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Effect of various efficient vulcanization cure systems on the compression set of a nitrile rubber filled with different fillers
Author(s) -
Movahed Saeed Ostad,
Ansarifar Ali,
Mirzaie Farnaz
Publication year - 2015
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.41512
Subject(s) - vulcanization , compression set , carbon black , natural rubber , sulfur , sulfenamide , materials science , composite material , nitrile rubber , carbon fibers , compression (physics) , stearic acid , filler (materials) , silane , composite number , metallurgy
Effect of various efficient vulcanization (EV) sulfur cure systems on the compression set of a nitrile rubber filled with carbon black and silica/silane fillers was examined. The cure systems had different amounts of thiuram and sulfenamide accelerators and elemental sulfur, whilst the loading of zinc oxide and stearic acid activators was kept constant. The fillers had surface areas from 35 to 175 m 2 /g. In this study, the lowest compression set was measured for the rubber filled with carbon black with 78 m 2 /g surface area, which was cured with an EV cure system made of a small amount of elemental sulfur and large amounts of the two accelerators. Interestingly, a small change in the amount of elemental sulfur had a bigger effect on the compression set than did large changes in the loading of the accelerators in the cure system. Among the fillers, carbon black caused less compression set of the rubber vulcanizate than the silica/silane system did. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41512.