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WO2005118730A1 - Matériau de revêtement aqueux pour élément coulissant et élément coulissant - Google Patents

Matériau de revêtement aqueux pour élément coulissant et élément coulissant Download PDF

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Publication number
WO2005118730A1
WO2005118730A1 PCT/JP2005/010236 JP2005010236W WO2005118730A1 WO 2005118730 A1 WO2005118730 A1 WO 2005118730A1 JP 2005010236 W JP2005010236 W JP 2005010236W WO 2005118730 A1 WO2005118730 A1 WO 2005118730A1
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WO
WIPO (PCT)
Prior art keywords
water
sliding member
sliding
based paint
coating film
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/JP2005/010236
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English (en)
Japanese (ja)
Inventor
Masanobu Tanaka
Mutsumi Yanagi
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.)
Nihon Parkerizing Co Ltd
Original Assignee
Nihon Parkerizing 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 Nihon Parkerizing Co Ltd filed Critical Nihon Parkerizing Co Ltd
Priority to JP2006514142A priority Critical patent/JP4852415B2/ja
Publication of WO2005118730A1 publication Critical patent/WO2005118730A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • C09D161/04—Condensation polymers of aldehydes or ketones with phenols only
    • C09D161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • C09D5/028—Pigments; Filters
    • 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
    • C10M173/00—Lubricating compositions containing more than 10% water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/061—Carbides; Hydrides; Nitrides
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/16—Paraffin waxes; Petrolatum, e.g. slack wax
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • 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
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/04—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions obtained from monomers containing carbon, hydrogen, halogen and oxygen
    • 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
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/06—Perfluoro polymers
    • C10M2213/062—Polytetrafluoroethylene [PTFE]
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/055—Particles related characteristics
    • C10N2020/06—Particles of special shape or size
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08—Resistance to extreme temperature
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/015—Dispersions of solid lubricants

Definitions

  • the present invention relates to a water-based paint for a sliding member and a sliding member.
  • thermoplastic resins having excellent wear resistance such as polyamide resins and polyacetal resins
  • special engineering plastics such as polyimide resin and polyamideimide resin are used for sliding parts that require heat resistance.
  • Thermosetting resins such as phenolic resins are used.
  • these resins do not exhibit lubricity and cannot be used unless they are lubricated or otherwise lubricated.
  • Patent Document 1 proposes a polytetrafluoroethylene resin composition filled with carbon fibers and the like, but the one containing carbon fibers has improved mechanical strength, , It was difficult to obtain sufficient sliding characteristics.
  • a composition using phenolic resin uses a soft metal such as aluminum as a mating material of a sliding member because the surface of a molded article obtained is relatively hard. Then, there is a problem that the partner material is worn.
  • Patent Document 2 proposes a fluorine resin composition that is suitably used for a soft metal mating member and a sliding component member or the like in which self-abrasion is reduced. Powder filling or melt mixing is performed in the preparation of the product, and a firing process at 360 to 390 ° C. is required to obtain a molding material, which has a problem that the processing temperature is high. Since such a composition for a sliding member is based on a powder or a solvent, it needs to be fired or volatilize the solvent.
  • Patent Document 1 JP-A-2002-317089
  • Patent Document 2 JP-A-6-25499
  • the present invention provides a sliding member that exhibits excellent sliding resistance even at high temperatures, does not wear a mating material even when a soft metal is used as a partner material, and has a simple working process. And a paint used for the same.
  • the present inventors have conducted intensive studies to achieve the above object, and as a result, by adding a specific fluorine-containing copolymer to a water-based paint containing a heat-resistant resin and a lubricant component.
  • the present inventors have found that a sliding member having a coating film on its surface exhibits excellent sliding resistance even at high temperatures and suppresses abrasion of a mating material, thereby completing the present invention. Further, the present inventor has further found that the addition of urethane resin results in excellent toughness of a coating film and excellent adhesion to a substrate.
  • the present invention provides the following water-based paints for sliding members (1) to (8) and the sliding members of (9) and (10).
  • Molybdenum disulfide boron nitride, graphite, polytetrafluoroethylene, wax and at least one kind of lubricant component (B) selected from a group consisting of a fatty acid salt and
  • An aqueous paint for a sliding member wherein the components (A) to (C) are dissolved or dispersed in the water.
