WO2017188550A1 - Composite liant et son procédé de préparation - Google Patents

Composite liant et son procédé de préparation Download PDF

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Publication number
WO2017188550A1
WO2017188550A1 PCT/KR2016/015009 KR2016015009W WO2017188550A1 WO 2017188550 A1 WO2017188550 A1 WO 2017188550A1 KR 2016015009 W KR2016015009 W KR 2016015009W WO 2017188550 A1 WO2017188550 A1 WO 2017188550A1
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WIPO (PCT)
Prior art keywords
poly
ink
ethylene glycol
binder
viscosity
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Legal status (The legal status 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 status listed.)
Ceased
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PCT/KR2016/015009
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English (en)
Korean (ko)
Inventor
백운규
윤희성
최정현
선세호
김주현
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Industry University Cooperation Foundation IUCF HYU
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Industry University Cooperation Foundation IUCF HYU
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Publication date
Priority claimed from KR1020160146351A external-priority patent/KR20170123572A/ko
Application filed by Industry University Cooperation Foundation IUCF HYU filed Critical Industry University Cooperation Foundation IUCF HYU
Publication of WO2017188550A1 publication Critical patent/WO2017188550A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—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
    • 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

Definitions

  • the present invention relates to a binder composite and a method for producing the same, and more particularly, to a binder composite comprising a thermoplastic binder mixed with PLA and PEG, ceramic particles and an antioxidant and a method for producing the same.
  • Three-dimensional printing technology such as FDM (Fused deposition modeling) to extrude and output the thermoplastic resin according to the printing method, SLA (Stereolithography) to irradiate and cure the light curable resin and plastic, ceramic, metal, or glass Laser is directly irradiated to the powder material, and classified into a SLS (Selective laser sintering) method for molding molten powder material.
  • FDM Freused deposition modeling
  • SLA Stepolithography
  • SLS Selective laser sintering
  • Plastics which are currently the most commonly used materials for three-dimensional printing, are inexpensive and have excellent processability, while molded articles made of plastic are weak in heat and low in strength.
  • molded articles made of ceramics are resistant to high temperatures and excellent in durability, and thus are most commonly used as materials for three-dimensional printing using the SLS method, but three-dimensional printing using the SLS method requires very expensive equipment, and ceramics. Silver is very high and inferior in workability.
  • the strength, surface properties, manufacturing time, resolution, or physical properties of the finished product pointed out as a problem of three-dimensional printing originate from the raw material, and recently, characteristics of a molded body manufactured by three-dimensional printing using various materials. Active research is being conducted on composite inks that can improve the quality of the resin.
  • Korean Patent Publication No. 10-2015-0042660 Applicant: Rocket, Inc., Appl. No. 10-2013-0121602
  • an ink for three-dimensional printing and a mixture of ceramic and poly (lactic acid) with ink.
  • the three-dimensional printing ink which improves the intensity
  • One technical problem to be solved by the present invention is to provide a method for producing a binder composite comprising an environmentally friendly organic binder.
  • Another technical problem to be solved by the present invention is to provide a method for producing a binder composite with easy viscosity control.
  • Another technical problem to be solved by the present invention is to provide a method for producing a binder composite that is easy to control the elastic modulus.
  • Another technical problem to be solved by the present invention is to provide a method for producing a binder composite with improved stability.
  • Another technical problem to be solved by the present invention is to provide a method for producing a binder composite with improved thermal properties.
  • Another technical problem to be solved by the present invention is to provide a method for producing a binder composite with improved mechanical properties.
  • the technical problem to be solved by the present invention is not limited to the above.
  • the present invention provides a method for producing a binder composite.
  • the manufacturing method of the binder composite preparing a thermoplastic binder mixed with Poly (lactic acid) and Poly (ethylene glycol) and to prevent oxidation of ceramic particles and Poly (lactic acid) in the thermoplastic binder. Adding an antioxidant to prepare the ink.
  • the manufacturing method of the binder composite may include adjusting the viscosity of the ink by adjusting the content or molecular weight of the poly (ethylene glycol).
  • the manufacturing method of the binder composite may include controlling the glass transition temperature and the melting point of the ink by controlling the content of the poly (ethylene glycol).
