Toughening of a highly cross-linked epoxy resin by reactive blending with bisphenol A polycarbonate. I. FTIR spectroscopy

1994 ◽  
Vol 32 (3) ◽  
pp. 395-408 ◽  
Author(s):  
M. Abbate ◽  
E. Martuscelli ◽  
P. Musto ◽  
G. Ragosta ◽  
G. Scarinzi
2003 ◽  
Vol 51 (2) ◽  
pp. 111-118 ◽  
Author(s):  
Corrado Berti ◽  
Martino Colonna ◽  
Maurizio Fiorini ◽  
Cesare Lorenzetti ◽  
Laura Sisti

1995 ◽  
Vol 55 (8) ◽  
pp. 1157-1163 ◽  
Author(s):  
Maurizio Fiorini ◽  
Corrado Berti ◽  
Vladimir Ignatov ◽  
Maurizio Toselli ◽  
Francesco Pilati

2021 ◽  
Vol 2 (2) ◽  
pp. 419-430
Author(s):  
Ankur Bajpai ◽  
James R. Davidson ◽  
Colin Robert

The tensile fracture mechanics and thermo-mechanical properties of mixtures composed of two kinds of epoxy resins of different chemical structures and functional groups were studied. The base resin was a bi-functional epoxy resin based on diglycidyl ether of bisphenol-A (DGEBA) and the other resins were (a) distilled triglycidylether of meta-amino phenol (b) 1, 6–naphthalene di epoxy and (c) fluorene di epoxy. This research shows that a small number of multifunctional epoxy systems, both di- and tri-functional, can significantly increase tensile strength (14%) over neat DGEBA while having no negative impact on other mechanical properties including glass transition temperature and elastic modulus. In fact, when compared to unmodified DGEBA, the tri-functional epoxy shows a slight increase (5%) in glass transition temperature at 10 wt.% concentration. The enhanced crosslinking of DGEBA (90 wt.%)/distilled triglycidylether of meta-amino phenol (10 wt.%) blends may be the possible reason for the improved glass transition. Finally, the influence of strain rate, temperature and moisture were investigated for both the neat DGEBA and the best performing modified system. The neat DGEBA was steadily outperformed by its modified counterpart in every condition.


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