CN117820562A - Aliphatic photosensitive resin material applied to 3D printing and preparation method thereof - Google Patents
Aliphatic photosensitive resin material applied to 3D printing and preparation method thereof Download PDFInfo
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- 239000011347 resin Substances 0.000 title claims abstract description 79
- 229920005989 resin Polymers 0.000 title claims abstract description 79
- 125000001931 aliphatic group Chemical group 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 title claims abstract description 47
- 238000010146 3D printing Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 34
- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229920002635 polyurethane Polymers 0.000 claims abstract description 29
- 239000004814 polyurethane Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 27
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 239000003623 enhancer Substances 0.000 abstract description 4
- 239000003963 antioxidant agent Substances 0.000 abstract description 3
- 230000003078 antioxidant effect Effects 0.000 abstract description 3
- 239000003431 cross linking reagent Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 11
- 238000001723 curing Methods 0.000 description 7
- 239000003085 diluting agent Substances 0.000 description 7
- 238000000016 photochemical curing Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 150000003254 radicals Chemical class 0.000 description 5
- 239000004925 Acrylic resin Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- -1 4-methylthiophenyl Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical compound C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 1
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 description 1
- DTGKSKDOIYIVQL-MRTMQBJTSA-N Isoborneol Natural products C1C[C@@]2(C)[C@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-MRTMQBJTSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- CKDOCTFBFTVPSN-UHFFFAOYSA-N borneol Natural products C1CC2(C)C(C)CC1C2(C)C CKDOCTFBFTVPSN-UHFFFAOYSA-N 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- DTGKSKDOIYIVQL-UHFFFAOYSA-N dl-isoborneol Natural products C1CC2(C)C(O)CC1C2(C)C DTGKSKDOIYIVQL-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Abstract
An aliphatic photosensitive resin material applied to 3D printing and a preparation method thereof are as follows: s1, preparing photosensitive resin raw materials according to 60-75wt% of aliphatic hexafunctional polyurethane acrylate, 20-38wt% of isobornyl acrylate and 2-5wt% of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide; s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 7-10 days; s3, adding aliphatic hexafunctional polyurethane acrylate into the brown bottle after standing, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 25-35r/min for 48-72h, standing for 10-30min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material. The invention can obtain the photosensitive resin material capable of preparing the photosensitive resin with excellent mechanical properties without adding a cross-linking agent, an antioxidant and an enhancer.
Description
Technical Field
The invention relates to an aliphatic photosensitive resin material applied to 3D printing and a preparation method thereof, belonging to the technical field of 3D printing.
Background
The light-cured 3D printing technology is used as one of novel 3D printing technologies for subverting the traditional manufacturing technology, and the principle is that liquid photosensitive resin can be utilized to cure under ultraviolet irradiation, and finally a complete three-dimensional model is formed. The photo-curing 3D printing has the advantages of simple operation, high forming speed, no pollution in the forming process, high precision of formed parts and the like. Therefore, the application prospect is very wide. The liquid crystal display technology (Liquid crystaldisplay technology, abbreviated as LCD) has the advantages of complex and precise model manufacturing structure, high efficiency and low cost, and is outstanding in the photo-curing 3D printing technology. The free radical type photosensitive resin is used as a common consumable for photo-curing 3D printing, and mainly comprises various acrylate prepolymers, diluents, cracking photoinitiators and various auxiliary agents. The resin has the characteristics of high curing speed and low cost, but the free radical type photosensitive resin which is researched and reported at present still has the problems of poor tensile property, larger size of a cured structural member and the like, so that a photosensitive resin material suitable for photocuring 3D printing and a preparation method thereof are required to be developed so as to meet different application scenes.
Li Jianpeng et al [1] used Epoxidized Soybean Oil Acrylate (ESOA) as a prepolymer, isobornyl acrylate (Isoborneol acrylate, IBOA) as a diluent, (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide (TPO) as a photoinitiator, at a rate of 69.3:29.7:1, and the tensile strength of the photosensitive resin was 9.5MPa. Han Linlin et al [2] use aliphatic urethane acrylate as prepolymer, tripropylene glycol diacrylate as diluent, 2-methyl-1- (4-methylthiophenyl) -2-morpholin-1-one as photoinitiator in a ratio of 76.5:19:4.5 preparing a novel ultraviolet curing material, wherein the tensile strength of the novel ultraviolet curing material is 5.93MPa.
In summary, considering that the free radical type photosensitive resin reported in the prior study has the characteristics of good mechanical property, fast photo-curing reaction rate and relatively low cost, part of resin systems still have the problems of poor tensile property, larger size of a cured structural member and the like.
