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The distribution of processing oil in two olefinic thermoplastic elastomer (OTPE) blends was determined using dielectric spectroscopy. The OPTE blends are blends of dynamically vulcanised EPDM with polypropylene (PP), TPVs, and blends of PP with SEBS. Both blend types contain paraffinic oil, which is present in both the PP and in the elastomer phase. The determination of the actual oil concentration...
Dielectric relaxation spectroscopy using dielectric probes was applied to study the (glass transition) dynamics in binary blends of isotactic PP, PS and LDPE. The blends were prepared by melt-mixing and doped with 0.5% of the dielectric probe 4,4′-(N,N-dibutylamino)-(E)-nitrostilbene (DBANS) (van den Berg O, Sengers WGF, Jager WF, Picken SJ, Wübbenhorst M. Macromolecules 2004;37:2460. [17]). Due to...
The linear viscoelastic properties of two types of olefinic thermoplastic elastomer blends were studied using dynamic rheology. The first type consists of a blend of PP, SEBS and oil and has a co-continuous morphology. The second type consists of vulcanised EPDM particles dispersed in a PP matrix. The dynamic rheological behaviour of the blends is a weighted contribution of the properties of the two...
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