Improving the adhesion strength of polymers: effect of surface treatments

Journal Article (2020)
Author(s)

Marouen Hamdi (TU Delft - Structural Integrity & Composites)

Mohamed Saleh (TU Delft - Structural Integrity & Composites)

Hans Poulis (TU Delft - Adhesion Institute)

Research Group
Structural Integrity & Composites
Copyright
© 2020 M. Hamdi, M. Saleh, J.A. Poulis
DOI related publication
https://doi.org/10.1080/01694243.2020.1732750
More Info
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Publication Year
2020
Language
English
Copyright
© 2020 M. Hamdi, M. Saleh, J.A. Poulis
Research Group
Structural Integrity & Composites
Bibliographical Note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.@en
Issue number
17
Volume number
34
Pages (from-to)
1853-1870
Reuse Rights

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Abstract

To improve their adhesion strength, polymeric surfaces are usually modified through different treatments. This study investigates the effect of mechanical, chemical, and energetic treatments on the bonding strength of ethylene propylene diene methylene (EPDM), polyvinyl chloride (PVC), and acrylonitrile butadiene styrene (ABS) materials. Three adhesives based on different chemical compositions, namely silicone, polyurethane, and modified-silane (MS) polymer, were considered. Results show that the effect of the applied treatments on the adhesion strength of EPDM surfaces is insignificant. Only a slight improvement is obtained in the case of polyurethane-based adhesive, while the failure modes remained adhesive. As for PVC, most treatments were effective in the case of the silicone-based adhesive, especially grit blasting, primer, and UV/ozone treatments. Only UV/ozone treatment improved the adhesion strength and altered the failure mechanisms of this material when polyurethane and MS-based adhesives are used. The adhesion of ABS increased and the failure modes changed from adhesive to cohesive for most treatments. Particularly, a significant improvement is obtained when primer coating and UV/ozone radiation are applied. This comparative study paves the way for the design of polymeric joints with highly enhanced adhesion performance.

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