000874384 001__ 874384 000874384 005__ 20240619092035.0 000874384 0247_ $$2doi$$a10.3390/polym12030502 000874384 0247_ $$2Handle$$a2128/24551 000874384 0247_ $$2pmid$$apmid:32106486 000874384 0247_ $$2WOS$$aWOS:000525952000001 000874384 037__ $$aFZJ-2020-01404 000874384 082__ $$a540 000874384 1001_ $$0P:(DE-Juel1)162139$$aStaropoli, Mariapaola$$b0$$eCorresponding author$$ufzj 000874384 245__ $$aDecoupling the Contributions of ZnO and Silica in the Characterization of Industrially-Mixed Filled Rubbers by Combining Small Angle Neutron and X-Ray Scattering 000874384 260__ $$aBasel$$bMDPI$$c2020 000874384 3367_ $$2DRIVER$$aarticle 000874384 3367_ $$2DataCite$$aOutput Types/Journal article 000874384 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1609770545_7724 000874384 3367_ $$2BibTeX$$aARTICLE 000874384 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000874384 3367_ $$00$$2EndNote$$aJournal Article 000874384 520__ $$aScattering techniques with neutrons and X-rays are powerful methods for the investigation of the hierarchical structure of reinforcing fillers in rubber matrices. However, when using only X-ray scattering, the independent determination of the filler response itself sometimes remains an issue because of a strong parasitic contribution of the ZnO catalyst and activator in the vulcanization process. Microscopic characterization of filler-rubber mixtures even with only catalytic amounts of ZnO is, therefore, inevitably complex. Here, we present a study of silica aggregates dispersed in an SBR rubber in the presence of the catalyst and show that accurate partial structure factors of both components can be determined separately from the combination of the two scattering probes, neutrons, and X-rays. A unique separation of the silica filler scattering function devoid of parasitic catalyst scattering becomes possible. From the combined analysis, the catalyst contribution is determined as well and results to be prominent in the correction scheme. The experimental nano-structure of the ZnO after the mixing process as the by-product of the scattering decomposition was found also to be affected by the presence or absence of silica in the rubber mixture, correlated with the shear forces in the mixing and milling processes during sample preparation. 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