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Carbon black–polymer interaction: A measure of reinforcement
Author(s) -
Brennan J. J.,
Jermyn T. E.,
Boonstra B. B.
Publication year - 1964
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1964.070080615
Subject(s) - carbon black , mixing (physics) , polymer , mooney viscosity , elastomer , natural rubber , viscosity , materials science , composite material , modulus , polymer chemistry , chemical engineering , physics , quantum mechanics , copolymer , engineering
The interaction of carbon blacks with high polymers during the mixing process was studied by using fillers having a wide range of surface characteristics. Glass beads, Graphon, high‐structure blacks, and heat‐treated blacks were mixed with elastomers in the Brabender Plasticorder. With the use as a rubber matrix of a high polymer that did not materially change during the mixing process in molecular weight or viscosity, excellent correlation was found between final torque required for mixing and black structure and between peak torque and bound rubber. Increasing interaction was shown to lead to increased mixing torque, increased Mooney viscosity, increased modulus, and higher state of cure, as measured by swelling. If the high polymer matrix breaks down during the mixing process these influences of interaction are mostly obscured by diminishing molecular weight.