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A 3D printing method for tpv

A 3D printing, C-230 technology, applied in manufacturing auxiliary devices, processing data acquisition/processing, additive processing, etc., can solve problems such as inability to achieve 3D printing

Active Publication Date: 2020-06-16
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3D printing is not possible

Method used

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  • A 3D printing method for tpv
  • A 3D printing method for tpv
  • A 3D printing method for tpv

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and Embodiment 2

[0022] Embodiment 1 and embodiment 2 raw materials:

[0023] Ethylene Propylene Rubber / Polypropylene Thermoplastic Vulcanizate (EPDM / PP)

[0024] Shandong Dawn Polymer Materials Co., Ltd.

[0025] Grade: 14-85A(1311)

[0026] Melt index: 47.5g / 10min, hardness: 85A

Embodiment 1

[0028] Set the temperature of the printer to 200°C, the moving speed of the nozzle during wire feeding is 30mm, and the moving speed of the nozzle without wire feeding is 50mm / s, and the temperature of the heating plate is 50°C. The feeding aperture is 1.6mm;

[0029] Start to feed the filament into the print nozzle, select the print mode, select the model, generate the print data, and wait for the temperature to rise before printing.

[0030] printed parts such as figure 1 shown.

Embodiment 2

[0032] Set the temperature of the printer to 230°C, the moving speed of the nozzle during wire feeding is 50mm, and the moving speed of the nozzle without wire feeding is 80mm / s, and the temperature of the heating plate is 70°C. The feeding aperture is 1.8mm;

[0033] Start to feed the filament into the print nozzle, select the print mode, select the model, generate the print data, and wait for the temperature to rise before printing. printed parts such as figure 2 shown.

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Abstract

The invention discloses a 3D printing method of TPV. According to the method, the temperature of a spray head is 200 DEG C-230 DEG C, the moving speed of the spray head during wire feeding is 30-50 mm / s, the moving speed of the spray head during non-wire feeding is 50-80 mm / s, the temperature of a heating plate is 50-70 DEG C, and the feeding hole diameter is 1.6-1.8 mm; the TPV is thermoplastic vulcanized rubber of ethylene propylene rubber / polypropylene, and a melt index is larger than 15 g / 10 minutes. According to the method, after a printing technology is improved, the problem that an original flexible material cannot be subjected to the 3D printing is solved, so that the 3D printing of the TPV is realized, and a new printable material is added for an existing material.

Description

technical field [0001] The present invention relates to the technical field of polymer materials, and furthermore, relates to a 3D printing method of TPV. Background technique [0002] At present, most of the materials printed by fused deposition (FDM) are thermoplastics, eutectic metals, and edible materials, while fused deposition wire printing cannot be realized for thermoplastic elastomer (TPV) materials. The processing methods for thermoplastic elastomers (TPV) are mostly traditional extrusion molding, injection molding, hollow molding, compression molding and other processing methods. For the processing of some personalized objects, molds need to be customized separately, which will increase the cost of production. [0003] The current thermoplastic elastomer that can be printed is thermoplastic polyurethane elastomer material, and the hardness is above 90A. The current printing technology and mode are suitable for materials with higher hardness, but for flexible mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/393B33Y50/02B33Y70/00
CPCB33Y50/02B33Y70/00
Inventor 张立群高宇王润国韩吉彬张世甲田洪池
Owner BEIJING UNIV OF CHEM TECH
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