High CTI brominated flame-retardant reinforced PBT material and preparation method thereof

Abstract

The invention provides a high CTI brominated flame-retardant reinforced PBT material and a preparation method thereof. The brominated flame-retardant reinforced PBT material comprises the following ingredients: 35-65 wt% of PBT resin, 6-20 wt% of brominated fire retardant, 2-7 wt% of fire-resisting synergistic agent, 1-10 wt% of nitrogen containing compound, 1-5 wt% of strontium compound, 15-40 wt% of glass fiber, 0.1-1 wt% of antioxidant and 0.1-1 wt% of lubricant. The brominated flame-retardant reinforced PBT material disclosed in the invention has high CTI value, high flame resistance, excellent mechanical property, simultaneously has superior characteristics of no precipitation and high GWIT value.

Description

technical field

[0001] The invention relates to a brominated flame-retardant reinforced PBT material with a high CTI value and a preparation method thereof, which can be used for manufacturing electronic and electrical equipment and belongs to the technical field of polymer materials. Background technique

[0002] As one of the five major engineering plastics, polybutylene terephthalate (PBT) has excellent mechanical properties, weather resistance, heat resistance, chemical solvent resistance, fatigue resistance and creep resistance, fast crystallization and easy molding , good dimensional stability. Modified PBT products are widely used in many fields such as computer fans, energy-saving lamps, auto parts, connectors and connectors, relay industries, motor brackets and coil skeletons, beauty and hairdressing products, copiers and printers.

[0003] In some electronic and electrical fields, high tracking resistance has become a hot spot and difficulty in the research and de...

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