Kenaf reinforced biodegradable composite

Mechanical properties of environmentally friendly composite made of kenaf fibre and poly- l-lactic acid (PLLA) resin was investigated. Young's modulus (6.3 GPa) and the tensile strength (62 MPa) of the kenaf/PLLA composite (fibre content=70 vol.%) were comparable to those of traditional composi...

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Bibliographic Details
Published in:Composites science and technology 2003-07, Vol.63 (9), p.1281-1286
Main Authors: Nishino, Takashi, Hirao, Koichi, Kotera, Masaru, Nakamae, Katsuhiko, Inagaki, Hiroshi
Format: Article
Language:English
Subjects:
Applied sciences
B. Interface
B. Mechanical properties
Biodegradable composite
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Kenaf (Natural fibre)
Poly- l-lactic acid
Polymer industry, paints, wood
Technology of polymers
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Summary:Mechanical properties of environmentally friendly composite made of kenaf fibre and poly- l-lactic acid (PLLA) resin was investigated. Young's modulus (6.3 GPa) and the tensile strength (62 MPa) of the kenaf/PLLA composite (fibre content=70 vol.%) were comparable to those of traditional composites. These properties were higher than those of the kenaf sheet and the PLLA film themselves. This is considered to attribute to the strong interaction between the kenaf fibre and PLLA. In addition, the storage modulus of the composite remain unchanged up to the melting point of PLLA. The effects of the molecular weight of PLLA, the orientation of the kenaf fibres in the sheet on the mechanical properties of the composite were also investigated. It was found that kenaf fibre can be a good candidate for the reinforcement fibre of high performance biodegradable polymer composites.
ISSN:0266-3538
1879-1050
DOI:10.1016/S0266-3538(03)00099-X