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Electronic radiation crosslinked polymeric material for 3D printing, preparation method and product thereof

A cross-linked polymer, 3D printing technology, applied in the direction of 3D object support structure, additive processing, manufacturing tools, etc., can solve the problems of poor heat resistance and rigidity, limit the scope of application, etc., achieve chemical corrosion resistance and mechanical Increased strength, broad application prospects, and improved heat resistance

Active Publication Date: 2014-08-13
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, such thermoplastic resins are usually polymers with a linear structure, and the printed products have poor heat resistance and rigidity, which limits their application range

Method used

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  • Electronic radiation crosslinked polymeric material for 3D printing, preparation method and product thereof
  • Electronic radiation crosslinked polymeric material for 3D printing, preparation method and product thereof
  • Electronic radiation crosslinked polymeric material for 3D printing, preparation method and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] 3D printed product A prepared from electron radiation crosslinked polymer composition for 3D printing and materials prepared therefrom

[0058] 1) 100 parts by weight of PE (weight average molecular weight 50,000), 0.5 part of triallyl cyanurate, 0.1 part of antioxidant 1010, 5 parts of micron calcium carbonate powder, 1 part of lead chromium Huang is mixed evenly with a single-screw extruder, extruded and processed into filaments with a diameter of 2mm, and the diameter error is within 5%. Set in sequence: 185-195°C, 190-200°C, 195-205°C, 200-210°C, 195-205°C, die head temperature 215-225°C.

[0059] 2) Feed the filament obtained in step 1) into the nozzle through the wire feeding mechanism of the UPRINT3D printer, heat and melt in the nozzle, the nozzle moves along the section profile of the part and the filling track, and at the same time extrude the molten material, using the thermal melting of the material After being extruded under computer control, it is rapidly...

Embodiment 2

[0062] 3D printed article B prepared from electron radiation crosslinked polymer composition for 3D printing and materials prepared therefrom

[0063] 1) With 100 parts by weight of PVC (weight average molecular weight 70,000), 1 part of triallyl isocyanurate, 0.2 part of antioxidant 1010, 10 parts of nano Ag powder, 2 parts of cadmium red Mix evenly with a single-screw extruder, extrude and process it into filaments with a diameter of 2mm, and the diameter error is within 5%. The settings are: 185-195°C, 190-200°C, 195-205°C, 200-210°C, 195-205°C, and the die head temperature is 215-225°C.

[0064] 2) Feed the filament obtained in step 1) into the nozzle through the wire feeding mechanism of the UPRINT3D printer, heat and melt in the nozzle, the nozzle moves along the section profile of the part and the filling track, and at the same time extrude the molten material, using the thermal melting of the material It is solidified quickly after being extruded under computer contro...

Embodiment 3

[0067] 3D printed articles prepared from electron radiation crosslinked polymer compositions for 3D printing and materials prepared therefrom

[0068] 1) with 100 parts by weight of PA (weight average molecular weight 100,000), 2 parts of trimethylolpropane trimethacrylate, 0.3 parts of antioxidant 1096, 15 parts of nano Fe 3 o 4 Powder, 3 parts of iron yellow are mixed evenly with a single-screw extruder, extruded and processed into filaments with a diameter of 2mm, the diameter error is within 5%, the screw diameter of the single-screw extruder is 70mm, and the aspect ratio is 20 : l, the temperature of the extruder is set as follows: 185-195°C, 190-200°C, 195-205°C, 200-210°C, 195-205°C, and the die head temperature is 215-225°C.

[0069] 2) Feed the filament obtained in step 1) into the nozzle through the wire feeding mechanism of the UPRINT3D printer, heat and melt in the nozzle, the nozzle moves along the section profile of the part and the filling track, and at the sam...

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Abstract

The invention discloses an electronic radiation crosslinked polymeric material for 3D printing, a preparation method and a product thereof. The material includes following components, by weight, 100 parts of polymer resin, 0.5-5 parts of a radiosensitizer, 0.1-0.5 parts of an anti-oxidant agent, 1-20 parts of a powder and 1-10 parts of a pigment. With addition of the radiosensitizer, the polymer resin is subjected to a crosslinking reaction during a 3D printing process through electronic beam radiation to form a three-dimensional net structure so that a moulded material is significantly improved in heat resistant performance, chemical-corrosion resistant performance and mechanical strength. The polymer resin has a wider application prospect in 3D printing materials.

Description

technical field [0001] The invention relates to a material for 3D printing, a preparation method and a product thereof, in particular to an electron radiation crosslinked polymer material for 3D printing, a preparation method and a product thereof. Background technique [0002] 3D printing is a new rapid prototyping technology, based on the computer three-dimensional design model, using laser sintering, heating and melting, etc., materials such as metals, ceramic powders or polymers are controlled by computer digital software programs to accumulate and bond them layer by layer. Shaped to create a physical product. In simple terms, 3D printing can be regarded as the superposition of 2D printing technology in space. Using materials such as solid powder or polymer melt as printing "ink", through computer modeling and design, the precision and size of the product can be precisely controlled. Compared with the traditional molding technology, this printing technology does not re...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L27/06C08L77/00C08L69/00C08L23/08C08L55/02C08K13/02C08K3/26C08K3/08C08K3/22C08K3/34C08J3/28C08J3/24B29C67/00
CPCB29C48/05B29C48/92B29C64/112B29C64/20B29C64/386B29C2948/92704C08K3/08C08K3/22C08K3/26C08K3/346C08K5/103C08K5/12C08K5/34924C08K13/02C08K2003/0806C08K2003/2227C08K2003/2244C08K2003/2275C08K2003/265C08L2201/08C08L2312/06C08L23/06C08L27/06C08L77/00C08L69/00C08L23/0853C08L55/02
Inventor 沈衡朱唐郭靖赵宁徐坚孙文华董金勇李春成符文鑫林学春马永梅
Owner INST OF CHEM CHINESE ACAD OF SCI
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