WO2020230618A1 - 撥水撥油部材及び撥水撥油部材の製造方法 - Google Patents
撥水撥油部材及び撥水撥油部材の製造方法 Download PDFInfo
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- WO2020230618A1 WO2020230618A1 PCT/JP2020/018024 JP2020018024W WO2020230618A1 WO 2020230618 A1 WO2020230618 A1 WO 2020230618A1 JP 2020018024 W JP2020018024 W JP 2020018024W WO 2020230618 A1 WO2020230618 A1 WO 2020230618A1
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- repellent
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- 0 C*(C)*N(C)C(C)=* Chemical compound C*(C)*N(C)C(C)=* 0.000 description 2
- MJSTWNARCDBQCB-UHFFFAOYSA-N CC(C1C=C1)(N)O Chemical compound CC(C1C=C1)(N)O MJSTWNARCDBQCB-UHFFFAOYSA-N 0.000 description 1
- AHWDQDMGFXRVFB-UHFFFAOYSA-N CN(C(N(C)C(N1C)=O)=O)C1=O Chemical compound CN(C(N(C)C(N1C)=O)=O)C1=O AHWDQDMGFXRVFB-UHFFFAOYSA-N 0.000 description 1
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- 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
- C09D5/002—Priming paints
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- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
- B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
- B05D5/086—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers having an anchoring layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/586—No clear coat specified each layer being cured, at least partially, separately
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/002—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds
- C08G65/005—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens
- C08G65/007—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens containing fluorine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/336—Polymers modified by chemical after-treatment with organic compounds containing silicon
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- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
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- 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
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
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- 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
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
- C09D171/02—Polyalkylene oxides
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- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/10—Glass or silica
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2201/00—Polymeric substrate or laminate
- B05D2201/02—Polymeric substrate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
- B05D2401/10—Organic solvent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
- B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
Definitions
- the present invention relates to a water- and oil-repellent member having excellent wear resistance and a method for producing the water- and oil-repellent member.
- the present invention has a function of containing silicon dioxide as a first layer on the surface of a base material. It has a film layer or a functional film layer with silicon dioxide as the uppermost layer, and has a layer formed by using an organosilicon compound having a plurality of silanol groups (hydroxyl bonds bonded to silicon atoms) in the molecule as the second layer.
- the present invention relates to a water-repellent oil-repellent member having a layer formed by using a fluorine-containing organosilicon compound as a third layer, and a method for producing the water-repellent oil-repellent member.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2011-1116947
- Patent Document 1 has the following average composition formula.
- the fluorooxyalkylene group-containing polymer composition represented by is disclosed.
- Rf 1 is -C d F 2d O- (d is an integer of 1 to 6 and may be different for each repeating unit), and divalent linear fluorooxy containing 5 to 100 repeating units.
- Rf 2 is a monovalent fluorine-containing group having F, H and a -CF 3 group or a -CF 2 H group at the end, and Q is a divalent organic group.
- Z is a 2- to 7-valent organopolysiloxane residue having a siloxane bond
- R is an alkyl or phenyl group having 1 to 4 carbon atoms
- X is a hydrolyzable group
- a is 2 or 3
- B is an integer of 1 to 6
- c is an integer of 1 to 5
- ⁇ is an integer of 0 or 1.
- Patent Document 1 Although the treatment agent proposed in Patent Document 1 exhibits relatively excellent durability, it is not sufficient, and it is difficult to obtain excellent adhesion particularly to resins, sapphires, ceramics and the like.
- a method for improving the adhesion a method of providing a SiO 2 layer as a primer layer by a dry method (evaporation method, sputtering method or CVD method) is disclosed (International Publication No. 2014/097388: Patent Document 2). It has been shown that this method can be used to form a water- and oil-repellent layer with excellent durability on a glass substrate, but it is sufficiently durable when subjected to rigorous reliability tests such as rubbing the surface with an eraser. Does not show.
- a polysilazane solution capable of providing a primer layer by a wet method is disclosed (International Publication No. 2010/038648: Patent Document 3). After applying the polysilazane solution, it reacts with water and is converted to silica glass. Although this method is superior to the dry method in that it does not use a vacuum process, it also does not show sufficient durability when subjected to rigorous reliability tests such as rubbing the surface with an eraser.
- the member provided with the water- and oil-repellent layer by the above method often has a surface resistance value larger than the surface resistance value of the base material, which causes a problem that it is easily charged. Therefore, various antistatic agents have been proposed, but from the viewpoint of adding an antistatic agent to the composition, the water and oil repellency and antifouling property of the surface are insufficient, and the water and oil repellent surface has high abrasion resistance. It is difficult to combine the properties with antistatic properties.
- the following documents can be mentioned as prior arts related to the present invention.
- the present invention has been made in view of the above circumstances, and forms a water-repellent oil-repellent member having excellent wear resistance and antistatic properties of an eraser, and a water-repellent oil-repellent layer having excellent antistatic properties for various substrates. It is an object of the present invention to provide a method for manufacturing a water-repellent and oil-repellent member.
- a functional film layer containing silicon dioxide as a main component or at least the outermost layer is silicon dioxide on at least one surface of the base material.
- a step of forming a film layer a step of wet-coating a solution containing an organic silicon compound having a plurality of silanol groups in the molecule and a solvent, and a step of evaporating the solvent to evaporate the solvent to form a primer layer on at least one surface of the base material.
- the solvent was evaporated, or the solvent was evaporated from the solution.
- Various groups can be obtained by a method having a step of dry-coating a hydrolyzable solvent-containing compound and a step of curing the hydrolyzable solvent-containing compound to form and laminate a water- and oil-repellent layer on the outer surface of the primer layer.
- the material includes a functional film layer containing silicon dioxide as a main component or at least a functional film layer (first layer) in which the outermost layer is silicon dioxide, and a plurality of silanol groups in the molecule on the outer surface of the functional film layer.
- a primer layer having a specific thickness containing an organic silicon compound as a main component and a specific thickness repellent having a cured product of a hydrolyzable fluorine-containing compound as a main component on the outer surface of the primer layer.
- An eraser having a water-repellent layer (third layer) and excellent in abrasion resistance and antistatic property (that is, the surface resistance value of the outer surface is 10 ⁇ / ⁇ or more lower than that in the case where the second layer is not provided.
- a water- and oil-repellent member is obtained, and the eraser is excellent in abrasion resistance and antistatic property (that is, the surface resistance value of the outer surface is 10 ⁇ / ⁇ or more as compared with the case where the second layer is not provided. It has been found that a water- and oil-repellent coating having a function of (lowering) can be stably and easily applied to various substrates, and the present invention has been made.
- the present invention provides the following water- and oil-repellent member and a method for manufacturing the water- and oil-repellent member.
- It has a functional film layer as a first layer on at least one surface of the base material, a primer layer as a second layer on the outer surface of the functional film layer, and further on the outer surface of the primer layer.
- the organosilicon compound having a plurality of silanol groups in the molecule is a hydrolyzed / partially condensate of tetraalkoxysilane.
- the hydrolyzable fluorine-containing compound has at least one hydrolyzable silyl group at the end of at least one molecular chain, and the hydrolyzable silyl group is an alkoxy group having 1 to 12 carbon atoms and 2 to 12 carbon atoms. Alkoxyalkoxy group, asyloxy group having 1 to 10 carbon atoms, alkenyloxy group having 2 to 10 carbon atoms, silyl group having halogen group or amino group, or silazane group [1] to [3].