  • the sliding member using the water-based paint for a sliding member of the present invention exhibits excellent sliding resistance even at a high temperature, and suppresses abrasion of a mating material.
  • the water-based paint for sliding members of the present invention has a simple work process, and has a good work environment in consideration of global environmental conservation.
  • the water-based paint for a sliding member of the present invention and the sliding member using the same have extremely high industrial utility value.
  • the water-based paint for a sliding member of the present invention comprises a heat-resistant resin (A), molybdenum disulfide, At least one lubricant component (B) selected from the group consisting of nitrogen, graphite, polytetrafluoroethylene, wax and a salt of a fatty acid, fluorofluorin, and vinyl having a hydrophilic group or a hydrophilic chain.
  • a water-based paint for a sliding member comprising a copolymer (C) with a compound and water, and wherein the components (A) to (C) are dissolved or dispersed in the water. .
  • the heat-resistant resin (A) used in the present invention is not particularly limited as long as it dissolves or disperses in water.
  • examples thereof include phenol resin, polyamideimide resin, silicone resin, and silicone resin. And epoxy resin.
  • phenolic resin is preferred because the coating film becomes hard and can be obtained at low cost.
  • the type and structure of the phenol resin are not particularly limited, but need to be dissolved or dispersed in water.
  • a water-soluble resol type phenolic resin is preferably exemplified.
  • a water-soluble resol type phenol resin it is possible to stabilize water solubility and to make the sliding resistance of the coating film particularly excellent. Or those that also have two nuclear strength are preferred.
  • the heat-resistant resin (A) may be used alone or in combination of two or more.
  • the lubricant component (B) used in the present invention imparts lubricity, and has a group strength of molybdenum disulfide, boron nitride, graphite, polytetrafluoroethylene, wax and a fatty acid salt. At least one selected.
  • polytetrafluoroethylene having excellent continuous heat-resistant temperature characteristics and exhibiting the lowest friction coefficient among these solid lubricants is preferable.
  • the particle size of polytetrafluoroethylene is not particularly limited, but it is preferable to use particles having an average particle size of 0.1 to 5 / ⁇ , and the average particle size is 0.1. It is more preferable to use particles having a particle size of about 1 / ⁇ .
  • the polytetrafluoroethylene is preferably present in the aqueous coating composition for a sliding member of the present invention in a form of being stably dispersed.
  • a known surfactant for stable dispersion be able to.
  • an aqueous dispersion in which polytetrafluoroethylene particles are dispersed in the presence of an anionic or nonionic surfactant can be used.
  • the wax is not particularly limited in structure, type and the like, but a synthetic wax is preferably exemplified in that it has an effect of extremely reducing the friction coefficient of a coating film.
  • those that are stable in water and have excellent mechanical strength of the coating film are preferable.
  • Specific examples include microcrystalline wax, polyethylene wax, polypropylene wax, and carnauba wax. It is preferable that these are mixed with other components in the form of a disposable material and then incorporated into the water-based paint for sliding members of the present invention.
  • the type of the fatty acid salt is not specified, but, for example, at least one selected from the group consisting of a fatty acid having 12 to 26 carbon atoms and zinc, calcium, norium, aluminum, magnesium, sodium and lithium. Those obtained by reacting with a metal are preferred. Among them, stearates are preferred.
  • (B) / (A) 0.02-0 in terms of the ratio of the ratio of the lubricant component (B) to the heat-resistant resin (A) and the solid content mass ratio. 8 is preferred 0.1 to 0.3 is more preferred.
  • Z (A) 0.02 or more, the lubrication performance becomes more excellent.
  • the value of (8) is 0.8 or less, the mechanical strength becomes more excellent, so that a better sliding resistance can be obtained. Further, the properties of the copolymer (C) described later can be obtained. And functions appear more effectively.
  • the copolymer (C) used in the present invention is a copolymer of fluorofluorin and a vinyl compound having a hydrophilic group or a hydrophilic chain.
  • Fluoroolefin is a compound in which at least one hydrogen atom of olefin is substituted with a fluorine atom, and one or more hydrogen atoms may be substituted with a chlorine atom.
