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Rheology pp 469-476 | Cite as

Effect of Carbon Black on the Rheological Properties of Styrene N-Butyl Methacrylate Copolymer Melt

  • S. K. Ahuja

Abstract

Carbon black reinforcement in elastomers, as well as glassy polymers, has been the subject of an intense study for almost fifty years.1 Grades of carbon black are distinguished by surface area and bulkiness (dibutyl phthalate absorption), the latter being a function of the number and arrangement of particles within an aggregate. Carbon black surface area increase results in an increase in the elastic modulus at low amplitude of deformation because of the presence of interaggregate network.2 At higher amplitudes of deformation, there is breakage and reformation of this network. Aggregate bulkiness increases both the elastic and the viscous modulus without changing their ratios.3 Lobe and White4 have recently observed that rheological behavior of a molten filled polymer at 10–20% loading is that of a gel. They also found that viscosity does not level off at decreasing rates of deformation but continues to increase.

Keywords

Carbon Black Carbon Black Concentration Viscous Modulus Surface Acidic Group Viscous Modulo 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    A.I. Medalia, Rubber Chem. Technol. 47: 411 (1974).CrossRefGoogle Scholar
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    F.R. Graziano, R.E. Cohen, and A.I. Medalia, Rheol. Act. 18: 640 (1979).CrossRefGoogle Scholar
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    A.R. Payne and R.E. Whittaker, Rubber Chem Techol. 44: 440 (1970).CrossRefGoogle Scholar
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    V.M. Lobe and J.L. White, IUTAM Symposium on Non-Newtonian Fluid Mechanics 1: 1 (1978).Google Scholar
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    G. Martin and W.W. Graessley, Rheological Acta 16: 527 (1977).CrossRefGoogle Scholar
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    S.K. Ahuja, Rheological Acta, in press.Google Scholar
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    W.W. Graessley, Advances in Polymer Science, 16 (1974).Google Scholar

Copyright information

© Springer Science+Business Media New York 1980

Authors and Affiliations

  • S. K. Ahuja
    • 1
  1. 1.Joseph C. Wilson Center of TechnologyRochesterUSA

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