CN111086216A - 3D printing surface appearance modification method based on oxygen inhibition effect - Google Patents
3D printing surface appearance modification method based on oxygen inhibition effect Download PDFInfo
- Publication number
- CN111086216A CN111086216A CN201911394365.6A CN201911394365A CN111086216A CN 111086216 A CN111086216 A CN 111086216A CN 201911394365 A CN201911394365 A CN 201911394365A CN 111086216 A CN111086216 A CN 111086216A
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- China
- Prior art keywords
- oxygen
- printing
- photosensitive resin
- resin layer
- inhibition effect
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 239000001301 oxygen Substances 0.000 title claims abstract description 80
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 80
- 238000010146 3D printing Methods 0.000 title claims abstract description 57
- 230000000694 effects Effects 0.000 title claims abstract description 24
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 23
- 238000002715 modification method Methods 0.000 title claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 53
- 229920005989 resin Polymers 0.000 claims abstract description 53
- 239000007789 gas Substances 0.000 claims abstract description 31
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 230000001678 irradiating effect Effects 0.000 claims abstract description 4
- 238000012876 topography Methods 0.000 claims description 27
- 238000005516 engineering process Methods 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- 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
- B29C64/379—Handling of additively manufactured objects, e.g. using robots
-
- 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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/16—Surface shaping of articles, e.g. embossing; Apparatus therefor by wave energy or particle radiation, e.g. infrared heating
-
- 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
Abstract
The invention discloses a 3D printing surface appearance modification method based on an oxygen inhibition effect, wherein a photosensitive resin layer is coated on the surface of a 3D printing original appearance, and an oxygen permeable film is covered above the photosensitive resin layer; the method comprises the following steps: passing an oxygen-containing gas over the oxygen permeable membrane and irradiating the oxygen permeable membrane with light; regulating and controlling the pressure intensity of the oxygen-containing gas and the wavelength of the light; and partially curing the photosensitive resin layer to form a filling area on the surface of the 3D printed original shape. The depth of the liquid region of the photosensitive resin layer can be controlled manually by regulating the pressure of the oxygen-containing gas and the wavelength of the light. And when the 3D printing surface appearance is obtained through modification, a part of the required 3D printing surface original appearance is reserved according to the requirement.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a 3D printing surface appearance modification method based on an oxygen inhibition effect.
Background
3D printing, which is one of the rapid prototyping technologies, is also called additive manufacturing, which is a technology for constructing an object by using materials such as powdered metal or resin and the like and printing layer by layer on the basis of a digital model file. In the present society, 3D printing technology is rapidly developed and widely applied in a plurality of fields.
The roughness of the surface is difficult to control by the current 3D printing technology due to material and process problems. How to realize the manual control of the surface roughness of a 3D printing product is always a technical problem to be solved urgently in the field of 3D printing.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a 3D printing surface appearance modification method based on an oxygen inhibition effect, which can realize the manual control of the surface roughness of a 3D printing product.
The technical scheme adopted by the invention for solving the problems is as follows:
A3D printing surface appearance modification method based on an oxygen inhibition effect is disclosed, wherein a photosensitive resin layer is coated on the surface of a 3D printing original appearance, and an oxygen permeable film is covered above the photosensitive resin layer;
the 3D printing surface topography modification method comprises the following steps:
passing an oxygen-containing gas over the oxygen permeable membrane and irradiating the oxygen permeable membrane with light;
regulating the pressure of the oxygen-containing gas and the wavelength of the light;
and curing part of the photosensitive resin layer to form a filling area on the surface of the 3D printed original appearance.
The 3D printing surface appearance modification method at least has the following beneficial effects: the depth of the liquid area of the photosensitive resin layer is controlled manually and controllably by regulating the pressure intensity of the oxygen-containing gas and the wavelength of light, and the rest photosensitive resin layers are filling areas and cover the surface of the 3D printing original appearance. Therefore, the 3D printing surface appearance can be obtained through modification, and meanwhile, part of the required 3D printing surface original appearance can be reserved according to the requirement. And finally obtaining the manually controllable 3D printing surface appearance. The requirements of different functions such as super-hydrophobicity, oleophobicity and the like on the surface appearance of the 3D printing can be realized.
