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Poliuretani per compositi rinforzati

Poliuretani per compositi rinforzati

Medha Joshi

72,08 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Química
ISBN:
9786630361209
72,08 €
IVA incluido
Disponible

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È stata preparata una serie di coloranti monomerici mediante diazotazione di vari 2-aminobenzotiazoli e accoppiamento con resorcinolo. I coloranti polimerici sono stati preparati mediante policondensazione dei coloranti monomerici con esametilene diisocianato (HMDI) e sono stati caratterizzati in base al peso molecolare, alla titolazione conduttometrica in ambiente non acquoso, all’analisi termogravimetrica, alla spettroscopia IR e nel visibile e all’analisi elementare. Anche i coloranti monomerici sono stati caratterizzati mediante analisi elementare e spettri IR. La purezza di tutti i coloranti è stata verificata mediante cromatografia su strato sottile. I polimeri sintetizzati sono stati miscelati con resina epossidica commerciale, l’etere diglicidilico del bisfenolo A (DGEBA). Lo studio dell’indurimento delle resine preparate è stato monitorato mediante DSC. Sulla base dei termogrammi DSC, sono stati laminati compositi rinforzati con fibra di vetro e ne sono state caratterizzate le proprietà chimiche, meccaniche ed elettriche. Tutte le prove chimiche, meccaniche ed elettriche sui compositi sono state condotte secondo i metodi ASTM.

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