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Polymer Bulletin

, Volume 76, Issue 4, pp 1877–1897 | Cite as

Selective cross-linking of carboxylated acrylonitrile butadiene rubber and study of their technological compatibility with poly(ethylene-co-methyl acrlylate) by means of mechanical, thermal, and chemical analysis

  • Poushali Bhawal
  • Tushar Kanti Das
  • Sayan Ganguly
  • Subhadip Mondal
  • Narayan Ch. DasEmail author
Original Paper
  • 119 Downloads

Abstract

Technologically compatible blend becomes an interesting arena of polymer blend industry for their significant properties and fascinating morphologies. This work encompasses the fabrication of technologically compatible blend through melt blending of poly(ethylene-co-methyl acrylate) (EMA) and carboxylated acrylonitrile butadiene rubber (XNBR) in five different ratios to study their compatibility by employing various techniques, like Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and dynamic mechanical thermal analysis (DMTA). To observe the reinforcing effect of blend specific amount of metal oxide, zinc oxide (ZnO) was incorporated into the system. Curing characterization, FTIR, and morphological analysis confirm that ZnO selectively forms cross-link with XNBR through the coordination complex and does not show any substantial effect on EMA. DMTA reveals high-temperature relaxation of the carboxylic salt of XNBR phase which reinforces the EMA/XNBRZnO-cross-linked blends and also verified by FTIR analysis. Although DSC shows single glass transition temperature (Tg) for all blend systems in between the Tg of pure polymer component, DMTA confirms the presence of two different Tg for plastic and rubber phases with close proximity, specifying technological compatibility in blend compounds. Increasing XNBR improves tensile strength of blends by sacrificing elongation at break. Therefore, our aim is to tune and optimize the blend features by judicial mixing of EMA and XNBR to mitigate the blend failure during service tenure and develop a novel technologically compatible blend.

Graphical abstract

Keywords

Technological compatibility Ionic cross-link Carboxylated acrylonitrile butadiene rubber (XNBR) Poly(ethylene-co-methyl acrylate) (EMA) 

Notes

Acknowledgements

This work was funded by the Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Ministry of Science and Technology, Govt. of India (ECR/2016/000048).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Poushali Bhawal
    • 1
  • Tushar Kanti Das
    • 1
  • Sayan Ganguly
    • 1
  • Subhadip Mondal
    • 1
  • Narayan Ch. Das
    • 1
    Email author
  1. 1.Rubber Technology CentreIndian Institute of Technology KharagpurKharagpurIndia

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