CLEANING SOLUTION FOR HIGH-YIELD-STRESS CERAMIC MATERIAL 3D PRINTING BLANK, PREPARATION METHOD THEREFOR AND USE THEREOF

Abstract

Disclosed in the present invention are a cleaning solution for a high-yield-stress ceramic material 3D printing blank, a preparation method therefor and the use thereof. The cleaning solution is composed of a main cleaning agent and an auxiliary cleaning agent, wherein the main cleaning agent is isobornyl acrylate (IBOA), N-acryloylmorpholine (ACMO), hydroxyethyl methacrylate (HEMA), 3-ethyl-3-oxetanemethanol (EHO), or a combination thereof. According to the cleaning solution of the present invention, ultrasonic cleaning or pressure spraying is used, such that the problem of cleaning the high-yield-stress ceramic material 3D printing blank is effectively solved. The present invention is not only simple to clean, but also has a good effect and excellent efficiency.

Claims

1. A cleaning liquid for 3D printing green body of high-yield-stress ceramic material, comprising a main cleaning agent and an auxiliary cleaning agent; the main cleaning agent is isobornyl acrylate, N-acrylylmorpholine, 2-Hydroxyethyl methacrylate, 3-ethyl-3-oxetanemethanol, or a combination thereof.

2. The cleaning liquid for 3D printing green body of high-yield-stress ceramic material according to claim 1, wherein the auxiliary cleaning agent is Dispers 750W, Dispers 655, Tego 688, Tego 755, or a combination thereof.

3. The cleaning liquid for 3D printing green body of high-yield-stress ceramic material according to claim 1, wherein the main cleaning agent is mixed with the auxiliary cleaning agent to obtain the cleaning liquid for 3D printing green body of high-yield-stress ceramic material.

4. The cleaning liquid for 3D printing green body of high-yield-stress ceramic material according to claim 1, wherein a weight of the auxiliary cleaning agent is 0-3% of a weight of the main cleaning agent, excluding 0.

5. The cleaning liquid for 3D printing green body of high-yield-stress ceramic material according to claim 4, wherein the weight of the auxiliary cleaning agent is 0.4-1.5% of the weight of the main cleaning agent.

6. The cleaning liquid for 3D printing green body of high-yield-stress ceramic material according to claim 5, wherein the weight of the auxiliary cleaning agent is 0.6-0.9% of the weight of the main cleaning agent.

7. A preparation method of the cleaning liquid for 3D printing green body of high-yield-stress ceramic material according to claim 1, comprising mixing the main cleaning agent with the auxiliary cleaning agent to obtain the cleaning liquid for 3D printing green body of high-yield-stress ceramic material.

8. The preparation method of the cleaning liquid for 3D printing green body of high-yield-stress ceramic material according to claim 7, wherein the mixing is carried out at a normal temperature.

9. The preparation method of the cleaning liquid for 3D printing green body of high-yield-stress ceramic material according to claim 7, wherein the auxiliary cleaning agent is Dispers 750W, Dispers 655, Tego 688, Tego 755m or a combination thereof.

10. An application of the cleaning liquid for 3D printing green body of high-yield-stress ceramic material according to claim 1 in cleaning green body of 3D printing of high-yield-stress ceramic material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 shows the rheological curve of high-yield-stress ceramic material.

[0012] FIG. 2 shows the photo of the 3D printing green body of high-yield-stress ceramic material.

[0013] FIG. 3 shows the spray cleaning effect of the cleaning liquid in Example 1.

[0014] FIG. 4 shows the ultrasonic cleaning effect of the cleaning liquid in Example 1.

[0015] FIG. 5 shows the will flow surface effect of the cleaning liquid after spray cleaning and ultrasonic cleaning in Example 1.

[0016] FIG. 6 shows the ultrasonic cleaning effect of the cleaning liquid in Control 3.

EXAMPLES OF THE PRESENT INVENTION

[0017] The following is the clear and complete description of the technical solutions with the Example of the present invention. Obviously, the described Examples are only part of the Examples of the present invention, rather than all of them. All other Examples obtained by those of ordinary skill in the art without creative work based on the Examples of the present invention shall fall within the protection scope of the present invention.

[0018] The specific Examples of the invention are further described in detail below.

[0019] The cleaning liquid for 3D printing green body of high-yield-stress ceramic material is composed of main cleaning agent and auxiliary cleaning agent; The main cleaning agent is one or a combination of isobornyl acrylate (IBOA), N-acrylylmorpholine (ACMO), 2-Hydroxyethyl methacrylate (HEMA), and 3-ethyl-3-oxetanemethanol (EHO); The auxiliary cleaning agent is one or a combination of Dispers 750W, Dispers 655, Tego 688, and Tego 755 from Tego.

[0020] Furthermore, in the cleaning liquid for 3D printing green body of high-yield-stress ceramic material, the weight of the auxiliary cleaning agent is 0-3% of the weight of the main cleaning agent, excluding 0; preferably, the weight of the auxiliary cleaning agent is 0.4-1.5% of that of the main cleaning agent, with the most preferably 0.6-0.9%.