  • the manufacturing method of the binder composite may include controlling the fracture toughness of the molded product manufactured by using the ink by adjusting the content of the poly (ethylene glycol).
  • the manufacturing method of the binder composite may include adjusting the viscosity of the ink by adjusting the content of the antioxidant.
  • the manufacturing method of the binder composite may include adjusting the viscosity of the ink by adjusting the shape of the ceramic particles.
  • the manufacturing of the thermoplastic binder in which the poly (lactic acid) and the poly (ethylene glycol) are mixed may include heat treating the thermoplastic binder.
  • the method of manufacturing the binder composite may further include ball milling the ceramic particles before adding the ceramic particles to the thermoplastic binder.
  • the present invention provides a binder composite.
  • the binder composite may include a thermoplastic binder including poly (lactic acid) and poly (ethylene glycol), an ink including ceramic particles, and an antioxidant for preventing oxidation of the poly (lactic acid).
  • a thermoplastic binder including poly (lactic acid) and poly (ethylene glycol) an ink including ceramic particles
  • an antioxidant for preventing oxidation of the poly (lactic acid).
  • the viscosity of the ink decreases as the content of the poly (ethylene glycol) decreases, and includes increasing as the molecular weight of the poly (ethylene glycol) and the content of the antioxidant
  • the viscosity includes decreasing as the shape of the ceramic particles approaches a sphere, and the viscosity of the ink controls the content and molecular weight of the poly (ethylene glycol), the content of the antioxidant, and the shape of the ceramic particles. And include being adjusted.
  • the ceramic particles may include at least one of silica (SiO 2 ) particles, or zirconium silicate (ZrSiO 4 ) particles.
  • the binder composite according to the embodiment of the present invention includes a thermoplastic binder, ceramic particles, and an antioxidant in which poly (lactic acid) and poly (ethylene glycol) are mixed.
  • the viscosity of the ink may be adjusted by adjusting the content and molecular weight of the poly (ethylene glycol), the content of the antioxidant, and the shape of the ceramic particles. Accordingly, a binder composite may be provided in which the viscosity of the ink is adjusted to suit the purpose.
  • thermoplastic binder includes the poly (lactic acid) and the poly (ethylene glycol). Accordingly, a binder composite can be provided with improved thermal properties such as glass transition temperature and melting point, and mechanical properties such as fracture toughness of shaped bodies produced using the ink.
  • the thermoplastic binder includes the poly (lactic acid) and the poly (ethylene glycol).
  • the elastic modulus of the ink may be adjusted according to the molecular weight of the poly (ethylene glycol). Accordingly, a binder composite whose elastic modulus is adjusted to suit the purpose can be provided.
  • the binder composite according to the embodiment of the present invention includes the antioxidant for preventing oxidation of the thermoplastic binder. Accordingly, the binder composite may be provided to prevent the oxidation of the polymer chain of the thermoplastic binder, thereby maintaining the mechanical properties of the thermoplastic binder.
  • FIG. 1 is a flowchart illustrating a method of manufacturing a binder composite according to an embodiment of the present invention.
  • FIG. 2 is a view for explaining the viscosity of the ink according to the poly (ethylene glycol) content of the binder composite prepared according to the embodiment of the present invention.
  • 3 is a view for explaining the viscosity of the ink according to the molecular weight of the poly (ethylene glycol) of the binder composite prepared according to the embodiment of the present invention.
  • FIG. 4 is a view for explaining the antioxidant effect of the ink according to the antioxidant content of the binder composite prepared according to the embodiment of the present invention.
  • FIG. 5 is a view for explaining the viscosity of the ink according to the antioxidant content of the binder composite prepared according to the embodiment of the present invention.
  • FIG. 6 is a view for explaining the elastic modulus of the ink according to the molecular weight of Poly (ethylene glycol) of the binder composite prepared according to the embodiment of the present invention.
  • FIG. 7 is a view illustrating the flexural strength and shrinkage rate of a molded article manufactured using ink according to the average particle size of the spherical silica particles constituting the ceramic particles added to the binder composite prepared according to the embodiment of the present invention. It is a drawing for
  • FIG. 8 is a view for explaining the viscosity of the ink according to the shape of the silica particles constituting the ceramic particles added to the binder composite prepared according to the embodiment and comparative example of the present invention.
