The continuous research of new functional materials combining both advanced properties and increased sustainability has dramatically risen up in the last decades. Instead of searching for new solutions, composites (formed by a combination of already present materials) are subject of different studies due to their capability of merging the advantages of components. Hence, chitosan, a biowaste-derived biopolymer, has been thermally-converted into chars by pyrolysis treatment. Subsequently, both chitosan and its char are introduced into cementitious matrix forming cement-based composites. The analysis of the mechanical properties of these materials evidenced that char-containing composites show an incipient fracture toughness capability, very appealing for possible structural applications.

Chitosan and its char as fillers in cement-base composites: A case study

Roberto Nisticò;Daniele Versaci;Pavlo Ivanchenko;Paola Benzi
2019

Abstract

The continuous research of new functional materials combining both advanced properties and increased sustainability has dramatically risen up in the last decades. Instead of searching for new solutions, composites (formed by a combination of already present materials) are subject of different studies due to their capability of merging the advantages of components. Hence, chitosan, a biowaste-derived biopolymer, has been thermally-converted into chars by pyrolysis treatment. Subsequently, both chitosan and its char are introduced into cementitious matrix forming cement-based composites. The analysis of the mechanical properties of these materials evidenced that char-containing composites show an incipient fracture toughness capability, very appealing for possible structural applications.
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Chitosan, Composites, Construction materials, Pyrolysis, Toughness
Roberto Nisticò, Luca Lavagna, Daniele Versaci, Pavlo Ivanchenko, Paola Benzi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1723142
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