Disclosure of Invention
The invention aims to provide an aliphatic photosensitive resin material applied to 3D printing and a preparation method thereof, wherein the preparation method can obtain the photosensitive resin material with excellent mechanical properties without adding a cross-linking agent, an antioxidant and an enhancer, can realize rapid 3D printing, and expands the application field of the photosensitive resin material.
The technical scheme adopted by the invention for achieving the aim of the invention is as follows: an aliphatic photosensitive resin material applied to 3D printing and a preparation method thereof, wherein the preparation method comprises the following steps:
s1, preparing photosensitive resin raw materials according to 60-75wt% of aliphatic hexafunctional polyurethane acrylate, 20-38wt% of isobornyl acrylate and 2-5wt% of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide;
s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 7-10 days;
s3, adding aliphatic hexafunctional polyurethane acrylate into the brown bottle after standing, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 25-35r/min for 48-72h, standing for 10-30min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
Further, the step S1 of the invention prepares photosensitive resin raw materials according to the following mass percent: 72wt% of aliphatic six-functional polyurethane acrylate, 25wt% of isobornyl acrylate and 2wt% to 4wt% of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide.
Further, the specific method for ultrasonic bubble removal in the step S2 is to put the brown bottle into an ultrasonic cleaner and treat the brown bottle for 150S-250S at the power of 230w-250 w.
Further, in the step S3, aliphatic hexafunctional polyurethane acrylate is added into the settled brown bottle, the mixture is placed on a roller mixer, the components are fully mixed at the speed of 30r/min for 48h, and then the mixture is settled for 10min, so that bubbles generated in the mixing process are released, and the preparation of the photosensitive resin material is completed.
The design mechanism of the photosensitive resin material composition of the invention is as follows:
under ultraviolet irradiation, (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide is cracked to generate two active free radicals, the active free radicals activate acrylate groups on the isobornyl acrylate main chain and acrylate groups on aliphatic six-functional polyurethane acrylate chains, the molecules with the activated acrylate groups undergo polymerization reaction to form a crosslinked network, and finally a high polymer cured product is generated.
Compared with the prior art, the invention has the beneficial effects that:
1. the aliphatic polyurethane acrylic ester adopted by the invention has excellent light resistance, yellowing resistance, low viscosity, good comprehensive performance and good flexibility of the cured film, and also has good hardness and scratch resistance, strong oxygen inhibition capability and can prevent oxygen inhibition and yellowing to a certain extent. And the aliphatic polyurethane acrylate has six functional groups, and the aliphatic polyurethane acrylate and the isobornyl acrylate undergo photopolymerization reaction, so that the curing speed is high, the generated crosslinked network has high density, the tensile property is improved, and the printed resin material has excellent wear resistance.
2. The (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide has good ultraviolet absorption effect in the range of 405nm and bleaching effect.
3. According to the polymerization mechanism of diluents with different functionalities and side chain groups, the invention adopts the isobornyl acrylate as the diluent, and the isobornyl acrylate not only can effectively reduce the viscosity of aliphatic six-functional polyurethane acrylate, but also can endow the resin system with compatibility and low volatility.
In a word, the invention can prepare the resin with excellent mechanical properties by a simple preparation process without adding a cross-linking agent, an antioxidant and an enhancer.
Drawings
Fig. 1 is a schematic view of curing mechanism of the photosensitive resin materials of examples 1, 2 and comparative example 1.
Fig. 2 is a schematic diagram of the dimensions of the print model for 3D print design for examples 1, 2 and comparative example 1.
Fig. 3 is a schematic drawing showing tensile stress strain curves of the photosensitive resins printed in examples 1, 2 and comparative example 1.
Fig. 4 is a cross-sectional dimension view of the photosensitive resin printed in examples 1, 2 and comparative example 1.
