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Flocculation and viscoelastic behaviour in carbon black-filled natural rubber

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dc.title Flocculation and viscoelastic behaviour in carbon black-filled natural rubber en Tunnicliffe, Lewis B. Kadlčák, Jakub Morris, Michael D. Shi, Ye Thomas, Alan G. Busfield, James J. C.
dc.relation.ispartof Macromolecular Materials and Engineering
dc.identifier.issn 1438-7492 OCLC, Ulrich, Sherpa/RoMEO, JCR 2014
utb.relation.volume 299
utb.relation.issue 12
dc.citation.spage 1474
dc.citation.epage 1483
dc.type article
dc.language.iso en
dc.publisher Wiley-VCH Verlag GmbH & Co.
dc.identifier.doi 10.1002/mame.201400117
dc.subject carbon black en
dc.subject elastomer en
dc.subject flocculation en
dc.subject reinforcement en
dc.subject rubber en
dc.description.abstract The process of particulate flocculation in natural rubber melts and subsequently crosslinked samples is investigated using carbon blacks of varying surface free energy, surface area and morphology. The surface free energies are varied via thermal treatment of the carbon blacks (graphitization). Reduction in surface free energy of the particulates accelerates the flocculation processes in the melt as measured by rheological experiments and reduces the percolation volume fraction threshold as determined by D/C conductivity measurements. The consequent effects on amplification of the small strain storage moduli of the crosslinked compounds are dramatic. Reduced polymer-filler interactions result in both an increased small strain modulus versus the unmodified carbon black-filled materials and an increased mechanical fragility of the fractal networks. Examination of the dynamic elastic moduli of crosslinked carbon black-filled samples loaded at volume fractions below the onset of network development reveal a significant temperature dependence isolated at the filler-rubber interface. en
utb.faculty University Institute
utb.faculty Faculty of Technology
utb.identifier.obdid 43872695
utb.identifier.scopus 2-s2.0-84905893122
utb.identifier.wok 000345852300007
utb.identifier.coden MMENF
utb.source j-wok 2015-01-29T11:35:05Z 2015-01-29T11:35:05Z
dc.description.sponsorship EPSRC (UK); Sibelco; 'Operational Program Education for Competitiveness'; European Social Fund (ESF); national budget of Czech Republic [CZ.1.07/2.3.00/20.0104, CZ.1.05/2.1.00/03.0111]; 'Research and Development for Innovations' operational program; European Regional Development Fund (ERDF)
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Kadlčák, Jakub
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