亚砜基纤维素膜制备及SO_2渗透机理研究  

Preparation for cellulose membrane modified by sulfoxide and study on mechanism of SO_2 permeation of modified cellulose membrane

作　　者：刘振峰[1] 曹义鸣[1] 吴江[1] 袁权[1] 

机构地区：[1]中国科学院大连化学物理研究所,大连116023

出　　处：《膜科学与技术》2004年第3期1-3,9,共4页Membrane Science and Technology

基　　金：中国科学院大连化学物理研究所科研创新基金(K2001B1)

摘　　要：采用苯基乙烯基亚砜对纤维素膜进行化学改性,制备了亚砜基纤维素膜,并测试了其SO2气体渗透性能;观察到该膜对SO2的渗透系数随气体压力增大而减小,符合双吸附-双迁移模型.A cellulose membrane modified by phenyl vinyl sulfoxide was prepared. The SO_2 permeability of the modified-cellulose membrane was studied, and it is found that the SO_2 permeability of the membrane decreases with the increasing of SO_2 pressure, which is followed the dual sorption and diffusion mechanism.

关 键 词：纤维素膜 制备 S02渗透 渗透机理 乙烯基亚砜 双吸附-双迁移机理 

分 类 号：X701[环境科学与工程—环境工程]