Detailed Description
Example 1
The preparation method of the aliphatic photosensitive resin material applied to 3D printing comprises the following steps:
s1, preparing a photosensitive resin raw material according to 72 weight percent of aliphatic six-functional polyurethane acrylate, 25 weight percent of isobornyl acrylate and 3 weight percent of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide;
s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 8 days; the specific method for removing bubbles by ultrasonic wave comprises the steps of placing a brown bottle into an ultrasonic cleaner, and treating for 180 seconds with power of 240 w;
s3, adding aliphatic hexafunctional polyurethane acrylate into the settled brown bottle, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 30r/min for 48h, standing for 10min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
Example 2
The preparation method of the aliphatic photosensitive resin material applied to 3D printing comprises the following steps:
s1, preparing a photosensitive resin raw material according to 62 weight percent of aliphatic hexafunctional polyurethane acrylate, 35 weight percent of isobornyl acrylate and 3 weight percent of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide;
s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 8 days; the specific method for removing bubbles by ultrasonic wave comprises the steps of placing a brown bottle into an ultrasonic cleaner, and treating for 180 seconds with power of 240 w;
s3, adding aliphatic hexafunctional polyurethane acrylate into the settled brown bottle, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 30r/min for 48h, standing for 10min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
Comparative example 1
The preparation method of the aliphatic photosensitive resin material applied to 3D printing comprises the following steps:
s1, preparing a photosensitive resin raw material according to 52 weight percent of aliphatic hexafunctional polyurethane acrylate, 45 weight percent of isobornyl acrylate and 3 weight percent of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide;
s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 8 days; the specific method for removing bubbles by ultrasonic wave comprises the steps of placing a brown bottle into an ultrasonic cleaner, and treating for 180 seconds with power of 240 w;
s3, adding aliphatic hexafunctional polyurethane acrylate into the settled brown bottle, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 30r/min for 48h, standing for 10min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
The photosensitive resin materials prepared in example 1, example 2 and comparative example 1 were 3D printed, and fig. 1 is a schematic diagram of a curing mechanism of the photosensitive resin when 3D printing was performed in example 1 and example 2, and a specific 3D printing molding process is as follows:
establishing a three-dimensional model of a tensile sample by adopting Unigraphics NX (UG), and deriving a designed three-dimensional model by using an STL file format; the STL file is imported into ChiTuBox 64 software for slicing, the structural member is perpendicular to a forming platform, the file is stored, the structural member is connected with an LCD 3D printer through a USB flash disk, parameters of the LCD 3D printer are set, then bubble-free photosensitive resin is poured into a material tank, and after resin is leveled in a darkroom, photocuring 3D printing is started. Curing process parameterThe numbers are as follows: the wavelength is 405nm, the thickness of the printing layer is 0.15mm, the ultraviolet laser power is 240W, the printing speed is 50mm/h, and the photo-curing time is 3s. EXAMPLE 1 photosensitive resin Material photosensitive resin obtained by 3D printing was designated PUA 72 IBOA 25 TPO 3 Example 2 photosensitive resin Material photosensitive resin obtained by 3D printing was designated as PUA 62 IBOA 35 TPO 3 Comparative example 1 photosensitive resin Material the photosensitive resin obtained by 3D printing was designated as PUA 52 IBOA 45 TPO 3 。
The photosensitive resins obtained by 3D printing the photosensitive resin materials of example 1, example 2 and comparative example 1 were subjected to tensile test, which was performed with reference to international GB/T1040.2/1 BA/2-2006, 5 samples per group, tested at room temperature using an electronic universal tester, at a tensile speed of 2mm/min, and tensile strength and elongation at break were calculated using the formulas (1) and (2):
delta-tensile strength (MPa), F-maximum load (N), a-tensile specimen parallel portion width (mm), b-tensile specimen parallel portion thickness (mm).
Wherein epsilon-elongation at break (%), L-specimen breaking gauge length (mm), L 0 Sample raw gauge length (mm).
The tensile property test and the geometric structure measurement were performed on dumbbell-shaped samples of photosensitive resins obtained by 3D printing the photosensitive resin materials of example 1, example 2 and comparative example 1, and characterization results of fig. 3 and 4 were obtained, and fig. 3 is a schematic diagram of tensile stress strain curves of the photosensitive resins printed in example 1, example 2 and comparative example 1. Fig. 4 is a cross-sectional dimension chart obtained by geometric structural measurement of the printed photosensitive resin of example 1, example 2 and comparative example 1, and the summary of the data is shown in table 1. As can be seen from table 1, the ratio of aliphatic hexafunctional urethane acrylate to isobornyl acrylate is reduced, the tensile properties are gradually reduced, and the two cross-sectional dimensions of the cured article are also in a trend of decreasing, so that the isobornyl acrylate resin system can provide good tensile properties between the prepolymer and the diluent in a ratio of 62/35 to 72/25, and the isobornyl acrylate resin system exhibits excellent tensile properties at the prepolymer to diluent ratio of 72/25, and the actual dimensions are close to the design dimensions, and can be used as a photocurable 3D-printed resin system, which has high tensile strength without any increase in the strength enhancer.
