High Performance Oil Resistant Rubber

摘要

Binary or ternary blends from acrylonit-rile butadiene rubber (NBR), chloropre-ne rubber (CR) and polyvinyl Chloride (PVC) have been investigated for producta working in contact with oils. From investigations of rheological pro-perties, mechanical behavior and oil swelling it was found that the incorpo-ration of PVC in the blend compositions decreases the degree of swelling, the penetration rate and the average diffu-sion coefficient. On the other hand the ultimate tensile strength (UTS), the hardness and strain energy were incre-ased. The crosslinking density in the blend vulcanizates under