JP2023153519A - Molding material, and molded article - Google Patents

Abstract

To provide a molding material that achieves a trade-off balance between mechanical strength and slidability at high levels.SOLUTION: A molding material 10 includes a phenolic resin A, a fiber bundle B composed of reinforced fibers, and a solid lubricant. The reinforced fibers have a fiber length of 3 mm or more. The content of the solid lubricant is 1-20 mass% relative to the total amount of the molding material 10.SELECTED DRAWING: Figure 1

Description

The present invention relates to a molding material and a molded article.

Conventionally, in key industrial fields such as the automobile field, electrical field, and electronic field, molding materials with excellent heat resistance, dimensional stability, moldability, etc. have been used as metal substitute materials. Therefore, various developments have been made regarding molding materials containing phenolic resins and the like, depending on the required characteristics.

On the other hand, a fiber-reinforced plastic (FRP) molded article using reinforcing fibers is known as one of the materials with excellent mechanical strength. For example, Patent Document 1 describes a naphthol structure which may have a substituent on the aromatic ring and an alkyl structure having 4 to 8 carbon atoms as a substituent on the aromatic ring in order to obtain mechanical properties and heat resistance. Disclosed is a fiber-reinforced composite material comprising a reinforcing fiber and a polyfunctional phenol resin characterized in that a catechol structure having a group is bonded via a methylene group which may have a substituent. There is.

JP2021-066832A

However, in conventional composite molding materials using reinforcing fibers as described in Patent Document 1, although mechanical strength can be improved by lengthening the reinforcing fibers, on the other hand, sliding properties tend to decrease. there were.

The present inventors have discovered a new molding material that achieves a higher trade-off balance between mechanical strength and slidability than ever before.

According to the present invention, the following molding materials and molded bodies are provided.

[1] A molding material containing a phenolic resin, reinforcing fibers, and a solid lubricant,
The fiber length of the reinforcing fiber is 3 mm or more,
A molding material, wherein the content of the solid lubricant is 1 to 20% by mass based on the total amount of the molding material.
[2] The molding material according to [1],
The solid lubricant is a molding material containing one or more selected from carbon materials, metal oxides, metal sulfides, metal powders, boron nitride, and fluororesins.
[3] The molding material according to [1] or [2],
A molding material in which the reinforcing fiber content is 25 to 80% by mass based on the total amount of the molding material.
[4] The molding material according to any one of [1] to [3],
A molding material, wherein the solid lubricant has an average particle size of 2 to 100 μm.
[5] The molding material according to any one of [1] to [4],
A molding material, wherein the phenolic resin includes a novolac-type phenolic resin and/or a resol-type phenolic resin.
[6] The molding material according to any one of [1] to [5],
The molding material is a strip-shaped molding material having a length of 3 mm to 40 mm, a width of 2 mm to 10 mm, and a thickness of 0.03 mm to 2.0 mm.
[7] The molding material according to any one of [1] to [6],
The reinforcing fibers include metal fibers, carbon fibers, glass fibers, ceramic fibers, polyamide fibers, aramid fibers, polyimide fibers, polyvinyl alcohol fibers, polyester fibers, acrylic fibers, polyparaphenylenebenzoxazole fibers, polyethylene fibers, polypropylene fibers, A molding material containing one or more selected from acrylonitrile fibers and ethylene vinyl alcohol fibers.
[8] The molding material according to any one of [1] to [7],
A molding material, wherein the reinforcing fibers are fiber bundles aligned in the length direction of the molding material.
[9] A molded article comprising a cured product of the molding material according to any one of [1] to [8].

According to the present invention, it is possible to realize a molding material that balances the trade-off between mechanical strength and slidability.

It is a perspective view showing the molding material of this embodiment.

In the present specification, the notation "a to b" in the description of numerical ranges indicates a range from a to b, unless otherwise specified. For example, "1 to 5% by mass" means "1 to 5% by mass".

Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. Note that the embodiments of the present invention are not limited to those described below.

<Molding material>
The molding material of this embodiment includes a phenol resin, reinforcing fibers having a fiber length of 3 mm or more, and a solid lubricant. Hereinafter, an example of configuring a fiber bundle in which reinforcing fibers are aligned in one direction will be described using FIG. 1.

