Preparation of PEGylated poly(vinylidene fluoride) porous membranes with improved antifouling property

2019 ◽  
Vol 7 (1) ◽  
pp. 014002
Author(s):  
Huixia Guo ◽  
Chen Li ◽  
Lijing Zhu ◽  
Yongxin Wang ◽  
Zhixiang Zeng ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Porous Membranes ◽  
Antifouling Property ◽  
Poly Vinylidene Fluoride

Preparation and Characterization of Poly(vinylidene) Fluoride Membranes Reinforced by Modified Nano-SiO2 Particles

2014 ◽  
Vol 789 ◽  
pp. 201-204
Author(s):  
Ai Wen Qin ◽  
Xiang Li ◽  
Bo Mou Ma ◽  
Xin Zhen Zhao ◽  
Chun Yi Liu ◽  
...  
Keyword(s):  
Pore Size ◽  
Vinylidene Fluoride ◽  
Cell Structure ◽  
Membrane Surface ◽  
Pure Water ◽  
Water Flux ◽  
Cross Sectional ◽  
Antifouling Property ◽  
Poly Vinylidene Fluoride ◽  
Mechanical Performances

Poly (vinylidene fluoride) (PVDF) hybrid membranes reinforced by hydrophilic nanoSiO2 particles were fabricated from PVDF/N-dimethylacetamide (DMAc)/γ-butyrolactone (γ-BL) system via thermally induced phase separation (TIPS) process. Surface and cross-sectional morphology of membranes were characterized by scanning electron microscope (SEM). The properties such as permeability, mechanical performances and antifouling property were also determined. The results showed that the pore size of membrane surface became smaller, while cross-sectional morphology was changed from bicontinuous structure to cell structure, the pore size became larger and majorities of closed pores became open with the addition of hydrophilic nanoSiO2 particles in the system. Compared with pure membrane, pure water flux of hybrid membrane increased by 30.3%, i.e. from 290 to 378 L/(m2·h·0.1MPa), antifouling property increased from 63.1% to 80.2%. Meanwhile, tensile strength and elongation at break increased by 70.6% and124%, respectively.

Enhancing the antifouling property of poly(vinylidene fluoride)/SiO2 hybrid membrane through TIPS method

2014 ◽  
Vol 49 (22) ◽  
pp. 7797-7808 ◽  
Author(s):  
Aiwen Qin ◽  
Xueliang Wu ◽  
Bomou Ma ◽  
Xinzhen Zhao ◽  
Chunju He
Keyword(s):  
Vinylidene Fluoride ◽  
Hybrid Membrane ◽  
Antifouling Property ◽  
Poly Vinylidene Fluoride

Porous Membranes of Montmorillonite/Poly(vinylidene fluoride-trifluorethylene) for Li-Ion Battery Separators

2012 ◽  
Vol 24 (11) ◽  
pp. 2147-2156 ◽  
Author(s):  
J. Nunes-Pereira ◽  
A. C. Lopes ◽  
C. M. Costa ◽  
R. Leones ◽  
M. M. Silva ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Porous Membranes ◽  
Li Ion Battery ◽  
Poly Vinylidene Fluoride ◽  
Li Ion

Hyperbranched poly(ether amine)@poly(vinylidene fluoride) (hPEA@PVDF) porous membranes for selective adsorption and molecular filtration of hydrophilic dyes

2017 ◽  
Vol 5 (21) ◽  
pp. 10470-10479 ◽  
Author(s):  
Kejia Ji ◽  
Hongjie Xu ◽  
Xiaodong Ma ◽  
Jie Yin ◽  
Xuesong Jiang
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Vinylidene Fluoride ◽  
Selective Adsorption ◽  
Porous Membranes ◽  
High Flux ◽  
Flux Rate ◽  
Hyperbranched Poly ◽  
Poly Vinylidene Fluoride

hPEA@PVDF membranes can separate dyes in aqueous solution through molecular filtration with a high flux rate and large adsorption capacity.

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