This invention provides a highly flame-retardant PBT/PC alloy material for the ESD function of new energy BMS (Battery Management System) housings and a method for its preparation. The raw materials of the PBT/PC alloy material, in terms of weight percentage, include: 20% to 40% PBT resin, 5% to 20% PC resin, 30% to 40% irregularly shaped glass fiber, 5% to 14% main flame retardant, 1% to 6% synergistic flame retardant, 0.5% to 5% compatibilizer, 1% to 10% composite toughening agent, 1% to 6% composite antistatic agent, 0.6% to 1% composite nucleating agent, 0.1% to 1% composite main antioxidant, 0.1% to 0.5% auxiliary antioxidant, 0.1% to 1% transesterification inhibitor, 0.2% to 2% composite lubricant, 0.3% to 2% flow modifier, and 1% to 3% black dye. The shear mode of the twin-screw extruder is set to a medium-low shear, high-dispersion screw configuration. The above components are then heated, melted, and extruded into granules in the specified proportions using the twin-screw extruder to obtain the highly flame-retardant PBT/PC alloy material for the ESD function of new energy BMS housings.
Country Code: CN
Application Number: CN202311814590.7
