Modified ABS special material and preparation method thereof

Abstract

The invention provides a modified ABS (Acrylonitrile butadiene styrene) special material and a preparation method thereof; the ABS special material comprises the following components: 70-95wt% of ABS, 1.5-8wt% of compatilizer, 1.5-8wt% of flexibilizer, 0.2-0.6wt% of antioxidant, 0.1-0.5wt% of lubricant, and 1.5-15wt% of ordered mesoporous material, wherein the ordered mesoporous material is MCM-41, MCM-48, SBA-15 or SBA-16; the preparation method comprises the following steps of: weighing ingredients with certain proportions, putting into a high speed mixer and mixing fully, and then extruding and granulating by a double-screw extruder. The modified ABS special material and the preparation method thereof provided by the invention effectively improve MI (Moment of Inertia) value of the ABS and processing fluidity of the ABS as well as mechanical intensity; in addition, the modified ABS special material has the characteristic of low odour, and also has excellent comprehensive performances such as light weight, sound absorption, etc.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a special material for ABS and a preparation method thereof. Background technique [0002] ABS (acrylonitrile-styrene-butadiene copolymer) resin is a polymer material with large demand and rapid development between engineering plastics and general-purpose plastics. ABS resin combines the rigidity of acrylonitrile, the toughness of butadiene and the ease of processing of styrene. It has excellent comprehensive physical and mechanical properties and is widely used in electronics, electrical appliances, automobiles, textile equipment, construction and daily necessities. [0003] In recent years, with the high performance of electronic appliances, automobiles and light industrial products, new requirements have been put forward for the performance of ABS. In order to meet the requirements of users, facilitate users and open up new application fields, various production and...

AI Technical Summary

Problems solved by technology

[0005] (2) Because ABS has a certain volatility, commonly used ABS products often produce certain volatiles during use, which will produce certain emissions on the surface of the parts, which will affect the use of the parts, and also produce certain unpleasant smells , have adverse effects on the air, especially the air quality of some indoor spaces, and cause certain damage to the health of users and environmental protection, which greatly limits the development and wide application of ABS. Therefore, as people pay attention to environmental protection And the requirements for physical and mental health are getting higher and higher, so it is very important to develop low-odor ABS special materials

[0006] (3) The processing fluidity of some grades of ABS is still low, such as Chimei ABS-PA757, whose melt index MI (g / 10min, 260°C, 2.16kg) value is only 8.8, the processing fluidity is low, and it is not easy for injection molding

[0007] (4) Although the use of inorganic fillers to modify ABS can reduce costs, it will be at the cost of losing the mechanical properties of the material to a certain extent, and the smaller the particle size of the fillers, the more difficult it is to achieve uniform dispersion, and more Auxiliaries and better processing equipment, higher processing costs

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