CN106278201B - Barren ceramic powder slurry for directly-formed 3D ceramic printing and preparation method and application thereof - Google Patents
Barren ceramic powder slurry for directly-formed 3D ceramic printing and preparation method and application thereof Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 109
- 239000000843 powder Substances 0.000 title claims abstract description 82
- 239000002002 slurry Substances 0.000 title claims abstract description 60
- 238000007639 printing Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 238000010146 3D printing Methods 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000002270 dispersing agent Substances 0.000 claims abstract description 15
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 7
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000002562 thickening agent Substances 0.000 claims abstract description 7
- 239000013008 thixotropic agent Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 3
- 239000000725 suspension Substances 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 7
- 229920002907 Guar gum Polymers 0.000 claims description 6
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000000665 guar gum Substances 0.000 claims description 6
- 229960002154 guar gum Drugs 0.000 claims description 6
- 235000010417 guar gum Nutrition 0.000 claims description 6
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 6
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229940057838 polyethylene glycol 4000 Drugs 0.000 claims description 2
- 229940093429 polyethylene glycol 6000 Drugs 0.000 claims description 2
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 2
- 235000019830 sodium polyphosphate Nutrition 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- -1 DISPERSANT8400AL-G Chemical compound 0.000 claims 1
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims 1
- WPKYZIPODULRBM-UHFFFAOYSA-N azane;prop-2-enoic acid Chemical compound N.OC(=O)C=C WPKYZIPODULRBM-UHFFFAOYSA-N 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 claims 1
- 239000011230 binding agent Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
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- 238000003756 stirring Methods 0.000 description 2
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- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010017 direct printing Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 239000005060 rubber Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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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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- 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
- B33Y70/00—Materials specially adapted for additive manufacturing
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6026—Computer aided shaping, e.g. rapid prototyping
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Abstract
The invention discloses barren ceramic powder slurry for directly forming 3D ceramic printing, which comprises the following components in percentage by mass: barren ceramic powder, a composite thixotropic agent, a dispersing agent, a thickening agent, a flatting agent and deionized water in a ratio of 65-75: 0.2-0.6: 0.9-1.3: 2.0-5.0: 0.5-1.5: 15-30; the barren ceramic powder is Al2O3、ZrO2、SiC、Si3N4One or a combination thereof. In addition, the preparation method and the application of the barren ceramic powder slurry are also disclosed. The barren ceramic powder slurry has high solid content and high shear performance, is suitable for preparing a 3D printing ceramic device by a direct forming method, can be gradually dried and solidified in the 3D printing process at room temperature, thereby obtaining a given structure without collapse, has high printing precision, and can well meet the requirement of 3D printing direct forming.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to barren ceramic powder slurry for directly forming 3D ceramic printing and a preparation method and application thereof.
Background
The 3D printing technology is a technology for manufacturing a three-dimensional product by adding materials layer by layer through a 3D printing device according to a designed 3D model, and this layer-by-layer stacking forming technology is also called additive manufacturing. 3D printing integrates a plurality of fields such as digital modeling technology, electromechanical control technology, information technology, material science, chemistry and the like, is one of rapid prototyping technologies, and is known as the core technology of the third industrial revolution.
The 3D printing material mainly includes plastic, metal, resin, rubber, ceramic, and the like. Wherein, the ceramic material has the excellent characteristics of high strength, high hardness, high temperature resistance, low density, good chemical stability, corrosion resistance and the like, and can be used in aviationThe method has wide application in the industries of aerospace, automobiles, biology and the like. However, ceramic materials are particularly difficult to machine due to their hard and brittle nature. Unlike metals and plastics, ceramic materials cannot be formed by bonding ceramic powders, especially barren ceramic powders such as Al, during 3D forming2O3、ZrO2、SiC、Si3N4For example, the powder itself is not plastic and must be shaped by a binder. Therefore, the ceramic material for 3D printing, which is currently usually a mixture of ceramic powder and a certain binder, is classified into the following 3D printing methods according to the process:
(1) a layer-by-layer bonding method, namely spraying adhesive powder to a ceramic powder bed to be formed by using a nozzle, and heating and curing the powder to be cured on the layer by using laser sintering; then a layer of powder is paved again, the binder powder is sprayed, the process is repeated, and finally the powder without the binder is removed, so that the three-dimensional object can be obtained.
