3D printing special engineering plastic support material and preparation method of wires of support material

A special engineering plastic, 3D printing technology, applied in the field of 3D printing, can solve the problems of easy detachment and deformation of the main material, ironing of the thermal printing layer, unsatisfactory adhesion, etc. Printable, easy-to-prepare effects

Inactive Publication Date: 2019-11-12
INTAMSYS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the general support materials on the market cannot withstand the high temperature of 350-400 ℃, and will be scalded or deformed by the thermal printing layer covered during the printing process, and the adhesion between PVA and HIPS and the above special engineering plastics is not ideal , the main material is prone to detachment, deformation and warping during the printing process

Method used

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  • 3D printing special engineering plastic support material and preparation method of wires of support material
  • 3D printing special engineering plastic support material and preparation method of wires of support material
  • 3D printing special engineering plastic support material and preparation method of wires of support material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 75 parts of polycarbonate resin, 15 parts of carbon fiber, 5 parts of silane coupling agent, 4.5 parts of trioctyl trimellitate, 0.5 part of antioxidant 1010 and 168 (the mass ratio of 1010 and 168 is 2:1) in Mix in a high-speed mixer at 60°C for 15 minutes, and the mixed material is extruded through a twin-screw extruder (extrusion temperature is 220°C, screw speed is 260r / min), and is supported by air-cooled drag chain cutting Material blend particles.

[0044] The support material blended particles were vacuum-dried at 80°C for 4 hours and then entered into a single-screw extruder for extrusion (extrusion temperature was 250°C, screw speed was 250r / min), and the extruded melt was cooled in a water tank, air-dried and drawn A monofilament wire with a diameter of 1.75 mm was obtained, and the monofilament was wound up and then dried in an oven at 80°C for 6 hours before use, and a special support material wire for 3D printing special engineering plastics was obtained. ...

Embodiment 2

[0047] A blend of 80 parts of polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS) (the mass ratio of PC and ABS is 70:30), 10 parts of glass fiber, 8 parts of polycarbonate Ester grafted maleic anhydride, 1.5 parts of dioctyl phthalate, 0.5 parts of antioxidant 1010, 168 and triphenyl phosphate (the mass ratio of antioxidant 1010, antioxidant 168 and triphenyl phosphate is 2 : 1: 1) Mix in a high-speed mixer at 60°C for 15 minutes, and the mixed material is extruded through a twin-screw extruder (extrusion temperature is 180°C, screw speed is 290r / min), and dragged by an air-cooled pull bar. The chain cutting can obtain the support material blended particles.

[0048] The support material blended particles were vacuum-dried at 80°C for 4 hours and then entered into a single-screw extruder for extrusion (extrusion temperature was 190°C, screw speed was 270r / min), and the extruded melt was cooled in a water tank, air-dried and drawn A monofilament wire with a...

Embodiment 3

[0051] 85 parts of polycarbonate (PC) and polyetheretherketone (PEEK) blend (PC and PEEK mass ratio: 80:20), 10 parts of talc (1500 mesh), 3 parts of polyethylene grafted methyl Glycidyl acrylate, the dioctyl phthalate of 1.5 parts, the antioxidant 1010,168 of 0.5 part and triphenyl phosphate (the mass ratio of antioxidant 1010, antioxidant 168 and triphenyl phosphate is 2 : 1: 1) Mix in a high-speed mixer at 60°C for 15 minutes, and the mixed material is extruded through a twin-screw extruder (extrusion temperature is 320°C, screw speed is 290r / min), and dragged by air-cooled pull bar The chain cutting can obtain the support material blended particles.

[0052] The support material blended particles were vacuum-dried at 80°C for 4 hours and then entered into a single-screw extruder for extrusion (extrusion temperature was 350°C, screw speed was 250r / min), and the extruded melt was cooled in a water tank, air-dried and drawn A monofilament wire with a diameter of 1.75 mm was ...

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Abstract

The present invention discloses a 3D printing special engineering plastic support material and a preparation method of wires of the support material. The material is composed of the following components by weight percentage: 75-90 parts of polycarbonate resin; 5-15 parts of reinforcement material; 1-10 parts of compatibilizer; 2-5 parts of plasticizer; and 0.1-3 parts of antioxidant. The supporting wires prepared by the material ensures the stable establishment of a support portion in a 3D printing process of special engineering plastics under high temperature environment, is well bonded withthe special engineering plastics such as PEEK (polyetheretherketone), polyetherimide, PES (polyether sulfone), PEKK(polyetherketoneketone), PPS (polyphenylene sulfide), poly(phenylene sulfone),etc. atthe same time, products are put into a non-toxic environment-friendly solvent after printing is finished, and the support portion can be quickly removed by dissolution or swelling. The preparation method of the 3D printing support material of the invention has high chemical stability and a simple production process, an existing twin-screw extrusion mechanism can be used for preparation, and the 3D printing special engineering plastic support material is easy to prepare, suitable for industrial production and conducive to the market promotion of the 3D printing material.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a preparation method of a 3D printing special engineering plastic support material and a wire thereof. Background technique [0002] 3D printing technology has received widespread attention and rapid development in recent years. Fused deposition modeling (FDM) is an important branch of 3D printing at present. , and construct a three-dimensional object by layer-by-layer stacking under precise positioning. [0003] 3D printing support materials are used in Fused Deposition Modeling (FDM) 3D printing technology to assist in the formation of suspended structures or hollow structures of products during the printing process, and materials that need to be removed after printing. Such as figure 1 with figure 2 As shown, the support material is automatically calculated by computer software to increase the part of the model that needs to be supported in the process, which is not pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L51/08C08K7/06C08K7/14C08L61/16C08L51/06C08K3/34C08K3/04C08L79/08C08K3/36B33Y70/00
CPCB33Y70/00C08K7/06C08L69/00C08L2201/08C08L55/02C08L51/08C08K7/14C08L61/16C08L51/06C08K3/34C08K3/042C08L79/08C08K3/36
Inventor 董现明曾超韩成超
Owner INTAMSYS TECH CO LTD
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