CN114347464A - A 3D printing photosensitive material using green light as light curing light source and its 3D printer - Google Patents
A 3D printing photosensitive material using green light as light curing light source and its 3D printer Download PDFInfo
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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
- B29C64/10—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
- B29C64/129—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 characterised by the energy source therefor, e.g. by global irradiation combined with a mask
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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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
- B33Y10/00—Processes of additive manufacturing
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Abstract
本发明公开了一种以绿光为光固化光源的3D打印光敏材料，至少包括绿光光引发体系，其中，所述绿光光引发体系为在绿光波长范围内具有光吸收引发能力的Norrish I型和Norrish II型光敏剂，包括姜黄素类化合物/鎓盐体系、二氟硼类姜黄素化合物/鎓盐体系、含二茂铁共轭茚二酮化合物/鎓盐/氮甲基吡咯烷酮体系、亚苄基酮类化合物/鎓盐体系、亚苄基酮类化合物/胺体系。本发明有益效果在于，一方面，通过波长越长光折射率越低，以及波长越长光穿透能力越强的原理，可以显著提高3D打印材料的固化深度，避免层间开裂问题，尤其是高折射率的3D打印材料，如3D打印光敏陶瓷浆料等；另一方面，通过波长越长光折射率越低的原理，可以显著降低3D打印材料的固化宽度，提高固化和打印精度，尤其是高折射率的3D打印材料，如3D打印光敏陶瓷浆料等。
The invention discloses a 3D printing photosensitive material using green light as a photocuring light source, at least comprising a green light photoinitiating system, wherein the green light photoinitiating system is Norrish with light absorption initiating ability in the green light wavelength range Type I and Norrish Type II photosensitizers, including curcuminoid/onium salt system, difluoroboron curcuminoid compound/onium salt system, ferrocene-containing conjugated indane compound/onium salt/nitrogen methylpyrrolidone system , Benzylidene ketone compound/onium salt system, benzylidene ketone compound/amine system. The beneficial effect of the present invention is that, on the one hand, through the principle that the longer the wavelength is, the lower the refractive index of the light is, and the longer the wavelength is, the stronger the light penetration ability is, the curing depth of the 3D printing material can be significantly improved, and the problem of interlayer cracking can be avoided, especially 3D printing materials with high refractive index, such as 3D printing photosensitive ceramic paste, etc.; on the other hand, through the principle that the longer the wavelength of light, the lower the refractive index, the curing width of the 3D printing material can be significantly reduced, and the curing and printing accuracy can be improved, especially It is a 3D printing material with high refractive index, such as 3D printing photosensitive ceramic paste.
Description
技术领域technical field
发明涉及3D打印领域，具体涉及一种以绿光为光固化光源的3D打印光敏材料及其3D打印机。The invention relates to the field of 3D printing, in particular to a 3D printing photosensitive material using green light as a light curing light source and a 3D printer thereof.
背景技术Background technique
光固化型3D打印方法是指以光固化(光聚合)方法为基础的3D打印方法，具有速度快、效率高、精度好的特点。现有的光固化型3D打印方法多采用紫外光源，这是由于目前的商业光引发剂几乎全部都是紫外光下使用的。The light-curing 3D printing method refers to the 3D printing method based on the light-curing (photopolymerization) method, which has the characteristics of high speed, high efficiency and good precision. Existing photocuring 3D printing methods mostly use ultraviolet light sources, because almost all of the current commercial photoinitiators are used under ultraviolet light.
在实际使用过程中，基于紫外光源的光固化型3D打印方法，存在精度差、易分层、成功率低的问题。这是由于光固化3D打印过程中以光的形状和范围来控制3D打印过程，而无论是光敏树脂，各类光敏浆料中的粉体，都存在光折射率，会使光在3D打印过程中发生折射而导致精度误差，并降低固化深度使层间开裂，尤其是高折射率光敏材料体系，如光敏陶瓷浆料的3D打印等。In the actual use process, the light-curing 3D printing method based on ultraviolet light source has the problems of poor precision, easy delamination and low success rate. This is because the shape and range of light control the 3D printing process in the process of photo-curing 3D printing. Whether it is photosensitive resin or powder in various photosensitive pastes, there is a refractive index of light, which will make the light in the 3D printing process. Refraction occurs in the medium, which leads to precision errors, and reduces the curing depth to cause interlayer cracking, especially for high-refractive-index photosensitive material systems, such as 3D printing of photosensitive ceramic pastes.
