Resin composition for material for three dimensional shaping apparatus and filament material

Abstract

To provide a resin composition for a material for an FDM system three dimensional shaping apparatus having excellent heat resistance, dimensional accuracy and shaping stability.SOLUTION: (a) propylene-ethylene copolymers having a melting heat quantity of 50J / g or more and less than 100J / g, (b) homopolypropylenes having a melt flow rate of 30g / 10 minutes or less, (c) propylene-ethylene copolymers having a melting heat quantity of 0J / g or more and less than 50J / g, and (d) ethylene - α - olefin copolymers, the resin composition for a material for a three dimensional shaping apparatus contains 20 parts by mass or more and 50 parts by mass or less of the component (a), 5 parts by mass or more and 20 parts by mass or less of the component (b), 35 parts by mass or more and 60 parts by mass or less of the component (c), and 1 part by mass or more and 10 parts by mass or less of the component (d), wherein a total of the component (a) and the component (b) is 40 parts by mass or more.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a resin composition for a material used in the fabrication of an article using a three-dimensional fabrication apparatus, and a filament material. [Background technology]

[0002] Fused Deposition Modeling (FDM) is a well-known technique for creating three-dimensional objects using a 3D printer or other 3D modeling device. Materials primarily composed of resin are used to create objects using a 3D modeling device. Specifically, filamentous resin is melted with heat to form a molten liquid, which is then applied from the nozzle head of the 3D modeling device based on the modeling data. The applied molten liquid is then cooled and solidified, and this process is repeated to create the desired object.

[0003] Amorphous thermoplastic resins such as acrylonitrile-butadiene-styrene copolymer (ABS) and polylactic acid (PLA) are commonly used as filament materials for FDM 3D modeling. However, these resins have problems such as poor chemical resistance and hinge properties, being heavy, generating odors during modeling, and being susceptible to deterioration due to moisture absorption, limiting their practical applications.

[0004] Therefore, the use of polypropylene resins as filament materials for FDM 3D modeling is being considered. Compared to ABS and PLA, polypropylene resins generally have advantages such as superior chemical resistance and hinge properties, being lightweight, not emitting an odor during modeling, and being less susceptible to deterioration due to moisture absorption.

[0005] For example, Patent Document 1 discloses a polypropylene-based resin composition (Y) for fused deposition modeling, which contains a polypropylene-based resin (X) having a melt flow rate (MFR), a crystallization peak temperature (Tc), and a heat of fusion (ΔHm) within a specific range. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2017-197627 Summary of the Invention [Problem to be solved by the invention]

[0007] Resins used as filament materials for FDM 3D modeling require dimensional accuracy such as low shrinkage and low warpage, adhesion between filament layers, and viscosity characteristics such as MFR and melt tension. However, because polypropylene resins are crystalline, when the molten resin cools and solidifies, the resin shrinks, causing warping and twisting, which can lead to defective models.

[0008] Considering the application of filament materials for FDM-based three-dimensional modeling to a variety of applications, there is a demand for resin compositions for filament materials for FDM-based three-dimensional modeling that have excellent heat resistance, high dimensional accuracy, and high modeling stability.

[0009] An object of one aspect of the present invention is to provide a resin composition for use as a material for an FDM-type three-dimensional modeling apparatus, which has excellent heat resistance, dimensional accuracy, and modeling stability. [Means for solving the problem]

[0010] As a result of intensive research to solve the above-mentioned problems, the present inventors have found for the first time that a resin composition for a material for an FDM-type three-dimensional modeling apparatus having excellent heat resistance, dimensional accuracy, and modeling stability can be realized by blending a propylene-ethylene copolymer having a specific heat of fusion, a homopolypropylene having a specific melt flow rate, and an ethylene-α-olefin copolymer in specific ratios, and have thus completed the present invention. That is, in order to solve the above-mentioned problems, a resin composition for a material for a three-dimensional modeling apparatus according to one aspect of the present invention comprises: (a) a propylene-ethylene copolymer having a heat of fusion of 50 J / g or more and less than 100 J / g; (b) homopolypropylene having a melt flow rate of 30 g / 10 min or less; (c) a propylene-ethylene copolymer having a heat of fusion of 0 J / g or more and less than 50 J / g; and (d) ethylene-α-olefin copolymer, Contains When the total amount of the component (a), the component (b), the component (c), and the component (d) is 100 parts by mass, 20 parts by mass or more and 50 parts by mass or less of the component (a), The component (b) is 5 parts by mass or more and 20 parts by mass or less The component (c) is 35 parts by mass or more and 60 parts by mass or less, and The (d) component is 1 part by mass or more and 10 parts by mass or less, Including, The total amount of the component (a) and the component (b) is 40 parts by mass or more. [Effects of the Invention]

[0011] According to one aspect of the present invention, it is possible to realize a resin composition for use as a material for an FDM-type three-dimensional modeling apparatus, which has excellent heat resistance, dimensional accuracy, and modeling stability. DETAILED DESCRIPTION OF THE INVENTION

[0012] One embodiment of the present invention will be described in detail below. In this specification, unless otherwise specified, the expression "A to B" representing a range of numerical values ​​means "A or more and B or less."

[0013] [1. Resin composition for material for stereolithography equipment] A resin composition for a material for a three-dimensional object modeling apparatus according to one aspect of the present invention is a resin composition for a material for use in modeling an article using a three-dimensional object modeling apparatus, (a) a propylene-ethylene copolymer having a heat of fusion of 50 J / g or more and less than 100 J / g; (b) homopolypropylene having a melt flow rate of 30 g / 10 min or less; (c) a propylene-ethylene copolymer having a heat of fusion of 0 J / g or more and less than 50 J / g; and (d) ethylene-α-olefin copolymer, Contains When the total amount of the component (a), the component (b), the component (c), and the component (d) is 100 parts by mass, 20 parts by mass or more and 50 parts by mass or less of the component (a), The component (b) is 5 parts by mass or more and 20 parts by mass or less The component (c) is 35 parts by mass or more and 60 parts by mass or less, and The (d) component is 1 part by mass or more and 10 parts by mass or less, Including, The total amount of the components (a) and (b) is 40 parts by mass or more. In this specification, the "resin composition for use as a material for a three-dimensional modeling apparatus" may be abbreviated simply as the "resin composition."

[0014] The resin composition according to one embodiment of the present invention contains the components (a) to (d) in specific amounts, and therefore is a resin composition for use as a material for a three-dimensional modeling device, having excellent heat resistance, dimensional accuracy, and modeling stability.

