Glass fiber reinforced polycarbonate composite material as well as preparation method and application thereof

Abstract

The invention discloses a glass fiber reinforced polycarbonate composite material. The glass fiber reinforced polycarbonate composite material comprises the following components in parts by weight: component A: 70 to 90 parts of polycarbonate; component B: 3 to 55 parts of glass fiber; component C: 0.01 to 1 part of interface bonding agent; component D: 0.01 to 10 parts of antioxidant; and component E: 0.01 to 10 parts of auxiliary antioxidant. The interface bonding agent with specific content and the specifically compounded antioxidant are added in the formula of the glass fiber reinforced polycarbonate composite material, so that the composite material can maintain rigidity and toughness under high-temperature ageing and has high electrical property retention rate to guarantee stable long-term performance and appearance quality during long-term high-temperature environment work and guarantee best performance in the service cycle, and is suitable for the fields of automobiles, electronic and electrical, communication industry, building industry and the like, particularly for 5G communication industry.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a glass fiber reinforced polycarbonate composite material and its preparation method and application. Background technique [0002] Polycarbonate resin PC is a thermoplastic engineering plastic with excellent comprehensive properties. In recent years, its high transparency, good flame retardancy, heat resistance, electrical insulation and dimensional stability, low water absorption and other characteristics have been widely used in automobiles, electronics, communications industries, construction industries, etc. field. With the expansion of its application fields, the impact strength, flexural modulus, tensile strength, fluidity, dielectric loss and other properties of polycarbonate have higher requirements. Pure polycarbonate or ordinary polycarbonate The material still cannot meet the requirements, therefore, the polycarbonate material needs to be modified. In ...

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Problems solved by technology

[0003] However, existing glass fiber-reinforced polycarbonate composites have the disadvantage of being unable to maintain rigidity and toughness at the same time under high-temperature aging in long-term high-temperature environments, and the electrical performance retention rate is not high, so they cannot maintain stable long-term stability in high-temperature environments. Performance and appearance quality, so the best performance during the service cycle cannot be guaranteed, which seriously limits the application of this composite material in the fields of automobile, electronic and electrical, communication industry, construction industry, etc.

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