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Composite micromechanics of flax fibres and poly(L-lactic acid) microdroplets.
[Thesis]. Manchester, UK: The University of Manchester; 2010.
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Abstract
The use of Raman spectroscopy as a tool to monitor the deformation micromechanics of flax fibre/poly(L-lactic acid) (PLLA) model composites is presented in this research work. It is shown that a stress profile can be obtained from the shift in the peak position of the Raman band initially located at 1095^-1 through a PLLA microdroplet on a flax fibre at elevated strain. These stress profiles micromechanics of the flax/PLLA composite are theoretically interpreted and fitted using a fourth order polynomial. The interfacial shear stress between the fibre and resin is then compared to values obtained using a microbond test.
Keyword(s)
Composite Micromechanics; Flax fibre; Microdroplet; PLLA; Poly lactic acid; Raman Spectroscopy; natural fibre