[0015] Each component contained in the resin composition will be described in detail below.

[0016] <Component (a)> A propylene-ethylene copolymer (hereinafter referred to as "component (a)") having a heat of fusion of 50 J / g or more and less than 100 J / g contributes to improving the molding stability of a resin composition according to one embodiment of the present invention.

[0017] Component (a) contains structural units derived from propylene and structural units derived from ethylene. From the viewpoint of heat resistance, the mass fraction of the structural units derived from propylene in component (a) is preferably 92 mass% or more. Furthermore, from the viewpoint of suppressing warpage by reducing crystallinity, the mass fraction of the structural units derived from propylene in component (a) is preferably 99 mass% or less.

[0018] The mass fraction of structural units derived from ethylene in component (a) is preferably 1% by mass or more from the viewpoint of suppressing warpage by reducing crystallinity, and the mass fraction of structural units derived from ethylene in component (a) is preferably 8% by mass or less from the viewpoint of heat resistance.

[0019] The mass fraction of structural units derived from propylene and the mass fraction of structural units derived from ethylene in component (a) can be determined by analyzing component (a) by nuclear magnetic resonance analysis (NMR).

[0020] The component (a) can be any of a random copolymer, a block copolymer, a graft copolymer, an alternating copolymer, etc. These can be used alone or in combination of two or more.

[0021] From the viewpoint of molding stability due to the promotion of solidification during molding, the heat of fusion (ΔHm) of component (a) is preferably 55 J / g or more, more preferably 60 J / g or more, and even more preferably 65 J / g or more. Also, from the viewpoint of dimensional stabilization by suppressing warpage that occurs during molding (hereinafter, warpage suppression), the heat of fusion (ΔHm) (J / g) of component (a) is preferably 95 J / g or less, more preferably 90 J / g or less, and even more preferably 80 J / g or less.

[0022] In this specification, the term "heat of fusion (ΔHm)" refers to the heat of fusion (ΔHm) in the range of 10 to 200°C, measured using a differential scanning calorimeter (DSC) after first raising the temperature to 200°C to erase the thermal history, then lowering the temperature to 50°C at a rate of 10°C / min, and then raising the temperature again to 200°C at a rate of 10°C / min. The "heat of fusion (ΔHm)" can be confirmed by the method described in the examples below.

[0023] The component (a) may have a heat of fusion (ΔHm) of 50 J / g or more and less than 100 J / g, and other physical properties are not particularly limited. However, it is preferable that the component (a) further has the following melt flow rate (MFR), crystallization peak temperature, and melting peak temperature.

[0024] From the viewpoint of achieving uniform extrusion rate and shaping stability, the MFR of component (a) is preferably 10 g / 10 min or more, more preferably 25 g / 10 min or more. From the viewpoint of preventing melt sagging of the resin and stabilizing the shape, the MFR of component (a) is preferably 50 g / 10 min or less, more preferably 35 g / 10 min or less.

[0025] From the viewpoint of suppressing warpage, the crystallization peak temperature of the component (a) is preferably not more than 125° C., and more preferably not more than 115° C. There is no particular lower limit to the crystallization peak temperature of the component (a).

[0026] From the viewpoint of heat resistance during practical use of the shaped article (hereinafter referred to as heat resistance), the melting peak temperature of component (a) is preferably 140° C. or higher, and more preferably 150° C. or higher. There is no particular upper limit to the melting peak temperature of component (a).

[0027] In this specification, "melt flow rate" means MFR measured at 230°C under a load of 2.16 kg in accordance with Method A of JIS K7210:1999. The "melt flow rate" can be confirmed by the method described in the examples below.

[0028] In this specification, the term "crystallization peak temperature" refers to the temperature at the top of the exothermic peak when measured using a differential scanning calorimeter (DSC) after first raising the temperature to 200°C to erase the thermal history and then lowering the temperature to 50°C at a rate of 10°C / min. The "crystallization peak temperature" can be confirmed by the method described in the examples below.

[0029] In this specification, the term "melting peak temperature" refers to the temperature at the top of the endothermic peak measured using a differential scanning calorimeter (DSC) after first raising the temperature to 200°C to erase the thermal history, then lowering the temperature to 50°C at a rate of 10°C / min, and then raising the temperature again to 200°C at a rate of 10°C / min. The "melting peak temperature" can be confirmed by the method described in the Examples below.

[0030] ((a) Manufacturing method of component) Component (a) can be produced by a known method and is also commercially available. The method for producing component (a) is not particularly limited, and it can be produced by a known polymerization method using a known polymerization catalyst.

[0031] Examples of the polymerization catalyst include metallocene catalysts and Ziegler-Natta catalysts, which are commonly used in the production of propylene-ethylene copolymers.

[0032] Examples of the polymerization method include gas phase polymerization and solution polymerization, which are generally used in the production of propylene-ethylene copolymers.

[0033] ((a) Content of ingredients) In one embodiment of the resin composition of the present invention, when the total amount of the components (a) to (d) is 100 parts by mass, the content of the component (a) is 20 parts by mass or more and 50 parts by mass or less, thereby making it possible to realize a resin composition having excellent heat resistance, dimensional accuracy, and molding stability.

[0034] From the viewpoint of molding stability such as solidification speed and uniform discharge amount, the content of component (a) is preferably 25 parts by mass or more, and more preferably 30 parts by mass or more, when the total amount of components (a) to (d) is 100 parts by mass. Furthermore, from the viewpoint of suppressing warpage, the content of component (a) is preferably 45 parts by mass or less, and more preferably 40 parts by mass or less, when the total amount of components (a) to (d) is 100 parts by mass.

[0035] <(b) Component> The homopolypropylene having an MFR of 30 g / 10 min or less (hereinafter referred to as "component (b)") contributes to improving the heat resistance of the resin composition according to one embodiment of the present invention.

[0036] The MFR of component (b) is preferably 0.1 g / 10 min or more, more preferably 0.4 g / 10 min or more, from the viewpoint of shaping stability due to uniform discharge amount, and is preferably 20 g / 10 min or less, more preferably 15 g / 10 min or less, from the viewpoint of shape stabilization by preventing melt sagging of the resin.

[0037] In this specification, homopolypropylene having an MFR of 3 g / 10 min or more and 30 g / 10 min or less is particularly referred to as "medium MFR homopolypropylene," and homopolypropylene having an MFR of less than 3 g / 10 min is particularly referred to as "low MFR homopolypropylene."

