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Studying the Effect of Nano-Diamond Into Physical & Mechanical Properties of Elastomer Composites (NR/SBR & SBR)

Razzagh Khosh Boresh, Mohsen | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 43577 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Shojaei, Akbar
  7. Abstract:
  8. Nanotechnology inrecent yearshas attractedthe attention of manyscientists and industrialists. Having atiny structure with extraordinary properties of nanoparticlesin the fields of electrical, mechanical and thermal, leading to their use isgrowing and newer application sarebeing found forth eseparticles. One of them Nanodiamond powderiswidely usedin the industryhas found wideapplication. Among these can be used in electrochemistry, chemical coatings, pastesand suspensions, add thepolymer, ceramic and industrial rubber and adhesives,adsorbentsand catalysts, filters and membranes, and finally cancer treat mentnoted. One of these applicationsisinPolymers and Rubber Industry. According to earlier research, in order togeta more complete review and comparison of diamond particlestoboostrubbermatrixNR / SBR and SBRwere used. There in forcing particles by mechanical mixing with the rubbermatrixweremixed. Inseveraltests, including testcuring kinetics, scanning electron microscopy imaging, mechanical properties, abrasionand swelling properties of the sampleswere taken. The aim of thisstudy was to investigatethe effect of different rubber matrix with a common amplifier and however,analysis of the behavior and interaction with the diamondparticlesin the rubber matrix with reinforcing particles such as carbon nanotubes and carbon black has been. The result ssuggest that the diamond particles interact better with rubber NR / SBR and the appropriate link-layer rubber, SBR blend was more significant improvement in the combination and in all testsdone by adding a small amount of nano-diamond, high mechanical and rheological proper ties were achieved. As the polarity distribution of nano-diamonds and natural rubber was better than SBR rubber,also adding diamond particles, reducing the 52%inflation rateand a500% increase in cross linkingdensitywere followed, Diamond nanoparticlescuringrateincreasedfrom20 to100%. Intestsof mechanical properties, the addition of the particles was increasedby 300% in the Young’smodulusand increased20%relaxation time. On curing kinetics model topredict the time and rate of curing, modeling was performed
  9. Keywords:
  10. Nanocomposite ; Nanodiamond ; Natural Rubber ; Reinforcement ; Styrene Butadiene Latex (SBR)

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