Journal of Functional Polymers

18, No.3, Sept.2005, p.430-3

Chinese

INFLUENCE OF SOLVENTS ON THE PVDF MEMBRANE PROPERTIES

Lu Yin; Zhang Lin; Ren Yuan-long; Wang Ji-zhong

Ningbo,University; Zhejiang,University

The action of solvent on a PVDF membrane prepared by the phase separation method was examined. The phase separation data were measured by the cloud point method for a 0.12 mole fraction solution of PVDF with solvents of DMSO, DMF, DMA, NMP and TMP, respectively. The advanced velocity of the phase separation front line when the casting solution was contacted with water was measured by the microscopic photo method. The pore size of membrane was measured by the bulb point method. The results showed that DMSO, TMP and DMA were good solvents for casting PVDF membrane by the phase separation method. 9 refs.

CHINA

Accession no.956354