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Model studies on phenolic antioxidant role in radiation - and thermally - induced accelerated degradation of electrical cable insulation

Treść / Zawartość
Identyfikatory
Warianty tytułu
Konferencja
Proceedings of the International Conference on Development and Applications of Nuclear Technologies NUTECH-2011, 11-14 September 2011, Kraków, Poland
Języki publikacji
EN
Abstrakty
EN
The main objective of this work was to establish a correlation between radiation- and thermally-induced changes in polyethylene and the amount of compounded phenolic antioxidant (Irganox 1035). Radiation yield of oxygen consumption, oxidative induction time and gel fraction allowed to estimate the utility of the applied experimental methods to monitor oxidative aging of the polymeric material from the standpoint of cable and wire degradation in nuclear power plants. It was found that the phenolic antioxidant not only inhibits chain oxidation but also changes the mechanisms of radical processes influencing significantly capability of polyethylene towards thermally-induced cross-linking.
Słowa kluczowe
Czasopismo
Rocznik
Strony
485--489
Opis fizyczny
BIbliogr. 10 poz., rys.
Twórcy
autor
autor
  • Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: +48 22 504 1094, Fax: +48 22 811 1532, g.przybytniak@ichtj.waw.pl
Bibliografia
  • 1. Bartonicek B, Hnat V, Placek V (1999) Radiation ageing of polymers. Czech J Phys 49:485–491
  • 2. Budrugeac P, Segal E (1998) Changes in the mechanical properties and thermal behavior of LDPE in response to accelerated thermal aging. J Therm Anal 53:801–808
  • 3. Celina M, Gillen TK, Clough RL (1998) Inverse temperature and annealing phenomena during degradation of cross-linked poliolefins. Polym Degrad Stab 61:231–244
  • 4. Epacher E, Tolveth J, Krohnke C, Pukanszkya B (2000) Processing stability of high density polyethylene: effect of adsorbed and dissolved oxygen. Polymer 41:8401–8408
  • 5. Gugumus F (2002) Re-examination of the thermal oxidation reactions of polymers 2. Thermal oxidation of polyethylene. Polym Degrad Stab 76:329–340
  • 6. Gugumus F (2007) Thermolysis of polyethylene hydroperoxides in melt. Part 9: Re-examination of the experimental kinetics of hydroperoxide decomposition. Polym Degrad Stab 92:2121–2134
  • 7. Information sheet (1999) Ciba Specialty Chemicals Inc
  • 8. Maier C, Clafut T (1998) Polypropylene – the definitive user’s guide and databook. Plastics Design Library,Norwich, NY
  • 9. Mueller W, Jakob I (2003) Oxidative resistance of high-density polyethylene geomembranes. Polym Degrad Stab 79:161–172
  • 10. Placek V, Bartonicek B, Hnat V, Otahal B (2003) Dose rate effect in radiation degradation of polymer-based cable material. Nucl Instrum Methods B 208:448–453
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ8-0023-0037
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