WO2007055338A1 - 樹脂成形材料 - Google Patents
樹脂成形材料 Download PDFInfo
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- WO2007055338A1 WO2007055338A1 PCT/JP2006/322503 JP2006322503W WO2007055338A1 WO 2007055338 A1 WO2007055338 A1 WO 2007055338A1 JP 2006322503 W JP2006322503 W JP 2006322503W WO 2007055338 A1 WO2007055338 A1 WO 2007055338A1
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- resin molding
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/10—Reinforcing macromolecular compounds with loose or coherent fibrous material characterised by the additives used in the polymer mixture
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
- C10M107/04—Polyethene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/38—Lubricating compositions characterised by the base-material being a macromolecular compound containing halogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/16—Solid spheres
- C08K7/18—Solid spheres inorganic
Definitions
- the present invention relates to a resin molding material, and particularly to a resin molding material having excellent mechanical strength and extremely excellent wear resistance and suitable as a material for sliding parts made of resin.
- a phenol resin molding material using glass fiber as a filler and having an increased blending amount has sufficient characteristics as a substitute material for a metal material in terms of heat resistance, dimensional stability and strength.
- the wear resistance tends to decrease depending on the amount, and it has been difficult to apply to applications requiring wear resistance.
- Patent Document 1 describes the invention of a pulley made of a resin using novolac-type phenol resin as a base resin and glass fiber and glass beads as a main filler
- Patent Document 2 discloses a main filler.
- the invention of phenolic resin molding material using aramid fiber, glass fiber, and glass powder is further disclosed in Patent Document 3, which uses glass fiber as the main filler and lubricates organic natural materials to improve wear resistance.
- An invention of a phenolic resin molding material using an agent is disclosed.
- Patent Document 4 reports that a carbon fiber having a crystal structure of an onion structure (for example, PAN (polyacrylonitrile)) is used, but the mechanical strength is improved but the wear resistance is insufficient. .
- PAN polyacrylonitrile
- Patent Document 5 describes the addition of graphite
- Patent Document 6 describes an improvement in wear resistance by adding graphite, but both have the disadvantage of reducing mechanical strength.
- Patent Document 7 discloses an invention of a phenolic resin molding material in which glass fibers and wollastonite are used as main fillers and organic natural materials and graphite are added.
- Patent Document 8 describes an invention in which baked clay is added
- Patent Document 9 describes an invention of a molding material having wear resistance to which polyimide powder and pulp powder are added.
- Patent Document 10 discloses a molding material obtained by adding a fluorinated resin powder or polyethylene powder to a thermosetting resin
- Patent Document 11 discloses an invention of a phenolic resin composition material obtained by adding graphite. .
- the workability and moldability at the time of manufacture may be reduced due to the slipperiness of the lubricating substance itself, and the amount added to the molding material is limited. Further, when the amount of such a lubricating substance added is increased, the adhesion with the resin is lowered, and the mechanical strength of the molding material may be reduced.
- Patent Document 1 Japanese Patent Publication No. 6-45200
- Patent Document 2 Japanese Patent Laid-Open No. 4-371807
- Patent Document 3 Japanese Patent Laid-Open No. 10-53692
- Patent Document 4 Japanese Patent Laid-Open No. 11-80501
- Patent Document 5 Japanese Patent Laid-Open No. 9-194685
- Patent Document 6 Japanese Patent Application Laid-Open No. 2004-204031
- Patent Document 7 JP-A-8-101446
- Patent Document 8 JP-A-8-319399
- Patent Document 9 JP-A-7-157633
- Patent Document 10 Japanese Patent Laid-Open No. 2000-273321
- Patent Document 11 Japanese Patent Laid-Open No. 7-157633
- the present invention has been made from the above viewpoint, and improves a decrease in wear resistance due to wear powder generated from inorganic substances, particularly glass fibers, while maintaining good mechanical strength and formability.
- An object of the present invention is to provide a resin molding material that has low cost and has outstanding wear resistance.
- the present inventors have found that the above object can be achieved by blending a specific carbon substance and a specific inorganic substance, and further a lubricating substance into the fat.
- the present invention has been completed based on strong knowledge.
