Blade wax spraying printing supporting wax material and preparation method thereof

Abstract

The invention relates to the field of wax spraying printing investment casting wax mold materials, in particular to a blade wax spraying printing supporting wax material and a preparation method thereof. The invention relates to a supporting wax material for wax spraying printing of a blade. The supporting wax material is prepared from the following components in parts by mass: 60-80 parts of high-carbon-number fatty alcohol as a matrix material; 5 to 30 parts of toughening resin; 0.1 to 1 part of a nucleating agent; 1 to 2 parts of a surfactant; 0.1 to 1 part of an antioxidant; and 0 to 0.05 part of toner. According to the supporting wax material, the high-carbon-number fatty alcohol is used as a matrix, the nucleating agent is introduced, and the synergistic effect of all the components is optimized, so that the contradiction among the mechanical strength, the printing precision and the dissolution rate is solved, and excellent comprehensive performance is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wax jetting printing investment casting wax pattern material, in particular to a kind of blade wax jetting printing support wax material and preparation method thereof. BACKGROUND

[0002] 3D printing, also known as additive manufacturing, is a rapid prototyping technology. Among them, the wax jetting printing technology has been widely used in the fields of jewelry, precision casting (especially complex components such as aircraft engine blades) and other fields due to its high precision and excellent surface finish. This technology usually uses two different types of wax: one is a main wax pattern material used to build the main body of the part, and the other is a support wax material used to support the suspended structure or complex internal cavity. After printing, the support wax material needs to be removed to obtain the final wax pattern.

[0003] An ideal support wax material should have the following characteristics: 1) sufficient mechanical strength and hardness to provide stable support for the suspended main wax pattern during and after printing, preventing it from collapsing or deforming; 2) excellent dimensional stability, low shrinkage during printing and cooling, and no warping to ensure high precision of the final wax pattern; 3) easy to remove, usually by dissolving in a specific solvent, and the dissolving speed should be fast, without residue, to avoid damaging the delicate main wax pattern structure.

[0004] The support wax material in the prior art is mostly based on paraffin wax, microcrystalline wax or polyethylene glycol wax as the main matrix. However, these materials generally have a difficult technical contradiction to reconcile: in order to improve mechanical strength and printing precision, a wax with a higher melting point and higher crystallinity is usually selected, but this often leads to slow dissolving speed in solvent and difficult removal; on the contrary, if a low-melting-point, low-molecular-weight wax is selected to pursue fast dissolving, the support strength and dimensional stability will be sacrificed, which can easily lead to printing failure or wax pattern precision decline.

[0005] In addition, when traditional wax-based materials are rapidly cooled and solidified from a molten state, their crystallization process is not easy to control, and coarse grains and uneven crystal structures are easily formed, which can cause internal stress and lead to defects such as warping and cracking of the printed part, seriously affecting the forming precision and yield of complex and precise components such as turbine blades.

[0006] Therefore, it is a technical problem to be solved in the field to develop a new type of blade wax jetting printing support wax material that can simultaneously meet the requirements of high strength, high printing precision and fast dissolving. SUMMARY

[0007] In view of the problems in the prior art that the poor toughness of the blade wax printing support wax easily leads to deformation of the wax mold, slow dissolution requires long time soaking and causes wax micro-dissolution cracking, the present application provides a blade wax printing support wax material, which uses high-carbon fatty alcohol as a base, introduces a nucleating agent, and optimizes the synergistic effect of each component to solve the contradiction between mechanical strength, printing precision and dissolution rate, and achieve excellent comprehensive performance.

[0008] The technical solution adopted by the present application to solve its technical problems is:

[0009] A blade wax printing support wax material, which is composed of the following components in mass fraction:

[0010] High-carbon fatty alcohol as a base material: 60-80 parts;

[0011] Toughening resin: 5-30 parts;

[0012] Nucleating agent: 0.1-1 parts;

[0013] Surfactant: 1-2 parts;

[0014] Antioxidant: 0.1-1 parts; and

[0015] Color powder: 0-0.05 parts;

[0016] The nucleating agent is one or more of calcium stearate, sodium benzoate, dibenzyl sorbitol, calcium cyclohexane-1,2-dicarboxylate, and sodium succinate.

[0017] As a preferred, the high-carbon fatty alcohol is a mixture of at least four fatty alcohols selected from dodecanol, tetradecanol, hexadecanol, octadecanol and eicosanol.

