Bicontinuous and cellular structure design of PVDF membranes by using binary solvents for the membrane distillation process.

ABSTRACT: With excellent permeability as the foremost requirement for membranes used in the membrane distillation (MD) process, the thermally induced phase separation (TIPS) method is a promising approach for preparing porous membranes with a bicontinuous structure, which is identified as the best morphology for permeation. The structure design of membranes prepared by the TIPS process can be strengthened when a binary solvent is introduced in the casting solution. In this work, the determination principles for binary solvent were explicated in detail, and further employed for the selection of binary solvent for the fabrication of polyvinylidene fluoride (PVDF) membrane with different structures. By the TIPS approach, the porous PVDF hollow fiber membranes with cellular structure were generated by g

SUBMITTER: Wang Z 

PROVIDER: S-EPMC9082393 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature