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WO1988001630A1 - Materiau composite renforce par barbes - Google Patents

Materiau composite renforce par barbes Download PDF

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Publication number
WO1988001630A1
WO1988001630A1 PCT/JP1987/000656 JP8700656W WO8801630A1 WO 1988001630 A1 WO1988001630 A1 WO 1988001630A1 JP 8700656 W JP8700656 W JP 8700656W WO 8801630 A1 WO8801630 A1 WO 8801630A1
Authority
WO
WIPO (PCT)
Prior art keywords
whiskers
composite material
whisker
reinforced composite
graphite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP1987/000656
Other languages
English (en)
Japanese (ja)
Inventor
Kohei Arakawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikkiso Co Ltd
Original Assignee
Nikkiso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nikkiso Co Ltd filed Critical Nikkiso Co Ltd
Priority to JP62-505198A priority Critical patent/JPH0689156B2/ja
Publication of WO1988001630A1 publication Critical patent/WO1988001630A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • C08K7/06—Elements
    • 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

Definitions

  • the present invention relates to a whisker-reinforced composite material, and more particularly, to a whisker-reinforced composite material excellent in wear resistance and lubricity.
  • materials used under severe sliding conditions are made of aluminum or aluminum alloy with carbon fiber or aluminum.
  • Combination with fiber, alumina fiber, or ceramic whiskers has improved the layer.
  • SiC whiskers are extremely wear-resistant.
  • lubricating agents with excellent lubricity have the following conditions: (1) no interaction with the mating material during friction, no cohesion, (2) strong strength of itself, friction 3
  • the whiskers of the SiC whiskers are not 3 as described above. If there is a problem with the condition of
  • graphite whiskers are inferior in wear resistance to SiC ⁇ whiskers.
  • ⁇ , 2 and 3 are superior to whiskers and follow the other whiskers. unforgivable.
  • the purpose of this sprouting is to solve the above problems and to provide a whisker reinforced composite material having excellent wear resistance and excellent lubricity.
  • 1 no interaction occurs with the counterpart material during friction, for example, no adhesion occurs, and 2 the strength of itself is large.
  • An object of the present invention is to provide a disc-reinforced composite material having properties.
  • the gist of the present invention to achieve the above object is to combine a graphite whisker with another whisker in a composite reinforcing material having a plurality of whiskers in a matrix. It is a whisker-composite reinforced material characterized by having.
  • a fiber obtained by heat-releasing a vapor-grown carbon fiber and the above-mentioned vapor-grown carbon fiber in an inert gas (hereinafter, may be simply referred to as a heat-treated fiber).
  • a heat-treated fiber a fiber obtained by heat-releasing a vapor-grown carbon fiber and the above-mentioned vapor-grown carbon fiber in an inert gas
  • either one of the vapor-grown carbon fiber and the heat-treated fiber may be used alone, or both may be used in combination. If either one of the two is used, heat-treated fibers are preferred over simple vapor-grown carbon fibers. The reason is that the heat-treated fiber is superior in the conditions (1) and (2) of the lubricant.
  • vapor-grown carbon fiber or the heat-treated fiber it is preferable to further perform a surface treatment.
  • Preferred surface treatments include, for example, reoxidation treatment with air, oxidation treatment with air, and the like.
  • examples of the vapor-grown carbon fiber include a substrate-grown carbon fiber and a fluidized-gas-grown carbon fiber, and a fluid-vapor-grown carbon fiber is preferable.
  • Fluid vapor-grown carbon fibers have rounded ends, so that when dispersed in the matrix, for example, the cause of stress concentration is reduced.
  • Such a fluidized gas-phase grown carbon fiber is disclosed in, for example,
  • JP-A-54338 a production method characterized by ripening a mixed gas of a gas of a carbon compound and an organic transition metal compound and a carrier gas is disclosed in JP-A-60-181313.
  • a production method characterized by heating a mixed gas of a gas of carbon monoxide, an organic transition metal compound, and a gear carrier gas, and in addition thereto, Japanese Patent Application Laid-Open No. S0-185818 It can be obtained by the production method described in, for example, JP-A-60-216816.
