Flame-retardant HIPS material and preparation method thereof

Abstract

The invention discloses a flame-retardant HIPS material and a preparation method thereof. The flame-retardant HIPS material comprises the following components: 79-91 parts of HIPS resin, 2-8 parts ofa brominated flame retardant, and 3-7 parts of an auxiliary flame retardant, wherein the auxiliary flame retardant is a 1,3,5-triazine compound. According to the flame-retardant HIPS material and preparation method provided by the invention, the bromine-based flame retardant and the auxiliary flame retardant are synergistically compounded, so that the use amount of the brominated flame retardant is effectively reduced, and the flame-retardant HIPS material can achieve a stable UL 94 (1.5 mm) V-2 flame retardant grade; and compared with current brominated flame retardant HIPS, the flame-retardant HIPS material provided by the invention has the advantages of a low halogen content, a low gas content, high cost performance, better thermal stability, and less corrosiveness to molds, and can bewidely used in the fields of thin-walled parts, such as office equipment, film and television multimedia and household appliances.

Description

technical field [0001] The invention relates to the field of flame-retardant polymer materials, in particular to a flame-retardant HIPS material and a preparation method thereof. Background technique [0002] Flame-retardant HIPS resin is widely used in audio-visual equipment casings, office equipment casings, household appliances, power conversion devices and other fields due to its good mechanical properties, processing properties and post-processing properties, good dimensional stability and low molding shrinkage. [0003] There are two types of flame-retardant HIPS technology at present, one is a halogen-free flame-retardant system, and the other is a halogen-free flame-retardant system. The halogen-free flame-retardant system is more environmentally friendly, less corrosive to molds, and has less gas. However, it has high material cost and processing energy consumption, which limits the wide use and promotion in the market; the usual halogenated flame retardant HIPS mat...

AI Technical Summary

Problems solved by technology

[0003] There are two types of flame-retardant HIPS technology at present, one is a halogen-free flame-retardant system, and the other is a halogen-free flame-retardant system. The halogen-free flame-retardant system is more environmentally friendly, less corrosive to molds, and has less gas. However, it has high material cost and processing energy consumption, which limits the wide use and promotion in the market; the usual halogenated flame retardant HIPS materials contain HIPS resin halogenated flame retardants, antimony oxides or salts, anti-dripping agents , as well as necessary processing aids such as antioxidant lubricants, can produce products with a balance of rigidity, fluidity and toughness

However, due to the high content of halogen-based flame retardants, the thermal stability of the material is poor, resulting in the thermal decomposition of the material during the molding process will produce more hydrogen halide gas, this acid gas will have a greater impact on the mold Corrosive, causing molds to be replaced frequently, thus increasing production costs

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