[0038] The component (b) is not particularly limited as long as it has an MFR of 30 g / 10 min or less, but it preferably has the following crystallization peak temperature, heat of fusion (ΔHm), and melting peak temperature.

[0039] From the viewpoint of suppressing warpage, the crystallization peak temperature of the component (b) is preferably not more than 120° C., more preferably not more than 110° C. There is no particular lower limit to the crystallization peak temperature of the component (b).

[0040] From the viewpoint of suppressing warpage, the heat of fusion (ΔHm) of component (b) is preferably 100 J / g or less, more preferably 90 J / g or less. There is no particular upper limit to the heat of fusion (ΔHm) of component (b).

[0041] From the viewpoint of heat resistance, the melting peak temperature of component (b) is preferably at least 155° C., more preferably at least 160° C. There is no particular upper limit to the melting peak temperature of component (b).

[0042] (b) Manufacturing method of the component Component (b) can be produced by a known method and is also commercially available. The method for producing component (b) is not particularly limited, and it can be produced by a known polymerization method using a known polymerization catalyst.

[0043] Examples of the polymerization catalyst include metallocene catalysts and Ziegler-Natta catalysts that are commonly used in the production of polypropylene.

[0044] Examples of the polymerization method include gas phase polymerization and solution polymerization, which are generally used in the production of polypropylene.

[0045] ((b) Content of ingredients) In one embodiment of the resin composition of the present invention, when the total amount of the components (a) to (d) is 100 parts by mass, the content of the component (b) is 5 parts by mass or more and 20 parts by mass or less, thereby making it possible to realize a resin composition having excellent heat resistance, dimensional accuracy, and molding stability.

[0046] From the viewpoint of heat resistance, the content of component (b) is preferably 8 parts by mass or more when the total amount of components (a) to (d) is 100 parts by mass. Also, from the viewpoint of improving dimensional accuracy by reducing warpage, the content of component (b) is preferably 10 parts by mass or less when the total amount of components (a) to (d) is 100 parts by mass.

[0047] Furthermore, in a resin composition according to one embodiment of the present invention, when the total amount of the components (a) to (d) is taken as 100 parts by mass, the total amount of the components (a) and (b) is 40 parts by mass or more, thereby making it possible to realize a resin composition having excellent heat resistance, dimensional accuracy, and molding stability.

[0048] From the viewpoints of heat resistance and molding stability, the total content of components (a) and (b) is preferably 45 parts by mass or more, and more preferably 55 parts by mass or more, when the total amount of components (a) to (d) is 100 parts by mass. Also, from the viewpoint of warpage suppression, the total content of components (a) and (b) is preferably 70 parts by mass or less, and more preferably 60 parts by mass or less, when the total amount of components (a) to (d) is 100 parts by mass.

[0049] <(c) component> In the resin composition according to one embodiment of the present invention, the propylene-ethylene copolymer (hereinafter referred to as "component (c)") having a heat of fusion of 0 J / g or more and less than 50 J / g contributes to improving the effect of suppressing warpage of the resin composition according to one embodiment of the present invention during molding.

[0050] Component (c) contains structural units derived from propylene and structural units derived from ethylene. From the viewpoint of heat resistance, the mass fraction of the structural units derived from propylene in component (c) is preferably 82 mass% or more. Furthermore, from the viewpoint of suppressing warpage by reducing crystallinity, the mass fraction of the structural units derived from propylene in component (c) is preferably 91 mass% or less.

[0051] The mass fraction of structural units derived from ethylene in component (c) is preferably 9% by mass or more from the viewpoint of suppressing warpage by reducing crystallinity, and the mass fraction of structural units derived from ethylene in component (c) is preferably 18% by mass or less from the viewpoint of heat resistance.

[0052] The mass fraction of structural units derived from propylene and the mass fraction of structural units derived from ethylene in component (c) can be determined by analyzing component (c) by NMR.

[0053] The component (c) can be any of a random copolymer, a block copolymer, a graft copolymer, an alternating copolymer, etc. These can be used alone or in combination of two or more.

[0054] The heat of fusion (ΔHm) (J / g) of the component (c) is preferably 10 J / g or less, and more preferably 1 J / g or less, from the viewpoint of suppressing warpage.

[0055] The component (c) is not particularly limited as long as it has a heat of fusion (ΔHm) of 0 J / g or more and less than 50 J / g, but other physical properties are not particularly limited. However, it is preferable that the component (c) further has the following MFR and melting peak temperature.

[0056] The MFR of component (c) is preferably 5 g / 10 min or more, more preferably 10 g / 10 min or more, from the viewpoint of shaping stability due to a uniform discharge amount, and is preferably 30 g / 10 min or less, more preferably 20 g / 10 min or less, from the viewpoint of shape stabilization by preventing melt sagging of the resin.

[0057] From the viewpoint of heat resistance, the melting peak temperature of component (c) is preferably at least 80° C., more preferably at least 100° C. There is no particular upper limit to the melting peak temperature of component (c).

[0058] (c) Manufacturing method of the component Component (c) can be produced by a known method and is also commercially available. The method for producing component (c) is not particularly limited, and it can be produced by a known polymerization method using a known polymerization catalyst.

[0059] The polymerization catalyst may, for example, be a metallocene catalyst.

[0060] The polymerization method may be, for example, a gas phase polymerization method.

[0061] ((c) Content of ingredients) In one embodiment of the resin composition of the present invention, when the total amount of the components (a) to (d) is 100 parts by mass, the content of the component (c) is 35 parts by mass or more and 60 parts by mass or less, thereby making it possible to realize a resin composition having excellent heat resistance, dimensional accuracy, and molding stability.

[0062] From the viewpoint of suppressing warpage, the content of component (c) is preferably 45 parts by mass or more, and more preferably 50 parts by mass or more, when the total amount of components (a) to (d) is 100 parts by mass. Also, from the viewpoint of shape stability due to promotion of solidification during shaping, the content of component (c) is preferably 55 parts by mass or less, when the total amount of components (a) to (d) is 100 parts by mass.

[0063] <(d) component> The ethylene-α-olefin copolymer (hereinafter referred to as "component (d)") contributes to improving the molding stability of the resin composition according to one embodiment of the present invention.

[0064] Component (d) contains structural units derived from ethylene and structural units derived from an α-olefin. Examples of the α-olefin include α-olefins having 4 to 12 carbon atoms, and preferably α-olefins having 4 to 8 carbon atoms. Specific examples of such α-olefins include 1-butene, isobutene, 1-pentene, 1-hexene, 2-methyl-1-pentene, 3-methyl-1-pentene, 4-methyl-1-pentene, 1-octene, 1-decene, and 1-dodecene, and preferably 1-butene, 1-hexene, and 1-octene.

