Thin-wall flame-retardant polycarbonate material, preparation method and applications thereof

Abstract

The invention provides a thin-wall flame-retardant polycarbonate material and a preparation method thereof. The thin-wall flame-retardant polycarbonate material comprises 30-95 parts by weight of polycarbonate (PC), 1-65 parts by weight of polyketone (POK), 0.1-40 parts by weight of a flame retardant, 1-20 parts by weight of a flow modifier and 0-40 parts by weight of optional other additives, wherein the sum of the PC, the POK, the flame retardant, the flow modifier and the optional other additives is 100 parts by weight. According to the invention, the method is simple and easy to implement;and by adding the PC, the POK, the the flame retardant, the flow modifier and the optional other additives, the thin-wall flame-retardant polycarbonate material is prepared, has the advantages of good flowability, excellent flame retardancy and high impact strength, and has wide application prospects in the fields of thin-wall flame-retardant materials for electronics, electrics and the like.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to a thin-walled flame-retardant polycarbonate material and its preparation method and application. Background technique [0002] Polycarbonate PC has the advantages of high impact strength, high light transmittance, excellent mechanical properties, good heat resistance, flame retardancy, and good dimensional stability, but PC also has poor processing fluidity, poor chemical resistance, and non-wear resistance. Disadvantages limit the application of PC materials, and with the rapid development of the electrical and electronic industry, the industry trend of thinning and high integration requires flame-retardant materials to achieve stable flame-retardant at a lower thickness, which has great impact on flame-retardant PC materials. Higher requirements are put forward for fluidity and flame retardancy. [0003] Polyketone POK is a material with excellent fluidity, flame ret...

AI Technical Summary

Problems solved by technology

[0004] The Chinese invention patent "Flame Retardant Polycarbonate Composition" (Patent No. CN 101747609 B) mentioned that by adding polycarbonate, a silicon compound with a silanol content of 1-10% by weight, and an alkali metal or alkaline earth metal compound, a thin-walled resistor can be prepared. Combustible materials, but PC will degrade in the presence of alkali metals, which will affect the performance of the material, and the composition can only achieve 1.5mmV-0 level, which cannot meet the industry's demand for thin-walled flame retardant

[0005] The Chinese invention patent "A Polycarbonate Composition and Application" (Patent No. CN 108342067 A) mentions the preparation of thin-walled flame-retardant materials by adding polycarbonate, sulfonate flame retardants, anti-dripping agents, and mineral fillers, but The maximum melt index of this composition is only 16.1g / 10min (300°C / 1.2kg), which is not a high-flow flame-retardant PC material, and has the disadvantage of insufficient processing fluidity when preparing complex parts or thin-walled parts

[0006] The Chinese invention patent "A Flame Retardant Polycarbonate Composition" (Patent No. CN 106867221 A) mentions that by adding polycarbonate, inorganic matter encapsulating organosilsesquioxane flame retardant, nitrogen flame retardant, Sulfonate flame retardants, etc., have prepared flame-retardant PC materials, but the organic silsesquioxane flame retardants coated with inorganic substances need to be prepared by grinding, modification, drying and other steps separately, which increases the process flow and is not easy to achieve batch production Production

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