WO2020200424A1 - Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d - Google Patents

Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d Download PDF

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Publication number
WO2020200424A1
WO2020200424A1 PCT/EP2019/058256 EP2019058256W WO2020200424A1 WO 2020200424 A1 WO2020200424 A1 WO 2020200424A1 EP 2019058256 W EP2019058256 W EP 2019058256W WO 2020200424 A1 WO2020200424 A1 WO 2020200424A1
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WO
WIPO (PCT)
Prior art keywords
filament
weight
plasticizer
mixture
filament according
Prior art date
Application number
PCT/EP2019/058256
Other languages
English (en)
Inventor
Peter Daute
Manfred Jaeckel
Martin Schaefer
Juergen Waldmann
Original Assignee
Emery Oleochemicals Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Emery Oleochemicals Gmbh filed Critical Emery Oleochemicals Gmbh
Priority to PCT/EP2019/058256 priority Critical patent/WO2020200424A1/fr
Publication of WO2020200424A1 publication Critical patent/WO2020200424A1/fr

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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
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • 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
    • 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • 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
    • 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
    • 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
    • B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
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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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B2235/6021—Extrusion moulding
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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

Definitions

  • the present invention relates to a filament suitable to be used in a 3D printing device, wherein the filament comprises a ceramic powder, a thermoplastic binder and processing additive(s).
  • the invention also relates to a process for producing a shaped body comprising the step of printing a shaped green body using the filament according to the invention.
  • a filament according to the invention in a 3D printing device.
  • the invention also relates to the use of a binder of the invention for the production of a filament for 3D printing devices.
  • MIM metal injection molding
  • CIM ceramic injection molding
  • the molding step involves the use of injection molding machines and results in the formation of a so-called green body.
  • This green body undergoes a further step in which the binder is typically at least partially removed before the body is heated to temperatures where the metal or ceramic components are sintered.
  • a feedstock is required also for more modem processes for forming prototypes such as 3D printers.
  • the feedstock for 3D printing devices has been found to require different properties as will be explained below.
  • FDM fused deposition modelling
  • FFF fused filament fabrication
  • FDM Fused deposition modelling
  • thermoplastic filament itself has a significant effect on the variability in an FDM extruder’s flow. In other words, depending on its material the feedstock filament contributes to volumetric flow errors.
  • the diameter of the filament used can be minimized and a filament can be manufactured with tighter diameter tolerances to reduce volumetric flow errors.
  • WO 2016/004985 discloses sinterable feedstock for use in 3D printing devices.
  • the stickiness is at least one property by which a feedstock suitable for 3D printing devices differs from a feedstock that is commonly used in powder injection molding (PIM) or powder extrusion molding (PEM) processes.
  • a feedstock suitable for 3D printing requires good bonding ability of the individual mass strands between each other in order to produce a 3D structure with high resolution and good reproducibility.
  • This property of the feedstock is however not beneficial with powder injection molding (PIM) or powder extrusion molding (PEM), in particular if these applications involve a smoothing calendar, a slit die or similar means.
  • PIM or PEM applications such stickiness is rather undesirable, and is generally avoided by preparing a specific feedstock that does not have this property, for example by including anti-adhesion additives.
  • the present invention provides a filament suitable to be used in a 3D printing device, wherein the filament comprises or consists of (a) a ceramic powder;
  • thermoplastic binder comprising a thermoplastic polymer and at least one plasticizer
  • a further aspect of the invention relates to a process for producing a shaped body, the process comprising the following steps:
  • step (iii) sintering the shaped green body obtained from step (ii) to obtain said shaped body.
