Nowrouzieh Shabram, Sinoimeri Artan, Dréan Jean-Yves, Frydrych Richard.
2006. Inter-fiber force in cotton sliver.
In : Proceedings of the Beltwide Cotton Conference 2006, January 3-6, 2006, San Antonio, Etats-Unis. NCC, The Cotton foundation
Résumé : The friction and cohesion forces are some of the most important parameters that affect the yarn spinnability and tenacity. A new and simply device is carried out in order to quantify the friction and cohesion forces during a quasi-static fiber slippage in a sliver. This device is composed of two identical little carriages; one of them is fixed whereas the second is moving on a linear guide. A piece of sliver is put down in the carriage channel in zero-gage position. The sliver is compressed with the upper carriage sides where two identical weights are loaded. A digital video camera records what is happening between the two clamps during the traction test. The results show that the force-displacement diagrams are very similar. At the beginning the force increases almost linearly with displacement, then it remains constant and, at a given displacement, where there are no more fiber clamped by both carriages simultaneously, the force decreases linearly. The parameters of this curve seem to be related to the inter-fiber friction and cohesion force.
Mots-clés Agrovoc : coton, fibre végétale, propriété physicochimique
Classification Agris : Q60 - Traitement des produits agricoles non alimentaires
Auteurs et affiliations
- Nowrouzieh Shabram, ENSITM (FRA)
- Sinoimeri Artan, ENSITM (FRA)
- Dréan Jean-Yves, ENSITM (FRA)
- Frydrych Richard, CIRAD-CA-UPR Qualité du coton (FRA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/533236/)
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