Detection of Polytetrafluoroethylene Coating Deposition in Carbon Composite Paper Surface PEMFC Using FTIR-ATR

Abstract:

Spectroscopy Fourier Transform Infrared (FTIR) – Attenuated Total Reflectance (ATR) used to study the surface of polymeric materials on polymeric substrates using a sensitive technique for chemical profiling, study of reflection spectroscopy, and a non-invasive. In this study we will investigate of Polytetrafluoroethylene (PTFE) deposition in carbon composite paper without damaging its structure by FTIR-ATR. Carbon composite paper was prepared by mixing the carbon material from coconut fiber and polymer binder in xylen as solvent, casted on glass substrate, and then rolled to make a sheet. Coating process was done by dipped the carbon composite paper in the PTFE suspension with different content of 10 wt%, 20 wt% and 30 wt% for 30 minutes and dried at room temperature for one night and heated at 150°C for 30 minutes, and finally heated at 350°C for 30 minutes to melt the PTFE. All samples were analyzed by using FTIR-ATR and SEM-EDS. Deposition of PTFE with different content in carbon composite papers could be observed by FTIR-ATR. The peaks located at near 1205 cm^-1 and 1154cm^-1 with different intensity for each PTFE contents. FTIR-ATR could be used as a pre-detection method of PTFE deposition in carbon composite paper before using SEM-EDS, because FTIR-ATR would be reflected at the highly reflective surface.

• Periodical: Materials Science Forum (Volume 880)
• Pages: 114-118
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.880.114
• Online since: November 2016
• Authors: Dita Rama Insiyanda*, Fredina Destyorini, Nanik Indayaningsih
• Keywords: Carbon Composite Paper, Coconut Fiber, FTIR-ATR, Polymer Binder, Polymer Exchange Membrane Fuel Cell, PTFE Content

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