[0065] In the component (d), the α-olefins may be used alone or in combination of two or more.

[0066] The component (d) can be any of a random copolymer, a block copolymer, a graft copolymer, an alternating copolymer, etc. These can be used alone or in combination of two or more.

[0067] The physical properties of component (d) are not particularly limited, but it is preferable that the component (d) has the following crystallization peak temperature, heat of fusion (ΔHm), and melting peak temperature.

[0068] From the viewpoint of suppressing warpage, the crystallization peak temperature of the component (d) is preferably not more than 50° C., more preferably not more than 40° C. There is no particular lower limit for the crystallization peak temperature of the component (d).

[0069] From the viewpoint of suppressing warpage, the heat of fusion (ΔHm) of component (d) is preferably 50 J / g or less, more preferably 40 J / g or less. There is no particular upper limit to the heat of fusion (ΔHm) of component (d).

[0070] From the viewpoint of heat resistance, the melting peak temperature of component (d) is preferably at least 40° C., more preferably at least 50° C. There is no particular upper limit to the melting peak temperature of component (d).

[0071] (d) Manufacturing method of the component Component (d) can be produced by known methods and is also commercially available. The method for producing component (d) is not particularly limited, and it can be produced by known polymerization methods using known polymerization catalysts.

[0072] Examples of the polymerization catalyst include a Ziegler-Natta catalyst system consisting of a vanadium compound, an organoaluminum compound, and a halogenated ester compound, and a catalyst system (so-called metallocene catalyst system) that combines a metallocene compound in which at least one group having a cyclopentadienyl anion skeleton is coordinated to a titanium atom, a zirconium atom, or a hafnium atom with an alumoxane or a boron compound.

[0073] The polymerization method may be, for example, a gas phase polymerization method.

[0074] ((d) Content of ingredients) In one embodiment of the resin composition of the present invention, when the total amount of the components (a) to (d) is 100 parts by mass, the content of component (d) is 1 part by mass or more and 10 parts by mass or less, thereby making it possible to realize a resin composition having excellent heat resistance, dimensional accuracy, and molding stability.

[0075] From the viewpoint of modeling stability that does not cause ejection defects, the content of component (d) is preferably 5 parts by mass or more when the total amount of components (a) to (d) is 100 parts by mass. Also, from the viewpoint of modeling stability that does not cause ejection defects, the content of component (d) is preferably less than 10 parts by mass when the total amount of components (a) to (d) is 100 parts by mass.

[0076] <(e) component> The resin composition according to one aspect of the present invention preferably further contains a filler (hereinafter referred to as "component (e)") in addition to the components (a) to (c) described above. Component (e) contributes to improving the mechanical properties of the resin composition according to one aspect of the present invention. Furthermore, it contributes to further improving dimensional accuracy by reducing warpage.

[0077] Examples of component (e) include conventionally known fillers used to improve the mechanical properties of resin compositions, such as talc, glass fiber, mica, and wollastonite. These may be used alone or in combination of two or more. From the viewpoint of dimensional stability due to the effect of reducing shrinkage, component (e) is preferably at least one selected from the group consisting of talc, mica, and wollastonite, and more preferably talc.

[0078] It is known that when a filler such as talc is used in the hope of improving the mechanical properties of a polypropylene-based resin, the adhesion between the filament layers decreases as the amount of filler added to the polypropylene-based resin increases, making it more likely that layer peeling will occur after molding. In contrast, the resin composition according to one embodiment of the present invention contains specific amounts of the above-mentioned components (a) to (d), and therefore can improve the mechanical properties of the resin composition without impairing the adhesion between the filament layers due to the addition of the filler.

[0079] ((e) Content of ingredients) In a resin composition according to one embodiment of the present invention, when the total amount of components (a) to (e) is taken as 100 parts by mass, the content of component (e) is 100 parts by mass or more and 180 parts by mass or less. This allows the resin composition according to one embodiment of the present invention to be a resin composition for use as a material for a three-dimensional modeling device, having excellent heat resistance, dimensional accuracy, modeling stability, and mechanical properties.

[0080] From the viewpoint of further improving the mechanical properties of the resin composition according to one embodiment of the present invention, the content of component (e) is preferably 150 parts by mass or more, and more preferably 160 parts by mass or more, when the total amount of components (a) to (d) is taken as 100 parts by mass. Also, from the viewpoint of adhesiveness between filaments, the content of component (e) is preferably 180 parts by mass or less, and more preferably 170 parts by mass or less, when the total amount of components (a) to (d) is taken as 100 parts by mass.

[0081] <Other ingredients> The resin composition according to one aspect of the present invention may further contain additives as other components as needed, in addition to the components described above, within the scope of the object of the present invention.

[0082] Examples of additives include desiccants, plasticizers, fillers, reinforcing agents, stabilizers, dispersants, antioxidants, flame retardants, foaming agents, antistatic agents, lubricants, colorants, pigments, various polymer modifiers, etc. By adding any of the above additives, improvements in the modeling stability, modeling accuracy, mechanical properties, etc. of the resulting three-dimensionally molded object can be expected.

[0083] The content of each additive in the resin composition according to one embodiment of the present invention may be adjusted as appropriate from the viewpoint of the performance expression of each additive. Furthermore, from the viewpoint of reducing the influence on the physical properties of the resulting three-dimensionally shaped object, the total content of the additives in the resin composition according to one embodiment of the present invention is about 0.005 to 0.5 parts by mass when the total amount of the components (a) to (d) and the optional component (e) is taken as 100 parts by mass, but may be adjusted as appropriate depending on the desired performance.

[0084] Among these additives, antioxidants are often blended to stabilize the resin composition according to one embodiment of the present invention. Furthermore, blending an antioxidant is preferred because it is expected to prevent deterioration of the resulting three-dimensionally shaped object over time. The antioxidant may be selected appropriately from conventionally known antioxidants, such as primary antioxidants typified by phenolic antioxidants and secondary antioxidants typified by phosphorus-based antioxidants, depending on the desired performance.

[0085] From the viewpoint of sufficiently preventing oxidation of the resin composition according to one embodiment of the present invention, the content of the antioxidant is preferably 0.05 parts by mass or more, more preferably 0.1 parts by mass or more, when the total amount of the components (a) to (d) and the optional component (e) is taken as 100 parts by mass. Furthermore, from the viewpoint of reducing the influence of the antioxidant on the physical properties of the resulting three-dimensionally shaped object, the content of the antioxidant is preferably 3 parts by mass or less, when the total amount of the components (a) to (d) and the optional component (e) is taken as 100 parts by mass.

