Regulating surface wettability of PEO/PLLA composite electrospun nanofibrous membrane for liquid phase filtration

Lalada Poonsit; Jackapon Sunthornvarabhas; Ito Akira; Amornrat Lertworasirikul

doi:10.1117/12.2054262

2 June 2014 Regulating surface wettability of PEO/PLLA composite electrospun nanofibrous membrane for liquid phase filtration

Lalada Poonsit, Jackapon Sunthornvarabhas, Ito Akira, Amornrat Lertworasirikul

Author Affiliations +

Proceedings Volume 9234, International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics; 923407 (2014) https://doi.org/10.1117/12.2054262
Event: International Conference on Experimental Mechanics 2013 and the Twelfth Asian Conference on Experimental Mechanics, 2013, Bangkok, Thailand

Abstract

The PEO/PLLA composite nanofibrous membranes were prepared by electrospinning technique for liquid phase filtration application. In this experiment, PLLA homopolymer and PLLA-PEG copolymer were added into PEO solution to increase hydrophobicity of nanofibrous membrane surface. PLLA content was fixed at 30% by weight of total solid. Morphology and fiber diameter were characterized from scanning electron microscope (SEM) images. Fiber diameters of PEO/PLLA homopolymer and PEO/PLLA-PEG copolymer are 582±78 nm and 657±167 nm, respectively. Surface wettability property of PEO/PLLA composite nanofibrous membranes were measured by apparent water contact angle. The apparent water contact angle value of PEO/PLLA is 120°±2°, while PEO/PEG-b-PLLA is 99°±7°. The surface wettability of PEO/PLLA composite nanofibrous membranes can be modified by varying type of polymer.

Citation Download Citation

Lalada Poonsit, Jackapon Sunthornvarabhas, Ito Akira, and Amornrat Lertworasirikul "Regulating surface wettability of PEO/PLLA composite electrospun nanofibrous membrane for liquid phase filtration", Proc. SPIE 9234, International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics, 923407 (2 June 2014); https://doi.org/10.1117/12.2054262

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