[0018] As a preferred, the toughening resin is at least one of hydrogenated petroleum resin, water-based propionic acid resin, rosin resin, and terpene resin.

[0019] As a preferred, the antioxidant is at least one of butylated hydroxytoluene, 2,6-di-tert-butyl-p-cresol, dilauryl thiodipropionate, and tris(2,4-di-tert-butylphenyl) phosphite.

[0020] As a preferred, the surfactant is at least one of glycerol monostearate, nonylphenol polyoxyethylene ether, and isodecyl alcohol phosphate; and the color powder is at least one of oily red color powder, oily green color powder, and oily purple color powder.

[0021] As a preferred, the blade wax printing support wax material is composed of the following components in mass fraction: high-carbon fatty alcohol 70-80 parts,

[0022] Toughening resin: 15-25 parts;

[0023] Nucleating agent: 0.3-0.8 parts;

[0024] Surfactant: 1.2-1.8 parts;

[0025] Antioxidant: 0.3-0.8 parts; and

[0026] Color powder: 0-0.05 parts.

[0027] As preferred, the high-carbon-number fatty alcohol is a mixture of 3-4 parts of dodecanol, 12-15 parts of tetradecanol, 20-30 parts of hexadecanol, 20-27 parts of octadecanol and 0-12 parts of eicosanol; in the mixture, the total content of fatty alcohols with carbon atom number of 12-14 is 15-20 parts by weight, and the total content of fatty alcohols with carbon atom number of 16-20 is 45-80 parts by weight.

[0028] More preferably, the weight ratio of the total content of fatty alcohols with carbon atom number of 12-14 to the total content of fatty alcohols with carbon atom number of 16-20 is 1:3 to 1:4. The inventors have found in experiments that when the weight ratio of low-carbon alcohols to high-carbon alcohols is about 1:3, the size of the printing droplets is appropriate, the hardness is appropriate, and the dissolution speed is moderate.

[0029] A preparation method of the blade-wax-printing support wax material, comprising the following steps:

[0030] S1, preparing materials according to the formula;

[0031] S2, adding the high-carbon-number fatty alcohol into a reaction container and heating it to complete melting at 90-110°C;

[0032] S3, adding the toughening resin and the surfactant into the melt of step S2 and stirring it to complete melting at 90-110°C;

[0033] S4, adding the antioxidant, the nucleating agent and the color powder into the melt of step S3, and stirring by mechanical blending for 45-60 min at a stirring rate of 800-1500 rpm;

[0034] S5, sequentially filtering the liquid mixture obtained in step S4 through filter screens with a mesh size of 20 μm, 15 μm and 10 μm to obtain the blade-wax-printing support wax material.

[0035] This invention aims to directly address the warping and deformation of wax molds caused by support wax, as well as cracking and deformation defects caused by prolonged removal, thereby improving production efficiency and reducing losses and costs. By adding a nucleating agent and compounding with a high-carbon fatty alcohol, the support wax material for blade spray wax printing combines high strength with excellent toughness, making printed wax molds less susceptible to warping and deformation and achieving high dimensional accuracy. Furthermore, its rapid dissolution significantly shortens the wax washing process and effectively prevents the micro-dissolution, cracking, and deformation of the mold wax caused by prolonged immersion and stirring.

[0036] The preparation method of the present invention can ensure highly uniform dispersion of the components of the support wax by optimizing the melt blending process, effectively eliminate the risk of nozzle clogging during the printing process, and maintain the optimal performance state of the wax liquid system.

[0037] Compared with the prior art, the present invention has the following outstanding beneficial effects:

[0038] 1. This invention utilizes a high content (60-80 parts) of high-carbon fatty alcohols as the matrix material, rather than traditional waxes. High-carbon fatty alcohols inherently possess both good hardness and excellent solubility in specific organic solvents, resolving the conflict between strength and dissolution rate. By compounding fatty alcohols of varying chain lengths, the material's macroscopic properties can be precisely controlled, achieving an optimal balance between strength and solubility.

[0039] 2. This invention innovatively incorporates a nucleating agent into the formulation. As the material cools from its molten state, the nucleating agent provides a large number of crystallization nuclei, inducing rapid and uniform crystallization, resulting in a fine, dense grain structure. This significantly reduces the internal stress generated by uneven crystallization, effectively suppressing warping and deformation of the printed part and significantly improving the dimensional accuracy and stability of the final wax model.