  • FIG. 9 is a view for explaining the particle size distribution of the ceramic particles added to the binder composite prepared according to the embodiment of the present invention.
  • first, second, and third are used to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one component from another. Thus, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment.
  • first component in one embodiment may be referred to as a second component in another embodiment.
  • second component in another embodiment.
  • Each embodiment described and illustrated herein also includes its complementary embodiment.
  • the term 'and / or' is used herein to include at least one of the components listed before and after.
  • FIG. 1 is a flowchart illustrating a method of manufacturing a binder composite according to an embodiment of the present invention.
  • thermoplastic binder in which poly (lactic acid) and poly (ethylene glycol) are mixed is manufactured (S110).
  • the poly (ethylene glycol) is a plasticizer, by lowering the glass transition temperature and melting point of the ink containing the poly (ethylene glycol), the processability of the ink can be improved.
  • the fracture toughness of the molded product manufactured using the ink may be controlled by the poly (ethylene glycol). In other words, as the content of the poly (ethylene glycol) is increased, the fracture toughness of the ink is increased, and the fracture toughness, which is the energy required to destroy the material, is increased, thereby increasing the amount of poly-ethylene glycol. Mechanical strength can be improved.
  • the viscosity of the ink is controlled by the poly (ethylene glycol), and accordingly, the materials constituting the ink may be uniformly mixed.
  • the molecular weight of the poly (ethylene glycol) may be adjusted to control the viscosity of the ink. In other words, as the molecular weight of the poly (ethylene glycol) increases, the viscosity of the ink increases, and as the molecular weight of the poly (ethylene glycol) decreases, the viscosity of the ink may decrease.
  • the manufacturing of the thermoplastic binder in which the poly (lactic acid) and the poly (ethylene glycol) are mixed may include heat treating the thermoplastic binder.
  • the heat treatment may be performed at 80 ° C.
  • An ink is manufactured by adding an antioxidant to prevent oxidation of ceramic particles and the poly (lactic acid) to the thermoplastic binder (S120).
  • the ceramic particles may include at least one of spherical silica (SiO 2 ) particles or zirconium silicate (ZrSiO 4 ) particles.
  • the antioxidant is a mixture of butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), propyl gallate and tert-butylhydroquinone (TBHQ), 2% ⁇ -tocopherol, 1% butylated hydroxytoluene (BHT) and 1% butylated hydroxyanisole
  • BHA butylated hydroxyanisole
  • BHT butylated hydroxytoluene
  • TBHQ tert-butylhydroquinone
  • BHA butylated hydroxyanisole
  • BHT butylated hydroxytoluene
  • BHT butylated hydroxyanisole
  • Tetrakis methylene (3,5-di-tert-butyl-4-hydroxy-hydrocinnamate
  • the viscosity of the ink when using the spherical silica particles, compared to using amorphous silica particles, the viscosity of the ink can be reduced.
  • the closer the shape of the ceramic particles is to the spherical shape the lower the viscosity of the ink.
  • the antioxidant may prevent oxidation of poly (lactic acid), thereby improving stability of the ink.
  • the viscosity of the ink may be adjusted by the antioxidant. In other words, as the content of the antioxidant is increased, the viscosity of the ink is increased, and as the content of the antioxidant is decreased, the viscosity of the ink can be decreased.
  • the ceramic particles may be added by being ball milled before being added to the thermoplastic binder.
  • the binder composite according to the embodiment of the present invention includes the thermoplastic binder including the poly (lactic acid) and the poly (ethylene glycol), the ceramic particles, and the antioxidant, but the content of the poly (ethylene glycol) And by adjusting the molecular weight, the content of the antioxidant, and the shape of the ceramic particles, the viscosity of the ink can be easily adjusted. Because of this, the viscosity of the ink is adjusted to suit the application can be provided a binder composite with improved processability.