这一现象目前已经有相关理论作为支撑。在光固化型陶瓷3D打印方法中，光固化区域最明显的现象就是固化深度和额外固化宽度的变化。固化深度是指在光照下，光敏陶瓷浆料在一定时间内能达到的最大固化厚度，额外固化宽度是指非光照区域光敏陶瓷浆料的固化宽度，额外固化宽度的产生是由于光折射率导致的。关于光敏陶瓷固化时的现象已经有了较为成熟的理论体系。This phenomenon has been supported by relevant theories. In the light-cured ceramic 3D printing method, the most obvious phenomenon in the light-cured area is the change of the curing depth and the additional curing width. The curing depth refers to the maximum curing thickness that the photosensitive ceramic paste can reach in a certain period of time under illumination. The additional curing width refers to the curing width of the photosensitive ceramic paste in the non-illuminated area. The additional curing width is caused by the refractive index of light. of. There has been a relatively mature theoretical system about the phenomenon of photosensitive ceramic curing.
Halloran等根据Jacob方程和Beer-Lambert定律等相关公式和研究，给出固化深度Cd和固化宽度与能量的关系。Halloran et al. gave the relationship between the solidification depth Cd and the solidification width and energy according to the Jacob equation and the Beer-Lambert law and other related formulas and studies.
wex＝wcure-wbeam w ex =w cure -w beam
式中，Dd和Dw分别为光敏陶瓷浆料在垂直和水平方向的灵敏度，E0为光照时间内的能量剂量，Ed和Ew分别为垂直和水平方向上发生固化的临界能量剂量。如在实验过程中，wex由固化宽度实验得到，wcure为固化宽度，wbeam为狭缝宽度。In the formula, D d and D w are the sensitivity of the photosensitive ceramic paste in the vertical and horizontal directions, E 0 is the energy dose during the illumination time, and Ed and E w are the critical energy dose for curing in the vertical and horizontal directions, respectively. . For example, during the experiment, w ex is obtained from the curing width experiment, w cure is the curing width, and w beam is the slit width.
目前基于紫外光源的光固化型3D打印方法存在以下缺点：1、固化深度低，尤其是高折射率、高吸光率的光敏体系，如光敏陶瓷浆料、光敏金属浆料等，在3D打印过程中会出现层间开裂的问题；2、固化和打印精度差，由于光折射现象的存在，在非固化区域存在大量的折射光，导致出现边缘固化，使打印精度降低，尤其是高折射率、高吸光率的光敏体系，如光敏陶瓷浆料、光敏金属浆料等；3、固化深度和固化精度相互冲突，如提高光强有利于提高固化深度，但同时也会使边缘固化增多导致精度下降；4、已有的方法中，如增加吸光染料来提高精度的办法，不适用于高折射率、高吸光率的光敏材料中，这是由于这些光敏材料自身的固化深度已经较差的情况下，加入提高精度的吸光染料会进一步降低固化深度，导致层间开裂等问题。The current photocurable 3D printing method based on UV light source has the following disadvantages: 1. Low curing depth, especially for photosensitive systems with high refractive index and high absorbance, such as photosensitive ceramic paste, photosensitive metal paste, etc., in the 3D printing process 2. Poor curing and printing accuracy, due to the existence of light refraction, there is a large amount of refracted light in the non-cured area, resulting in edge curing, which reduces the printing accuracy, especially high refractive index, Photosensitive systems with high absorbance, such as photosensitive ceramic paste, photosensitive metal paste, etc.; 3. The curing depth and curing accuracy conflict with each other. For example, increasing the light intensity is conducive to increasing the curing depth, but at the same time, it will also increase the edge curing and lead to a decrease in accuracy. 4. In the existing methods, such as adding light-absorbing dyes to improve the accuracy, it is not suitable for photosensitive materials with high refractive index and high light absorption, because the curing depth of these photosensitive materials is already poor. , the addition of light-absorbing dyes that improve precision will further reduce the curing depth, resulting in problems such as interlayer cracking.