- the present invention provides:
- a resin molding material containing a resin, a carbon material and an inorganic material, wherein the resin material contains an adhesive carbon material as a carbon material,
- a resin molding material containing a resin, a carbon substance and an inorganic substance, wherein the resin substance contains a carbon substance having a true specific gravity of 1.8 or more,
- the lubricating substance is at least one resin selected from polyethylene resin, nylon resin, fluorine resin and polypropylene resin,
- the average particle size of the lubricating substance is 2 to: L 10 m of the above 14 to 17!
- the resin molding material of the present invention relates to a resin molding material containing a resin, a carbon substance and an inorganic substance, and further a lubricating substance, wherein the carbon substance is at least one of a resin and an inorganic substance. It has the adhesiveness with respect to.
- the resin molding material may be simply referred to as a molding material.
- the resin that can be used in the resin molding material of the present invention is not particularly limited as long as it can be molded.
- thermoplastic resin examples include polyethylene resin, polypropylene resin, vinyl chloride resin, salt vinylidene resin, styrene resin, butyl acetate resin, fluorine resin, polytetrafluoroethylene, Acrylonitrile Z Butadiene Z Styrene resin, Acrylonitrile z Styrene resin, Acrylic resin, Metatalyl resin, Polyamide resin, Polyacetal resin, Polycarbonate resin, Polyethylene ether resin, Polyester resin, Cyclic polyolefin resin Examples thereof include resin, polyphenylene sulfide resin, polysulfone resin, polyethersulfone resin, polyarylate resin, polyetheretherketone resin, and polyimide resin.
- thermosetting resin examples include phenol resin, epoxy resin, melamine resin, urea resin, unsaturated polyester resin, alkyd resin, and the like.
- Two or more kinds of the above-mentioned rosins can be used in combination.
- phenol resin is preferred as the resin.
- a novolak type or a resol type may be used alone, or both may be used in combination.
- the novolac type phenol resin used in the present invention is not particularly limited, and examples thereof include random novolac resin and high ortho novolac resin.
- Novolac-type phenolic resin is an organic monocarboxylic acid such as phenols and formaldehyde, formic acid and acetic acid such as phenols and formaldehyde or inorganic acids such as boric acid, hydrochloric acid and nitric acid in the presence of an acid catalyst such as oxalic acid.
- organic monocarboxylic acid such as phenols and formaldehyde
- formic acid and acetic acid such as phenols and formaldehyde
- inorganic acids such as boric acid, hydrochloric acid and nitric acid
- an acid catalyst such as oxalic acid
- the resol type phenolic resin used in the present invention is not particularly limited, and includes methylol type and dimethylene ether type. Among these, the balance between curability and heat stability is good. It is preferable to use the dimethylene ether type.
- Dimethylene ether-type resole resin reacts phenol and formaldehyde in the presence of a group 2 or transition element and an organic monocarboxylic acid such as formic acid or acetic acid or an inorganic acid such as boric acid, hydrochloric acid or nitric acid. Can be synthesized.
- the dimethylene ether type resol resin used in the present invention is preferably one having a dimethylene ether group content of 20 to 70 mol% and a number average molecular weight of 400 to 1000 from the viewpoint of curability.
- the soft spot of the resol type phenol resin is not particularly limited, but it is preferably 70 ° C. or more because of excellent workability.
- the resol-type rosin can be easily pulverized and mixed with other fillers.
- the curing When it is added in an amount of 10% by mass or more, the curing is sufficient, and when it is 25% by mass or less, the curing is sufficient and there is no occurrence of molding failure due to decomposition gas or the like.
- the carbon substance used in the resin molding material of the present invention has adhesion to at least one of oil and inorganic substances.
- the true specific gravity of the carbon material of the present invention is usually preferably 1.8 or more, more preferably 1.8 to 2.5, and still more preferably 1.8 to 2.3.
- the half width ratio (T1) Z (T2) of the full width at half maximum (T2) is usually preferably 17 or less.
- the half width ratio ( ⁇ 1) ⁇ ( ⁇ 2) is less than the above value, the crystallinity is high and the cleavage is easy, the wear surface is likely to be flat, and adhesive wear powder is likely to be generated. Therefore, wear resistance is improved.
