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Long-term performance of cables based on chlorosulphonated polyethylene
KTH, Superseded Departments, Polymer Technology.
2004 (English)In: Polymer degradation and stability, ISSN 0141-3910, E-ISSN 1873-2321, Vol. 86, no 2, 331-338 p.Article in journal (Refereed) Published
Abstract [en]

Cables based on chlorosulphonated polyethylene were aged at different temperatures between 120 and 200 degreesC and their conditions were assessed by mechanical methods: micro-indenter and tensile testing. Some of the cables were not aged prior to the oven ageing whereas other cables had been exposed to almost 25 years of service at controlled temperatures (30-54 degreesC) and atmospheres (nitrogen and air). An indenter modulus twice that of the initial value was used as a lifetime criterion; the criterion is based on earlier reported data on similar cables from LOCA tests simulating nuclear power plant failure. The remaining lifetime of the cables exposed to almost 25 years of service was determined by a second-stage ageing at 155 and 170 degreesC and a comparison with lifetime data obtained for unexposed cable samples. The lifetime data, covering a very broad range of temperatures (40-200 degreesC), obeyed the Arrhenius law with the following values for the activation energy depending on the surrounding atmosphere: I I I +/- 5 (nitrogen) and 96 +/- 5 U mol(-1) (air). Air was found to be a more degrading environment than nitrogen at all the temperatures studied.

Place, publisher, year, edition, pages
2004. Vol. 86, no 2, 331-338 p.
Keyword [en]
cable, chlorosulphonated polyethylene, accelerated ageing, 25 years ageing, extrapolation, thermal-degradation, aging data
National Category
Polymer Technologies
URN: urn:nbn:se:kth:diva-23852DOI: 10.1016/j.polymdegradstab.2004.02.017ISI: 000224844100016ScopusID: 2-s2.0-4944256265OAI: diva2:342551
QC 20100525 QC 20110916Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-09-16Bibliographically approved

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Gedde, Ulf W.
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