Molding Process
8 görüntüleme
Large compression set of PU
Sorun Belirtisi
PU product compression set >30%, below the 15% requirement
Neden Analizi
PU elastic recovery insufficient; crosslinking degree too low, plastic deformation unrecoverable; density too low, cell walls thin, poor recovery
Çözüm
1) Increase crosslinking degree to 60-70% to reduce plastic deformation; 2) Select high elastic recovery PU grade; 3) Add reinforcing filler
Temel Çıkarım
Large compression set is caused by insufficient crosslinking; increasing crosslinking degree is key
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