A kind of environment-friendly flame-retardant ABS composite material and preparation method thereof

Abstract

The invention discloses an environmentally friendly flame-retardant ABS composite material, which comprises the following components in parts by weight: 50-88 parts of ABS resin, 3-40 parts of polyolefin resin, 2-8 parts of compatibilizer, and the compatibilizer is ABS At least one of grafted maleic anhydride, ABS grafted polyethylene, ABS grafted methyl methacrylate, ethylene butyl acrylate copolymer. The present invention improves the toughness and weather resistance of the material by alloying ABS with polyolefin resin, greatly compensates for the lack of performance of the flame-retardant ABS material, and solves the processing and application of the material through the development of a compatibilizer and a thermal stability system Defects make the material have good industrial application value. At the same time, the invention also provides a preparation method of the environment-friendly flame-retardant ABS composite material.

Description

technical field [0001] The invention belongs to the technical field of ABS composite materials, and in particular relates to an environment-friendly flame-retardant ABS composite material and a preparation method thereof. Background technique [0002] ABS resin is a terpolymer composed of acrylonitrile, styrene and butadiene. This material has high fluidity of styrene, toughness of butadiene, solvent resistance and heat resistance of acrylonitrile, and has excellent Excellent processing performance, low temperature resistance, electrical insulation performance, high gloss and excellent electroplating performance, and has the advantages of good creep resistance, high dimensional stability, and small molding shrinkage. It is widely used in household appliances, automobiles, electronic appliances and other fields Plastic products are widely used. [0003] When ABS material is applied in the peripheral position where electrical products are in contact with electric heating, in ...

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Problems solved by technology

[0003] When ABS material is applied in the peripheral position where electrical products are in contact with electric heating, in order to ensure fire safety, the material needs to have high flame retardancy. However, the oxygen index of ABS is only 18%, which is a flammable material and cannot meet the requirements of industrial applications.

Although we can selectively add a certain amount of bromine-antimony flame retardant to give ABS better flame retardancy, the mechanical properties of the material are general and cannot meet the technical requirements of special application environment materials.

[0004] In the flame-retardant ABS material system, some polyolefin resins are added to improve the toughness of the material and give the material a certain weather resistance. However, the difference in processing temperature between the two makes the polyolefin resin easy to decompose and change color during processing, which affects product application and manufacturing. The appearance of the piece; and the compatibility between ABS and polyolefin is poor, and defects such as delamination and peeling often appear in production and use

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