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A peroxide curable hydrogenated nitrile rubber (HNBR) was modified by in situ produced polyurethane (PU), added in 50 and 100 parts per hundred rubber (phr). The crosslinked PU was formed from solid PU precursors, viz. polyol and blocked polyisocyanate, during curing of the HNBR rubber.Dynamic mechanical thermal analysis (DMTA) revealed that HNBR formed the continuous whereas PU the dispersed phase...
The friction, sliding and rolling wear characteristics of thermoplastic dynamic vulcanizates (TPV; Santoprene ® grades), composed of polypropylene (PP), ethylene/propylene/diene rubber (EPDM) and extender oil, were studied against steel counterparts in dry condition. The composition and basic mechanical properties of the TPV of various hardness (Shore A=60°, 70° and 80°) were evaluated. The...
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