  • the vapor-grown carbon fiber in the present invention is not limited to the one obtained by the above-described production method.
  • the compound serving as a carbon source is used as a carbon fiber in a suspended state by the catalytic action of a transition metal.
  • the heat-treated fiber can be produced by heating the vapor-grown fiber to a high temperature of 2000 ° C or higher, preferably 2800 ° C or higher.
  • the heat treatment is usually performed in an atmosphere of an inert gas such as nitrogen or argon.
  • the time required for the heat treatment is more than 5 minutes, but usually about 30 minutes.
  • the graphite whiskers preferred in the present invention have a diameter of lOit m or less, preferably 0.05 to 2.0 ⁇ .m and an aspect ratio of 3000 or less, preferably 200 or less.
  • the strain with the matrix may be large at the stage of compounding, and even if the diameter is within the above range.
  • the aspect ratio exceeds 3,000, a reflow with strong entanglement among whiskers is formed.
  • the dimensions of the whiskers other than the graphite whisker are, like the above-mentioned graphite whisker, preferably 10 mm or less in diameter, more preferably 0.05 to 2 mm. Hi it m, and its ass The cut ratio is preferably less than 3000 ⁇ , more preferably less than 200.
  • the whisker-reinforced composite material according to the present invention is obtained by dispersing a mixture of the graphite whiskers and other whiskers in a matrix. Particularly, in the whisker-reinforced composite material according to the present invention, it is preferable to add and mix the mixture in the matrix. Graphite whiskers and other whiskers may be combined separately. In short, the whisker composite reinforced material according to the present invention is not particularly limited as long as the graphite whiskers and other whiskers are mixed in the matrix. There is no.
  • the volume ratio of graphite whiskers to other whiskers is usually 1: 4 to 9: 1, preferably 1: 2 to 3: 1.
  • the matrix is not particularly limited, but includes, for example, polyolefin resins such as polyethylene and polypropylene, and nylon resin. 6, Nylon 66, Nylon 1-8, Nylon 1 11 and Nylon 1 S10, etc., polyamide resins, polyformaldehyde and formaldehyde Polyacetal resins such as ethylene oxide copolymers, polycarbonates, thermoplastic polyester molding materials, polyphenylene oxide, polysulfone, polyethylethyl ketoke , Epoxy resin, polyurethane resin, polyethylene sulfide, polyethylene sulfide, and polytetrafluoroethylene Fluorocarbon resin such as tetrafluorocarbon Synthetic resin, aluminum, alloy of aluminum and other metals, copper and copper alloys, Fe and Fe alloys, Ni and Ni alloys, Ti and Ti alloys, Mg and metals such as Mg alloy, or natural rubber, pig diethyl Ngomu, Ne options Les Ngomu, rubbers such as s
  • preferred matrices are synthetic resins such as polyolefin resins, polyamide town resins, epoxy resins, polyacetal birches, and fluororesins.
  • Metals such as real mini, alloys of aluminum and other metals, are particularly preferred are ultra-high molecular weight polyethylene, nylon-SS, polyacetal, epoxy resin and Synthetic resins such as fluorine-based resins and alloys such as aluminum alloys.
  • the volume fraction of this disc-composited composite in the disc-reinforced composite material of the disc is usually 0.1-30%, preferably. Between 2 and 20%. If the volume ratio is as low as 0.1%, the effect of blending the graphite whiskers with other whiskers may not be sufficient, and if the volume ratio is as high as 30%, the wiping force may be insufficient.
  • the compounding and dispersing of the composite reinforcement in the matrix can be performed by means known in the art to which this type of technology belongs.
  • a graphite whisker As a graphite whisker, vapor-grown carbon fiber with a diameter of 0.2 m and an average length of about 53 itm is heat-treated at 2800 ° C for 30 minutes, and then surfaced with reflex nitric acid for 5 hours. The processed one was used.
  • the graphite whiskers and SiC ⁇ whiskers having an average diameter of 0.3 / tm and an average length of 110 / tm are sung at a ratio of 1: 1 by volume, Add alcohol and mix well with a mixer. Thereafter, the alcohol was evaporated. Then, in a pelletizer, a pellet containing Nylon-66 and the mixed whisker such that the mixed whisker has a volume ratio of 8%.
