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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5555

Title: Effect of amphiphilic coupling agent on heat flow and dielectric properties of flax – polypropylene composites
Authors: John, MJ
Tlili, R
Anandjiwala, RD
Boudenne, A
Ibos, L
Keywords: Polymer matrix composites
Fibres
Electrical properties
Thermal properties
Compression moulding
Issue Date: Mar-2012
Publisher: Elsevier
Citation: John, MJ, Tlili, R, Anandjiwala, RD et al. 2012. Effect of amphiphilic coupling agent on heat flow and dielectric properties of flax – polypropylene composites. Composites Part B: Engineering, vol. 43(2), pp 526-532
Series/Report no.: Workflow;8001
Abstract: The study on heat transport in composites is of fundamental importance in engineering design and for tailoring thermal and mechanical behaviour of materials. In this study, the thermal conductivity and thermal diffusivity of flax reinforced polypropylene (PP) composites were determined at room temperature. Chemical modification in the form of a biodegradable zein coating was applied to the flax nonwovens. The effect of fibre loading and chemical modification on the thermo-physical properties was investigated. Dielectric permittivity studies were also evaluated and the dielectric constant of fibre reinforced composites was found to be higher than that of PP. The heat flow and crystallinity effects of the composites were also determined by differential scanning calorimetric (DSC) studies. Zein modification of the flax fibres resulted in a decrease of thermal conductivity and diffusivity which was attributed to a decrease in velocity and mean free path of phonons due to increase in interfacial adhesion.
Description: Copyright: Elsevier. This is the pre print version of the work. The definitive version is published in Composites Part B: Engineering, vol. 43(2), pp 526-532
URI: http://www.sciencedirect.com/science/article/pii/S1359836811004859
http://hdl.handle.net/10204/5555
ISSN: 1359-8368
Appears in Collections:Polymers and composites
General science, engineering & technology

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