Material Analysis
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Large Creep Deformation of CMC
Fenómeno del problema
Creep of CMC products under long-term load >5%, exceeding the 2% requirement
Análisis de la causa
CMC elastomer is inherently large in creep; molecular weight is low and creep resistance is poor; uncrosslinked, plastic flow is large
Solución
1)Select high-molecular-weight grade; 2)Micro-crosslink 0.3wt% DCP to reduce plastic flow; 3)Add rigid filler to reduce creep
Conclusión clave
Large creep is caused by the nature of the elastomer; micro-crosslinking and rigid filler are the key
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