A comparative study of the thermo-mechanical properties of polylactide/cellulose nanocrystal nanocomposites obtained by two surface compatibilization strategies

Hajar Faraj (1) , Cyrille Sollogoub (2) , Alain Guinault (2) , Matthieu Gervais (2) , Julien Bras (3) , Hanène Salmi-Mani (4) , Philippe Roger (4) , Manon Le Gars (3) , Sandra Domenek (1)

1 SayFood - Paris-Saclay Food and Bioproduct Engineering
2 PIMM - Laboratoire Procédés et Ingénierie en Mécanique et Matériaux
3 LGP2 - Laboratoire Génie des procédés papetiers
4 ICMMO - Institut de Chimie Moléculaire et des Matériaux d'Orsay

Nanocomposites of poly(lactide) (PLA) and cellulose nanocrystal (CNC) were fabricated using two different types of covalently grafted surface compatibilizers, namely fatty acids (lauric or stearic acid) and poly(glycidyl methacrylate) (PGMA) bearing reactive epoxy end-groups. Temperature-Modulated DSC analysis informed on weak attractive interaction of PLA and CNC-g-lauric acid and weak plasticizing of CNC-g-stearic acid. Despite that a homogenous

Keywords: PLA; nanocellulose; surface compatibilization; mechanical properties; surface interaction; percolation

Domains: Chemical Sciences; Material chemistry; Polymers

Hajar Faraj, Cyrille Sollogoub, Alain Guinault, Matthieu Gervais, Julien Bras, et al.. A comparative study of the thermo-mechanical properties of polylactide/cellulose nanocrystal nanocomposites obtained by two surface compatibilization strategies. Materials Today Communications, 2021, 29, pp.102907. ⟨10.1016/j.mtcomm.2021.102907⟩. ⟨hal-03412635⟩