- a hydrolyzable fluorine-containing compound is present in the molecule- (CF 2 ) d- O- (CF 2 O) p (CF 2 CF 2 O) q (CF 2 CF 2 CF 2 O) r (CF 2 CF 2 CF) 2 CF 2 O) s (CF (CF 3 ) CF 2 O) t- (CF 2 ) d-
- Fluorooxyalkylene having a divalent linear perfluorooxyalkylene polymer residue represented by) and having at least one hydrolyzable silyl group at the end of at least one molecular chain.
- the water- and oil-repellent member according to any one of [1] to [4], which is a group-containing organic silicon compound. [6] Described in any one of [1] to [5], wherein the hydrolyzable fluorine-containing compound is at least one selected from the fluorine-containing hydrolyzable organosilicon compounds represented by the following general formulas (1) to (5). Water and oil repellent material.
- Rf is-(CF 2 ) d- O- (CF 2 O) p (CF 2 CF 2 O) q (CF 2 CF 2 CF 2 O) r (CF 2 CF 2 CF 2 O) s (CF (CF 3 ) CF 2 O) t ⁇ (CF 2 ) d ⁇ is a divalent linear perfluorooxyalkylene polymer residue represented by t, and p, q, r, s, and t are independent of each other.
- A is a fluorine atom, a hydrogen atom, or a monovalent fluorine-containing group having a -CF 3 group, a -CF 2 H group, or a -CH 2 F group at the end, and Z and Z'are independently single-bonded or nitrogen.
- It is a divalent to 8-valent organic group which may contain an atom, an oxygen atom, a silicon atom, a phosphorus atom or a sulfur atom and may be substituted with fluorine, and W is a monovalent group having a hydrolyzable group at the terminal. It is an organic group. ⁇ and ⁇ are independently integers of 1 to 7, and ⁇ + ⁇ 2 to 8. ⁇ is an integer of 2 to 8.
- a solution containing a hydrolyzable fluorine-containing compound and a solvent is wet-coated on the outer surface of the layer and then the solvent is evaporated, or a hydrolyzable fluorine-containing compound obtained by evaporating the solvent from the solution is dry-coated.
- the water-repellent repellency according to any one of [1] to [8], which comprises a step and a step of curing the hydrolyzable solvent-containing compound to form and laminate a water-repellent oil-repellent layer on the outer surface of the primer layer.
- the "linear perfluorooxyalkylene polymer residue” means that divalent fluorooxyalkylene repeating units constituting the perfluorooxyalkylene structure of the main chain are linearly linked to each other.
- the individual divalent fluorooxyalkylene unit itself may be a fluorooxyalkylene unit having a branched structure such as-[CF 2 CF (CF 3 ) O]-. ..
- the present invention it is possible to form a water-repellent oil-repellent member that has both antistatic properties and a water-repellent oil-repellent surface and is excellent in eraser wear resistance.
- the method for manufacturing the water-repellent and oil-repellent member can be formed by a vacuum process or a wet (brush coating, spin coating, spray coating, gravure coating, die coating, bar coating, slit coating) process, and is applicable to various applications. However, it is particularly suitable for applications where a finger or an object touches the surface.
- touch panel displays flexible displays, housings for electronic devices, wearable terminals, glasses lenses, protective films, protective glass, glass for copiers, in-vehicle cameras, radar covers for automatic driving, quartz glass for manufacturing semiconductor products, etc.
- the water- and oil-repellent member of the present invention has a functional film layer as a first layer on at least one surface of the base material, and has a primer layer as a second layer on the outer surface of the functional film layer.
- an organosilicon compound which is a water- and oil-repellent member having a water- and oil-repellent layer as a third layer on the outer surface of the primer layer and in which the primer layer has a plurality of silanol groups in the molecule.
- the water-repellent and oil-repellent layer comprises a layer having a film thickness of 10 to 500 nm as a main component, and the water-repellent and oil-repellent layer comprises a layer having a film thickness of 0.5 to 50 nm containing a cured product of a hydrolyzable fluorine-containing compound as a main component.
- a functional film layer containing silicon dioxide as a main component or at least a functional film layer having silicon dioxide as the outermost layer is formed on the surface (at least one surface) of various substrates (first layer). Then, a solution containing an organic silicon compound having a plurality of silanol groups in the molecule and a solvent is wet-coated on the outer surface of the functional film layer, and then the solvent is evaporated to form a primer layer (second layer). -The solvent is evaporated after being laminated and a solution containing a hydrolyzable fluorine-containing compound and a solvent (water-repellent oil-repellent agent) is wet-coated on the outer surface of the primer layer, or the solution (water-repellent).
- a hydrolyzable fluorine-containing compound obtained by evaporating a solvent from an oil-repellent agent) is dry-coated, and the hydrolyzable fluorine-containing compound is cured to form a water-repellent oil-repellent layer (third layer) on the outer surface of the primer layer.
- -A primer layer (second layer) having a thickness of 10 to 500 nm containing an organic silicon compound having a plurality of silanol groups in the molecule as a main component is provided on the surface of various base materials by a laminating method or the like.
- a water-repellent oil-repellent member having a water-repellent oil-repellent layer (third layer) having a thickness of 0.5 to 50 nm and containing a cured product of a hydrolyzable fluorine-containing compound as a main component can be obtained on the surface.
- the base material applied in the present invention is not particularly limited, but resin, ceramic, metal, quartz, glass, sapphire, and diamond are particularly suitable.
- examples of the resin of the base material include thermoplastic resins and thermosetting resins, and specifically, the following are preferable.
- Aliper polymers such as cellloid, cellulose acetate, cellulose propionate, cellulose butyrate, triacetyl cellulose, 6-nylon, 6,6-nylon, 12-nylon, aromatic polyamide, ABS resin, AS resin, polystyrene, polyethylene Saturated polyesters (low density or high density), polyolefins such as polypropylene, cycloolefin polymers, polyvinyl chlorides, polyvinylidene chlorides, ethylene-vinyl acetate copolymers, polyvinyl alcohols, polyacetals, polycarbonates, polyethylene terephthalates, polybutylene terephthalates, etc.
- Aromatic polyester polyether ketone, polyether ether ketone, polysulfone, polyether sulfone, polyetherimide, polyarylate, polymethylpentene, ionomer, liquid crystal polymer, polyimide, polyamideimide, fluororesin, polyphenylene sulfide, (modified ) Polyphenylene oxide, thermoplastic resins such as thermoplastic polyurethanes, or polymers of epoxy resins, unsaturated polyesters, thermosetting polyurethanes, polyimides, diethylene glycol bisallyl carbonate (commonly known as CR-39), and (halogenated) bisphenol A.
- thermoplastic resins such as thermoplastic polyurethanes, or polymers of epoxy resins, unsaturated polyesters, thermosetting polyurethanes, polyimides, diethylene glycol bisallyl carbonate (commonly known as CR-39), and (halogenated) bisphenol A.
- the functional film layer (first layer) formed and laminated on at least one surface of the base material is a functional film layer such as a hard coat layer, an antireflection film layer, and an IR cut filter layer.
- the function of the functional film layer (first layer) is not limited to these, as long as the entire layer is mainly composed of silicon dioxide or at least the outermost layer of the layer is silicon dioxide.
- the thickness of the entire functional film layer (silicon dioxide layer) or the outermost layer of the functional film (silicon dioxide layer) may be preferably about 10 to 500 nm, more preferably about 10 to 150 nm.
- the functional film layer is specifically a hard coat layer containing a silicon dioxide layer as a main component, a hard coat having a two-layer structure in which a silicon dioxide layer is formed on the hard coat layer, or a hard coat having a laminated structure of three or more layers.
