ELASTOMERS AND PLASTICS Changes in heat resistant properties of LLDPE by gamma ray pre-irradiation evaluated by weight change

The weight change of LLDPE that contains different concentration of the antioxidant reagent by thermal aging was studied at constant temperatures ranging from 110⁰C to 170⁰C. 

Electric wire and cable used in the container vessel of nuclear power plant are exposed to low dose rare radiation and to relatively modest heat during its working period. Loss of coolant accident (LOCA) in Fukushima Daiichi Nuclear Power Station at 11 March 2011 brought about thermal degradation of materials in container vessel of nuclear power plant.