Thermal degradation study of functionalized MWNT reinforced segmented polyurethane membrane

Subtrata Mondal, Jinlian Hu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)

Abstract

The thermal degradation of polytetramethylene glycol (PTMG, Mn=2900) based polyurethane (PU), along with four different weight contents (such as 0.25, 0.50, 1.0, and 2.5 wt%) of functionalized multiwalled nanotube (MWNT) reinforced PUs are studied in air as well as in nitrogen atmosphere. The degradation results are reported in 10 and 50% weight loss and derivative of thermogravimetry (DTG). As expected, PUs are thermally more stable in nitrogen than in air. However, the influence of MWNT content on thermal stability is unclear. At 0.25 and 0.50 wt% of MWNT content, thermal stability declined and a further increase of MWNT improved the thermal stability of PU. Fourier-transform infrared (FTIR) analysis is also performed for untreated and heat treated films in order to understand the degradation at different temperatures. Free C=O stretching neck dimension increases with increasing temperature which signifies breaking of H-bonding detected by FTIR measurements.
Original languageEnglish
Pages (from-to)261-271
Number of pages11
JournalJournal of Elastomers and Plastics
Volume38
Issue number3
DOIs
Publication statusPublished - 1 Jul 2006

Keywords

  • Fourier-transform infrared
  • Multiwalled nanotube
  • Polyurethane
  • Thermogravimetry

ASJC Scopus subject areas

  • Materials Science(all)
  • Polymers and Plastics
  • Materials Chemistry

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