SLIPPAGE AT A POLYMER-POLYMER INTERFACE - ENTANGLEMENTS AND ASSOCIATED FRICTION

Authors
AJDARI A
Citation
A. Ajdari, SLIPPAGE AT A POLYMER-POLYMER INTERFACE - ENTANGLEMENTS AND ASSOCIATED FRICTION, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 317(9), 1993, pp. 1159-1163
Citations number
6
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre → ACNP
ISSN journal
07644450
Volume
317
Issue
9
Year of publication
1993
Pages
1159 - 1163
Database
ISI
SICI code
0764-4450(1993)317:9<1159:SAAPI->2.0.ZU;2-Y
Abstract
The tangential friction during the slippage at an interface between tw o molten weakly incompatible polymers strongly depends on the entangle ments between the two melts. In a dynamical picture we derive the dens ity of entanglements when the slippage velocity is V. For V larger tha n a threshold value V, this density decreases with V, leading to a de crease of the shear stress at the interface.