- An antireflection layer composed of a layer, a two-layer structure in which silicon dioxide is formed as the outermost layer on a substrate, or a laminated structure of three or more layers, a two-layer structure in which silicon dioxide is formed as the outermost layer on a substrate, or An IR cut filter layer or the like having a laminated structure of three or more layers.
- the primer layer (second layer) formed and laminated on the outer surface of the functional film layer is mainly composed of an organosilicon compound having a plurality of silanol groups in the molecule, preferably 50% by mass or more of the organosilicon compound. It contains a film having a thickness of 10 to 500 nm.
- the primer layer is formed, for example, by wet-coating a solution containing an organosilicon compound having a plurality of silanol groups in the molecule and a solvent on the outer surface of the functional membrane layer, and then evaporating and removing the solvent (). Can be laminated).
- the organosilicon compound having a plurality of silanol groups in the molecule preferably has two or more silanol groups, more preferably three or more, and further preferably four or more silanol groups in one molecule. If the number of silanol groups in the molecule is too small, the adhesion to the outer surface of the water-repellent oil-repellent layer (third layer) laminated on the outer surface of the primer layer (second layer) becomes poor, or the surface surface The resistance value may not decrease.
- the amount of silanol groups in the organosilicon compound having a plurality of silanol groups in the molecule is 0.002 to 0.042 mol / g, particularly 0.004 to 0.035 mol / g, and particularly 0.005 to 0.030 mol / g. It is preferably g.
- An organic silicon compound having a plurality of silanol groups in the molecule hydrolyzes an organic silicon compound having a plurality of hydrolyzable groups such as an alkoxy group such as a methoxy group and an ethoxy group and a halogen atom such as a chlorine atom.
- -It can be obtained by partial condensation.
- examples of the organic silicon compound having a plurality of hydrolyzable groups in the molecule include methyltrimethoxysilane, dimethyldimethoxysilane, phenyltrimethoxysilane, diphenyldimethoxysilane, tetramethoxysilane, tetraethoxysilane, and methyltriethoxysilane.
- the organosilicon compound having a plurality of silanol groups in the molecule the above-mentioned organosilicon compound such as organosilane having a plurality of hydrolyzable groups is hydrolyzed and then partially dehydrated and condensed. It is preferable to use a product (partially condensed product) which has been subjected to high molecular weight.
- the partial condensate includes a plurality of silanol groups (hydroxyl groups bonded to silicon atoms) in a molecule obtained by hydrolyzing an organic silicon compound such as organosilane having a plurality of hydrolyzable groups. It means an organopolysiloxane compound having a plurality of residual silanol groups in the molecule, which is obtained by partially dehydrating and condensing the having organosilane.
- the hydrolyzed / partially condensate of an organosilicon compound having a plurality of hydrolyzable groups in the molecule has a weight average molecular weight of 300 to 100,000. It is preferable, and more preferably 5,000 to 50,000.
- the weight average molecular weight can be determined, for example, as a polystyrene-equivalent value in gel permeation chromatography (GPC) analysis using toluene as a developing solvent (hereinafter, the same applies).
- organosilicon compound having a plurality of silanol groups in the molecule used in the present invention a hydrolyzed / partially condensate of tetraalkoxysilane such as tetramethoxysilane and tetraethoxysilane is particularly preferable.
- the organosilicon compound having a plurality of silanol groups in the molecule It is desirable to dilute the organosilicon compound having a plurality of silanol groups in the molecule with a solvent.
- a solvent for dissolving the organic silicon compound having a plurality of silanol groups in the molecule, alcohols such as methanol, ethanol, isopropanol and butanol, and ethers such as propylene glycol monomethyl ether and polyethylene glycol monopropyl ether are preferable, but in particular. It is not limited, and may be appropriately selected from the wettability with the first layer and the boiling point.
- the concentration of the organosilicon compound having a plurality of silanol groups in the molecule and the organosilicon compound having a plurality of silanol groups in the molecule in the solution containing the solvent is preferably 0.01 to 10% by mass, preferably 0.6 to 4%. Mass% is more preferred. If the concentration is too low, the uncoated portion will increase, and if the concentration is too high, secondary aggregation may occur between the silanol groups.
- an ultraviolet absorber such as a light stabilizer, an antioxidant, a leveling agent, a defoaming agent, a pigment, a dye, etc.
- Ingredients such as surfactants such as dispersants, antistatic agents, and antifogging agents may be used. It should be noted that these are composed of 50% by mass or more (50 to 100% by mass), particularly 80 to 100% by mass (that is,) of the organosilicon compound having a plurality of silanol groups in the molecule in the primer layer obtained by removing the solvent. It is preferable to add the above-mentioned arbitrary component in a range of 50% by mass or less (0 to 50% by mass), preferably 0 to 20% by mass).
- the solution containing an organic silicon compound having a plurality of silanol groups in the molecule and a solvent can be used for wet coating, particularly dipping, brush coating, spin coating, spray coating, gravure coating, die coating, bar coating, slit coating, sink coating and the like.
- a primer layer containing an organic silicon compound having a plurality of silanol groups in the molecule as a main component can be formed.
- heating may be performed at 40 to 500 ° C. for 10 seconds to 24 hours.
- the film thickness of the primer layer (second layer) formed and laminated on the outer surface of the functional film layer is 10 to 500 nm, preferably 30 to 400 nm, and particularly preferably 30 to 250 nm.
- the film thickness can be measured by a known method such as spectroscopic ellipsometry or X-ray reflectivity (hereinafter, the same applies).
- the water- and oil-repellent layer (third layer) formed and laminated on the outer surface of the primer layer is composed of a layer having a film thickness of 0.5 to 50 nm and containing a cured product of a hydrolyzable fluorine-containing compound as a main component. It will be.
- the water- and oil-repellent layer is cured by applying, for example, a solution (water- and oil-repellent agent) containing a hydrolyzable fluorine-containing compound and a solvent on the outer surface of the formed primer layer surface (second layer). Can be formed and laminated.
- hydrolyzable fluorine-containing compound examples include JP-A-2007-197425, JP-A-2007-297589, JP-A-2007-297543, JP-A-2008-088412, and JP-A-2008-144144.
- the hydrolyzable fluorine-containing compound will be described more specifically.
- hydrolyzable fluorine-containing compound at least one, preferably 1 to 14, more preferably 1 to 7 molecular chain terminals, a hydrolyzable silyl group (for example, a trialkoxysilyl group, At least 1 each, preferably 1 to 6 (silyl groups having 1 to 3 hydrolyzable groups such as alkoxy groups bonded to silicon atoms such as dialkoxy (organo) silyl group and alkoxy (diorgano) silyl group). , More preferably 1 to 4 (for example, having at least 1 hydrolyzable silyl group, preferably 1 to 20, more preferably 2 to 14, still more preferably 2 to 8 in one molecule).
- a hydrolyzable silyl group for example, a trialkoxysilyl group, At least 1 each, preferably 1 to 6 (silyl groups having 1 to 3 hydrolyzable groups such as alkoxy groups bonded to silicon atoms such as dialkoxy (organo) silyl group and alkoxy (diorgano)
- Carbons such as methoxymethoxy group and methoxyethoxy group having 2 to 12 carbon atoms, particularly alkoxyalkoxy group having 2 to 10 carbon atoms, acetoxy group, propionoxy group and other acyloxy group having 1 to 10 carbon atoms, vinyloxy group and isopropenoxy group.
- a halogen group such as an alkoxyoxy group, a chlor group, a bromo group, or an iodo group having a number of 2 to 10, or a hydrolyzable silyl group having 1 to 3 hydrolyzable groups such as a primary or secondary amino group, or silazane. More preferably, it is an organosilicon compound having a hydrolyzable silyl group such as a group and having a fluorine atom.