TABLE 1 macroscopic Properties of isobornyl acrylate resin System
Example 3
The preparation method of the aliphatic photosensitive resin material applied to 3D printing comprises the following steps:
s1, preparing a photosensitive resin raw material according to 68 weight percent of aliphatic hexafunctional polyurethane acrylate, 29 weight percent of isobornyl acrylate and 3 weight percent of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide;
s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 8 days; the specific method for removing bubbles by ultrasonic wave comprises the steps of placing a brown bottle into an ultrasonic cleaner, and treating for 180 seconds with power of 240 w;
s3, adding aliphatic hexafunctional polyurethane acrylate into the settled brown bottle, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 30r/min for 48h, standing for 10min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
Example 4
The preparation method of the aliphatic photosensitive resin material applied to 3D printing comprises the following steps:
s1, preparing a photosensitive resin raw material according to 60 weight percent of aliphatic hexafunctional polyurethane acrylate, 38 weight percent of isobornyl acrylate and 2 weight percent of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide;
s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 7 days; the specific method for removing bubbles by ultrasonic wave comprises the steps of placing a brown bottle into an ultrasonic cleaner, and treating for 250s with power of 230 w;
s3, adding aliphatic hexafunctional polyurethane acrylate into the settled brown bottle, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 25r/min for 72h, standing for 30min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
Example 5
The preparation method of the aliphatic photosensitive resin material applied to 3D printing comprises the following steps:
s1, preparing photosensitive resin raw materials according to 75 weight percent of aliphatic hexafunctional polyurethane acrylate, 20 weight percent of isobornyl acrylate and 5 weight percent of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide;
s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 10 days; the specific method for removing bubbles by ultrasonic wave comprises the steps of placing a brown bottle into an ultrasonic cleaner, and treating for 150s with power of 250 w;
s3, adding aliphatic hexafunctional polyurethane acrylate into the settled brown bottle, placing the bottle on a roller mixing instrument, uniformly mixing the components for 50h at a speed of 35r/min, standing for 20min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
Example 6
The preparation method of the aliphatic photosensitive resin material applied to 3D printing comprises the following steps:
s1, preparing a photosensitive resin raw material according to 68 weight percent of aliphatic hexafunctional polyurethane acrylate, 28 weight percent of isobornyl acrylate and 4 weight percent of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide;
s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 8 days; the specific method for removing bubbles by ultrasonic wave comprises the steps of placing a brown bottle into an ultrasonic cleaner, and treating for 180 seconds with power of 240 w;
s3, adding aliphatic hexafunctional polyurethane acrylate into the settled brown bottle, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 30r/min for 48h, standing for 10min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
Claims (5)
1. The preparation method of the aliphatic photosensitive resin material applied to 3D printing comprises the following steps:
s1, preparing photosensitive resin raw materials according to 60-75wt% of aliphatic hexafunctional polyurethane acrylate, 20-38wt% of isobornyl acrylate and 2-5wt% of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide;
s2, putting isobornyl acrylate and (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide in the prepared raw materials into a brown bottle, removing bubbles by ultrasonic waves, and standing for 7-10 days;
s3, adding aliphatic hexafunctional polyurethane acrylate into the brown bottle after standing, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 25-35r/min for 48-72h, standing for 10-30min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
2. The method for preparing the aliphatic photosensitive resin material for 3D printing according to claim 1, wherein: the step S1 is to prepare photosensitive resin raw materials according to the following mass percentages: 72wt% of aliphatic six-functional polyurethane acrylate, 25wt% of isobornyl acrylate and 2wt% to 4wt% of (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide.
3. The method for preparing the aliphatic photosensitive resin material for 3D printing according to claim 1, wherein: the specific method for ultrasonic bubble removal in the step S2 is to put the brown bottle into an ultrasonic cleaner and treat the brown bottle for 150S to 250S at the power of 230w to 250 w.
4. The method for preparing the aliphatic photosensitive resin material for 3D printing according to claim 1, wherein: and step S3, adding aliphatic hexafunctional polyurethane acrylate into the settled brown bottle, placing the bottle on a roller mixing instrument, uniformly mixing the components at a speed of 30r/min for 48h, standing for 10min, and releasing bubbles generated in the mixing process to finish the preparation of the photosensitive resin material.
5. An aliphatic photosensitive resin material applied to 3D printing, characterized in that: the photosensitive resin material is prepared by the preparation method of any one of claims 1-4.
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