Open AccessEFFECTS OF OV-POSS NANOPARTICLES ON THE VULCANIZATION KINETICS OF NATURAL RUBBER COMPOUNDS
Author(s) -
Ebru Uctepe,
Nazlı Yazıcı,
Mehmet Kodal,
Bağdagül Karaağaç,
Güralp Özkoç
Publication year - 2021
Publication title -
materiali in tehnologije
Language(s) - English
Resource type - Journals
eISSN - 1580-3414
pISSN - 1580-2949
DOI - 10.17222/mit.2021.240
Subject(s) - vulcanization , natural rubber , materials science , curing (chemistry) , rheometry , kinetics , differential scanning calorimetry , polymer , polymer chemistry , chemical engineering , composite material , polymer science , thermodynamics , physics , quantum mechanics , engineering
Polyhedral oligomeric silsesquioxanes (POSSs) are new-generation additives, which can provide improved properties in polymer matrices by 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 with the vulcanization reaction. In this study, it was aimed to investigate the effect of octavinyl functionalized POSS (OV-POSS) on sulphur vulcanization of a model natural rubber (NR) based compound. The reaction kinetics was studied by using various kinetic approaches based on Moving Die Rheometry and Differential Scanning Calorimetry. Rheometric data was evaluated by using a common non-linear cure kinetic model, which is called Isayev and Deng Model. Kissinger, Flynn-Wall-Ozawa, and Crane Models were used to process thermal data for curing reactions. All the models were found to be able to analyze vulcanization kinetics of OV-POSS containing NR-based rubber compounds as well as the effect of OV-POSS incorporation.