As shown in FIG. 1, the molding material 10 of this embodiment includes a phenolic resin A, fiber bundles B aligned in one direction, and a solid lubricant (not shown).
The fiber bundle B aligned in one direction is intended to be oriented in the direction in which the reinforcing fiber bundle is conveyed during the manufacturing process of the molding material 10 of this embodiment. In addition, some discontinuities or insufficient orientation may be unavoidably included in the manufacturing process. The fiber bundle B may be formed by laminating a plurality of layers in which a plurality of reinforcing fibers oriented in a certain direction are arranged in a plane.

In the molding material 10 of this embodiment, the fiber bundle B is intended to be a state in which a plurality of reinforcing fibers are oriented and gathered together. Although it is preferable that the fiber bundle B is continuous from one end of the molding material 10 to the other end, a portion of the fiber bundle B may be discontinuous.

Although the shape of the molding material 10 of this embodiment is not particularly limited, it is preferably rod-shaped, columnar, or flat. More preferably, the shape is Moreover, when the molding material 10 of this embodiment is flat, it is preferable that the planar view of the molding material 10 is a substantially square shape, that is, a strip shape. This makes it easier to orient the fiber bundle B and improve mechanical strength.
Among these, the molding material 10 of this embodiment is preferably in the form of a strip with a length of 3 mm to 40 mm and a width of 2 mm to 10 mm. In other words, the length of the fiber bundle B in the orientation direction, that is, the length of the reinforcing fibers, is preferably 3 mm to 40 mm, and the length perpendicular to the orientation direction is preferably 2 mm to 10 mm.
Furthermore, the thickness of the molding material 10 of this embodiment is not particularly limited, but is preferably 0.03 mm to 2.0 mm, more preferably 0.1 to 1.5 mm. The thickness of the molding material 10 of this embodiment is adjusted by the diameter of each fiber constituting the fiber bundle B and the number of bundles.

The materials constituting the molding material 10 of this embodiment will be described below.

[Fiber bundle]
The fiber bundle B improves the mechanical strength of the molding material 10 of this embodiment, and is a bundle of long reinforcing fibers. It is preferable that all the reinforcing fibers in the fiber bundle B are continuous, but some of them may be discontinuous.
In this embodiment, the fiber bundle B includes metal fibers, carbon fibers, glass fibers, ceramic fibers, basalt fibers, polyamide fibers, aramid fibers, polyimide fibers, polyvinyl alcohol fibers, polyester fibers, acrylic fibers, and polyparaphenylenebenzoxazole fibers. , polyethylene fiber, polypropylene fiber, polyacrylonitrile fiber, and ethylene vinyl alcohol fiber. Among these, metal fibers, carbon fibers, glass fibers, and basalt fibers are preferred, and carbon fibers are more preferred.

Further, the content of the fiber bundle B is preferably 25 to 80% by mass, more preferably 30 to 70% by mass, and preferably 35 to 60% by mass, based on the total amount of the molding material 10. More preferably, 35 to 50% by weight is particularly preferred.
By setting the content of the fiber bundle B to be equal to or more than the above lower limit, the bending strength and bending elastic modulus of the molding material 10 can be improved. On the other hand, by controlling the content of the fiber bundle B to be less than or equal to the above upper limit value, the processability of the molding material 10 can be maintained and good bending strength and bending elastic modulus can be obtained.

Further, the average fiber diameter (diameter) constituting the fiber bundle B is not particularly limited, but from the viewpoint of obtaining good mechanical strength and workability, it is preferably 1 to 20 μm, more preferably 2 to 15 μm, More preferably, the thickness is 3 to 10 μm.

Further, the number average fiber length of the fiber bundle B is not particularly limited, but when the length in the longitudinal direction of the molding material 10 of this embodiment is 100, it is preferably 50 to 100%, and 80%. More preferably, it is between 100% and 100%. Further, the number average fiber length of the fiber bundle B may be, for example, 10 to 1000 μm, or 30 to 500 μm.

The number average fiber diameter and number average fiber length of the fiber bundle B can be determined by measuring the diameter and length of each of the 100 fibers constituting the fiber bundle B using, for example, an electron microscope. By appropriately adjusting the shape, length, etc. of each fiber constituting the fiber bundle B, fluidity during molding, mechanical strength of the molded product, etc. can be further improved.

[Phenol resin]
In this embodiment, the fiber bundle B is impregnated with the phenolic resin A.

Specifically, as the phenol resin A, a novolak type phenol resin, a resol type phenol resin, a phenoxy-modified phenol resin, or a modified phenol resin can be used.