发明内容SUMMARY OF THE INVENTION
鉴于现有技术的不足，本发明旨在于提供一种以绿光为光固化光源的3D打印光敏材料及其3D打印机，能够解决紫外光源下的光固化3D打印方法固化深度低、固化精度差的问题。In view of the deficiencies of the prior art, the present invention aims to provide a 3D printing photosensitive material using green light as a light curing light source and a 3D printer thereof, which can solve the problems of low curing depth and poor curing accuracy of the photocuring 3D printing method under ultraviolet light source. question.
为了实现上述目的，本发明采用的技术方案如下：In order to achieve the above object, the technical scheme adopted in the present invention is as follows:
一种以绿光为光固化光源的3D打印光敏材料，至少包括绿光光引发体系，其中，所述绿光光引发体系为在绿光波长范围内具有光吸收引发能力的Norrish I型和Norrish II型光敏剂，包括姜黄素类化合物/鎓盐体系、二氟硼类姜黄素化合物/鎓盐体系、含二茂铁共轭茚二酮化合物/鎓盐/氮甲基吡咯烷酮体系、亚苄基酮类化合物/鎓盐体系、亚苄基酮类化合物/胺体系。A 3D printing photosensitive material using green light as a photocuring light source, at least comprising a green light photoinitiating system, wherein the green light photoinitiating system is Norrish I type and Norrish type I and Norrish type having light absorption initiating ability in the green light wavelength range Type II photosensitizers, including curcuminoid compound/onium salt system, difluoroboron curcuminoid compound/onium salt system, ferrocene-containing conjugated indanedione compound/onium salt/nitrogen methyl pyrrolidone system, benzylidene Ketones/onium salt systems, benzylidene ketones/amine systems.
需要说明的是，所述光敏材料可用于组成3D打印光敏树脂、3D打印光敏陶瓷浆料、3D打印光敏金属浆料或3D打印光敏铸造蜡浆料的一种。It should be noted that the photosensitive material can be used to form one of 3D printing photosensitive resin, 3D printing photosensitive ceramic paste, 3D printing photosensitive metal paste or 3D printing photosensitive casting wax paste.
需要说明的是，所述3D打印光敏树脂含有绿光光引发体系、光敏型丙烯酸树脂与助剂，其三者的的重量比例为(0.1-5)：(90-99.5)：(0.4-5)。It should be noted that the 3D printing photosensitive resin contains a green light photoinitiating system, a photosensitive acrylic resin and an auxiliary agent, and the weight ratio of the three is (0.1-5): (90-99.5): (0.4-5 ).
需要说明的是，所述3D打印光敏陶瓷浆料含有绿光光引发体系、光敏型丙烯酸树脂、陶瓷粉体与助剂，其四者的重量比例为(0.1-5)：(9.5-54.5)：(45-90)：(0.4-5)。It should be noted that the 3D printing photosensitive ceramic paste contains green light photoinitiating system, photosensitive acrylic resin, ceramic powder and additives, and the weight ratio of the four is (0.1-5): (9.5-54.5) :(45-90):(0.4-5).
需要说明的是，所述3D打印光敏金属浆料含有3D打印光敏金属浆料中绿光光引发体系、光敏型丙烯酸树脂、金属粉体与助剂，其四者的重量比例为(0.1-5)：(9.5-30)：(60-90)：(0.4-5)。It should be noted that the 3D printing photosensitive metal paste contains green light photoinitiating system, photosensitive acrylic resin, metal powder and additives in the 3D printing photosensitive metal paste, and the weight ratio of the four is (0.1-5 ): (9.5-30): (60-90): (0.4-5).
需要说明的是，3D打印光敏铸造蜡浆料中绿光光引发体系、光敏型丙烯酸树脂、蜡粉与助剂，其四者的重量比例为(0.1-5)：(19.5-60)：(30-80)：(0.4-5)。It should be noted that the weight ratio of the green light photoinitiating system, photosensitive acrylic resin, wax powder and additives in the 3D printing photosensitive casting wax slurry is (0.1-5): (19.5-60): ( 30-80): (0.4-5).
本发明还提供一种具有以绿光为光固化光源的3D打印光敏材料的光固化型3D打印机，所述光固化型3D打印机为SLA-3D打印机、DLP-3D打印机或LCD-3D打印机中的一种。The present invention also provides a light-curing 3D printer having a 3D printing photosensitive material using green light as a light-curing light source, wherein the light-curing 3D printer is an SLA-3D printer, a DLP-3D printer or an LCD-3D printer. A sort of.