[0086] Lubricants are often added to improve the moldability of the resin composition according to one embodiment of the present invention. Examples of lubricants include metal stearates and fatty acid esters.

[0087] From the viewpoint of sufficiently improving the moldability of the resin composition according to one embodiment of the present invention, the content of the lubricant is preferably 0.1 parts by mass or more, more preferably 0.2 parts by mass or more, when the total amount of the components (a) to (d) and the optional component (e) is taken as 100 parts by mass. Furthermore, from the viewpoint of reducing the influence of the lubricant on the physical properties of the resulting three-dimensionally shaped object, the content of the lubricant is preferably 3 parts by mass or less, when the total amount of the components (a) to (d) and the optional component (e) is taken as 100 parts by mass.

[0088] <Applications of resin composition> The resin composition according to one embodiment of the present invention has excellent heat resistance, dimensional accuracy, and molding stability because it contains specific amounts of the components (a) to (d). Furthermore, the resin composition according to one embodiment of the present invention further contains the component (e) in addition to the components (a) to (d), and therefore has excellent mechanical properties in addition to the excellent heat resistance, dimensional accuracy, and molding stability.

[0089] Taking advantage of the above-mentioned characteristics, the resin composition according to one embodiment of the present invention can be suitably used as a resin composition for a material for a three-dimensional modeling device, specifically for the modeling of articles using a three-dimensional modeling device based on the fused deposition modeling (FDM) method.

[0090] Here, the fused deposition modeling (FDM) method refers to a general method of heating and melting thermoplastic resin, extruding it from the tip of a nozzle, and layering it to create a three-dimensional object, and is also sometimes called the fused deposition modeling method or the fused deposition modeling method.

[0091] An FDM-type three-dimensional modeling device refers to a device in general that has a means (nozzle head) that heats and melts thermoplastic resin based on input three-dimensional shape data and ejects it at any position, and a means (bed) that deposits the ejected resin composition.

[0092] The material for a three-dimensional object shaping apparatus may be, for example, a filament material obtained by molding the resin composition according to one embodiment of the present invention into a filament shape. The filament material will be described in detail later, but the filament material may be a single-layer filament or a multi-layer filament having a core-sheath structure.

[0093] The resin composition according to one embodiment of the present invention, which contains the components (a) to (e), has excellent mechanical properties and can therefore be suitably used as a resin composition for the core of a multilayer filament having a core-sheath structure. In contrast, the resin composition according to one embodiment of the present invention, which contains the components (a) to (d) but does not contain the component (e), can be suitably used as a resin composition for the sheath of a multilayer filament having a core-sheath structure.

[0094] <Properties of Resin Composition> The resin composition according to one aspect of the present invention is preferably thermoplastic.

[0095] (Thermal properties of resin composition) From the viewpoint of heat resistance, the higher the melting peak temperature of the resin composition according to one embodiment of the present invention, the better, and it is more preferably 150° C. or higher, even more preferably higher than 150° C., even more preferably 155° C. or higher, and even more preferably 160° C. or higher. Furthermore, from the viewpoint of meltability in a nozzle during molding, the melting peak temperature of the resin composition according to one embodiment of the present invention is preferably 190° C. or lower, more preferably 180° C. or lower.

[0096] Resin compositions having a melting peak temperature of 150°C or higher have sufficiently high heat resistance, and therefore such resin compositions can be suitably used as resin compositions for use as materials for three-dimensional modeling devices to be used in the modeling of articles using an FDM-type three-dimensional modeling device.

[0097] The thermal properties of the resin composition according to one embodiment of the present invention are not particularly limited as long as it has a melting peak temperature of 150°C or higher, but it is preferable that it further has the following MFR, crystallization peak temperature, and heat of fusion (ΔHm).

[0098] The MFR of the resin composition according to one embodiment of the present invention is preferably 10 g / 10 min or more from the viewpoint of molding stability due to a uniform discharge amount, and is preferably 35 g / 10 min or less from the viewpoint of shape stabilization by preventing melt sagging of the resin.

[0099] The crystallization peak temperature of the resin composition according to one embodiment of the present invention is preferably 130° C. or lower, more preferably 110° C. or lower, from the viewpoint of suppressing warpage.

[0100] The heat of fusion (ΔHm) of the resin composition according to one aspect of the present invention is preferably 40 J / g or less, and more preferably 25 J / g or less, from the viewpoint of suppressing warpage.

[0101] (Shaping stability of resin composition) From the viewpoint of modeling stability, it is preferable that the resin composition according to one embodiment of the present invention is stably modeled when modeling is performed using a fused deposition modeling 3D printer with the nozzle temperature set to 250° C. Here, stably modeling means that the filament is fed into the nozzle as set and discharged uniformly.

[0102] (Dimensional Accuracy of Resin Composition) From the viewpoint of dimensional accuracy, the resin composition according to one embodiment of the present invention is preferable in that the height of warping in a three-dimensional object obtained by molding the resin composition according to one embodiment of the present invention is as low as possible, and it is more preferable that the height of warping is 1.0 mm or less, and even more preferable that the height of warping is 0.5 mm or less.

[0103] The warpage height refers to the height of warpage measured after a molded object produced using a fused deposition modeling 3D printer with a nozzle temperature set to 250°C is left standing in the air at 23°C for 48 hours. The warpage height can be confirmed by the method described in the examples below.

[0104] Resin compositions with a warpage height of 1.0 mm or less have sufficiently high dimensional accuracy, and therefore such resin compositions can be suitably used as resin compositions for use as materials for three-dimensional modeling devices to be used in the modeling of articles using an FDM-type three-dimensional modeling device.

[0105] (Mechanical properties of resin composition) From the viewpoint of mechanical properties, the larger the flexural modulus of a test piece obtained by injection molding a resin composition according to one embodiment of the present invention, the better, and the flexural modulus is more preferably 800 MPa or more, and even more preferably 1000 MPa or more.

[0106] The flexural modulus refers to the flexural modulus measured by subjecting a test piece prepared by injection molding using an injection molding machine at a cylinder temperature of 180 to 210°C and a mold temperature of 38°C to a bending test in accordance with JIS K7171:2023. The flexural modulus can be confirmed by the method described in the examples below.

