Preparation and Filtration Performance of P34HB Ultrafiltration Membranes Based on Nonsolvent-Induced Phase Separation Method

被引：0

作者：

Zeng R. ^{[1
,2
]}

Zhong W. ^{[1
]}

Ou X. ^{[1
]}

Xu R. ^{[1
]}

Lei C. ^{[1
]}

Wang F. ^{[2
]}

Chen D. ^{[3
]}

机构：

[1] Guangdong Engineering Laboratory of Energy Storage Materials and Devices, School of Materials and Energy, Guangdong University of Technology, Guangzhou

[2] Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou

[3] Hegen Polymer (Guangdong) Co. Ltd., Foshan

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2023年 / 39卷 / 10期

关键词：

non- solvent induced phase transition; poly-; 3-; hydroxybutyrate-; co-; 4-; hydroxybutyrate; sponge pore structure; ultrafiltration membrane;

D O I：

10.16865/j.cnki.1000-7555.2023.0209

中图分类号：

学科分类号：

摘要：

As a fully biodegradable polymer, the development of poly- 3- hydroxybutyrate- co- 4- hydroxybutyrate (P34HB) porous membranes will undoubtedly expand its application area. In this paper, P34HB ultrafiltration membranes were prepared by non-solvent induced phase separation(NIPS) method. The relationship between the casting solution, porous structure and properties was explored by introducing polyethylene glycols(PEGs) with the molecular weight of 400 and 8000, respectively. The results show that the membranes exhibit sponge- like structures. The membrane anti-pollution performance is improved with the addition of PEGs, among which the membranes made with adding 3.3% PEG400 show the best performance, maintaining a high retention performance of humic acid of 89%. The addition of a small amount of PEG400 facilitates the improvement of hydrophilicity of the membranes, thus improving the resistance to contamination by hydrophobic contaminants (humic acid) and ultimately maintaining a stable flux during the 11 h filtration process. © 2023 Chengdu University of Science and Technology. All rights reserved.

引用

页码：20 / 28

页数：8

共 14 条

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