膜科学与技术

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Effect of PPBES support membrane thickness on water vapor permeance of thin film composite membrane

Authors： WANG Danhui, ZHANG Shouhai, PAN Yuxi, WANG Zhaoqi, LIU Zeyuan, XU Shugang, JIAN Xigao

Units： State Key Laboratory of Fine Chemicals, Liaoning High Performance Polymer Engineering Research Center, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China

KeyWords： sulfonated poly(phthalazinone ether ketone); support membrane; thickness; composite membrane; water vapor

ClassificationCode：

year,volume(issue):pagination： 2023,43(1):37-44

Abstract：

Copoly(phthalazinone biphenyl ether sulfone) (PPBES) ultrafiltration support membranes with different thickness were prepared through non-solvent induced phase separation (NIPS) method. When the thickness increased from 53 μm to 260 μm, the contact angle, mean pore diameter, porosity and rejection of membranes increased, while the water flux decreased. Then the thin film composite (TFC) membranes with sulfonated poly(phthalazinone ether ketone) containing pendant phenyl moieties (SPPEK-P) as the selective layer and PPBES as the support membrane were prepared by casting method. The TFC membranes with different thickness were characterized by SEM and FT-IR. The effect of PPBES support membrane thickness on water vapor permeance and water/N2 selectivity of TFC membranes were investigated. The results showed that when the thickness of membranes increased from 53 μm to 260 μm, water vapor permeance decreased from 2244 GPU to 1033 GPU, and water/N2 selectivity decreased from 445 to 288.

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AuthorIntro：

王丹慧（1990-），女，辽宁省锦州市人，博士，从事磺化聚芳醚除湿复合膜的研究。

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