Material Analysis
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CEF hardness too high
Problembeschreibung
The Shore hardness of the CEF product is 5-10 degrees higher than the target and feels hard
Ursachenanalyse
The CEF crystallinity is high and the rigidity increases; too much filler is added; the cooling is too fast, the crystallization is imperfect but the rigidity is frozen
Lösung
1) Reduce the cooling rate to make the crystallization perfect and reduce the hard feel; 2) Reduce the amount of filler added; 3) Add plasticizer 0.5wt% to reduce hardness
Wichtigste Erkenntnis
High hardness is caused by crystallization and fillers; adjusting cooling and fillers is the key
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