Enhancement of graphite functionality in renewable polymer composite properties

Abdullah, Nur Munirah and Mohd Rus, Anika Zafiah and Abdullah, Mohammad Faiz Liew (2018) Enhancement of graphite functionality in renewable polymer composite properties. International Journal of Engineering & Technology, 7 (3.14). pp. 215-220. ISSN 2227-524X

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The preparation and characterization of composite thin films of renewable polymer graphite (PG) is disclosed. Thin films ~ 0.1 mm thick are prepared using a simple solution mixing with mass proportion of 2/1 (renewable monomer/ Methylene Diphenyl Diisocyanate, MDI), upon differ graphite content (PG0 , PG5 , PG10, PG15, PG20, PG25 and PG30) and drop casting at room temperature. The morphology-structure relations of renewable PG composites with respect to electrical conductivity were diagnosed using Optical microscope (OM), Fourier transform infra-red spectroscopy (FTIR) and Thermogravimetric analysis (TGA). The homogeneous random dispersion and strong interface between the graphite in the classical insulating renewable polymer matrix were observed. Thus resulting of enhancements in thermal stability with slight shift of decomposition temperature and better mechanical properties through the modulus and tensile strength increment up to ~440% and ~100% respectively. The result shows that it can simultaneously leads to renewable PG conductivity (σ) where the percolation threshold occurs at higher graphite content (PG20, PG25 and PG30) of 103 - 104 S/m. Thus, this non-petroleum based renewable polymer graphite composites have remarkably more to offer as conducting polymer composites material in multidisciplinary applications.

Item Type: Article
Uncontrolled Keywords: Renewable polymer graphite; interconnected interface; thermal stability; mechanical behavior; insulating-conductive
Subjects: T Technology > T Technology (General)
T Technology > TP Chemical technology > TP1080-1185 Polymers and polymer manufacture
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electronic Enngineering
Depositing User: UiTM Student Praktikal
Date Deposited: 09 Jan 2022 06:52
Last Modified: 09 Jan 2022 06:52
URI: http://eprints.uthm.edu.my/id/eprint/5409

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