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The effects of tension on the absorbance of water into neat and glass‐bead‐filled, cross‐linked polyester
Author(s) -
Janas V. F.,
Smith L. S.,
McCullough R. L.
Publication year - 1986
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.750070610
Subject(s) - materials science , composite material , polyester , bead , ultimate tensile strength , absorption of water , absorbance , tension (geology) , optical microscope , polyester resin , stress (linguistics) , absorption (acoustics) , scanning electron microscope , chromatography , chemistry , philosophy , linguistics
The effects of tension on the absorbance of water at 60°C into neat and glass‐bead‐filled, cross‐linked polyester are reported. Experimental apparatus and procedure to determine water uptake for these materials subjected to three tensile stresses in the range of 0 to 30 percent of the breaking stress of the neat dry polyester are described. It was found, for bead‐filled samples, that a load of approximately 4.9 × 10 6 N/m 2 caused the absorption level to increase by 30 percent over that of an unloaded sample. Tensile load was found to have no effect on the absorption characteristics of neat polyester. However, breaking stress was reduced to less than 15 percent of that in the dry neat material. Optical microscope examinations of damage at the fracture surfaces and at the sample cores indicate that the excess moisture uptake in bead‐filled samples was not due to microcrack formation.