  • compounds having 2 to 4 carbon atoms such as tetrafluoroethylene, chlorofluoroethylene, trifluoroethylene, bi-lidene fluoride, hexafluoropropylene, pentafluoropropylene, etc. Preferred examples are given. These may be used alone or in combination of two or more.
  • hydroxy group for example, hydroxy group, carboxy group, sulfo group, salts thereof
  • a hydrophilic group such as a group of (for example, an alkali metal salt) or a belief conjugate having a hydrophilic chain such as polyethylene oxide, hydroxyalkyl butyl ether, hydroxyalkyl butyl ester, etc. These may be used alone or in combination of two or more.
  • the proportion of units based on the full O Roo Lev-in in the copolymer (C) is preferably Ru 30-70 mole 0/0 der. Within the above range, the balance between the sliding performance and flexibility of the coating film and the water solubility or water dispersibility becomes excellent.
  • the copolymer (C) may be any of an alternating copolymer, a block copolymer, and a random copolymer, but is preferably an alternating copolymer.
  • the copolymer (C) preferably has a number average molecular weight of about 1,000 to 5,000,000, more preferably a power of about 3,000 to 2,000,000! / ⁇ .
  • This copolymer (C) is known to exhibit excellent heat resistance due to a strong bonding force between a fluorine atom and a carbon atom, and to impart low frictional properties due to its low polarizability. .
  • the inventor of the present invention has come up with a surprising result during his research and development. That is, by blending a copolymer (C) with an aqueous paint containing a heat-resistant resin (A) and a lubricant component (B), the toughness and flexibility of the coating film are increased, and the coating film is broken against external force. ⁇ We found that it was possible to express its stiffness. In particular, it has been found that when a phenolic resin having poor toughness is used as the heat-resistant resin (A), the effect is large.
  • the present inventor can freely control the surface hardness of the coating film without impairing the adhesion between the coating film and the substrate by adjusting the blending amount of the copolymer (C), As a result, they found that when the mating material is a soft metal such as aluminum, it is possible to significantly reduce the wear of the mating material.
  • the present inventors performed cross-sectional analysis using an electron probe microanalyzer (EPMA: Electron Probe Microanalyser) in order to examine how the copolymer (C) was distributed in the coating film. As a result, a large amount of the copolymer (C) was detected in the surface layer of the coating film, and was hardly detected in the deep layer.
  • EPMA Electron Probe Microanalysis
  • the present inventor concluded that the copolymer (C) was present in a large amount on the surface layer of the coating film, so that it was possible to control the surface hardness with a relatively small amount of the copolymer, while the It was thought that, since there was not much in the vicinity, even if it was mixed in a large amount, there was little risk of impairing the adhesion to the base material.
  • the ratio of the copolymer (C) to the heat-resistant resin (A) and the solid content mass ratio, (C) / (A) It is preferably from 0.01 to 0.8, and more preferably from 0.1 to 0.3.
  • Z (A) is 0.01 or more, the coating film becomes more tough and the sliding resistance becomes more excellent.
  • the aqueous liquid paint for sliding members of the present invention has more excellent temporal stability. (If the value of 7 (8) is 0.8 or less, the flexibility of the coating film becomes appropriate and the sliding resistance becomes more excellent.
  • the water-based paint for a sliding member of the present invention contains water in addition to the components (A) to (C) described above, and the components (A) to (C) are dissolved or dispersed in the water. hand! /
  • the water-based paint for a sliding member of the present invention is a water-based paint in which components are dissolved or dispersed in water.
  • the sintering at a high temperature as described above is not required, and the volatilization of the solvent as in the case of using a solvent is unnecessary. Therefore, the work process is simple, and the global environment is considered, and the work environment is good.
  • the water-based paint for sliding members of the present invention preferably further contains a urethane resin (D) in addition to the above-mentioned components (A) to (C) and water.
  • a urethane resin (D) in addition to the above-mentioned components (A) to (C) and water.
  • the urethane resin (D) used in the present invention may be any one dissolved or dispersed in water.
  • a reaction product of a polyol such as a polyester polyol, a polyether polyol, or a polycarbonate polyol
  • a polyisocyanate such as an aliphatic polyisocyanate or an aromatic polyisocyanate, may be used.