  • a composite material was manufactured.
  • the pellet-like composite material was formed into a plate-like body by an injection molding method, and a square test piece of lOmm x lOmm was cut out from the plate-like body. This test piece was subjected to an abrasion test using a pure iron disk.
  • the change in weight of the electronic balance before and after the experiment was measured to determine the specific abrasion ⁇ , which was 0.035 X 10 " 7 ⁇ 3 / ⁇ .
  • the specific wear amount was 0.050 ⁇ 10 ⁇ 7mi3 / nimN.
  • a specific wear was 0.10X10-1 ⁇ 2a / aiN, except that the whisker was not used and only the Ni C3-66 was used.
  • Example 1 and Comparative Examples 1 to 3 When the results of Example 1 and Comparative Examples 1 to 3 are combined, the specific wear can be reduced by mixing Nylon-6S with the whiskers, thereby improving the abrasion resistance.
  • a comparison of the case with only the graphite whiskers and the case with only the SiC ⁇ whiskers shows that the graphite whiskers are not as abrasion-resistant as the SiC ⁇ whiskers.
  • the whiskers obtained by mixing the graphite whiskers and the whiskers were SiC whiskers. It can be seen that the abrasion resistance was improved more than in the case of only the ska, and a synergistic effect was achieved.
  • a graphite whisker As a graphite whisker, a vapor-grown carbon weave cone with a diameter of 0.2 ⁇ L m and an average length of about 53 was heat-treated at 2800 ° C for 30 minutes, and further reduced with refluxing acid for 5 hours. Surface treatment was used.
  • the graphite whiskers and the Si 3 N 4 force, having an average diameter of 0.2 pu na and an average length of, are manufactured in a 1: 2 volume ratio window. Alcohol was added and the mixture was sufficiently stirred with a mixer, and then the alcohol was evaporated. Further, the mixed whisker is dispersed in an aluminum alloy (AC8A) so that the volume ratio of the mixed wheel force is 15%, and the whisker-reinforced aluminum is dispersed. (FRM) manufactured.
  • AC8A aluminum alloy
  • This FRM was cut out into a size of 40 ⁇ 40 ⁇ 4 mm to obtain a test piece. Abrasion tests were performed using a pure iron bottle of ⁇ > 4 as the mating material.
  • the specific wear was determined by measuring the weight change with a direct-view electronic balance before and after the experiment and found that the wear of the test piece was 0.4 X 10-7a surpassing 3 / a.
  • Example 2 was Jitsu ⁇ similarly rollers, the specific wear rate was 0.7 X 10- 7 na 3 / ⁇ .
  • Example 3 Vapor-grown carbon fibers with a diameter of 0.5 ia and an average length of about 100 a as graphite whiskers were heat-treated at 2800 ° C for 30 minutes, and surface-treated with reflex concentrated nitric acid for 3 hours. Used. The whiskers and the SiC whiskers having an average diameter of 0.2 ⁇ a and an average length of 90 iL m were mixed at a volume ratio of 3: 1. Alcohol was added to the mixture, and the mixture was stirred well with a mixer, and then the alcohol was evaporated. Three types of composite materials were prepared from the mixed steel and epoxy birch oil (LY-556, manufactured by Ciba-GaiGi).
  • a round groove having an outer diameter of 4 na was cut out from the composite material, and the characteristics of friction with a rotating disk of pure Fe were evaluated.
  • Table 1 shows the results at a load of 20N, a friction speed of 20ca / sec, and a friction distance of 2.
  • Example 3 The same test as in Example 3 was performed on the resin alone and the composite material including only one kind of whisker.
  • the whisker-composite material does not damage the mating material and is extremely promising as a friction material.
  • the graphite whiskers and the other whiskers are combined and dispersed in the matrix, so that only the other whiskers are matrixed.
  • the second component when the second component is added for the purpose of compensating for its disadvantage while retaining the excellent properties of the first component, the disadvantage of the first component is improved by the second component
  • the combination of the graphite whiskers and the other whiskers are eliminated. It is noteworthy that the excellent abrasion resistance possessed is further enhanced and the lubricity, which is a drawback of other scars, is improved.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Reinforced Plastic Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