- the hydrolyzable fluorine-containing compound is preferably a compound having a fluorooxyalkylene group (that is, a monovalent or divalent perfluoropolyether residue) in the molecule.
- the fluorooxyalkylene group is a compound having a (poly) fluorooxyalkylene structure (divalent linear perfluorooxyalkylene polymer residue) in which a plurality of repeating units represented by -C j F 2j O- are bonded.
- j is an integer of 1 or more, preferably 1 to 6, more preferably 1 to 4).
- the repeating unit-C j F 2j O- may be either a linear type or a branched type.
- the following units may be mentioned, and two or more of these repeating units may be combined.
- the (poly) fluorooxyalkylene structure (divalent linear perfluorooxyalkylene polymer residue) particularly comprises-(CF 2 ) d- O- (CF 2 O) p (CF 2 CF 2 O).
- p, q, r, s and t are independently integers from 0 to 200, preferably p is an integer from 5 to 100, q is an integer from 5 to 100, r is an integer from 0 to 100, s is an integer from 0 to 50, and t is 0.
- the repeating units shown in parentheses may be randomly combined.
- d is independently an integer of 0 to 8, preferably an integer of 0 to 5, more preferably an integer of 0 to 2, and the unit may be linear or branched.
- p', q', r', s', and t' are independently integers from 1 to 200, and the total of p', q', r', s', and t'is 3. ⁇ 500.
- Each repeating unit shown in parentheses may be randomly combined.
- d' is an independently integer of 0-5, and the unit may be linear or branched. May be.
- the hydrolyzable organosilicon compound according to the present invention is more preferably a fluorine-containing hydrolyzable organosilicon compound represented by any of the following general formulas (1) to (5) (fluorine-containing hydrolyzable organosilicon compound). Is. One of these may be used alone, or two or more thereof may be used in combination. (A-Rf) ⁇ - ZW ⁇ (1) Rf- (ZW ⁇ ) 2 (2) Z'-(Rf-ZW ⁇ ) ⁇ (3) A-Rf-Q- (Y) ⁇ - B (4) Rf- (Q- (Y) ⁇ - B) 2 (5)
- Rf is ⁇ (CF 2 ) d ⁇ O ⁇ (CF 2 O) p (CF 2 CF 2 O) q (CF 2 CF 2 CF 2 O) r (CF 2 CF 2) CF 2 CF 2 O) s (CF (CF 3 ) CF 2 O)
- A is a fluorine atom, a hydrogen atom, or a monovalent fluorine-containing group having a -CF 3 group, a -CF 2 H group, or a -CH 2 F group at the end, and Z and Z'are independently single-bonded or nitrogen.
- It is a divalent to 8-valent organic group which may contain an atom, an oxygen atom, a silicon atom, a phosphorus atom or a sulfur atom and may be substituted with fluorine
- W is a monovalent group having a hydrolyzable group at the terminal. It is an organic group.
- ⁇ is an integer of 2 to 8, preferably 2 or 3.
- Q is a single-bonded or divalent organic group
- ⁇ is an independently integer of 1 to 10
- Y is a divalent organic group having a hydrolyzable group
- B is a hydrogen atom and carbon. It is an alkyl group of numbers 1 to 4 or a halogen atom.
- Rf is the above-mentioned (poly) fluorooxyalkylene structure (divalent linear perfluorooxyalkylene polymer residue)-(CF 2 ) d- O- (CF). 2 O) p (CF 2 CF 2 O) q (CF 2 CF 2 CF 2 O) r (CF 2 CF 2 CF 2 O) s (CF (CF 3 ) CF 2 O) t- (CF 2 ) d ⁇ , and the same as above can be exemplified.
- A is a fluorine atom, a hydrogen atom, or a monovalent fluorine-containing group having a -CF 3 group, a -CF 2 H group, or a -CH 2 F group at the end.
- a monovalent fluorine-containing group whose terminal is -CF 3 group, -CF 2 H group or -CH 2 F group specifically, -CF 3 group, -CF 2 CF 3 group, -CF 2 CF 2 a CF 3 group, -CH 2 CF (CF 3) -OC 3 F 7 group, -CH 2 OCF 2 CFH-OC 3 F 7 group and the like.
- -CF 3 groups, -CF 2 CF 3 groups, -CF 2 CF 2 CF 3 groups, and -CH 2 OCF 2 CFH-OC 3 F 7 groups are preferable.
- Z and Z' may independently contain a single bond or a nitrogen atom, an oxygen atom, a silicon atom, a phosphorus atom or a sulfur atom, and may be fluorine-substituted. It is a good 2- to 8-valent organic group.
- the organic group can be represented by (L) e- M (e is an integer of 1 to 7, preferably an integer of 1 to 3).
- L is a single bond, an oxygen atom, a sulfur atom, or a divalent organic group
- L of Z is both an Rf group and an M group (or W group).
- L of Z' is a linking group of M (or Rf group) and Rf group.
- the divalent organic group preferably, a diorganosylylene group such as an amide bond, an ether bond, a carbonyl bond, an ester bond or a dimethylsilylene group, -Si [OH] [(CH 2 ) f Si (CH 3 ) 3 ]
- a diorganosylylene group such as an amide bond, an ether bond, a carbonyl bond, an ester bond or a dimethylsilylene group, -Si [OH] [(CH 2 ) f Si (CH 3 ) 3 ]
- Is an unsubstituted or substituted divalent hydrocarbon group having 2 to 12 carbon atoms which may contain the above structure.
- Examples of the unsubstituted or substituted divalent hydrocarbon group having 2 to 12 carbon atoms include an ethylene group, a propylene group (trimethylene group, methylethylene group), a butylene group (tetramethylene group, methylpropylene group), and hexamethylene.
- Examples thereof include an alkylene group such as a group and an octamethylene group, an arylene group such as a phenylene group, and a combination of two or more of these groups (alkylene-arylene group, etc.). Further, it may be a group in which a part or all of hydrogen atoms bonded to carbon atoms of these groups are replaced with halogen atoms such as fluorine and iodine. Of these, an unsubstituted or substituted alkylene group or phenylene group having 2 to 4 carbon atoms is preferable.
- Examples of the divalent organic group of L include a group shown in the following structure or a group in which two or more of these are bonded.
- f is an integer of 2 to 4
- b is an integer of 2 to 6, preferably an integer of 2 to 4
- u and v are integers of 1 to 4
- g is an integer of 2 to 4. It is an integer and Me is a methyl group.
- M is a single bond or a 2- to 8-valent ((e + 1) -valent) organic group containing a nitrogen atom, a silicon atom, a carbon atom, a phosphorus atom or these.
- R 1 is an oxy having 1 to 3 carbon atoms which may interpose independently of each other, preferably an alkyl group having 1 to 3 carbon atoms, a hydroxyl group, and a diorganosiloxane structure having 2 to 51 silicon atoms.
- R 3 is independent of each other, preferably an alkyl group having 1 to 3 carbon atoms, an alkenyl group having 2 or 3 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, or a chloro group.
- R 4 is an aryl group having 6 to 10 carbon atoms such as an alkyl group having 1 to 3 carbon atoms and a phenyl group.
- M is a siloxane residue
- the number of silicon atoms is 2 to 51, preferably 2 to 13 silicon atoms, more preferably 2 to 11 silicon atoms, and further preferably 2 to 5 silicon atoms. It preferably has a linear, branched or cyclic organopolysiloxane structure.
