HIGHLY STABILIZED FLAME RETARDED POLYOLEFIN INSULATION COMPOUNDS

摘要

Polyolefin compounds used in many residential and industrial wire insulations are often required to have a balance of properties in electrical, physical, processability, and flame retardancy to meet material specifications. In applications which demand high service temperatures and thermal stability, these compounds are further crosslinked either chemically or with irradiation, and stabilized with high levels of antioxidants.rnStrategies to design flame retarded (FR) insulation materials with a specific target for a 150℃ rated appliance wire insulation is the subject of this paper. Approaches to use different technologies in FR, antioxidants (AO), and crosslinking to achieve a balance of properties are discussed as well as the effects of base resin, halogenated vs. non-halogenated FR additives, and copper catalyzed thermal degradation. Experimental design was used to optimize the compound's performance in oven aging and cure efficiency.