  • the binder composite according to the embodiment of the present invention includes the poly (lactic acid) and the poly (ethylene glycol) as the thermoplastic binder, and includes the antioxidant for preventing oxidation of the thermoplastic binder.
  • the glass transition temperature and melting point of the binder composite according to the embodiment of the present invention are reduced, and the fracture toughness of the molded article manufactured using the ink can be improved and maintained.
  • the binder composite when the binder composite does not include the thermoplastic binder including the poly (lactic acid) and the poly (ethylene glycol), the glass transition temperature and melting point of the ink are increased and destroyed. Toughness may be lowered.
  • the polymer chain of the thermoplastic binder when it does not contain the antioxidant, the polymer chain of the thermoplastic binder is oxidized, the stability of the ink containing the thermoplastic binder is lowered, the fracture toughness of the molded article produced using the ink is weakened and mechanical The property cannot be maintained.
  • three-dimensional printing technology for the production of precision component materials used in various industries, such as electronics, automobiles, aviation, or medical may be a limitation.
  • the binder composite when the binder composite includes the poly (ethylene glycol) and the antioxidant, thermal properties such as glass transition temperature and melting point of the ink are improved, and the ink is used.
  • the mechanical properties such as the fracture toughness of the molded article produced by this can be improved and maintained.
  • FIG 2 is a view for explaining the viscosity of the ink according to the poly (ethylene glycol) content of the binder composite prepared according to an embodiment of the present invention
  • Figure 3 is prepared according to an embodiment of the present invention, the binder composite It is a figure for explaining the viscosity of the ink according to the molecular weight of poly (ethylene glycol).
  • the weight of the thermoplastic binder the content of the poly (lactic acid) is 90%, the ink of the poly (ethylene glycol) is 10%, and the content of the poly (lactic acid) is An ink of 80% and a poly (ethylene glycol) content of 20% was prepared. The viscosity according to the shear rate of the prepared inks was measured.
  • the poly (lactic acid) is 90% by weight based on the weight of the thermoplastic binder, and the poly (lactic acid) is 80%, compared to the ink having 10% of the poly (ethylene glycol). It can be seen that the viscosity of the ink in which the content of the poly (ethylene glycol) is 20%, that is, the ink in which the content of the poly (ethylene glycol) is increased is lowered. In other words, at a shear rate of 10 / s, the viscosity of the ink having 10% of poly (ethylene glycol) is 2.7 Pa ⁇ s, and the viscosity of the ink having 20% of poly (ethylene glycol) is 0.3 Pa ⁇ s, It can be seen that the viscosity of the ink is reduced.
  • the viscosity of the ink can be adjusted according to the content of the poly (ethylene glycol).
  • the viscosity of the ink may be decreased by increasing the content of the poly (ethylene glycol) or the viscosity of the ink may be increased by decreasing the content of the poly (ethylene glycol).
  • an ink including the poly (ethylene glycol) having a molecular weight of 200 and an ink including the poly (ethylene glycol) having a molecular weight of 20,000 were prepared.
  • the viscosity according to the shear rate of the prepared inks was measured.
  • the ink having a molecular weight of 200 of the poly (ethylene glycol) constituting the thermoplastic binder and the molecular weight of the poly (ethylene glycol) are The viscosity difference of 20,000 ink can be confirmed.
  • the molecular weight of the poly (ethylene glycol) is increased from 200 to 20,000, it can be seen that at the shear rate 10 / s, the viscosity of the ink is increased from 13 Pa.s to 62 Pa.s.
  • the viscosity of the ink can be adjusted according to the molecular weight of the poly (ethylene glycol).
  • the viscosity of the ink may be increased by increasing the molecular weight of the poly (ethylene glycol) or the content of the poly (ethylene glycol) may be decreased to decrease the viscosity of the ink.
  • Figure 4 is a view for explaining the antioxidant effect of the ink according to the antioxidant content of the binder composite, prepared according to an embodiment of the present invention
  • Figure 5 is an oxidation of the binder composite, prepared according to an embodiment of the present invention It is a figure for demonstrating the viscosity of ink according to inhibitor content.
  • an ink containing no antioxidant an ink containing 1% or 2% of an antioxidant, was prepared based on the weight of the ink. Molded bodies were prepared using the inks, and the molded bodies were photographed to evaluate browning phenomenon.