[0107] A resin composition having a flexural modulus of 800 MPa or more has sufficiently high rigidity, and therefore such a resin composition can be said to have sufficiently high mechanical properties.

[0108] The mechanical properties of the resin composition according to one embodiment of the present invention are not particularly limited as long as the flexural modulus is 800 MPa or more, but it is preferable that the resin composition further has the following flexural strength.

[0109] <Form of Resin Composition> The form of the resin composition according to one aspect of the present invention is not particularly limited, and may be any form such as powder, granules, pellets, etc. In terms of ease of extrusion molding, the resin composition according to one aspect of the present invention is preferably in the form of pellets.

[0110] A resin composition according to one embodiment of the present invention can be used as a material for an FDM-type 3D modeling device. Pellets of the resin composition according to one embodiment of the present invention may be used as the material for the 3D modeling device, or pellets of the resin composition according to one embodiment of the present invention may be formed into filaments using a known extrusion molding machine and used as the material for the 3D modeling device. The form of the material for the 3D modeling device may be selected appropriately depending on the supply structure of the material for the 3D modeling device.

[0111] Furthermore, when pellets of the resin composition according to one embodiment of the present invention are molded into filaments using a known extrusion molding machine, the filaments may be single-layer filaments or multi-layer filaments having a core-sheath structure.

[0112] <Method of manufacturing resin composition> The resin composition according to one embodiment of the present invention can be obtained by mixing the components (a) to (d) and, optionally, the component (e) using a Henschel mixer (trade name), a V blender, a ribbon blender, a tumbler blender, or the like. Furthermore, if necessary, after the mixing step, the resin composition can also be obtained by a method of melt-kneading using a kneader such as a single-screw extruder, a multi-screw extruder, a kneader, or a Banbury mixer. The components may be mixed and melt-kneaded simultaneously, or some of the components may be made into a masterbatch and then mixed and melt-kneaded.

[0113] [2. Filament Material] A filament material according to one embodiment of the present invention is a filament material for use in forming articles using a three-dimensional modeling device, and is made of the resin composition for a material for a three-dimensional modeling device according to one embodiment of the present invention described above.

[0114] The filament material according to one embodiment of the present invention is made of the resin composition according to the embodiment of the present invention described above, and can therefore be suitably used as a material for a three-dimensional modeling device for forming articles using an FDM-type three-dimensional modeling device, taking advantage of the above-mentioned characteristics.

[0115] By subjecting the filament material according to one aspect of the present invention to FDM 3D modeling, a 3D object having excellent heat resistance, dimensional accuracy, and modeling stability can be manufactured. Therefore, the filament material according to one aspect of the present invention can be used as a filament material for a 3D modeling apparatus, and more specifically, as a filament material for an FDM 3D modeling apparatus.

[0116] The resin composition according to one embodiment of the present invention in the filament material according to one embodiment of the present invention has already been explained, so the explanation will not be repeated here.

[0117] In this specification, the term "filament material" refers to a material obtained by molding the resin composition according to one embodiment of the present invention into a filament shape such as a string or thread.

[0118] The diameter of the filament material according to one embodiment of the present invention is not particularly limited and may be appropriately selected depending on the purpose. The diameter of the filament material according to one embodiment of the present invention is, for example, preferably 0.5 mm or more and 10 mm or less, and more preferably 1.5 mm or more and 3.5 mm or less.

[0119] <Manufacturing method of filament material> The filament material according to one embodiment of the present invention can be produced by molding the resin composition according to one embodiment of the present invention into a filament shape using a conventionally known extrusion molding method.

[0120] [3. Three-dimensional object] The present invention also encompasses a three-dimensional object produced by using the material for a three-dimensional object production apparatus according to one aspect of the present invention as a material. Next, the three-dimensional object according to one aspect of the present invention will be described.

[0121] The three-dimensional object according to one aspect of the present invention is formed using the material for a three-dimensional modeling apparatus according to one aspect of the present invention. The material for a three-dimensional modeling apparatus according to one aspect of the present invention used in the three-dimensional object according to one aspect of the present invention has already been described, and therefore will not be described again here.

[0122] The three-dimensional object according to one aspect of the present invention has excellent heat resistance, dimensional accuracy, and molding stability.

[0123] The three-dimensional object is not particularly limited, and examples thereof include automobile parts, home appliance parts, housing equipment parts, food containers, and the like.

[0124] <Manufacturing method for three-dimensional objects> In the method for manufacturing a three-dimensional object according to one aspect of the present invention, a three-dimensional object can be manufactured using a conventionally known three-dimensional modeling apparatus, using the material for a three-dimensional modeling apparatus according to one aspect of the present invention as a material. Here, the material for a three-dimensional modeling apparatus according to one aspect of the present invention may be used as a model material, a support material, or both a model material and a support material.

[0125] A known FDM-type 3D modeling device (e.g., a 3D printer) is preferably used as the 3D modeling device. This 3D modeling device transports a filament material for a 3D modeling device according to one embodiment of the present invention toward a nozzle head at a predetermined speed, where the material for a 3D modeling device is heated and melted and then ejected at a desired position. The ejected material for a 3D modeling device is deposited on a bed. After this series of operations is completed, the bed descends, and by repeating the same operations, the material for a 3D modeling device ejected from the nozzle head is stacked, making it possible to produce a 3D object.

[0126] The heating temperature of the nozzle head of the 3D modeling apparatus can be determined as appropriate without particular limitation as long as it can melt the material for the 3D modeling apparatus according to one aspect of the present invention. The heating temperature of the nozzle head of the 3D modeling apparatus is preferably a temperature not exceeding the decomposition temperature of the resin composition according to one aspect of the present invention.

[0127] The bed of the 3D modeling apparatus may be provided with a heating means to prevent the material for the 3D modeling apparatus according to an embodiment of the present invention from peeling off during modeling. The heating temperature can be determined appropriately without particular limitations as long as the material for the 3D modeling apparatus according to an embodiment of the present invention does not peel off from the bed during modeling or the 3D model does not melt and deform on the bed. The heating temperature of the bed of the 3D modeling apparatus is preferably a temperature equal to or higher than the glass transition temperature of the resin composition according to an embodiment of the present invention.