(2) The direct molding method is to mix ceramic powder and a binder to prepare ceramic slurry, and to directly form a certain shape by extrusion and stacking during 3D printing.
At present, barren ceramic powder is used as 3D printing ceramic aggregate, and in order to enable the barren ceramic powder to have certain plasticity, the prior art generally adds a large amount of photosensitive resin or thermoplastic resin, so that the performance of the powder is similar to that of plastic, and rheological property transformation of the powder needs to be realized through heat or light, so that 3D printing and forming of the ceramic product can be realized.
In the layer-by-layer bonding method, the ratio of the ceramic powder and the binder powder affects the performance of the ceramic component. The binder powder has a large amount, sintering is easy, but the size precision of the part is influenced due to a large shrinkage ratio of the part in the post-treatment process; if the amount of the binder powder is small, the binder powder is not easily sintered and molded. Direct forming methods allow direct printing to obtain more complex shapes, such as closed cell structures, than layer-by-layer bonding methods (for layer-by-layer bonding methods, such shapes are not obtained because the uncured powder in the middle cannot be removed). However, the slurry used in the direct forming method needs to have better shear thinning property, i.e. less viscosity when 3D printing is extruded; after extrusion, the viscosity rapidly increases to be able to keep the sample in a certain shape without collapsing, thereby maintaining the profile of the 3D print. However, the barren ceramic powder itself does not have plasticity, so that a good additive must be required to make the ceramic slurry have good shear thinning performance directly, so that the 3D ceramic printing direct forming can be realized.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the barren ceramic powder slurry for 3D ceramic printing, which has high shear and thin performance and can be directly formed, so that the barren ceramic powder slurry can be directly applied to a 3D printer and can be used for obtaining a ceramic device by a direct forming method. Another object of the present invention is to provide a method for producing the lean ceramic powder slurry for direct molding 3D ceramic printing, and an application thereof.
The purpose of the invention is realized by the following technical scheme:
the invention provides barren ceramic powder slurry for directly forming 3D ceramic printing, which comprises the following components in percentage by mass: barren ceramic powder, a composite thixotropic agent, a dispersing agent, a thickening agent, a flatting agent and deionized water in a ratio of 65-75: 0.2-0.6: 0.9-1.3: 2.0-5.0: 0.5-1.5: 15-30; the barren ceramic powder is Al2O3、ZrO2、SiC、Si3N4One or a combination thereof; the composite thixotropic agent is a compound mixture of guar gum powder and sodium carboxymethylcellulose powder, and the mass ratio of the guar gum to the sodium carboxymethylcellulose is 1-2: 1.
In the above aspect, the average particle diameter of the barren ceramic powder of the present invention is 0.5 to 5 μm.
Further, the dispersing agent is one or a combination of D-305, sodium polyphosphate, ammonium polyacrylate with the viscosity of 300-3000 mPa & s, DISPERSANT8400AL-G, sodium phosphate and sodium dodecyl sulfate. The thickening agent is one or a combination of polyvinyl alcohol, ammonium polyacrylate with the viscosity of 3000-300000 mPa & s, polyethylene glycol 4000, polyethylene glycol 6000 and polyethylene glycol 10000. The leveling agent is MB-26 (Japanese Zhongjing grease).
The other purpose of the invention is realized by the following technical scheme:
the preparation method of the barren ceramic powder slurry for directly forming the 3D ceramic printing, provided by the invention, comprises the following steps of:
(1) uniformly mixing the dispersing agent and deionized water to obtain a dispersing agent solution;
(2) adding the barren ceramic powder into a dispersant solution, and uniformly mixing to obtain a suspension A;
(3) adding the composite thixotropic agent into the suspension A to form a suspension B;
(4) and adding the thickening agent and the flatting agent into the suspension B to obtain the barren ceramic powder slurry for directly forming the 3D ceramic printing, wherein the solid content of the barren ceramic powder slurry is 67-80%.
The invention provides an application of the barren ceramic powder slurry for directly forming 3D ceramic printing, which is used for directly forming a 3D printing ceramic device and comprises the following steps:
(1) filling the barren ceramic powder slurry into a charging barrel of 3D printing equipment, and vacuumizing to remove bubbles in the slurry;
(2) the charging barrel is arranged in the 3D printing equipment and is connected with a needle cylinder for extruding slurry;
(3) connecting the charging barrel with a compressed air device, and controlling the extrusion rate by adjusting the pressure of compressed air;
(4) controlling the extrusion position of the slurry by using a three-dimensional structure model in 3D printing equipment, and obtaining a green body of the ceramic device by arranging and stacking extruded mud strips;
(5) and drying the green body, and calcining to obtain the ceramic device.