  • urethane resin (D) When the urethane resin (D) is contained, a coating film having excellent adhesion to various substrates is obtained.
  • urethane resins having a hydrophilic component for example, a hydrophilic group such as a carboxy group or a sulfo group or a salt thereof in the main chain, are oriented to a polar substrate and have excellent adhesion to the substrate. A coating is obtained. In particular, it is possible to obtain a coating film having excellent adhesion to aluminum and a substrate having an alloying power thereof.
  • the urethane resin (D) preferably has a high glass transition point and a high melting temperature in that the sliding resistance of the coating film is particularly excellent at high temperatures.
  • the melting temperature of the urethane resin is preferably 200 ° C. or higher.
  • the urethane resin for the heat-resistant resin (A) is used.
  • Ratio power (D) / (A) 0.01 to 1.5, preferably 0.1 to 1.0, more preferably 0.1 to 1.0.
  • Z (A) 0.01 or more, the adhesiveness to the substrate is excellent.
  • Z (A) is 1.5 or less, better sliding resistance can be obtained.
  • the water-based coating composition for a sliding member of the present invention may contain various components in addition to the components (A) to (C) and water and optionally the component (D) as long as the object of the present invention is not impaired.
  • Additives can be included.
  • fillers are included for the purpose of mechanical properties (tensile strength, wear resistance, lubricity, toughness, etc.), thermal properties (heat resistance, thermal shock resistance, etc.), thickening of coating films, etc. be able to.
  • a surfactant, a thickener, and the like can be contained for the purpose of improving the leveling property, suppressing cissing, preventing dripping, and the like.
  • a pigment may be included for coloring purposes.
  • an organic solvent such as alcohol can be contained within a range not to impair the object of the present invention.
  • Examples of the filler include titanium oxide, zinc oxide, aluminum oxide, iron oxide, tin oxide, fumed silica, colloidal silica, calcium hydroxide, aluminum hydroxide, magnesium hydroxide, and calcium carbonate.
  • Examples of the surfactant include a nonionic surfactant, an anionic surfactant, an amphoteric surfactant, and a cationic surfactant.
  • the nonionic surfactant is not particularly limited, and includes, for example, polyoxyethylene alkyl ether, alkylphenol ether, and polyethylene glycol.
  • the anionic surfactant is not particularly limited, and includes, for example, sulfates, sulfonates, and phosphates.
  • amphoteric surfactant is not particularly limited, and examples thereof include an alkylamino fatty acid salt and an alkyl amine oxide.
  • the cationic surfactant is not particularly limited, and includes, for example, fatty acid amine salts and quaternary ammonium salts.
  • Examples of the thickener include an inorganic thickener and an organic thickener.
  • the inorganic thickener is not particularly limited, and examples thereof include finely divided silica.
  • examples of the fine silica include montmorillonite, paiderite, nontronite, sabonite, and hectorite.
  • the organic thickener is not particularly limited, and includes, for example, hydroxyethyl cellulose, carboxylmethyl cellulose, polyacrylamide, sodium polyacrylate, and polybutyl alcohol.
  • the pigment is not particularly limited, and examples thereof include zinc oxide, titanium oxide, antimony oxide, carbon black, graphite, cyanine black, iron oxide, iron oxide, ultramarine blue, and phthalocyanine green.
  • the water-based paint for sliding members of the present invention has a coating film that exhibits excellent sliding resistance even at high temperatures, and does not cause abrasion of the mating material even when a soft metal is used as the mating material.
  • the water-based paint for a sliding member of the present invention is a water-based paint
  • the working process is simple. is there. Furthermore, considering the global environment conservation, the working environment is good.
  • the water-based paint for sliding members of the present invention is suitably used for various sliding members.
  • the sliding member of the present invention is a sliding member having on its surface a coating film formed of the water-based paint for a sliding member of the present invention.
  • the amount of the copolymer (C) is large in the surface layer of the coating film and small in the deep layer. As a result, it is considered that a moderate surface hardness and excellent adhesion to the base material and the coating film are obtained. Therefore, in the sliding member of the present invention, it is preferable that the amount of the copolymer (C) in the coating film is very large inside and outside of the coating. That is, it is preferable that the film is an inclined coating film.
