WO2019208741A1 - ポリアミド系3次元プリンタ用材料 - Google Patents
ポリアミド系3次元プリンタ用材料 Download PDFInfo
- Publication number
- WO2019208741A1 WO2019208741A1 PCT/JP2019/017812 JP2019017812W WO2019208741A1 WO 2019208741 A1 WO2019208741 A1 WO 2019208741A1 JP 2019017812 W JP2019017812 W JP 2019017812W WO 2019208741 A1 WO2019208741 A1 WO 2019208741A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyamide
- resin
- dimensional printer
- filament
- resin composition
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
-
- 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
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/255—Enclosures for the building material, e.g. powder containers
- B29C64/259—Interchangeable
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- B33Y80/00—Products made by additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- 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
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Definitions
- the present invention relates to a polyamide-based three-dimensional printer material, a hot-melt laminated three-dimensional printer filament, a resin molded body, a wound body, and a hot-melt laminated three-dimensional printer mounting cartridge.
- Extrusion thermal lamination deposition systems that is, systems commonly referred to today as three-dimensional printers (3D printers, for example, thermal lamination deposition systems manufactured by Stratasys Incorporated, USA) extrude fluid materials. It is used to construct a three-dimensional object in layers based on a computer-aided design (CAD) model by extruding from a nozzle part provided in the head.
- CAD computer-aided design
- FDM method inserts raw materials into the extrusion head as filaments made of thermoplastic resin, and continuously on the XY plane substrate in the chamber from the nozzle part provided in the extrusion head while heating and melting.
- thermoplastic materials such as acrylonitrile-butadiene-styrene resin and polylactic acid have been suitably used as raw materials for the FDM method from the viewpoint of molding processability and fluidity (Patent Documents 3 to 5). ).
- Patent Document 6 a material for a hot melt lamination type three-dimensional printer containing 80% by mass or more of a polyamide copolymer having a crystal melting temperature (melting point Tm) of 200 ° C. or less is disclosed (Patent Document 6).
- Patent Document 6 discloses a technical idea of adjusting the thermal characteristics of a material for a three-dimensional printer by using a resin composition containing a crystalline polyamide resin and an amorphous polyamide resin. Absent.
- a crystalline polyamide-based resin having a low crystal melting temperature (melting point Tm) such as polyamide 12 is used for modeling because the crystallization speed is slow, and there are relatively few problems of adhesion between layers and warping. There was a problem that the obtained molded body had low rigidity, heat resistance was insufficient, and applicable fields were limited.
- the object of the present invention is for a polyamide-based three-dimensional printer that has excellent adhesion between layers by blending relatively easily available raw materials, excellent warping, excellent formability, and various characteristics such as surface appearance and heat resistance.
- Another object of the present invention is to provide a resin molded body, a wound body, and a heat-melting laminated type three-dimensional printer mounting cartridge using the polyamide-based three-dimensional printer material.
- the resin composition (C) contains a crystalline polyamide resin (A) and an amorphous polyamide resin (B), and the resin composition (C) has a crystallization heat amount of 5 to 60 J in differential scanning calorimetry.
- a material for a polyamide-based three-dimensional printer, which is / g. ⁇ 2> The polyamide-based three-dimensional printer material according to ⁇ 1>, wherein the resin composition (C) has a crystallization heat amount of 20 to 60 J / g in differential scanning calorimetry.
- the crystalline polyamide-based resin (A) contains one or more selected from polyamide 6, polyamide 66, polyamide MXD6, polyamide 9T, polyamide 10T and copolymerized polyamide thereof, ⁇ 1> or The material for a polyamide-based three-dimensional printer according to ⁇ 2>.
- Tg glass transition temperature of the amorphous polyamide resin (B) is 30 ° C.
- the glass transition temperature (Tg) of the crystalline polyamide resin (A), ⁇ 1> to ⁇ 4> The material for a polyamide-based three-dimensional printer according to any one of 4>.
- the difference (Tm ⁇ Tc) between the crystal melting temperature (Tm) and the crystallization temperature (Tc) in the differential scanning calorimetry of the resin composition (C) is 30 ° C. to 60 ° C.
- ⁇ 10> A resin molded article formed by a three-dimensional printer using the filament for a hot melt laminated three-dimensional printer according to ⁇ 9>.
- ⁇ 11> A wound body of filaments for a heat-melting laminated three-dimensional printer according to ⁇ 9>.
- ⁇ 12> A hot-melt laminated type three-dimensional printer mounting cartridge in which the wound body according to ⁇ 11> is stored.
- the present invention it is possible to provide a polyamide-based three-dimensional printer material that has excellent adhesion between layers, little warpage, excellent formability, and excellent properties such as surface appearance and heat resistance. Moreover, since the said various characteristics can be adjusted by mix
- FIG. 1 is a schematic view showing an example of an embodiment of a resin molded body of the present invention.
- the present embodiment a mode for carrying out the present invention (hereinafter referred to as “the present embodiment”) will be described in detail.
- the following embodiments are examples for explaining the present invention, and are not intended to limit the present invention to the following contents.
- the present invention can be implemented with various modifications within the scope of the gist.
- the polyamide-based three-dimensional printer material of the present invention contains a resin composition (C) described later.
- the resin composition (C) contains a crystalline polyamide resin (A) described later and an amorphous polyamide resin (B) described later.
- the crystalline polyamide resin (A) is not particularly limited, but specific examples thereof include the following. That is, polycaproamide (polyamide 6), polyhexamethylene adipamide (polyamide 66), polytetramethylene adipamide (polyamide 46), polyhexamethylene sebamide (polyamide 610), polyhexamethylene dodecamide (polyamide) 612), polyundecamethylene adipamide (polyamide 116), polybis (4-aminocyclohexyl) methane dodecamide (polyamide PACM12), polybis (3-methyl-4aminocyclohexyl) methane dodecamide (polyamide dimethyl PACM12), poly Nonamethylene terephthalamide (Polyamide 9T), Polydecamethylene terephthalamide (Polyamide 10T), Polyundecamethylene terephthalamide (Polyamide 11T), Polyundecamethylene hexahydro Rephthalamide
- polyamide 6, polyamide 66, polyamide MXD6, polyamide 9T, polyamide 10T and copolymerized polyamide thereof are preferable from the viewpoints of moldability, surface appearance, and chemical resistance.
- Polyamides are preferred from the viewpoint of higher heat resistance and mechanical strength. 9T and polyamide 10T are more preferable, and polyamide 6 and polyamide 66 are more preferable from the viewpoint of a balance between heat resistance and economy.
- the crystallization calorie ( ⁇ Hc) measured at a cooling rate of 10 ° C./min in the differential scanning calorimetry of the crystalline polyamide resin (A) is preferably 30 J / g or more and 100 J / g or less.
- the resin composition (C) is preferably blended with an amorphous polyamide-based resin (B), which will be described later, so that the balance of heat resistance, chemical resistance, mechanical strength and the like can be easily adjusted.
- the crystallization heat amount of the crystalline polyamide resin (A) is more preferably 40 J / g or more and 80 J / g or less.
- the crystallization calorie ( ⁇ Hc) was measured from a room temperature to a crystal melting temperature (melting point Tm) + 20 ° C. at a heating rate of 10 ° C./min according to JIS K7122, using a differential scanning calorimeter (DSC). It is a value measured when the temperature is lowered to 30 ° C. at a cooling rate of 10 ° C./min after the temperature is raised to 30 ° C.
- the crystal melting temperature (melting point Tm) of the crystalline polyamide resin (A) is not particularly limited, but is usually 120 ° C. to 320 ° C.
- the crystal melting temperature (melting point Tm) is less than 260 ° C., many commercially available printers can be used, and power consumption can be suppressed by setting the modeling temperature low, which is preferable.
- the crystal melting temperature (melting point Tm) is 260 ° C. or higher because heat resistance is easily secured and resistance in a solder reflow process such as a printed circuit board is easily obtained.
- the crystal melting temperature (melting point Tm) of the crystalline polyamide resin (A) is more preferably 120 ° C. or higher and lower than 260 ° C., or 260 ° C. or higher and 320 ° C. or lower. It is more preferable that the temperature is any one of not lower than 230 ° C. and not lower than 270 ° C. and not higher than 310 ° C.
- the amorphous polyamide-based resin (B) is not particularly limited, but the crystallization heat amount measured at a cooling rate of 10 ° C./min in the differential scanning calorimetry is less than 5 J / g. Is preferred. In the present invention, those having a heat of crystallization of 0 J / g are more preferred. As a specific example, a polycondensate containing 30 to 70 mol%, more preferably 40 to 60 mol% of isophthalic acid as the dicarboxylic acid component is preferable.
- polycondensates include the following. That is, isophthalic acid / polycondensate of ⁇ , ⁇ -linear aliphatic dicarboxylic acid / metaxylylenediamine having 4 to 20 carbon atoms, isophthalic acid / terephthalic acid / hexamethylenediamine polycondensate, isophthalic acid / terephthalic acid / Hexamethylenediamine / bis (3-methyl-4-aminocyclohexyl) methane polycondensate, terephthalic acid / 2,2,4-trimethylhexamethylenediamine / 2,4,4-trimethylhexamethylenediamine polycondensate , Isophthalic acid / bis (3-methyl-4-aminocyclohexyl) methane / ⁇ -laurolactam polycondensate, isophthalic acid / 2,2,4-trimethylhexamethylenediamine / 2,4,4--
- benzene ring of the terephthalic acid component and / or isophthalic acid component constituting these polycondensates is substituted with an alkyl group or a halogen atom.
- two or more of these amorphous polyamide resins can be used in combination.
- a mixture of a polycondensate of (3-methyl-4-aminocyclohexyl) methane and a polycondensate of terephthalic acid / 2,2,4-trimethylhexamethylenediamine / 2,4,4-trimethylhexamethylenediamine is used. .
- isophthalic acid / ⁇ , ⁇ -linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms / Metaxylylenediamine polycondensate is particularly preferred.