[0040] 3. The addition of a toughening resin effectively mitigates the brittle nature of the fatty alcohol matrix, enhancing the support structure's impact resistance during printing and handling. The addition of a surfactant improves the interfacial compatibility between the material and the master wax pattern and facilitates solvent penetration during dissolution, further accelerating the dissolution rate. The antioxidant ensures the stability of the material during heating and melting. These components work synergistically, resulting in a final product with the excellent combined properties of high precision, high strength, high toughness, and rapid dissolution. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a flow chart of the method for preparing the support wax material for wax spray printing of blades according to the present invention. DETAILED DESCRIPTION

[0042] The technical solutions of the present application are further described below with specific examples. It should be understood that the implementation of the present application is not limited to the following examples, and any form of modification and / or change made to the present application will fall within the scope of the present application.

[0043] In the present application, all parts, percentages are weight units, and the equipment and raw materials used are commercially available or commonly used in the art. The methods in the following examples are conventional methods in the art, unless otherwise specified.

[0044] The reagents used in the following examples can be purchased from conventional biochemical reagent stores, unless otherwise specified.

[0045] In some embodiments, the nucleating agent is at least one of calcium stearate, sodium benzoate, dibenzyl sorbitol, calcium cyclohexane-1,2-dicarboxylate, and sodium succinate. The addition of the nucleating agent can make the support wax liquid crystallize quickly after being sprayed, which is conducive to maintaining the shape stability of the wax mold, has higher precision, inhibits deformation, and at the same time, gives the support wax better mechanical properties.

[0046] In some embodiments, the high-carbon-number fatty alcohol is at least four of dodecanol, tetradecanol, hexadecanol, octadecanol, and eicosanol. As the base material of the support wax, the length of the carbon chain of the high-carbon-number fatty alcohol directly affects the material properties. The longer the carbon chain, the higher the hardness and the greater the strength, but the slower the dissolution rate. The shorter the carbon chain, the better the softness and the better the toughness, and the faster the dissolution rate. More preferably, the weight ratio of the total content of the fatty alcohol with a carbon atom number of 12-14 to the total content of the fatty alcohol with a carbon atom number of 16-20 is 1:3 to 1:4. Therefore, it is necessary to accurately select the types of high-carbon-number fatty alcohols with different chain lengths and optimize the ratio in order to give the support wax the best mechanical properties and rapid dissolution characteristics.

[0047] In some embodiments, the toughening resin is at least one of hydrogenated petroleum resin, water-based propionic acid resin, rosin resin, and terpene resin. The addition of the toughening resin can significantly improve the melt viscosity and material toughness of the support wax. When it cooperates with the high-carbon-number fatty alcohol, it not only optimizes the printing rheological properties of the wax material, but also enhances the mechanical strength after forming, effectively inhibiting the warping and deformation of the wax mold during printing. At the same time, the moderately improved viscosity helps to reduce the risk of cracking of the wax mold, further improving the forming reliability.

[0048] In some embodiments, the antioxidant is at least one of butylated hydroxytoluene, 2,6-di-tert-butyl-p-cresol, dilauryl thiodipropionate, and tris(2,4-di-tert-butylphenyl) phosphite. The addition of the antioxidant can effectively inhibit the oxidation and deterioration of the support wax liquid, significantly prolonging its effective service life. This is crucial for a wax liquid system that needs to maintain stability for a long time, and can ensure the process stability during continuous printing.

[0049] In some embodiments, the surface active agent is at least one of glycerol monostearate, nonylphenol polyoxyethylene ether, isodecyl alcohol phosphate. The addition of the surface active agent can significantly reduce the surface tension of the system, promote the uniformity of melt mixing, effectively inhibit the analysis of the group from the precipitation, thereby greatly improving the stability of the wax liquid.

[0050] In some embodiments, the toner is at least one of oily red toner, oily green toner, and oily purple toner. After adding the pigment, the appearance of the printing wax material can be more clearly observed, and the type wax and the support wax can be more easily distinguished.