  • a filament according to the invention in a 3D printing device.
  • the invention also relates to a green body producible by mixing a ceramic powder according to the invention and a thermoplastic binder according to the invention.
  • binder as defined in the invention for the production of a filament for 3D printing devices.
  • alkyl refers to a saturated straight or branched carbon chain.
  • an alkyl as used herein is a C1-C36 alkyl and more preferably is a C1-C10 alkyl, i.e. having 1, 2,
  • alkyl groups are optionally substituted.
  • the term“alcohol” refers to a compound having one or more hydroxyl groups.
  • a Cg-C36 alkyl alcohol is a Cg-C36 alkyl substituted with one or more hydroxyl groups.
  • a fatty alcohol as used herein refers to a linear aliphatic primary alcohol.
  • the present invention provides novel filaments suitable to be used in a 3D printing device such as a fused deposition modelling device. It was unexpectedly found that the filaments exhibit an ideal combination of viscosity and hardness properties as well as sufficient adhesion when printed.
  • the invention provides a filament suitable to be used in a 3D printing device, wherein the filament comprises or consists of
  • thermoplastic binder comprising a thermoplastic polymer and at least one plasticizer
  • the components present in the filament add up to 100% by weight, i.e. the sum of all components of the filament is 100% by weight.
  • the ceramic powder is preferably sinterable. This means that the ceramic powder comprised in the printed shape will form a coherent mass upon heating without undergoing melting.
  • the ceramic powder is selected from the group consisting of porcelain, aluminium oxide, silicon dioxide, silicon carbide, silicon nitride, calcium phosphates, boron nitride, boron carbide, aluminium titanate, zirconium dioxide, amorphous ceramic compounds like glass and glass ceramics, and a mixture thereof, preferably porcelain, aluminium oxide zirconium dioxide and a mixture thereof
  • At least 90% of the particles of the ceramic powder have a diameter of 20 pm or less, preferably 10 pm or less (measured by laser diffraction).
  • the porcelain comprises 20 to 70 % by weight kaolin, 8 to 50 % by weight quartz and 20 to 35 % by weight feldspar.
  • the ceramic powder is present in the filament in an amount of 40 to 90 % by volume, preferably 50 to 80 % by volume (based on the total volume of the filament).
  • the ceramic powder is present in the filament in an amount of 60 to 85 % by weight, preferably 65 to 85 % by weight, preferably 70 to 85 % by weight (based on the total weight of the filament).
  • thermoplastic binder is present in the filament in an amount of 60 to 20 % by volume, preferably 30 to 50 % by volume(based on the total volume of the filament).
  • thermoplastic binder is present in the filament in an amount of 10 to 30 % by weight, preferably 14 to 25 % by weight, preferably 14 to 24 % by weight (based on the total weight of the filament).
  • thermoplastic binder comprises 60 to 80 % by weight, preferably 65 to 75 % by weight, preferably 66 to 74 % by weight of the at least one plasticizer (based on the total weight of the thermoplastic binder).
  • thermoplastic binder has a melting temperature of from
  • the at least one thermoplastic polymer is selected from the group consisting of a polyurethane, a polyamide, a polyvinylpyrrolidone, a polyethylene glycol, polyvinyl butyral, a polystyrene, a polyacrylate, a polymethacrylate, a polyolefin and a mixture thereof
  • the polyamide is selected from the group consisting of a copolyamide, polyamide 11, polyamide 12, polyamide 6,6, polyamide 6,12, a polyether block amide and a mixture thereof.
  • said thermoplastic polymer is a polyamide selected from the group consisting of a copolyamide, Polyamide 11, Polyamide 12, polyamide 6,6, polyamide 6,12, a polyether-blockamide and mixtures thereof.
  • the copolyamide which can in one embodiment be soluble in alcohol is preferably produced from a C4-C8 lactam and from a C10-C18 lactam. Most preferably said copolyamide is produced from caprolactam and laurinlactam.
  • the at least one thermoplastic polymer is present in the filament in an amount of 1 to 10 % by weight, preferably 4 to 8 % by weight (based on the total weight of the filament).
  • the at least one plasticizer is present in the filament in an amount of 5 to 20 % by weight, preferably 5 to 10 % by weight (based on the total weight of the filament).
  • the at least one plasticizer is a substituted or non-substituted aromatic or heteroaromatic carboxylic acid ester or a mixture thereof.
  • the at least one plasticizer must be compatible with the thermoplastic polymer.
  • the plasticizer must be preferably well tolerated in the polymer.
  • the plasticizer should be (readily) soluble and the polymer poorly soluble or insoluble in the extraction solvent.