- the organopolysiloxane is an unsubstituted or fluorine group having 1 to 8 carbon atoms, more preferably 1 to 4 carbon atoms, such as a methyl group, an ethyl group, a propyl group, a butyl group, and C 3 F 7- C 3 H 6-. Those having a substituted alkyl group or a phenyl group are preferable. Further, it may contain a silalkylene structure in which two silicon atoms are bonded by an alkylene group, that is, Si- (CH 2 ) n- Si. In the above formula, n is an integer of 2 to 6, preferably an integer of 2 to 4.
- M examples include those shown below. (In the formula, i is an integer of 1 to 20, c is an integer of 1 to 50, and Me is a methyl group.)
- W is a monovalent organic group having a hydrolyzable group at the terminal, and is preferably represented by the following formula.
- R is an alkyl group or a phenyl group having 1 to 4 carbon atoms
- X is a hydrolyzable group
- a is 2 or 3
- m is an integer of 0 to 10.
- examples of the hydrolyzable group of X include an alkoxy group having 1 to 12 carbon atoms such as a methoxy group, an ethoxy group, a propoxy group and a butoxy group, particularly an alkoxy group having 1 to 10 carbon atoms, a methoxymethoxy group and a methoxyethoxy group.
- R is an alkyl group such as a methyl group having 1 to 4 carbon atoms or an ethyl group, or a phenyl group, and the methyl group is particularly preferable.
- a is 2 or 3, and 3 is preferable from the viewpoint of reactivity and adhesion to the primer layer (second layer).
- m is an integer of 0 to 10, preferably an integer of 2 to 8, and more preferably 2 or 3.
- Examples of the structure represented by ⁇ ZW ⁇ in the formulas (1) to (3) include the following structures.
- L, R, X, f, c and a are as described above, m1 is an integer of 0 to 10, preferably an integer of 2 to 8, and m2 is an integer of 1 to 10, preferably. It is an integer of 2 to 8 and Me is a methyl group.
- Q is a single bond or a divalent organic group, and is a linking group of an Rf group and a Y group.
- the divalent organic group of Q preferably, a diorganosylylene group such as an amide bond, an ether bond, an ester bond, or a dimethylsilylene group, ⁇ Si [OH] [(CH 2 ) f Si (CH 3 ) 3 ) ]-(F is an integer of 2 to 4), which is an unsubstituted or substituted divalent organic group having 2 to 12 carbon atoms and may contain one or more selected from the group consisting of groups. It is preferably an unsubstituted or substituted divalent hydrocarbon group having 2 to 12 carbon atoms which may contain the above structure.
- the same group as the unsubstituted or substituted divalent hydrocarbon group having 2 to 12 carbon atoms exemplified in L may be exemplified. it can.
- Examples of the divalent organic group of Q include a group shown in the following structure.
- f is an integer of 2 to 4
- b is an integer of 2 to 6, preferably an integer of 2 to 4
- u and v are integers of 1 to 4
- g is an integer of 2 to 4. It is an integer and Me is a methyl group.
- Y is a divalent organic group having a hydrolyzable group independently of each other, and preferably has a structure represented by the following formula.
- R, X and a are as described above.
- K is an integer of 0 to 10, preferably an integer of 1 to 10, more preferably an integer of 2 to 8.
- h is an integer of 1 to 6.
- M' is an unsubstituted or substituted tri-octavalent, preferably trivalent or tetravalent hydrocarbon group, and some or all of the carbon atoms in the hydrocarbon group are silicon. It may be replaced with an atom, or a part or all of the hydrogen atom bonded to the carbon atom may be replaced with a halogen atom such as a fluorine atom.
- M' it is preferably a group represented by the following structure.
- M 1 is a diorganosylylene group such as a single-bonded, unsubstituted or substituted divalent hydrocarbon group having 1 to 6 carbon atoms or a dimethylsilylene group
- R 5 is a hydrogen atom or a methyl group having 1 to 6 carbon atoms, an ethyl group, It is a monovalent hydrocarbon group such as an alkyl group such as a propyl group.
- Examples of M 1 include a single bond, a phenylene group, a dimethylsilylene group, a tetrafluoroethylene group and the like. Further, examples of M 2 include those shown below. (In the formula, Me is a methyl group.)
- Examples of such Y include the following groups.
- k1 is an integer of 0 to 10, preferably an integer of 0 to 8
- k2 is an integer of 2 to 10, preferably an integer of 2 to 8
- Me is an integer of 2 to 8. It is a methyl group.
- ⁇ is an integer of 1 to 10, preferably an integer of 1 to 4, respectively.
- B is an alkyl group such as a hydrogen atom, a methyl group having 1 to 4 carbon atoms, an ethyl group, a propyl group and a butyl group, or a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. is there.
- fluorine-containing hydrolyzable organosilicon compound fluorine-containing hydrolyzable organosilicon compound represented by the above formulas (1) to (5) include the following structures.
- Me is a methyl group
- p1, q1, r1, s1, and t1 are independently integers of 1 to 200
- the total of p1, q1, r1, s1, and t1 is 3 to 500. Yes, each repeating unit shown in parentheses may be randomly combined.
- the fluorine-containing hydrolyzable organic silicon compound (fluorine-containing hydrolyzable organic silicon compound) represented by the general formulas (1) to (5) according to the present invention is a part of the hydrolyzable group (X).
- it may contain a compound in which all of them are hydrolyzed (a compound in which X is an OH group), and a compound in which some or all of these OH groups are condensed may be contained.
- the hydrolyzable fluorinated compound is preferably diluted with a solvent in advance, and the solvent is not particularly limited as long as it uniformly dissolves the hydrolyzable fluorinated compound.
- fluorine-modified aliphatic hydrocarbon solvents perfluoroheptane, perfluorooctane, etc.
- fluorine-modified aromatic hydrocarbon solvents (1,3-trifluoromethylbenzene, etc.
- fluorine-modified unsaturated hydrocarbon solvents perfluoroheptane, perfluorooctane, etc.
- fluorine-modified unsaturated hydrocarbon solvents (, etc.) Hexafluoroolefin, hexafluoropropentrimer)
- fluorine-modified ether solvent methyl perfluorobutyl ether, ethyl perfluorobutyl ether, perfluoro (2-butyl tetrahydrofuran), etc.
- a fluorine-modified solvent is desirable from the viewpoint of solubility and stability, and a fluorine-modified ether solvent and a fluorine-modified aromatic hydrocarbon solvent are particularly preferable.
- the solvent may be used alone or in combination of two or more.
- the solvent contains 0.01 to 50% by mass, preferably 0.03 to 10% by mass, and more preferably 0 of the hydrolyzable fluorine-containing compound in the water- and oil-repellent agent (solution containing the hydrolyzable fluorine-containing compound and the solvent). It is desirable to contain it in an amount of 0.05 to 1% by mass.
- the water- and oil-repellent agent containing the hydrolyzable fluorine-containing compound can be obtained by a known method such as a wet coating method (immersion method, brush coating, spin coating, spray, gravure coating, die coating, bar coating, slit coating) or a vapor deposition method. It can be applied to the substrate.
- the coating conditions and the like may be according to a conventionally known method, but since the primer layer is coated and formed by a wet coating method (wet method), a water-repellent oil-repellent agent containing a hydrolyzable fluorine-containing compound is also wet-coated. It is more efficient to apply by the construction method (wet method).
- the hydrolyzable fluorine-containing compound can be cured at room temperature (25 ° C.) in 1 to 24 hours, but may be heated at 30 to 200 ° C. for 1 minute to 1 hour in order to cure in a shorter time. .. Curing is preferably performed under humidification (50-90% RH) in order to promote hydrolysis.