  • the polymer chain of the thermoplastic binder in which the poly (lactic acid) and the poly (ethylene glycol) are mixed is oxidized, and browning occurs in a molded article manufactured using the ink. You can see that.
  • the ink to which the antioxidant is added it is confirmed that oxidation of the polymer chain of the thermoplastic binder is prevented, so that browning phenomenon of the molded product manufactured using the ink is reduced. Accordingly, the oxidation of the polymer chain of the thermoplastic binder is prevented, so that the stability of the ink including the thermoplastic binder is improved, and the mechanical properties of the molded article manufactured using the ink can be maintained.
  • the preparation of the ink by adding the antioxidant is an effective method of preventing oxidation of the molded article produced using the ink, thereby suppressing browning phenomenon of the molded article.
  • an ink containing no antioxidant an ink containing 1% or 2% of an antioxidant, was prepared based on the weight of the ink. The viscosity according to the shear rate of the prepared inks was measured.
  • the ink having an antioxidant content of 1% is higher than the ink containing no antioxidant, and the ink having an antioxidant content of 2% is higher than the ink having an antioxidant content of 1%.
  • the viscosity of the ink can be adjusted according to the content of the antioxidant.
  • the viscosity of the ink may be increased by increasing the content of the antioxidant, or the viscosity of the ink may be decreased by decreasing the content of the antioxidant.
  • FIG. 6 is a view for explaining the elastic modulus of the ink according to the molecular weight of the poly (ethylene glycol) of the binder composite prepared according to the embodiment of the present invention.
  • an ink including the poly (lactic acid) and the ceramic particles and the poly (ethylene glycol) having a molecular weight of 200 was prepared, and the poly (lactic acid) and the ceramic particles were included.
  • an ink including the poly (ethylene glycol) having a molecular weight of 4,000, and preparing the ink including the poly (lactic acid) and the ceramic particles and containing the poly (ethylene glycol) having a molecular weight of 20,000 were not measured.
  • the elastic modulus of the ink containing the poly (ethylene glycol) having a molecular weight of 4,000 is greater than that of the ink containing the poly (ethylene glycol) having a molecular weight of 200, and the ink containing the poly (ethylene glycol) having a molecular weight of 4,000
  • the elastic modulus of the ink including the poly (ethylene glycol) having a molecular weight of 20,000 is large.
  • the elastic modulus of the ink containing the poly (ethylene glycol) having a molecular weight of 20,000 is confirmed to be close to the elastic modulus of the ink containing the poly (lactic acid) and not containing the poly (ethylene glycol) and the ceramic particles. Can be.
  • the elastic modulus of the ink according to the molecular weight of the poly (ethylene glycol) can be confirmed.
  • the molecular weight of the poly (ethylene glycol) is 200, 4,000, or 20,000, it can be seen that the elastic modulus of the ink increases as the molecular weight of the poly (ethylene glycol) increases.
  • the elastic modulus of the ink can be adjusted according to the molecular weight of the poly (ethylene glycol).
  • the elastic modulus of the ink may be increased by increasing the molecular weight of the poly (ethylene glycol) or the elastic modulus of the ink may be reduced by decreasing the molecular weight of the poly (ethylene glycol).
  • FIG. 7 illustrates the flexural strength and shrinkage rate of a molded article manufactured using ink according to the average particle size of spherical silica particles constituting ceramic particles added to a binder composite, prepared according to an embodiment of the present invention. It is a figure for following.
  • the ceramic particles were composed of a mixture of the spherical silica particles and the zircon silicate particles.
  • the spherical silica particles were composed of particles having an average particle size of 30 ⁇ m, 9 ⁇ m (99.6%, Sibelco, Belgium), or 0.3 ⁇ m (99.7%, Denka, Japan), and the zirconium silicate was an amorphous particle with an average particle size of 1 ⁇ m. (97%, Cenotec, Korea).
  • the bending strength of the molded bodies prepared from the ink to which the ceramic particles were added according to Examples 1 to 9 was measured by using a universal testing machine. Bending strength measurement standard is according to ASTM C1161-13, UTM used for bending strength measurement is equipped with 250kg load cell (H10SK, Hounsefield, England), and bending strength measurement is 80mm span size, 1mm / min cross-head Progress at speed.