  • said at least one plasticizer is a hydroxybenzoic acid ester or a mixture of hydroxybenzoic acid esters, especially if a polyamide is used as thermoplastic polymer.
  • the hydroxybenzoic acid esters are esters of hydroxybenzoic acid and a branched or linear alcohol, wherein the alcohol is selected from the group consisting of a branched or linear C8-C22 alcohol and mixtures thereof and preferably selected from 2-propyl heptyl alcohol, isodecyl alcohol, 1-docosanol, 1-octadecanol, 1- dodecanol, 2-ethylhexyl alcohol, fatty alcohol and a mixture thereof.
  • the fatty alcohol is an isostearyl, stearyl and/or behenyl alcohol.
  • the hydroxybenzoic acid ester is a p-hydroxybenzoic acid ester.
  • said at least one plasticizer is an ester mixture produced from p-hydroxybenzoic acid and a mixture of alcohols, wherein the alcohol mixture preferably comprises 2-propyl heptyl alcohol, isodecyl alcohol, 1-docosanol, 1- octadecanol, 1-dodecanol, isostearyl alcohol and/or 2-ethylhexyl alcohol.
  • the at least one plasticizer an ester which is solid at 20°C or an ester that is liquid at 20°C or a mixture thereof
  • the ester solid at 20°C is docosanyl-4-hydroxybenzoeic acid and the ester liquid at 20°C is 2-ethylhexyl-4- hydroxybenzoeic acid.
  • said at least one plasticizer is an ester which is solid at 20°C and/or an ester that is liquid at 20°C or comprises only esters that are solid at 20°C. It was unexpectedly found that including such a mixture in the plasticizer allowed the filament of the invention in particular for filaments based on ceramic powders to stay elastic for a longer time, while at the same time providing sufficient bonding capability upon printing.
  • the filament of the invention comprises at most 8, 6, 4or at most 2 wt% of processing additives, based on the total weight of the filament.
  • the at least one processing additive is selected from the group consisting of montan waxes, amide waxes, paraffin waxes, fatty acids, esters of fatty acids and any mixture thereof.
  • the at least one processing additive is a release agent.
  • the filament may nevertheless comprise impurities which are typically found in ceramic powders or in the thermoplastic binder of the invention. It is most preferred that the amount of such impurities does not exceed 0.8 wt% of the total mass of the filament of the invention. It is preferred that a filament of the invention does not comprise any anti adhesion additives.
  • the filament of the invention comprises, preferably consists of 60 to 80 % by weight, preferably 70 to 75 % by weight porcelain powder, 3 to 10 % by weight, preferably 5 to 10 % by weight polyamide, 15 to 20 % by weight plasticizer and 3 to 5 % by weight release agent.
  • the filament of the invention comprises, preferably consists of 80 to 85 % by weight, preferably 80 to 83 % by weight metal oxide powder (preferably aluminium oxide and/or zirconium dioxide powder), 3 to 7 % by weight polyamide, 8 to 12 % by weight plasticizer and 2 to 4 % by weight release agent.
  • metal oxide powder preferably aluminium oxide and/or zirconium dioxide powder
  • the filament has a diameter of 1 mm to 5 mm, preferably 1.1 to 3 mm, preferably 1.75 or 2.85 mm.
  • the filament is elastic, has a diameter of between 1 mm and 5 mm and a length of at least 10 cm.
  • a process for producing a shaped body comprises the following steps:
  • step (iii) sintering the shaped green body obtained from step (ii) to obtain said shaped body.
  • thermoplastic filaments even allows the use of conventional 3D printers, since it is possible to work in a low temperature range of 60-250° C, in particular 90-200°C.
  • the process is also suitable for the production of ceramic moulded parts using thermoplastic filaments.
  • the sinterable material is embedded in a thermoplastic binder, which can then be processed thermoplastically in the specified temperature range. It also allows particularly thin-walled and filigree structures to be produced.
  • the formulation contains a thermoplastic and a suitable plasticizer. Additional processing aids such as release agents, lubricants and surfactants may also be included.
  • the filament is produced by mixing the components to be present, preferably at a temperature of 20 to 60°C. Subsequently, the mixture is plasticized in a kneader or extruder, preferably at a temperature of 100 to 200°C to form a mass. The mass is then preferably ground or granulated, especially if the mass is produced in the kneader. Subsequently, the (ground or granulated) mass is preferably extruded in a single-screw extruder to form the filament, preferably at a temperature of 100 to 160°C.
  • step (i) the filament is extruded through a nozzle having a temperature of 120°C to 180°C, preferably 150°C to 170°C.
  • step (i) the filament is extruded through a nozzle having a diameter of 0.3 mm to 1.0 mm, preferably 0.4 mm to 0.6 mm.
  • the filament is extruded into a container or a box, wherein the atmosphere has a temperature of 30°C to 70°C, preferably 55°C to 65°C.
