Zinc salts induced ionomeric thermoplastic elastomers based on XNBR and PA12

ABSTRACT

Ionomeric TPEs of XNBR and PA12 have been prepared in presence of various zinc salts such as Zinc oxide (ZnO), Zinc peroxide (ZnO₂) and combination of (ZnO+ZnO₂). Curing study of XNBR in presence of ZnO, ZnO₂ and (ZnO+ZnO₂) depicts a significant difference in torque values which suggests the formation of both ionic and covalent linkages for ZnO₂ crosslinked XNBR whereas the only ionic crosslink formation takes place for ZnO crosslinked XNBR. Further morphology study by scanning electron microscopy (SEM), atomic force microscopy (AFM), physicomechanical properties, dynamic mechanical thermal analysis (DMTA), rheological study and swelling study also supports the above phenomenon.

Graphical Abstract

KEYWORDS:

• Thermoplastic elastomers
• ionomers
• zinc peroxide
• zinc oxide

Acknowledgments

We thank Dr. Regine Boldt (IPF Dresden) for the morphology characterization by SEM. Thanks to Mr. Andreas Janke (IPF Dreesden) for morphology study through AFM and also thanks to Mrs. Anna Ivanov for the rheological study. Thanks to Professor Norbert Vennemann (University of Applied Sciences Osnabruck, Germany) for his valuable guidance and help to carry out the TSSR test. Also thanks to Dr. A. Leuteritz, Dr. K.W. Stöckelhuber, R. Jurk and Mr. SB Eshwaran, Tamil Selvan, Dr. Tahir, for valuable discussions and support.

Data availability

The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.

Additional information

Notes on contributors

T. Chatterjee

T. Chatterjee has already completed his PhD from Indian Institute of Technology.

S. Hait

S. Hait is pursuing his PhD from Leibniz-Institut für Polymerforschung Dresden e.V., HoheStrasse 6, D-01069 Dresden, Germany

A. B. Bhattacharya

A. B. Bhattacharya is pursuing his PhD from Indian Institute of Technology.

A. Das

A. Das is a Scientist at Leibniz-Institut für Polymerforschung Dresden e.V., HoheStrasse 6, D-01069 Dresden, Germany.

S. Wiessner

S. Wiessner is currently the Head of the Department of Elastomers in Leibniz-Institut für Polymerforschung Dresden e.V., HoheStrasse 6, D-01069 Dresden, Germany.

K. Naskar

K. Naskar is currently a faculty at Rubber Technology Centre, Indian Institute of Technology Kharagpur.