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On the adhesion between polymers and metals Disclosure Number: IPCOM000147451D
Publication Date: 2007-Mar-16
Document File: 1 page(s) / 11K

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On the adhesion between polymers and metals

    In many applications a connection between metals and polymers is needed. Adhering metal onto polymer is difficult and commonly used in many applications.

    Adhesion can be reached by melting the polymer at the interface between the metal and the polymer. After cooling down, the adhesion can reach values close to the cohesive strength of the polymer. This paper describes the use of induction to rapidly heat the metal and therefore melt the polymer only at the interface. Such technique is able to be non- destructive for the bulk of the polymer and effects only the contact area. For production processes it will help to go towards more complex shapes with higher demands on adhesive strength.

    By rapidly heating the metal by induction, locally the polymer surface in contact with this metal will melt. After cooling down a very strong bond will be created. Firstly, the heating is only applied on the metal parts, whereby the cooling rate will be fast. Secondly, the heating is applied locally; the degradation of the polymer bulk will be prevented.

    The technique is to apply induction heating on the object, which consists of polymer and metal parts. The latter will heat up as a result of the applied induction heating. The temperature of the metal parts should reach values of at least the melting temperature of the polymer, which should be adhered to the metal. The time of this procedu...