  • the mixing ratio of the spherical silica particles having an average particle size of 30 ⁇ m, 9 ⁇ m, or 0.3 ⁇ m constituting the ceramic particles the bending strength and shrinkage rate of the molded product produced using the ink to which the ceramic particles are added are changed. You can see that.
  • the mixing ratio of the spherical silica particles having an average particle size of 30 ⁇ m, 9 ⁇ m, or 0.3 ⁇ m constituting the ceramic particles can be controlled.
  • a binder composite can be provided, which can produce a molded article in which bending strength and shrinkage rate are adjusted according to the use.
  • Figure 8 is a view for explaining the viscosity of the ink according to the shape of the silica particles constituting the ceramic particles added to the binder composite prepared according to the embodiment and comparative example of the present invention
  • Figure 9 is an embodiment of the present invention The figure for demonstrating the particle size distribution of the ceramic particle added to the binder composite manufactured according to this.
  • the spherical and amorphous silica to which the ceramic particles are added including the 52.5% spherical silica particles having a mean particle size of 30 ⁇ m, 22.5% of spherical silica particles having a particle size of 9 ⁇ m, and 25% of zirconium silicate particles having a size of 1 ⁇ m.
  • the ink (irregular) to which the ceramic particles containing particles were added was prepared. The viscosity according to the shear rate of the prepared inks was measured.
  • the ink to which the ceramic particles containing the spherical silica particles are added has a lower viscosity than the ink to which the ceramic particles containing the amorphous silica particles are added.
  • the shape of the silica particles included in the ceramic particles it is possible to adjust the viscosity of the ink to which the ceramic particles are added.
  • the viscosity of the ink may be decreased by adding the ceramic particles including the spherical silica particles, or the viscosity of the ink may be increased by adding the ceramic particles including the amorphous silica.
  • the ceramic particles were prepared including 52.5% spherical silica particles having an average particle size of 30 ⁇ m, 22.5% spherical silica particles having a size of 9 ⁇ m, and 25% zirconium silicate particles having a thickness of 1 ⁇ m.
  • the particle size distribution of the prepared ceramic particles was measured.
  • the particle size of the ceramic particles was measured from a minimum of 0.4 ⁇ m to a maximum of 100 ⁇ m.
  • the binder composite according to the embodiment of the present invention is excellent in mechanical properties and elastic modulus, and can be used in a three-dimensional printer process.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne un procédé de préparation de composite liant. Le procédé de préparation d'un composite liant comprend les étapes suivantes : la préparation d'un liant thermoplastique dans lequel du poly(acide lactique) et du poly(éthylène glycol) sont mélangés ; et la préparation d'une encre en ajoutant, au liant thermoplastique, des particules de céramique et un antioxydant empêchant l'oxydation du poly(acide lactique).
PCT/KR2016/015009 2016-04-28 2016-12-21 Composite liant et son procédé de préparation Ceased WO2017188550A1 (fr)

Applications Claiming Priority (4)

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KR10-2016-0051926 2016-04-28
KR20160051926 2016-04-28
KR10-2016-0146351 2016-11-04
KR1020160146351A KR20170123572A (ko) 2016-04-28 2016-11-04 바인더 복합물 및 그 제조 방법

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11426932B2 (en) 2018-05-15 2022-08-30 Hewlett-Packard Development Company, L.P. Three-dimensional printing

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US5387380A (en) * 1989-12-08 1995-02-07 Massachusetts Institute Of Technology Three-dimensional printing techniques
KR20150004260A (ko) * 2013-07-01 2015-01-12 한국전자통신연구원 Ic 카드를 인증 매체로 이용하기 위한 방법, 장치 및 시스템
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KR20160033004A (ko) * 2014-09-17 2016-03-25 에스케이케미칼주식회사 3d 인쇄용 폴리유산 수지 조성물

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5387380A (en) * 1989-12-08 1995-02-07 Massachusetts Institute Of Technology Three-dimensional printing techniques
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