Treatment of EVA with corona discharge to improve its adhesion to polychloroprene adhesive
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Título: | Treatment of EVA with corona discharge to improve its adhesion to polychloroprene adhesive |
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Autor/es: | Martínez García, Asunción | Sánchez Reche, Ana | Gisbert Soler, Santiago | Cepeda Jiménez, Carmen María | Torregrosa Maciá, Rosa | Martín-Martínez, José Miguel |
Grupo/s de investigación o GITE: | Laboratorio de Adhesión y Adhesivos |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Instituto Tecnológico del Juguete |
Palabras clave: | Corona discharge | Surface treatment | EVA | Polychloroprene adhesive | Contact angle measurements | ATR-IR spectroscopy | SEM | T-peel strength |
Área/s de conocimiento: | Química Inorgánica |
Fecha de creación: | 2002 |
Fecha de publicación: | 2003 |
Editor: | VSP |
Cita bibliográfica: | MARTÍNEZ GARCÍA, Asunción, et al. "Treatment of EVA with corona discharge to improve its adhesion to polychloroprene adhesive". Journal of Adhesion Science and Technology. Vol. 17, No. 1 (2003). ISSN 0169-4243, pp. 47-65 |
Resumen: | Ethylene vinyl acetate (EVA) material containing 20 wt% vinyl acetate (EVA20) was treated with corona discharge to improve its adhesion to polychloroprene adhesive. Several experimental variables in the corona discharge treatment of EVA20 were considered: corona energy, type of electrode, and number of consecutive treatments. Advancing contact angle measurements (water, 25±C) showed an increase in the wettability of EVA20 after treatment with corona discharge, which corresponds to an increase in the O/C ratio on the treated surface. The higher the corona energy (i.e. the higher discharge power and longer treatment times), the greater the degree of surface oxidation. Peel strength values of the joints produced with EVA20 using a polychloroprene adhesive containing 5 wt% isocyanate increased from 1.5 kN/m (as-received EVA20) to 4.3 kN/m (corona-treated EVA20). A mixed (adhesional C cohesive in EVA20) locus of failure was obtained in all adhesive joints produced with corona discharge-treatedEVA20. Finally, the number of consecutive corona discharge treatments and the surface area of the electrode (spherical versus hook-shaped electrode) did not greatly influence the adhesion of EVA20 to polychloroprene adhesive. |
URI: | http://hdl.handle.net/10045/2656 |
ISSN: | 0169-4243 |
DOI: | 10.1163/15685610360472439 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Aparece en las colecciones: | INV - LAA - Artículos de Revistas |
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JAdhSciTech_17_1_47_65_2003.pdf | 751,37 kB | Adobe PDF | Abrir Vista previa | |
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