棉纺织技术2024，Vol.52Issue(12)：1-6,6.
壳聚糖改性聚苯硫醚碱性水电解隔膜的制备与性能研究
Preparation and performance study of chitosan-modified polyphenylene sulfide diaphragm for alkaline water electrolysis
摘要
Abstract
To investigate the impact of fabric weave and hydrophilic modifications on the performance of polyphenylene sulfide(PPS)fabric diaphragms for alkaline water electrolysis,three types of PPS fabrics including plain fabric,twill fabric,and satin fabric were prepared and hydrophilically modified using chitosan.The properties of these fabric diaphragms before and after modification were compared including water contact angle,surface resistivity,air tightness and electrolysis performance.The results showed that the water contact angles of the three fabric diaphragms were all above 120° before modification and reduced to below 90° after modification,which indicated the transition from hydrophobicity to hydrophilicity.After modification,a significant decrease in surface resistivity was observed in the three types of fabric diaphragms.Moreover,the air tightness of the modified diaphragms were significantly enhanced,the plain fabric diaphragm air tightness was reached up to 4 018 Pa,and 3 087 Pa for the twill fabric diaphragm,both of them could satisfy industrial standards.In operational tests using a miniature electrolyzer,the current density of the PPS plain fabric diaphragm after modification was close to 400 mA/cm2 at 2.3 V,which was significantly higher than that of the unmodified diaphragm and a commercial PPS fabric diaphragm.It is concluded that the PPS plain fabric diaphragm exhibited the best comprehensive performance.关键词
聚苯硫醚/碱性水电解/隔膜/壳聚糖/亲水改性Key words
polyphenylene sulfide/alkaline water electrolysis/diaphragm/chitosan/hydrophilic modification分类
轻工业引用本文复制引用
王志杰,杨光,马含冰,孙颖,庄旭品..壳聚糖改性聚苯硫醚碱性水电解隔膜的制备与性能研究[J].棉纺织技术,2024,52(12):1-6,6.基金项目
国家自然科学基金项目(52273059) （52273059）