  • the thickness of the coating film is not particularly limited, but is preferably 1 to 150 m, more preferably 10 to 100 m.
  • the thickness of the coating film is 1 ⁇ m or more, the sliding resistance becomes more excellent.
  • the thickness of the coating film is 150 m or less, V, a good coating appearance without so-called rough surface can be easily obtained.
  • a metal material or a resin material can be suitably used as a material of a base material for forming a coating film.
  • a metal material or a resin material can be suitably used.
  • soft metal materials such as aluminum, aluminum alloy, copper, and copper alloy are preferable.
  • the substrate is preferably formed into a coating film after the cleaning treatment.
  • the cleaning treatment can improve the adhesion between the substrate and the coating film.
  • the method of the cleaning treatment is not particularly limited, and examples thereof include shot blasting, alkali cleaning, and acid cleaning. These can be performed by a known method.
  • the manufacturing method of the sliding member of the present invention is not particularly limited, and it can be obtained by forming a coating film of the water-based coating material for a sliding member of the present invention on the surface of a substrate by a conventionally known method.
  • a preferred method is to apply the water-based coating material for a sliding member of the present invention to the surface of the substrate after the cleaning treatment and then to dry the film to form a coating film on the surface of the substrate.
  • the application method is not particularly limited. For example, spray coating, dip coating, flow coating And bar coat.
  • spray coating dip coating
  • flow coating And bar coat When applying the water-based paint for a sliding member of the present invention, it is preferable to appropriately adjust the concentration so as to obtain a desired film thickness.
  • the drying method is not particularly limited, but hot air drying is generally used.
  • As the drying conditions for example, a method in which preliminary drying is 120 to 130, main drying is 150 to 200 ° C., and each is 30 to 90 minutes, is preferably mentioned.
  • the sliding member of the present invention is not particularly limited in use, and is suitable for, for example, sliding parts of pneumatic equipment, machine tools, office equipment, automobiles, motorcycles, aircraft, ships, railways, home appliances, and the like. Used for Among them, rotors, cylinders, gears, bearings, and pumps for machine tools, which are sliding parts that require heat resistance; pistons, transmissions, and camshafts for automobile-related parts; suitable for scrolling home appliances such as refrigerators and air conditioners Used for
  • the sliding member of the present invention has a coating film formed of the water-based paint for a sliding member of the present invention, it exhibits excellent sliding resistance even at high temperatures, and uses soft metal as a mating material. Even when used, it does not wear the mating material.
  • Water-soluble resole type phenol resin consisting mainly of mono- and di-nucleated methyl syrup with methylol (component (A)) 100 parts by mass (solid content), water-dispersible PTFE (component (B), average particles Diameter 0.2 m) 20 parts by mass (solid content) and a water-dispersed copolymer (component (C)), a compound having a hydrophilic chain of tetrafluoroethylene, cyclotrifluoroethylene, and hydroxybutyl ether a copolymer of things, full O Roo reflex and in-units and Bulle ether units have alternating copolymer, a copolymer proportion of units based on full O Roo reflex in is 50 mole 0/0 A number-average molecular weight of 1,000,000, a particle diameter of 0.1 to 0.2 m) and 20 parts by mass (solid content) to prepare a water-based paint for a sliding member.
  • component (A) 100 parts by mass (solid content
  • Aluminum alloy (A4032) plate 70 x 150 mm in size and 1.5 mm in thickness was prepared, and after washing, the aqueous coating material for a sliding member obtained above was bar-coated.
  • pre-drying is performed at 130 ° C for 30 minutes, and then main drying is performed at 180 ° C for 30 minutes to form a 30-m-thick coating film on the surface of the specimen to obtain a sliding member.
  • main drying is performed at 180 ° C for 30 minutes to form a 30-m-thick coating film on the surface of the specimen to obtain a sliding member.
  • a sliding member was obtained in the same manner as in Example 1 except that the mass ratio of each component was as shown in Table 1.
  • Water-soluble resol type phenol resin (component (A)) Instead of 100 parts by mass (solid content), A water-soluble novolak-type phenol resin into which ethanolamine was introduced ((A) component, number average molecular weight: 3,000) Except that 100 parts by mass (solid content) was used, the same method as in Example 1 was used. A moving member was obtained.