- the molar ratio of isophthalic acid to the total amount of isophthalic acid and ⁇ , ⁇ -straight chain aliphatic dicarboxylic acid having 4 to 20 carbon atoms is 40 mol from the viewpoint of keeping the heat of crystallization within the above range. % Or more is preferable, and 45 mol% or more is more preferable.
- the upper limit is preferably 60 mol% or less, and more preferably 55 mol% or less.
- the glass transition temperature (Tg) of the amorphous polyamide resin (B) in the present invention is not particularly limited, but is preferably 80 ° C. or higher, more preferably 100 ° C. or higher, and further preferably 120 ° C. °C or more.
- the upper limit of the glass transition temperature is preferably 200 ° C. or lower, more preferably 180 ° C. or lower, further preferably 160 ° C. or lower, and most preferably 145 ° C. or lower, from the viewpoint of suppressing warpage during molding of the resin molded body.
- the glass transition temperature of the amorphous polyamide-based resin (B) is within this range, by combining with the crystalline polyamide-based resin (A), more excellent heat resistance and formability as the resin composition (C), Since surface appearance can be obtained, it is preferable.
- the glass transition temperature (Tg) refers to a crystal melting temperature (melting point Tm) + 20 ° C. from room temperature at a heating rate of 10 ° C./min according to JIS K7121, using a differential scanning calorimeter (DSC). It is a value measured when the temperature is raised to 280 ° C. at a heating rate of 10 ° C./min and again lowered to 30 ° C. at a cooling rate of 10 ° C./min.
- DSC differential scanning calorimeter
- the glass transition temperature (Tg) of the amorphous polyamide resin (B) in the present invention is preferably 30 ° C. or higher than the glass transition temperature (Tg) of the crystalline polyamide resin (A).
- a normal crystalline polymer has a correlation of Tg ⁇ (1/2) Tm to (2/3) Tm (K) as an empirical rule (Colorant, 68 [1], P.45 (1995). )reference). That is, it is known that the crystalline polymer alone increases the Tg and at the same time increases the Tm, resulting in a decrease in fluidity and poor moldability.
- the amorphous polyamide resin (B) having a high Tg is mixed with the crystalline polyamide resin (A), it becomes possible to increase the Tg while maintaining the Tm to some extent as a composition.
- the glass transition temperature (Tg) of the amorphous polyamide-based resin (B) is 50 ° C. or higher than the glass transition temperature (Tg) of the crystalline polyamide-based resin (A).
- the relative viscosity of the crystalline polyamide resin (A) and the amorphous polyamide resin (B) used in the present invention is not particularly limited, but the temperature is 25% using 96 mass% concentrated sulfuric acid as a solvent.
- the relative viscosity measured at a temperature of 1 g / dl at 1 ° C. is preferably in the range of 1.5 to 5.0. If it is this range, since it is excellent in balance, such as take-off property after melt-kneading, mechanical strength, and moldability, it is preferable. For these reasons, the relative viscosity is more preferably in the range of 2.0 to 4.0.
- the crystalline polyamide resin (A) and the amorphous polyamide resin (B) used in the present invention can be polymerized by a known method, and commercially available products can be used.
- examples of the polymerization method include the following methods [1] to [6]. Moreover, it can select suitably also in a batch type or a continuous type. [1] A method in which an aqueous solution or a suspension of water of a dicarboxylic acid / diamine salt or a mixture thereof is heated and polymerized while maintaining a molten state (thermal melt polymerization method).
- [2] A method of increasing the degree of polymerization while maintaining the solid state of the polyamide obtained by the hot melt polymerization method at a temperature below the melting point (hot melt polymerization / solid phase polymerization method).
- [3] A method in which an aqueous solution or a suspension of water of a dicarboxylic acid / diamine salt or a mixture thereof is heated and the precipitated prepolymer is melted again with an extruder such as a kneader to increase the degree of polymerization (prepolymer / extrusion). Polymerization method).
- [4] A method in which an aqueous solution or a suspension of water of a dicarboxylic acid / diamine salt or a mixture thereof is heated, and the degree of polymerization is increased while maintaining the solid state of the precipitated prepolymer at a temperature below the melting point of the polyamide ( Prepolymer / solid phase polymerization method).
- Prepolymer / solid phase polymerization method A method in which the dicarboxylic acid / diamine salt or a mixture thereof is polymerized in one step while maintaining the solid state (one-step solid phase polymerization method).
- [6] A method of polymerizing by using a dicarboxylic acid halide equivalent to dicarboxylic acid and a diamine (solution method).
- the resin composition (C) in the present invention contains the crystalline polyamide resin (A) and the amorphous polyamide resin (B).
- the relationship between Tg and Tm deviates from the above empirical rule. It is possible to confirm that it is the resin composition (C) of the invention.
- the fact that it is a mixture of a crystalline polyamide resin (A) and an amorphous polyamide resin (B) confirms the structural analysis by a nuclear magnetic resonance apparatus (NMR) and the mixed state of the resin composition with an electron microscope. It is possible to confirm by doing.
- NMR nuclear magnetic resonance apparatus
- the heat of crystallization ( ⁇ Hc) measured at a cooling rate of 10 ° C./min in the differential scanning calorimetry of the resin composition (C) is 5 to 60 J / g. If the amount of crystallization heat ( ⁇ Hc) is within this range, it is preferable because of excellent balance between the formability as a material for a three-dimensional printer and the heat resistance of a resin molded article formed using the material.
- the lower limit of the crystallization heat amount of the resin composition (C) is more preferably 10 J / g or more, further preferably 20 J / g or more, and 35 J / g or more. Is particularly preferred.
- the upper limit of the crystallization heat amount of the resin composition (C) is more preferably 58 J / g or less, further preferably 55 J / g, and more preferably 50 J / g. It is particularly preferred that it is g or less.
- the heat of crystal fusion ( ⁇ Hm) measured at a heating rate of 10 ° C./min is 10 J / from the viewpoint of the heat resistance of the molded resin molded body. g or more, preferably 20 J / g or more, and more preferably 30 J / g or more. Further, the heat of crystal fusion ( ⁇ Hm) is preferably 60 J / g or less, more preferably 58 J / g or less, and 55 J / g or less from the viewpoint of formability as a material for a three-dimensional printer. More preferably it is.
- the crystallization heat quantity when a plurality of crystallization temperatures (Tc) are developed in the temperature lowering process is the total value.
- the crystallization temperature is preferably one.
- the heat of crystallization when a plurality of crystal melting heat temperatures (Tm) are expressed in the temperature rising process is a total value.
- the polyamide-based three-dimensional printer material of the present invention preferably has a crystallization heat amount of less than 10 J / g when the temperature is increased again at a heating rate of 10 ° C./min using a differential scanning calorimeter (DSC). More preferably, it is less than 1 J / g, and still more preferably 0 J / g. That is, the polyamide-based three-dimensional printer material of the present invention does not show a crystallization temperature in the reheating process of 10 ° C./min, that is, the crystallization is sufficiently completed in the cooling process of 10 ° C./min. Is preferred. Thereby, the step of crystallizing by heat treatment after modeling can be omitted. In addition, when crystallization is not completed during modeling, it is preferable to promote crystallization by heat processing.
- DSC differential scanning calorimeter
- the crystallization heat amount is preferably adjusted by a mixing mass ratio of the crystalline polyamide resin (A) and the amorphous polyamide resin (B). Specifically, when the total amount of the crystalline polyamide resin (A) and the amorphous polyamide resin (B) is 100 parts by mass, the compounding amount of the crystalline polyamide resin (A) is 99 to 1 mass. Part of the amorphous polyamide-based resin (B) is preferably 1 to 99 parts by mass.
- the compounding amount of the crystalline polyamide-based resin (A) is more preferably 40 parts by mass or more, further preferably 50 parts by mass or more, and particularly preferably 55 parts by mass or more.
- the upper limit of the compounding amount of the crystalline polyamide-based resin (A) is more preferably 95 parts by mass or less, still more preferably 90 parts by mass or less, and particularly preferably 85 parts by mass or less.
- the difference (Tm ⁇ Tc) between the crystal melting temperature (melting point Tm) and the crystallization temperature (Tc) in the differential scanning calorimetry of the resin composition (C) is preferably 30 ° C. to 90 ° C. More preferably, the temperature is 30 ° C to 60 ° C. If the difference (Tm ⁇ Tc) is within this range, the crystallization rate is moderately slow, the adhesion between the layers is ensured when producing a resin molded body with a three-dimensional printer, and the warpage during molding is suppressed, It is preferable because poor appearance of molding, such as stringing, is suppressed and the formability is excellent.
- the difference (Tm ⁇ Tc) is within this range, the resin molded body molded by the three-dimensional printer is appropriately crystallized, or the crystallization is easily completed by heat treatment after the modeling, and the heat resistance of the resin molded body is increased. It is preferable because it is excellent. Therefore, the difference is more preferably 35 ° C. to 55 ° C., and particularly preferably 38 ° C. to 55 ° C.
- the crystallization temperature (Tc) was raised from room temperature to the crystal melting temperature (melting point Tm) + 20 ° C. at a heating rate of 10 ° C./min using a differential scanning calorimeter and held at the temperature for 1 minute. It is a value measured when the temperature is lowered to 30 ° C. at a cooling rate of 10 ° C./min.
- the difference (Tm ⁇ Tc) between the crystal melting temperature (melting point Tm) and the crystallization temperature (Tc) when a plurality of crystal melting temperatures (melting point Tm) and crystallization temperature (Tc) are expressed. Is calculated using the crystal melting temperature (melting point Tm) and the crystallization temperature (Tc) having the largest amount of heat (the amount of heat of crystal melting, the amount of heat of crystallization).
- the resin composition (C) in the present invention may contain other components to the extent that the effects of the present invention are not impaired.
