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Preparation, microstructure regulation and permeability investigation of negative-charged hollow fiber membrane

Authors： WU Zhiguo1,2, YANG Jingkui3, QIN Shuhao3 , CUI Zhenyu1

Units： 1. School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China；2. Suez Water technologies (Shanghai) Co Ltd, Shanghai 200135, China; 3. Guizhou Material Industry Technology Research Institute, Guiyang 550014, China

KeyWords： Thermally induced phase separation; Polyvinylidene fluoride; Ultrafiltration; Microstructure regulation

ClassificationCode：TB34

year,volume(issue):pagination： 2021,41(6):1-9

Abstract：

In this work, polyvinylidene fluoride (PVDF) and styrene-co-maleic anhydride-Na (SMA-Na) were used to prepare PVDF/SMA-Na ultrafiltation membrane. The influence of SMA-Na on the membrane formation process，microstructure regulation, hydrophilicity and permeability was investigated. The results showed that with the increase of SMA-Na, the microstructure changed from network on spherulite to cellular pore, which indicated the non-dilute function of SMA-Na. In addition, the entanglement of segments between PVDF and SMA-Na and its deposition on both PVDF matrix and the inside of pore hindered the PVDF crystallization, decreased the thickness of skin-layer, and at the same time increased the density of skin-layer, charge and hydrophilicity. They all increased the permeability. When the mass ratio of PVDF/SMA-Na is 5/1, the pure water permeability reached 128.4 Lm-2h-1bar-1，the rejection of BSA is as high as 96.1% and permeability recovery rate is 84.2%.

Funds：

国家自然科学基金项目（21978213，21576209）。

AuthorIntro：

武志国（1989-），男，山西太原人，硕士，从事聚合物分离膜及染料废水处理研究

Reference：

[1] G.-d. Kang, Y.-m. Cao, Application and modification of poly(vinylidene fluoride) (PVDF) membranes – A review, Journal of Membrane Science[J]. 2014, 463: 145-165.
[2] D.-M. Wang, J.-Y. Lai, Recent advances in preparation and morphology control of polymeric membranes formed by nonsolvent induced phase separation, Current Opinion in Chemical Engineering[J]. 2013, 2:229-237.
[3] J.F. Kim, J.H. Kim, Y.M. Lee, , et al. Thermally induced phase separation and electrospinning methods for emerging membrane applications: A review, AIChE J[J]. 2016, 62: 461-490.
[4] M. Liu, S.H. Liu, Z.L. Xu, et al. Formation of microporous polymeric membranes via thermally induced phase separation: A review, Frontiers of Chemical Science and Engineering[J].2016, 10:57-75..
[5] M.E. Vanegas, R. Quijada, D. Serafini, Microporous membranes prepared via thermally induced phase separation from metallocenic syndiotactic polypropylenes, Polymer[J]. 2009, 50:2081-2086.
[6] L. Yan, J. Wang, Development of a new polymer membrane-PVB/PVDF blended membrane, Desalination [J]. 2011, 281:455–461.
[7] Ting Ma, Zhenyu Cui, Ying Wu, et al. Preparation of PVDF based blend microporous membranes for lithium ion batteries by thermally induced phase separation:Ⅰ. Effect of PMMA on the membrane formation process and the properties, Journal of Membrane Science[J].2013, 444: 213-222..
[8] Qiao Cheng, Zhenyu Cui, Jiangbo Li, et al. Preparation and performance of polymer electrolyte based on poly(vinylidene fluoride)/polysulfone blend membrane via thermally induced phase separation process for lithium ion battery, Journal of Power Sources[J]. 2014, 266: 401-413.
[9] Zhenyu Cui, Haobo Shi, Jinyue Ding, et al. Fabrication of poly (vinylidene fluoride) separator with better thermostability and electrochemical performance for lithium ion battery by blending polyester, Materials Letters[J]. 2018, 228:466–469..
[10] Zhiguo Wu, Zhenyu Cui, Tianyu Li, et al. Fabrication of PVDF-based blend membrane with a thin hydrophilic deposition layer and a network structure supporting layer via the thermally induced phase separation followed by non-solvent induced phase separation process, Applied Surface Science[J]. 2017, 419: 429-438.
[11] Zhenyu Cui, Wei Li, Haiyi Zeng, et al. Fabricating PVDF hollow fiber microfiltration membrane with a tenon-connection structure via the thermally induced phase separation process toenhance strength and permeability, European Polymer Journal[J].2019, 111: 49–62.
[12] Pengfei Zhang, Shang Xiang, Hao Wang, et al. Understanding the multiple functions of styrene-co-maleic anhydride in fabricating polyvinylidene fluoride hollow fiber membrane via coupled phase inversion process and its effect on surface infiltration behavior and membrane permeability, Journal of Membrane Science[J]. 2019, 590: 117269.
[13] Zhenyu Cui, Xiuxiu Tang, Wei Lin, et al. EVOH in situ fibrillation and its effect of strengthening, toughening and hydrophilic modification on PVDF hollow fiber microfiltration membrane via TIPS process, Journal of Materials Science[J], 2019,54(7): 5971–5987.
[14] Ye C, An Q, Wu J, et al. Nanofiltration membranes consisting of quaternized polyelectrolyte complex nanoparticles for heavy metal removal[J]. Chemical Engineering Journal, 2019, 359:994-1005

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