Influence of various chemical treatments on the composition and structure of hemp fibres

Marianne Le Troëdec (1) , David Sedan (1) , Claire Peyratout (1) , Jean-Pierre Bonnet (1) , Agnès Smith (1) , René Guinebretière (2) , Vincent Gloaguen (3) , Pierre Krausz (3)

1 GEMH - Groupe d'Etudes des Matériaux Hétérogènes
2 Axe 3 : organisation structurale multiéchelle des matériaux
3 LCSN - Laboratoire de Chimie des Substances Naturelles

The impact of several chemical treatments, including NaOH, polyethyleneimine, ethylenediaminetetraacetic acid, Ca(OH)2 and CaCl2 onto the composition and structure of hemp fibres was evaluated using differential thermal analysis, scanning electron microscopy, X-ray diffraction and Fourier transform infrared spectroscopy. Comparison of results obtained with the last two techniques allows us to quantify the impact of the chemical treatments onto the crystallinity index.

Mots clés: A. Natural fibres; D. Surface analysis; E. Surface treatment

Domaines: Chimie inorganique

Marianne Le Troëdec, David Sedan, Claire Peyratout, Jean-Pierre Bonnet, Agnès Smith, et al.. Influence of various chemical treatments on the composition and structure of hemp fibres. Composites Part A: Applied Science and Manufacturing, 2008, 39 (3), pp.514-522. ⟨10.1016/j.compositesa.2007.12.001⟩. ⟨hal-00267797⟩