[0128] 〔summary〕 A resin composition for a material for a three-dimensional object shaping apparatus according to a first aspect of the present invention is a resin composition for a material for use in shaping an article using a three-dimensional object shaping apparatus, (a) a propylene-ethylene copolymer having a heat of fusion of 50 J / g or more and less than 100 J / g; (b) homopolypropylene having a melt flow rate of 30 g / 10 min or less; (c) a propylene-ethylene copolymer having a heat of fusion of 0 J / g or more and less than 50 J / g; and (d) ethylene-α-olefin copolymer, Contains When the total amount of the component (a), the component (b), the component (c), and the component (d) is 100 parts by mass, 20 parts by mass or more and 50 parts by mass or less of the component (a), The component (b) is 5 parts by mass or more and 20 parts by mass or less The component (c) is 35 parts by mass or more and 60 parts by mass or less, and The (d) component is 1 part by mass or more and 10 parts by mass or less, Including, The total amount of the component (a) and the component (b) is 40 parts by mass or more.

[0129] The resin composition for a material for a three-dimensional modeling device according to aspect 2 of the present invention may contain, in the above-mentioned aspect 1, 100 parts by mass or more and 180 parts by mass or less of (e) filler when the total amount of the (a) component, the (b) component, the (c) component, and the (d) component is 100 parts by mass.

[0130] In the resin composition for a three-dimensional object modeling apparatus according to Aspect 3 of the present invention, in Aspect 1 or 2, the content of the component (b) is preferably 5 parts by mass or more and 10 parts by mass or less.

[0131] The resin composition for a material for a three-dimensional object shaping apparatus according to a fourth aspect of the present invention may be configured such that the melting peak temperature is higher than 150°C in any one of the first to third aspects.

[0132] The filament material according to aspect 4 of the present invention is a filament material for use in forming an article using a three-dimensional modeling device, and is a filament material made from a resin composition for a material for a three-dimensional modeling device described in any one of aspects 1 to 4 above. [Example]

[0133] The present invention will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to these examples.

[0134] [Raw materials for resin composition] In the following examples and comparative examples, the following materials were used.

[0135] <Component (a): a propylene-ethylene copolymer having a heat of fusion of 50 J / g or more and less than 100 J / g> Propylene-ethylene copolymer (a)-1: trade name "PM940M", manufactured by SunAllomer Co., Ltd. Propylene-ethylene copolymer (a)-2: Product name "J707G", manufactured by Prime Polymer Co., Ltd.

[0136] <Homopolypropylene> Homopolypropylene 1: Low MFR homopolypropylene (product name "E111G", manufactured by Prime Polymer Co., Ltd.) Homopolypropylene 2: Medium MFR homopolypropylene (product name "J106G", manufactured by Prime Polymer Co., Ltd.) Homopolypropylene 3: High MFR homopolypropylene (product name "PMB02A", manufactured by SunAllomer Co., Ltd.) Homopolypropylene 1 and Homopolypropylene 2 fall under the category of "(b) homopolypropylene having a melt flow rate of 30 g / 10 min or less" (that is, component (b)).

[0137] <Component (c): a propylene-ethylene copolymer having a heat of fusion of 0 J / g or more and less than 50 J / g> Propylene-ethylene copolymer (c)-1: Trade name "Vistamaxx 6202", manufactured by Exxon Mobil Co. Propylene-ethylene copolymer (c)-2: Trade name "Ricothene PP 1602", manufactured by Clariant Ltd.

[0138] <Component (d): Ethylene-α-olefin copolymer> Ethylene / 1-octene copolymer: Product name "ENGAGE8137", manufactured by Dow Chemical Japan Co., Ltd.

[0139] <(e) Component: Filler> ·Talc: Product name “AS-T5”, manufactured by Tamura Nameshi Kogyo Co., Ltd.

[0140] <Antioxidants> Phenolic antioxidant: Product name "ANOX20", manufactured by Chemtura Co. Phosphorus-based antioxidant: Trade name "ADEKA STAB 2112", manufactured by ADEKA Corporation

[0141] <Lubricant> Magnesium stearate: Product name "Magnesium Stearate", manufactured by NOF Corporation

[0142] Of the raw materials for the resin composition described above, the component (a), homopolypropylene, component (c), and component (d) were evaluated as follows.

[0143] (1) Melt flow rate (MFR, unit: g / 10 min): Measurement was performed in accordance with JIS K7210:1999, Method A, Condition M (230°C, 2.16 kg load).

[0144] (2) Crystallization peak temperature (Tc, unit: °C): Using a Mettler-Toledo DSC1 differential scanning calorimeter, 10.0 mg of sample was taken, and the temperature was raised to 200°C to erase the thermal history, and then the temperature was lowered to 50°C at a rate of 10°C / min. The temperature at the top of the exothermic peak was taken as the crystallization peak temperature (Tc). When multiple peaks were observed, the highest peak temperature was taken as Tc.

[0145] (3) Heat of fusion (ΔHm, unit: J / g): Using a Mettler-Toledo differential scanning calorimeter "DSC1," 10.0 mg of sample was taken, and the temperature was raised to 200°C once to erase the thermal history, then the temperature was lowered to 50°C at a rate of 10°C / min, and the temperature was again raised to 200°C at a rate of 10°C / min. The heat of fusion (ΔHm) was measured in the range of 10 to 200°C.

[0146] (4) Melting peak temperature (Tm, unit: °C): Using a Mettler-Toledo DSC1 differential scanning calorimeter, 10.0 mg of sample was taken, and the temperature was raised to 200°C once to erase the thermal history, then the temperature was lowered to 50°C at a rate of 10°C / min, and then raised again to 200°C at a rate of 10°C / min. The temperature at the top of the endothermic peak was taken as the melting peak temperature (Tm). When multiple peaks were observed, the lowest peak temperature was taken as Tm.

[0147] The measurement results are shown in Table 1. In Table 1, "\" indicates that no measurement was performed, and "-" indicates that no peak was observed in the measurement.

[0148] [Table 1]

[0149] Example 1 (1. Preparation of Resin Composition) The components shown in Table 2 were mixed in the ratios shown in Table 2, and the components were uniformly dry-blended using a Henschel mixer.The components were then melt-kneaded at a resin temperature of 190 to 210°C using a twin-screw kneading extruder (product name "PCM30", manufactured by Ikegai Corporation) to obtain pellets of the resin composition.

[0150] (2. Manufacturing of filament materials for 3D modeling devices) The obtained pellets of the resin composition were melt-kneaded at 200°C and subjected to filament molding using a single-screw extrusion molding machine, Labo Plus Mill ("4M150" (registered trademark) manufactured by Toyo Seiki Seisakusho, Ltd.), to produce a filament material for a 3D modeling device with a diameter of 1.75 mm.