- Other components include polymers other than polyamide-based resins, heat-resistant agents, ultraviolet absorbers, light stabilizers, antioxidants, antistatic agents, lubricants, slip agents, crystal nucleating agents, tackifiers, and sealability improvers. , Antifogging agents, mold release agents, plasticizers, pigments, dyes, fragrances, flame retardants, organic particles, inorganic particles and reinforcing materials.
- polymer other than the polyamide resin examples include, for example, acrylonitrile-butadiene-styrene resin (ABS resin), polylactic acid (PLA resin), polyurethane resin, polyolefin resin, polyester resin, polystyrene resin, and the like.
- ABS resin acrylonitrile-butadiene-styrene resin
- PLA resin polylactic acid
- polyurethane resin polyolefin resin
- polyester resin polystyrene resin
- polystyrene resin examples include resins, acrylic resins, polycarbonate resins, polyvinyl chloride resins, silicone resins, various rubbers, and elastomers.
- organic particles include acrylic resin particles, melamine resin particles, silicone resin particles, polystyrene resin particles, and the like.
- inorganic particles include silica, alumina, kaolin, titanium dioxide, calcium carbonate, magnesium carbonate, zinc carbonate, calcium stearate, magnesium stearate, zinc stearate and the like.
- the reinforcing material include inorganic fillers and inorganic fibers.
- the inorganic filler include calcium carbonate, zinc carbonate, magnesium oxide, calcium silicate, sodium aluminate, calcium aluminate, sodium aluminosilicate, magnesium silicate, potassium titanate, glass balloon, glass flake, glass powder, Silicon carbide, silicon nitride, boron nitride, gypsum, calcined kaolin, zinc oxide, antimony trioxide, zeolite, hydrotalcite, wollastonite, silica, talc, metal powder, alumina, graphite, carbon black, carbon nanotube, etc. It is done.
- Specific examples of the inorganic fiber include glass cut fiber, glass milled fiber, glass fiber, gypsum whisker, metal fiber, metal whisker, ceramic whisker, carbon fiber, and cellulose nanofiber.
- the polyamide-based three-dimensional printer material of the present invention is manufactured using a resin composition (C) obtained by mixing the crystalline polyamide-based resin (A) and the amorphous polyamide-based resin (B). .
- the mixing method of the composition is not particularly limited, and a known method such as a melt kneading apparatus such as a single screw extruder, a multi-screw extruder, a Banbury mixer, a kneader, or a roll mill can be used.
- a co-directional twin-screw extruder from the viewpoint of dispersibility and miscibility of each component.
- the polyamide-based three-dimensional printer material is excellent in dispersibility and miscibility because unevenness in the amount of extrusion can be suppressed during filament production, which will be described later, and the accuracy and roundness of the filament diameter can be increased.
- the melt-kneading apparatus is an extruder, as long as it is an apparatus that can melt-knead the crystalline polyamide-based resin (A) and the amorphous polyamide-based resin (B).
- Any of Banbury mixers, kneaders, roll mills and the like may be used, but it is preferable to use an extruder from the viewpoint that continuous production is possible and that many types of raw materials can be added in separate feeds. .
- the ratio (L / D) of the screw length (L) to the screw diameter (D) of the extruder is not particularly limited, but the crystalline polyamide resin (A) and the amorphous From the viewpoint of the dispersibility of the water-soluble polyamide resin (B) with respect to each other, 20 to 80 is preferable, 25 to 70 is more preferable, 30 to 60 is more preferable, and 35 to 50 is particularly preferable.
- the extruder may be a single-screw extruder, a twin-screw extruder, a multi-screw extruder, or a combination of these two-screw / single-screw composite type extruders. Any of these composite extruders can be used, but the operability and cleaning during operation are easy, and the dispersibility of the crystalline polyamide resin (A) and the amorphous polyamide resin (B) with respect to each other From the point that heat resistance, mechanical characteristics, etc. can improve, a twin screw extruder is preferable.
- an extrusion having a plurality of screws of two or more axes such as a twin screw extruder, a multi screw extruder, a twin screw / single screw combined type extruder, etc.
- the screw structure may be either a non-engagement type or an engagement type, but an engagement type is preferred from the viewpoint of good dispersibility.
- an extrusion having a plurality of screws of two or more axes such as a twin screw extruder, a multi screw extruder, a twin screw / single screw combined type extruder, etc.
- the rotation direction of each screw may be either the same direction or a different direction.
- the residence time is preferably 30 to 300 seconds. Furthermore, the retention time is 45 to 250 seconds because the crystalline polyamide resin (A) and the amorphous polyamide resin (B) can be sufficiently kneaded and dispersed, and the decomposition of the polyamide resin can be suppressed. More preferably, it is 60 to 200 seconds, more preferably 60 to 180 seconds.
- the residence time refers to the time from when the raw material is charged until it is melt-kneaded and taken out as a resin composition.
- the shear rate is preferably 10 to 1500 seconds- 1 .
- the shear rate is 30 to 30%. more preferably 1300 sec -1, more preferably from 50 to 1100 sec -1, more preferably more 70 to 1000 seconds -1, particularly preferably 90 to 800 seconds -1, and most preferably 110 to 600 seconds -1.
- the shear rate is a velocity gradient per unit time.
- the screw rotation speed of the melt-kneading apparatus is not particularly limited, but is preferably 10 to 500 rpm from the viewpoint of suppressing an increase in the resin temperature due to shearing heat generation. 30 to 350 rpm is more preferable, and 50 to 300 rpm is more preferable.
- a resin composition having a stable and good color tone can be obtained, so that an inert gas such as nitrogen is introduced or melt-kneaded under reduced pressure conditions. It is preferable.
- the content of the resin composition (C) in the polyamide-based three-dimensional printer material of the present invention is 50 to 100% by mass from the viewpoint of the balance between the formability and heat resistance, the adhesion between layers, and the like. It is preferably 80 to 100% by mass. More preferably, the polyamide-based three-dimensional printer material of the present invention comprises a resin composition (C).
- the polyamide-based three-dimensional printer material of the present invention may contain components other than the resin composition (C) to the extent that the effects of the present invention are not impaired.
- Components other than the resin composition (C) include polymers other than polyamide-based resins, heat-resistant agents, ultraviolet absorbers, light stabilizers, antioxidants, antistatic agents, lubricants, slip agents, crystal nucleating agents, and tackifiers.
- the water content of the polyamide-based three-dimensional printer material of the present invention is preferably 2.5% by mass or less.
- the moisture content is more preferably 2.0% by mass or less, further preferably 1.5% by mass or less, and particularly preferably 1.0% by mass or less.
- the moisture content may be 0.3% by mass or more, or 0.6% by mass or more. If it is this range, since foaming and smoke generation are few at the time of extrusion, and dimensional stability, mechanical strength, etc. are stabilized, it is preferable. This property is measured by the Karl Fischer method.
- the polyamide-based three-dimensional printer material of the present invention is a packaging material (aluminum bag, vapor deposition film, glass container, etc.) that is dried after manufacturing and also has a moisture-proof property, as will be described later. It is preferable to store in
- the filament for hot melt lamination type three-dimensional printer of the present invention (hereinafter sometimes simply referred to as “three-dimensional printer filament”) is manufactured using the above-mentioned polyamide-based three-dimensional printer material.
- the method for producing the filament for a three-dimensional printer of the present invention is not particularly limited, but a method or a resin composition in which the above-mentioned polyamide-based three-dimensional printer material is usually molded by a known molding method such as extrusion molding. The method of making a filament as it is at the time of manufacture of is mentioned.
- the temperature condition is appropriately adjusted depending on the flow characteristics and molding processability of the resin composition to be used, but is usually 150 to 350 ° C., preferably 170. ⁇ 300 ° C.
- the diameter of the filament for the three-dimensional printer of the present invention depends on the specifications of the system used for molding the resin molding by the hot melt lamination method, but is usually 1.0 mm or more, preferably 1.5 mm or more, more preferably 1
- the upper limit is generally 5.0 mm or less, preferably 4.0 mm or less, more preferably 3.5 mm or less, and particularly preferably 3.0 mm or less.
- the accuracy of the diameter is preferably within an error of ⁇ 5% with respect to an arbitrary measurement point of the filament from the viewpoint of the stability of the raw material supply.
- the filament for a three-dimensional printer of the present invention preferably has a standard deviation in diameter of 0.07 mm or less, particularly preferably 0.06 mm or less.
- the filament for a three-dimensional printer of the present invention preferably has a roundness measured by the method described in the section of Examples described later of 0.93 or more, particularly preferably 0.95 or more. .
- the upper limit of roundness is 1.0.
- the filament for a three-dimensional printer has a small standard deviation in diameter and high roundness, discharge irregularity during molding is suppressed, and a molded body excellent in appearance and surface properties is stably manufactured. be able to.
- a filament for a three-dimensional printer that satisfies such standard deviation and roundness can be manufactured relatively easily.
- the three-dimensional printer filament is stably stored, and the three-dimensional printer filament is stably supplied to the three-dimensional printer.
- the filament for a three-dimensional printer of the present invention is hermetically packaged as a wound body wound around a bobbin, or the wound body is a cartridge for mounting a three-dimensional printer (hereinafter simply referred to as “cartridge”). Is preferably stored from the viewpoints of long-term storage, stable feeding, protection from environmental factors such as moisture, and prevention of twisting.
- the cartridge examples include a wound body wound around a bobbin and a structure in which a moisture-proof material or a moisture-absorbing material is used inside and at least a portion other than an orifice portion for feeding out a filament for a three-dimensional printer is sealed.
- a wound body in which a filament for a three-dimensional printer is wound around a bobbin, or a cartridge including the wound body is installed in or around the three-dimensional printer, and the three-dimensional printer filament is always three-dimensionally formed from the cartridge during molding. Continue to be introduced into the printer.
- a resin molded body is obtained by molding with a three-dimensional printer using the filament for a three-dimensional printer of the present invention.
