Kazemi, H.; Fazli, A.; Ira, J.P.; Rodrigue, D. Recycled Tire Fibers used as Reinforcement for Recycled Polyethylene Composites. Fibers2023, 11, 74.
Kazemi, H.; Fazli, A.; Ira, J.P.; Rodrigue, D. Recycled Tire Fibers used as Reinforcement for Recycled Polyethylene Composites. Fibers 2023, 11, 74.
Kazemi, H.; Fazli, A.; Ira, J.P.; Rodrigue, D. Recycled Tire Fibers used as Reinforcement for Recycled Polyethylene Composites. Fibers2023, 11, 74.
Kazemi, H.; Fazli, A.; Ira, J.P.; Rodrigue, D. Recycled Tire Fibers used as Reinforcement for Recycled Polyethylene Composites. Fibers 2023, 11, 74.
Abstract
Recycled tire fibers (RTF) are currently one of the most abundant waste not being recovered due to several processing hurdles and the presence of high amounts of residual ground rubber particles (GR). Therefore, this study proposes a simple approach to separate most of rubber particles from fibers and to determine their rubber content using thermogravimetric analysis (TGA)/calcination. Afterwards, clean fiber (CF) and GR are used as fillers for recycled post-consumer low density polyethylene (rLDPE), and their effects on the physical properties are investigated. Accordingly, a series of composites with CF and GR is prepared at different filler concentrations (0-30%) via extrusion compounding before using compression molding and injection molding for comparison. In all cases, injection molding leads to higher strength and modulus, but lower elongation at break. The results show that incorporating 30 wt.% of CF into rLDPE yields a remarkable improvement in tensile strength (15%), tensile modulus (192%) and flexural modulus (142%). On the other hand, the incorporation of up to 30 wt.% of GR results in a reduction of both tensile strength and flexural modulus by 15%, confirming the critical role of the cleaning process for RTF in achieving the best results.
Chemistry and Materials Science, Polymers and Plastics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