Further, the diameter of the needle head of the needle cylinder in the step (2) in the application of the invention is 0.1-1 mm. And (4) adjusting the pressure of the compressed air in the step (3) within the range of 0-1.5 MPa. In the step (5), the drying temperature of the green body is 100-120 ℃, the calcining temperature is 1450-1780 ℃, and whether atmosphere protection is needed or not is determined according to the composition.
The invention has the following beneficial effects:
(1) the barren ceramic powder slurry provided by the invention does not need to be added with light/thermoplastic resin, but directly has better shear thinning performance, so that the post treatment of promoting slurry forming through light/heat is avoided, the shape of the barren ceramic powder slurry can be kept without collapse after the barren ceramic powder slurry is directly extruded, and the barren ceramic powder slurry is suitable for preparing a 3D printing ceramic device by a direct forming method.
(2) The solid content of the barren ceramic powder slurry is not less than 67 percent, the slurry can be gradually dried and solidified in the 3D printing process under the room temperature condition, a given structure can be obtained without special solidification conditions to realize direct molding, and a ceramic device with a complex shape structure can be obtained.
(3) The barren ceramic powder slurry has high shear thinning performance, can pass through a pinhole with the diameter of 0.35mm under the drive of the pressure of 0.2MP, and does not have the situation of fracture. After extrusion, the viscosity of the slurry is increased sharply, the situation of collapse is avoided, the printing precision is high, and the requirement of direct forming can be well met.
(4) The preparation method is simple and feasible, the barren ceramic powder slurry is used for direct forming 3D printing, the contradiction between the printing speed and the printing precision can be coordinately solved by adjusting the pressure of the compressed air and the diameter of the needle head of the needle cylinder, and the control method is simple and reliable.
Drawings
The invention will now be described in further detail with reference to the following examples and the accompanying drawings:
FIG. 1 is a photograph of a ceramic device according to a first embodiment of the present invention.
Detailed Description
The first embodiment is as follows:
1. the embodiment of the invention provides a method for preparing barren ceramic powder slurry for directly forming 3D ceramic printing, which comprises the following steps:
(1) dissolving 1.1g D-305 in 20.6g of deionized water, and uniformly mixing to obtain a dispersant solution;
(2) 65.0gAl2O3Powder (d50 ═ 0.5 μm) was stirred at high speed (4000 rp)m), gradually adding the mixture into a dispersant solution, and uniformly mixing to obtain a suspension A;
(3) adding 0.2g of guar gum powder and 0.2g of sodium carboxymethylcellulose powder (with the viscosity of 300-800 mPa & s) into the suspension A under the condition of high-speed stirring to form a suspension B;
(4) adding 2.4g of polyvinyl alcohol and 0.5g of flatting agent MB-26 into the suspension B, and continuously stirring for 60min to obtain barren ceramic powder slurry for directly forming the 3D ceramic printing, wherein the solid content of the barren ceramic powder slurry is 72.2%.
2. The application of the barren ceramic powder slurry for directly forming the 3D ceramic printing is used for directly forming the 3D printing ceramic device and comprises the following steps:
(1) filling the barren ceramic powder slurry into a charging barrel of 3D printing equipment, and vacuumizing for 30min to remove bubbles in the slurry;
(2) the charging barrel is arranged in 3D printing equipment and is connected with a needle cylinder for extruding slurry, and the diameter of a needle head of the needle cylinder is 0.35 mm;
(3) connecting the charging barrel with a compressed air device, and adjusting the pressure of compressed air to 0.2 MPa;
(4) controlling the extrusion position of the slurry by using a three-dimensional structure model in 3D printing equipment, and obtaining a green body of the ceramic device by arranging and stacking extruded mud strips;
(5) and (3) drying the green body in an oven at 100-120 ℃ for 120min, and calcining at 1550 ℃ for 2h to obtain the ceramic device, wherein the wall thickness of the ceramic device is 0.35mm, and the height of the ceramic device is 0.5cm, as shown in figure 1.
