Blends of nylon-epoxy resins are used as adhesives. It is found by swelling tests that the epoxy resin crosslinks the nylon. By the failure of poly-N,N'-diisobutylhexamethyleneadipamide to cure and by the failure of prereactions of the nylon with phenyl glycidyl ether, it is shown that the epoxy resin reacts with the nylon through the amide hydrogen. The effect of the epoxy cure on increasing the brittle strength and on decreasing the yield strength of the nylon is discussed in terms of stresses in the adhesive joint.
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B. S. Gorton (1964) studied this question.