杨凤林
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壳聚糖/无纺布复合膜的制备及其耐污染性能研究
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Indexed by:期刊论文

Date of Publication:2009-10-31

Journal:高校化学工程学报

Included Journals:EI、PKU、ISTIC、CSCD、Scopus

Volume:23

Issue:5

Page Number:774-779

ISSN No.:1003-9015

Key Words:聚丙烯无纺布;壳聚糖;内表面涂覆;抗污染

Abstract:采用内表面涂覆法,制备天然高分子壳聚糖与聚丙烯无纺布的复合膜.环境扫描电子显微镜观察发现,壳聚糖/无纺布复合膜的形态结构变化较小.衰减全反射-傅立叶变换红外光谱分析表明膜表面引入了-OH和-NH2.复合膜表面的亲水性明显提高,水动态接触角从基膜的95°降至改性后的33.4(.通过考察膜的清水通量和阻力及MBR运行出水的粒径分布,分析基膜及复合膜的渗透和截留性能,表明复合膜的渗透能力和截留能力比基膜均有提高.对复合膜的抗污染性能进行了分析,结果表明复合膜表面BSA的静态吸附量降低了96.5%,在MBR中持续运行60小时后,纯水通量降低率比无纺布基膜低24.66%,通量在水洗和化学清洗后的恢复率比基膜分别高38.76%和35.78%,而污染后的比通量是基膜的1.85倍.表明无纺布膜在经过壳聚糖改性后,抗污染能力明显增强.

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Gender:Male

Alma Mater:大连工学院

Degree:Master's Degree

School/Department:环境学院

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