The novolac type phenolic resin is not particularly limited as long as it is a resin obtained by reacting raw material phenols and aldehydes without a catalyst, in the presence of an acidic catalyst, or a transition metal catalyst.
Examples of novolac type phenolic resins include unmodified phenolic resins, cresol resins, resorcinol resins, xylenol resins, cresol/xylenol resins, cresol-modified phenolic resins, resorcinol-modified phenolic resins, xylenol-modified phenolic resins, and alkylphenol resins. , alkylphenol-modified phenolic resin, bisphenol-modified phenolic resin, cashew oil-modified phenolic resin, tall oil-modified phenolic resin, rosin-modified phenolic resin, terpene oil-modified phenolic resin, random novolac type phenolic resin, high ortho novolac type A phenol resin or a resin using one or more types of known phenols as raw materials can be used.
These resins may be used alone or in combination of two or more.

For example, novolac type phenolic resin is produced by mixing phenols and aldehydes, which are raw material monomers, in the absence of a catalyst or in the presence of a catalyst (for example, an acidic catalyst or a transition metal catalyst) at a molar ratio of aldehydes to phenols (aldehydes/phenol). ) can be obtained by controlling the reaction so that it is 0.5 to 1.0.

The resol type phenolic resin can be obtained, for example, by reacting the above-mentioned phenols and aldehydes with an alkaline catalyst (under alkaline conditions) or a zinc-based catalyst (under weakly acidic conditions).

Examples of the phenoxy-modified phenol resin include phenoxy-modified novolac type phenol resin.
Further, in the phenoxy-modified phenol resin, it is preferable that 5 to 25% by mass of the phenol resin is modified with the phenoxy resin.
The phenoxy-modified novolac type phenol resin can be synthesized by, for example, dissolving the novolac type phenol resin and the phenoxy resin in an organic solvent and stirring and mixing them, or using a pressure kneader, roll, single-screw or twin-screw kneader, etc. An example of this is melt-kneading.

The phenolic resin A contained in the molding material 10 of this embodiment may be used alone or in combination of two or more.

The content of phenolic resin A is preferably 15 to 65% by mass, more preferably 25 to 60% by mass, and even more preferably 35 to 50% by mass based on the entire molding material 10.
By setting the content of the phenolic resin A within this numerical range, it becomes possible to achieve a high level of balance between the mechanical strength and slidability of the molding material 10.
By setting the content of the phenolic resin A to the above lower limit value or more, the molding material 10 has good processability and is easily imparted with functions such as slidability. On the other hand, by controlling the content of phenolic resin A to be below the above upper limit, mechanical properties can be improved.

[Solid lubricant]
The solid lubricant is used to impart sliding properties to the molding material 10. It is desirable to have heat resistance and a high melting point.

Examples of solid lubricants include, but are not limited to, carbon materials such as graphite and graphite fluoride; metal oxides such as alumina, silica, and zirconia; tin monosulfide, tin disulfide, tin trisulfide, tungsten disulfide, One or two types selected from metal sulfides such as molybdenum disulfide; metal powders such as copper, zinc, gold, silver, tin, and indium; boron nitride; fluororesins such as polytetrafluoroethylene (PTFE), etc. The above can be mentioned.
Among these, carbon materials and fluororesins are preferred, and fluororesins are more preferred, from the viewpoint of improving the balance between sliding properties and mechanical strength.

The average particle diameter D50 of the solid lubricant is preferably 2 to 100 μm, more preferably 3 to 80 μm, even more preferably 4 to 60 μm, even more preferably 4 to 50 μm.
By setting the average particle diameter D50 to be equal to or greater than the above lower limit, it is possible to obtain sliding properties while maintaining the mechanical strength of the molding material 10. On the other hand, by setting the average particle diameter D50 to the above upper limit value or less, the dispersibility in the molding material is improved, the slidability of the molded product can be stably increased, and the mold release property of the molded product is improved. can also be increased.

Note that the particle size (D50) is intended to be a particle size that corresponds to 50% of the cumulative fraction of volume based on the laser diffraction scattering method.

Further, when the solid lubricant is a fluororesin, the weight average molecular weight Mw of the fluororesin is, for example, preferably 10,000 to 10,000,000, and 100,000 to 5,000,000. By setting Mw within the above range, the dispersion in the molding material 10 becomes appropriate, and the balance between slidability and mechanical strength can be improved.

