PLA Based Biopolymer Reinforced with Natural Fibre: A Review |
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Authors: | Tapasi Mukherjee Nhol Kao |
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Institution: | (1) School of Civil Environmental and Chemical Engineering, RMIT University, GPO Box 2476, Melbourne, VIC, 3001, Australia |
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Abstract: | In recent years renewed interest on the development of biopolymers, based on constituents obtained from natural resources
is gaining much attention. Natural fibres such as kenaf, hemp, flax, jute, bamboo, elephant grass and sisal based polymer
with thermoplastic and thermoset matrices offer reductions in weight, cost and carbon dioxide emission, less reliance on foreign
oil resources and recyclability. Reinforced biopolymer with natural fibres is the future of “green composites” addressing
many sustainability issues. Among the available biopolymer, PLA (polylactide) is the only natural resource polymer produced
at a large scale of over 140,000 tonnes per year. Natural fibre reinforced PLA based biocomposites are widely investigated
by the polymer scientists in the last decade to compete with non renewable petroleum based products. The type of fibre used
plays an important role in fibre/matrix adhesion and thereby affects the mechanical performance of the biocomposites. The
aim of this review is to investigate the effects of processing methods, fibre length, fibre orientation, fibre-volume fraction,
and fibre-surface treatment on the fibre/matrix adhesion and mechanical properties of natural-fibre-reinforced PLA composites.
Although much work has been performed to engineer the design of such superior biocomposites, the information is scattered
in nature. A comprehensive review on the major technical considerations undertaken to prepare such biocomposites over the
last decade is investigated to address the feasibility of wide scale industrial acceptance to such biocomposites. A brief
review on the available natural fibres and biopolymer is also given for a comparative study. |
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