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Open AccessArticle

Trifunctional Epoxy Resin Composites Modified by Soluble Electrospun Veils: Effect on the Viscoelastic and Morphological Properties

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Department of Civil Engineering and Architecture, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
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Italian Consortium for Materials Science and Technology Reseacch Unit Catania, Viale Andrea Doria 6, 95125 Catania, Italy
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Department of Chemical Science, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
*
Author to whom correspondence should be addressed.
Materials 2018, 11(3), 405; https://doi.org/10.3390/ma11030405
Received: 27 January 2018 / Revised: 27 February 2018 / Accepted: 6 March 2018 / Published: 9 March 2018
(This article belongs to the Section Advanced Composites)
Electrospun veils from copolyethersulfones (coPES) were prepared as soluble interlaminar veils for carbon fiber/epoxy composites. Neat, resin samples were impregnated into coPES veils with unmodified resin, while dry carbon fabrics were covered with electrospun veils and then infused with the unmodified epoxy resin to prepare reinforced laminates. The thermoplastic content varied from 10 wt% to 20 wt%. TGAP epoxy monomer showed improved and fast dissolution for all the temperatures tested. The unreinforced samples were cured first at 180 °C for 2 h and then were post-cured at 220 °C for 3 h. These sample showed a high dependence on the curing cycle. Carbon reinforced samples showed significant differences compared to the neat resin samples in terms of both viscoelastic and morphological properties. View Full-Text
Keywords: composites; toughening; electrospinning composites; toughening; electrospinning
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MDPI and ACS Style

Ognibene, G.; Mannino, S.; Fragalà, M.E.; Cicala, G. Trifunctional Epoxy Resin Composites Modified by Soluble Electrospun Veils: Effect on the Viscoelastic and Morphological Properties. Materials 2018, 11, 405.

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