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The use of coupling agents to enhance the performance of aramid reinforced composites
Author(s) -
Vaughan D. J.
Publication year - 1978
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.760180214
Subject(s) - materials science , aramid , composite material , coupling (piping) , fiber
In view of the organic nature of aramid fiber and its ability to be combined with a number of polymer systems, fabric woven from that fiber has previously been used in an unfinished or scoured stale. However, this has resulted in a marked lack of adherence at the fiber‐resin interface that has considerably reduced compressive values in the composite; this is particularly evident when the composite is exposed to adverse aqueous environments. In order to overcome what appears to be the major deficiency in this fiber, a series of coupling agents has been developed which, when used in conjunction with a number of commercial resin systems, shows a marked improvement in interlaminar adhesion. The paper outlines the problem of using untreated fiber and establishes the area of responsibility for initial failure. It then shows how the correct use of coupling agents has overcome the interfacial adhesion problem and has enhanced the performance of aramid fiber reinforced composites.