THERMOPLASTIC RESIN COMPOSITION FOR INSULATION COMPONENTS, AND INSULATION COMPONENT

摘要

Provided are: a thermoplastic resin composition for insulation components, which is capable of achieving strength characteristic equivalent to or higher than the GWIT 775°C standard in almost all test piece thicknesses for insulation components without requiring blending of a special ingredient that is a liquid crystalline polymer or use of a glass fiber at high blending ratio, while having good balance among the strength characteristic, tracking resistance and mechanical characteristics; and an insulating component which uses the thermoplastic resin composition for insulation components. The thermoplastic resin composition for insulation components is characterized by containing (A) a polybutylene terephthalate resin, (B) a halogen flame retardant, (C) a flame retardant assistant, (D) a mineral filler having a moisture content of 20% by mass or more and a dehydration initiation temperature of 300°C or more and (E) a glass fiber-based reinforcing agent, and is also characterized in that the component (B) is contained in an amount of 15-35 parts by mass per 100 parts by mass of the component (A) and the component (D) is contained in an amount of 2-60 parts by mass per 100 parts by mass of the component (A).