Improved Silica Dispersibility in Silica-rubber Compounds for a Tire Tread by Using an Itaconic Acid-based Polymeric Dispersant 


Vol. 22,  No. 1, pp. 196-204, Jan.  2021
10.1007/s12221-021-9355-z


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  Abstract

Silica dispersibility in a silica-rubber compound is an important factor determining the braking performance, wear resistance, and rolling resistance of an automobile tire tread. In this study, a poly(itaconic acid-co-acrylamide) (IA-co-AAM) dispersant was synthesized by the copolymerization of IA with AAM as a novel silica dispersant for a wet masterbatch (WMB) system. We confirmed the improved silica dispersibility in the silica-rubber compounds via a rubber process analyzer (RPA) and Mooney viscometer (MV). Based on the MV measurements, the values of MV for the silica-SBR compounds using the dispersant decreased by 30 % compared to those in the absence of the dispersant. This showed a positive effect on the rubber processing workability of the silica-SBR compounds. We also evaluated the dynamic viscoelastic properties of the compounds via a dynamic mechanical analyzer (DMA) and found that the rolling resistance of the compounds for the tire tread area also improved.

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  Cite this article

[IEEE Style]

W. S. Shin, Y. R. Kwon, J. S. Kim, S. J. Hong, Y. J. Kim, S. H. Lim, Y. W. Chang, D. H. Kim, "Improved Silica Dispersibility in Silica-rubber Compounds for a Tire Tread by Using an Itaconic Acid-based Polymeric Dispersant," Fibers and Polymers, vol. 22, no. 1, pp. 196-204, 2021. DOI: 10.1007/s12221-021-9355-z.

[ACM Style]

Woo Seung Shin, Yong Rok Kwon, Jung Soo Kim, Seok Ju Hong, Yoo Jin Kim, Seung Ho Lim, Young Wook Chang, and Dong Hyun Kim. 2021. Improved Silica Dispersibility in Silica-rubber Compounds for a Tire Tread by Using an Itaconic Acid-based Polymeric Dispersant. Fibers and Polymers, 22, 1, (2021), 196-204. DOI: 10.1007/s12221-021-9355-z.

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pISSN : 1229 - 9197
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