The content of the solid lubricant is 1 to 20% by mass, preferably 3 to 18% by mass, and more preferably 5 to 15% by mass, based on the entire molding material 10.
By setting the content of the solid lubricant within this numerical range, it becomes possible to achieve a high level of balance between the mechanical strength and slidability of the molding material 10.
By setting the content of the solid lubricant to the above-mentioned lower limit or more, the molding material 10 has good workability and can easily be provided with functions such as slidability. On the other hand, by controlling the content of the solid lubricant to be equal to or less than the above upper limit, mechanical properties can be improved.

The molding material 10 of this embodiment includes, as necessary, a resin other than phenol resin A, an elastomer, a curing agent, a reaction initiator, a flame retardant, and an inorganic filler, as well as a mold release agent, a pigment, an adhesion improver, One or more types of known additives such as coupling agents may be included.

These various components can be mixed together with the above phenolic resin A to form a phenolic resin composition. The molding material 10 of this embodiment can be obtained by a manufacturing method described below using a phenolic resin composition and a fiber bundle.

[Reaction initiator]
The molding material 10 of this embodiment can use a reaction initiator of phenol resin A.
The reaction initiator is not particularly limited, and for example, peroxides such as dicumyl peroxide, t-butyl peroxybenzoate, and t-butyl peroxyisopropyl carbonate can be used.

[Flame retardants]
The molding material 10 of this embodiment can use a flame retardant. Examples of the flame retardant include chlorine flame retardants, inorganic flame retardants, nitrogen flame retardants, silicone flame retardants, bromine flame retardants, phosphorus flame retardants, and the like.
The content of the flame retardant can be appropriately set depending on the use of the molding material 10, but is preferably 0.1 to 20% by mass, more preferably 1 to 15% by mass, based on the entire molding material 10.

Furthermore, the molding material 10 of this embodiment can use antimony trioxide, aluminum hydroxide, magnesium hydroxide, boric acid, zinc borate, etc. as a flame retardant aid. In consideration of flame retardant effect and environmental impact, aluminum hydroxide, boric acid, and zinc borate are preferred.

[Inorganic filler]
The molding material 10 of this embodiment can use an inorganic filler. The inorganic filler can impart mechanical properties, dimensional stability, etc. to the molding material 10.
The inorganic filler is not particularly limited, but may be suitably used alone or in combination from among glass fiber, clay, calcium carbonate, talc, magnesium oxide, aluminum hydroxide, and the like.
Among them, it is more preferable to use glass fiber and clay in consideration of the performance (mechanical properties, electrical properties, flame retardance, dimensional stability, water resistance, etc.) required of the molding material 10. Note that some inorganic fillers such as aluminum hydroxide also have an effect as a flame retardant aid.

The content of the inorganic filler is preferably 1 to 20% by mass, more preferably 2 to 15% by mass, based on the entire molding material 10. By setting the content of the inorganic filler to the above lower limit or more, good mechanical properties and heat resistance can be maintained, and by setting the content to below the above upper limit, the processability of the molding material 10 can be improved.

<Method for preparing phenolic resin composition>
The phenol resin composition of this embodiment can be manufactured by a normal method. That is, all the raw materials except the fiber bundle B are melt-kneaded using a kneading device such as a roll, a co-kneader, or a twin-screw extruder, or by a combination of a roll and another mixing device, and the resulting kneaded product is pulverized. A phenolic resin composition is thereby obtained. Furthermore, during melt-kneading, raw materials other than the fiber filler may be added and mixed in multiple batches as the case may be. Alternatively, the phenol resin composition may be pulverized as it is without being melted and kneaded.
In this way, a powdered phenol resin composition is obtained. The average particle size of the powdered phenol resin composition can be, for example, 10 to 100 μm.

<Method for manufacturing molding material>
An example of a method for manufacturing the molding material 10 of this embodiment will be described. The method for manufacturing the molding material 10 of this embodiment includes the following steps.
Step 1: A step of impregnating the fiber bundle B aligned in one direction with the phenolic resin A Step 2: A step of cutting the fiber bundle B to obtain the molding material 10 Each step will be explained below.

[Step 1]
First, a phenolic resin composition containing powdered phenolic resin A is prepared using the above-mentioned known method.
On the other hand, the fiber bundle B is conveyed by a known method so as to be aligned in the length direction. The fiber bundle B may be wound up into a roll in advance. The fiber bundle B is a long fiber group in which continuous reinforcing fibers are bundled, and constitutes a part of the molding material 10 by being cut later.

