Modified ABS resin for 3D printing as well as preparation method of modified ABS resin

Abstract

The invention provides modified ABS resin for 3D printing as well as a preparation method of the modified ABS resin. The modified ABS resin for 3D printing provided by the invention is prepared from the following components in percentage by weight: 40-85% of ABS resin, 1-10% of modified nanoparticles, 10-40% of SAN resin and 4-30% of fiber enhanced ABS resin aggregates. The modified ABS resin for 3D printing prepared by the invention has relatively good toughness and mechanical property and is suitable for most FDM moulded 3D printers in the market, so that edge warping in the printing process can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of polymer material synthesis and preparation, in particular to a modified acrylonitrile-butadiene-styrene (ABS) resin for 3D printing and a preparation method thereof. Background technique [0002] 3D printing technology, relying on information technology, precision machinery and material science and other disciplines, the academic name is rapid prototyping technology (RP: Rapid Prototyping Manufacturing), also known as additive manufacturing technology (AM: Additive Manufacturing). The basic principle is layered manufacturing and layer by layer superposition. Cut a 3D model made by design or scanning into infinite sections according to a certain coordinate axis, then print out layer by layer and stack them together according to the original position to form a solid three-dimensional model, similar to Integrals in higher mathematics. [0003] ABS resin is a "sea island" structure in which butadiene rubber...

AI Technical Summary

Problems solved by technology

[0005] Due to the limitations of the current 3D printing technology, the general ABS resin material is used for 3D printing, the printing temperature is in the range of 230~270°C, and its product strength is about 80% of the strength of the same resin injection molding product, which limits the use of ABS resin in 3D printing technology. usage of

Since the heating temperature of most 3D printer heads on the market is up to 270°C, if you want to improve the strength and toughness of ABS resin 3D printing products, commonly used melt blended modified resins such as PC / ABS, PA / ABS, etc., its modified ABS Resin does not have a good melting effect at 270°C, and the accuracy of 3D printing products cannot be guaranteed, and the strength improvement is not obvious

At the same time, the price of 3D printing materials on the market is relatively high, which is not conducive to the promotion and application of 3D printing technology.

[0006] To sum up, ABS resins and plastic alloys commonly used by people are currently used for 3D printing, especially the effect of fused deposition modeling (FDM) 3D printers is not ideal. Therefore, the development of modified ABS materials for 3D printing has important theoretical significance. and application value

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