- the adhesive carbon substance used for the resin molding material of the present invention is a surface on which a flat plate made of glass with no irregularities is fixed on a base at room temperature (25 ° C), and a load-bearing surface on the flat plate. Place 10 to 30 mg of the weighed carbon material in the center of the tube and reciprocate it 100 times continuously while applying a load of 2 to 3 kgf / cm 2 (0.196 to 0.294 MPa) over 4 cm each in the front and back. After Using a cotton gauze cloth, the glass material is reciprocated 10 times with a load of 10 g (98 mN) to completely remove the carbon material remaining in powder form on the glass plate surface, and the carbon material placed on the glass plate. This is a carbon material in which 0.1% by mass or more of X with respect to the total mass X remains on the flat plate surface.
- This adherent carbon material is believed to be adherent to resin and Z or inorganic substances.
- the carbon material remaining on the flat plate surface is preferably 1% by mass or more. More preferably, it is 2% by mass or more.
- Adhesive carbon substances may be used alone or in combination of several kinds.
- the adhering carbon substance In the case of a mixture of several kinds of carbon substances, it is usually preferable to adjust the adhering carbon substance so that it contains 1.5 to 180 parts by mass per 100 parts by weight of the resin. If the carbon material is a mixture of several kinds and it is unclear what kind of carbon material the mixture is, it is unclear how much carbon material has adhesive properties. It is necessary to find the amount added, but when the mixture has adhesiveness, the effect of mechanical strength and wear resistance can be exhibited by adding an appropriate amount.
- the adhering carbon material becomes a wear powder due to wear, adheres to at least one of the surface of the resin and Z or inorganic material that has become uneven due to wear, and is pressed by friction to flatten the wear surface. Can be.
- the adherent carbon material generates wear powder due to wear and at the same time functions to coat the wear surface flatly.
- the lubricity of carbon can suppress wear and reduce the unevenness of the wear surface.
- the adherent carbon substance used in the resin molding material of the present invention is preferably in the form of a fiber in order to maintain all of the mechanical strength and wear resistance in a well-balanced manner.
- the carbon material is usually used in the range of 1.5 to 180 parts by mass as described above with respect to 100 parts by mass of the resin in order to maintain the wear resistance of the molded product.
- the mechanical strength and wear resistance can be kept high. That is, when the blending amount is 1.5 parts by mass or more, the wear resistance effect is sufficiently exerted.
- the fibrous carbon material (adhesive carbon fiber) used in the phenol resin molding material of the present invention is preferably a pitch-based carbon in order to maintain high wear resistance.
- Fibers include petroleum-based, coal-based, synthetic-based and liquid-fired coal-based. Normally, spinning, infusibilization, 1500 ° C or higher, 3000 °, using pitch produced as a by-product during petroleum refining. Manufactured by carbonizing or graphitizing below C.
- Pitch-based carbon fibers are mainly composed of carbon atom hexagonal network planes, and isotropic fibers are particularly preferred.
- pitch-based carbon fibers examples include Nippon Graphite Fibers Co., Ltd. (XN-1 00-03S).
- the fibrous carbon material is expressed as adhesive carbon fiber or simply carbon fiber.
- these adhering carbon substances are oxidized, plasma-treated, epoxy-based resin, polyamide-based resin, polycarbonate-based resin, nylon from the viewpoint of improving workability and adhesion to resin. It is preferable that surface treatments such as system resin, urethane foam S, silane coupling agent, titanate coupling agent are performed.
- the average fiber length of the carbon fibers in the molding material is usually 10 to 500 / in the stage after kneading with the resin.
- ⁇ ⁇ preferably 20 to 200 ⁇ m, more preferably 30 to 130 ⁇ m.
- the average fiber length of the carbon fiber in the molding material is 10 m or more, the mechanical strength increases, and when it is 250 ⁇ m or less, molding becomes easy.
