Mechanisms of stabilisation of high density polyethylene against oxidation using highly dispersed Fe–FeO mixtures

摘要: AbstractThe resistance of high density polyethylene to thermal oxidation has been improved by addition highly dispersed particles Fe–FeO. Specimens were exposed aging in air at 80°C, and their mechanical behaviour under tensile stress was then investigated. It shown that Fe–FeO acted as a stabiliser for polyethylene, improving its stability properties. The factors responsible these improvements an increase the amount interphase between crystalline amorphous phases, decreased crystallite size, increased network entanglement density.