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Influence of iron ore concentrate (magnetite) on the kinetics of butadiene–styrene rubber-based blend curing in the presence of different accelerators

https://doi.org/10.32362/2410-6593-2020-15-5-46-53

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Abstract

Objectives. To investigate the possibility of using a cheaper ingredient, such as magnetite, in the synthesis of rubber compounds based on butadiene–styrene rubber by examining its effect on the process of sulfuric vulcanization of butadiene–styrene rubber in the presence of various accelerators.

Methods. The influence of magnetite on the vulcanization kinetics was studied using an Alpha Technologies PRPA 2000 rotorless rheometer. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were performed using a Mettler Toledo TGA/DSC 2 device to evaluate the effect of magnetite on the butadiene–styrene rubber-based vulcanizates’ oxidation.

Results. Magnetite was found to affect the kinetics of SBR-1500 butadiene–styrene rubber sulfuric vulcanization in the presence of thiazole-type accelerators (2-MBT, 2-MBS); in contrast, magnetite was inactive in the case of diphenylguanidine, sulfenamide T, and tetramethylthiuram disulfide. The obtained TGA/DSC data showed that magnetite has no significant effect on the butadiene–styrene rubber-based vulcanizates’ oxidation and thermal destruction.

Conclusions. The obtained data confirmed magnetite’s capability to act as a butadiene–styrene rubber sulfuric vulcanization activator in the presence of various accelerators. The most significant effect was observed in the presence of thiazole-type accelerators.

About the Authors

A. A. Khachaturov
MIREA – Russian Technological University
Russian Federation

Aram A. Khachaturov, Postgraduate Student, B.A. Dogadkin Department of Physics and Chemistry of Materials, Institute of Physics and Technology

78, Vernadskogo pr., Moscow, 119454, Russia



E. E. Potapov
MIREA – Russian Technological University
Russian Federation

Evgeniy E. Potapov, Dr. of Sci. (Chemistry), Professor, B.A. Dogadkin Department of Physics and Chemistry of Materials, Institute of Physics and Technology. Scopus Author ID 7006238695

78, Vernadskogo pr., Moscow, 119454, Russia



S. V. Reznichenko
MIREA – Russian Technological University
Russian Federation

Sergei V. Reznichenko, Dr. of Sci. (Technology), Professor, Head of the B.A. Dogadkin Department of Physics and Chemistry of Materials, Institute of Physics and Technology. Scopus Author ID 6603145791

78, Vernadskogo pr., Moscow, 119454, Russia



A. N. Kovaleva
MIREA – Russian Technological University
Russian Federation

Anna N. Kovaleva, Cand. of Sci. (Chemistry), Assistant Professor, Department of Chemistry and Technology for Processing Plastics and Polymer Composites, M.V. Lomonosov Institute of Fine Chemical Technologies

78, Vernadskogo pr., Moscow, 119454, Russia



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Supplementary files

1. Supposed interaction between magnetite particles and butadiene–styrene–rubber macromolecules in the presence of accelerators containing disulfide bonds.
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2. This is to certify that the paper titled Influence of iron ore concentrate (magnetite) on the kinetics of butadiene–styrene rubber-based blend curing in the presence of different accelerators commissioned to us by Aram A. Khachaturov, Evgeniy E. Potapov, Sergei V. Reznichenko, Anna N. Kovaleva has been edited for English language and spelling by Enago, an editing brand of Crimson Interactive Inc.
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The effect of magnetite on the kinetic parameters of sulfur vulcanization of elastomeric materials based on styrene-butadiene rubber (optimal vulcanization time, scorch time, and minimum and maximum torque) was studied. The active filler magnetite exhibits the best properties in the presence of a vulcanizing system containing thiazole-type accelerators.

For citation:


Khachaturov A.A., Potapov E.E., Reznichenko S.V., Kovaleva A.N. Influence of iron ore concentrate (magnetite) on the kinetics of butadiene–styrene rubber-based blend curing in the presence of different accelerators. Fine Chemical Technologies. 2020;15(5):46-53. https://doi.org/10.32362/2410-6593-2020-15-5-46-53

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ISSN 2410-6593 (Print)
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