Recycled ABS plastic for manufacturing traveling case shell and preparation method thereof

Abstract

The invention discloses recycled ABS plastic capable of being applied to manufacturing of a traveling case shell, and a preparation method thereof. The method comprises the following steps: firstly, blasting and drying recovered ABS plastic at 80 DEG C for 7-9 hours; weighing the dried recovered ABS plastic, a flexibilizer, a cross-linking agent and a compatilizer according to the weight ratio and feeding the weighed materials to a high-speed mixer to mix for 3-5 minutes; and extruding and pelleting the materials by adopting a twin-screw extruder at 190-220 DEG C, so as to obtain the product. Inorganic packing is added to the recovered ABS plastic for enhancement in general, so that the quality of the recovered plastic is reduced, and the recovered ABS plastic cannot be applied to manufacturing of high-grade traveling case shells. The method can be applied to manufacturing of travelling case shells with high quality requirements by simultaneously achieving the effects of toughening and enhancing the recovered ABS plastic without adding the inorganic packing, and has high economic benefits.

Description

technical field [0001] The invention relates to the technology in the field of plastic materials, in particular to recycled ABS plastics used for manufacturing suitcase shells and a preparation method thereof. Background technique [0002] ABS resin is acrylonitrile, butadiene and styrene copolymer (Acrylonitrile-Butadiene [0003] -Styrene) abbreviation or abbreviation. ABS resin is a thermoplastic polymer material with high strength, good toughness, and easy processing and molding. Helmets and all kinds of suitcases, etc. [0004] ABS is widely used in end consumer products, and correspondingly, there are a large number of recyclable ABS resins. With the shortage of petroleum resources and increasingly stringent environmental protection, the application of recycled ABS resins is gradually increasing. Due to the extremely fierce market competition, many ABS product manufacturers have begun to use recycled ABS materials to reduce costs. However, due to the aging effect o...

AI Technical Summary

Problems solved by technology

However, due to the aging effect of recycled ABS resin, its mechanical properties, especially the impact resistance, are far inferior to those of new ABS materials, and it needs to be modified before it can be reused.

[0005] Chinese patent CN1646280 discloses a method for systematically classifying and recycling ABS plastics. The method of restoring the physical properties of ABS regrinds by adding fresh ABS raw materials can be regarded as a partial recycling of ABS regrinds. There is no change in the ABS regrinds themselves. Sacrificing the performance of ABS new materials to achieve performance improvement, there is no mention of specific toughening and strengthening methods, which has certain limitations

[0006] Chinese patent CN101016401 proposes that during the use of ABS plastics, the photoaging of the butadiene segment will lead to the loss of the rubber phase, the reduction of the molecular weight and the phase separation, thereby causing the reduction of the mechanical properties.

[0007] CN102634161A proposes a method for improving the mechanical properties and paintability of recycled ABS plastics, and improving the impact strength of ABS recycled materials through toughening agents, etc., but does not propose a clear method to improve the tensile strength of ABS recycled materials.

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