Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 604, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.memsci.2020.118089
Keywords
Poly(vinylidene fluoride) (PVDF); Thermally induced phase separation (TIPS); Air bath; Permeability; Tensile strength
Categories
Funding
- Science and Technology Commission of Shanghai Municipality [14520502900]
- Shanghai Engineering Research Center of Green Energy Chemical Engineering [18DZ2254200]
- International Joint Laboratory on Resource Chemistry (IJLRC)
Ask authors/readers for more resources
Permeability and mechanical strength normally present an opposite trend for separation membranes. There is a trade-off line of permeability vs. tensile strength for the prepared poly(vinylidene fluoride) (PVDF) membranes via thermally induced phase separation (TIPS) method. In this work, TIPS-prepared PVDF membranes were fabricated with water (PVDFT-water) and air (PVDFT-air) as quenching bath for comparatively studying. PVDFT-air membranes present larger average pore size, higher permeability and better mechanical strength than those of PVDFT-water membranes due to the lower cooling rate of air bath. It is wonderful that all PVDFT-air membranes can break though the trade-off line of permeability vs. tensile strength of TIPS-prepared PVDF membranes. The optimal membrane (M-A30) shows superior performance, such as ultrahigh water flux of 3275 L m(-2) h(-1).bar(-1) and tensile strength of 5.7 MPa. Additionally, this research provides a feasible method to regulate the morphology, pore size and permeability of TIPS-prepared PVDF membranes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available