Abstract
The effect of plasma etching and chromic acid treatment on the surface adhesion of ultra-high modulus polyethylene fibres to an epoxy resin has been studied. The adhesion was determined from pull-out tests, and showed a significant improvement for both plasma and acid treatments. The mechanism of failure, however, appeared to be different in the two cases. Untreated and acid-treated monofilaments showed a fairly smooth surface and failure of the pull-out samples involved sliding along the monofilament/resin interface. Plasma treatment, on the other hand, produced a remarkable structure on the monofilament surface, into which resin penetrated to produce a mechanical keying between monofilament and resin. Failure in the pull-out test then involved rupture within the monofilament.
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Ladizesky, N.H., Ward, I.M. A study of the adhesion of drawn polyethylene fibre/polymeric resin systems. J Mater Sci 18, 533–544 (1983). https://doi.org/10.1007/BF00560643
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DOI: https://doi.org/10.1007/BF00560643