Author： Vilay Vannaladsaysy
Publisher： Taylor & Francis Ltd
ISSN： 0360-2559
Source： Polymer-Plastics Technology and Engineering, Vol.52, Iss.8, 2013-06, pp. : 768-773
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Abstract
Biodegradable polymer blends of poly(L-lactic acid) (PLLA) and poly(-caprolactone) (PCL) with the addition of 2 phr lysine triisocyanate (LTI) were investigated using the Fourier transform infrared (FT-IR) spectroscopy, field-emission electron scanning microscope (FE-SEM), and mode I fracture testing technique. It was found that the addition of LTI dramatically improved the phase-separation morphology of the PLLA/PCL blends, hence increase the mode I fracture properties. The FT-IR analysis suggested that LTI acted as a compatibilizer by inducing secondary interaction between the NCO groups of LTI with the OH groups of PLLA and PCL.
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