Effect of trans-1,4-poly(butadiene-co-isoprene) rubber on properties of styrene-butadiene rubber/natural rubber blends for rubber roller

Abstract

The rubber blends for rubber roller were prepared with natural rubber, styrene-butadiene rubber and trans-1,4-poly(butadiene-co-isoprene) rubber, the effects of trans-1,4-poly(butadiene-co-isoprene) rubber amount on the compatibility, curing characteristics, mechanical properties, wear resistance and aging resistance of the blends were investigated. The results showed that as the trans-1,4-poly(butadiene-co-isoprene) rubber amount increased from 0 to 20 phr (mass), the crosslinking density of the blend increased gradually and curing time shortened, tensile strength increased gradually, hardness increased slightly, compression permanent set showed a downward trend, and wear resistance improved. The compatibility of the three rubbers was good, and the dispersion of filler and aging resistance of the blending rubber were improved.