Flame-retardant ABS composition and preparation method thereof

Abstract

The invention discloses a flame-retardant ABS composition. The composition comprises, by weight, 36.2-82.7 parts of ABS resin, 12-20 parts of a brominated flame retardant, 3-10 parts of an antimony-based flame retardant and 0.2-0.8 part of a processing aid; and in the total weight of the flame-retardant ABS composition, the content of the nitrogen element is not more than 85000 ppm and not less than 7000 ppm, the total content of the phosphorus element is not more than 50000 ppm and not less than 3000 ppm, and the total content of the fluorine element is not more than 40000 ppm and not less than 800 ppm. A plurality of flame-retardant systems are compounded for synergism, and under the combined action of a plurality of flame-retardant elements, relatively high glowing filament performanceis achieved. Meanwhile, the invention also provides a prepoiaration method of the flame-retardant ABS composition.

Description

technical field [0001] The invention belongs to the technical field of ABS composite materials, and in particular relates to a flame-retardant ABS composition and a preparation method thereof. Background technique [0002] ABS materials are often used as the casing of electronic and electrical products. These products will ignite these materials due to overheating, leakage, and aging, causing fires and posing a huge threat to people's lives and property safety. The safety standards of the industry consistently implement the UL94 standard to evaluate the flame retardant safety of polymer materials due to passive ignition, such as V-2, V-1 and V-0 flame retardant grades. In case of overheating due to poor contact, overload, and short circuit during use, the EU International Electrotechnical Association IE C60695 glow wire standard is used to evaluate its flame retardancy and safety. [0003] The chemical structure of ABS terpolymer contains polybutadiene rubber, which is flam...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the gas phase condensed phase flame retardant mechanism of the bromine antimony flame retardant system, the performance of the glow wire is low, and it is difficult to meet the fire safety requirements of the IEC60695 standard, which affects its popularization and application in the electrical product industry.

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