  • Water-soluble resole type phenol resin consisting mainly of mono- and di-nucleated methyl syrup with methylol (component (A)) 100 parts by mass (solid content), water-dispersible PTFE (component (B), average particles Diameter 0.2 m) 20 parts by mass (solid content) and water-dispersed copolymer (component (C), a compound having a hydrophilic chain of tetrafluoroethylene, chlorofluoroethylene and hydroxybutyl ether) a copolymer of things, full O Roo reflex and in-units and Bulle ether units have alternating copolymer, a copolymer proportion of units based on full O Roo reflex in is 50 mole 0/0 , Number average molecular weight: 1,000,000, particle size: 0.1 to 0.2 m) 20 parts by mass (solid content) and an ionic water-based polyurethane resin ((D) component, polyether polyol aliphatic) Polyisocyanate type
  • Water-dispersible PTFE (B) component, average particle size 0.2; ⁇ ⁇ ) Instead of 20 parts by mass (solid content), water-dispersible polypropylene wax ((B) component, average particle size 0.5 m)
  • a sliding member was obtained in the same manner as in Example 15 except that 20 parts by mass (solid content) was used.
  • Example 17 Instead of 20 parts by mass (solid content) of water-dispersed PTFE ((B) component, average particle size 0.2; ⁇ ), barium stearate powder ((B) component, average particle size 5 ⁇ m) 20 mass A sliding member was obtained in the same manner as in Example 15 except that the part was used.
  • a sliding member was obtained in the same manner as in Example 15 except that the mass ratio of each component was as shown in Table 1.
  • Example 1 A water-dispersed copolymer ((C) component, number average molecular weight: 1,000,000, particle size: 0.1 to 0.2 ⁇ m) Example 1 was repeated except that 20 parts by mass (solid content) was used. A sliding member was obtained in the same manner as described above.
  • a sliding member was obtained in the same manner as in Example 1, except that 20 parts by mass (solid content) of water-dispersed PTFE (component (B), average particle size 0.2 m) was not used.
  • Water-dispersed PTFE (B) component, average particle size 0.2 m) 20 parts by mass (solid content) and water-dispersed copolymer ((C) component, number average molecular weight 1, 000, 000, particle size 0) .1 ⁇ 0.2 ⁇ 20
  • B component, average particle size 0.2 m
  • C water-dispersed copolymer
  • a sliding member was obtained in the same manner as in Example 1 except that a force using parts by mass (solid content) was not used.
  • Example 8- The coating film of each sliding member obtained in L1 was subjected to an accelerating voltage of 15 kV, a sample current of 0.05 ⁇ m, and a beam diameter of 1 ⁇ m using an EPMA (Electron Beam Probe Microscope Analyzer). Under the condition of ⁇ , mapping analysis of the cross section of the coating film was performed using fluorine as a marker.
  • EPMA Electro Beam Probe Microscope Analyzer
  • the pencil hardness was measured in accordance with the provisions of JIS 5600-5: 4: 1999 "Pull hardness (pencil method)”.
  • the adhesion of the coating film of the sliding member was evaluated by the following two methods.
  • a cross-cut method was applied to the coating film of the sliding member according to JIS 5600 5-6: 1999 "Adhesion (cross-cut method)" to evaluate the coating film adhesion.
  • the weight of the coating film of the sliding member shall be in accordance with the “DuPont type” of JIS 5600-5: 3: 1999 “Water resistance to falling”, weight: 500g, shooting type: radius 6.35mm, Table: An impact deformation test was performed on a flat surface with a weight height of 100 mm or 500 mm to evaluate the adhesion of the coating film.
  • ⁇ indicates a force that did not cause peeling at a weight height of 500 mm
  • ⁇ indicates a force that did not cause peeling at a weight height of 100 mm
  • X indicates a force that caused peeling at a weight height of 100 mm.
  • the coating film of the sliding member was subjected to a sliding test using a surface property measuring device (Tribogear) under the following conditions, and the sliding performance was evaluated by the number of times of sliding until the scratch reached the base material of the specimen.
