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Environmental effects on the static strength and stress relaxation of a quartz fabric–reinforced, cyanate resin–matrix composite
Author(s) -
Gutman E. M.,
Grinberg A.,
Ribak E. A.,
Petronius I.
Publication year - 1997
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.10308
Subject(s) - materials science , ultimate tensile strength , composite material , cyanate ester , composite number , quartz , matrix (chemical analysis) , stress relaxation , stress (linguistics) , cyanate , izod impact strength test , polymer chemistry , linguistics , creep , philosophy , epoxy
Environmental effects are an important consideration when one is designing polymer matrix composites (PMC). The mechanical behavior of a quartz fabric–reinforced, cyanate resin–matrix composite was studied by tensile tests, compression tests, and stress relaxation tests. Compression and tensile strength as well as smaller relaxation spectra were obtained after exposing the material to different environments involving printed wire board (PWB) in aviation systems: Skydrol hydraulic oil (25°C), salt spray (5% NaCl at 95°F), alkaline solution (45 g/l 50°C), and nitric acid (304 g/l 25°C). Although only a small amount of environmental liquid was absorbed, it nonetheless had an acute effect on the mechanical properties and lifetime of the material.