Search results for: Ali Makke

1 A Pull-Out Fiber/Matrix Interface Characterization of Vegetal Fibers Reinforced Thermoplastic Polymer Composites, the Inﬂuence of the Processing Temperature

Authors: Duy Cuong Nguyen, Ali Makke, Guillaume Montay

Abstract:

This work presents an improved single ﬁber pull-out test for ﬁber/matrix interface characterization. This test has been used to study the Inter-Facial Shear Strength ‘IFSS’ of hemp ﬁbers reinforced polypropylene (PP). For this aim, the ﬁber diameter has been carefully measured using a tomography inspired method. The ﬁber section contour can then be approximated by a circle or a polygon. The results show that the IFSS is overestimated if the circular approximation is used. The Inﬂuence of the molding temperature on the IFSS has also been studied. We ﬁnd a molding temperature of 183°C leads to better interface properties. Above or below this temperature the interface strength is reduced.

Keywords: composite, hemp, interface, pull-out, processing, polypropylene, temperature

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