화학공학소재연구정보센터
Polymer(Korea), Vol.9, No.4, 307-318, August, 1985
카본블랙 충전 Trans-Polyoctenamer Vulcanizate의 동력학적 및 기계적 성질
Dynamic Mechanical Properties of Carbon Black Filled Trans-Polyoctenamer Vulcanizates
Transpolyoctenamer(TOR: Mw50,000∼60,000, trans content 80%, crystallinity 33%, Tm 55℃) is a metathesis polymer of cyclooctene with prevalently tracts-isomeric double bonds. In the dynamic mechanical properties, the (tanδ)max values of extended TOR films are larger than those of original TOR films because macrocyclic oligomer entanglement may be loosened by external forces. Extensibility of molecular chains improved with decreasing the extension temperature, which decreased the(tanδ)max. On the TOR vulcanizates carbon black 60 phr loaded vulcanizate (at oil 10phr), oil 5 phr loaded vulcanizate (at carbon black 50 phr). D. C. P. curing vulcanizate(at carbon black 50 phr, oil 10 phr) showed that scatter of rheovibron data occurred beneath Tg. This may be caused by the frictional loss of the interaggregates contact. In mechanical properties of vulcanizates initial modulus, ultimate strength arid elonagation are improved as the content of carbon black is increased and as the content of oil is decreased.