Preparation and properties of natural rubber/organo-montmorillonite: from lab samples to bulk material

Authors

  • Aleksandra Ivanoska-Dacikj Faculty of Technology and Metallurgy, Ss Cyril and Methodius University, Skopje
  • Gordana Bogoeva-Gaceva Faculty of Technology and Metallurgy, Ss Cyril and Methodius University, Skopje
  • Aleksandra Buzarovska Faculty of Technology and Metallurgy, Ss Cyril and Methodius University, Skopje
  • Igor Gjorgjiev Institute of Earthquake Engineering and Engineering Seismology, IZIIS, Ss Cyril and Methodius University, Skopje
  • Luljeta Raka Faculty of Natural Sciences and Mathematics, State University of Tetovo, Tetovo

DOI:

https://doi.org/10.20450/mjcce.2014.502

Keywords:

organo-montmorillonite, nanocomposites, natural rubber, dynamic properties

Abstract

Focusing on application aspects of the rubber nanocomposites and the production and testing of industrial-sized samples, this study was performed in two phases. First, natural rubber (NR)/organo-montmorillonite (OMMT) nanocomposites containing 2–14 phr OMMT were prepared on a laboratory-sized two-roll mill. The vulcanization behavior and mechanical properties of NR/OMMT composites were compared with a referent NR compound containing 60 phr carbon black (N330) as a reinforcing filler. The x-ray diffraction (XRD) analyses showed a predominant intercalated structure for all OMMT nanocomposites. As a result, the organoclay behaved as an effective reinforcement for NR, even at loadings as low as 2 phr. This nanocomposite exhibited an improvement in tensile strength of 29% and in elongation at break of 61% in comparison with the referent NR/N330 compound. With the estimated optimal filler content, in the second phase, bulk NR/OMMT-5/steel samples were successfully produced for dynamic testing. The dynamic moduli were investigated by the method of forced vibrations. Compared to the NR/N 330 samples, NR/OMMT-5 samples showed improved hysteresis, with very low dissipating energy per cycle and significantly reduced Mullins effect.

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Published

2014-09-15

How to Cite

Ivanoska-Dacikj, A., Bogoeva-Gaceva, G., Buzarovska, A., Gjorgjiev, I., & Raka, L. (2014). Preparation and properties of natural rubber/organo-montmorillonite: from lab samples to bulk material. Macedonian Journal of Chemistry and Chemical Engineering, 33(2), 249–265. https://doi.org/10.20450/mjcce.2014.502

Issue

Vol. 33 No. 2 (2014)

Section

Polymers

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