Controlled Release of Metal Ion Cross-Linkers and Development of Self-Healable Epoxidized Natural Rubber

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Subhradeep Mandal - , Professur für Elastomere Werkstoffe (gB IPF), Indian Institute of Technology Kharagpur, Leibniz-Institut für Polymerforschung Dresden (Autor:in)
  • Frank Simon - , Leibniz-Institut für Polymerforschung Dresden (Autor:in)
  • Shib Shankar Banerjee - , Leibniz-Institut für Polymerforschung Dresden (Autor:in)
  • Lewis B. Tunnicliffe - , Aditya Birla Group (Autor:in)
  • Charoen Nakason - , Prince of Songkla University (Autor:in)
  • Chayan Das - , Visvesvaraya National Institute of Technology (Autor:in)
  • Mithun Das - , Indian Institute of Technology Kharagpur (Autor:in)
  • Kinsuk Naskar - , Indian Institute of Technology Kharagpur (Autor:in)
  • Sven Wiessner - , Professur für Elastomere Werkstoffe (gB IPF), Leibniz-Institut für Polymerforschung Dresden (Autor:in)
  • Gert Heinrich - , Professur für Elastomere Werkstoffe (gB IPF), Leibniz-Institut für Polymerforschung Dresden (Autor:in)
  • Amit Das - , Leibniz-Institut für Polymerforschung Dresden, Tampere University (Autor:in)

Abstract

Chemical cross-linking of rubber is a process to significantly modify the physical properties of the polymer. By this transformation, a highly viscous rubber compound is converted into an elastomer suitable for high-performance products like tires. Conventionally, sulfur or peroxide cross-linking is the preferred mode of vulcanization of the polymer practiced by different rubber industries. To fulfill the growing demand for more durable, high-performance rubber products, the development of self-healing rubber is considered one of the most promising approaches. The present study is an endeavor to mimic self-healing property in commercial epoxidized natural rubber (ENR) utilizing a mechanism that ensures the continuous supply of the healing agent to the affected area. With the advancement of metal coordination as a means of network structure, here, we report for the first time a different method for the preparation of self-healable ENR using mixed metals ions and diamine as cross-linking agents. The availability of a nitrogen coordination site of the diamine along with the reactivity of the oxirane group of epoxidized natural rubber toward metal ions enables the re-establishment of cross-linking sites in a damaged polymer network. A slow release of the metal ions from the metal amine complex to the ultra-active oxirane groups assists this reformation of the network. Additionally, some of the physical properties of the metal ion cross-linked samples are found to be comparable with those of conventional sulfur cross-linked samples.

Details

OriginalspracheEnglisch
Seiten (von - bis)1190-1202
Seitenumfang13
FachzeitschriftACS applied polymer materials
Jahrgang3
Ausgabenummer2
PublikationsstatusVeröffentlicht - 12 Feb. 2021
Peer-Review-StatusJa

Externe IDs

ORCID /0000-0003-0967-4557/work/173054846

Schlagworte

Schlagwörter

  • coordination network, curative feeding, epoxidized natural rubber, metal ion complex, self-healing rubber, viscoelastic mechanical properties