  • Tribogear surface property measuring device
  • Indenter ball (diameter 5. Omm)
  • Test piece temperature 130 ° C
  • a sliding test was performed under the same conditions as above, and the sliding marks of the specimen after sliding 1000 times were measured for roughness using a three-dimensional surface roughness measuring device.
  • a sliding test was performed under the same conditions as above except that a ball made of pure aluminum was used as the indenter. The appearance of the indenter after sliding 2000 times was visually observed and observed with a metallographic microscope, and the indenter's scratch resistance was checked. evaluated.
  • the water-based paint for sliding members of the present invention (Example 123) is excellent in liquid stability, coating film adhesion and sliding performance at high temperatures, and is excellent at high temperatures.
  • the soft metal indenter did not hurt.
  • urethane resin (D) is contained (Example 15 To 23) were particularly excellent in coating film adhesion (impact deformation resistance).

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  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Il est prévu un élément coulissant obtenu par simple processus d’usinage, présentant une excellente durabilité de glissement à hautes températures et ne provoquant pas l’abrasion du matériau objet lorsque ledit matériau objet est un métal doux. Il est également prévu un matériau de revêtement servant à un tel élément coulissant. Il est prévu spécifiquement un matériau de revêtement aqueux pour éléments coulissants contenant une résine thermorésistante (A), au moins un composant lubrifiant (B) sélectionné parmi le groupe consistant en bisulfure de molybdène, en nitrure de bore, en graphites, en polytétrafluoroéthylènes, en cires et sels d’acide gras, un copolymère (C) de fluorooléfine et un composé de vinyle ayant un groupe hydrophile ou une chaîne hydrophile, et de l’eau. Dans ce contexte, les composants (A)-(C) sont dissous ou dispersés dans l’eau.
PCT/JP2005/010236 2004-06-04 2005-06-03 Matériau de revêtement aqueux pour élément coulissant et élément coulissant Ceased WO2005118730A1 (fr)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104356847A (zh) * 2014-11-04 2015-02-18 浙江红高梁木业有限公司 一种新型耐腐蚀的强化地板涂层及其制备新方法
CN109535971A (zh) * 2018-11-22 2019-03-29 海洋化工研究院有限公司 一种耐磨自润滑涂料及其制备方法
JP2022540621A (ja) * 2019-07-09 2022-09-16 アプライド グラフィーン マテリアルズ ユーケー リミテッド 水性コーティング
CN120020183A (zh) * 2023-11-20 2025-05-20 中国石油天然气集团有限公司 一种石油钻采用膨胀管内壁喷涂制剂及其制备方法与应用

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Publication number Priority date Publication date Assignee Title
JPH04227778A (ja) * 1990-04-25 1992-08-17 Ntn Eng Plast Corp 摺動部用塗料組成物
WO1998051495A1 (fr) * 1997-05-16 1998-11-19 Daikin Industries, Ltd. Materiau composite aux proprietes coulissantes
JP2004204073A (ja) * 2002-12-25 2004-07-22 Daikin Ind Ltd 被覆用組成物、塗膜及び被覆物品

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04227778A (ja) * 1990-04-25 1992-08-17 Ntn Eng Plast Corp 摺動部用塗料組成物
WO1998051495A1 (fr) * 1997-05-16 1998-11-19 Daikin Industries, Ltd. Materiau composite aux proprietes coulissantes
JP2004204073A (ja) * 2002-12-25 2004-07-22 Daikin Ind Ltd 被覆用組成物、塗膜及び被覆物品

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104356847A (zh) * 2014-11-04 2015-02-18 浙江红高梁木业有限公司 一种新型耐腐蚀的强化地板涂层及其制备新方法
CN109535971A (zh) * 2018-11-22 2019-03-29 海洋化工研究院有限公司 一种耐磨自润滑涂料及其制备方法
JP2022540621A (ja) * 2019-07-09 2022-09-16 アプライド グラフィーン マテリアルズ ユーケー リミテッド 水性コーティング
JP7668024B2 (ja) 2019-07-09 2025-04-24 アプライド グラフィーン マテリアルズ ユーケー リミテッド 水性コーティング
CN120020183A (zh) * 2023-11-20 2025-05-20 中国石油天然气集团有限公司 一种石油钻采用膨胀管内壁喷涂制剂及其制备方法与应用

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