Journal of Industrial and Engineering Chemistry, Vol.7, No.6, 389-395, November, 2001
Influence of Liquid Polybutadiene on Properties of Silica-Filled Styrene-Butadiene Rubber Compounds
E-mail:
Polybutadiene is composed of cis-1,4-, trans-1,4-, and 1,2-units. Of the three components, the 1,2-unit has the strongest filler-polymer interaction with silica. In this study, improvement of the filler dispersion in a silica-filled styrene-butadiene rubber (SBR) compound by adding low molecular weight polybutadiene (liquid butadiene rubber, liquid BR) was investigated. The total mixing energy is less consumed by adding the liquid BR to a silica-filled SBR compound. The liquid BR improves the silica dispersion and makes the viscosity lower. The delta torque decreases with increase in the liquid BR content in silica-filled SBR compounds. The Mooney scorch time becomes slower as the liquid BR content increases. The modulus decreases with increasing the liquid BR content due to the decreased crosslink density.
- Choi SS, J. Appl. Polym. Sci., 79(6), 1127 (2001)
- Choi SS, J. Polym. Sci. B: Polym. Phys., 39(4), 439 (2001)
- Choi SS, Korea Polym. J., 9(1), 45 (2001)
- Choi SS, J. Anal. Appl. Pyrolysis, 55, 161 (2000)
- Mooney M, Ind. Eng. Chem. Anal. Ed., 6, 147 (1934)
- Taylor RH, Rubber Chem. Technol., 19, 808 (1946)
- Mooney M, Wolstenholme WE, Rubber Chem. Technol., 28, 488 (1955)
- Baader T, Rubber Chem. Technol., 28, 588 (1955)
- Sperberg LR, Svetlik JF, Bliss LA, Ind. Eng. Chem., 41, 1607 (1949)
- Brennan JJ, Jermyn TE, Rubber Chem. Technol., 40, 817 (1967)
- Twiss DF, J. Soc. Chem. Ind., 44, 1067 (1925)
- O'Brien J, Cashell E, Wardell GE, McBriety VJ, Macromolecules, 9, 653 (1976)
- Meissner B, Rubber Chem. Technol., 48, 810 (1975)
- Wolff S, Wang MJ, Tan EH, Rubber Chem. Technol., 66, 163 (1993)
- Choi SS, Korea Polym. J., 7(4), 244 (1999)
- Leblanc JL, J. Appl. Polym. Sci., 78(8), 1541 (2000)
- Parks CR, Brown RJ, Rubber Chem. Technol., 49, 233 (1976)
- Choi SS, Korea Polym. J., 8(6), 285 (2000)
- Morrison NJ, Porter M, Rubber Chem. Technol., 57, 63 (1984)