Effective devulcanization of ground tire rubber using choline chloride-based deep eutectic solvents

Ricky Saputra, Rashmi Walvekar, Mohammad Khalid, Kaveh Shahbaz, Suganti Ramarad

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The effect of deep eutectic solvents (DES) in devulcanization of ground tire rubber (GTR) was explored for the first time in this work. Three different DESs, namely ChCl:Urea, ChCl:ZnCl 2 and ZnCl 2 :Urea were prepared and their physicochemical properties were examined. GTR was mixed with various DESs which were further sonicated and heated at various time intervals. The treated GTR was analyzed by energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscope (FESEM) and thermogravimetric analysis (TGA). Additionally, the extent of devulcanization was assessed using soluble fraction, cross-link density and related by Horikx theory. The relation between DESs' viscosities towards devulcanization efficiency was also evaluated.

Original languageEnglish
Article number103151
JournalJournal of Environmental Chemical Engineering
Volume7
Issue number3
Early online date10 May 2019
DOIs
Publication statusPublished - Jun 2019

Keywords

  • crosslink density
  • deep eutectic
  • Devulcanization
  • ground tire rubber
  • solvents

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Waste Management and Disposal
  • Pollution
  • Process Chemistry and Technology

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