- the average fiber length of the carbon fibers in the present invention is, for example, added with a solvent that dissolves rosin, for example, acetone so that the molded material in a crushed B-stage (semi-cured) state is 10% by mass. Soak for 24 to 48 hours to dissolve the greaves, then cast onto a flat glass plate, and randomly reveal the length of all carbon fibers present in a 1mm square frame It means the peak position of the fiber length distribution obtained by measuring with a mirror and repeating this until the number of measurements reaches 100 or more.
- a solvent that dissolves rosin for example, acetone
- the average fiber diameter of the carbon fibers is usually 5 to 30 m, preferably 7 to 20 m, and more preferably 8 to 18 ⁇ .
- the inorganic substance used in the resin molding material of the present invention is silica, glass, wollastonite, fluorite, pearl, apatite, zirconia, mullite, alumina, clay, my strength, talc, zeolite, hydroxide ⁇ Aluminum, Magnesium hydroxide, Calcium carbonate, Barium sulfate, Magnesium borate, etc. can be used. These can be used as a mixture of two or more. Usually, it is preferably used in the range of 33 to 350 parts by mass.
- the blending amount is 33 parts by mass or more, the mechanical strength increases, and when it is 230 parts by mass or less, the wear resistance is improved.
- the blending amount needs to be adjusted depending on the hardness of the inorganic substance.
- Examples of the shape of the inorganic substance include powdery, granular, and fibrous substances.
- the shape of the inorganic substance it is preferable to use spherical particles rather than amorphous particles from the viewpoint of the wear resistance of the molding material and the fluidity of the molding material.
- the average particle size of the spherical particles is preferably 50 m or less, which is easily densely dispersed with the carbon material and soot or resin.
- the average particle size is 50 m or less, the size of the crushed powder becomes small, and the wear resistance effect increases.
- the shape of the inorganic substance is preferably fibrous from the viewpoint of the mechanical strength of the molding material.
- the molding material contains inorganic fibers, so that the mechanical properties of the molded product obtained are obtained. Strength is improved.
- the average fiber diameter of the inorganic fibers is not particularly limited, but is usually 5 to 50 / ⁇ ⁇ , preferably 6 to 40 ⁇ m, more preferably 6 to 30 ⁇ m.
- the average fiber length of the fibers is not particularly limited, but is usually 10 to 500 111, preferably 20 to 200 111, more preferably 30 to 130 ⁇ m at the stage after kneading with the resin. m.
- the resin molding material of the present invention preferably contains at least one kind selected from silica, glass, and wollastonite (Mohs hardness 4 to 5) force as an inorganic substance.
- a balance force such as crushing strength, size of crushed powder, hardness, and spherical force is more preferable.
- glass fiber is preferable.
- the average fiber diameter of the glass fiber is not particularly limited, but is usually 6 to 15 / ⁇ ⁇ .
- workability at the stage of forming a molding material can be improved.
- the average fiber length of the glass fiber is not particularly limited, a chopped strand type of 1 to 6 mm, preferably 1 to 5 mm, more preferably 1 to 4 mm is usually used before kneading.
- average fiber length 1S is usually in the range of 10 to 500 ⁇ m, preferably 20 to 200 ⁇ m, more preferably 30 to 130 ⁇ m when kneaded with rosin. Therefore, workability, moldability, and strength of the molded body can be improved.
- the wollastonite is preferably combined in an amount of 100 to 200 parts by mass with respect to 100 parts by mass of the resin.
- the carbon material and the inorganic material are densely dispersed on the wear surface of the molded product.
- the wear powder that also generates the adhesion carbon material force easily adheres uniformly to at least one of the resin and the inorganic material exposed on the wear surface.
- the wear powder generated from the adherent carbon material coats the entire wear surface uniformly, and the lubricity of the carbon contained in the wear powder acts, so the wear resistance effect can be enhanced. it can.
- the blending ratio of inorganic substance and adhesive carbon substance is
- the value obtained by dividing the mass part of the inorganic substance with respect to 100 parts by mass of the resin by the mass part of the adherent carbon substance with respect to 100 parts by mass of the resin is usually in the range of 0.19 ⁇ ⁇ 233.
- the amount of carbon material contained in the wear powder is appropriate, so the wear powder can sufficiently coat the wear surface, and the lubricity of carbon is sufficiently exerted. Rises.
