Effect of Hybrid Fillers on the Thermal Properties of UHMWPE/Chitosan-ZnO Composites

Abstract:

In this work, UHMWPE reinforced composites containing hybrid zinc oxide (ZnO) and chitosan particles were prepared via the hot compression technique. The effect of ZnO contents (10, 20, 30 wt.%) and chitosan contents (1, 2, 3 wt.%) on the thermal properties of UHMWPE/ZnO and UHMWPE/Chitosan-ZnO reinforced composites were successfully investigated using DSC and TGA analysis, respectively. Based on DSC results, both UHMWPE/ZnO and hybrid composites did not record significant changes in the melting temperatures (T_m). The heat fusion enthalpy (Hm) and degree of crystallinity (X_c) of hybrid composites were found to be higher than UHMWPE/ZnO composites. As the TGA results shown, hybrid composites were also found to have higher thermal stability than UHMWPE/ZnO composites at 10 % and 50 % weight loss level. Overall, the UHMWPE/ZnO + 3 wt.% Chitosan hybrid reinforced composite recorded comparable mechanical properties and better thermal properties than neat UHMWPE.

• Periodical: Applied Mechanics and Materials (Volumes 754-755)
• Pages: 71-76
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.754-755.71
• Online since: April 2015
• Authors: MOHD FIRDAUS OMAR, Lu Yew Wei, Mohd Mustafa Al Bakri Abdullah, Hussin Kamarudin
• Keywords: Dynamic Scanning Calorimetry (DSC), Hybrid Fillers, Thermal Properties, Thermogravimetric Analysis (TGA)

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