[0051] Performance test method:

[0052] 1. Print and warping deformation evaluation: A 3D System company's ProJet MJP 2500W type 3D printer is used to print a cuboid standard sample with a size of 50mm x 10mm x 2mm under the conditions of a print head temperature of 95℃ and a build chamber temperature of 22℃. After printing is completed, the sample is removed from the printing platform, and after standing at room temperature for 2 hours, the warping deformation is evaluated by visually observing and using a vernier caliper to measure the maximum off-plate height of the four corners. "No warping" means that the maximum off-plate height is less than 0.1mm; "slight warping" means 0.1mm-0.5mm; and "severe warping" means greater than 0.5mm.

[0053] 2. Viscosity test: A digital rotary viscometer is used, the viscometer is inserted into the wax liquid at 85℃, the wax liquid is placed in a beaker, and the beaker is placed in a constant temperature water bath.

[0054] 3. Print precision evaluation: The sample is printed using the above method, and after cooling, the actual size is measured using a Hangzhou Xianlin Three-dimensional Technology Co., Ltd. OptimScan 5M Plus type three-dimensional scanner, compared with the theoretical model size, and the print precision is evaluated. "High" means that the maximum error in size is less than ±0.01mm; "general" means that the maximum error is between ±0.01mm and ±0.05mm; and "poor" means that the maximum error is greater than ±0.05mm.

[0055] 4. Dissolution time test: The above printed standard sample is completely immersed in 500mL of 95% pure ethanol solvent with a constant temperature of 40℃, and is subjected to magnetic stirring at a rate of 60rpm. The time required from complete immersion of the sample to visual observation of no solid residue is recorded as the dissolution time.

[0056] A preparation method of the blade jet wax printing support wax material, a process flow chart is as shown in Figure 1 The method comprises the following steps:

[0057] S1, preparing materials according to the formula;

[0058] S2, adding the high-carbon fatty alcohol to the reaction container and heating to completely melt at 90-110°C;

[0059] S3, adding the toughening resin and surfactant to the melt of step S2 and stirring to completely melt at 90-110°C;

[0060] S4, adding the antioxidant, the nucleating agent, and the color powder to the melt of step S3, and stirring by mechanical blending for 45-60 min at a stirring rate of 800-1500 rpm;

[0061] S5, filtering the liquid mixture obtained in step S4 through 20 μm, 15 μm, and 10 μm filter screens in sequence to obtain the blade wax jet printing support wax material.

[0062] According to the blade wax jet printing support wax material and the preparation method thereof described above, the following specific examples are listed for illustration:

[0063] Example 1

[0064] Step 1: respectively weighing 39 g of dodecanol, 150 g of tetradecanol, 300 g of hexadecanol, 200 g of octadecanol, 67 g of eicosanol, 200 g of hydrogenated petroleum resin, 5 g of butylated hydroxytoluene, 5 g of calcium stearate, 15.5 g of glycerol monostearate, and 0.5 g of oil red color powder.

[0065] Step 2: placing the high-carbon fatty alcohol into a reaction container and setting the reaction temperature at 100°C, and waiting for the high-carbon fatty alcohol to completely melt;

[0066] Step 3: adding the hydrogenated petroleum resin and the glycerol monostearate into the reaction container, setting the reaction temperature at 100°C, and waiting for them to completely melt;

[0067] Step 4: adding the butylated hydroxytoluene, the calcium stearate, and the oil red color powder into the reaction container, setting the reaction temperature at 100°C, then starting the stirring device and setting the stirring speed at 1200 rpm, and stirring for 60 min;

[0068] Step 5: filtering the blended solution through 20 μm, 15 μm, and 10 μm filter screens in sequence to obtain the blade wax jet printing support wax liquid;

[0069] Step 6: using the support wax liquid described above to print a standard test sample, and placing the printed sample for 2 h;

[0070] Step 7: Place the printed standard sample in 500 ml of 95% ethanol solvent, heat to 40°C, and use a rotor to stir at a speed of 60 rpm, and record the time for the support wax to be completely removed.

[0071] Example 2

[0072] Step 1 : Respectively take 35 g of dodecanol, 120 g of tetradecanol, 300 g of hexadecanol, 200 g of octadecanol, 120 g of eicosanol, 200 g of hydrogenated petroleum resin, 5 g of butyl hydroxytoluene, 5 g of calcium stearate, 14.5 g of glycerol monostearate, and 0.5 g of oil red color powder.