- the molding method using a three-dimensional printer include a hot melt lamination method (FDM method), a powder sintering method, an ink jet method, and an optical modeling method (SLA method).
- the filament for a three-dimensional printer of the present invention can be suitably used for the hot melt lamination method and the powder sintering method, and is particularly preferably used for the hot melt lamination method.
- the hot melt lamination method will be described as an example.
- a three-dimensional printer generally has a chamber, and a raw material supply unit such as a heatable base, an extrusion head installed in a gantry structure, a heating melter, a filament guide, and a filament cartridge installation unit is provided in the chamber. I have. In some three-dimensional printers, an extrusion head and a heating / melting device are integrated.
- the extrusion head can be arbitrarily moved on the XY plane of the base by being installed in the gantry structure.
- the base is a platform for constructing the desired 3D object and support material, etc., and it is possible to obtain adhesiveness to the laminate by heating and heat insulation, and to improve the dimensional stability by using the resulting resin molded body as the desired 3D object It is preferable that the specification can be adjusted.
- adhesive paste may be apply
- Examples of the sheet having good adhesion to the laminate include a sheet having fine irregularities on the surface, such as an inorganic fiber sheet, and a sheet made of the same kind of resin as the laminate. Note that at least one of the extrusion head and the base is usually movable in the Z-axis direction perpendicular to the XY plane.
- the filament for a three-dimensional printer is fed out from the raw material supply unit, sent to the extrusion head by a pair of opposed rollers or gears, heated and melted by the extrusion head, and extruded from the tip nozzle.
- the extrusion head feeds the raw material onto the substrate while moving its position, and deposits the layers.
- the laminated deposit is taken out from the substrate, and the resin molding can be obtained as a desired three-dimensional object by peeling off the support material or the like as necessary, or by cutting off the excess part. .
- the means for continuously supplying the raw material to the extrusion head includes a method of feeding and supplying filaments or fibers, a method of supplying powder or liquid from a tank or the like via a quantitative feeder, and plasticizing pellets or granules with an extruder or the like.
- An example is a method of extruding and supplying the product.
- the method of feeding and supplying the filament that is, the method of feeding and supplying the filament for the three-dimensional printer of the present invention described above is most preferable.
- the filament When supplying a filament to a three-dimensional printer, the filament is generally engaged with a driving roll such as a nip roll or a gear roll and supplied to the extrusion head while being pulled.
- a driving roll such as a nip roll or a gear roll
- a minute uneven shape is transferred on the surface of the filament, or the frictional resistance with the engaging portion is reduced.
- an inorganic additive, a spreading agent, a pressure-sensitive adhesive, rubber or the like for increasing the size.
- the temperature for obtaining fluidity suitable for extrusion is usually about 190 to 300 ° C., which is a temperature that can be set by an ordinary three-dimensional printer.
- the temperature of the heating extrusion head is usually 290 ° C. or lower, preferably 200 to 280 ° C.
- the base temperature is usually 120 ° C. or lower to stably produce the resin molded body. be able to.
- the temperature (discharge temperature) of the molten resin discharged from the extrusion head is preferably 180 ° C. or higher, more preferably 190 ° C. or higher, and on the other hand, preferably 300 ° C. or lower, and 290 ° C. or lower. It is more preferable that the temperature is 280 ° C. or lower. It is preferable for the temperature of the molten resin to be equal to or higher than the lower limit value, since it is preferable for extruding a resin having high heat resistance, and it is possible to discharge at a high speed, which is preferable because the molding efficiency tends to be improved.
- the temperature of the molten resin is not more than the above upper limit value, it is easy to prevent the occurrence of problems such as thermal decomposition, burning, yellowing, smoke generation, odor, and stickiness of the resin, and generally the molten resin called stringing is stretched thinly. It is also preferable from the viewpoint of preventing a broken piece or a lump of excess resin called “dama” from adhering to the modeled object and deteriorating the appearance.
- the molten resin discharged from the extrusion head is preferably discharged in the form of a strand having a diameter of 0.01 to 1.0 mm, more preferably 0.02 to 0.5 mm. It is preferable that the molten resin is discharged in such a shape because the CAD model tends to have good reproducibility.
- the filament for a three-dimensional printer of the present invention has good adhesion between the resin strand discharged first and the resin strand discharged thereon.
- the filament for a three-dimensional printer of the present invention has a high roundness of the diameter, uneven discharge during molding can be suppressed, and a molded article excellent in appearance and surface properties can be stably produced.
- the filament for a three-dimensional printer according to the present invention has a small standard deviation in diameter and high roundness, and also has an appropriate crystallization speed and a high breaking strain, so that stringing is suppressed, and the appearance and surface properties. It is possible to stably produce a molded article excellent in the above.
- the resin When a molded body is made while laminating strand-like resin discharged from an extrusion head by a three-dimensional printer, the resin may adhere to the nozzle portion of the extrusion head, and the adhered resin is colored by heat and becomes black. It may become a foreign object (black spot or black stripe). And, such foreign matters are mixed in the molded body, which may cause problems such as not only deterioration of appearance but also damage of the molded product.
- the filament for a three-dimensional printer of the present invention is excellent in heat resistance, and even if resin adheres to the nozzle portion, it is difficult to cause coloration due to heat, so that a molded article having an excellent appearance can be stably produced.
- crystallization may be promoted or completed by heat treatment after shaping, depending on the application to be used.
- the resin molded body of the present invention is excellent in surface appearance, heat resistance, durability and the like.
- the resin molded body of the present invention is excellent in surface appearance, heat resistance, durability and the like.
- the distance between the four corners of the sample and the horizontal plane when the sample was removed from the modeling base and placed on the horizontal plane was measured, and the average value of the obtained values was taken as the amount of warpage.
- the sample that could be manufactured and the amount of warpage was less than 0.1 mm was designated as “AA”, and the sample that was able to be produced and the amount of warpage was from 0.1 mm to less than 2 mm was designated as “A”.
- the manufacture was completed but the warp was 2 mm or more, or the warp was large and peeled off from the substrate during the manufacture, the manufacture was not completed and was evaluated as “B”.
- Interlayer adhesion was evaluated by measuring tensile strength according to JIS K 7161.
- a dumbbell-shaped sample having a sample length of 75 mm, a width of 10 mm, and a thickness of 5 mm was manufactured according to the manufacturing conditions described in Examples described later.
- the sample for evaluation was manufactured from the filaments described in Examples and Comparative Examples described later using a three-dimensional printer with the sample length direction as the Z-axis direction (stacking direction).
- AA when the initial chuck distance is 45 mm, the speed is 50 mm / min, and the tensile strength at 23 ° C. is 10 MPa or more, “A” when the tensile strength is 1 MPa or more and less than 10 MPa, the tensile strength is less than 1 MPa, or The case where a dumbbell-shaped sample which can be tested was not obtained was evaluated as “B”.
- a cup-shaped resin molded body (three-dimensional structure) having an opening on the upper side as shown in FIG. 1 was manufactured according to the manufacturing conditions described in the examples described later.
- the sample for evaluation was manufactured from the filaments described in Examples and Comparative Examples described later using a three-dimensional printer with the height direction of the cup-shaped resin molded body as the Z-axis direction (lamination direction).
- the produced resin molded body was heat-treated at a glass transition temperature (Tg) + 30 ° C. for 12 hours. Thereafter, the resin molded body was allowed to stand with the opening facing upward, and after applying a load of 0.01 MPa from the top for 1 minute at a crystal melting temperature (melting point Tm) -30 ° C. The height of was measured. And the case where the height after applying a load was 95% or more with respect to the height (40 mm) before applying the load was evaluated as “A”, and the case where it was less than 95% was evaluated as “B”.
- Example 1 ⁇ Production of resin composition (C) and material for polyamide-based three-dimensional printer>
- the crystalline polyamide resin (A-1) and the amorphous polyamide resin (B-1) were previously dried at 90 ° C. for 24 hours, so that the water content of each raw material was 0.1% by mass or less.
- 80 parts by mass of the crystalline polyamide-based resin (A-1) and 20 parts by mass of the amorphous polyamide-based resin (B-1) are blended, and the same-direction biaxial kneader ( ⁇ 26 mm) (Labotech Engineering)
- the kneading conditions were a cylinder set temperature of 250 ° C., a rotation speed of 150 rpm, and a discharge of 15 kg / h.
- Various evaluations were performed on the obtained three-dimensional printer material, and the results are shown in Table 1.
- the resin composition (C-1) obtained above was introduced into a same-direction biaxial kneading extruder ( ⁇ 15 mm) to produce a filament.
- the kneading conditions were as follows: the set temperature was 250 ° C., the discharge rate was 1.0 kg / hr, the resin composition was extruded from a die diameter of 3 mm, taken through a water bath at 40 ° C. and taken up at 5 m / min.
- the resulting filament had a cross-sectional diameter in the range of 1.65 mm to 1.90 mm.
- Various evaluations were performed on the obtained filaments, and the results are shown in Table 1.
- Manufacturing conditions were a printing speed of 60 mm / second, an internal filling rate of 100%, a modeling atmosphere temperature of 40 ° C., a base temperature of 60 ° C., and a discharge temperature of 250 ° C.
- the molten resin was discharged from the extrusion head in the form of a strand having a diameter of 0.4 mm.
- the warp, interlayer adhesion and heat resistance of the obtained resin molded body were evaluated. The results are shown in Table 1.
- Example 2 In Example 1, in the production of the resin composition (C), the compounding amount of the crystalline polyamide resin (A-1) was 65 parts by mass, and the compounding amount of the amorphous polyamide resin (B-1) was 35 masses. Except having changed into the part, manufacture and evaluation of a resin composition, manufacture and evaluation of a filament, and manufacture and evaluation of a resin molding were performed similarly to Example 1. The evaluation results are shown in Table 1.
