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Analysis of structure-properties relationship in nitrile-butadiene rubber/phenolic resin/organoclay ternary nanocomposites using simple model system

Shojaei, A ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1002/pat.1435
  3. Publisher: 2010
  4. Abstract:
  5. The present study deals with the structure-property relationship of organoclay (OC) filled nanocomposites based on rubber blend comprising of nitrile-butadiene rubber (NBR) and phenolic resin (PH). To obtain a better insight into the characteristics of the NBR/PH/OC hybrid system, a simple model system consisting of NBR/OC nanocomposites is also taken into consideration. A series of NBR/OC and NBR/PH/OC nanocomposites containing a wide range of OC concentrations (2.5-30 phr) are prepared by using traditional open two-roll mill. Structural analysis performed by X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope (TEM) exhibits mixed exfoliated and intercalated morphology at low OC content, below 7.5 phr, and a well-ordered intercalated morphology at higher OC loading. It is shown that the dispersion of OC is also influenced by mixing time and order of mixing of components. Analysis of the cure characteristics, mechanical, and thermal properties of both the NBR/OC and NBR/PH/OC nanocomposites reveals that the OC is dispersed mainly in the NBR continuous phase, even though some is likely localized in the rubber-resin interface
  6. Keywords:
  7. Organoclay ; Phenolic resin ; Rubber ; Continuous phase ; Cure characteristics ; Mixing time ; Nitrile butadiene rubber ; Rubber blends ; Scanning electron microscopes ; Simple model ; Structure property relationships ; Structure-properties relationships ; Ternary nanocomposites ; Thermal properties ; Transmission electron microscope ; Two-roll mill ; Butadiene ; Cyanides ; Electron microscopes ; Hybrid systems ; Mechanical properties ; Morphology ; Phase interfaces ; Phenols ; Plastics ; Range finding ; Resins ; Thermodynamic properties ; X ray diffraction ; X ray diffraction analysis ; X ray microscopes ; Nanocomposites ; Dispersion ; Structural analysis ; Structural property ; Synthetic rubber ; Thermal property
  8. Source: Polymers for Advanced Technologies ; Volume 21, Issue 5 , April , 2010 , Pages 356-364 ; 10427147 (ISSN)
  9. URL: http://onlinelibrary.wiley.com/doi/10.1002/pat.1435/abstract;jsessionid=32B082C56BABF07FC78CEA9E5330D8F9.f04t03