[0073] Step 2: Put the high-carbon fatty alcohol into the reaction container, and set the reaction temperature to 100°C, and wait for the high-carbon fatty alcohol to completely melt;

[0074] Step 3: Add the hydrogenated petroleum resin and glycerol monostearate to the reaction container, and set the reaction temperature to 100°C, and wait for it to completely melt;

[0075] Step 4: Add butyl hydroxytoluene, calcium stearate, and oil red color powder to the reaction container, and set the reaction temperature to 100°C, then start the stirring device, set the speed to 1200 rpm, and stir for 60 min;

[0076] Step 5: The blended solution is successively filtered through 20 μm, 15 μm, and 10 μm filter screens to obtain the blade wax printing support wax liquid;

[0077] Step 6: Use the above support wax liquid to print a standard sample for testing, and place it for 2 h after printing;

[0078] Step 7: Place the printed standard sample in 500 ml of 95% ethanol solvent, heat to 40°C, and use a rotor to stir at a speed of 60 rpm, and record the time for the support wax to be completely removed.

[0079] Example 3

[0080] Step 1 : Respectively take 39 g of dodecanol, 150 g of tetradecanol, 300 g of hexadecanol, 200 g of octadecanol, 67 g of eicosanol, 200 g of terpene resin, 5 g of tris(2,4-di-tert-butylphenyl) phosphite, 5 g of sodium succinate, 15.5 g of isodecyl alcohol phosphate, and 0.5 g of oil purple color powder.

[0081] Step 2: Put the high-carbon fatty alcohol into the reaction container, and set the reaction temperature to 100°C, and wait for the high-carbon fatty alcohol to completely melt;

[0082] Step 3: Add the terpene resin and isodecyl alcohol phosphate into the reaction container, set the reaction temperature at 100°C, and wait for it to completely melt;

[0083] Step 4: Add tris(2,4-di-tert-butylphenyl) phosphite, sodium succinate, and oil purple color powder into the reaction container, set the reaction temperature at 100°C, then start the stirring device with a speed of 1200 rpm, and stir for 60 min;

[0084] Step 5: Filter the blended solution through 20 μm, 15 μm, and 10 μm filter screens in sequence, and the blade wax printing support wax solution is obtained;

[0085] Step 6: Use the above support wax solution to print a standard sample, and place it for 2 h after printing;

[0086] Step 7: Place the printed standard sample in 500 ml of 95% ethanol solvent, heat it to 40°C, and use a rotor to stir at a speed of 60 rpm, and record the time for complete removal of the support wax.

[0087] Example 4

[0088] Step 1: Respectively weigh 39 g of dodecanol, 150 g of tetradecanol, 300 g of hexadecanol, 267 g of octadecanol, 200 g of rosin resin, 5 g of dilauryl thiodipropionate, 5 g of sodium benzoate, 15.5 g of glycerol monostearate, and 0.05 g of oil green color powder.

[0089] Step 2: Put the high-carbon fatty alcohol into the reaction container, and set the reaction temperature at 100°C, and wait for the high-carbon fatty alcohol to completely melt;

[0090] Step 3: Add the rosin resin and glycerol monostearate into the reaction container, set the reaction temperature at 100°C, and wait for it to completely melt;

[0091] Step 4: Add dilauryl thiodipropionate, sodium benzoate, and oil green color powder into the reaction container, set the reaction temperature at 100°C, then start the stirring device with a speed of 1200 rpm, and stir for 60 min;

[0092] Step 5: Filter the blended solution through 20 μm, 15 μm, and 10 μm filter screens in sequence, and the blade wax printing support wax solution is obtained;

[0093] Step 6: Use the above support wax solution to print a standard sample, and place it for 2 h after printing;

[0094] Step 7: Place the printed standard sample in 500 ml of 95% ethanol solvent, heat to 40°C, and use a rotor to stir at a speed of 60 rpm, and record the time for the support wax to be completely removed.

[0095] Example 5

[0096] Step 1: Respectively weigh 189 g of tetradecanol, 567 g of hexadecanol, 200 g of hydrogenated petroleum resin, 5 g of butyl hydroxytoluene, 5 g of calcium cyclohexane-1,2-dicarboxylate, 15.5 g of glycerol monostearate, and 0.5 g of oily red color powder.

