Advanced Rubber Composites by A. K. Bhowmick, M. Bhattacharya, S. Mitra, K. Dinesh Kumar

By A. K. Bhowmick, M. Bhattacharya, S. Mitra, K. Dinesh Kumar (auth.), Gert Heinrich (eds.)

Morphology–Property courting in Rubber-Based Nanocomposites: a few contemporary advancements, via A. ok. Bhowmick, M. Bhattacharya, S. Mitra, okay. Dinesh Kumar, P. ok. Maji, A. Choudhury, J. J. George and G. C. Basak; * Rubber–Clay Nanocomposites: a few contemporary effects, by means of Amit Das, De-Yi Wang, Klaus Werner Stöckelhuber, René Jurk, Juliane Fritzsche, Manfred Klüppel and Gert Heinrich; * floor amendment of Fillers and Curatives through Plasma Polymerization for more desirable functionality of unmarried Rubbers and assorted Rubber/Rubber Blends, by means of J. W. M. Noordermeer, R. N. Datta, W. ok. Dierkes, R. Guo, T. Mathew, A. G. Talma, M. Tiwari and W. van Ooij; * fresh advancements on Thermoplastic Elastomers by means of Dynamic Vulcanization, by way of R. Rajesh Babu and Kinsuk Naskar; * PTFE-Based Rubber Composites for Tribological purposes, by means of M. S. Khan and G. Heinrich

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They have clearly established that the properties of nanocomposites depend greatly on the chemistry of polymer matrices, nature of nanofillers, and the method by which they are prepared. Bhattacharya et al. [84] studied the effects of varying morphological and chemical constitution of nanofillers and various dispersion methods on NR nanocomposites prepared by conventional processing techniques. They used various nanofillers like montmorillonite, SP, hectorite, CNFs, and EG. The 4 phr needlelike SP-loaded NR nanocomposite registers an increment of 26% in the modulus, and 6 phr-loaded fluorocarbon elastomer (F) increases the tear strength by 18% over the gum.

The improvement in storage modulus is higher in the case of the unmodified-clay-filled system than for the modified clay system. The storage modulus increases marginally on changing the filler loading from 4 to 16 phr in the transition region, while in rubbery region in general it increases slightly [161]. Figure 19a, b compares the storage modulus as well as tan d for various nanocomposites prepared from EVA rubber having 50% vinyl acetate content and loaded with MWCNT, as a function of temperature [162].

For instance, the Toyota research groups [2] were the first to show the influence of nanoclays on the mechanical properties of polymers. They have introduced nylon-6/clay nanocomposites by the in situ method and observed that such nanocomposites exhibit 40% improvement in tensile strength, 60% in flexural strength, 68% in tensile modulus, and 126% in flexural modulus as compared to pristine polymer [4]. Ganter et al. [109, 110] have prepared rubber nanocomposites based on SBR and BR containing o-MMT.

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