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Article

Catalytic Activity of Oxidized Carbon Waste Ashes for the Crosslinking of Epoxy Resins

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Dipartimento di Ingegneria dell’Innovazione Università del Salento, 73100 Lecce, Italy
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C.M.D. Costruzioni Motori Diesel S.p.A., Via Pacinotti, 2, 81020 San Nicola La Strada (CE), Italy
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Dipartimento di Chimica e Biologia, Università di Salerno, 84084 Fisciano (SA), Italy
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Department of Mechanical Engineering, Campus de Nayer, 2860 KU Leuven, Belgium
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(6), 1011; https://doi.org/10.3390/polym11061011
Received: 10 May 2019 / Revised: 3 June 2019 / Accepted: 5 June 2019 / Published: 7 June 2019
In this study, two different fillers were prepared from carbon-based ashes, produced from the wooden biomass of a pyro-gasification plant, and starting from lignocellulosic waste. The first type was obtained by dry ball-milling (DBA), while the second one was prepared by oxidation in H2O2 of the dry ball-milled ashes (oDBA). The characterization of the fillers included wide-angle x-ray diffraction (WAXD), thermogravimetric, and Fourier-transform infrared spectroscopy (FTIR) analysis. The DBA and oDBA fillers were then tested as possible catalysts for the crosslinking reaction of a diglycidyl ether of bisphenol A (DGEBA) with a diamine. The cure reaction was studied by means of rheometry and differential scanning calorimetry (DSC). The oDBA filler exhibits both a higher catalytic activity on the epoxide–amine reaction than the DBA sample and improved mechanical properties and glass transition temperature. The results obtained indicate, hence, the potential improvement brought by the addition of carbon-based waste ashes, which allow both increasing the flexural properties and the glass transition temperature of the epoxy resin and reducing the curing time, acting as a catalyst for the crosslinking reaction of the epoxy resin. View Full-Text
Keywords: carbon-based ashes; gel time; differential scanning calorimetry carbon-based ashes; gel time; differential scanning calorimetry
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MDPI and ACS Style

Stasi, E.; Giuri, A.; La Villetta, M.; Cirillo, D.; Guerra, G.; Maffezzoli, A.; Ferraris, E.; Esposito Corcione, C. Catalytic Activity of Oxidized Carbon Waste Ashes for the Crosslinking of Epoxy Resins. Polymers 2019, 11, 1011. https://doi.org/10.3390/polym11061011

AMA Style

Stasi E, Giuri A, La Villetta M, Cirillo D, Guerra G, Maffezzoli A, Ferraris E, Esposito Corcione C. Catalytic Activity of Oxidized Carbon Waste Ashes for the Crosslinking of Epoxy Resins. Polymers. 2019; 11(6):1011. https://doi.org/10.3390/polym11061011

Chicago/Turabian Style

Stasi, Enrica, Antonella Giuri, Maurizio La Villetta, Domenico Cirillo, Gaetano Guerra, Alfonso Maffezzoli, Eleonora Ferraris, and Carola Esposito Corcione. 2019. "Catalytic Activity of Oxidized Carbon Waste Ashes for the Crosslinking of Epoxy Resins" Polymers 11, no. 6: 1011. https://doi.org/10.3390/polym11061011

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