Subsequently, a method can be used in which the powder is applied to the fiber bundle B using a fluidized bed technique. Specifically, the powder containing the phenolic resin A obtained above (powdered phenolic resin composition) may be applied directly to the fiber bundle B from a fluidized bed, or the powder may be applied to the fiber bundle B directly from a fluidized bed. While the long fiber bundle B wound up on the roll is unwound from a roll and run, the powder containing the phenol resin A may be sprayed onto the entire surface of the fiber bundle B to make it adhere.
For example, when a known fluidized bed apparatus is used, the amount of powder containing the phenolic resin A to be deposited on the fiber bundle B can be adjusted by adjusting the powder flow conditions. As a result, the proportion of fiber bundles B in the strip-shaped molding material 10 obtained later can also be controlled.

Subsequently, the fiber bundle B to which the powder is attached is heated for a short time to impregnate and fix the material such as the phenol resin A contained in the powder into the fiber bundle B. The heating method is not particularly limited, but includes, for example, a non-contact preheating method using a far infrared heater, a high-temperature oven, induction heating, or a method of preheating by contacting with a heated roll or belt.

[Step 2]
Thereafter, the fiber bundle B impregnated with the phenol resin A is cut in the transverse direction to form a strip of desired length, thereby obtaining the molding material 10 of this embodiment. Thereby, a molding material 10 is obtained in which the fiber bundles B are oriented substantially parallel to the longitudinal direction of the strip.
The cutting method is not particularly limited, and any known method can be used.
In this embodiment, the molding material 10 is cut into lengths of about 3 mm to 40 mm, so that the reinforcing fibers can have a length of 3 mm or more.

<Molded products and molded product manufacturing methods>
A molded article can be manufactured by curing the molding material 10 described above. For example, a molded article (a molded article comprising a cured product of the molding material 10 described above) can be manufactured by using the above-mentioned molding material 10 and a suitable mold by a method such as transfer molding, compression molding, or injection molding. . Among these, injection molding is preferable from the viewpoint of effectively exerting the mechanical strength of the fiber bundle B.

The use of the molded product is not particularly limited. Applications include, for example, automobiles, aircraft, railway vehicles, ships, office equipment, general-purpose machinery, household appliances, electrical equipment, various housings, and structural/mechanical parts. Of course, uses other than these are not excluded.

Further, the method for manufacturing a molded article according to the present embodiment may include a step of heat-treating the above-mentioned molding material 10 at 70 to 150° C. for 1 to 10 minutes in advance, and then molding the material 10. .
By doing so, the fiber bundles B of the molding material 10 are spread, and the fiber bundles B are easily dispersed uniformly in the molded product, so that the quality of the molded product can be improved.

Although the embodiments of the present invention have been described above, these are merely examples of the present invention, and various configurations other than those described above can be adopted. Furthermore, the present invention is not limited to the above-described embodiments, and the present invention includes modifications, improvements, etc. within a range that can achieve the purpose of the present invention.

Embodiments of the present invention will be described in detail based on Examples and Comparative Examples. Note that the present invention is not limited to the examples.

(1) Preparation The following materials were prepared as raw materials for the molding material.
[Reinforced fiber]
・Fiber bundle: Carbon fiber roving "HTS40 F22 12K 800TEXS" (manufactured by Teijin Ltd.) (average fiber diameter 7 μm)
・Short fiber: Carbon fiber "Tenax Chopped Fiber HT C422 (6mm chopped)" (manufactured by Teijin Ltd.) (fiber average diameter 7μm)

[Phenol resin composition]
・Phenol resin 1: Resol type phenol resin “PR-51723” (manufactured by Sumitomo Bakelite Co., Ltd.)
・Phenol resin 2: Resol type phenol resin “R-25” (manufactured by Sumitomo Bakelite Co., Ltd.)
・Phenol resin 3: Phenoxy modified phenol resin (phenoxy resin modification rate 10%) "Durez 33789" (manufactured by Sumitomo Bakelite Co., Ltd.)
・Solid lubricant 1: PTFE "KT-300M" (manufactured by Kitamura Co., Ltd.), D50: 40 μm
・Solid lubricant 2: Graphite "Soil graphite #80 special fine powder" (manufactured by Nishimura Graphite Co., Ltd.), D50: 4.7 μm
・Curing aid: Slaked lime “Slaked Lime Acidachi” (manufactured by Adachi Lime Industry Co., Ltd.)
・Elastomer: Alkyl acetalized polyvinyl alcohol “S-LEC B BX-5” (manufactured by Sekisui Chemical Co., Ltd.)
・Release agent: Magnesium fatty acid, carnauba wax “Daiwax” (manufactured by Dainichi Chemical Co., Ltd.)
・Pigment: Carbon black “Carbon Black CK-45” (Mitsubishi Chemical)