TABLE-US-00001 TABLE 1 Components of the cleaning liquid for 3D printing green body of ceramic material main Dosage of main availiary Dosage of auxiliary cleaning agent cleaning agent cleaning agent cleaning agent Example 1 IBOA 10000 Tego 688 80 Example 2 ACMO 10000 Tego 755 60 Example 3 HEMA/EHO 10000 Dispers 750W 90 Control 1 HDDA 10000 Tego 688 80 Control IBOA 10000 BYK-111 80 Control HDDA/anhydrous 10000 BYK-111 180 ethanol Existingcleaning Commercially available NW water based cleaning agent liquid Example 4 IBOA 10000 Tego 688 40 Example 5 ACMO 10000 Tego 755 120 Example 6 IBOA 10000 Tego 688 150

[0021] Note: In Example 3, the weight ratio of HEMA and EHO is 6:4; In Control 1, HDDA is 1,6-hexanediol diacrylate; In Control 3, the volume ratio of HDDA/anhydrous ethanol is 1:1.

[0022] The preparation method for the above cleaning liquid is to mix the main cleaning agent and the auxiliary cleaning agent to obtain the cleaning liquid for 3D printing green body of high-yield-stress ceramic material. And the Example is the cleaning liquid for 3D printing green body of high-yield-stress ceramic material.

[0023] Application of the Example: The composition of high-yield-stress ceramic material is (mass fraction): 12 portions of HDDA (1,6-hexanediol diacrylate), 2 portions of PPTTA (Ethoxylated (5) pentaerythritol tetraacrylate), 0.5 portions of dispersant Anti-terra U100, 3 portions of DBP (dibutyl phthalate), and 82.5 portions of aluminum oxide. The above components were obtained through conventional ball milling and wetting dispersion to obtain a high yield stress (260 Pa) ceramic 3D printing material, and the rheological curve is shown in FIG. 1.

[0024] A 3D printing equipment (iAMC150, Suzhou ZRapid Technology Co., Ltd.) was used for conventional printing to obtain a 3D printing green body of high-yield-stress ceramic material, as shown in FIG. 2. There was uncured high viscosity ceramic material on the surface, and multiple sets of identical 3D printing green bodies were subjected to parallel cleaning experiments with one set uncleaned and used as a blank group for comparison, and ten of them were randomly given in FIG. 2.

TABLE-US-00002 TABLE 2 Cleaning status of each group ultrasonic cleaning spray cleaning cleaning effects surface of green body cleaning effects surface of green body Example 1 Completely remove Minor damage Completely remove No damage Example 2 Completely remove Minor damage Completely remove No damage Example 3 Completely remove Minor damage Completely remove No damage Control 1 Mild residue Moderate damage Moderate residue Moderate damage Control 2 Completely remove Minor damage Mild residue Minor damage Control 3 A little residue Moderate damage Moderate residue Moderate damage Existing cleaning Large amount of residue Moderate damage solution Example 4 A little residue No damage Example 5 A little residue No damage Example 6 A little residue Minor damage IBOA Large amount of residue Unobserved Tego 688 No difference compared Unobserved to the black group

[0025] A conventional ultrasonic cleaning machine (JP-020S, Skymen Cleaning Equipment Shenzhen Co., Ltd.) was used for ultrasonic cleaning, with a power of 300 W, a frequency of 40 KHz, and a time of 5 minutes. The - in Table 2 indicates that this test was not conducted.

[0026] During the spray cleaning, a 3D printing green body of high-yield-stress ceramic material was placed on a cleaning table, and a gas-liquid mixing spray gun loaded with the cleaning liquid was used for pressurized spraying, with a pressure of 0.5 Mpa and a time of 2 minutes. The - in Table 2 indicates that this test was not conducted.

[0027] Effect judgment refers to the contrast effect. The uncleaned 3D printing green body of high-yield-stress ceramic material was used as contrast groups, microscopic observations were conducted on the cleaned products of each group. According to the degree of residual ceramic materials on the surface, it was divided into large residue, moderate residue, mild residue, slight residue, and complete removal; According to the degree of surface damage, it was divided into severe damage, moderate damage, minor damage, and no damage. The tests showed that there was a significant difference in the degree of cleaning effect between each group. The cleaning effects of the 3D printing products are shown in Table 2 through the further observation with a microscope.

[0028] As shown in FIG. 3, it can be seen from the spray cleaning effects of Example 1 that the cleaning liquid disclosed for the first time in the present invention achieved very good cleaning effects for 3D printing green body of high-yield-stress ceramic material. As shown in FIG. 4, it can be seen from the ultrasonic cleaning effects of Example 1 that the cleaning liquid disclosed for the first time in the present invention achieved good cleaning effects for 3D printing green body of high-yield-stress ceramic material. As shown in FIG. 5, it shows a micrograph of the surface after the spray and ultrasonic cleaning in Example 1. It can be seen that the surface after spray cleaning was not damaged, while the surface after ultrasonic cleaning had slight damage.

[0029] As shown in FIG. 6, the results of the ultrasonic cleaning in Control 3 showed significant damage. It can be seen that the change in formula had a significant impact on the cleaning effect.

[0030] The cleaning principle of the present invention for 3D printing green body of high-yield-stress ceramic material is to use the cleaning liquid mentioned above to destroy the stereoscopic mesh structure formed in the material, allowing the components originally limited in the stereoscopic mesh structure to freely flow out and circulate, thereby achieving the goal of convenient cleaning and good cleaning effect. In particular, the present invention maintains high surface quality while achieving excellent cleaning effect.

[0031] The above are only the preferred Examples of the present invention. It should be pointed out that for ordinary technical personnel in this field, several changes and improvements can be made without departing from the creative idea of the present invention. These changes and improvements should also be considered as the scope of protection of the present invention.