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

By Narimane Mati-Baouche, H. D. Baynast, A. Lebert, Shengnan Sun, Carlos Javier Sacristan Lopez-Mingo, P. Leclaire, P. Michaud. 2014

171 citations recorded by the source corpus.

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 (κ) of 0.056 W m−1 K−1, a maximum stress (σmax) of 2 MPa and an acoustic coefficient of absorption (α) 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.

Subfields: Biomaterials, Materials Chemistry, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/7624b304ccdd15d11fb690710e1fedf6e17ab044

Citations in the corpus

• Sustainable thermal insulation biocomposites from rice husk, wheat husk, wood fibers and textile waste fibers: Elaboration and performances evaluation (2019, unknown): “K) is comparable with rice husk/ polyurethane composites (Buratti et al., 2018), co ff ee cha ff /poly-urethane composites (Buratti et al., 2018) and coconut husks insulation boards (Mati-Baouche et al., 2014).”