[0151] (3. Manufacturing of three-dimensional objects) The produced 3D modeling filament material was set in a fused deposition modeling 3D printer "MF-500" (Mutoh Industries Co., Ltd.), and a cube (size: 4.0 x 4.0 x 1.0 cm) was modeled using the 3D data preset in the MF-500. The modeling stage of the 3D printer used did not have a temperature control function, and the nozzle temperature was set to 250°C.

[0152] [Examples 2 to 8, Comparative Examples 1 to 9] Resin compositions, filament materials for 3D modeling devices, and 3D models were obtained in the same manner as in Example 1, except that the compositions were changed as shown in Table 2 or Table 3. In Tables 2 and 3, the units of blend amounts are parts by mass, and the values ​​shown are those when the total amount of component (a), homopolypropylene, component (c), component (d), and optional component (e) is taken as 100 parts by mass.

[0153] [Table 2]

[0154] [Table 3]

[0155] [1. Thermal characteristic evaluation] For each of the resin compositions of Examples 1 to 8 and Comparative Examples 1 to 9, the crystallization peak temperature, heat of fusion, and melting peak temperature were measured in the same manner as described above.

[0156] (Evaluation of heat resistance of resin composition) Based on the measurement results of the melting peak temperature, the heat resistance of the resin composition was evaluated on a two-point scale of 1 to 2 according to the criteria shown in Table 4. A score of 1 indicates that the heat resistance of the resin composition is poor, and a score of 2 indicates that the heat resistance of the resin composition is high.

[0157] [2.3DP Evaluation] (Building stability evaluation) Based on the results of 3D printing, the molding stability of the resin composition was evaluated on a two-point scale of 1 to 2 according to the criteria shown in Table 4. The "stable" listed in Table 4 refers to a state in which molding was possible up to the designed width and height without problems such as poor ejection or delamination. In other words, good molding stability also means good adhesion between the filament layers. A score of 1 indicates poor molding stability of the resin composition, and a score of 2 indicates good molding stability of the resin composition.

[0158] (Measurement of warpage height (mm) of the molded object) Each cube molded in Examples 1 to 8 and Comparative Examples 1 to 9 was left to stand for 48 hours in an air environment at 23°C. After standing, the cube was placed on a surface plate with the surface that contacted the molding stage in contact with the surface plate, and the maximum length from the surface plate to the bottom surface of the cube (the surface that contacted the molding stage) was measured using a height gauge as the "warpage height." Note that crystalline resins tend to gradually crystallize even after molding, resulting in greater shrinkage than immediately after molding. Therefore, the warpage height was measured 48 hours after crystallization had mostly progressed.

[0159] (Warpage evaluation) Based on the measurement results of the warpage height of the molded object, the likelihood of warping during molding was evaluated on a scale of 1 to 4 according to the criteria shown in Table 4. A higher score indicates less likelihood of warping during molding, and a score of 3 or higher indicates particularly high dimensional accuracy.

[0160] [3. Mechanical property evaluation] (Measurement of bending strength (MPa) and bending modulus (MPa)) Each of the resin pellets of Examples 1 to 8 and Comparative Examples 1 to 9 was injection molded at a cylinder temperature of 180 to 210°C and a mold temperature of 38°C using an injection molding machine "NEX110 IV" manufactured by Nissei Plastic Industrial Co., Ltd. to prepare test pieces. The obtained test pieces were subjected to a bending test in accordance with JIS K7171:2022 to measure the bending strength (MPa) and bending modulus (MPa).

[0161] (Rigidity evaluation) Based on the measurement results of the flexural modulus, the rigidity of the test specimen was evaluated on a two-point scale of 1 to 2 according to the criteria shown in Table 4. A score of 1 indicates that the rigidity of the resin composition is poor, and a score of 2 indicates that the rigidity of the resin composition is good.

[0162] [Table 4]

[0163] [result] The measurement results and evaluation results are shown in Tables 5 and 6. In Tables 5 and 6, "-" indicates that measurement was not possible because molding was not possible, and a diagonal line "\" indicates that measurement was not performed.

[0164] [Table 5]

[0165] [Table 6]

[0166] The above results demonstrate that by blending a propylene-ethylene copolymer with a specific heat of fusion, a homopolypropylene with a specific melt flow rate, and an ethylene-α-olefin copolymer in specific ratios, it is possible to realize a resin composition for use as a material for FDM-type three-dimensional modeling devices that has excellent heat resistance, dimensional accuracy, and modeling stability.

[0167] It was also shown that by further blending a specific amount of filler into such a resin composition for a material for a three-dimensional modeling device, it is possible to improve the mechanical properties of a three-dimensional object obtained by modeling the resin composition for a material for a three-dimensional modeling device. [Industrial Applicability]

[0168] The resin composition according to one embodiment of the present invention has excellent heat resistance, dimensional accuracy, and modeling stability, and can therefore be suitably used as a material resin composition for use in modeling articles using an FDM-type three-dimensional modeling device.

Claims

1. A resin composition for a material used in forming an article using a three-dimensional modeling apparatus, comprising: (a) a propylene-ethylene copolymer having a heat of fusion of 50 J / g or more and less than 100 J / g; (b) homopolypropylene having a melt flow rate of 30 g / 10 min or less; (c) a propylene-ethylene copolymer having a heat of fusion of 0 J / g or more and less than 50 J / g; and (d) ethylene-α-olefin copolymer, Contains When the total amount of the component (a), the component (b), the component (c), and the component (d) is 100 parts by mass, 20 parts by mass or more and 50 parts by mass or less of the component (a), The component (b) is 5 parts by mass or more and 20 parts by mass or less The component (c) is 35 parts by mass or more and 60 parts by mass or less, and The (d) component is 1 part by mass or more and 10 parts by mass or less, Including, The total amount of the component (a) and the component (b) is 40 parts by mass or more. Resin composition for material for three-dimensional modeling equipment.

2. When the total amount of the component (a), the component (b), the component (c), and the component (d) is 100 parts by mass, (e) Contains 100 parts by mass or more and 180 parts by mass or less of a filler; The resin composition for use as a material for a three-dimensional object forming apparatus according to claim 1 .

3. The content of the (b) component is 5 parts by mass or more and 10 parts by mass or less. The resin composition for use as a material for a three-dimensional object forming apparatus according to claim 1 or 2.

4. The resin composition for use as a material for a three-dimensional object shaping apparatus according to claim 1 , which has a peak melting temperature of higher than 150° C.

5. A filament material for use in forming an article using a three-dimensional modeling apparatus, comprising: A filament material comprising the resin composition for a three-dimensional object forming apparatus according to claim 1 .

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