Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 112, Issue -, Pages 1-10Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2018.05.018
Keywords
Biocarbon; Irregular particle shape; Biocomposite; Particle-reinforcement
Funding
- Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA), Canada/University of Guelph-Bioeconomy for Industrial Uses Research Program Theme [030176]
- Agriculture and Agri-Food Canada [053407]
- Competitive Green Technologies through AgriInnovation Program [053407]
- Ontario Research Fund, Research Excellence Program
- Ontario Ministry of Research, Innovation and Science (MRIS) [052665, 052644, ORF-RE07]
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The effects of biocarbon particle size and shape on the thermo-mechanical properties of Nylon6/Polypropylene compatibilized blends were investigated at 25% loading. The biocarbon particles were milled to a size from similar to 7 mu m down to similar to 800 nm, in which the aspect ratio was reduced from similar to 5 to similar to 1. Corroboration of SEM and AFM of biocomposites illustrated a high biocarbon-matrix interaction and a reduction in the size of dispersed PP droplets after biocarbon addition. Morphological disparities between nano- and micro-sized biocarbon (porosity, particle shape) were correlated to thermo-mechanical properties of the biocomposites, particularly strength and thermal expansion, and supported by DMA experiments, 'theological investigation showed alignment in the shear direction for the widely distributed particles size at low frequencies and an unexpected plateau for all the biocomposites, attributed to the particle size and shape heterogeneities. The presence of porous biocarbon in any form showed no negative influence on the thermal stability of biocomposites.
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