- Example 3 In Example 1, in the production of the resin composition (C), the crystalline polyamide resin (A-1) was changed to the crystalline polyamide resin (A-2), and the kneading temperature during production of the resin composition and filaments The resin composition was manufactured and evaluated, the filament was manufactured and evaluated, and the resin molded product was manufactured and evaluated in the same manner as in Example 1 except that the discharge temperature during the manufacturing of the resin molded body was 280 ° C. The evaluation results are shown in Table 1.
- Example 4 In Example 1, in the production of the resin composition (C), the compounding amount of the crystalline polyamide resin (A-1) was changed to 60 parts by mass, and the amorphous polyamide resin (B-1) was changed to amorphous. The production and evaluation of a resin composition, the manufacture and evaluation of a filament, the manufacture and evaluation of a resin molding, and the same as in Example 1 except that the amount was changed to a conductive polyamide resin (B-2) and the blending amount was 40 parts by mass. Evaluation was performed. The evaluation results are shown in Table 1.
- Example 5 In Example 2, when the resin molded body was manufactured, the resin composition was manufactured and evaluated in the same manner as in Example 2, except that the modeling atmosphere temperature was changed to 50 ° C. and the base temperature was changed to 90 ° C. Evaluation, production and evaluation of resin moldings were performed. The evaluation results are shown in Table 1.
- Example 6 In Example 1, in the production of the resin composition (C), the compounding amount of the crystalline polyamide resin (A-1) was changed to 60 parts by mass, and the amorphous polyamide resin (B-1) was changed to amorphous. The production and evaluation of a resin composition, the manufacture and evaluation of a filament, the manufacture and evaluation of a resin molded body, as in Example 1, except that the amount was changed to a conductive polyamide resin (B-3) and the blending amount was 40 parts by mass. Evaluation was performed. The evaluation results are shown in Table 1.
- Example 1 the crystalline polyamide resin (A-1) was used under the same conditions as in Example 1 except that the resin composition (C) was not used and only the crystalline polyamide resin (A-1) was used as a raw material. Evaluation, production and evaluation of filaments, and production and evaluation of resin molded bodies were performed. In Comparative Example 1, a large warp was generated during the production of the resin molded body, and only about 10% of the modeling was completed. Therefore, evaluation of interlayer adhesion and heat resistance was performed using this modeled article. The evaluation results are shown in Table 1.
- Example 2 In Example 3, the crystalline polyamide resin (A-2) was used under the same conditions as in Example 1 except that the resin composition (C) was not used and only the crystalline polyamide resin (A-2) was used as a raw material. Evaluation, production and evaluation of filaments, and production and evaluation of resin molded bodies were performed. In Comparative Example 2, since a large warp occurred during the production of the resin molded body, and modeling could be completed only about 10% of the whole, evaluation of interlayer adhesion and heat resistance was performed using this modeled article. The evaluation results are shown in Table 1.
- Example 3 In Example 1, in the production of the resin composition (C), the compounding amount of the crystalline polyamide resin (A-1) was 35 parts by mass, and the compounding amount of the amorphous polyamide resin (B-1) was 65 parts by mass. Except having changed into the part, manufacture and evaluation of a resin composition, manufacture and evaluation of a filament, and manufacture and evaluation of a resin molding were performed similarly to Example 1. The evaluation results are shown in Table 1.
- the polyamide-based three-dimensional printer material containing the resin composition (C) having specific thermal characteristics defined in the present invention is excellent in all evaluations of the three-dimensional printer filament and the resin molded body. This can be confirmed (Examples 1 to 6).
- those not satisfying the elements defined in the present invention can be confirmed to be inferior in any one or more of warpage, interlayer adhesion, and heat resistance in the evaluation of the resin molded body (Comparative Example 1).
- ⁇ 3 Specifically, when the heat of crystallization ( ⁇ Hc) exceeds the range specified in the present invention, warpage and interlayer adhesion are inferior (Comparative Examples 1 and 2), while the heat of crystallization ( ⁇ Hc) is the present invention. If it is less than the range specified in, warpage and interlayer adhesion are good, but it can be confirmed that the heat resistance is poor (Comparative Example 3).
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
また、本発明の目的は、当該ポリアミド系3次元プリンタ用材料を用いた樹脂成形体、巻回体、及び熱溶解積層型3次元プリンタ装着用カートリッジを提供することにある。
<1>樹脂組成物(C)を含有するポリアミド系3次元プリンタ用材料であって、
前記樹脂組成物(C)は結晶性ポリアミド系樹脂(A)と非晶性ポリアミド系樹脂(B)を含有し、前記樹脂組成物(C)の示差走査熱量測定における結晶化熱量が5~60J/gである、ポリアミド系3次元プリンタ用材料。
<2>前記樹脂組成物(C)の示差走査熱量測定における結晶化熱量が20~60J/gである、<1>に記載のポリアミド系3次元プリンタ用材料。
<3>前記結晶性ポリアミド系樹脂(A)がポリアミド6、ポリアミド66、ポリアミドMXD6、ポリアミド9T、ポリアミド10Tおよびこれらの共重合ポリアミドから選ばれる1種あるいは2種以上を含有する、<1>又は<2>に記載のポリアミド系3次元プリンタ用材料。
<4>前記非晶性ポリアミド系樹脂(B)の示差走査熱量測定における結晶化熱量が5J/g未満である、<1>~<3>のいずれか1つに記載のポリアミド系3次元プリンタ用材料。
<5>前記非晶性ポリアミド系樹脂(B)のガラス転移温度(Tg)が、前記結晶性ポリアミド系樹脂(A)のガラス転移温度(Tg)よりも30℃以上高い、<1>~<4>のいずれか1つに記載のポリアミド系3次元プリンタ用材料。