Example two:
1. the embodiment of the invention provides a method for preparing barren ceramic powder slurry for directly forming 3D ceramic printing, which comprises the following steps:
(1) dissolving 1.1g D-305 in 17.0g of deionized water, and uniformly mixing to obtain a dispersant solution;
(2) 73.1g of ZrO2Gradually adding the powder (d50 ═ 0.8 μm) into the dispersant solution under high-speed stirring (4000rpm), and uniformly mixing to obtain suspension A;
(3) adding 0.3g of guar gum powder and 0.2g of sodium carboxymethylcellulose powder (with the viscosity of 300-800 mPa & s) into the suspension A under the condition of high-speed stirring to form a suspension B;
(4) adding 4.2g of polyvinyl alcohol and 0.8g of flatting agent MB-26 into the suspension B, and continuously stirring for 60min to obtain barren ceramic powder slurry for directly forming the 3D ceramic printing, wherein the solid content of the barren ceramic powder slurry is 75.6%.
2. The application of the barren ceramic powder slurry for directly forming the 3D ceramic printing is used for directly forming the 3D printing ceramic device and comprises the following steps:
(1) filling the barren ceramic powder slurry into a charging barrel of 3D printing equipment, and vacuumizing for 30min to remove bubbles in the slurry;
(2) the charging barrel is arranged in 3D printing equipment and is connected with a needle cylinder for extruding slurry, and the diameter of a needle head of the needle cylinder is 0.5 mm;
(3) connecting the charging barrel with a compressed air device, and adjusting the pressure of compressed air to 0.2 MPa;
(4) controlling the extrusion position of the slurry by using a three-dimensional structure model in 3D printing equipment, and obtaining a green body of the ceramic device by arranging and stacking extruded mud strips;
(5) and (3) drying the green body in an oven at 100-120 ℃ for 120min, and calcining at 1500 ℃ for 2h to obtain the ceramic device.
Claims (6)
1. The utility model provides a direct forming 3D pottery is printed with barren ceramic powder thick liquids which characterized in that constitutes according to the mass ratio: barren ceramic powder, a composite thixotropic agent, a dispersing agent, a thickening agent, a flatting agent and deionized water in a ratio of 65-75: 0.2-0.6: 0.9-1.3: 2.0-5.0: 0.5-1.5: 15-30; the barren ceramic powder is Al2O3、ZrO2、SiC、Si3N4One or a combination thereof, the average grain diameter is 0.5-5 μm; the composite thixotropic agent is a compound mixture of guar gum powder and sodium carboxymethylcellulose powder, and the mass ratio of the guar gum to the sodium carboxymethylcellulose is 1-2: 1; the dispersing agent is D-305, sodium polyphosphate and poly with the viscosity of 300-3000 mPa & sOne or the combination of ammonium acrylate, DISPERSANT8400AL-G, sodium phosphate and lauryl sodium sulfate; the thickening agent is one or a combination of polyvinyl alcohol, ammonium polyacrylate with the viscosity of 3000-300000 mPa & s, polyethylene glycol 4000, polyethylene glycol 6000 and polyethylene glycol 10000; the leveling agent is MB-26; the solid content of the slurry is 67-80%, the slurry is loaded into a charging barrel of 3D printing equipment, a green body of the ceramic device is obtained by adjusting the pressure of compressed air and performing extrusion and molding under the room temperature condition, and then the green body is dried and cured under the room temperature condition, and the ceramic device is obtained by calcining.
2. The method for preparing the barren ceramic powder slurry for direct-molding 3D ceramic printing according to claim 1, comprising the steps of:
(1) uniformly mixing the dispersing agent and deionized water to obtain a dispersing agent solution;
(2) adding the barren ceramic powder into a dispersant solution, and uniformly mixing to obtain a suspension A;
(3) adding the composite thixotropic agent into the suspension A to form a suspension B;
(4) and adding the thickening agent and the flatting agent into the suspension B to obtain the barren ceramic powder slurry for directly forming the 3D ceramic printing, wherein the solid content of the barren ceramic powder slurry is 67-80%.
