Surface Modification of Polyvinylidenefluoride-Trifluoroethylene Film Using Argon Gas Plasma

Abstract:

This study investigates the surface properties of plasma surface modified spin coated PVDF-TrFE (70/30) film using Atomic Force Microscopy (AFM), Water Contact Angle (WCA) and X-ray Photoelectron Spectroscopy (XPS). The surfaces of the spin coated PVDF-TrFE film were modified using 13.56 MHz rf Argon plasma. The exposure time of the charged particle PVDF-TrFE films were varied for 1, 3 and 5mins. Prior to modification, the average surface roughness obtained was 8.615nm, but upon modification, the surface roughness was found to increase to 12.466nm. The value of the contact angle of the modified film was reduced from 90^o to 43^o and the XPS analysis showed dehydrofluorination of PVDF-TrFE films surfaces_. The improved in surface roughness and the increased in wettability of the modified film, resulted in good biocompatibility of the modified PVDF-TrFE thin films. This phenomenon has created interest in researchers for developing functional polymer used for applications in areas such are biomedical, bio-analytical assays, textile and even food industry.

• Periodical: Advanced Materials Research (Volume 626)
• Pages: 317-323
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.626.317
• Online since: December 2012
• Authors: Rozana Mohd Dahan, Muhamad Naiman Sarip, Seong Ling Yap, Mohamad Hafiz Mohd Wahid, Adillah Nurashikin Arshad, Norlida Kamarulzaman, Dzaraini Kamarun
• Keywords: Plasma Surface Modification, PVDF-TrFE, Wettability, X-Ray Photoelectron Spectroscopy

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