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https://www.sciencedirect.com/science/article/abs/pii/S0032386122006103

Mohammadi, A ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.1016/j.polymer.2022.125122
  3. Publisher: Elsevier Ltd , 2022
  4. Abstract:
  5. Present work illustrated that the performance of ultrafine silica (Si) particles was improved considerably by rational hybridization with nanodiamond (ND). For this, Si@ND hybrid particles synthesized by chemical hybridization were incorporated into styrene-butadiene rubber (SBR) up to 10 phr. Scanning electron microscopy revealed coarse flower-like clusters for Si@ND nanohybrids, while Si exhibited rigid agglomerates in SBR. Comparing with physical hybrid (Si&ND) and single Si particles, it was revealed that chemical hybrids synergistically improved tensile properties, like 100% and 135% improvements in tensile strength and elongation at break, respectively. Dynamic mechanical analysis of SBR/Si@ND revealed an increment of the wet skid (22%) compared with SBR and further reduction of rolling resistance, to ∼35%, with respect to SBR/Si due to better dispersion and improved polymer-filler interactions. Thermal conductivity of SBR increased considerably, i.e., ∼54%, by the inclusion of Si@10%ND, which was explained based on the promotion of phonon pathways. © 2022 Elsevier Ltd
  6. Keywords:
  7. Mechanical properties ; Nanocomposites ; Nanodiamond ; Nanostructures ; Styrene-butadiene rubber ; Butadiene ; Filled polymers ; Rubber ; Scanning electron microscopy ; Silica ; Styrene ; Tensile strength ; Thermal conductivity ; Chemical hybridization ; Hybrid particles ; Hybrid silica ; Hybridisation ; Mechanical ; Nanohybrids ; Performance ; Styrene/butadiene rubbers ; Synthesised ; Ultra-fine silica particles ; Nanodiamonds
  8. Source: Polymer ; Volume 255 , 2022 ; 00323861 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0032386122006103