  • the filament is extruded onto a printing bed having a temperature of 30°C to 70°C, preferably 55°C to 65°C.
  • the filament is extruded into a container or a box having an atmosphere temperature of 30°C to 70°C, preferably 55°C to 65°C and onto a printing bed having a temperature of 30°C to 70°C, preferably 55°C to 65°C.
  • the filament is extruded with a printing velocity of 500 to 4,000 mm/min, preferably 1,500 to 2,000 mm/min.
  • the shaped green body is printed in layers, wherein the thickness of the layers is from 0.10 to 1.0 mm, preferably 0.10 to 0.50 mm.
  • the at least one plasticizer is at least partially removed by at least one extraction step, wherein the at least one plasticizer is soluble in the organic solvent(s) used in the at least one extraction step.
  • the at least one plasticizer is at least partially removed, preferably at least partially extracted, by contacting the green body with at least one organic solvent, preferably at a temperature of 20°C or higher.
  • the solvent is acetone, ethylacetate, hydrocarbons, and/or methylethylketone.
  • the step (ii) is carried out two or more times, preferably by using different solvents.
  • a solvent is used, wherein the at least one plasticizer is (readily) soluble and the thermoplastic polymer is poorly soluble or insoluble.
  • the shaped green body is thermally debound at a temperature of 200°C to 500°C, preferably 300°C to 450°C.
  • step (ii) the at least one plasticizer is partially removed by contacting the green body with an organic solvent, preferably at a temperature of 20°C or higher, preferably of 20°C to 50°C, and then the shaped green body is thermally debound at a temperature of 200°C to 500°C, preferably 300°C to 450°C.
  • the shaped green body is sintered at a temperature of 800°C to 2200°C, preferably 1100°C to 1700°C.
  • a filament according to the present invention or according to a preferred embodiment is used in a 3D printing device.
  • the process for producing a shaped body comprises the following steps:
  • a printing bed having a temperature of 30°C to 70°C, preferably 55°C to 65°C, and wherein the shaped green body is printed in layers, wherein the thickness of the layers is from 0.10 to 0.50 mm, preferably 0.10 to 0.20 mm, (ii) removing at least partially the at least one plasticizer from the shaped green body by contacting the green body with at least one organic solvent, preferably at a temperature of 20°C or higher, preferably of 20°C to 50°C, and then thermally debinding the shaped green body at a temperature of 200°C to 500°C, preferably 300°C to 450°C; and
  • step (iii) sintering the shaped green body obtained from step (ii) at a temperature of 800°C to 2200°C, preferably 1100°C to 1700°C to obtain said shaped body.
  • the present invention also relates to a green body producible by mixing a ceramic powder according to the present invention or according to a preferred embodiment of the present invention and a thermoplastic binder according to the present invention or according to a preferred embodiment of the present invention.
  • the present invention also relates to a binder according to the present invention or according to a preferred embodiment of the present invention which is used for the production of a filament for 3D printing devices.
  • a binder according to the present invention or according to a preferred embodiment of the present invention which is used for the production of a filament for 3D printing devices.
  • An exemplary release agent consists of 20% ethylenediamine bis-stearamide, 30% paraffin wax and 50% stearic acid.
  • Example 2 The individual components as listed below were extruded as described in Example 1 at 120°C to a filament with a diameter of 1.75 mm (suitable for conventional 3D printers) and can then be used in the 3D printing process.
  • Example 2 The individual components as listed below were extruded as described in Example 1 at 120°C to a filament with a diameter of 1.75 mm (suitable for conventional 3D printers) and can then be used in the 3D printing process.
  • Example 4 Filament with zirconium dioxide
  • Example 2 The individual components as listed below were extruded as described in Example 1 at 120°C to a filament with a diameter of 1.75 mm (suitable for conventional 3D printers) and can then be used in the 3D printing process.
  • the filaments of example 1 were processed on a 3D printer of the company FELIX (model FELIX pro 2).
  • a gear wheel with a diameter of 40 mm and a height of 7 mm was printed as a structural element. The following settings were used:
  • the specimen was placed for 20 h at 36°C in 150 ml acetone and then dried for 24 h at room temperature.
  • Example 7 Sintering of the test specimen
  • the specimen was then slowly sintered in a furnace made by Nabertherm (type B 180). The following temperature program was used:
  • Test specimen (sintered) has the following parameter:

