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Licensed Unlicensed Requires Authentication Published by De Gruyter May 27, 2013

Effect of Surface Coatings on Wall Slip of LLDPE

  • S. G. Hatzikiriakos , C. W. Stewart and J. M. Dealy


The polymer-metal interface in a sliding plate rheometer was modified by applying three fluoropolymer coatings to the plates in order to examine their effect on the wall slip behavior of a linear low density polyethylene. All three coating materials increased the slip velocity markedly. Furthermore, it was found that the critical shear stress for the onset of slip scales well with the work of adhesion of the interface, suggesting that slip is the result of adhesive failure at the interface.

* Mail address: Prof. Dr. J. M. Dealy, Department of Chemical Engineering, McGill University, 3480 University Street, Montreal, Quebec, Canada H3A 2A7.

Received: 1992-3-20
Accepted: 1992-6-19
Published Online: 2013-05-27
Published in Print: 1993-03-01

© 1993, Carl Hanser Verlag, Munich

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