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

An ABS resin, 3D printing technology, applied in the field of polymer material synthesis and preparation, can solve the problems of unfavorable 3D printing technology promotion and application, can not guarantee the accuracy of 3D printing products, limit the use of ABS resin, etc., to ensure the quality of 3D printing products , The effect of preventing edge warping and improving fluidity

Inactive Publication Date: 2015-04-29
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh 55kg of ABS resin and modified nano-CaCO in proportion 3 5kg of particles, 20kg of SAN resin, and 20kg of fiber-reinforced ABS resin pellets were mixed uniformly by a high-speed mixer and then added to a twin-screw extruder for melt blending modification. pellets or wire drawing, and winding to obtain the modified ABS resin for 3D printing of the present invention.

Embodiment 2

[0020] In order to make the various components of the modified ABS resin for 3D printing blend uniformly, the system is more stable. The following preferred preparation method can be adopted for preparation. figure 1 It is a schematic flow diagram of the preferred preparation method of inorganic modified ABS resin for 3D printing of the present invention, as figure 1 As shown, take 5kg out of 55kg ABS resin and modify nano-CaCO 3 5 kg of particles are uniformly compounded by a high-speed mixer, dried in vacuum at 90°C for 2-4 hours, and then added to a twin-screw extruder. The temperature of each heating section is 185-205°C. After extrusion and granulation, nano-CaCO 3 Modified ABS resin masterbatch; Take 20kg of SAN resin and 20kg of fiber-reinforced ABS resin pellets and mix them uniformly through a high-speed mixer. After vacuum drying at 90°C for 2 hours, add them to a twin-screw extruder. The temperature of each heating section is 185~205 ℃, obtained SAN resin modified...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L25/12C08K13/06C08K3/34C08K3/26C08K3/22C08K7/14C08K7/06
Inventor 何琪范广宏任明伟
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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