Research output: Contribution to journal › Article
The correlation between elongation at break and thermal decomposition of aged EPDM cable polymer. / Sarac, T.; Devaux, J.; Quiévy, Nicolas; Goussarov, Andrei; Konstantinovic, Milan.
In: Radiation Physics and Chemistry, Vol. 132, 12.10.2016, p. 8-12.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The correlation between elongation at break and thermal decomposition of aged EPDM cable polymer
AU - Sarac, T.
AU - Devaux, J.
AU - Quiévy, Nicolas
AU - Goussarov, Andrei
AU - Konstantinovic, Milan
N1 - Score=10
PY - 2016/10/12
Y1 - 2016/10/12
N2 - The effect of simultaneous thermal and gamma irradiation ageing on the mechanical and physicochemical properties of industrial EPDM was investigated. Accelerated ageing, covering a wide range of dose rates, doses and temperatures, was preformed in stagnant air on EPDM polymer samples extracted from the cables in use in the Belgian nuclear power plants. The mechanical properties, ultimate tensile stress and elongation at break, are found to exhibit the strong dependence on the dose, ageing temperature and dose rate. The thermal decomposition of aged polymer is observed to be the dose dependent when thermogravimetry test is performed under air atmosphere. No dose dependence is observed when thermal decomposition is performed under nitrogen atmosphere. The thermal decomposition rates are found to fully mimic the reduction of elongation at break for all dose rates and ageing temperatures. This effect is argued to be the result of thermal and radiation mediated oxidation degradation process.
AB - The effect of simultaneous thermal and gamma irradiation ageing on the mechanical and physicochemical properties of industrial EPDM was investigated. Accelerated ageing, covering a wide range of dose rates, doses and temperatures, was preformed in stagnant air on EPDM polymer samples extracted from the cables in use in the Belgian nuclear power plants. The mechanical properties, ultimate tensile stress and elongation at break, are found to exhibit the strong dependence on the dose, ageing temperature and dose rate. The thermal decomposition of aged polymer is observed to be the dose dependent when thermogravimetry test is performed under air atmosphere. No dose dependence is observed when thermal decomposition is performed under nitrogen atmosphere. The thermal decomposition rates are found to fully mimic the reduction of elongation at break for all dose rates and ageing temperatures. This effect is argued to be the result of thermal and radiation mediated oxidation degradation process.
KW - EPDM
KW - Thermogravimetry
KW - Ageing
KW - Gamma irradiation;
KW - Mechanical properties;
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/35098596
U2 - 10.1016/j.radphyschem.2016.10.017
DO - 10.1016/j.radphyschem.2016.10.017
M3 - Article
VL - 132
SP - 8
EP - 12
JO - Radiation Physics and Chemistry
JF - Radiation Physics and Chemistry
SN - 0969-806X
ER -
ID: 5528541