- inorganic materials are less expensive than pitch-based carbon fibers, which are one of adherent carbon materials, manufacturing costs can be reduced and mechanical strength is not reduced.
- the inorganic material contributes to the generation of wear powder of the adherent carbon material at the beginning of wear, and when the wear resistance effect appears, that is, the adherent carbon material coats the wear surface. After that, inorganic materials will not be worn out greatly, so inorganic materials contribute to maintaining mechanical strength.
- the mechanical strength of the molding material is considered to decrease with an increase in the content of the adhesive carbon substance because the mechanical strength of the adhesive carbon substance itself is low. Therefore, by using an inorganic substance and an adherent carbon substance in combination, the content of the adherent carbon substance can be reduced while maintaining a large wear resistance effect. When strength is obtained, it is a problem.
- silica or glass is used alone, but using it in combination also increases the point of balance with the wear resistance, fluidity and mechanical strength of the molding material. I like it.
- a combination of spherical silica and glass fiber is preferred.
- the strength of the molding material can be improved.
- the main filler of the molding material of the present invention is only wollastonite and an adherent carbon substance, the resulting molded article has a great effect of wear resistance, but may have insufficient mechanical strength.
- reinforcing fibers examples include the above-mentioned glass fibers, known rock wool, ceramic fibers, boron fibers, carbon carbide fibers, alumina fibers and other inorganic fibers, defibrated pulp, powder pulp, pulverized cloth, aromatic polyaramid fibers. And organic fibers such as metal fibers and the like.
- glass fibers are preferably added as reinforcing fibers as described above.
- the lubricating substance used in the present invention has the property of reducing the dynamic friction coefficient of the granular material. It is a substance.
- the lubricating substance examples include at least one resin selected from polyethylene resin, nylon resin, fluorine resin, and polypropylene resin, specifically, for example, low density polyethylene resin, medium density Polyethylene resin, high density polyethylene resin, nylon
- nylon 66 resin polytetrafluoroethylene (PTFE: tetrafluorinated styrene resin), trifluoride salt, ethylene resin, tetrafluorinated styrene hexafluoropropylene resin, propylene single weight A polymer, a propylene-ethylene copolymer, and a mixture thereof.
- PTFE polytetrafluoroethylene
- the resin molding material of the present invention when a lubricating material such as polyethylene resin, nylon resin, fluorine resin, or polypropylene resin is used as the resin, it is necessary to add a lubricating material. I don't need it.
- the lubricating substance is preferably fluorine resin, more preferably polytetrafluoroethylene.
- binder means a product obtained by physically pulverizing the lubricating substance, or a product formed into a spherical shape.
- the average particle diameter of the granular material of the lubricating substance is usually 2 to: L 10 m.
- the average particle size is 2 ⁇ m or more, handling is easy, and when it is 110 m or less, the formability and the appearance of the molded article are good.
- it is 2-130 ⁇ m, more preferably 40-: LOO ⁇ m.
- the blending amount of the lubricating substance is usually preferably 0.2 to 35 parts by mass, more preferably 1 to 25 parts by mass, and more preferably 3 to 17 parts by mass with respect to 100 parts by mass of the resin.
- the blending amount is 0.2 parts by mass or more, an abrasion resistance effect is obtained, and when it is 35 parts by mass or less, moldability is good.
- the molding material of the present invention contains an adherent carbon substance and an inorganic substance, when both are used in combination, the wear surface has smoothness and slipperiness even when a lubricating substance is not added.
- Abrasion resistance is dramatically improved by the synergistic effect of the substance and the lubricating substance.
- the wear resistance effect of the lubricating substance is presumed as follows to promote the synergistic effect of the adherent carbon fiber and the inorganic substance.
- the abrasion powder generated by abrasion the abrasion powder derived mainly from the adherent carbon substance adheres to the friction surface and functions as an abrasion resistant coating.
- the wear-resistant coating itself is more slippery and the wear-resistant effect is improved.
- the addition amount of the lubricating substance is a combination of an adherent carbon substance and an inorganic substance, so that the wear resistance is drastically improved while maintaining a small amount of mechanical strength, moldability and workability.
- the increase in cost due to the addition of the lubricating substance can be reduced.
