CN112078128A - Preparation method and application of radioactive material for 3D printing - Google Patents
Preparation method and application of radioactive material for 3D printing Download PDFInfo
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- CN112078128A CN112078128A CN202010994127.5A CN202010994127A CN112078128A CN 112078128 A CN112078128 A CN 112078128A CN 202010994127 A CN202010994127 A CN 202010994127A CN 112078128 A CN112078128 A CN 112078128A
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- radioactive
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- radioactive substance
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- 239000012857 radioactive material Substances 0.000 title claims abstract description 47
- 238000010146 3D printing Methods 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 58
- 239000000843 powder Substances 0.000 claims abstract description 57
- 239000000941 radioactive substance Substances 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 18
- 230000008021 deposition Effects 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005491 wire drawing Methods 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims 1
- 230000002285 radioactive effect Effects 0.000 abstract description 23
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000007639 printing Methods 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000227 grinding Methods 0.000 description 6
- 239000012876 carrier material Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
-
- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
- B33Y40/10—Pre-treatment
-
- 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
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Composite Materials (AREA)
- Structural Engineering (AREA)
Abstract
The invention provides a preparation method and application of a radioactive material for 3D printing. The preparation method disclosed by the invention is simple to operate and low in cost, the prepared radioactive material is completely suitable for a 3D printing technology by combining the radioactive powder and the traditional material, and the content of radioactive substances in the material can be adjusted according to actual requirements, so that the technical problem that the radioactive material cannot be used as the 3D printing material is solved. The preparation of radioactive products is made possible by 3D printing technology.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a preparation method and application of a radioactive material for 3D printing.
Background
The radioactive material mainly utilizes rays generated by natural decay of the radioactive material, and has the applications of measurement, detection, analysis, tracing, irradiation processing and the like in the industrial field; in the medical field, certain diseases can be diagnosed and treated by utilizing the ray. And the material is harmful, and the material is sealed in most cases, so that the material cannot be diffused into the environment to harm the safety of the public. Conventional radioactive materials are often processed into a sealed type, sealed in a metal can, or attached to the surface of a substrate in the form of plating or the like. Most of the processing technologies are containers and substrates which are manufactured independently, radioactive materials are then loaded, sealed or attached, the technology is complex and has multiple steps, complex curved surfaces and complex three-dimensional shapes are difficult to form, the 3D printing technology can meet the requirements of any curved surface and any shape, and customization and personalized production are realized.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a preparation method and application of a radioactive material for 3D printing, so as to solve the technical problem that the radioactive material prepared by the traditional process cannot be suitable for 3D printing.
In order to solve the technical problems, the invention provides a preparation method and application of a radioactive material for 3D printing, which comprises the following steps:
the radioactive substance powder or the powder carrying the radioactive substance is mixed with the printing material.
Further, the particle diameter of the radioactive substance powder or the powder carrying the radioactive substance is 300 μm or less.
Further, the mass percentage content of the printing material is more than 40%.
The preparation method of the invention preferably prepares the radioactive substance into radioactive powder with the particle size less than or equal to 300 microns, the diameter of a spray head of a normal 3D printer is less than or equal to 400 microns, the finer the powder is, the higher the printing precision is, and therefore, the smaller the particle size of the radioactive powder is, the better the printing precision is. The mass percentage content of the printing material needs to be controlled to be more than 40%, and the applicant finds through a large number of experiments that the 3D printing effect cannot be guaranteed if the mass percentage content is less than or equal to 40%.
Further, the method for preparing the radioactive substance powder includes: the solid radioactive material is directly crushed and ground into powder.
Further, the method for preparing the powder loaded with the radioactive substance includes:
firstly, adsorbing a solution containing radioactive substances in the powder material or on the surface of the powder material.
And step two, removing the water in the solution to enable the radioactive substance to exist in the interior or on the surface of the powder material in a solid form, so as to obtain the powder carrying the radioactive substance.
Further, the second step includes forming a precipitate of the radioactive substance in or on the powder material, and removing moisture from the solution. Conventional chemical reactions may be used to cause the radioactive material to form a precipitate within or on the surface of the powder material.
In addition, the invention also provides the radioactive material prepared by the method, and the radioactive material is prepared by any one method.
In addition, the invention also provides an application of the radioactive material in the FDM process, wherein the method for preparing the radioactive material comprises the step of mixing the radioactive substance powder or the powder loaded with the radioactive substance with the fused deposition material. This mixing can be done either in advance or temporarily at the head position during printing.
Further, the method for preparing the radioactive material further comprises the steps of heating, wire drawing and the like after mixing, so that the 3D printing material for the FDM process is prepared.
In addition, the invention also provides application of the radioactive material in the SLA process, wherein the method for preparing the radioactive material comprises the step of mixing the radioactive substance powder or the powder loaded with the radioactive substance with the photosensitive material. This mixing may be done in advance or may be done temporarily at the head position during printing.