需要说明的是，所述所述光固化型3D打印机包括绿光LED芯片与绿光激光光源，其中，绿光光源波长范围为492-577nm。It should be noted that the photocurable 3D printer includes a green LED chip and a green laser light source, wherein the wavelength range of the green light source is 492-577 nm.
作为本发明的应用，本发明还提供一种以绿光为光固化光源的3D打印光敏材料的光固化型3D打印机，可应用于手办制作、陶瓷成型、金属成型、蜡模成型中。As an application of the present invention, the present invention also provides a light-curing 3D printer for 3D printing photosensitive materials using green light as a light-curing light source, which can be used in figure making, ceramic molding, metal molding, and wax mold molding.
本发明有益效果在于，一方面，通过波长越长光折射率越低，以及波长越长光穿透能力越强的原理，可以显著提高3D打印材料的固化深度，避免层间开裂问题，尤其是高折射率的3D打印材料，如3D打印光敏陶瓷浆料等；另一方面，通过波长越长光折射率越低的原理，可以显著降低3D打印材料的固化宽度，提高固化和打印精度，尤其是高折射率的3D打印材料，如3D打印光敏陶瓷浆料等。The beneficial effect of the present invention is that, on the one hand, through the principle that the longer the wavelength is, the lower the refractive index of the light is, and the longer the wavelength is, the stronger the light penetration ability is, the curing depth of the 3D printing material can be significantly improved, and the problem of interlayer cracking can be avoided, especially 3D printing materials with high refractive index, such as 3D printing photosensitive ceramic paste, etc.; on the other hand, through the principle that the longer the wavelength, the lower the refractive index of light, the curing width of the 3D printing material can be significantly reduced, and the curing and printing accuracy can be improved, especially It is a 3D printing material with high refractive index, such as 3D printing photosensitive ceramic paste.
附图说明Description of drawings
图1为本发明优选实施例中涉及的在紫外光和绿光下3D打印光敏陶瓷浆料的固化宽度实验数据。FIG. 1 is the experimental data of the curing width of the 3D printing photosensitive ceramic paste under ultraviolet light and green light involved in the preferred embodiment of the present invention.
具体实施方式Detailed ways
下将结合附图对本发明作进一步的描述，需要说明的是，本实施例以本技术方案为前提，给出了详细的实施方式和具体的操作过程，但本发明的保护范围并不限于本实施例。The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the present embodiment takes the technical solution as the premise, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the present invention. Example.
本发明为一种以绿光为光固化光源的3D打印光敏材料，至少包括绿光光引发体系，其中，所述绿光光引发体系为在绿光波长范围内具有光吸收引发能力的Norrish I型和Norrish II型光敏剂，包括姜黄素类化合物/鎓盐体系、二氟硼类姜黄素化合物/鎓盐体系、含二茂铁共轭茚二酮化合物/鎓盐/氮甲基吡咯烷酮体系、亚苄基酮类化合物/鎓盐体系、亚苄基酮类化合物/胺体系。The present invention is a 3D printing photosensitive material using green light as a photocuring light source, at least comprising a green light photoinitiating system, wherein the green light photoinitiating system is Norrish I with light absorption initiating ability in the green light wavelength range Type II and Norrish type II photosensitizers, including curcuminoid compound/onium salt system, difluoroboron curcuminoid compound/onium salt system, ferrocene-containing conjugated indane compound/onium salt/nitrogen methylpyrrolidone system, Benzylidene ketones/onium salt systems, benzylidene ketones/amine systems.
进一步的，本发明的所述光敏材料可用于组成3D打印光敏树脂、3D打印光敏陶瓷浆料、3D打印光敏金属浆料或3D打印光敏铸造蜡浆料的一种。Further, the photosensitive material of the present invention can be used to form one of 3D printing photosensitive resin, 3D printing photosensitive ceramic paste, 3D printing photosensitive metal paste or 3D printing photosensitive casting wax paste.
