Molding Process
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MP large compression set
Fenómeno del problema
MP product compression set >30%, below the 15% requirement
Análisis de la causa
MP elastic recovery insufficient; crosslinking degree low, plastic deformation unrecoverable; density low, cell walls thin, poor recovery
Solución
1) increase crosslinking degree to 60-70% to reduce plastic deformation; 2) select a high elastic recovery MP grade; 3) add reinforcing filler
Conclusión clave
large compression set is caused by insufficient crosslinking; increasing crosslinking degree is key
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