000 02068nam a2200241Ia 4500
008 220216s9999 xx 000 0 und d
100 _aSeadan M
245 0 _aNovel thermoplastic elastomer of reactive NR and PA6 blends
260 _bJournal of Rubber Research
_c2005
300 _a205-219
520 _aRelevant developments in polymer blends on immiscible polymers have shown how efficient the amphiphilic species are in improving mechanical properties and morphological stabilisation through reactive and dynamic vulcanisation on successive processing steps. However, it appears that, in blends of immiscible polymers, the interfacial compatibilities of polymers are necessarily mixed before the dynamically vulcanised process to obtain good mechanical properties of thermoplastic elastoemrs. The induced reactivity in a single screw extrusion is based on a misture of peroxide (Perkadox 14@), reactive monomer (maleic anhydride) and activators (ZnO and stearic acid). The results confirm that a good level of reciprocal grafting occurred between NR and PA6. Their morphology showed a good interfacial adhesion with finer continuous phase of PA6. Dynamically vulcanised processes were done using several vulcanising systems on a single screw extruder. It showed that the suitable vulcanising agent was phenolic resin (SP-1045). The produced thermoplastic elastomer showed a fine crosslinked dispersed phase NR, which corresponded to good mechanical properties of high tensile strength and elongation at break. The PA6/NR reactive blend TPE containing PA6 40;and NR 60;had a tensile strength level about 12MPa with the elongation at break about 135;. It also showed very good oil resistance at an ultra-high temperature of 200 oC.
650 _aCrosslinking
650 _aDynamic vulcanisation
650 _aMechanical properties
650 _aMOrphology
650 _aPA6
650 _aReactive blends
650 _aTheroplastic Elastomer
650 _aVulcanising systems
700 _aLuksameevanish V
700 _aRattanapane S
942 _cJS
999 _c64117
_d64117