Developing radiation tolerant polymer nanocomposites using C 60 as an additive

J. H. Christian, J. A. Teprovich, J. Wilson, J. C. Nicholson, T. T. Truong, M. R. Kesterson, Josef Aaron Velten, I. Wiedenhöver, L. T. Baby, M. Anastasiou, N. Rijal, A. L. Washington

Research output: Contribution to journalArticle

Abstract

In nuclear facilities utilizing plutonium, polymeric materials are subjected to long-term, close-contact, and continuous α radiation exposure, which can lead to compounding material degradation and eventual failure. Herein we model the attenuation of α particles by linear-low-density polyethylene (LLDPE), polyvinyl alcohol (PVA) thin films, and C 60 using Monte Carlo N-Particle Extended (MCNPX) software. The degradation of these materials was investigated experimentally by irradiating them with a beam of α particles of 5.8 MeV energy at a tandem Van de Graaff accelerator delivering a dose rate of 2.95 × 10 6 rad s -1 over a 7.1 mm 2 sample area. Our development of a method to test α particle-induced material degradation using a tandem accelerator is significant as degradation from naturally occurring α sources (i.e. Pu, Am) occurs too slowly for these sources to be used in practical experiments. Our results show that PVA nanocomposites containing 5 wt% C 60 were found to withstand about 7 times the α dose of undoped PVA films before a puncture in the film was detected. When these films were adhered to a LLDPE sheet the dual layer polymer was capable of withstanding about 13 times the dose of LLDPE and nearly twice the dose of the doped PVA thin film alone. Doping polymers with C 60 is an attractive way to generate more durable, radiation tolerant materials without increasing the thickness of the material which would lead to greater waste for disposal. Thus, the results herein help to resolve a prevalent technical challenge faced in nuclear facilities that utilize polymeric materials for nuclear processing and disposal.

Original languageEnglish (US)
Pages (from-to)40785-40792
Number of pages8
JournalRSC Advances
Volume6
Issue number47
DOIs
StatePublished - Jan 1 2016

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Polyvinyl Alcohol
Polyvinyl alcohols
Nanocomposites
Polymers
Linear low density polyethylenes
Radiation
Degradation
Van de Graaff accelerators
Plutonium
Thin films
Waste disposal
Particle accelerators
Doping (additives)
Processing
Experiments

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Christian, J. H., Teprovich, J. A., Wilson, J., Nicholson, J. C., Truong, T. T., Kesterson, M. R., ... Washington, A. L. (2016). Developing radiation tolerant polymer nanocomposites using C 60 as an additive RSC Advances, 6(47), 40785-40792. https://doi.org/10.1039/c6ra01126h

Developing radiation tolerant polymer nanocomposites using C 60 as an additive . / Christian, J. H.; Teprovich, J. A.; Wilson, J.; Nicholson, J. C.; Truong, T. T.; Kesterson, M. R.; Velten, Josef Aaron; Wiedenhöver, I.; Baby, L. T.; Anastasiou, M.; Rijal, N.; Washington, A. L.

In: RSC Advances, Vol. 6, No. 47, 01.01.2016, p. 40785-40792.

Research output: Contribution to journalArticle

Christian, JH, Teprovich, JA, Wilson, J, Nicholson, JC, Truong, TT, Kesterson, MR, Velten, JA, Wiedenhöver, I, Baby, LT, Anastasiou, M, Rijal, N & Washington, AL 2016, ' Developing radiation tolerant polymer nanocomposites using C 60 as an additive ', RSC Advances, vol. 6, no. 47, pp. 40785-40792. https://doi.org/10.1039/c6ra01126h
Christian JH, Teprovich JA, Wilson J, Nicholson JC, Truong TT, Kesterson MR et al. Developing radiation tolerant polymer nanocomposites using C 60 as an additive RSC Advances. 2016 Jan 1;6(47):40785-40792. https://doi.org/10.1039/c6ra01126h
Christian, J. H. ; Teprovich, J. A. ; Wilson, J. ; Nicholson, J. C. ; Truong, T. T. ; Kesterson, M. R. ; Velten, Josef Aaron ; Wiedenhöver, I. ; Baby, L. T. ; Anastasiou, M. ; Rijal, N. ; Washington, A. L. / Developing radiation tolerant polymer nanocomposites using C 60 as an additive In: RSC Advances. 2016 ; Vol. 6, No. 47. pp. 40785-40792.
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