Abstract
AbstractHerein, ethylene‐vinyl acetate copolymer/styrene ethylene butylene styrene (EVA/SEBS) blend foam with wide effective damping temperature range (ΔT) was prepared via supercritical nitrogen. The influence of the ratio of EVA and SEBS on the foaming and damping properties was studied. ΔT gradually widened into the high temperature region with the increase of SEBS content, and higher SEBS gave denser and more uniform cell structure and reduced the density of the blend foam. When the content of SEBS was 40 phr, the density of the blended foam was 0.185 g/cm3, and the ΔT was −3~54°C. These damping foams were lightweight and this work showed that damping performance could be controlled by simply adjusting blend content, which is of great significance to broaden the application environment of damping materials.Highlights EVA/SEBS foam was prepared by supercritical nitrogen. EVA and SEBS blends can broaden the damping temperature range. The damping temperature range was −3.0~54.6°C when SEBS content was 40 phr.
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