CN109203480B - 3D printing method of TPV - Google Patents
3D printing method of TPV Download PDFInfo
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- CN109203480B CN109203480B CN201710571269.9A CN201710571269A CN109203480B CN 109203480 B CN109203480 B CN 109203480B CN 201710571269 A CN201710571269 A CN 201710571269A CN 109203480 B CN109203480 B CN 109203480B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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Abstract
The invention discloses a 3D printing method of TPV. The method comprises the following steps: the temperature of the spray head is 200-230 ℃, the moving speed of the spray head is 30-50mm/s when the wire is fed, the moving speed of the spray head is 50-80mm/s when the wire is not fed, the temperature of the heating plate is 50-70 ℃, and the aperture of the feeding hole is 1.6-1.8 mm. The TPV is thermoplastic vulcanized rubber of ethylene propylene rubber/polypropylene; the melt index is > 15g/10 min. According to the invention, after the printing process is improved, the problem that the original flexible material cannot be subjected to 3D printing is solved, the 3D printing of TPV is realized, and a new printable material is added to the existing material.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a 3D printing method of TPV.
Background
At present, most of materials printed by Fused Deposition Modeling (FDM) are thermoplastic plastics, eutectic system metals and edible materials, and fused deposition wire printing cannot be realized for thermoplastic elastomer (TPV) materials. The thermoplastic elastomer (TPV) is usually processed by conventional extrusion, injection molding, hollow molding, compression molding, etc. The tooling for some personalized articles requires individually customized molds, which increases the cost of production.
The current thermoplastic elastomer can be printed by thermoplastic polyurethane elastomer materials, and the hardness is above 90A. The current printing technology and mode are suitable for materials with higher hardness, but for flexible materials (the hardness is below 90A), the wire is easy to wind on the gear. 3D printing cannot be achieved.
Therefore, how to realize 3D printing of flexible materials is a technical problem that needs to be solved at present.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a 3D printing method of TPV. The thermoplastic elastomer can realize a 3D printing processing mode to manufacture personalized products; for 3D printing, a printing material is added, and the thermoplastic elastomer is a material which has high elasticity ratio and can be repeatedly processed, so that various flexible objects can be printed.
One of the purposes of the invention is to provide a 3D printing method of TPV.
The temperature of the spray head is 200-220 ℃, the moving speed of the spray head is 30-50mm/s when the wire is fed, the moving speed of the spray head is 50-80mm/s when the wire is not fed, the temperature of the heating plate is 50-70 ℃, and the aperture of the feeding hole is 1.6-1.8 mm.
The TPV is an ethylene propylene rubber/polypropylene thermoplastic vulcanizate (EPDM/PP) having a melt index > 15g/10min, preferably greater than 40g/10 min.
The method comprises the following steps:
1) setting the temperature of the printer to 200-230 ℃; the moving speed of the spray head is 30-50mm/s when the wire is fed; the moving speed of the non-wire feeding spray head is 50-80mm/s, and the temperature of the heating plate is 50-70 ℃;
2) and (3) starting to send the TPV wire into the printing nozzle, selecting a printing model, generating printing data, and printing after the temperature is raised.
The specific printing method comprises the following steps:
the printer temperature is set to 200 deg.C (200-230 deg.C can be selected), the nozzle moving speed during wire feeding is 30mm (30-50 mm/s can be selected), the non-wire nozzle moving speed is 50mm/s (50-80 mm/s can be selected), and the heating plate temperature is 50 deg.C (50-70 deg.C can be selected). And starting to send the wire into the printing nozzle, selecting the model under the printing mode, generating printing data, and printing after the temperature is raised.
Most feeding nozzles for printing thermoplastic plastics have the diameter of 1.75, the feeding hole diameter is 2.8-2.2, and the feeding method is a gap feeding mode, so that the rigidity of the plastic is higher, and in the printing process, the wire can be used as power to extrude the material melted in the nozzles; the flexible material is not hard enough, and can not be extruded by the force of the gear completely in the mode, the pore diameter is reduced to be similar to the size of the material, and the gapless feeding mode is carried out. On one hand, the feeding mode is changed, on the other hand, the printing temperature is improved, and the successful filament discharging of the material is realized.
The invention also aims to provide an application of the 3D printing method of the TPV in 3D printing.
The invention has the following effects:
under the original printing process, the TPV material cannot be subjected to 3D printing, and after the printing process is improved, the problem that the original flexible material cannot be subjected to 3D printing is solved, the 3D printing of the TPV is realized, and a new printable material is added to the existing material.
Drawings
FIG. 1 photograph of a printing part of example 1;
FIG. 2 photo of a printing part of example 2;
figure 3 photograph of a printing part of example 3.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1 and example 2 starting materials:
thermoplastic vulcanizate of ethylene propylene rubber/polypropylene (EPDM/PP)
SHANDONG DAWN POLYMER Co.,Ltd.
Number 14-85A (1311)
Melt index: 47.5g/10min, hardness: 85A
Example 1
The printer temperature is set to 200 ℃, the moving speed of the spray head is 30mm when the wire is fed, the moving speed of the non-wire-feeding spray head is 50mm/s, and the temperature of the heating plate is 50 ℃. The aperture of the feeding hole is 1.6 mm;
and starting to send the wire into the printing nozzle, selecting the model under the printing mode, generating printing data, and printing after the temperature is raised.