- the surface of the primer layer on the base material is cleaned by plasma treatment, UV treatment, ozone treatment, etc., or treated to activate the surface. May be applied.
- the film thickness of the fluorine layer (water-repellent oil-repellent layer) of the water-repellent and oil-repellent member of the present invention is 0.5 to 50 nm, particularly preferably 1 to 20 nm. If the film thickness is too thick, the surface resistance value of the outer surface of the water- and oil-repellent layer may be high, and if it is too thin, the surface characteristics and wear resistance may not be sufficient.
- the surface resistance value of the outer surface of the water- and oil-repellent layer is 10 ⁇ / ⁇ or more lower than that in the case where the second layer is not provided. If the surface resistance value of the outer surface of the water- and oil-repellent layer is too high, electronic devices such as organic EL may malfunction, and the visibility of the surface deteriorates due to the adhesion of dust and the like, resulting in optical characteristics and texture. To spoil. In addition, the surface is easily soiled. In the present invention, the surface resistance value can be measured by a commercially available resistivity meter, for example, High Leicester UX MCP-HT800 manufactured by Mitsubishi Chemical Analytech Co., Ltd.
- the surface resistance value of the outer surface of the water-repellent oil-repellent layer can be 1.0 ⁇ 10 11 ⁇ / ⁇ or less, preferably 1.0 ⁇ 10 7 to 1.0 ⁇ 10 11 ⁇ / ⁇ . Yes, more preferably 1.0 ⁇ 10 8 to 9.8 ⁇ 10 10 ⁇ / ⁇ .
- the thickness of the primer layer containing an organosilicon compound having a plurality of silanol groups in the molecule as the second layer as a main component is 0.5 to 50 nm. Is preferable.
- the water- and oil-repellent member of the present invention thus obtained includes a car navigation system, a tablet PC, a smartphone, a foldable smartphone, a foldable smartphone, a flexible device, a digital camera, a digital video camera, a PDA, and a portable audio player.
- Car audio housings for game equipment, camera lenses, security cameras, in-vehicle lenses, glasses lenses, sunglasses, AR lenses, VR lenses, etc., endoscopes, scalpels, blood pressure monitors, X-ray CT, MRI, etc.
- Touch surface of medical equipment liquid crystal display, organic EL display, flexible device, etc., protective film, anti-reflection film, IR cut filter, compact disc, DVD, optical article such as Blu-ray disc, window glass of automobile, train, aircraft, etc. , Headlamp cover, headlight lens, tile, exterior wall building material, system kitchen, bath, shower head, faucet, range hood, other kitchen building materials, waiting room, artwork, body of transportation equipment, mirror, millimeter wave Examples include radar covers such as sensors.
- Me represents a methyl group.
- Examples 1 to 13 and Comparative Examples 1 to 9 As shown below, a test piece of a water-repellent oil-repellent member having a base material, a functional film layer, a primer layer and a water-repellent oil-repellent layer was prepared.
- a functional film layer 1 having a thickness of 100 nm was formed on the outer surface of the base material by sputtering silicon dioxide.
- the base material is dip-coated with a treatment solution obtained by diluting perhydropolysilazane with dibutyl ether to a solid content of 2.0% by mass, and then cured at 80 ° C./80% RH for 24 hours to remove the base material.
- a functional film layer 2 having a thickness of 96 nm was formed on the surface.
- the substrate was immersed in the treatment liquid for 30 seconds and then pulled up at 150 mm / min.
- Perhydropolysilazane which is the raw material of the functional membrane layer 2, reacts with moisture (moisture) in the atmosphere as it hardens to generate ammonia and dehydrogenate to form a SiO 2 (silicon dioxide) layer. Is what you are doing.
- a functional film layer 3 having a thickness of 10 nm was formed on the outer surface of the base material by sputtering silicon dioxide.
- the antireflection layer As the outermost layer of the antireflection layer formed on the surface of the base material, silicon dioxide was laminated by a sputtering method to form the functional film layer 4.
- the antireflection layer has a laminated structure of Nb 2 O 5 (12 nm), SiO 2 (34 nm), Nb 2 O 5 (116 nm), and SiO 2 (76 nm) from the substrate side.
- a primer layer was formed on the base material or the functional film layer by the method shown below.
- primer layer 1 The above-mentioned substrate is prepared by diluting a hydrolyzed / partially condensate of tetraethoxysilane (weight average molecular weight: 25,000, silanol group amount: 0.015 mol / g) with butanol to a solid content of 0.2% by mass. Is coated with a bar coater (Bar coater No. 2 manufactured by Daiichi Rika Co., Ltd.) and then dried at 80 ° C. for 1 minute to evaporate butanol to form a primer layer 1 of 10 nm on the outer surface of the base material. did.
- a bar coater Bar coater No. 2 manufactured by Daiichi Rika Co., Ltd.
- the above-mentioned substrate is prepared by diluting a hydrolyzed / partially condensate of tetraethoxysilane (weight average molecular weight: 25,000, silanol group amount: 0.015 mol / g) with butanol to a solid content of 0.78% by mass. After dipping coating (immersing the base material in the treatment liquid for 60 seconds and then pulling it up at 150 mm / min), it is dried at room temperature (25 ° C.) for 60 minutes to evaporate butanol and put it on the outer surface of the base material.
- the primer layer 2 was formed at 30 nm.
- the above-mentioned base material is prepared by diluting a hydrolyzed / partially condensate of tetraethoxysilane (weight average molecular weight: 25,000, silanol group weight: 0.015 mol / g) with butanol to a solid content of 2.0% by mass. After dipping coating (immersing the base material in the treatment liquid for 60 seconds and then pulling it up at 150 mm / min), it is dried at room temperature (25 ° C.) for 60 minutes to evaporate butanol and put it on the outer surface of the base material.
- the primer layer 3 was formed at 91 nm.
- the above-mentioned base material is prepared by diluting a hydrolyzed / partially condensate of tetraethoxysilane (weight average molecular weight: 25,000, silanol group amount: 0.015 mol / g) with butanol to a solid content of 4.0% by mass. After dipping coating (immersing the base material in the treatment liquid for 60 seconds and then pulling it up at 150 mm / min), it is dried at room temperature (25 ° C.) for 60 minutes to evaporate butanol and put it on the outer surface of the base material.
- the primer layer 4 was formed at 210 nm.
- primer layer 5 The above-mentioned substrate is prepared by diluting a hydrolyzed / partially condensate of tetraethoxysilane (weight average molecular weight: 25,000, silanol group amount: 0.015 mol / g) with butanol to a solid content of 0.1% by mass. Is coated with a bar coater (Bar coater No. 2 manufactured by Daiichi Rika Co., Ltd.) and then dried at 80 ° C. for 1 minute to evaporate butanol to form a primer layer 5 of 5 nm on the outer surface of the base material. did.
- a bar coater Bar coater No. 2 manufactured by Daiichi Rika Co., Ltd.
- the average film thickness of the water-repellent oil-repellent layer 2 calculated from the amount of F detected by the fluorescent X-ray apparatus (ZSXmini2 manufactured by Rigaku Co., Ltd.) was about 11 nm.
- a cured film (water- and oil-repellent layer) was formed by curing the solid content of the above, and a test piece was prepared.
- the average film thickness of the water-repellent oil-repellent layer 3 calculated from the amount of F detected by the fluorescent X-ray apparatus (ZSXmini2 manufactured by Rigaku Co., Ltd.) was about 15 nm.
- the average film thickness of the water-repellent oil-repellent layer 4 calculated from the amount of F detected by the fluorescent X-ray apparatus (ZSXmini2 manufactured by Rigaku Co., Ltd.) was about 13 nm.
