Natural Weathering of Polypropylene and Waste Tire Dust (PP/WTD) Blends |
| |
Authors: | H Ismail M Awang |
| |
Institution: | (1) School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, 14300 Penang, Malaysia |
| |
Abstract: | Three series of polypropylene and waste tire dust (PP/WTD) blends using three different WTD sizes were prepared, compression-molded
and cut into dumbbells. The specimens were exposed to natural weathering in the northern part of Malaysia for a period of
6 months. The results show that at the same blend composition, blends with fine WTD size exhibit higher mechanical properties
than that of blends with coarse WTD after exposure to natural weathering. Regardless of WTD size, the retention of tensile
strength and elongation at break, Eb increases with the increase in WTD content. From the exposed surface morphology, it is apparent that the blends with fine
WTD and WTD-rich blends were able to withstand weathering better than blends with coarse WTD and PP-rich blends. The DSC thermograms
suggest that the overall drop in melting temperature (Tm) of the exposed blends decreases as the WTD content increases. |
| |
Keywords: | Natural weathering Polypropylene Waste tire dust Mechanical properties Physical properties |
本文献已被 SpringerLink 等数据库收录! |
|