Further, the 3D printing surface topography modification method further comprises the following steps:
removing the oxygen permeable membrane;
and cleaning the uncured photosensitive resin layer.
Further, a part of the photosensitive resin layer close to the oxygen-containing gas is kept in a liquid state due to an oxygen inhibition effect, and a liquid region is formed; the portion of the photosensitive resin layer remote from the oxygen-containing gas is cured and the surface of the 3D printed original topography forms a filled region.
Specifically, the 3D printed original topography is a 3D printed product with a rough surface topography produced by a 3D printing technique.
In particular, the 3D printing technology comprises SLA, DLP, SLS, FDM, LCOS or Micro LED based 3D printing technology.
Specifically, the photosensitive resin layer mainly comprises a polymer monomer and a prepolymer.
Further, a photoinitiator is added to the photosensitive resin layer.
Specifically, the oxygen-containing gas is oxygen or a mixed gas containing oxygen.
Specifically, the wavelength range of the light is 200nm to 470 nm.
Specifically, the pressure of the oxygen-containing gas is in the range of 1x104Pa to 1x106Pa。
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flowchart of a 3D printing surface topography modification method based on an oxygen inhibition effect according to an embodiment of the present invention;
FIG. 2 is another flow chart of a 3D printing surface topography modification method based on the oxygen inhibition effect according to an embodiment of the present invention;
FIG. 3 is a modified state diagram of the 3D printed raw topography;
FIG. 4 is a comparison of pre-modification and post-modification of the printed original topography of the 3D map.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, an embodiment of the present invention provides a 3D printing surface topography modification method based on an oxygen inhibition effect, wherein a photosensitive resin layer 20 is coated on a surface of a 3D printing original topography 10, and an oxygen permeable film 30 is covered above the photosensitive resin layer 20;
the 3D printing surface topography modification method comprises the following steps:
step S300 of passing an oxygen-containing gas 50 over the oxygen permeable membrane 30 and irradiating light 40 to the oxygen permeable membrane 30;
step S400, regulating and controlling the pressure of the oxygen-containing gas 50 and the wavelength of the light 40;
step S500, curing part of the photosensitive resin layer 20, and forming a filling area 21 on the surface of the 3D printed original appearance 10.
In this embodiment, the pressure of the oxygen-containing gas 50 affects the depth of the oxygen penetrating the oxygen permeable film 30 to the photosensitive resin layer 20, and the wavelength of the light 40 affects whether or not the photosensitive resin layer 20 is cured by chain polymerization. The depth of the liquid region 22 of the photosensitive resin layer 20 is controlled manually and controllably by regulating the pressure of the oxygen-containing gas 50 and the wavelength of the light 40, and the rest of the photosensitive resin layer 20 is the filling region 21 and covers the surface of the 3D printed original topography 10. Therefore, the 3D printing surface appearance can be obtained through modification, and meanwhile, part of the required 3D printing surface original appearance can be reserved according to the requirement. And finally obtaining the manually controllable 3D printing surface appearance. The requirements of different functions such as super-hydrophobicity, oleophobicity and the like on the surface appearance of the 3D printing can be realized.
Referring to fig. 2, before step S300, step S100 is performed: coating a photosensitive resin layer 20 on the surface of the 3D printed original topography 10 and step S200: an oxygen permeable film 30 is covered over the photosensitive resin layer 20 to obtain a processed 3D printed original topography 10.
Further, after step S500, the 3D printing surface topography modification method further includes the steps of:
step S600, removing the oxygen permeable film 30;
step S700 of cleaning the uncured photosensitive resin layer 20.
After step S700, the uncured photosensitive resin layer 20 is completely cleaned, and only the 3D printing surface topography with the cured layer covered on the surface is remained.
