Material Analysis
6 görüntüleme
Large creep deformation of PU
Sorun Belirtisi
PU product creep under long-term load >5%, exceeding the 2% requirement
Neden Analizi
PU elastomer inherently has large creep; molecular weight too low, poor creep resistance; not crosslinked, large plastic flow
Çözüm
1) Select high molecular weight grade; 2) Slight crosslinking with 0.3wt% DCP to reduce plastic flow; 3) Add rigid filler to reduce creep
Temel Çıkarım
Large creep is caused by elastomer nature; slight crosslinking and rigid filler are key
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