A new semicrystalline, thermoplastic polyimide for carbon fiber-reinforced composites

A new semicrystalline polyimide (PI-2) has been prepared from 1,3-bis(4-aminophenoxy)-2,2-dimethylpropane and 3,3′,4,4′-benzophenonetetracarboxylic dianhydride. The polymer, which has a glass transition temperature of 230°C and a melting point of 335°C, displays outstanding toughness with a fracture...

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Bibliographic Details
Published in:Composite structures 1994, Vol.27 (1), p.17-23
Main Authors: Harris, Frank W., Lien, Hsun-Shen, Gabori, Patricia A., Zhang, Yiding, Chalmers, Tammy M., Zhang, Anqiu, Shen, Dexing, Cheng, Stephen Z.D.
Format: Article
Language:English
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Summary:A new semicrystalline polyimide (PI-2) has been prepared from 1,3-bis(4-aminophenoxy)-2,2-dimethylpropane and 3,3′,4,4′-benzophenonetetracarboxylic dianhydride. The polymer, which has a glass transition temperature of 230°C and a melting point of 335°C, displays outstanding toughness with a fracture energy of 4·28 KJ/m 2. The toughness may be associated with the polymer's unique morphology, which consists of randomly stacked, ribbon-like lamellae. A reactive precursor approach has been used to prepare carbon-fiber reinforced composites that display interlaminar fracture energies ( G 1C) as high as 1·81 KJ/m 2.
ISSN:0263-8223
1879-1085
DOI:10.1016/0263-8223(94)90062-0