Behavior of adhesion forces of the aqueous-based polychloroprene adhesive magnetically conditioned |
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Authors: | Edith M M Souza Wanderley da Costa Leonardo G A Silva Hélio Wiebeck |
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Affiliation: | 1. Departamento de Engenharia Metalúrgica e de Materiais da Escola Politécnica, USP-S?o Paulo, Braziledith.malateaux@usp.br;3. Departamento de Engenharia Metalúrgica e de Materiais da Escola Politécnica, USP-S?o Paulo, Brazil;4. Centro de Tecnologia das Radia??es-IPEN-CNEN/SP, S?o Paulo, Brazil |
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Abstract: | This research is an innovation proposal for magnetic conditioning of the aqueous-based polychloroprene contact adhesive with the purpose of increasing the adherence capacity between the adhesive and the substrate. Today, the aqueous-based polychloroprene contact adhesive presents an adhesion capacity variation between 1.15 and up to 2.75 kgf/cm2. On the other hand, the solvent-based polychloroprene adhesives support average tensions of shearing of 3.8 kgf/cm2. To promote an increase in adhesion to the aqueous-based polychloroprene contact adhesive, we formulated one adhesive using a nano-additive, carbon dioxide as catalyst, and a magnetic conditioning process before the phase of application on the substrates. The results obtained show an average increase of 292% in the shearing tension of the adhesive magnetically conditioned when compared with an adhesive of same formulation without the magnetic conditioning and when compared to the commercial aqueous-based polichloroprene adhesive, the increase reaches 122%. |
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Keywords: | Contact adhesives catalysis magnetic conditioning nano-additives polychloroprene |
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