<6>前記非晶性ポリアミド系樹脂(B)のガラス転移温度(Tg)が、145℃未満である、<1>~<5>のいずれか1つに記載のポリアミド系3次元プリンタ用材料。
<7>前記樹脂組成物(C)の示差走査熱量測定における結晶融解熱量が10~60J/gである、<1>~<6>のいずれか1つに記載のポリアミド系3次元プリンタ用材料。
<8>前記樹脂組成物(C)の示差走査熱量測定における結晶融解温度(Tm)と結晶化温度(Tc)との差(Tm-Tc)が、30℃~60℃である、<1>~<7>のいずれか1つに記載のポリアミド系3次元プリンタ用材料。
<9><1>~<8>のいずれか1つに記載の3次元プリンタ用材料を含有する、熱溶解積層型3次元プリンタ用フィラメント。
<10><9>に記載の熱溶解積層型3次元プリンタ用フィラメントを用い、3次元プリンタにより成形された、樹脂成形体。
<11><9>に記載の熱溶解積層型3次元プリンタ用フィラメントの巻回体。
<12><11>に記載の巻回体が収納された熱溶解積層型3次元プリンタ装着用カートリッジ。
本発明のポリアミド系3次元プリンタ用材料は、後述する樹脂組成物(C)を含有する。樹脂組成物(C)は、後述する結晶性ポリアミド系樹脂(A)と後述する非晶性ポリアミド系樹脂(B)を含有する。
ここで、結晶性ポリアミド系樹脂(A)としては、特に限定されるものではないが、具体例としては、以下のようなものが挙げられる。すなわち、ポリカプロアミド(ポリアミド6)、ポリヘキサメチレンアジパミド(ポリアミド66)、ポリテトラメチレンアジパミド(ポリアミド46)、ポリヘキサメチレンセバカミド(ポリアミド610)、ポリヘキサメチレンドデカミド(ポリアミド612)、ポリウンデカメチレンアジパミド(ポリアミド116)、ポリビス(4-アミノシクロヘキシル)メタンドデカミド(ポリアミドPACM12)、ポリビス(3-メチル-4アミノシクロヘキシル)メタンドデカミド(ポリアミドジメチルPACM12)、ポリノナメチレンテレフタルアミド(ポリアミド9T)、ポリデカメチレンテレフタルアミド(ポリアミド10T)、ポリウンデカメチレンテレフタルアミド(ポリアミド11T)、ポリウンデカメチレンヘキサヒドロテレフタルアミド(ポリアミド11T(H))、ポリウンデカミド(ポリアミド11)、ポリドデカミド(ポリアミド12)、ポリトリメチルヘキサメチレンテレフタルアミド(ポリアミドTMDT)、ポリヘキサメチレンイソフタルアミド(ポリアミド6I)、ポリヘキサメチレンテレフタル/イソフタルアミド(ポリアミド6T/6I)、ポリメタキシリレンアジパミド(ポリアミドMXD6)及びこれらの共重合物等が挙げられる。該結晶性ポリアミド系樹脂(A)は、1種あるいは2種以上を混合して用いることができる。
ここで、非晶性ポリアミド系樹脂(B)としては、特に限定されるものではないが、示差走査熱量測定における冷却速度10℃/分で測定される結晶化熱量が5J/g未満であることが好ましい。本発明においては、結晶化熱量が0J/gのものがより好ましい。
具体例としては、ジカルボン酸成分として、イソフタル酸を30~70モル%、より好ましくは40~60モル%含む重縮合体であることが好ましい。
ここで、重合方法としては、以下の〔1〕~〔6〕の方法が例示できる。また、バッチ式でも連続式でも適宜選択することができる。
〔1〕ジカルボン酸・ジアミン塩又はその混合物の水溶液若しくは水の懸濁液を加熱し、溶融状態を維持したまま重合させる方法(熱溶融重合法)。
〔2〕熱溶融重合法で得られたポリアミドを融点以下の温度で固体状態を維持したまま重合度を上昇させる方法(熱溶融重合・固相重合法)。
〔3〕ジカルボン酸・ジアミン塩又はその混合物の水溶液若しくは水の懸濁液を加熱し、析出したプレポリマーを更にニーダーなどの押出機で再び溶融して重合度を上昇させる方法(プレポリマー・押出重合法)。
〔4〕ジカルボン酸・ジアミン塩又は、その混合物の水溶液若しくは水の懸濁液を加熱し、析出したプレポリマーを更にポリアミドの融点以下の温度で固体状態を維持したまま重合度を上昇させる方法(プレポリマー・固相重合法)。
〔5〕ジカルボン酸・ジアミン塩又はその混合物を固体状態に維持したまま、一段で重合させる方法(一段固相重合法)。
〔6〕ジカルボン酸と等価なジカルボン酸ハライドとジアミンとを用いて重合させる方法(溶液法)。
本発明における樹脂組成物(C)は、前記結晶性ポリアミド系樹脂(A)と前記非晶性ポリアミド系樹脂(B)を含有する。結晶性ポリアミド系樹脂(A)と非晶性ポリアミド系樹脂(B)の混合物と共重合体(1つの重合体)では、TgとTmの関係が前述した経験則から外れるので、その違いから本発明の樹脂組成物(C)であることを確認することが可能である。また、結晶性ポリアミド系樹脂(A)と非晶性ポリアミド系樹脂(B)の混合物であることは、核磁気共鳴装置(NMR)による構造解析や、樹脂組成物の混合状態を電子顕微鏡で確認すること等で確認することが可能である。
本発明においては、耐衝撃性や柔軟性を付与する場合に、各種ゴム、エラストマーを用いることが好ましい。
無機充填材の具体例としては、炭酸カルシウム、炭酸亜鉛、酸化マグネシウム、ケイ酸カルシウム、アルミン酸ナトリウム、アルミン酸カルシウム、アルミノ珪酸ナトリウム、珪酸マグネシウム、チタン酸カリウム、ガラスバルーン、ガラスフレーク、ガラス粉末、炭化ケイ素、窒化ケイ素、窒化ホウ素、石膏、焼成カオリン、酸化亜鉛、三酸化アンチモン、ゼオライト、ハイドロタルサイト、ワラストナイト、シリカ、タルク、金属粉、アルミナ、グラファイト、カーボンブラック、カーボンナノチューブなどが挙げられる。
無機繊維の具体例としては、ガラスカットファイバー、ガラスミルドファイバー、ガラスファイバー、石膏ウィスカー、金属繊維、金属ウィスカー、セラミックウィスカー、炭素繊維、セルロースナノファイバーなどが挙げられる。
本発明のポリアミド系3次元プリンタ用材料は、上述の結晶性ポリアミド系樹脂(A)と非晶性ポリアミド系樹脂(B)を混合して得られる樹脂組成物(C)を用いて製造される。該組成物の混合方法としては特に制限されるものではないが、公知の方法、例えば単軸押出機、多軸押出機、バンバリーミキサー、ニーダー、ロールミルなどの溶融混練装置を用いることができる。本発明においては、各成分の分散性や混和性などの観点から同方向二軸押出機を用いることが好ましい。ポリアミド系3次元プリンタ用材料が分散性や混和性に優れると、後述するフィラメント製造の際に押出量のムラを抑制でき、フィラメント径の精度や真円度を高めることができるため好ましい。
せん断速度=二面の速度差/二面間の距離
<熱溶解積層型3次元プリンタ用フィラメントの製造方法>
本発明の熱溶解積層型3次元プリンタ用フィラメント(以下、単に「3次元プリンタ用フィラメント」と称することがある。)は、上述のポリアミド系3次元プリンタ用材料を用いて製造される。本発明の3次元プリンタ用フィラメントの製造方法は特に制限されるものではないが、上述のポリアミド系3次元プリンタ用材料を、通常、押出成形等の公知の成形方法により成形する方法や樹脂組成物の製造時にそのままフィラメントとする方法等が挙げられる。例えば、本発明の3次元プリンタ用フィラメントを押出成形により得る場合、その温度条件は、用いる樹脂組成物の流動特性や成形加工性等によって適宜調整されるが、通常150~350℃、好ましくは170~300℃である。
本発明の3次元プリンタ用フィラメントの直径は、熱溶解積層法による樹脂成形体の成形に使用するシステムの仕様に依存するが、通常1.0mm以上、好ましくは1.5mm以上、より好ましくは1.6mm以上、特に好ましくは1.7mm以上であり、一方、上限は通常5.0mm以下、好ましくは4.0mm以下、より好ましくは3.5mm以下、特に好ましくは3.0mm以下である。更に径の精度はフィラメントの任意の測定点に対して±5%以内の誤差に収めることが原料供給の安定性の観点から好ましい。特に、本発明の3次元プリンタ用フィラメントは、径の標準偏差が0.07mm以下であることが好ましく、0.06mm以下であることが特に好ましい。
本発明の3次元プリンタ用フィラメントを用いて3次元プリンタにより樹脂成形体を製造するにあたり、3次元プリンタ用フィラメントを安定に保存すること、及び、3次元プリンタに3次元プリンタ用フィラメントを安定供給することが求められる。そのために、本発明の3次元プリンタ用フィラメントは、ボビンに巻きとった巻回体として密閉包装されている、又は、巻回体が熱溶解積層型3次元プリンタ装着用カートリッジ(以下、単に「カートリッジ」と称することがある。)に収納されていることが、長期保存、安定した繰り出し、湿気等の環境要因からの保護、捩れ防止等の観点から好ましい。カートリッジとしては、ボビンに巻き取った巻回体の他、内部に防湿材または吸湿材を使用し、少なくとも3次元プリンタ用フィラメントを繰り出すオリフィス部以外が密閉されている構造のものが挙げられる。
<樹脂成形体の製造方法>
本発明の樹脂成形体の製造方法においては、本発明の3次元プリンタ用フィラメントを用い、3次元プリンタにより成形することにより樹脂成形体を得る。3次元プリンタによる成形方法としては熱溶解積層法(FDM法)、粉末焼結方式、インクジェット方式、光造形方式(SLA法)などが挙げられる。本発明の3次元プリンタ用フィラメントは、これらの中でも熱溶解積層法や粉末焼結方式に好適に用いることができ、熱溶解積層法に用いることが特に好ましい。以下、熱溶解積層法の場合を例示して説明する。
本発明の樹脂成形体は、表面外観や耐熱性および耐久性などにも優れたものである。用途については特に制限されるものではないが、文房具;玩具;携帯電話やスマートフォン等のカバー;グリップ等の部品;学校教材、家電製品、OA機器の補修部品、自動車、オートバイ、自転車等の各種パーツ;電機・電子機器用資材、農業用資材、園芸用資材、漁業用資材、土木・建築用資材、医療用品等の用途に好適に用いることができる。
(株)パーキンエルマー製の示差走査熱量計、商品名「Pyris1 DSC」を用いて、JIS K7122に準じて、試料約10mgを加熱速度10℃/分で室温から結晶融解温度(融点Tm)+20℃まで昇温し、該温度で1分間保持した後、冷却速度10℃/分で30℃まで降温した時に測定されたサーモグラムから結晶化熱量(ΔHc)(降温過程)および結晶融解熱量(ΔHm)(再昇温過程)を求めた。なお、各値は、少数第二位を四捨五入して記載した。
(株)パーキンエルマー製の示差走査熱量計、商品名「Pyris1 DSC」を用いて、JIS K7121に準じて、試料約10mgを加熱速度10℃/分で室温から結晶融解温度(融点Tm)+20℃まで昇温し、該温度で1分間保持した。その後、冷却速度10℃/分で30℃まで降温し、再度、加熱速度10℃/分で280℃まで昇温した時に測定された各サーモグラムから結晶化温度(Tc)(℃)(降温過程)、結晶融解温度(融点Tm)(℃)(再昇温過程)およびガラス転移温度(Tg)(℃)(再昇温過程)を求めた。なお、各値は、少数第二位を四捨五入して記載した。
<径の真円度>
得られたフィラメントを3cm間隔にて10点、ノギスにて長径と短径を計測し、それぞれの測定点における短径/長径の比率を求めた。測定した10点における短径/長径の比率の平均を真円度とした。比率が1.0に近いほどフィラメントの断面形状が真円に近いことを意味する。
<反り>
評価用サンプルとして、サンプル長さ75mm、幅10mm、厚み5mmのダンベル状サンプルを後述する実施例に記載の製造条件に従って製造した。評価用サンプルは、サンプルの厚さ方向をZ軸方向(積層方向)として、3次元プリンタを用いて、後述する実施例及び比較例に記載のフィラメントから、製造した。
サンプルの製造を完了できかつ反り量が0.1mm未満であったものを「AA」とし、サンプルの製造を完了できかつ反り量が0.1mm以上2mm未満のものを「A」とし、サンプルの製造は完了できたが反りが2mm以上のもの、あるいは反りが大きく製造途中で基盤から剥がれてしまい製造が完了できなかったものを「B」と評価した。
層間接着性は、JIS K 7161に準拠して、引張強度を測定することにより評価した。評価用サンプルとしては、サンプル長さ75mm、幅10mm、厚み5mmのダンベル状サンプルを後述する実施例に記載の製造条件に従って製造した。評価用サンプルは、サンプルの長さ方向をZ軸方向(積層方向)として、3次元プリンタを用いて、後述する実施例及び比較例に記載のフィラメントから製造した。
評価用サンプルとして、図1に示す、上方に開口部を有するカップ形状の樹脂成形体(3次元造形物)を後述する実施例に記載の製造条件に従って製造した。評価用サンプルは、カップ形状の樹脂成形体の高さ方向を、Z軸方向(積層方向)として、3次元プリンタを用いて、後述する実施例及び比較例に記載のフィラメントから製造した。
樹脂成形体の総合評価を、下記基準に従って行った。
