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Mechanical properties of self-setting composites: influence of the carboxymethylcellulose content and hydration state

Jacquart, Sylvaine and Poquillon, Dominique and Dechambre, Gérard and Cazalbou, Sophie and Rey, Christian and Combes, Christèle Mechanical properties of self-setting composites: influence of the carboxymethylcellulose content and hydration state. (2016) Journal of Materials Science, 51 (9). 4296-4305. ISSN 0022-2461

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Official URL: https://link.springer.com/article/10.1007%2Fs10853-016-9739-4

Abstract

The impact of the carboxymethylcellulose (CMC) content on the mechanical properties of calcium phosphate–calcium carbonate–CMC composite cements for bone substitution was investigated. The relevance of the compressive test conditions (wet or dried composite cements) is discussed and models are proposed to better understand the mechanisms involved in the mechanical properties of the composite materials. Based on a modellisation using the Voigt model for dried composite cements, we show that a minimum of CMC content of around 10–20 % is needed to enhance the mechanical properties of the dried composite materials (up to 86 MPa for the composite including 50 wt% CMC) through the formation of a mineral–organic entangled network. The compressive strength of the wet samples is low (\3 MPa) but the gain observed in the dried composites is encouraging and might be extrapolated to wet conditions if we were to use a less hydrophilic polysaccharide

Item Type:Article
Additional Information:Thanks to Springer Verlag editor. The original PDF of the article can be found at Thermochimica Acta website : https://link.springer.com/article/10.1007%2Fs10853-016-9739-4
HAL Id:hal-01638293
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Christele COMBES
Deposited On:20 Nov 2017 08:35

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