Authors - Renukaradya V, Kumar P K Abstract - Ethylene and vinyl acetate or EVA is a co-polymer used as a substitute for a lot of materials. EVA is a versatile material and it has a lot of applications ranging from electronics, healthcare, footwear, building applications etc. It is mainly used in sport shoes due to its property to absorb shock impact and insulation properties. In addition, EVA is very cost-friendly, produces no odor, and light in weight material. But with overuse of it, the cellular structure chang-es and can affect the shoes' quality and insulation properties. In addition to the cellular structure, the air molecules present in it also collapse. This paper focus-es on the bonding properties of EVA at different temperatures and its dielectric properties under different operating and manufacturing conditions. The upper, bottom, and sides of EVA shoes are exposed to high voltage till the breakdown. The experimentation was done at Electrical HV laboratory on the university campus where a 100kV HVAC testing system is available. This paper presents the tabulated results on the dielectric strength of EVA shoes under varying operating conditions. Additionally, it examines the bonding properties of EVA shoes at different manufacturing temperatures, aiming to predict their lifespan, quality, and finish. The results of these studies are thoroughly discussed within the document.
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