Toughened carbon fiber composites with morphology gradient

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The morphology and fracture behavior of polyimide modified carbon fiber/dicyanate composites were analyzed. Composites having morphology gradient were prepared by inserting a polyimide film between prepregs of carbon fabric impregnated by dicyanate alone, and controlling the relative rate of dissolution of polyimide and the polymerization of dicyanate by adding zinc stearate catalyst. The composites having morphology gradient showed G(IC) and G(IIC) values of 2.2 kJ/m(2) and 1.4 kJ/m(2) respectively, which showed 3-5 times of those values of unmodified carbon fiber/dicyanate composites.
Publisher
HUTHIG & WEPF VERLAG
Issue Date
1997
Language
English
Article Type
Article; Proceedings Paper
Citation

MACROMOLECULAR SYMPOSIA, v.118, pp.371 - 376

ISSN
1022-1360
DOI
10.1002/masy.19971180148
URI
http://hdl.handle.net/10203/2819
Appears in Collection
CBE-Journal Papers(저널논문)
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