Thermo-oxidative ageing of composites based on polybutylene terephthalate and a highly dispersed Fe-FeO mixture

摘要

At present, most polymer composites used in electronic engineering, the motor industry, and electronics undergo the action of different factors. The main destructive factor is the combined action of heat and oxygen. In this case there is a change in the properties of the composite materials with time. Such change in the main service characteristics of articles is due to ageing of the material under the action of temperature and oxygen, leading to the occurrence of different physicochemical processes in the matrix of the polymer composites [1,2]. To retain the service properties of polymeric materials, a number of stabilisers - inhibitors of thermo-oxidative degradation - have now been developed. In particular, for polyolefins, high efficiency in this regard has been shown by highly dispersed Fe-FeO mixtures [3].