进一步的，本发明的所述3D打印光敏树脂含有绿光光引发体系、光敏型丙烯酸树脂与助剂，其三者的的重量比例为(0.1-5)：(90-99.5)：(0.4-5)。Further, the 3D printing photosensitive resin of the present invention contains a green light photoinitiating system, a photosensitive acrylic resin and an auxiliary agent, and the weight ratio of the three is (0.1-5): (90-99.5): (0.4- 5).
进一步的，本发明的所述3D打印光敏陶瓷浆料含有绿光光引发体系、光敏型丙烯酸树脂、陶瓷粉体与助剂，其四者的重量比例为(0.1-5)：(9.5-54.5)：(45-90)：(0.4-5)。Further, the 3D printing photosensitive ceramic slurry of the present invention contains a green light photoinitiating system, a photosensitive acrylic resin, a ceramic powder and an auxiliary agent, and the weight ratio of the four is (0.1-5): (9.5-54.5 ): (45-90): (0.4-5).
进一步的，本发明的所述3D打印光敏金属浆料含有3D打印光敏金属浆料中绿光光引发体系、光敏型丙烯酸树脂、金属粉体与助剂，其四者的重量比例为(0.1-5)：(9.5-30)：(60-90)：(0.4-5)。Further, the 3D printing photosensitive metal paste of the present invention contains green light photoinitiating system, photosensitive acrylic resin, metal powder and auxiliary agent in the 3D printing photosensitive metal paste, and the weight ratio of the four is (0.1- 5): (9.5-30): (60-90): (0.4-5).
进一步的，本发明的3D打印光敏铸造蜡浆料中绿光光引发体系、光敏型丙烯酸树脂、蜡粉与助剂，其四者的重量比例为(0.1-5)：(19.5-60)：(30-80)：(0.4-5)。Further, in the 3D printing photosensitive casting wax slurry of the present invention, the weight ratio of the green light photoinitiating system, the photosensitive acrylic resin, the wax powder and the auxiliary agent is (0.1-5): (19.5-60): (30-80): (0.4-5).
本发明还提供一种具有以绿光为光固化光源的3D打印光敏材料的光固化型3D打印机，所述光固化型3D打印机为SLA-3D打印机、DLP-3D打印机或LCD-3D打印机中的一种。The present invention also provides a light-curing 3D printer having a 3D printing photosensitive material using green light as a light-curing light source, wherein the light-curing 3D printer is an SLA-3D printer, a DLP-3D printer or an LCD-3D printer. A sort of.
进一步的，本发明的所述所述光固化型3D打印机包括绿光LED芯片与绿光激光光源，其中，绿光光源波长范围为492-577nm。Further, the photocurable 3D printer of the present invention includes a green LED chip and a green laser light source, wherein the green light source has a wavelength range of 492-577 nm.
作为本发明的应用，本发明还提供一种以绿光为光固化光源的3D打印光敏材料的光固化型3D打印机，可应用于手办制作、陶瓷成型、金属成型、蜡模成型中。As an application of the present invention, the present invention also provides a light-curing 3D printer for 3D printing photosensitive materials using green light as a light-curing light source, which can be used in figure making, ceramic molding, metal molding, and wax mold molding.
需要说明的是，以下通过不同型号的3D打印机进一步说明本发明技术方案的优势。It should be noted that the advantages of the technical solution of the present invention are further described below by using different types of 3D printers.
实施例一Example 1
本实施例公开了一种SLA型3D打印机及3D打印方法，该3D打印方法通过使用以绿光作为光源的SLA-3D打印机来实施，光源为520nm绿光激光光源。This embodiment discloses an SLA-type 3D printer and a 3D printing method. The 3D printing method is implemented by using an SLA-3D printer using green light as a light source, and the light source is a 520 nm green laser light source.
本实施例还公开了一种3D打印光敏树脂，使用吩噻嗪姜黄素/碘鎓盐作为绿光光引发体系，含量为0.5g/1.5g，光敏树脂组成为环氧丙烯酸树脂/二官能度聚氨酯丙烯酸树脂/三缩丙二醇二丙烯酸酯为35g/25g/35g，消泡剂/附着力促进剂为1g/2g.This embodiment also discloses a 3D printing photosensitive resin, which uses phenothiazine curcumin/iodonium salt as the green light photoinitiating system, the content is 0.5g/1.5g, and the photosensitive resin is composed of epoxy acrylic resin/difunctionality Urethane acrylic resin/tripropylene glycol diacrylate is 35g/25g/35g, defoamer/adhesion promoter is 1g/2g.
