Low-odor ABS material used for 3D printing and preparation method of low-odor ABS material

An ABS material and 3D printing technology, applied in the field of low-odor ABS material for 3D printing and its preparation, can solve the problems that it is difficult to fully compound the processing and use requirements of FDM3D printers, it is difficult to fully achieve the deodorization effect, and the adsorption capacity of the adsorbent is limited. Achieve the effect of low cost, easy operation, not easy to aggregate and decompose

Inactive Publication Date: 2019-04-12
NORTH HUAJIN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main problem of ABS resin used in the 3D printing industry at present: when the material is printed at high temperature (usually 240-260 ℃), it will produce a strong smell, which will affect the scope of use of the material, and it is easy to cause warping, deformation and other problems during molding; In the process of ABS material processing into consumable products, the material processing stability is insufficient, and it is difficult to fully meet the processing and use requirements of FDM 3D printers
Patent CN100506907C uses molecular sieves as an adsorbent, and the adsorption capacity of the adsorbent is limited, so it is difficult to completely achieve the deodorization effect; patent CN10270970A adds jellyfish particles to achieve the purpose of deodorization, and jellyfish particles are easily hydrolyzed, resulting in a decline in the mechanical properties of the material; patent CN103059409 uses activated carbon Compounded with molecular sieves as an adsorbent, the micropores in activated carbon can absorb odorous molecules emitted from polymer materials, but the reason for the black color of activated carbon itself makes it limited to use in black materials

Method used

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  • Low-odor ABS material used for 3D printing and preparation method of low-odor ABS material
  • Low-odor ABS material used for 3D printing and preparation method of low-odor ABS material
  • Low-odor ABS material used for 3D printing and preparation method of low-odor ABS material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 90.46% of ABS resin, 10760.26% and 1680.78% of antioxidants, 0.5% of Ca-Zn heat stabilizer, and 3% of ABS-g-MAH compatibilizer, mix them uniformly in a high-speed premixer, and heat to 80°C Then keep warm for 30 minutes. Add the premixed material into the twin-screw extruder, and inject 2% of polyester plasticizer with a molecular weight of 2000 through a gear pump near the main feeding port. Add 3% organic chelating deodorant through the side feed port, and inject CO in the middle of the extruder 2 , the flow rate is 2.5m 3 / h, the vacuum pressure in the vacuum pumping section is -0.098MPa, and the ABS material is obtained by pelletizing, wherein the screw speed of the twin-screw extruder is 300rpm, and the barrel temperature is 190-260°C. The dried ABS granular material is introduced into a single-screw extruder, and after extrusion, it is pulled by a tractor to be processed into a 1.75±0.05mm wire that meets the requirements of a 3D printer. The screw speed o...

Embodiment 2

[0031] Weigh respectively 90.46% of ABS resin, 10760.26% and 1680.78% of antioxidant, 0.5% of Ca-Zn heat stabilizer, 3% of ABS-g-GMA compatibilizer, 2% of polyethylene wax with molecular weight of 2000 and premix at high speed Mix evenly in a container, heat to 80°C and keep warm for 30 minutes. Add the premix into the twin-screw extruder, add 3% deodorant organic chelating deodorant through the side feeding port, and inject CO into the middle of the extruder 2 , the flow rate is 2m 3 / h, the vacuum pressure in the vacuum pumping section is -0.098MPa, and the ABS material is obtained by pelletizing, wherein the screw speed of the twin-screw extruder is 300rpm, and the barrel temperature is 190-260°C. The dried ABS granular material is introduced into a single-screw extruder, and after extrusion, it is pulled by a tractor to be processed into a 1.75±0.05mm wire that meets the requirements of a 3D printer. The screw speed of the single-screw extruder is 50rpm, and the barrel te...

Embodiment 3

[0037] Weigh 88.46% of ABS resin, 10760.26% and 1680.78% of antioxidants, 0.5% of Ca-Zn heat stabilizer, and 3% of ABS-g-MAH compatibilizer, mix them uniformly in a high-speed premixer, and heat to 80°C Then keep warm for 30 minutes. The premix is ​​added into the twin-screw extruder, and 4% of polyester plasticizer with a molecular weight of 2000 is injected through a gear pump near the main feeding port. Add deodorant porous aluminum silicon 3% through the side feed port, inject CO in the middle of the extruder 2 , the flow rate is 2.5m 3 / h, the vacuum pressure in the vacuum pumping section is -0.098MPa, and the PC / ABS alloy material is obtained by pelletizing, wherein the screw speed of the twin-screw extruder is 300rpm, and the barrel temperature is 190-260°C. The dried ABS granular material is introduced into a single-screw extruder, and after extrusion, it is pulled by a tractor to be processed into a 1.75±0.05mm wire that meets the requirements of a 3D printer. The s...

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Abstract

The invention belongs to the technical field of high-molecular materials, and discloses a low-odor ABS material used for 3D printing and a preparation method of the low-odor ABS material. The low-odorABS material comprises the following raw materials: 82.5-99.1% of ABS resin, 0.1-2% of an antioxidant, 0.5-3% of a compatibilizer, 0.1-0.5% of a heat stabilizer, 0.1-2% of a deodorant, and 0.1-10% ofa plasticizer. The preparation method of the low-odor ABS material used for the 3D printing disclosed in the invention adopts a combination of a gas extraction technology and the deodorant for use, and has the characteristics of a pure product, simple operation and wide application prospects, and the low-odor ABS material has high printing precision, and does not block spray heads of a 3D printing machine.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a low-odor ABS material for 3D printing and a preparation method thereof. Background technique [0002] As an amorphous copolymer, ABS resin has a low shrinkage rate and excellent comprehensive performance. It is the first material used in 3D printing FDM technology, and it is also the most widely used part consumable in the field of FDM printing technology. [0003] The main problem of ABS resin used in the 3D printing industry at present: when the material is printed at high temperature (usually 240-260 ℃), it will produce a strong smell, which will affect the scope of use of the material, and it is easy to cause warping, deformation and other problems during molding; In the process of processing ABS materials into consumable products, the material processing stability is insufficient, and it is difficult to fully meet the processing and use requirements o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L67/00C08K5/134C08K5/526
CPCC08L55/02C08L2205/025C08L2205/03C08L67/00C08K5/1345C08K5/526
Inventor 吕天一王岩王楠郑树松朱勇飞李新杰许寒梅罗闯程璐孙钰淇孙洪伟
Owner NORTH HUAJIN CHEM IND CO LTD
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