Development of Coffee Biochar Filler for the Production of Electrical Conductive Reinforced Plastic
Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy
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Polymers 2019, 11(12), 1916; https://doi.org/10.3390/polym11121916
Received: 15 October 2019 / Revised: 16 November 2019 / Accepted: 18 November 2019 / Published: 21 November 2019
(This article belongs to the Special Issue Performance and Application of Novel Biocomposites)
In this work we focused our attention on an innovative use of food residual biomasses. In particular, we produced biochar from coffee waste and used it as filler in epoxy resin composites with the aim to increase their electrical properties. Electrical conductivity was studied for the biochar and biochar-based composite in function of pressure applied. The results obtained were compared with carbon black and carbon black composites. We demonstrated that, even if the coffee biochar had less conductivity compared with carbon black in powder form, it created composites with better conductivity in comparison with carbon black composites. In addition, composite mechanical properties were tested and they generally improved with respect to neat epoxy resin.
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Keywords:
electrical properties; mechanical properties; recycling; epoxy resin
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MDPI and ACS Style
Giorcelli, M.; Bartoli, M. Development of Coffee Biochar Filler for the Production of Electrical Conductive Reinforced Plastic. Polymers 2019, 11, 1916.
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