Low-gloss halogen-free flame-retardant alloy material and preparation method thereof

Abstract

The invention discloses a low-gloss halogen-free flame-retardant alloy material and a preparation method thereof, and belongs to the technical field of high polymer materials. The low-gloss halogen-free flame-retardant alloy material is prepared from the following raw materials in parts by weight: 50-90 parts of polypropylene resin, 10-30 parts of polycarbonate resin, 6-12 parts of a compound flame retardant and 0.3-0.6 part of a lubricant. When the compound flame retardant is formed by compounding a nitrogen flame retardant, a hypophosphite flame retardant, a phosphate flame retardant and a flame retardant synergist, the mass ratio of the nitrogen flame retardant to the hypophosphite flame retardant to the flame retardant synergist to the phosphate flame retardant is (30-60: 15-30): (0.5-1.5: 0-20). The low-gloss halogen-free flame-retardant alloy material prepared from the compound flame retardant disclosed by the invention has good flame retardancy, mechanical properties and low gloss, and can be used for preparing a table lamp key shell; and the preparation method is simple and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a low-gloss halogen-free flame-retardant alloy material and a preparation method thereof. Background technique [0002] Polypropylene is one of the five general-purpose resins. It has excellent properties such as light weight, easy processing, and chemical resistance. It is widely used in chemical, electrical, packaging and other industrial fields. However, with the increasing demand for polypropylene in industries such as construction, automobiles, ships, and electrical and electronic insulation materials, people's requirements for its flame retardancy are also increasing. Polypropylene itself is a flammable material, its oxygen index is only 17% to 18%, and its carbon formation rate is low, and it is easy to produce molten droplets when burning, which will cause the surrounding combustibles to ignite, so it is required in many applications Modify it. [...

AI Technical Summary

Problems solved by technology

Yang Minghui and others researched aluminum hypophosphite and melamine hydrobromide as the main flame retardants, and biquer as a synergist. They were applied in polypropylene, and the flame retardancy reached UL94 V-2 level, but melamine hydrobromide partial Acidic, corrosive to the screw, and contains bromine, which cannot achieve halogen-free flame retardancy

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