Modified composite for bulk polymerization acrylonitrile-butadiene-styrene and preparation method thereof

Abstract

The invention relates to a bulk polymerized acrylonitrile-butadiene-styrene modified compound, which is characterized in that it is composed of the following raw materials in weight percent: acrylonitrile-butadiene-styrene (ABS) 58.0-86.5%, Heat-resistant modifier 10-24%, UV absorber 0.3-1.0%, silicone masterbatch 0.5-3%, odor inhibitor 0.5-5%, flame retardant 2-8%, lubricant 0.1-1% , Coupling agent 0.1-1%. The preparation method is as follows: weighing raw materials according to weight percentage; mixing bulk acrylonitrile-butadiene-styrene (ABS) resin, ultraviolet light absorber, odor inhibitor, silicone masterbatch, flame retardant, and processing aid in the Dry mixing in a high-speed mixer for 3-5 minutes; the mixed raw materials are placed in a twin-screw machine for melt extrusion and granulation. During the extrusion process, the heat-resistant modifier is evenly added through the lateral accurate feeding system. , extrude the strands, cool, pelletize and dry to obtain the final product. The invention has the advantages that the product has low odor volatility and excellent flame retardancy, and the finished product is suitable for automotive interior parts, refrigerators, electronic appliances and other industries.

Description

technical field [0001] The present invention relates to a kind of bulk polymerized acrylonitrile-butadiene-styrene modified compound and preparation method thereof, especially to a kind of acrylonitrile-butadiene-styrene ternary copolymerization resin (ABS) produced by bulk method ) modified composite material, specifically involving the preparation of a modified composite material suitable for various fields such as automotive interior parts, refrigerators, and electronic appliances by adding nano-scale flame retardants and odor inhibitors that can effectively suppress unpleasant odors. The utility model relates to a non-volatile body ABS material, which belongs to the technical field of chemical materials. Background technique [0002] Styrene acrylonitrile copolymer, that is, acrylonitrile-butadiene-styrene ABS (acrylnitrile-butadiene-strene copolymer), due to its excellent processing properties, good mechanical properties, and chemical resistance, it is widely used in au...

AI Technical Summary

Problems solved by technology

[0003] However, because acrylonitrile-butadiene-styrene (ABS) will release some unpleasant odors to varying degrees, especially various automobile interiors made of acrylonitrile-butadiene-styrene (ABS) materials Material products such as decorative parts have gradually been questioned by many consumers; and ABS is a flammable material (oxygen index 18.3-20.0), and it will release a large amount of smoke that is easy to suffocate when burned. With continuous enhancement, acrylonitrile-butadiene-styrene (ABS) will be more challenged in these aspects, and higher and higher requirements are put forward for acrylonitrile-butadiene-styrene (ABS) materials In order to further expand the application of acrylonitrile-butadiene-styrene (ABS) materials in related fields and improve the cost performance of acrylonitrile-butadiene-styrene ABS, it is necessary to find an effective way to prepare low-odor, Even odorless, acrylonitrile-butadiene-styrene (ABS) material with excellent flame retardant properties