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Article Dans Une Revue Industrial Crops and Products Année : 2014

Mechanical, thermal and acoustical characterizations of an insulating bio-based composite made from sunflower stalks particles and chitosan

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This study has for objective the determination of thermal, mechanical and acoustical properties of insulating bio-based composite made with chitosan and sunflower's stalks particles. An experimental design was established to find the size grading of particles, the ratio chitosan/sunflower particles and the stress of compaction influencing the thermal and mechanical properties. Composites with a thermal conductivity $(\kappa)$ of 0.056 W/m/K, a maximum stress $(\sigma_{\text{max}})$ of 2 MPa and an acoustic coefficient of absorption $(\alpha)$ of 0.2 were obtained with a ratio of chitosan of 4.3% (w/w) and a size grading of particles higher to 3 mm. These mechanical and thermal performances are competitive with those of other insulating bio-based materials available on the market.
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hal-01323684 , version 1 (31-05-2016)

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Narimane Mati-Baouche, Hélène de Baynast, André Lebert, Shengnan Sun, Carlos Javier Sacristán López-Mingo, et al.. Mechanical, thermal and acoustical characterizations of an insulating bio-based composite made from sunflower stalks particles and chitosan. Industrial Crops and Products, 2014, 58, pp.244-250. ⟨10.1016/j.indcrop.2014.04.022⟩. ⟨hal-01323684⟩
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