The Effect of Low Temperature Plasma Treatment Condition on the Peel Strength of EVA Foam for Shoe Mid-sole

저온플라즈마 처리조건이 신발 중창용 EVA 발포체의 접착력에 미치는 영향

  • Park, C.C. (Department of Chemical Engineering, Dongseo University) ;
  • Park, C.Y. (Department of Polymer Engineering, Pukyong National University)
  • Published : 2000.12.31


The surfaces of injection and pressure-molded sheets of poly(ethylene-covulylacetate)(EVA) foams used for shoe mid-sole were treated with low temperature plasma to improve adhesion with a water-based polyurethane adhesives. Several experimental variables were considered, such as radio frequency power, treating time, type of gas. gas flow, and distance between electrode and sample. The modificated surface by plasma treatment were characterized using contact angle meter, scanning electron microscopy(SEM), universal testing machine(UTM). Adhesion was tested by T-peel tests of treated EVA foams/polyurethane adhesive joints. The treatment in the low temperature plasma produced a noticeable decrease in contact angle. The peel strength of EVA foams treated with plasma was increased with plasma treating time, and gas flow.