Adhesion Tendency of Polymers to Hard Coatings

Author:

Rebelo de Figueiredo M.1,Bergmann C.1,Ganser C.23,Teichert C.2,Kukla C.4,Mitterer C.1

Affiliation:

1. Department of Physical Metallurgy and Materials Testing, Montanuniversität Leoben, Leoben, Austria

2. Institute of Physics, Montanuniversität Leoben, Leoben, Austria

3. Christian Doppler Laboratory for Surface Chemical and Physical Fundamentals of Paper Strength, Graz University of Technology, Graz, Austria

4. Industrial Liaison Department, Montanuniversität Leoben, Leoben, Austria

Abstract

Abstract The adhesion tendency of the polymers polyoxymethylene, polyamide 6.6 and polyether ether ketone against hard coatings to protect molds in polymer processing was evaluated by a combination of tribological tests, investigations of wear tracks and measurements of the coatings' surface energies. It was found that a low surface roughness and a low surface energy of the coating are beneficial to reduce friction and adhesion tendency. Among the coating materials investigated, CrN seems to be the most promising candidate for the protection of molds for polymer processing.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Industrial and Manufacturing Engineering,Polymers and Plastics,General Chemical Engineering

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