本实施例中，3D打印光敏树脂在500mJ时的固化深度为53mm。In this example, the curing depth of the 3D printing photosensitive resin at 500 mJ is 53 mm.
本实施例中，工作时绿光SLA-3D打印机的光功率密度为500mW/cm2，聚焦平面光斑尺寸为0.15mm，层厚为0.05mm(精密制造)/0.5mm(快速制造)，成型精度为0.01mm(精密制造)/0.1mm(快速制造)，扫描速度为10m/s。In this embodiment, the optical power density of the green light SLA-3D printer is 500mW/cm 2 , the spot size of the focal plane is 0.15mm, the layer thickness is 0.05mm (precision manufacturing)/0.5mm (rapid manufacturing), and the molding accuracy is It is 0.01mm (precision manufacturing)/0.1mm (rapid manufacturing), and the scanning speed is 10m/s.
本实施例公开的一种以绿光为光源的光固化型3D打印方法，可以用于小型手办高精度制造和大型模型的快速制造。A light-curing 3D printing method using green light as a light source disclosed in this embodiment can be used for high-precision manufacturing of small figures and rapid manufacturing of large models.
实施例二Embodiment 2
本实施例公开了一种DLP型3D打印机及3D打印方法，该3D打印方法通过使用以绿光作为光源的DLP-3D打印机来实施，光源为520nm绿光激光光源。This embodiment discloses a DLP-type 3D printer and a 3D printing method. The 3D printing method is implemented by using a DLP-3D printer using green light as a light source, and the light source is a 520 nm green laser light source.
本实施例还公开了一种3D打印光敏陶瓷浆料，使用三苯胺姜黄素/碘鎓盐作为绿光光引发体系，含量为0.5g/1.5g，光敏树脂组成为丙烯酰吗啉/六官能度聚氨酯丙烯酸树脂/三缩丙二醇二丙烯酸酯为5g/8g/7g，氧化锆纳米粉为75g，消泡剂/分散剂为1g/2g.This embodiment also discloses a 3D printing photosensitive ceramic slurry, using triphenylamine curcumin/iodonium salt as the green light photoinitiating system, the content is 0.5g/1.5g, and the photosensitive resin is composed of acryloyl morpholine/hexafunctional Polyurethane acrylic resin/tripropylene glycol diacrylate is 5g/8g/7g, zirconia nanopowder is 75g, and defoamer/dispersant is 1g/2g.
本实施例中，3D打印光敏陶瓷浆料在500mJ时的固化深度为1.00mm。In this embodiment, the curing depth of the 3D printing photosensitive ceramic paste at 500 mJ is 1.00 mm.
本实施例中，工作时绿光DLP-3D打印机的光功率密度为10mW/cm2，层厚为0.05mm(精密制造)/0.1mm(快速制造)，成型精度为0.05mm(精密制造)/0.1mm(快速制造)，单层曝光时间为20s。In this embodiment, the optical power density of the green light DLP-3D printer is 10mW/cm 2 , the layer thickness is 0.05mm (precision manufacturing)/0.1mm (rapid manufacturing), and the molding accuracy is 0.05mm (precision manufacturing)/ 0.1mm (rapid manufacturing) with a single layer exposure time of 20s.
本实施例公开的一种以绿光为光源的光固化型3D打印方法，可以用于氧化锆陶瓷部件的高精度快速制造。A light-curing 3D printing method using green light as a light source disclosed in this embodiment can be used for high-precision and rapid manufacturing of zirconia ceramic parts.
实施例三Embodiment 3
本实施例公开了一种DLP型3D打印机及3D打印方法，该3D打印方法通过使用以绿光作为光源的DLP-3D打印机来实施，光源为520nm绿光激光光源。This embodiment discloses a DLP-type 3D printer and a 3D printing method. The 3D printing method is implemented by using a DLP-3D printer using green light as a light source, and the light source is a 520 nm green laser light source.