(2) Preparation of phenol resin composition First, a powdered phenol resin composition was prepared.
Specifically, the phenolic resin is prepared by kneading each material of the phenolic resin composition in the proportions shown in Table 1 at 80°C using heating rolls with different rotation speeds, cooling it into a sheet, and pulverizing it. A granular kneaded product was obtained. Thereafter, it was pulverized using an ACM pulverizer (a pulverizer with a built-in impact classifier) under the conditions of a classification rotation of 3000 rpm and a crushing rotation of 8500 rpm to obtain a powdered phenol resin composition (hereinafter referred to as "powder a"). I got it. The average particle size of powder a was 15 μm.

(3) Preparation of molding material <Examples 1 to 4, Comparative Example 3>
Powder a was applied to the fiber bundles shown in Table 1 using a coater device. Specifically, the powder is stirred in the coater tank of the coater device to generate static electricity, and the fiber bundle is passed through the coater tank, so that the powder a is attached to the fiber bundle using static electricity, and then the powder is heated to a high temperature. The fiber bundles were impregnated with powder a in the proportions shown in Table 1 by heating at 200° C. for 20 seconds using an oven.
Thereafter, each fiber bundle was cut in the transverse direction so as to have the fiber length (mm) shown in Table 1 to obtain a rectangular molding material (width 3 mm).

<Comparative Examples 1-2>
Using short fibers as reinforcing fibers, the raw materials mixed in the proportions shown in Table 1 were kneaded at 80°C, cooled into a sheet, and pulverized to obtain a granular kneaded product. This was used as a molding material.

(4) Evaluation/Measurement The following measurements were performed using each of the obtained molding materials. The results are shown in Table 1.

・Breaking strength (kN)
Each molding material was injection molded under the conditions of a mold temperature of 175° C. and a curing time of 150 seconds to prepare a test piece formed into a scroll shape. Using the test piece, a load was applied to the base of the scroll at 25° C., and the load applied at the time of breakage was measured, which was defined as the breaking strength.

・Sliding property In accordance with JIS K 7218 3-pin-on-disk method, a resin pin (cylindrical diameter 5 mm, height 8 mm) and an iron disk were used to achieve a sliding speed of 1.8 m/s and surface pressure. The coefficient of dynamic friction was measured under refrigerating machine oil at a pressure of 4.5 MPa and a measurement time of 1 hour.
The above resin pins were cut out from blocks formed by compression molding each molding material at a mold temperature of 175° C. and a curing time of 180 seconds. In addition, in order to equalize the surface roughness of the resin pins, the sliding surfaces were polished with a file having a grain size of 1000 before the test.

10 Molding material A Phenol resin B Fiber bundle

Claims (9)

A molding material containing a phenolic resin, a reinforcing fiber, and a solid lubricant,
The fiber length of the reinforcing fiber is 3 mm or more,
A molding material, wherein the content of the solid lubricant is 1 to 20% by mass based on the total amount of the molding material. The molding material according to claim 1,
The solid lubricant is a molding material containing one or more selected from carbon materials, metal oxides, metal sulfides, metal powders, boron nitride, and fluororesins. The molding material according to claim 1 or 2,
A molding material in which the reinforcing fiber content is 25 to 80% by mass based on the total amount of the molding material. The molding material according to claim 1 or 2,
A molding material, wherein the solid lubricant has an average particle size of 2 to 100 μm. The molding material according to claim 1 or 2,
A molding material, wherein the phenolic resin includes a novolac-type phenolic resin and/or a resol-type phenolic resin. The molding material according to claim 1 or 2,
The molding material is a strip-shaped molding material having a length of 3 mm to 40 mm, a width of 2 mm to 10 mm, and a thickness of 0.03 mm to 2.0 mm. The molding material according to claim 1 or 2,
The reinforcing fibers include metal fibers, carbon fibers, glass fibers, ceramic fibers, polyamide fibers, aramid fibers, polyimide fibers, polyvinyl alcohol fibers, polyester fibers, acrylic fibers, polyparaphenylenebenzoxazole fibers, polyethylene fibers, polypropylene fibers, A molding material containing one or more selected from acrylonitrile fibers and ethylene vinyl alcohol fibers. The molding material according to claim 1 or 2,
A molding material, wherein the reinforcing fibers are fiber bundles aligned in the length direction of the molding material. A molded article comprising a cured product of the molding material according to claim 1 or 2.

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