Friction of PA6 and peek composites in the light of their surface characteristics

Zsidai, László and Szakál, Zoltán (2014) Friction of PA6 and peek composites in the light of their surface characteristics. MECHANICAL ENGINEERING LETTERS: R AND D : RESEARCH AND DEVELOPMENT, 11. pp. 151-163. ISSN 2060-3789

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Abstract

Our present work is connected to a broad tribology research project with different polymer composites on PA6, POM, PET and PEEK matrix and targeted to create a detailed map of tribological features. Measuring the hardness and surface energy of the tribology tested materials gave some new approach about friction results. The small-scale laboratory friction tests were carried out with an alternating (reciprocating) cylinder/plate model system, which is able to measure the dynamic and the static friction force on-line during the sliding process. This special test system opens up new possibilities for understanding the phenomena of friction. In the article we give a short introduction from the surface energy and the shore D hardness test methods also. The research results plot a connection between the surface (polar and adhesion components) energy and the friction (static and dynamic) behaviour. Furthermore the experienced difference between the static and dynamic friction coefficients and its time function will offer a new approach during evaluation of the stick-slip behaviour of PA6 and PEEK composite materials.

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