本实施例还公开了一种3D打印光敏金属浆料，使用三苯胺姜黄素/碘鎓盐作为绿光光引发体系，含量为0.5g/1.5g，光敏树脂组成为丙烯酰吗啉/六官能度聚氨酯丙烯酸树脂/三缩丙二醇二丙烯酸酯为2g/9g/4g，球形钨纳米粉为80g，防沉剂/分散剂为2g/1g.This embodiment also discloses a 3D printing photosensitive metal paste, using triphenylamine curcumin/iodonium salt as the green light photoinitiating system, the content is 0.5g/1.5g, and the photosensitive resin is composed of acryloyl morpholine/hexafunctional Polyurethane acrylic resin/tripropylene glycol diacrylate is 2g/9g/4g, spherical tungsten nanopowder is 80g, and anti-settling agent/dispersant is 2g/1g.
本实施例中，3D打印光敏金属浆料在500mJ时的固化深度为0.86mm。In this example, the curing depth of the 3D printing photosensitive metal paste at 500 mJ is 0.86 mm.
本实施例中，工作时绿光DLP-3D打印机的光功率密度为10mW/cm2，层厚为0.05mm(精密制造)/0.1mm(快速制造)，成型精度为0.01mm(精密制造)/0.05mm(快速制造)，单层曝光时间为20s。In this embodiment, the optical power density of the green light DLP-3D printer during operation is 10mW/cm 2 , the layer thickness is 0.05mm (precision manufacturing)/0.1mm (rapid manufacturing), and the molding accuracy is 0.01mm (precision manufacturing)/ 0.05mm (rapid manufacturing) with a single layer exposure time of 20s.
本实施例公开的一种以绿光为光源的光固化型3D打印方法，可以用于金属钨部件的高精度快速制造。A light-curing 3D printing method using green light as a light source disclosed in this embodiment can be used for high-precision and rapid manufacturing of metal tungsten parts.
实施例四Embodiment 4
本实施例公开了一种SLA型3D打印机及3D打印方法，该3D打印方法通过使用以绿光作为光源的SLA-3D打印机来实施，光源为520nm绿光激光光源。This embodiment discloses an SLA-type 3D printer and a 3D printing method. The 3D printing method is implemented by using an SLA-3D printer using green light as a light source, and the light source is a 520 nm green laser light source.
本实施例还公开了一种3D打印光敏铸造蜡浆料，使用二甲胺基姜黄素/碘鎓盐作为绿光光引发体系，含量为0.5g/1.5g，光敏树脂组成为聚乙二醇丙烯酸酯/1，6-己二醇二丙烯酸酯/三缩丙二醇二丙烯酸酯为25g/10g/10g，聚乙烯蜡粉为50g，流平剂/分散剂为2g/1g。This embodiment also discloses a 3D printing photosensitive casting wax slurry, using dimethylamino curcumin/iodonium salt as the green light photoinitiating system, the content is 0.5g/1.5g, and the photosensitive resin is composed of polyethylene glycol Acrylate/1,6-hexanediol diacrylate/tripropylene glycol diacrylate is 25g/10g/10g, polyethylene wax powder is 50g, and leveling agent/dispersing agent is 2g/1g.
本实施例中，3D打印光敏金属浆料在500mJ时的固化深度为62mm。In this embodiment, the curing depth of the 3D printing photosensitive metal paste at 500 mJ is 62 mm.
本实施例中，工作时绿光SLA-3D打印机的光功率密度为500mW/cm2，聚焦平面光斑尺寸为0.15mm，层厚为0.05mm(精密制造)/0.5mm(快速制造)，成型精度为0.01mm(精密制造)/0.1mm(快速制造)，扫描速度为10m/s。In this embodiment, the optical power density of the green light SLA-3D printer is 500mW/cm 2 , the spot size of the focal plane is 0.15mm, the layer thickness is 0.05mm (precision manufacturing)/0.5mm (rapid manufacturing), and the molding accuracy is It is 0.01mm (precision manufacturing)/0.1mm (rapid manufacturing), and the scanning speed is 10m/s.
本实施例公开的一种以绿光为光源的光固化型3D打印方法，可以用于蜡模的高精度快速制造。A light-curing 3D printing method using green light as a light source disclosed in this embodiment can be used for high-precision and rapid manufacturing of wax molds.
对于本领域的技术人员来说，可根据以上描述的技术方案以及构思，做出其它各种相应的改变以及变形，而所有的这些改变以及变形都应该属于本发明权利要求的保护范围之内。For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present invention.
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Application publication date: 20220415 |