Molding Process
6 Aufrufe
EVA foam hardness is too high
Problembeschreibung
EVA foamed shoe sole Shore C50 is higher than C35-40
Ursachenanalyse
Density >0.3 with few cells, thick walls and hardness; crosslinking >80% with insufficient elasticity
Lösung
1) Increase AC to 0.8-1wt% to reduce density to 0.25g/cm³; 2) Reduce DCP to 0.4-0.5wt% with crosslinking 60-70%; 3) VA18-28% to reduce viscosity and promote expansion
Wichtigste Erkenntnis
High hardness is caused by high density and excessive crosslinking; reducing density and moderate crosslinking are key
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!