Material Analysis 11 조회수

EVA creep deformation is large

문제 현상

EVA product creep under long-term load >5%, exceeding the 2% requirement

원인 분석

EVA elastomer nature has large creep; molecular weight too low with poor creep resistance; no crosslinking with large plastic flow

해결 방법

1) Select high molecular weight grade; 2) Slight crosslinking with 0.3wt% DCP to reduce plastic flow; 3) Add rigid fillers to reduce creep

핵심 요약

Large creep is caused by the elastomer nature; slight crosslinking and rigid filler are key

EVA creep slight crosslinking high molecular weight rigid filler

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