- the average film thickness of the water-repellent oil-repellent layer 5 calculated from the amount of F detected by the fluorescent X-ray apparatus (ZSXmini2 manufactured by Rigaku Co., Ltd.) was about 13 nm.
- Examples 1 to 13 are excellent in water repellency and oil repellency, and are excellent in eraser wear resistance.
- the eraser wear resistance was less than 500 times, and the wear resistance was insufficient.
- Comparative Example 1 since the water-repellent and oil-repellent agent was applied directly on the hard coat layer, the initial water- and oil-repellent properties were poor.
- Comparative Example 2 since the primer layer was not provided, the abrasion resistance was not sufficient.
- the polysilazane layer was provided in the functional film layer, but the wear resistance was not sufficient because the primer layer was not provided.
- the primer layer was not provided and the type of water and oil repellent was changed, but the abrasion resistance was not sufficient.
- the thickness of the primer layer was too thin, so that the abrasion resistance was not sufficient.
- the surface resistance value of the outer surface of the water-repellent and oil-repellent layer could be set to 1.0 ⁇ 10 11 ⁇ / ⁇ or less.
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Abstract
Description
なお、本発明に関連する従来技術として、上述した文献と共に下記文献が挙げられる。
〔1〕
基材の少なくとも片方の表面上に、第1層として機能膜層を有し、該機能膜層の外表面上に第2層としてのプライマー層を有し、さらに該プライマー層の外表面上に第3層としての撥水撥油層を有してなる撥水撥油部材であって、該プライマー層が分子中にシラノール基を複数個有する有機ケイ素化合物を主成分とする膜厚10~500nmの層からなり、かつ該撥水撥油層が加水分解性含フッ素化合物の硬化物を主成分とする膜厚0.5~50nmの層からなる撥水撥油部材。
〔2〕
機能膜層が、全体が二酸化ケイ素を主成分とするものであるか又は少なくとも最表層が二酸化ケイ素のものである〔1〕に記載の撥水撥油部材。
〔3〕
分子中にシラノール基を複数個有する有機ケイ素化合物が、テトラアルコキシシランの加水分解・部分縮合物である〔1〕又は〔2〕に記載の撥水撥油部材。
〔4〕
加水分解性含フッ素化合物が、少なくとも1個の分子鎖末端に加水分解性シリル基を少なくとも1個有し、該加水分解性シリル基が、炭素数1~12のアルコキシ基、炭素数2~12のアルコキシアルコキシ基、炭素数1~10のアシロキシ基、炭素数2~10のアルケニルオキシ基、ハロゲン基もしくはアミノ基を有するシリル基、又はシラザン基である〔1〕~〔3〕のいずれかに記載の撥水撥油部材。
〔5〕
加水分解性含フッ素化合物が、分子中に-(CF2)d-O-(CF2O)p(CF2CF2O)q(CF2CF2CF2O)r(CF2CF2CF2CF2O)s(CF(CF3)CF2O)t-(CF2)d-(式中、p、q、r、s、tはそれぞれ独立に0~200の整数であり、かつ、p+q+r+s+t=3~500であり、括弧内に示される各繰り返し単位はランダムに結合されていてよく、dは独立に0~8の整数であり、該単位は直鎖状であっても分岐状であってもよい。)で示される2価の直鎖状パーフルオロオキシアルキレンポリマー残基を有し、かつ、少なくとも1個の分子鎖末端に加水分解性シリル基を少なくとも1個有するフルオロオキシアルキレン基含有有機ケイ素化合物である〔1〕~〔4〕のいずれかに記載の撥水撥油部材。
〔6〕
加水分解性含フッ素化合物が、下記一般式(1)~(5)で表されるフッ素含有加水分解性有機ケイ素化合物から選ばれる少なくとも1種である〔1〕~〔5〕のいずれかに記載の撥水撥油部材。
(A-Rf)α-ZWβ (1)
Rf-(ZWβ)2 (2)
Z’-(Rf-ZWβ)γ (3)
〔式中、Rfは-(CF2)d-O-(CF2O)p(CF2CF2O)q(CF2CF2CF2O)r(CF2CF2CF2CF2O)s(CF(CF3)CF2O)t-(CF2)d-で示される2価の直鎖状パーフルオロオキシアルキレンポリマー残基であり、p、q、r、s、tはそれぞれ独立に0~200の整数であり、かつ、p+q+r+s+t=3~500であり、括弧内に示される各繰り返し単位はランダムに結合されていてよく、dは独立に0~8の整数であり、該単位は直鎖状であっても分岐状であってもよい。Aはフッ素原子、水素原子、又は末端が-CF3基、-CF2H基もしくは-CH2F基である1価のフッ素含有基であり、Z、Z’は独立に単結合、又は窒素原子、酸素原子、ケイ素原子、リン原子もしくは硫黄原子を含んでいてもよく、フッ素置換されていてもよい2~8価の有機基であり、Wは末端に加水分解性基を有する1価の有機基である。α、βはそれぞれ独立に1~7の整数であり、かつ、α+β=2~8の整数である。γは2~8の整数である。〕
A-Rf-Q-(Y)δ-B (4)
Rf-(Q-(Y)δ-B)2 (5)
(式中、Rf、Aは前記と同じであり、Qは単結合又は2価の有機基であり、δはそれぞれ独立に1~10の整数であり、Yは加水分解性基を有する2価の有機基であり、Bは水素原子、炭素数1~4のアルキル基、又はハロゲン原子である。)
〔7〕
フッ素含有加水分解性有機ケイ素化合物が、下記に示すものから選ばれる〔6〕に記載の撥水撥油部材。
〔8〕
基材が、樹脂、セラミック、金属、石英、ガラス、サファイヤ又はダイヤモンドである〔1〕~〔7〕のいずれかに記載の撥水撥油部材。
〔9〕
基材の少なくとも片方の表面上に、二酸化ケイ素を主成分とする機能膜層又は少なくとも最表層が二酸化ケイ素である機能膜層を形成する工程と、該機能膜層の外表面上に、分子中にシラノール基を複数個有する有機ケイ素化合物と溶剤を含む溶液を湿式塗布する工程と、該溶剤を蒸発させて前記基材の少なくとも片方の表面上にプライマー層を形成・積層する工程と、該プライマー層の外表面上に、加水分解性含フッ素化合物と溶剤を含む溶液を湿式塗布した後に該溶剤を蒸発させるか、又は、該溶液から溶剤を蒸発させた加水分解性含フッ素化合物を乾式塗布する工程と、該加水分解性含フッ素化合物を硬化させてプライマー層の外表面上に撥水撥油層を形成・積層する工程とを含む〔1〕~〔8〕のいずれかに記載の撥水撥油部材の製造方法。
