Abstract
Blends of chloroprene with nitrile-butadiene, urethane with chlorinated polyethylene, and styrene-butadiene with butadiene polymers were evaluated to determine the effect of blending on physical properties. The effect of cure system — sulfur, peroxide, and radiation — on physical properties was also determined. Results show that the oil resistance of most of the blends is represented by a mathematical average of the oil swell values of the components. Substantial improvement in low temperature properties of an elastomer can be obtained by blending it with low concen trations of a second elastomer having a lower stiffness temperature. The cure system in some cases has a significant effect on the resultant proper ties. This is evidenced by the variations in original and aged tensile proper ties as well as compression set properties. In most compounds a high degree of blending was obtained. Fatigue data and glass transition temperatures data are also discussed.
Get full access to this article
View all access options for this article.