Determination of the Crosslink Density of Silica Filled Styrene Butadiene Rubber Compounds by different Analytical Methods

Maria Del Pilar Bernal Ortega, Rafal Piotr Anyszka (Contributor), Anke Blume (Contributor)

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Abstract

The crosslink density (CLD) of rubber compounds has a great effect on the properties of the final product. For this reason, a suitable characterization method is required to understand and optimize the final performance of rubber materials. Four different experimental techniques were used to determine the crosslink density of silica filled Styrene Butadiene Rubber (SBR) composites: equilibrium swelling experiments, stress-strain measurements using the Mooney Rivlin theory, freezing point depression temperature tests and Temperature Scanning Stress Relaxation (TSSR) measurements. The evaluation of these different techniques shows that the results obtained follow a similar trend for all four methods. The results from the Mooney Rivlin and TSSR measurements correlate the best. These two techniques are the least affected by the presence of fillers and are the less time consuming ones. Furthermore, they also show the best correlation with the mechanical properties of the studied compounds.
Original languageEnglish
Number of pages13
Publication statusPublished - 19 Oct 2023
Event204th Technical Meeting of the Rubber Division ACS, 2023 - Cleveland, United States
Duration: 17 Oct 202319 Oct 2023
Conference number: 204

Conference

Conference204th Technical Meeting of the Rubber Division ACS, 2023
Country/TerritoryUnited States
CityCleveland
Period17/10/2319/10/23

Keywords

  • 2024 OA procedure

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