Matériau composite renforcé par barbes dans lequel deux ou plusieurs types de barbes sont incorporés dans une matrice, les barbers étant composées aussi bien de graphite que d'autres barbes. Ce matériau présente une excellente résistance à l'abrasion et d'excellentes propriétés lubrifiantes.
PCT/JP1987/000656 1986-09-04 1987-09-03 Materiau composite renforce par barbes Ceased WO1988001630A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-505198A JPH0689156B2 (ja) 1986-09-04 1987-09-03 ウィスカー強化複合摺動材料

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61/209156 1986-09-04
JP20915686 1986-09-04

Publications (1)

Publication Number Publication Date
WO1988001630A1 true WO1988001630A1 (fr) 1988-03-10

Family

ID=16568242

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1987/000656 Ceased WO1988001630A1 (fr) 1986-09-04 1987-09-03 Materiau composite renforce par barbes

Country Status (1)

Country Link
WO (1) WO1988001630A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644233A1 (fr) * 1993-08-12 1995-03-22 The Goodyear Tire & Rubber Company Pneus renforcés par des fibres de graphite et procédé pour incorporer de fibres de graphite dans un élastomère
WO2019177372A1 (fr) 2018-03-14 2019-09-19 (주)알테오젠 Anticorps se liant spécifiquement à folr1 et utilisations associées
WO2019209073A1 (fr) 2018-04-27 2019-10-31 사회복지법인 삼성생명공익재단 Procédé de bioadhérence à base magnétique par fixation de bille magnétique à une cellule
WO2020032784A1 (fr) 2018-08-10 2020-02-13 주식회사 유틸렉스 Liaison du récepteur antigénique chimérique à hla-dr, et cellule car-t
CN120058381A (zh) * 2025-04-24 2025-05-30 株洲万融新材科技有限公司 一种高强石墨与Si3N4陶瓷的复合方法及其应用

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56164842A (en) * 1980-05-23 1981-12-18 Toray Industries Carbon fiber reinforced thermoplastic resin molding
JPS58127761A (ja) * 1982-01-25 1983-07-29 Dai Ichi Seiko Co Ltd 有機繊維で強化された高比重複合材料
JPS58194777A (ja) * 1982-05-11 1983-11-12 東海カ−ボン株式会社 ウイスカ−強化炭素質複合材の製造方法
JPS5969500A (ja) * 1982-10-12 1984-04-19 Shin Etsu Chem Co Ltd ウイスカ−組成物およびその製造方法
JPS6082645A (ja) * 1983-10-12 1985-05-10 Toyoda Autom Loom Works Ltd 繊維強化金属複合材料
JPS60131948A (ja) * 1983-12-20 1985-07-13 Nippon Denso Co Ltd 繊維強化金属複合材料
JPS60200863A (ja) * 1984-03-21 1985-10-11 三菱マテリアル株式会社 窒化珪素基セラミツクス
JPS61283625A (ja) * 1985-06-07 1986-12-13 Sumitomo Chem Co Ltd 繊維強化複合材料
JPS627737A (ja) * 1985-07-03 1987-01-14 Ube Ind Ltd ハイブリツド繊維強化プラスチツク複合材料

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56164842A (en) * 1980-05-23 1981-12-18 Toray Industries Carbon fiber reinforced thermoplastic resin molding
JPS58127761A (ja) * 1982-01-25 1983-07-29 Dai Ichi Seiko Co Ltd 有機繊維で強化された高比重複合材料
JPS58194777A (ja) * 1982-05-11 1983-11-12 東海カ−ボン株式会社 ウイスカ−強化炭素質複合材の製造方法
JPS5969500A (ja) * 1982-10-12 1984-04-19 Shin Etsu Chem Co Ltd ウイスカ−組成物およびその製造方法
JPS6082645A (ja) * 1983-10-12 1985-05-10 Toyoda Autom Loom Works Ltd 繊維強化金属複合材料
JPS60131948A (ja) * 1983-12-20 1985-07-13 Nippon Denso Co Ltd 繊維強化金属複合材料
JPS60200863A (ja) * 1984-03-21 1985-10-11 三菱マテリアル株式会社 窒化珪素基セラミツクス
JPS61283625A (ja) * 1985-06-07 1986-12-13 Sumitomo Chem Co Ltd 繊維強化複合材料
JPS627737A (ja) * 1985-07-03 1987-01-14 Ube Ind Ltd ハイブリツド繊維強化プラスチツク複合材料

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644233A1 (fr) * 1993-08-12 1995-03-22 The Goodyear Tire & Rubber Company Pneus renforcés par des fibres de graphite et procédé pour incorporer de fibres de graphite dans un élastomère
WO2019177372A1 (fr) 2018-03-14 2019-09-19 (주)알테오젠 Anticorps se liant spécifiquement à folr1 et utilisations associées
WO2019209073A1 (fr) 2018-04-27 2019-10-31 사회복지법인 삼성생명공익재단 Procédé de bioadhérence à base magnétique par fixation de bille magnétique à une cellule
WO2020032784A1 (fr) 2018-08-10 2020-02-13 주식회사 유틸렉스 Liaison du récepteur antigénique chimérique à hla-dr, et cellule car-t
CN120058381A (zh) * 2025-04-24 2025-05-30 株洲万融新材科技有限公司 一种高强石墨与Si3N4陶瓷的复合方法及其应用

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