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Epoxy/glass fibres composites for civil applications: Comparison between thermal and microwave crosslinking routes

Fiber-reinforced polymers (FRPs) have gained a growing interest for civil applications mainly for their lightness, corrosion resistance and high specific mechanical properties especially in terms of stiffness and strength. In this work, epoxy/glass fibres composite formulations, prepared by thermal and microwave assisted curing routes, are systematically characterized by thermal and mechanical tests. In particular the thermal curing is performed at room temperature and at 100 °C while the microwave conditions are set at 1500 W for 10 min. Calorimetric measurements demonstrate that these processing conditions allow to prepare samples with comparable crosslinking degree. The time and cost-saving microwave approach gives rise to cured FRPs with higher flexural stiffness but, expectedly, characterized by a network with a structure more inhomogeneous with respect to thermal crosslinked ones.

» Author: F. Colangelo, P. Russo, F. Cimino, R. Cioffi, I. Farina, F. Fraternali, L. Feo

» Reference: Composites Part B: Engineering, Volume 126

» Publication Date: 01/10/2017

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This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° [609203].

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