Effect of Modifying Carbon Black on the Properties of Rubber Compounds

Kornev, Yu. V.; Yumashev, O. B.; Zhogin, V. A.; Gamlitskii, Yu. A.; Shvachich, M. V.; Bukanov, A. M.

doi:10.1177/0307174x0903600303

Cited by 5 publications

(11 citation statements)

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“…Как и все каучуки эмульсионной полимеризации, БНК содержат значительные количества некаучуковых компонентов, среди которых большую часть составляют невымываемые из каучука остатки эмульгаторов, которые относятся к поверхностно-активным веществам (ПАВ). Остаточные количества эмульгаторов в каучуке оказывают значительное влияние как на технологические свойства каучука и резиновых смесей, так и на эксплуатационные свойства резиновых изделий [1][2][3].…”

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The Influence of Residue Emulsifier Amounts on Properties of Nitrile Rubbers and Elastomeric Materials Based on Them

et al. 2018

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The paper considers the properties of a number of commercially available Russian nitrilebutadiene rubbers (NBR) containing approximately the equal acrylonitrile amount (from 26 to 33%) in the macromolecule, but differing in the method of synthesis and isolation. The assessment ofthe influence of residual emulsifier content and also such surfactants as rosin and stearic acid introduced as technological additives on some NBR properties was performed. The technological properties of model compounds based on these NBR, in particular, Mooney viscosity, minimal and maximal torques during curing, and scorching time were determined. It was shown that both residual emulsifier amounts and introduced surfactants decrease the viscosity of the compounds and increase the curing time. It was noted that rosin acts in a different manner in comparison with stearic acid. In particular, stearic acid acting as an interstructural plasticizer affects viscosity decrease in a greater degree. The mechanical performance of vulcanizatesbased on rubber compounds considered in the paper was also determined. It was shown that the surfactants effect on the mechanical properties is negligible and is within the measurement accuracy. Nevertheless, the NBRs obtained with various emulsifiers differ essentially and can’t be replaceable without revising both the rubber compounds recipes and processing parameters. The vulcanizates resistance to some organic solvents and water was also studied. It was shown that the acrylonitrile content in the rubber macromolecule is the key factor affecting the resistance to non-polar solvents. At the same time it was found that the vulcanizates containing residual emulsifier amounts tend to the swelling index increase. In general, the surfactants effect on the swelling index is ambiguous, and it requires deeper research.

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Section: Introductionunclassified

The Influence of Residue Emulsifier Amounts on Properties of Nitrile Rubbers and Elastomeric Materials Based on Them

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“…The presence of polar groups in the polymer determines their high oil and gas resistance, and the presence of simple ether bonds helps to preserve the flexibility and elasticity of materials at low temperatures. 1,2 Thus, epichlorohydrin rubber attract researchers to develop special-purpose elastomeric materials, including for creating frost- and oil- and gas-resistant sealing rubbers, products made of which will work in extreme Northern and Arctic climatic conditions. 3–5…”

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Investigation of the effect of plasticizer injection technology on the properties of epichlorohydrin rubbers

Fedorova

Davydova

Shadrinov

et al. 2020

Journal of Elastomers & Plastics

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The influence of preliminary swelling of epichlorohydrin rubber of the brand is investigated Hydrin Т6000 in dioctyl adipate and dioctyl sebacate on the Physicomechanical characteristics and frost resistance of its vulcanizates. Revealed that pre-swelling of the rubber in the plasticizer, the plasticizer penetrates into the intermolecular space of the rubber and due to the shielding effect reduces the interaction of the filler with the elastomer matrix, which simultaneously leads to improved low-temperature properties and decrease of Physicomechanical properties of vulcanizates.

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“…In experiments, the schungite nano and micro particles had sizes of ~40 and ~200 nm, respectively, the Young modulus of the contact layer was E L = 0.987 GPa, and the contact layer width around nano particles was l = 25 nm [7].…”

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“…In this case, we took according to the results of experiments [7] that the Young modulus amounted to MPa for the styrene butadiene matrix, GPa for schung ite, and the Poisson ratio of schungite is .…”

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Effect of inclusion size on the mechanical properties of elastomeric composites

2012

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Effect of Modifying Carbon Black on the Properties of Rubber Compounds

Abstract: T/13 mixes with Lapramol 294 is slightly lower than that of the initial mix. There is also a reduction in the induction period of vulcanisation in mixes with Lapramol 294 as the ingredient, irrespective of the mixing temperature (see

Cited by 5 publications

References 2 publications

The Influence of Residue Emulsifier Amounts on Properties of Nitrile Rubbers and Elastomeric Materials Based on Them

The Influence of Residue Emulsifier Amounts on Properties of Nitrile Rubbers and Elastomeric Materials Based on Them

Investigation of the effect of plasticizer injection technology on the properties of epichlorohydrin rubbers

Effect of inclusion size on the mechanical properties of elastomeric composites

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