Modification of acrylonitrile-butadiene rubberproperties of polyblends
Acrylonitrile-butadiene rubber (NBR) has been modified with fluorine rubber (CFM), polyethylene (PE) or poly(vinyl chloride). It has been found that NBR/CFM polyblends exhibit an almost complete compatibility. The mutual interaction of incompatible componens in NBR/PE polyblends results in the formation of a specific structure comprising a higher organization in the rubber phase contacting with the PE-phase. In the case of NBR/PVC polyblends, their compatiblity depends on the acrylonitrile content in NBR and on the molecular mass of PVC. The kinetics and mechanism of the cross-linking (vulcanization) process in NBR/PVC polyblends has been investigated.
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