浸入凝胶法聚合物膜形成机理的研究现状  

The formation mechanism of polymeric membrane by immersion precipitation processes-The state of the art

作　　者：李战胜[1] 李恕广[1] 江成璋[1] 

机构地区：[1]中科院大连化学物理研究所,大连116023

出　　处：《膜科学与技术》2002年第2期29-36,共8页Membrane Science and Technology

摘　　要：从热力学、传质动力学、相分离机制和固化过程几方面综述了浸入凝胶过程中聚合物膜形成机理的研究现状 .指出浸入凝胶成膜过程是传质交换和由传质交换引发的相分离以及其后的固化过程之间相互竞争的复杂非平衡过程 。The mechanism for membrane formation by immersion precipitation processes was reviewed based on the thermodynamics,mass transfer dynamics,mechanism of phase separation and gelation process.The immersion precipitation is a complex non-equilibrium process,in which mass transfer,phase separation and gelation process conpetes with each other.The membrane structure is determined by the competition among those processes.

关 键 词：浸入凝胶法 聚合物膜 形成机理 研究现状 分离膜 

分 类 号：TQ317[化学工程—高聚物工业]