Nanocomposites for Improved Physical Durability of Porous PVDF Membranes

Membranes

Chi Yan Lai¹  Andrew Groth¹  Stephen Gray¹ 

[1] Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, P.O. Box 14428, Melbourne, Victoria 8001, Australia;

关键词: poly(vinylidene fluoride);    nanoclay;    nanocomposite membranes;    microfiltration;    ultrafiltration;    abrasion resistance;    physical durability;   

DOI  :  10.3390/membranes4010055

来源: mdpi

【 摘 要 】

Current commercial polymer membranes have shown high performance and durability in water treatment, converting poor quality waters to higher quality suitable for drinking, agriculture and recycling. However, to extend the treatment into more challenging water sources containing abrasive particles, micro and ultrafiltration membranes with enhanced physical durability are highly desirable. This review summarises the current limits of the existing polymeric membranes to treat harsh water sources, followed by the development of nanocomposite poly(vinylidene fluoride) (PVDF) membranes for improved physical durability. Various types of nanofillers including nanoparticles, carbon nanotubes (CNT) and nanoclays were evaluated for their effect on flux, fouling resistance, mechanical strength and abrasion resistance on PVDF membranes. The mechanisms of abrasive wear and how the more durable materials provide resistance was also explored.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.