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THE PHYSICAL PROPERTIES OF VULCANIZATES BASED ON NBR/SBR BLENDS,
ROCK ISLAND ARSENAL ILL
A study was made of the properties of vulcani zates prepared from blends of nitrile-butadiene rubber NBR and styrene-butadiene rubber SBR elastomers. Resistance to petroleum oils, age resistance, including ozone resistance, proper ties at low temperatures, and processability were emphasized. Ratios of NBRSBR from zeo to one hundred percent at increments of twenty were studied using three curing systems, viz., sulfur plus accelerator, accelerators only, and dic l peroxide. The information presented should be of value in selecting elastomeric compositions to meet difficult Army needs. Author