Material Analysis 13 Aufrufe

Low flexural modulus of PU

Problembeschreibung

PU product flexural modulus <20% of design value

Ursachenanalyse

PU soft, low modulus; filler addition insufficient or poor interface, no reinforcing effect; crystallinity too low

Lösung

1) Add 10-15wt% rigid filler to increase modulus; 2) Nucleating agent to increase crystallinity; 3) Select high modulus grade

Wichtigste Erkenntnis

Low flexural modulus is caused by material softness and insufficient filler; adding rigid filler is key

PU flexural modulus rigid filler nucleating agent crystallinity

War das hilfreich?

0 Personen fanden dies hilfreich