Compared with the prior art, the invention has the beneficial effects that:
the preparation method of the radioactive material for 3D printing provided by the invention is simple to operate and low in cost, the prepared radioactive material is completely suitable for the 3D printing technology by combining the radioactive powder and the printing material, and the content of radioactive substances in the material can be adjusted according to actual requirements, so that the technical problem that the radioactive material prepared by the traditional process cannot be used as the 3D printing material is solved.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially. The mixing, heating, drawing and the like used in the following examples are all conventional techniques.
Example 1
Grinding the solid radioactive substance into radioactive powder with the particle size of 300 microns; and mixing, heating and drawing the fused deposition material and the radioactive powder to prepare the radioactive material for 3D printing. Wherein the content of the fused deposition material is 41 percent by mass.
Example 2
Grinding the solid radioactive substance into radioactive powder with the particle size of 150 microns; and mixing, heating and drawing the fused deposition material and the radioactive powder to prepare the radioactive material for 3D printing. Wherein the content of the fused deposition material is 99% by mass.
Example 3
Grinding the solid radioactive substance into radioactive powder with the particle size of 100 microns; during printing, the molten deposition material and the printing nozzle are mixed, sprayed, printed and molded. Wherein the content of the fused deposition material is 60% by mass.
Example 4
Grinding the solid radioactive substance into radioactive powder with the particle size of 80 microns; the photosensitive material and the radioactive powder are mixed to prepare the radioactive material for 3D printing. Wherein the photosensitive material accounts for 80 percent by mass.
Example 5
Absorbing the radioactive solution into or on the surface of a powdery carrier material with the particle size of 50 microns, and directly drying water to prepare powder with the particle size of 50 microns and loaded with radioactive substances; and mixing the fused deposition material and the powder loaded with the radioactive substance, heating and drawing to obtain the radioactive material for 3D printing. Wherein the content of the fused deposition material is 70% by mass.
Example 6
Absorbing the radioactive solution into or on the surface of a powdery carrier material with the particle size of 30 microns, and directly drying water to prepare powder with the particle size of 30 microns and loaded with radioactive substances; when printing, the printing head and the photosensitive material are mixed, sprayed, printed and formed. Wherein the photosensitive material accounts for 55 percent by mass.
Example 7
Absorbing radioactive solution into the interior or on the surface of a powdery carrier material with the particle size of 10 microns, enabling the radioactive substance to form a precipitate in the interior or on the surface of the powdery material through a chemical reaction, and then drying water to obtain powder with the particle size of 10 microns and loaded with the radioactive substance; and mixing the fused deposition material and the powder loaded with the radioactive substance, heating and drawing to obtain the radioactive material for 3D printing. Wherein the content of the fused deposition material is 75 percent by mass.
Example 8
Absorbing radioactive solution into the interior or on the surface of a powdery carrier material with the particle size of 5 microns, enabling the radioactive substance to form a precipitate in the interior or on the surface of the powdery material through a chemical reaction, and then drying water to obtain powder with the particle size of 5 microns and loaded with the radioactive substance; and mixing the photosensitive material and the powder loaded with the radioactive substance to prepare the radioactive material for 3D printing. Wherein the photosensitive material accounts for 65 percent by mass.
Comparative example 1
Grinding the solid radioactive substance into radioactive powder with the particle size of 350 microns; and mixing, heating and drawing the fused deposition material and the radioactive powder to prepare the radioactive material for 3D printing. Wherein the content of the fused deposition material is 60% by mass.
Comparative example 2
Grinding the solid radioactive substance into radioactive powder with the particle size of 150 microns; and mixing, heating and drawing the fused deposition material and the radioactive powder to prepare the radioactive material for 3D printing. Wherein the content of the fused deposition material is 35% by mass.
Comparative example 3
Absorbing the radioactive solution into or on the surface of a powdery carrier material with the particle size of 100 microns, and directly drying water to prepare powder with the particle size of 100 microns and loaded with radioactive substances; and mixing the photosensitive material and the powder loaded with the radioactive substance to prepare the radioactive material for 3D printing. Wherein the photosensitive material accounts for 30 percent by mass.
By comparing the printing effects of examples 1 to 8 and comparative examples 1 to 3, the results are shown below,
| group of | Whether or not to form a complex curved surface |
| Example 1 | Can be used for |
| Example 2 | Can be used for |
| Example 3 | Can be used for |
| Example 4 | Can be used for |
| Example 5 | Can be used for |
| Example 6 | Can be used for |
| Example 7 | Can be used for |
| Example 8 | Can be used for |
| Comparative example 1 | Can not |
| Comparative example 2 | Can not |
| Comparative example 3 | Can not |
From this, it is understood that the particle diameter of the radioactive powder made of the radioactive substance or the powder carrying the radioactive substance is preferably 300 μm or less, and the effect of 3D printing cannot be ensured when the particle diameter exceeds 300 μm, and the smaller the particle diameter, the higher the printing accuracy, and the better the printing effect. The content of radioactive substances in the radioactive material can be adjusted through the mass percentage content of the printing material, the mass percentage content of the printing material needs to be controlled to be more than 40%, and the success of 3D printing cannot be guaranteed if the mass percentage content of the printing material is less than or equal to 40%.
