Textural, surface and chemical properties of polyvinyl chloride particles degraded in a simulated environment

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Chih-Cheng Tang
  • Huey-Ing Chen
  • Peter Brimblecombe
  • Chon-Lin Lee

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)392-401
Journal / PublicationMarine Pollution Bulletin
Volume133
Online published19 Jun 2018
Publication statusPublished - Aug 2018

Abstract

Virgin polyvinyl chloride (PVC) particles were exposed to heat, ultraviolet B (UVB) and solar radiation either in artificial seawater or in air for different periods of time. The surface and chemical properties of fresh and degraded particle surfaces were determined via image analysis using scanning electron micrographs, a Brunauer-Emmett-Teller (BET) specific surface area analyzer and infrared spectroscopy. Thermal and UVB degradation resulted in unique PVC morphologies. In addition, the increased presences of functional groups were evident as dehydrochlorination and oxidation during the degradation process, which altered the chemical properties of PVC. In contrast, under solar exposure with or without seawater, unevenness to the surface was noted that seems to originate from degradation of the PVC surface; in addition, no new functional groups were found. This suggests that the chemical properties of PVC are stable over extended periods in the marine environment.

Research Area(s)

  • Environmental degradation, Marine debris, Marine plastics, Surface morphology, Thermal degradation, Ultraviolet B (UVB) radiation degradation

Citation Format(s)

Textural, surface and chemical properties of polyvinyl chloride particles degraded in a simulated environment. / Tang, Chih-Cheng; Chen, Huey-Ing; Brimblecombe, Peter et al.
In: Marine Pollution Bulletin, Vol. 133, 08.2018, p. 392-401.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review