Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 115, Issue -, Pages 104-111Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2018.09.016
Keywords
Biocomposite; Particle-reinforcement; Mechanical properties; Thermal properties
Funding
- Ontario research fund-research excellence (ORF-RE)
- natural sciences and engineering research council of Canada (NSERC)
- TOTAL North America
- FORD Canada
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Environmental friendlier polymer blends are targeted by the packaging and automotive industry at comparable or lower cost through the use of renewable resources. Non-wood soda (sulfur-free) lignin was blended with high density polyethylene (HDPE) at 10, 20 and 30% w/w at the mixing temperature of 150 degrees C which is approximately: 20 degrees C above the melting point of HDPE, 20 degrees C above softening temperature of lignin and 20 degrees C below degradation temperature of lignin. Addition of soda lignin to HDPE matrix at a proper processing temperature resulted in blends with improved tensile and flexural strength as well as the moduli (Young's and flexural) compared to the properties of virgin HDPE. Thermal studies showed that the melting temperature and degradation temperature of the blends were decreased by addition of lignin. Maleic anhydride-grafted-polyethylene (MAPE) was used as compatibilizer in the blends, however the mechanical properties of the blends were not improved by addition of MAPE.
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