[0097] Step 2: Put the high-carbon fatty alcohol into the reaction container, and set the reaction temperature to 100°C, and wait for the high-carbon fatty alcohol to completely melt;

[0098] Step 3: Add the hydrogenated petroleum resin and glycerol monostearate to the reaction container, and set the reaction temperature to 100°C, and wait for it to completely melt;

[0099] Step 4: Add calcium cyclohexane-1,2-dicarboxylate, butyl hydroxytoluene, and oily red color powder to the reaction container, and set the reaction temperature to 100°C, then start the stirring device, set the speed to 1200 rpm, and stir for 60 min;

[0100] Step 5: The blended solution is successively filtered through 20 μm, 15 μm, and 10 μm filter screens, and the blade wax printing support wax solution is obtained;

[0101] Step 6: Use the above support wax solution to print a standard sample for testing, and place it for 2 h after printing;

[0102] Step 7: Place the printed standard sample in 500 ml of 95% ethanol solvent, heat to 40°C, and use a rotor to stir at a speed of 60 rpm, and record the time for the support wax to be completely removed.

[0103] Comparative Example 1

[0104] The difference between Comparative Example 1 and Example 1 is that in Example 1, all the high-carbon fatty alcohols are replaced with dodecanol.

[0105] Comparative Example 2

[0106] The difference between Comparative Example 2 and Example 1 is that in Example 1, all the high-carbon fatty alcohols are replaced with hexadecanol.

[0107] Comparative Example 3

[0108] The difference between Comparative Example 3 and Example 1 is that in Example 1, all the high-carbon fatty alcohols are replaced with eicosanol.

[0109] Comparative Example 4

[0110] Comparative Example 4 differs from Example 1 in that in Example 1, the toughening resin is completely removed.

[0111] Comparative Example 5

[0112] Comparative Example 5 differs from Example 1 in that in Example 1, the nucleating agent is completely removed.

[0113] The support wax materials obtained in each of Examples 1-5 and Comparative Examples 1-5 above were subjected to performance testing, and the results are shown in Table 1.

[0114] Table 1: Performance comparison of examples and comparative examples

[0115]

[0116] The experimental data in Table 1 show that the blade wax spraying printing support wax material developed in the present application can improve the quality of wax mold printing of blades, thanks to its fast solubility, high printing precision, and excellent anti-warping and cracking properties.

[0117] By comparing Example 1 with Example 2, it can be seen that the main difference between the two is the ratio of the total amount of fatty alcohols with carbon atom number 12-14 to the total amount of fatty alcohols with carbon atom number 16-20, wherein the ratio of Example 1 is 1:3, and the ratio of Example 2 is 1:4. Both of them show excellent printing performance, and the difference between them is that increasing the proportion of C16-20 fatty alcohols will result in an increase in viscosity, a prolongation of dissolution time, and a decrease in needle penetration. Therefore, the appropriate ratio can be selected according to actual needs. By comparing Example 1 with Example 3, it can be seen that after replacing the types of other components except high-carbon-number fatty alcohols, the printing effect is basically not affected, but the viscosity and needle penetration will change slightly. By comparing Example 1 with Example 4, it can be seen that when the types of high-carbon-number fatty alcohols are changed from 5 to 4, the needle penetration decreases slightly, and the printing effect remains unchanged. By comparing Example 1 with Example 5, it can be seen that when the types of high-carbon-number fatty alcohols are changed from 5 to 2, the printing effect remains unchanged, but the needle penetration increases significantly and the dissolution time is prolonged, which does not meet the use requirements. This is because the interactions between multiple types of high-carbon-number fatty alcohols are weak and can enhance each other, and the use of multiple types of high-carbon-number fatty alcohols can obtain lower needle penetration and faster dissolution rate.

[0118] It can be seen from the comparison of Example 1 and Comparative Examples 1-3 that the excessive addition of C16-20 fatty alcohol can improve the mechanical properties and reduce the penetration, but leads to the decrease of the dissolution rate, the excessive addition of C12-14 fatty alcohol can accelerate the dissolution, but easily causes the printing collapse and poor printing precision with the maximum error of 1.112 mm, and the single use of hexadecanol has insufficient comprehensive performance with high penetration and slow dissolution rate; the use of multiple high-carbon fatty alcohols realizes the synergistic optimization of the mechanical strength and the dissolution rate; the comparison of Example 1 and Comparative Example 4 proves that the introduction of the toughening resin can effectively inhibit the printing warping deformation and the cracking risk during the removal of the support wax by precisely controlling the viscosity and enhancing the toughness; the comparison of Example 1 and Comparative Example 5 can observe that the nucleating agent can significantly promote the crystallization and solidification of the wax material, prevent the structure from collapsing and improve the dimensional accuracy.