In a word, the preparation method of the radioactive material for 3D printing provided by the invention is simple to operate and low in cost, the radioactive material prepared by the method of combining the radioactive powder and the traditional material is completely suitable for the 3D printing technology, the content of radioactive substances in the material can be adjusted according to actual requirements, and the technical problem that the radioactive material prepared by the traditional process cannot be used as the 3D printing material is solved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A preparation method of radioactive materials for 3D printing is characterized by comprising the step of mixing radioactive substance powder or powder loaded with radioactive substances with 3D printing materials.
2. The method according to claim 1, wherein the radioactive substance powder or the powder loaded with the radioactive substance has a particle size of 300 μm or less.
3. The method of claim 1, wherein the 3D printing material is present in the radioactive material in an amount greater than 40% by mass.
4. The method according to claim 1, wherein the method for preparing the powder loaded with the radioactive substance includes:
firstly, adsorbing a solution containing radioactive substances in or on the surface of a powdery material;
and step two, removing the water in the solution to enable the radioactive substance to exist in the interior or on the surface of the powder material in a solid form, so as to obtain the powder carrying the radioactive substance.
5. The method according to claim 4, wherein the second step comprises precipitating the radioactive substance in or on the powder material, and removing water from the solution.
6. A radioactive material for 3D printing, characterized by: the radioactive material is produced by the method of any one of claims 1 to 5.
7. Use of the radioactive material according to claim 6 in an FDM process, wherein: the method of making the radioactive material includes mixing a radioactive substance powder or a powder loaded with a radioactive substance with a fused deposition material.
8. Use according to claim 7, characterized in that: the method for preparing the radioactive material further comprises the steps of heating and wire drawing after mixing to prepare the 3D printing material for the FDM process.
9. Use of a radioactive material according to claim 6 in an SLA process, wherein: the method of preparing the radioactive material includes mixing a radioactive substance powder or a powder carrying a radioactive substance with a photosensitive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010994127.5A CN112078128A (en) | 2020-09-21 | 2020-09-21 | Preparation method and application of radioactive material for 3D printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010994127.5A CN112078128A (en) | 2020-09-21 | 2020-09-21 | Preparation method and application of radioactive material for 3D printing |
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| Publication Number | Publication Date |
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| CN112078128A true CN112078128A (en) | 2020-12-15 |
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| CN202010994127.5A Pending CN112078128A (en) | 2020-09-21 | 2020-09-21 | Preparation method and application of radioactive material for 3D printing |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018095753A1 (en) * | 2016-11-22 | 2018-05-31 | Philips Lighting Holding B.V. | Powder coated fdm printed item, related manufacturing method and apparatus |
| WO2018106237A1 (en) * | 2016-12-08 | 2018-06-14 | Hewlett-Packard Development Company, L.P. | Material sets |
| JP2018189501A (en) * | 2017-05-08 | 2018-11-29 | 国立研究開発法人産業技術総合研究所 | Radioactive composite particle, method for manufacturing the same, radioactive phantom, and method for manufacturing the same |
| DE102017120750A1 (en) * | 2017-09-08 | 2019-03-14 | Technische Universität Chemnitz | Device and method for producing a component by means of 3D multi-material printing and manufactured component |
| CN110290833A (en) * | 2017-02-09 | 2019-09-27 | 肿瘤贝塔股份有限公司 | For applying the model radiated, the method for making the model and the purposes of the model |
| CN111036912A (en) * | 2019-12-13 | 2020-04-21 | 南京航空航天大学 | Method for preparing liquid-containing porous material by laser 3D printing |
-
2020
- 2020-09-21 CN CN202010994127.5A patent/CN112078128A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018095753A1 (en) * | 2016-11-22 | 2018-05-31 | Philips Lighting Holding B.V. | Powder coated fdm printed item, related manufacturing method and apparatus |
| WO2018106237A1 (en) * | 2016-12-08 | 2018-06-14 | Hewlett-Packard Development Company, L.P. | Material sets |
| CN110290833A (en) * | 2017-02-09 | 2019-09-27 | 肿瘤贝塔股份有限公司 | For applying the model radiated, the method for making the model and the purposes of the model |
| JP2018189501A (en) * | 2017-05-08 | 2018-11-29 | 国立研究開発法人産業技術総合研究所 | Radioactive composite particle, method for manufacturing the same, radioactive phantom, and method for manufacturing the same |
| DE102017120750A1 (en) * | 2017-09-08 | 2019-03-14 | Technische Universität Chemnitz | Device and method for producing a component by means of 3D multi-material printing and manufactured component |
| CN111036912A (en) * | 2019-12-13 | 2020-04-21 | 南京航空航天大学 | Method for preparing liquid-containing porous material by laser 3D printing |
Non-Patent Citations (2)
| Title |
|---|
| 华跃进: "中国核农学通论", vol. 1, 30 April 2016, 上海交通大学出版社, pages: 81 - 82 * |
| 陈神星: "3D打印用尼龙及其复合丝材的研究", 中国优秀硕士学位论文全文数据库工程科技Ⅰ辑, no. 8, 31 August 2019 (2019-08-31), pages 8 * |
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