Abstract
Potentialities of the modification of stress-strain properties of epoxy polymers of cold and hot curing are studied to produce thermally shrinkable couplings with “shape memory”. Various epoxy rubbers are used as modifiers and the curing was performed according to a stepwise regime with amine and anhydride curing agents. The result obtained shows that parameters of strength and deformation characteristics of polymer couplings can be varied within a wide range with the change in compositions of epoxy oligomers and curing agents. Regimes of coupling shrinkage and curing of adhesive layer are determined to ensure the reliability of coupling-adhesive joint of pipelines.
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