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Swelling and hygroelasticiiy of polymeric composites
Author(s) -
Marom Gad
Publication year - 1977
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.760171107
Subject(s) - materials science , composite material , composite number , swelling , epoxy , boiling , fiber reinforced composite , glass fiber , penetration (warfare) , thermodynamics , mathematics , physics , operations research
Abstract Investigated are the swelling and hygroelasticity of a unidirectional glass fiber‐reinforced epoxy composite subjected to boiling water for 24 hrs. By analogy with thermoelasticity, a coefficient of hygroelasticity is defined and shown to be predictable from the coefficients of the constituent materials by Schapery's equations. A mechanism for water penetration into the composite which combines capillarity and diffusion is proposed on the basis of the results of the water take‐up as a function of the composite specimen width (fiber length).