日期: 2018-08-20
基金资助: 福州大学国家级大学生创新创业训练计划项目(201610386014)
通讯作者:
江献财(1985-),男,讲师,主要从事聚乙烯醇和壳聚糖复合材料制备工作。
作者简介: 孟枫舒(1997-),男,在读本科生,主要从事天然高分子材料改性研究工作。
引用本文:
孟枫舒, 张宏翔, 陈乾, 庄佳瑗, 石华峰, 孙玉俊, 江献财. 壳聚糖/季氨化聚乙烯醇燃料电池阴离子交换膜的制备与表征[J]. 化工新型材料, 2018, 46(8): 115-118.
Meng Fengshu, Zhang Hongxiang, Chen Qian, Zhuang Jiayuan, Shi Huafeng, Sun Yujun, Jiang Xiancai. Preparation and characterization of quaternized poly (vinyl alcohol)/chitosan composite for anion exchange membrane. New Chemical Materials, 2018, 46(8): 115-118.
链接本文:
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