New thermoplastic elastomers, copolyester (CPET)/nitrile rubber (NBR) alloys, were developed by using various dynamic vulcanization tech niques, such as internal mixing, open mill mixing, and twin screw extrusion, or their combinations. The effects of the various manufacturing techniques on rheological and mechanical properties were compared. The study showed that the dynamic vulcanization method by a twin screw extruder is most suitable for the manufacture of CPET/NBR elastomeric alloys.
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