A kind of transparent flame-retardant polycarbonate composite material and preparation method thereof

Abstract

The invention discloses a transparent flame-retardant polycarbonate composite material. Through the compounding of two kinds of polycarbonate with a specific weight-average molecular weight range and the compounding of a selected flame retardant with a specific content, not only good flame-retardant properties can be achieved. Effect and moisture and heat aging resistance, and can maintain good transparency.

Description

A kind of transparent flame retardant polycarbonate composite material and preparation method thereof technical field The present invention designs polymer material technical field, particularly relates to a kind of transparent flame retardant polycarbonate composite material and its preparation method. Background technique [0002] Polycarbonate (PC) is widely used in the transportation industry, electronic equipment and other fields, and needs to have good transparency. Degree colleagues have good flame retardant properties. [0003] Chinese patent application CN 109796742 A discloses that a kind of flame retardant performance is good, and the smoke emission is low during combustion, Low heat release and good toughness. Specifically, this patent uses 1-30 parts of boehmite, sulfonate (preferably perfluorobutanesulfonic acid) Potassium) 0.1-1.5 parts, phosphorus-containing compounds (1-12 parts of phosphorus-based flame retardants, selected from hexaphenoxy cyclotrip...

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Problems solved by technology

For transparency and damp heat aging performance, it is often impossible to take into account at the same time (reduce the transparency of the resin itself as little as possible, improve the damp heat aging performance of the resin), and even produce antagonism in most cases, which will intensify the dripping during burning. As a result, it is necessary to add anti-dripping agent, which greatly reduces the transparency and damp heat aging performance of the resin itself