Influence of the Particle Size of CaCO 3 on the Adhesion of Filled EVA Materials

Abstract A surface treatment with corona discharge was used to improve the adhesion properties of ethylene vinyl acetate copolymer (EVA) containing small amounts of four CaCO 3 with different particle size. The nature of the surface modifications produced by the corona discharge treatment and the ad...

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Published inMacromolecular symposia. Vol. 221; no. 1; pp. 23 - 32
Main Authors Martínez‐García, Asunción, Sánchez‐Reche, Ana, Cepeda‐Jiménez, Carmen M., Martín‐Martínez, José Miguel
Format Journal Article
LanguageEnglish
Published 01.01.2005
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Summary:Abstract A surface treatment with corona discharge was used to improve the adhesion properties of ethylene vinyl acetate copolymer (EVA) containing small amounts of four CaCO 3 with different particle size. The nature of the surface modifications produced by the corona discharge treatment and the adhesion to a polychloroprene adhesive were assessed. Treatment of CaCO 3 filled EVA with corona discharge produced a decrease in water contact angle value, irrelevant to the different particle size of the calcium carbonates. The corona discharge treatment created C‐O and C=O moieties on the EVA surface and also increased the peel strength, more markedly as the CaCO 3 particle size increased. In general, a mixed (adhesion + cohesive in the EVA) failure in the filled EVA material was produced (assessed by IR‐ATR spectroscopy and SEM micrographs of the failed surfaces), but the failure was more cohesive in the EVA containing higher particle size CaCO 3 . The durability of the joints was also studied.
ISSN:1022-1360
1521-3900
DOI:10.1002/masy.200550303