Material Analysis
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CEF creep deformation large
Fenómeno del problema
The creep of the CEF product under long-term load is >5%, exceeding the 2% requirement
Análisis de la causa
The elastomer nature of CEF has large creep; the molecular weight is low and the creep resistance is poor; uncrosslinked plastic flow is large
Solución
1) Select high-molecular-weight grades; 2) Slight crosslinking with 0.3wt% DCP to reduce plastic flow; 3) Add rigid fillers to reduce creep
Conclusión clave
Large creep is caused by the elastomer nature; slight crosslinking and rigid fillers are the key
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