独立気泡,連続気泡ポリエチレンフォームにおける動的粘弾性測定による動的弾性率の評価

概要

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In this study, the dynamic modulus of some close-celled and open-celled polyethylene foams was determined by the dynamic viscoelastic measurements in tensile and compression modes. As a result, the dynamic compression modulus of some close-celled polyethylene foams is found to evaluate compression characteristics of foam as well as other dynamic properties, and those of some open-celled polyethylene foams is found not to evaluate. The dynamic compression modulus of some close-celled polyethylene foams have been clarified to correlate with the dynamic tensile modulus positively. In the Youngs modulus of the close-celled polyethylene foams, the calculated value following from the two-dimensional model with six-angular pores analyzed by finite element method (FEM) using the plane stress element, was found to be in a reasonable agreement with the experimental data of the dynamic tensile modulus.
2000-03-15