Spraying-free ABS composite material suitable for FDM and preparation method thereof

Abstract

The invention belongs to the fused deposition modeling (FDM) field, and discloses a spraying-free ABS composite material suitable for FDM and a preparation method thereof. The spraying-free ABS composite material comprises following raw materials in parts by weight: 80 to 100 parts of acrylonitrile-butadiene-styrene (ABS), 2 to 10 parts of a pigment, 0 to 10 parts of a compatibilizer, 0.4 to 1.5 parts of a processing aid, and 0.1 to 0.5 part of an antioxidant; wherein the pigment is used to change the color of the composite material. The invention also discloses a preparation method of the composite material. According to the preparation method, the raw materials are mixed, modified, and granulated by a double screw extruder, and then the mixture is extruded and moulded by a single screw extruder. The prepared spraying-free ABS composite material can be made into parts with a metal color, a wood simulated color or a stone simulated color through an FDM mode; the color range and application range of a conventional ABS material are enlarged; the spraying process is eliminated, the production efficiency is improved, and the preparation method is green and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of FDM forming, and more specifically relates to a spray-free ABS composite material suitable for FDM and a preparation method thereof. A spray-free ABS composite material suitable for FDM and a preparation method thereof. Background technique [0002] Fused Deposition Modeling (FDM) is a well-known additive manufacturing method, which is commonly used in 3D printing training institutions and other occasions for the general public. Because of its relatively simple principle and small equipment, it can be used for a long time only by purchasing printing consumables, and the maintenance cost is also low. FDM printers have appeared in a large number of maker spaces. In principle, as long as you can think of it, you can quickly make a real object, and you can quickly realize your ideas in the office, so it has been sought after by a lot of people. [0003] The most used materials in FDM forming methods are PLA, ABS, PC, ...

AI Technical Summary

Problems solved by technology

[0004] The appearance of general-purpose ABS resin is milky white, which cannot meet the needs of various colors in practical applications

Adopt traditional spraying process: pretreatment, spraying, curing, cleaning cause high cost, long production process, low efficiency, low yield rate, non-environmental protection, pollute the environment, cause damage to the health of the operator, high safety risk, and difficult to recycle , does not match the fast personalized customization of FDM forming methods. In short, there is a lack of a spray-free ABS composite material suitable for FDM in the prior art

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