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- Title
Facile Fabrication of Superwetting PVDF Membrane for Highly Efficient Oil/Water Separation.
- Authors
Yang, Jinzhu; Sun, Wei; Ju, Junping; Tan, Yeqiang; Yuan, Hua
- Abstract
A novel superhydrophilic and underwater superoleophobic modified PVDF membrane for oil/water separation was fabricated through a modified blending approach. Pluronic F127 and amphiphilic copolymer P (MMA-AA) were directly blended with PVDF as a hydrophilic polymeric additive to prepare membranes via phase inversion induced by immersion precipitation. Then, the as-prepared microfiltration membranes were annealed at 160 °C for a short time and quenched to room temperature. The resultant membranes exhibited contact angles of hexane larger than 150° no matter whether in an acidic or basic environment. For 1, 2-dichloroethane droplets, the membrane surface showed a change from superoleophilic to superoleophobic under water with aqueous solutions with pH values from 2 to 13. This as-prepared membrane has good mechanical strength and can then be applied for oil and water mixture separation.
- Subjects
PETROLEUM; SEPARATION (Technology); CONTACT angle; AQUEOUS solutions; MICROFILTRATION; SUPERABSORBENT polymers
- Publication
Polymers (20734360), 2023, Vol 15, Issue 2, p327
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym15020327