Aging Behavior of Flame-retardant Cross-linked Polyolefin under Thermal and Radiation Stresses
Hao‐Long Zhou, Wakana Hanafusa, Keigo Udo, Naoshi Hirai, Yoshimichi Ohki
Abstract
In this study, flame-retardant cross-linked polyolefin, which is an important polymeric insulation material for electric power cables, is aged under severe thermal and radiation stresses. After aging, the samples are analyzed mechanically, thermally, and electrically. The degradation of this polymer is found to become very severe when it is aged thermally than when aged by a combination of heat and gamma irradiation. The formation of densely cross-linked structures, induced by the gamma irradiation, appears to make the polymer harder and more resistant against oxidation and against its resultant scission of chemical bonds.
Topics & Concepts
PolyolefinFire retardantMaterials scienceComposite materialPolymerIrradiationDegradation (telecommunications)RadiationThermalForensic engineeringPhysicsMeteorologyQuantum mechanicsNuclear physicsLayer (electronics)EngineeringTelecommunicationsComputer scienceHigh voltage insulation and dielectric phenomenaPolymer Nanocomposites and PropertiesNatural Fiber Reinforced Composites