The manifold interactions of ZnO and stearic acid in a modern silica-filled tire tread compound

Anke Blume, Steluta Gina Butuc (Contributor), F.A. van Elburg (Contributor), A. Risthaus (Contributor), Fabian Grunert (Contributor), Auke Gerardus Talma (Contributor)

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Abstract

Zink oxide and stearic acid are commonly used in typical sulfur-cured rubber compounds. Their role as activators is well recognized. But how manifold the interactions in a silica-filled rubber application are, will be discussed in this paper. A special emphasis is put on the “ideal” ratio between ZnO and stearic acid in a rubber compound. It is concluded that the formation of the active Zn-complex takes place only at the surface of the ZnO crystal, most of the ZnO remains unreacted in the rubber matrix.
Original languageEnglish
Number of pages15
Publication statusPublished - 6 Oct 2021
EventFall 200th Technical Meeting ACS Rubber Division - Pittsburgh Virtual, United States
Duration: 4 Oct 20217 Oct 2021
Conference number: 200

Conference

ConferenceFall 200th Technical Meeting ACS Rubber Division
Country/TerritoryUnited States
CityPittsburgh Virtual
Period4/10/217/10/21

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