Mechanical properties of agglomerated cork stoppers for sparkling wines: Influence of adhesive and cork particle size

Autor: Kevin Crouvisier-Urion, Thomas Karbowiak, Régis D. Gougeon, Jean-Pierre Bellat
Přispěvatelé: Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] (LICB), Université de Bourgogne (UB)-Université de Technologie de Belfort-Montbeliard (UTBM)-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire de la Vigne et du Vin 'Jules Guyot' (IUVV Jules Guyot), Université de Bourgogne (UB), Prats Bonany, Relvas, French Federation of Cork (FFL), French National Association of Research and Technology (ANRT), Regional Council of Bourgogne - Franche Comte, Fonds Europeens de DEveloppement Regional (FEDER)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Composite Structures
Composite Structures, Elsevier, 2018, 203, pp.789-796. ⟨10.1016/j.compstruct.2018.06.116⟩
ISSN: 0263-8223
DOI: 10.1016/j.compstruct.2018.06.116⟩
Popis: International audience; The mechanics of agglomerated cork is a key issue for application to sparkling wine stoppers. Industrial samples were produced by varying the chemical nature of polyurethane adhesives (aliphatic and aromatic), the adhesive concentration and the size of the cork particles (macro and microagglomerated). Uniaxial compression and traction were performed to fully understand the material behavior when submitted to stress. It is noteworthy that agglomerated cork is less rigid than natural cork. This implies that the agglomeration process increases the material elasticity. Moreover, this elasticity is mainly driven by the chemical nature of the adhesive, in the case of macroagglomerated cork. However, it appears that the use of smaller particle sizes (< 3 mm) reduces, to a larger extent, the agglomerated cork rigidity. To conclude, this work gives a full view on the impact of the formulation parameters (particle size, adhesive nature and concentration) on the mechanical properties of agglomerated cork.
Databáze: OpenAIRE