A:反り、層間接着性および耐熱性の評価がすべて「A」あるいは「AA」評価であった。
B:反り、層間接着性および耐熱性の評価のうち、いずれか1つ以上が「B」評価であった。
結晶性ポリアミド系樹脂(A-1);ポリアミド6(東レ(株)製、商品名:アミランCM1021FS、密度:1.13g/cm3、Tg:50℃、Tm:222.2℃、Tc:186.6℃、ΔHc:66.1J/g、相対粘度:3.4)
結晶性ポリアミド系樹脂(A-2);ポリアミド66(東レ(株)製、商品名:アミランCM3001-N、密度:1.13g/cm3、Tg:58℃、Tm:264.96℃、Tc:231.23℃、ΔHc:68.2J/g、相対粘度:2.8)
非晶性ポリアミド系樹脂(B-1);(三菱ガス化学(株)製、商品名:MXナイロン#7501、密度:1.21g/cm3、Tg:121.6℃、非晶性(ΔHc:0J/g)、ジアミン成分:メタキシリレンジアミン100モル%、ジカルボン酸成分:アジピン酸50モル%、イソフタル酸50モル%)
非晶性ポリアミド系樹脂(B-2);(ダイセル・エボニック(株)製、商品名:トロガミドT5000、密度:1.12g/cm3、Tg:150℃、非晶性(ΔHc:0J/g)、ジアミン成分:2,2,4-トリメチルヘキサメチレンジアミン100モル%、ジカルボン酸成分:テレフタル酸100モル%)
非晶性ポリアミド系樹脂(B-3);(デュポン社製、商品名:SelarPA3426、密度:1.19g/cm3、Tg:123℃、非晶性(ΔHc:0J/g)、ジアミン成分:ヘキサメチレンジアミン100モル%、ジカルボン酸成分:イソフタル酸70モル%、テレフタル酸30モル%)
<樹脂組成物(C)、ポリアミド系3次元プリンタ用材料の製造>
事前に結晶性ポリアミド系樹脂(A-1)及び非晶性ポリアミド系樹脂(B-1)を90℃で24時間乾燥させて各原料の含水率を0.1質量%以下とした。前記結晶性ポリアミド系樹脂(A-1)80質量部と前記非晶性ポリアミド系樹脂(B-1)を20質量部となるように配合し、同方向二軸混練機(Φ26mm)(ラボテックエンジニアリング社製、商品名LTS26-40、L/D=40mm)を用いて樹脂組成物(C-1)を製造し、これをポリアミド系3次元プリンタ用材料とした。混練条件はシリンダー設定温度250℃、回転数150rpm、吐出15kg/hの条件とした。得られた3次元プリンタ用材料について各種評価を行い、結果を表1に示す。
上記で得られた樹脂組成物(C-1)を、同方向二軸混練押出機(φ15mm)に導入し、フィラメントを製造した。混練条件は、設定温度250℃、吐出量1.0kg/hrとした上で、ダイス径3mmから樹脂組成物を押出し、40℃の水槽を経て引取り装置で5m/minで引取った。得られたフィラメントの断面の直径は1.65mmから1.90mmの範囲であった。得られたフィラメントについて各種評価を行い、結果を表1に示す。
事前に、製造したフィラメントを90℃で24時間乾燥させて含水率を0.1質量%以下とした。熱溶解積層法による押出積層堆積システムとして、マスポータル社製、商品名:Pharaoh XD20を用い、3次元物体として、各種評価用サンプルの製造を行った。
実施例1において、樹脂組成物(C)の製造にあたり、結晶性ポリアミド系樹脂(A-1)の配合量を65質量部、非晶性ポリアミド系樹脂(B-1)の配合量を35質量部に変更した以外は実施例1と同様に樹脂組成物の製造と評価、フィラメントの製造と評価、樹脂成形体の製造と評価を行った。評価結果を表1に示す。
実施例1において、樹脂組成物(C)の製造にあたり、結晶性ポリアミド系樹脂(A-1)を結晶性ポリアミド系樹脂(A-2)に変更し、樹脂組成物およびフィラメント製造時の混練温度および樹脂成形体製造時の吐出温度を280℃にした以外は実施例1と同様に樹脂組成物の製造と評価、フィラメントの製造と評価、樹脂成形体の製造と評価を行った。評価結果を表1に示す。
実施例1において、樹脂組成物(C)の製造にあたり、結晶性ポリアミド系樹脂(A-1)の配合量を60質量部に変更し、非晶性ポリアミド系樹脂(B-1)を非晶性ポリアミド系樹脂(B-2)に変更し、その配合量を40質量部とした以外は実施例1と同様に樹脂組成物の製造と評価、フィラメントの製造と評価、樹脂成形体の製造と評価を行った。評価結果を表1に示す。
実施例2において、樹脂成形体の製造をする際に、造形雰囲気温度を50℃、基盤温度を90℃に変更した以外は実施例2と同様に樹脂組成物の製造と評価、フィラメントの製造と評価、樹脂成形体の製造と評価を行った。評価結果を表1に示す。
実施例1において、樹脂組成物(C)の製造にあたり、結晶性ポリアミド系樹脂(A-1)の配合量を60質量部に変更し、非晶性ポリアミド系樹脂(B-1)を非晶性ポリアミド系樹脂(B-3)に変更し、その配合量を40質量部とした以外は実施例1と同様に樹脂組成物の製造と評価、フィラメントの製造と評価、樹脂成形体の製造と評価を行った。評価結果を表1に示す。
実施例1において、樹脂組成物(C)を用いず、結晶性ポリアミド系樹脂(A-1)のみを原料に用いて実施例1と同様の条件で結晶性ポリアミド系樹脂(A-1)の評価、フィラメントの製造と評価、樹脂成形体の製造と評価を行った。なお、比較例1においては樹脂成形体製造時に大きな反りが発生し造形が全体の1割程度しか完了できなかったため、層間接着性および耐熱性の評価は、この造形物を用いて行った。評価結果を表1に示す。
実施例3において、樹脂組成物(C)を用いず、結晶性ポリアミド系樹脂(A-2)のみを原料に用いて実施例1と同様の条件で結晶性ポリアミド系樹脂(A-2)の評価、フィラメントの製造と評価、樹脂成形体の製造と評価を行った。なお、比較例2においては樹脂成形体製造時に大きな反りが発生し造形が全体の1割程度しか完了できなかったため、層間接着性および耐熱性の評価は、この造形物を用いて行った。評価結果を表1に示す。
実施例1において、樹脂組成物(C)の製造にあたり、結晶性ポリアミド系樹脂(A-1)の配合量を35質量部、非晶性ポリアミド系樹脂(B-1)の配合量を65質量部に変更した以外は実施例1と同様に樹脂組成物の製造と評価、フィラメントの製造と評価、樹脂成形体の製造と評価を行った。評価結果を表1に示す。
Claims (12)
- 樹脂組成物(C)を含有するポリアミド系3次元プリンタ用材料であって、
前記樹脂組成物(C)は結晶性ポリアミド系樹脂(A)と非晶性ポリアミド系樹脂(B)を含有し、前記樹脂組成物(C)の示差走査熱量測定における結晶化熱量が5~60J/gである、ポリアミド系3次元プリンタ用材料。 - 前記樹脂組成物(C)の示差走査熱量測定における結晶化熱量が20~60J/gである、請求項1に記載のポリアミド系3次元プリンタ用材料。
- 前記結晶性ポリアミド系樹脂(A)がポリアミド6、ポリアミド66、ポリアミドMXD6、ポリアミド9T、ポリアミド10Tおよびこれらの共重合ポリアミドから選ばれる1種あるいは2種以上を含有する、請求項1又は2に記載のポリアミド系3次元プリンタ用材料。
- 前記非晶性ポリアミド系樹脂(B)の示差走査熱量測定における結晶化熱量が5J/g未満である、請求項1~3のいずれか1項に記載のポリアミド系3次元プリンタ用材料。
- 前記非晶性ポリアミド系樹脂(B)のガラス転移温度(Tg)が、前記結晶性ポリアミド系樹脂(A)のガラス転移温度(Tg)よりも30℃以上高い、請求項1~4のいずれか1項に記載のポリアミド系3次元プリンタ用材料。
- 前記非晶性ポリアミド系樹脂(B)のガラス転移温度(Tg)が、145℃未満である、請求項1~5のいずれか1項に記載のポリアミド系3次元プリンタ用材料。
- 前記樹脂組成物(C)の示差走査熱量測定における結晶融解熱量が10~60J/gである、請求項1~6のいずれか1項に記載のポリアミド系3次元プリンタ用材料。
- 前記樹脂組成物(C)の示差走査熱量測定における結晶融解温度(Tm)と結晶化温度(Tc)との差(Tm-Tc)が、30℃~60℃である、請求項1~7のいずれか1項に記載のポリアミド系3次元プリンタ用材料。
- 請求項1~8のいずれか1項に記載の3次元プリンタ用材料を含有する、熱溶解積層型3次元プリンタ用フィラメント。
- 請求項9に記載の熱溶解積層型3次元プリンタ用フィラメントを用い、3次元プリンタにより成形された、樹脂成形体。
- 請求項9に記載の熱溶解積層型3次元プリンタ用フィラメントの巻回体。
- 請求項11に記載の巻回体が収納された熱溶解積層型3次元プリンタ装着用カートリッジ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020515589A JP7184079B2 (ja) | 2018-04-26 | 2019-04-25 | ポリアミド系3次元プリンタ用材料 |
CN201980028321.3A CN112105492A (zh) | 2018-04-26 | 2019-04-25 | 聚酰胺系三维打印机用材料 |
EP19793389.8A EP3785882A4 (en) | 2018-04-26 | 2019-04-25 | POLYAMIDE MATERIAL FOR 3D PRINTERS |
US17/078,326 US20210040318A1 (en) | 2018-04-26 | 2020-10-23 | Polyamide-based 3d printer material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018-085201 | 2018-04-26 | ||
JP2018085201 | 2018-04-26 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/078,326 Continuation US20210040318A1 (en) | 2018-04-26 | 2020-10-23 | Polyamide-based 3d printer material |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019208741A1 true WO2019208741A1 (ja) | 2019-10-31 |
Family
ID=68295534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2019/017812 WO2019208741A1 (ja) | 2018-04-26 | 2019-04-25 | ポリアミド系3次元プリンタ用材料 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210040318A1 (ja) |
EP (1) | EP3785882A4 (ja) |
JP (1) | JP7184079B2 (ja) |
CN (1) | CN112105492A (ja) |
WO (1) | WO2019208741A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021231590A1 (en) * | 2020-05-14 | 2021-11-18 | Ascend Performance Materials Operations Llc | Polyamide formulations for improved noise vibration and harshness |
WO2022043345A1 (en) | 2020-08-26 | 2022-03-03 | Basf Se | Polyamide filaments for use in 3d printing |
EP4059697A4 (en) * | 2019-11-12 | 2023-01-11 | Mitsubishi Chemical Corporation | FILAMENTS FOR THREE-DIMENSIONAL MOLDING |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023183553A1 (en) | 2022-03-25 | 2023-09-28 | Solvay Specialty Polymers Usa, Llc | Filament containing a biobased polyamide (pa) polymer and its use for additive manufacturing |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003502184A (ja) | 1999-06-23 | 2003-01-21 | ストラタシス・インコーポレイテッド | 高温模型製作装置 |
