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Article Dans Une Revue Journal of Non-Newtonian Fluid Mechanics Année : 2007

Molecular design to eliminate sharkskin defect for linear polymers

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Ahmed Allal
Bruno Vergnes

Résumé

In a preceding work, we have established relationships between the conditions of sharkskin onset and the rheological and molecular properties of the extruded polymer. Based on this approach, we propose now to define a molecular criterion, able to discriminate the ability of linear polymers to give rise to sharkskin in extrusion. The validity of this criterion is experimentally verified for a certain number of polymers, using data taken in the literature.

Dates et versions

hal-00510572 , version 1 (19-08-2010)

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Ahmed Allal, Bruno Vergnes. Molecular design to eliminate sharkskin defect for linear polymers. Journal of Non-Newtonian Fluid Mechanics, 2007, 146 (1-3), pp.45-50. ⟨10.1016/j.jnnfm.2006.12.003⟩. ⟨hal-00510572⟩
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