Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 64: Issue 2
Ageing Monitoring of Plastics Used in Nuclear Power Plants by DSC
Authors:
B. Bartoníček Nuclear Research Institute Řež plc Department of Radiation Chemistry and Environmental Qualification 250 68 Řež Czech Republic 250 68 Řež Czech Republic

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V. Hnát Nuclear Research Institute Řež plc Department of Radiation Chemistry and Environmental Qualification 250 68 Řež Czech Republic 250 68 Řež Czech Republic

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V. Plaček Nuclear Research Institute Řež plc Department of Radiation Chemistry and Environmental Qualification 250 68 Řež Czech Republic 250 68 Řež Czech Republic

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Pages:
571–576
Online Publication Date:
02 Nov 2004
Publication Date:
01 May 2001
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1011507403569
Keywords:
cable; differential scanning calorimetry; lifetime; plastics; qualification
Restricted access

Abstract  

Degradation of polymeric materials used in nuclear power plants (NPP), especially polymeric cable insulation materials, in the course of their service can be monitored by measuring their properties by DSC, mainly oxidative induction time — OIT. The studied materials were in-laboratory aged by applying main stressors that act in NPP — ionising radiation and temperature. The dependence of OIT on radiation and thermal degradation of polymeric material was determined. The OIT values have been compared to elongation at break as a property that directly reflects the functionality of the studied material. The comparison of monitored OIT of real cable samples taken from NPP with dependencies on how the OIT values change with the elongation at break, makes possible to establish the extent of cable degradation. This method can be considered as a suitable and effective technique for lifetime assessment not only of cable insulations but also of many other plastics.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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