JP2003534159A (ja) | 2000-05-19 | 2003-11-18 | ネイダーランゼ、オルガニザティー、ボー、トゥーゲパストナトゥールウェテンシャッペルーク、オンダーツォーク、ティーエヌオー | 改良されたfdm製品、方法、及び装置 |
JP2008194968A (ja) | 2007-02-14 | 2008-08-28 | Imoto Seisakusho:Kk | 高分子材料の直接造形法および直接造形装置 |
JP2010521339A (ja) | 2007-03-14 | 2010-06-24 | ストラタシス,インコーポレイテッド | 改質abs材料を用いて3次元オブジェクトを構築する方法 |
WO2015037574A1 (ja) | 2013-09-11 | 2015-03-19 | 東レ株式会社 | 熱融解積層方式三次元造形用素材および熱融解積層方式3dプリント機器用フィラメント |
JP2016505409A (ja) * | 2012-11-21 | 2016-02-25 | ストラタシス,インコーポレイテッド | ポリアミド消耗材料を用いたアディティブマニュファクチュアリング |
JP2017502852A (ja) * | 2013-11-27 | 2017-01-26 | ストラタシス,インコーポレイテッド | 結晶化速度を制御した三次元パーツのプリント法 |
WO2017153586A1 (en) * | 2016-03-11 | 2017-09-14 | Dsm Ip Assets B.V. | Fused filament printing |
JP6265314B1 (ja) | 2016-07-01 | 2018-01-24 | 宇部興産株式会社 | 熱溶解積層型3次元プリンタ用材料及びそれを用いた熱溶解積層型3次元プリンタ用フィラメント |
JP2018085201A (ja) | 2016-11-22 | 2018-05-31 | 株式会社オートネットワーク技術研究所 | 配線モジュール |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6645412B2 (en) * | 1999-04-20 | 2003-11-11 | Stratasys, Inc. | Process of making a three-dimensional object |
ES2429814T3 (es) * | 2010-03-12 | 2013-11-18 | Ems-Patent Ag | Masa de moldeo de poliamida modificada para resistencia al impacto así como recipiente formado a partir de la misma |
CN105504801B (zh) * | 2015-12-14 | 2018-09-21 | 中广核三角洲(江苏)塑化有限公司 | 一种用于3d打印的高强度低收缩尼龙材料及其制备方法 |
JP6402810B1 (ja) * | 2016-07-22 | 2018-10-10 | 株式会社リコー | 立体造形用樹脂粉末、立体造形物の製造装置、及び立体造形物の製造方法 |
TW201817812A (zh) * | 2016-07-29 | 2018-05-16 | 巴斯夫歐洲公司 | 用於雷射燒結粉末之聚醯胺摻合物 |
TW201821535A (zh) * | 2016-07-29 | 2018-06-16 | 巴斯夫歐洲公司 | 用於雷射燒結粉末之包含增強劑的聚醯胺摻合物 |
JP7088920B2 (ja) * | 2016-10-21 | 2022-06-21 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 融着フィラメント製造のためのフィラメント組成物及びその使用方法 |
-
2019
- 2019-04-25 JP JP2020515589A patent/JP7184079B2/ja active Active
- 2019-04-25 CN CN201980028321.3A patent/CN112105492A/zh active Pending
- 2019-04-25 WO PCT/JP2019/017812 patent/WO2019208741A1/ja active Application Filing
- 2019-04-25 EP EP19793389.8A patent/EP3785882A4/en active Pending
-
2020
- 2020-10-23 US US17/078,326 patent/US20210040318A1/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003502184A (ja) | 1999-06-23 | 2003-01-21 | ストラタシス・インコーポレイテッド | 高温模型製作装置 |
JP2003534159A (ja) | 2000-05-19 | 2003-11-18 | ネイダーランゼ、オルガニザティー、ボー、トゥーゲパストナトゥールウェテンシャッペルーク、オンダーツォーク、ティーエヌオー | 改良されたfdm製品、方法、及び装置 |
JP2008194968A (ja) | 2007-02-14 | 2008-08-28 | Imoto Seisakusho:Kk | 高分子材料の直接造形法および直接造形装置 |
JP2010521339A (ja) | 2007-03-14 | 2010-06-24 | ストラタシス,インコーポレイテッド | 改質abs材料を用いて3次元オブジェクトを構築する方法 |
JP2016505409A (ja) * | 2012-11-21 | 2016-02-25 | ストラタシス,インコーポレイテッド | ポリアミド消耗材料を用いたアディティブマニュファクチュアリング |
WO2015037574A1 (ja) | 2013-09-11 | 2015-03-19 | 東レ株式会社 | 熱融解積層方式三次元造形用素材および熱融解積層方式3dプリント機器用フィラメント |
JP2017502852A (ja) * | 2013-11-27 | 2017-01-26 | ストラタシス,インコーポレイテッド | 結晶化速度を制御した三次元パーツのプリント法 |
WO2017153586A1 (en) * | 2016-03-11 | 2017-09-14 | Dsm Ip Assets B.V. | Fused filament printing |
JP6265314B1 (ja) | 2016-07-01 | 2018-01-24 | 宇部興産株式会社 | 熱溶解積層型3次元プリンタ用材料及びそれを用いた熱溶解積層型3次元プリンタ用フィラメント |
JP2018085201A (ja) | 2016-11-22 | 2018-05-31 | 株式会社オートネットワーク技術研究所 | 配線モジュール |
Non-Patent Citations (1)
Title |
---|
See also references of EP3785882A4 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4059697A4 (en) * | 2019-11-12 | 2023-01-11 | Mitsubishi Chemical Corporation | FILAMENTS FOR THREE-DIMENSIONAL MOLDING |
WO2021231590A1 (en) * | 2020-05-14 | 2021-11-18 | Ascend Performance Materials Operations Llc | Polyamide formulations for improved noise vibration and harshness |
CN115551919A (zh) * | 2020-05-14 | 2022-12-30 | 奥升德功能材料运营有限公司 | 用于改进噪声振动和声振粗糙度的聚酰胺配制剂 |
WO2022043345A1 (en) | 2020-08-26 | 2022-03-03 | Basf Se | Polyamide filaments for use in 3d printing |
Also Published As
Publication number | Publication date |
---|---|
US20210040318A1 (en) | 2021-02-11 |
JPWO2019208741A1 (ja) | 2021-04-22 |
CN112105492A (zh) | 2020-12-18 |
EP3785882A4 (en) | 2021-08-25 |
JP7184079B2 (ja) | 2022-12-06 |
EP3785882A1 (en) | 2021-03-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2019208741A1 (ja) | ポリアミド系3次元プリンタ用材料 | |
DK2532712T3 (en) | polyamide resin | |
JP7262479B2 (ja) | 付加製造組成物 | |
KR20040034605A (ko) | 3차원 모델링을 위한 방법 및 재료 | |
JP7088920B2 (ja) | 融着フィラメント製造のためのフィラメント組成物及びその使用方法 | |
US20210086492A1 (en) | 3d printer material | |
JP6996666B2 (ja) | ポリアミド樹脂組成物の製造方法 | |
WO2019195689A1 (en) | Additive manufacturing compositions | |
JP5400457B2 (ja) | ポリアミド樹脂組成物及び成型体 | |
JP5400456B2 (ja) | ポリアミド樹脂組成物及びそれからなる成型体 | |
JP6687793B1 (ja) | 樹脂組成物及び成形体 | |
JP2011201991A (ja) | ガスインジェクション用ポリアミド樹脂組成物 | |
US20220267593A1 (en) | Filament for three-dimensional printing | |
TW202028355A (zh) | 聚醯胺樹脂組成物、及其製造方法 | |
WO2022138954A1 (ja) | 3次元造形用フィラメント | |
JP2024070634A (ja) | 3次元プリンタ用材料及びこれを用いた樹脂成形体の製造方法 | |
JP2024037465A (ja) | 3次元プリンタ用材料、3次元プリンタ用フィラメント及びその巻回体、3次元プリンタ装着用カートリッジ、並びに、樹脂成形体の製造方法 | |
WO2021066102A1 (ja) | 3次元造形用フィラメント | |
WO2021025161A1 (ja) | 材料押出方式(me方式)3次元プリンタ用フィラメント、樹脂成型体、巻回体、および、3次元プリンタ装着用カートリッジ | |
JP2019044027A (ja) | ポリアミド9tシート | |
JP2023143185A (ja) | 3次元造形用フィラメント | |
WO2023183553A1 (en) | Filament containing a biobased polyamide (pa) polymer and its use for additive manufacturing | |
US20220220303A1 (en) | Resin composition, film, composite material, moving body, and three-dimensional printing material | |
JP2022080968A (ja) | 結晶性樹脂フィラメントを用いた3次元造形物およびその造形方法 | |
JPH0890557A (ja) | 高結晶性ポリシアノアリールエーテルペレットおよびその製造法ならびにその成形法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19793389 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2020515589 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2019793389 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2019793389 Country of ref document: EP Effective date: 20201126 |