The printed components are shown in fig. 1.
Example 2
The printer temperature is set to 230 ℃, the movement speed of the nozzle is 50mm when the wire is fed, the movement speed of the non-wire-feeding nozzle is 80mm/s, and the temperature of the heating plate is 70 ℃. The aperture of the feeding hole is 1.8 mm;
and starting to send the wire into the printing nozzle, selecting the model under the printing mode, generating printing data, and printing after the temperature is raised. The printed components are shown in fig. 2.
Example 3
Raw materials: thermoplastic vulcanizate of ethylene propylene rubber/polypropylene (EPDM/PP)
SHANDONG DAWN POLYMER Co.,Ltd.
Number plate 14-85A (1321)
Melt index: 262.8g/10min, hardness: 85A
The printer temperature is set to 230 ℃, the movement speed of the nozzle is 50mm when the wire is fed, the movement speed of the non-wire-feeding nozzle is 80mm/s, and the temperature of the heating plate is 70 ℃. The aperture of the feeding hole is 1.8 mm;
and starting to send the wire into the printing nozzle, selecting the model under the printing mode, generating printing data, and printing after the temperature is raised. The printed components are shown in fig. 3.
Claims (4)
1. A3D printing method of TPV is characterized in that:
the temperature of the spray head is 200-230 ℃, the moving speed of the spray head is 30-50mm/s when the wire is fed, the moving speed of the spray head is 50-80mm/s when the wire is not fed, the temperature of the heating plate is 50-70 ℃, and the aperture of the feeding hole is 1.6-1.8 mm;
the TPV is thermoplastic vulcanized rubber of ethylene propylene rubber/polypropylene;
the melt index of the thermoplastic vulcanizate of ethylene propylene rubber/polypropylene is more than 15g/10 min.
2. The 3D printing method of the TPV of claim 1, wherein:
the melt index of the thermoplastic vulcanizate of ethylene propylene rubber/polypropylene is more than 40g/10 min.
3. A method of 3D printing of a TPV according to claim 1, characterized in that the method comprises:
1) setting the temperature of the printer to 200-230 ℃; the moving speed of the spray head is 30-50mm/s when the wire is fed; the moving speed of the non-wire feeding spray head is 50-80mm/s, and the temperature of the heating plate is 50-70 ℃;
2) and (3) starting to send the TPV wire into the printing nozzle, selecting a printing model, generating printing data, and printing after the temperature is raised.
4. Use of a 3D printing method of a TPV according to any of claims 1 to 2 in 3D printing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017105418629 | 2017-07-05 | ||
| CN201710541862 | 2017-07-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109203480A CN109203480A (en) | 2019-01-15 |
| CN109203480B true CN109203480B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710571269.9A Active CN109203480B (en) | 2017-07-05 | 2017-07-13 | 3D printing method of TPV |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109796689A (en) * | 2019-02-01 | 2019-05-24 | 青岛科技大学 | A kind of soft, can 3D printing brombutyl/polypropylene thermoplastic vulcanizate and its preparation method and application |
| US11458677B2 (en) | 2019-12-26 | 2022-10-04 | Industrial Technology Research Institute | Selective laser sintering composition and selective laser sintering 3D printing method employing the same |
| TWI737098B (en) * | 2019-12-26 | 2021-08-21 | 財團法人工業技術研究院 | Selective laser sintering composition and selective laser sintering 3d printing method employing the same |
| CN114536758B (en) * | 2020-11-26 | 2023-05-09 | 中国科学院福建物质结构研究所 | Spray head and application thereof in preparation of thermoplastic vulcanized rubber |
Citations (4)
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|---|---|---|---|---|
| CN103612392A (en) * | 2013-11-28 | 2014-03-05 | 宁波金鹏高强度紧固件有限公司 | Method for producing high-toughness fasteners by using 3D (three dimensional) printing technology |
| CN103756236A (en) * | 2014-01-06 | 2014-04-30 | 朱叶周 | Thermoplastic elastomer composition for preparing flexible printing material for three-dimensional printing rapid prototyping |
| CN104004377A (en) * | 2014-06-10 | 2014-08-27 | 广州市傲趣电子科技有限公司 | Soft elastic 3D (Three-dimensional) printing rubber consumable material and preparation method thereof |
| CN106493937A (en) * | 2016-10-21 | 2017-03-15 | 福耀玻璃工业集团股份有限公司 | A kind of method of 3D printing automobile glass encapsulation assembly exemplar |
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2017
- 2017-07-13 CN CN201710571269.9A patent/CN109203480B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612392A (en) * | 2013-11-28 | 2014-03-05 | 宁波金鹏高强度紧固件有限公司 | Method for producing high-toughness fasteners by using 3D (three dimensional) printing technology |
| CN103756236A (en) * | 2014-01-06 | 2014-04-30 | 朱叶周 | Thermoplastic elastomer composition for preparing flexible printing material for three-dimensional printing rapid prototyping |
| CN104004377A (en) * | 2014-06-10 | 2014-08-27 | 广州市傲趣电子科技有限公司 | Soft elastic 3D (Three-dimensional) printing rubber consumable material and preparation method thereof |
| CN106493937A (en) * | 2016-10-21 | 2017-03-15 | 福耀玻璃工业集团股份有限公司 | A kind of method of 3D printing automobile glass encapsulation assembly exemplar |
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| CN109203480A (en) | 2019-01-15 |
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