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Gdańsk University of Technology

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Investigation of polyurethane elastomer–steel joints using glass lacquer as an adhesive agent

This article describes an innovative method of coupling polyurethane elastomer (based on polyurethane glycolysate) with constructional steel, by implementation of a Glaspur®—glass lacquer containing latent polyurethanes and monosilane adhesion promoters. The commonly applied coupling agent is Cilbond® 45SF glue or its derivatives. Additionally, glycolysate was synthesised from polyurethane waste and 1,3-propylene glycol in 6:1 proportion. Results of examination confirm the usefulness of the above-mentioned glass lacquer for preparing laminar polyurethane–steel elements. Strength tests unequivocally present higher tear resistance of elements prepared with lacquer than couplings with Cilbond.

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