Effect of Tungsten concentration on the thermal properties of Ethylene Propylene Diene Monomer (EPDM) composite

Document Type : Original Article

Authors

1 Science and Technology Center of Excellency, National Authority for Military Production, Cairo, Egypt

2 Polymer Department, Central Metallurgical Research and Development Institute, Cairo, Egypt

3 Mechanical Department, Faculty of Engineering, Assiut University, Assiut

Abstract

This study investigates the tungsten concentration effect of Ethylene Propylene Diene Monomer [EPDM] composite on thermal properties, which is synthesized as anti-degradation nanocomposite. The composite was fabricated via ball milling. Structural, morphological and thermal properties of the fabricated nanocomposites were examined by different characterization techniques such as X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and thermal analysis (TGA) & (DMTA).
It was found that the weight losses due to heat degradation decreased gradually due to the increase in concentration of Tungsten nanoparticles, which confirms the improved thermal stability of EPDM matrix. the onset temperature and the maximum decomposition temperature increase with the increase of tungsten ratio to reaches the maximum at 70% tungsten loading. Conferring to this, the thermal properties and flame resistance of the composite was enhanced with the increase in tungsten concentration due to the high melting temperature of tungsten enforcement and their high latent heat coefficient. And the overall thermal properties were enhanced with the increase in tungsten percentage in the composites.

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