Cold-resistant flame-retardant polycarbonate alloy material and preparation method thereof

Abstract

The invention discloses a cold-resistant flame-retardant polycarbonate alloy material. The cold-resistant flame-retardant polycarbonate alloy material is characterized by comprising 100 mass parts of polycarbonate resin, 2 to 30 mass parts of toughening agent, 3 to 20 mass parts of flame retardant, 1 to 5 mass parts of flame-retardant synergist, 0 to 2 mass parts of antioxidant, and 0 to 3 mass parts of weather-resistant agent. The cold-resistant flame-retardant polycarbonate alloy material has high flame-retardant efficiency, good low-temperature impact resistance and good weather resistance.

Description

A kind of cold-resistant flame-retardant polycarbonate alloy material and preparation method thereof technical field The invention relates to the modification and preparation of a polycarbonate alloy material, in particular to a cold-resistant and flame-retardant polycarbonate alloy material and a preparation method thereof. Background technique Polycarbonate is a commonly used engineering plastic with excellent transparency, electrical insulation and impact resistance. Due to its good mechanical properties, it is widely used in transparent products such as lampshades, see-through lenses, and outdoor decorations. However, due to the influence of its molecular chain structure, the rigidity of the polycarbonate molecular chain is strong, and its low temperature toughness is poor. In the low temperature environment, the molecular chain of polycarbonate will become rigid, and its low temperature impact resistance is poor. Therefore, it is necessary to add a toughening agent t...

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Problems solved by technology

At present, the toughening of polycarbonate is mainly achieved by adding additives such as styrene copolymers and polyolefin elastomers. However, the compatibility of styrene copolymers and polyolefin elastomers with polycarbonate is poor, and Its cold resistance is weak, and the low temperature impact resistance of polycarbonate has not been significantly improved.

The existing polycarbonate flame retardants are mainly halogenated flame retardants, phosphorus flame retardants, organosilicon flame retardants and potassium sulfonate flame retardants. Although the above flame retardants can significantly improve the performance of polycarbonate The flame retardant properties of esters, but the addition of toughening agents will significantly reduce the flame retardant properties of the entire system, and the addition of flame retardants will also affect the impact properties of the system, and the low temperature of the above flame retardants The impact resistance is poor, so the low temperature impact resistance of polycarbonate materials is also poor

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