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The effects of fluids in the aircraft environment on a polyetherimide
Author(s) -
Long Edward R.,
Collins William D.
Publication year - 1988
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760281208
Subject(s) - materials science , composite material , polyetherimide , flexural strength , composite number , fiber , thermoplastic , absorption of water , hydraulic fluid , ultimate tensile strength , graphite , capillary action , dissolution , peek , hydraulic machinery , polymer , chemical engineering , engineering , mechanical engineering
Fluid absorption studies have been made for a polyetherimide thermoplastic film and a unidirectional composite of the thermoplastic with graphite fibers immersed in water, JP4 jet fuel, ethylene glycol, and hydraulic fluid. The changes in the weight, thickness, and tensile properties were measured for the film. The changes in the flexural properties of the composite were measured for specimens whose fiber orientation was transverse to their length. Only the hydraulic fluid, which caused an erosion or dissolving of the resin at the specimen surface, affected the film's properties. Both the water and the hydraulic fluid affected the flexural properties of the composite, due to capillary absorption along the fiber‐resin interface.