- the resin molding material of the present invention includes, in addition to the components described above, stearates such as calcium stearate, magnesium stearate, and magnesium stearate within the range not impairing the object of the present invention, carnauba.
- Release agents such as wax, polyfunctional phenolic compounds such as catechol and bisphenol A, sulfonic acids such as ptoluenesulfonic acid and pphenolsulfonic acid, carboxylic acids such as benzoic acid, salicylic acid, oxalic acid and adipic acid, Metal complexes such as cobalt ( ⁇ ) acetylylacetonate, aluminum (III) acetylylacetonate, zirconium (IV) acetylylacetonate, calcium oxide, cobalt oxide, magnesium oxide, iron oxide, etc.
- Metal oxides calcium hydroxide, imidazole, diazabicycloundecene, phenolphosphonic acid, etc. Chemical aid, Titanium oxide, Bengala, Power Pigment black, Molybdenum red, Phthalocyanine blue and other pigments, Lubricating agents such as molybdenum disulfide, Polyester resin, Polyurethane resin, Polyamide resin, Polybutadiene, Styrene butadiene Styrene copolymer, poly (acetate butyl resin), styrene iso Elastomers such as a plane copolymer and the like can be blended.
- Lubricating agents such as molybdenum disulfide, Polyester resin, Polyurethane resin, Polyamide resin, Polybutadiene, Styrene butadiene Styrene copolymer, poly (acetate butyl resin), styrene iso Elastomers such as a plane copolymer and the like can be blended.
- various additives such as resin, curing agent, carbon material, inorganic material, lubricating material, other inorganic material, reinforcing fiber, mold release agent, curing aid, pigment, etc. are added and mixed uniformly before heating It can be obtained by kneading with a kneader such as a kneader, a kneader or a twin screw extruder alone or a combination of a roll and another mixer and then pelletizing with a pulverizer or granulator.
- a kneader such as a kneader, a kneader or a twin screw extruder alone or a combination of a roll and another mixer and then pelletizing with a pulverizer or granulator.
- the carbon fiber used was again subjected to an adhesion test.
- Injection molding and press molding were performed at a mold temperature of 180 ° C and a curing time of 1 minute.
- the adhesion of the carbon material was measured at the central portion of the surface on which the load is applied on a flat plate made of glass without fixing irregularities on the base at room temperature (25 ° C)! Place 10 to 30 mg of carbon material, move the carbon material back and forth 4 cm back and forth continuously 100 times while applying a load of 3 kgfZcm 2 (0.294 MPa), then use cotton gauze cloth on the glass plate. It is reciprocated 10 times with a load of 10 g (98 mN) to completely remove the carbon material remaining in powder form on the surface of the glass plate, and 0.1% of X with respect to the total mass X of the carbon material placed on the glass plate. It was judged that the carbon material with a mass% or more remaining on the surface of the flat plate had adherence, and that with less than 0.1% by mass had no adhesion.
- Butanol replacement method using specific gravity bottle CFIS R 7222, How to measure physical properties of graphite material Method
- Powder X-ray diffraction measurement was performed using an X-ray diffractometer (RINT, manufactured by Rigaku Corporation).
- the carbon material was powdered, packed flat in the concave part of a quartz sample holder, used as a measurement sample, the X-ray source was set to Cu- ⁇ ⁇ -ray, the output was set to 40 kV, and 20 mA. Measurements were made on standard silicon (SRM640c) under the same conditions.
- the fiber length is 10% by weight of the crushed molding material in the B-stage. Add acetone, soak for 24 to 48 hours, dissolve the grease part, and then cast into a glass plate without unevenness. Randomly measure the length of all carbon fibers in the lmm square frame using a microscope, and repeat this until the number of measurements reaches 100 or more, and obtain the peak position of the fiber length distribution obtained. It was.
- test piece thickness 4 mm, width 10 mm, length 80 mm
- Tensilon manufactured by Shimadzu Corporation.
- Measurement conditions are span distance; 64 mm, head speed: 2 mm / min.
- test piece molded according to JIS K 6911 was measured with a Charpy impact tester manufactured by Tokyo Shiki Co., Ltd.
