Material Analysis
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Large EMA creep deformation
Problembeschreibung
EMA product creep >5% under long-term load, exceeding the 2% requirement
Ursachenanalyse
EMA elastomer nature with large creep; molecular weight too low with poor creep resistance; no crosslinking with large plastic flow
Lösung
1) Select high molecular weight grade; 2) Slight crosslinking with 0.3wt% DCP to reduce plastic flow; 3) Add rigid filler to reduce creep
Wichtigste Erkenntnis
Large creep is caused by elastomer nature; slight crosslinking and rigid filler are key
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