[0119] In summary, the blade wax spraying printing support wax material prepared by the present application has strength and toughness, effectively prevents the wax mold from warping and deforming during printing and post-processing; at the same time, has the characteristics of fast dissolution, significantly shortens the wax washing time, maximally reduces the risk of slight dissolution, cracking and deformation of the wax caused by long-time soaking and stirring, thereby greatly improves the wax mold precision and the yield of finished products, and reduces the production cost.

Claims

1. A blade wax spray printing support wax material, characterized in that: It is composed of the following components in parts by mass: High carbon number fatty alcohol as matrix material: 60-80 parts; Toughening resin: 5-30 parts; Nucleating agent: 0.1-1 part; Surfactant: 1-2 parts; Antioxidant: 0.1-1 part; and Color powder: 0-0.05 parts; The nucleating agent is one or more of calcium stearate, sodium benzoate, dibenzylidene sorbitol, calcium cyclohexane-1,2-dicarboxylate, and sodium succinate.

2. The blade wax spray printing support wax material according to claim 1, characterized in that: The high carbon number fatty alcohol is a mixture of at least four fatty alcohols selected from lauryl alcohol, tetradecanol, hexadecanol, stearyl alcohol and eicosanol.

3. The blade wax spray printing support wax material according to claim 1, characterized in that: The toughening resin is at least one of hydrogenated petroleum resin, water-based propionic acid resin, rosin resin, and terpene resin.

4. The blade wax spray printing support wax material according to claim 1, characterized in that: The antioxidant is at least one of butylated hydroxytoluene, 2,6-di-tert-butyl-p-cresol, dilauryl thiodipropionate, and tris(2,4-di-tert-butylphenyl)phosphite.

5. The blade wax spray printing support wax material according to claim 1, characterized in that: The surfactant is at least one of glycerol monostearate, nonylphenol polyoxyethylene ether, and isodecyl alcohol phosphate; The toner used is at least one of oily red toner, oily green toner and oily purple toner.

6. The blade wax spray printing support wax material according to claim 1, characterized in that: The blade wax spray printing support wax material is composed of the following components in parts by mass: 70-80 parts of high carbon number fatty alcohol, Toughening resin: 15-25 parts; Nucleating agent: 0.3-0.8 parts; Surfactant: 1.2-1.8 parts; Antioxidant: 0.3-0.8 parts; and Color powder: 0 to 0.05 parts.

7. The blade wax spray printing support wax material according to claim 1, characterized in that: The high-carbon fatty alcohol is a mixture of 3-4 parts of dodecanol, 12-15 parts of tetradecanol, 20-30 parts of hexadecanol, 20-27 parts of octadecanol and 0-12 parts of eicosanol; in the mixture, the total content of fatty alcohols with 12-14 carbon atoms is 15-20 parts by weight, and the total content of fatty alcohols with 16-20 carbon atoms is 45-80 parts by weight.

8. The blade wax spray printing support wax material according to claim 7, characterized in that: The weight ratio of the total content of fatty alcohols having 12 to 14 carbon atoms to the total content of fatty alcohols having 16 to 20 carbon atoms is 1:3 to 1:

4.

9. A method for preparing a blade wax spray printing support wax material according to any one of claims 1 to 8, characterized in that The method comprises the following steps: S1. Prepare materials according to the recipe; S2, adding the high carbon number fatty alcohol into the reaction vessel, heating at 90-110° C. to completely melt it; S3, adding toughening resin and surfactant to the melt of step S2, and stirring at 90-110° C. to completely melt; S4, adding an antioxidant, the nucleating agent and the toner to the melt of step S3, and stirring the mixture mechanically for 45 to 60 minutes at a stirring rate of 800 to 1500 rpm; S5. The liquid mixture obtained in step S4 is filtered through 20 μm, 15 μm and 10 μm filter screens in sequence to obtain the blade wax spray printing support wax material.

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