NDLI: Hybrid Composites from Waste Materials

Content Provider	Springer Nature Link
Author	Ashori, Alireza
Copyright Year	2009
Abstract	Hybrid composites of thermoplastic biofiber reinforced with waste newspaper fiber (NF) and poplar wood flour (WF) were prepared. The weight ratio of the lignocellulosic materials to polymer was 30:70 (w:w). Polypropylene (PP) and maleic anhydride grafted polypropylene (MAPP) were also used as the polymer matrix and coupling agent, respectively. The mechanical properties, morphology and thermal properties were investigated. The obtained results showed that tensile and flexural modulus of the composites were significantly enhanced with addition of biofibers in both types (fiber and flour), as compared with pure PP. However, the increasing in WF content substantially reduced the tensile, flexural and impact modulus, but improved the thermal stability. This effect is explained by variations in fiber morphological properties and thermal degradation. Increasing fiber aspect ratio improved mechanical properties. The effect of fiber size on impact was minimal compared to the effects of fiber content. Scanning electron microscopy has shown that the composite, with coupling agent, promotes better fiber–matrix interaction. The largest improvement on the thermal stability of hybrid composites was achieved when WF was added more. In all cases, the degradation temperatures shifted to higher values after addition of MAPP. This work clearly showed that biofiber materials in both forms of fiber and flour could be effectively used as reinforcing elements in thermoplastic PP matrix.
Starting Page	65
Ending Page	70
Page Count	6
File Format	PDF
ISSN	15662543
Journal	Journal of Polymers and the Environment
Volume Number	18
Issue Number	1
e-ISSN	15728900
Language	English
Publisher	Springer US
Publisher Date	2009-12-22
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hybrid composite Biodegradable Mechanical properties Lignocellulosic fibers Waste materials Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Environmental Engineering Polymers and Plastics

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