Further, a portion of the photosensitive resin layer 20 adjacent to the oxygen-containing gas 50 remains in a liquid state due to the oxygen inhibition effect, forming a liquid region 22; the portion of the photosensitive resin layer 20 remote from the oxygen-containing gas 50 is cured and the surface of the original topography 10 is 3D printed to form a filled region 21.
Referring to fig. 3 and 4, it should be noted that the photosensitive resin layer 20 is mainly composed of a polymer monomer and a prepolymer. The oxygen-containing gas 50 is oxygen or a mixed gas containing oxygen. The photosensitive resin layer 20 is added with a photoinitiator for accelerating the polymerization reaction of the photosensitive resin layer 20. The photosensitive resin layer 20 is cured by the polymerization of the light 40, and the filling region 21 is a cured photosensitive resin region formed by the polymerization of the light 40 in the photosensitive resin layer 20. The oxygen inhibition effect is a phenomenon in the polymerization reaction of photosensitive resins. The photosensitive resin layer 20 is a type of covalently polymerized polymer. Oxygen may form an ionic bond with a covalent bond, breaking the polymerization reaction, and eventually interrupting or slowing the chain polymerization reaction in which the light 40 cures the photosensitive resin. In the photosensitive resin layer 20 containing a relatively high amount of oxygen, the chain polymerization reaction will be interrupted or slowed, and eventually the liquid photosensitive resin layer 20 will not polymerize to form resin solids. The liquid region 22 is an uncured photosensitive resin region of the photosensitive resin layer 20 due to the oxygen inhibition effect.
Specifically, the light 40 has a wavelength ranging from 200nm to 470nm, which is advantageous for accelerating the chain polymerization of the photosensitive resin layer 20. The pressure range of the oxygen-containing gas 50 is 1x104Pa to 1x106Pa. Of course, in other embodiments, the wavelength range of the light 40 and the pressure range of the oxygen-containing gas 50 may vary depending on the specific material used for the photosensitive resin layer 20.
In particular, the 3D printed original topography 10 is a 3D printed product with a rough surface topography produced by 3D printing techniques.
Specifically, the oxygen permeable membrane 30 is a membrane having a high permeability to oxygen, and is capable of filtering out other gases than oxygen in the oxygen-containing gas 50. Oxygen molecules can pass through the oxygen permeable film 30 to reach the photosensitive resin layer 20, and other gas molecules cannot.
In particular, the 3D printing technology includes SLA, DLP, SLS, FDM, LCOS or Micro LED based 3D printing technology.
The above is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and the present invention shall fall within the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means.
Claims (10)
1. A3D printing surface appearance modification method based on an oxygen inhibition effect is characterized in that a photosensitive resin layer is coated on the surface of a 3D printing original appearance, and an oxygen permeable film covers the photosensitive resin layer;
the 3D printing surface topography modification method comprises the following steps:
passing an oxygen-containing gas over the oxygen permeable membrane and irradiating the oxygen permeable membrane with light;
regulating the pressure of the oxygen-containing gas and the wavelength of the light;
and curing part of the photosensitive resin layer to form a filling area on the surface of the 3D printed original appearance.
2. The 3D printing surface topography modification method based on the oxygen inhibition effect according to claim 1, wherein the 3D printing surface topography modification method further comprises the following steps:
removing the oxygen permeable membrane;
and cleaning the uncured photosensitive resin layer.
3. The method for modifying the surface morphology of 3D printing based on the oxygen inhibition effect is characterized in that the part of the photosensitive resin layer close to the oxygen-containing gas is kept in a liquid state due to the oxygen inhibition effect to form a liquid region; the portion of the photosensitive resin layer remote from the oxygen-containing gas is cured and the surface of the 3D printed original topography forms a filled region.
4. The method for modifying the surface topography of 3D printing based on the oxygen inhibition effect as claimed in claim 1, wherein the 3D printing original topography is a 3D printing product with rough surface topography generated by 3D printing technology.
5. The method of claim 4, wherein the 3D printing technology comprises SLA, DLP, SLS, FDM, LCOS or Micro LED based 3D printing technology.
6. The method for modifying the surface morphology of 3D printing based on the oxygen inhibition effect as claimed in claim 1, wherein the photosensitive resin layer mainly comprises a polymer monomer and a prepolymer.