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)

Abstract

La présente invention concerne un filament approprié pour être utilisé dans un dispositif d'impression 3D, le filament comprenant une poudre céramique, un liant thermoplastique et un ou plusieurs additifs de traitement. L'invention concerne également un procédé de production d'un corps façonné, ledit procédé comprenant l'étape consistant à imprimer une ébauche crue façonnée à l'aide du filament selon l'invention. L'invention concerne également l'utilisation d'un filament selon l'invention dans un dispositif d'impression 3D. L'invention concerne également l'utilisation d'un liant selon l'invention pour la production d'un filament destiné à des dispositifs d'impression 3D.
PCT/EP2019/058256 2019-04-02 2019-04-02 Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d WO2020200424A1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114213107A (zh) * 2021-12-30 2022-03-22 武汉理工大学 一种基于陶瓷材料的3d打印成型方法
EP4063337A1 (fr) * 2021-03-26 2022-09-28 Glassomer GmbH Matériau et procédé de fabrication et de mise en forme de céramiques transparentes
WO2023186645A1 (fr) * 2022-03-29 2023-10-05 Technische Universität Bergakademie Freiberg Filaments pour la production 3d thermoplastique de composants céramiques, de composants métalliques ou de composants à base de composites métal-céramique ou de composites de matériaux

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WO2016004985A1 (fr) 2014-07-08 2016-01-14 Amril Ag Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d
WO2018059473A1 (fr) * 2016-09-30 2018-04-05 珠海天威飞马打印耗材有限公司 Filament de formation tridimensionnel, procédé de fabrication et procédé de formation
CN108503355A (zh) * 2018-04-18 2018-09-07 昆山卡德姆新材料科技有限公司 一种3d打印用料、其制备方法和用途

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WO2016004985A1 (fr) 2014-07-08 2016-01-14 Amril Ag Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d
WO2018059473A1 (fr) * 2016-09-30 2018-04-05 珠海天威飞马打印耗材有限公司 Filament de formation tridimensionnel, procédé de fabrication et procédé de formation
CN108503355A (zh) * 2018-04-18 2018-09-07 昆山卡德姆新材料科技有限公司 一种3d打印用料、其制备方法和用途

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4063337A1 (fr) * 2021-03-26 2022-09-28 Glassomer GmbH Matériau et procédé de fabrication et de mise en forme de céramiques transparentes
WO2022200629A1 (fr) 2021-03-26 2022-09-29 Glassomer Gmbh Matériau et procédé de fabrication et de façonnage de céramiques transparentes
CN114213107A (zh) * 2021-12-30 2022-03-22 武汉理工大学 一种基于陶瓷材料的3d打印成型方法
WO2023186645A1 (fr) * 2022-03-29 2023-10-05 Technische Universität Bergakademie Freiberg Filaments pour la production 3d thermoplastique de composants céramiques, de composants métalliques ou de composants à base de composites métal-céramique ou de composites de matériaux

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