3. The use of the lean ceramic powder slurry for direct structuring 3D ceramic printing according to claim 1 for direct structuring 3D printed ceramic devices, comprising the steps of:
(1) filling the barren ceramic powder slurry into a charging barrel of 3D printing equipment, and vacuumizing to remove bubbles in the slurry;
(2) the charging barrel is arranged in the 3D printing equipment and is connected with a needle cylinder for extruding slurry;
(3) connecting the charging barrel with a compressed air device, and controlling the extrusion rate by adjusting the pressure of compressed air;
(4) controlling the extrusion position of the slurry by using a three-dimensional structure model in 3D printing equipment, and obtaining a green body of the ceramic device by arranging and stacking extruded mud strips;
(5) and drying the green body, and calcining to obtain the ceramic device.
4. The use of the lean ceramic powder slurry for direct structuring 3D ceramic printing according to claim 3, wherein: the diameter of the needle head of the needle cylinder in the step (2) is 0.1-1 mm.
5. The use of the lean ceramic powder slurry for direct structuring 3D ceramic printing according to claim 3, wherein: and (4) adjusting the pressure of the compressed air in the step (3) within the range of 0.2-1.5 MPa.
6. The use of the lean ceramic powder slurry for direct structuring 3D ceramic printing according to claim 3, wherein: the drying temperature of the green body in the step (5) is 100-120 ℃, and the calcining temperature is 1450-1780 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749420.9A CN106278201B (en) | 2016-08-27 | 2016-08-27 | Barren ceramic powder slurry for directly-formed 3D ceramic printing and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749420.9A CN106278201B (en) | 2016-08-27 | 2016-08-27 | Barren ceramic powder slurry for directly-formed 3D ceramic printing and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN106278201A CN106278201A (en) | 2017-01-04 |
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| CN106747360A (en) * | 2017-01-18 | 2017-05-31 | 武汉纺织大学 | A kind of preparation method of 3D printing photocuring ceramic size |
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| CN107098717A (en) * | 2017-04-07 | 2017-08-29 | 武汉理工大学 | A kind of 3 D-printing molding method for preparing of filtering porous ceramics |
| CN109020549A (en) * | 2017-06-08 | 2018-12-18 | 中国科学院上海硅酸盐研究所 | A kind of direct write type 3D printer SiC ink and its preparation method and application |
| CN107382327B (en) * | 2017-09-20 | 2020-02-21 | 苏州中瑞智创三维科技股份有限公司 | Preparation and application of ceramic 3D printing slurry |
| CN108484131B (en) * | 2018-02-02 | 2020-10-16 | 航天特种材料及工艺技术研究所 | Alumina ceramic slurry suitable for 3D printing, preparation method and application |
| CN108726997A (en) * | 2018-06-07 | 2018-11-02 | 山东大学 | A kind of aluminium oxide high solid loading light sensitive ceramics 3D printing creme and preparation method thereof |
| CN109761621B (en) * | 2019-03-18 | 2021-06-18 | 哈尔滨工业大学 | Method for preparing large-size silicon nitride ceramic with complex shape |
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| CN110039783B (en) * | 2019-04-29 | 2021-03-19 | 太原理工大学 | Air filter for 3D biological printer and filtering method |
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| CN112759372B (en) * | 2021-02-25 | 2021-10-15 | 哈尔滨工业大学 | Method for 3D printing of high solid content low temperature co-fired alumina ceramic complex structure |
| CN113045297B (en) * | 2021-04-08 | 2022-03-08 | 昆明理工大学 | 3D direct-writing printing composite ceramic slurry, preparation method and obtained ceramic |
| CN113372114A (en) * | 2021-07-16 | 2021-09-10 | 合肥工业大学 | Preparation method of zirconia ceramic material extrusion type 3D printing material |
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| CN104526838B (en) * | 2014-12-30 | 2017-01-11 | 宁波伏尔肯陶瓷科技有限公司 | Method for 3D ceramic printing forming |
| CN104997643B (en) * | 2015-07-19 | 2019-03-08 | 谢宝军 | A kind of quick molding method for the production of full porcelain mouth mending material |
| CN105196398B (en) * | 2015-09-16 | 2017-12-01 | 华南理工大学 | For the ceramic slurry of air pressure extruded type 3 D-printing and the preparation method of bioceramic scaffold |
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Application publication date: 20170104 Assignee: Jingdezhen Yimei ceramic culture development Co.,Ltd. Assignor: JINGDEZHEN CERAMIC INSTITUTE Contract record no.: X2023980053539 Denomination of invention: A barren ceramic powder slurry for direct molding 3D ceramic printing and its preparation method and application Granted publication date: 20200410 License type: Common License Record date: 20231221 |