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EnglishA new and ecofriendly chemical approach uses inexpensive waterglass solutions in order to promote the formation of a silica-based coating on hemp fabrics; this green coating is able to act as a thermal shield and to protect the latter from heat sources. Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR_FTIR) and Nuclear Magnetic Resonance (NMR) confirm the formation of –C–O–Si– covalent bonds between the coating and the cellulosic substrate. The waterglass treatment improves the fire behavior of hemp fabric/epoxy composites, also in combination with ammonium polyphosphate, and favors a remarkable decrease of the heat release rate, total heat release, total smoke release and specific extinction area (respectively by 83%, 35%, 45% and 44%) as compared to untreated hemp/epoxy composites, favoring the formation of a very stable char, as also assessed by Thermogravimetric Analysis (TGA).
A fire retardant strategy for hemp fabric/epoxy composites / Bifulco, Aurelio; Durante, Massimo; Malucelli, Giulio; Branda, Francesco. - ELETTRONICO. - (2016), pp. 72-72. ((Intervento presentato al convegno Merck Young Chemists Symposium tenutosi a Roma nel 13-15 Novembre 2017.
| Titolo: | A fire retardant strategy for hemp fabric/epoxy composites | |
| Autori: | ||
| Data di pubblicazione: | 2016 | |
| Abstract: | A new and ecofriendly chemical approach uses inexpensive waterglass solutions in order to promote... the formation of a silica-based coating on hemp fabrics; this green coating is able to act as a thermal shield and to protect the latter from heat sources. Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR_FTIR) and Nuclear Magnetic Resonance (NMR) confirm the formation of –C–O–Si– covalent bonds between the coating and the cellulosic substrate. The waterglass treatment improves the fire behavior of hemp fabric/epoxy composites, also in combination with ammonium polyphosphate, and favors a remarkable decrease of the heat release rate, total heat release, total smoke release and specific extinction area (respectively by 83%, 35%, 45% and 44%) as compared to untreated hemp/epoxy composites, favoring the formation of a very stable char, as also assessed by Thermogravimetric Analysis (TGA). | |
| ISBN: | 978-88-86208-89-5 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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