The pHsensitive colloidal and chemical structure of tannins from barks of maritime pine in water.

Coralie Motillon , Charlene Schmitt , Bruno Grassl (1) , Abdel Khoukh (1) , Virginie Pellerin (1) , Arnaud Uhart (2) , Jean-Charles Dupin (1) , Fatima Charrier (1) , Antonio Pizzi , Ahmed Allal (1)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux
2 IPREM - Institut pluridisciplinaire de recherche sur l'environnement et les matériaux

In order to reduce formaldehyde emissions from wood panels resulting from their incorporation as adhesives, new, environmentally sustainable tannin-based adhesives were developed. The tannin was extd. from the bark of the maritime pine (Pinus pinaster). Exts. were characterized by 13C NMR spectroscopy., IR attenuated total reflectance-Fourier transform IR anal. (ATR-FTIR), XPS, Asym. Flow Field-Flow Fractionation (AF4), at. force microscopy (AFM), rheol. anal. and gas chromatog. (GC) to clarify its colloidal structure, functionality and rheol. behavior for adhesive applications.

Mots clés: maritime pine water tannin wood adhesive chem structure rheol

Domaines: Chimie

Coralie Motillon, Charlene Schmitt, Bruno Grassl, Abdel Khoukh, Virginie Pellerin, et al.. The pHsensitive colloidal and chemical structure of tannins from barks of maritime pine in water.. Journal of Colloid Science and Biotechnology, 2014, 3, pp.343-350. ⟨10.1166/jcsb.2014.1110⟩. ⟨hal-01617284⟩