- a cylindrical wear wheel (rotor, stainless steel, diameter 18mm, width 10mm, specific gravity 7.86) comes in contact with two specimens (stators) symmetrically at the upper part of the wear wheel, and a load of 3kg is 2kg. It was installed so as to apply an even force to the contact part. After rotating the rotor for 10 hours at 60 rpm, the value obtained by dividing the worn mass of the rotor and the stator by the specific gravity of each material of the rotor and the stator was obtained.
- the surface of the stator after the sliding wear test was observed with a scanning electron microscope and evaluated.
- Table 1 shows the results of a carbon material adhesion test.
- the raw materials shown in Table 2 were used, blended at the blending ratios shown in Tables 3 and 4, and heated and kneaded to obtain molding materials.
- Example 13 the components excluding the carbon fibers were blended, heated and kneaded, and then the mixture was pulverized and the carbon fibers were mixed with a mixer to obtain a molding material.
- each molding material was injection molded into various test pieces, and the above-mentioned evaluation was performed on the molded products.
- Example 13 was press-molded and the molded product was evaluated.
- the carbon fiber used was again subjected to an adhesion test.
- Examples 1 to 13 are carbon materials having no adhesion (the true specific gravity and the half-width ratio (Tl) / (T2) of the X-ray diffraction peak are outside the scope of the present application) As compared with Comparative Examples 1 to 4 and 13 using Comparative Example 5 and Comparative Examples 5 to 12 containing no carbon substance, the wear resistance is excellent.
- Example 13 the injection molding property is excellent except for Example 13 in which the carbon fiber length after kneading is long.
- Examples 1 to 3 including wollastonite are superior in wear resistance compared to other examples, and in particular, Example 1 including a lubricating material is the most excellent in wear resistance. .
- the mechanical strength and the wear resistance effect are improved by the synergistic effect of wollastonite and the adhering carbon substance, and the addition of a small amount of a lubricating substance further increases the wear resistance effect. It is clear that will improve.
- the resin molding material of the present invention has an abrasion resistance that does not impair the mechanical strength due to the coexistence of the adhering carbon substance, inorganic substance, and lubricating substance in the resin. It became clear that it was extremely superior.
- glass fiber or the like as a reinforcing fiber, it has better mechanical strength.
- the resin molding material of the present invention is suitable as a material for sliding parts made of resin.
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Abstract
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Priority Applications (4)
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JP2007544207A JP4957554B2 (ja) | 2005-11-11 | 2006-11-10 | 樹脂成形材料 |
EP06832517.4A EP1947146B1 (en) | 2005-11-11 | 2006-11-10 | Resin molding material |
US12/092,838 US7772317B2 (en) | 2005-11-11 | 2006-11-10 | Resin molding material |
CN2006800413703A CN101300308B (zh) | 2005-11-11 | 2006-11-10 | 树脂成形材料 |
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JP2005-327421 | 2005-11-11 | ||
JP2005327421 | 2005-11-11 | ||
JP2006101786 | 2006-04-03 | ||
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JP2006146699 | 2006-05-26 | ||
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US (1) | US7772317B2 (ja) |
EP (1) | EP1947146B1 (ja) |
JP (1) | JP4957554B2 (ja) |
KR (1) | KR101014446B1 (ja) |
CN (1) | CN101300308B (ja) |
TW (1) | TWI404755B (ja) |
WO (1) | WO2007055338A1 (ja) |
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Also Published As
Publication number | Publication date |
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KR101014446B1 (ko) | 2011-02-14 |
KR20080053523A (ko) | 2008-06-13 |
TWI404755B (zh) | 2013-08-11 |
JPWO2007055338A1 (ja) | 2009-04-30 |
CN101300308B (zh) | 2011-09-21 |
EP1947146A1 (en) | 2008-07-23 |
CN101300308A (zh) | 2008-11-05 |
EP1947146A4 (en) | 2011-04-06 |
EP1947146B1 (en) | 2016-10-05 |
US7772317B2 (en) | 2010-08-10 |
US20090227723A1 (en) | 2009-09-10 |
JP4957554B2 (ja) | 2012-06-20 |
TW200728371A (en) | 2007-08-01 |
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