EFFECTS OF OV-POSS NANOPARTICLES ON THE VULCANIZATION KINETICS OF NATURAL RUBBER COMPOUNDS

Uctepe E., Yazici N., KODAL M., KARAAĞAÇ B., Ozkoc G.

MATERIALI IN TEHNOLOGIJE, vol.55, no.6, pp.825-831, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 55 Issue: 6
  • Publication Date: 2021
  • Doi Number: 10.17222/mit.2021.240
  • Journal Name: MATERIALI IN TEHNOLOGIJE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Applied Science & Technology Source, Directory of Open Access Journals
  • Page Numbers: pp.825-831
  • Keywords: natural rubber, POSS, rheology, vulcanization kinetics, POLYHEDRAL OLIGOMERIC SILSESQUIOXANES, CROSS-LINKING, THERMAL-STABILITY, DERIVATIVES
  • Kocaeli University Affiliated: Yes

Abstract

Polyhedral oligomeric silsesquioxanes (POSSs) are new-generation additives, which can provide improved properties of polymer matrices due to physical and/or chemical interactions between the polymer molecules and their reactive sites. In the case of rubber-based polymeric systems, POSSs are also able to accompany a vulcanization reaction. This study aimed to investigate the effect of octavinyl functionalized POSS (OV-POSS) on the sulphur vulcanization of a model natural rubber (NR) based compound. The reaction kinetics was studied using various kinetic approaches based on moving die rheometry and differential scanning calorimetry. Rheometric data was evaluated using a common non-linear cure kinetic model, called the Isayev and Deng Model. The Kissinger, Flynn-Wall-Ozawa and Crane Models were used to evaluate the thermal data for curing reactions. All the models were found to be able to analyze the vulcanization kinetics of OV-POSS containing NR-based rubber compounds as well as the effect of the OV-POSS incorporation.