7. The method for modifying the surface morphology of 3D printing based on the oxygen inhibition effect as claimed in claim 6, wherein the photosensitive resin layer is added with a photoinitiator.
8. The method for modifying the surface morphology of 3D printing based on oxygen inhibition effect as claimed in claim 1, wherein the oxygen-containing gas is oxygen or a mixed gas containing oxygen.
9. The method for modifying the surface morphology of 3D printing based on the oxygen inhibition effect as claimed in claim 1, wherein the wavelength range of the light is 200nm to 470 nm.
10. The method for modifying the surface morphology of 3D printing based on oxygen inhibition effect as claimed in claim 1, wherein the pressure of the oxygen-containing gas is in the range of 1x104Pa to 1x106Pa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911394365.6A CN111086216A (en) | 2019-12-30 | 2019-12-30 | 3D printing surface appearance modification method based on oxygen inhibition effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911394365.6A CN111086216A (en) | 2019-12-30 | 2019-12-30 | 3D printing surface appearance modification method based on oxygen inhibition effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111086216A true CN111086216A (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911394365.6A Pending CN111086216A (en) | 2019-12-30 | 2019-12-30 | 3D printing surface appearance modification method based on oxygen inhibition effect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429947A (en) * | 2021-07-01 | 2021-09-24 | 本时智能技术发展(上海)有限公司 | Polymerization-resistant functionalized heat-conducting particle and application thereof |
| CN113878878A (en) * | 2021-09-29 | 2022-01-04 | 杭州正向增材制造技术有限公司 | 3D printing model surface treatment method |
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| US20180086007A1 (en) * | 2016-09-27 | 2018-03-29 | Lawrence Livermore National Security, Llc | Optically enhanced patternable photosensitivity via oxygen excitation |
| CN108456385A (en) * | 2018-05-05 | 2018-08-28 | 宁波市石生科技有限公司 | A kind of release film and its manufacturing process for photocuring 3D printing |
| CN108724700A (en) * | 2017-04-25 | 2018-11-02 | 施乐公司 | The method and instrument of improvement surface cure for 3 D-printing component |
| CN208277438U (en) * | 2018-05-17 | 2018-12-25 | 厦门艾斯美客科技有限公司 | A kind of photosensitive resin slot for continuous photocuring 3D printing |
| CN110027209A (en) * | 2019-05-23 | 2019-07-19 | 先临三维科技股份有限公司 | Rapid photocuring 3D printer magazine and 3D printer |
-
2019
- 2019-12-30 CN CN201911394365.6A patent/CN111086216A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180086007A1 (en) * | 2016-09-27 | 2018-03-29 | Lawrence Livermore National Security, Llc | Optically enhanced patternable photosensitivity via oxygen excitation |
| CN108724700A (en) * | 2017-04-25 | 2018-11-02 | 施乐公司 | The method and instrument of improvement surface cure for 3 D-printing component |
| CN108456385A (en) * | 2018-05-05 | 2018-08-28 | 宁波市石生科技有限公司 | A kind of release film and its manufacturing process for photocuring 3D printing |
| CN208277438U (en) * | 2018-05-17 | 2018-12-25 | 厦门艾斯美客科技有限公司 | A kind of photosensitive resin slot for continuous photocuring 3D printing |
| CN110027209A (en) * | 2019-05-23 | 2019-07-19 | 先临三维科技股份有限公司 | Rapid photocuring 3D printer magazine and 3D printer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113429947A (en) * | 2021-07-01 | 2021-09-24 | 本时智能技术发展(上海)有限公司 | Polymerization-resistant functionalized heat-conducting particle and application thereof |
| CN113429947B (en) * | 2021-07-01 | 2022-03-04 | 本时智能技术发展(上海)有限公司 | Polymerization-resistant functionalized heat-conducting particle and application thereof |
| CN113878878A (en) * | 2021-09-29 | 2022-01-04 | 杭州正向增材制造技术有限公司 | 3D printing model surface treatment method |
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