Mechanical, thermal and acoustical characterizations of an insulating bio-based composite made from sunflower stalks particles and chitosan - Archive ouverte HAL Access content directly
Journal Articles Industrial Crops and Products Year : 2014

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

Abstract

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.
Fichier principal
Vignette du fichier
2014MB.pdf (253.14 Ko) Télécharger le fichier
Origin Files produced by the author(s)
Loading...

Dates and versions

hal-01323684 , version 1 (31-05-2016)

Licence

Identifiers

Cite

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⟩
148 View
1033 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More