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Thermotropic polyester amide‐carbon fiber composites
Author(s) -
Chung TaiShung,
McMahon Paul E.
Publication year - 1986
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1986.070310402
Subject(s) - composite material , materials science , epoxy , thermotropic crystal , compression molding , flexural strength , ultimate tensile strength , thermoplastic , fiber , polymer , liquid crystalline , mold
Liquid crystal polymers (LCP) have been developed for the first time as a thermoplastic matrix for high‐performance composites. A successful melt impregnation method has been developed that results in the production of continuous carbon fiber (CF)‐reinforced LCP prepreg tape. Subsequent layup and molding of prepreg into laminates has yielded composites of good quality. Tensile and flexural properties of LCP‐CF composites are comparable to those of epoxy‐CF composites. LCP‐CF composites have better impact resistance than the latter, although epoxy‐CF composites possess superior compression and shear strength. LCP‐CF composites have good property retention until 200°F (67% of room temperature value). Above 200°F, mechanical properties are found to decrease significantly. Experimental results indicate that the poor compression and shear strength may be due to the poor interfacial adhesion between the matrix and carbon fiber.