本発明の撥水撥油部材は、基材の少なくとも片方の表面上に、第1層として機能膜層を有し、該機能膜層の外表面上に第2層としてのプライマー層を有し、さらに該プライマー層の外表面上に第3層としての撥水撥油層を有してなる撥水撥油部材であって、該プライマー層が分子中にシラノール基を複数個有する有機ケイ素化合物を主成分とする膜厚10~500nmの層からなり、かつ該撥水撥油層が加水分解性含フッ素化合物の硬化物を主成分とする膜厚0.5~50nmの層からなる。
該撥水撥油層は、例えば、形成したプライマー層表面(第2層)の外表面上に、加水分解性含フッ素化合物と溶剤を含む溶液(撥水撥油剤)を塗布して硬化させることにより形成・積層することができる。
-CF2O-
-CF2CF2O-
-CF2CF2CF2O-
-CF(CF3)CF2O-
-CF2CF2CF2CF2O-
-CF2CF2CF2CF2CF2O-
-C(CF3)2O-
(A-Rf)α-ZWβ (1)
Rf-(ZWβ)2 (2)
Z’-(Rf-ZWβ)γ (3)
A-Rf-Q-(Y)δ-B (4)
Rf-(Q-(Y)δ-B)2 (5)
また、Qは単結合又は2価の有機基であり、δはそれぞれ独立に1~10の整数であり、Yは加水分解性基を有する2価の有機基であり、Bは水素原子、炭素数1~4のアルキル基、又はハロゲン原子である。
また、Rは、炭素数1~4のメチル基、エチル基等のアルキル基、又はフェニル基であり、中でもメチル基が好適である。
aは2又は3であり、反応性、プライマー層(第2層)に対する密着性の観点から、3が好ましい。mは0~10の整数であり、好ましくは2~8の整数であり、より好ましくは2又は3である。
また、Bは互いに独立に、水素原子、炭素数1~4のメチル基、エチル基、プロピル基及びブチル基等のアルキル基、又はフッ素原子、塩素原子、臭素原子及びヨウ素原子等のハロゲン原子である。
上記溶剤は1種を単独で使用しても2種以上を混合して使用してもよい。
溶剤は撥水撥油剤(加水分解性含フッ素化合物と溶剤を含む溶液)中における加水分解性含フッ素化合物が0.01~50質量%、好ましくは0.03~10質量%、さらに好ましくは0.05~1質量%になるように含有することが望ましい。
加水分解性含フッ素化合物は、室温(25℃)で1~24時間にて硬化させることができるが、さらに短時間で硬化させるために30~200℃で1分~1時間加熱してもよい。硬化は加湿下(50~90%RH)で行うことが加水分解を促進する上で好ましい。
下記に示すように、基材、機能膜層、プライマー層及び撥水撥油層を有する撥水撥油部材の試験体を作製した。
クリアハードコート処理済みPETフイルム(東山フイルム株式会社製ハードコートフイルムFHC-53EEM2、厚さ188μm、幅50mm、長さ100mmの試験片基板、鉛筆硬度:H(JIS K5400 500g))
下記に示す方法で機能膜層を上記基材にそれぞれ形成した。
二酸化ケイ素をスパッタ法で上記基材の外表面上に厚さ100nmの機能膜層1を形成した。
ペルヒドロポリシラザンをジブチルエーテルで固形分2.0質量%に希釈した処理液にて、上記基材をディッピング塗工した後、80℃/80%RHで24時間硬化させて、上記基材の外表面上に厚さ96nmの機能膜層2を形成した。ディッピング塗工は、基材を処理液に30秒浸漬後、150mm/minで引き上げた。なお、機能膜層2の原料であるペルヒドロポリシラザンは、硬化に伴って雰囲気中の湿気(水分)と反応し、アンモニアを発生して脱水素することでSiO2(二酸化ケイ素)層を形成しているものである。
二酸化ケイ素をスパッタ法で上記基材の外表面上に厚さ10nmの機能膜層3を形成した。
上記基材の表面上に形成した反射防止層の最表層として、二酸化ケイ素をスパッタ法により積層して機能膜層4を形成した。なお、該反射防止層は、基板側から、Nb2O5(12nm)、SiO2(34nm)、Nb2O5(116nm)、SiO2(76nm)の積層構造である。
下記に示す方法でプライマー層を上記基材又は機能膜層上にそれぞれ形成した。
テトラエトキシシランの加水分解・部分縮合物(重量平均分子量:25,000、シラノール基量:0.015mol/g)をブタノールで固形分0.2質量%に希釈した処理液にて、上記基材をバーコーター(第一理化株式会社製バーコーターNo.2)で塗工した後、80℃で1分間乾燥し、ブタノールを蒸発させて、上記基材の外表面上にプライマー層1を10nm形成した。
テトラエトキシシランの加水分解・部分縮合物(重量平均分子量:25,000、シラノール基量:0.015mol/g)をブタノールで固形分0.78質量%に希釈した処理液にて、上記基材をディッピング塗工(基材を処理液に60秒浸漬後、150mm/minで引き上げ)した後、室温(25℃)で60分間乾燥し、ブタノールを蒸発させて、上記基材の外表面上にプライマー層2を30nm形成した。
テトラエトキシシランの加水分解・部分縮合物(重量平均分子量:25,000、シラノール基量:0.015mol/g)をブタノールで固形分2.0質量%に希釈した処理液にて、上記基材をディッピング塗工(基材を処理液に60秒浸漬後、150mm/minで引き上げ)した後、室温(25℃)で60分間乾燥し、ブタノールを蒸発させて、上記基材の外表面上にプライマー層3を91nm形成した。
テトラエトキシシランの加水分解・部分縮合物(重量平均分子量:25,000、シラノール基量:0.015mol/g)をブタノールで固形分4.0質量%に希釈した処理液にて、上記基材をディッピング塗工(基材を処理液に60秒浸漬後、150mm/minで引き上げ)した後、室温(25℃)で60分間乾燥し、ブタノールを蒸発させて、上記基材の外表面上にプライマー層4を210nm形成した。
テトラエトキシシランの加水分解・部分縮合物(重量平均分子量:25,000、シラノール基量:0.015mol/g)をブタノールで固形分0.1質量%に希釈した処理液にて、上記基材をバーコーター(第一理化株式会社製バーコーターNo.2)で塗工した後、80℃で1分間乾燥し、ブタノールを蒸発させて、上記基材の外表面上にプライマー層5を5nm形成した。
さらに、下記の方法に基づき上記基材、表1に示す上記機能膜層1~4、あるいは表1に示す上記プライマー層1~5を形成した基材のプライマー層の外表面上に撥水撥油層を形成・積層した。
下記に示す化合物1を固形分で0.1質量%になるようにフッ素変性エーテル系溶剤(Novec7200(3M株式会社製、エチルパーフルオロブチルエーテル))で希釈した処理液を調製した後、スプレー塗工装置(株式会社ティーアンドケー製NST-51)で上記基材のプライマー層上に該処理液をスプレー塗工した。その後、80℃で30分間加熱してフッ素変性エーテル系溶剤を蒸発させると同時に該処理液中の固形分を硬化させて硬化被膜(撥水撥油層)を形成し、試験体を作製した。蛍光X線装置(株式会社リガク製ZSXmini2)によるF検出量から算出した撥水撥油層1の平均の膜厚は約10nmであった。
[化合物1]
下記に示す化合物2を固形分で20質量%になるようにフッ素変性エーテル系溶剤(Novec7200(3M株式会社製))で希釈した処理液を調製した後、真空蒸着装置(アルバック機構株式会社製VTR-250)で上記基材のプライマー層上に該処理液を真空蒸着塗工した。その後、25℃で60分間静置して真空蒸着塗工した固形分を硬化させて硬化被膜(撥水撥油層)を形成し、試験体を作製した。蛍光X線装置(株式会社リガク製ZSXmini2)によるF検出量から算出した撥水撥油層2の平均の膜厚は約11nmであった。
[化合物2]
下記に示す化合物3を固形分で0.2質量%になるようにフッ素変性エーテル系溶剤(Novec7200(3M株式会社製))で希釈した処理液を調製した後、バーコーター(第一理化株式会社製バーコーターNo.2)にて上記基材のプライマー層上に該処理液を塗工した後、25℃で60分間静置して、フッ素変性エーテル系溶剤を蒸発させると同時に該処理液中の固形分を硬化させて硬化被膜(撥水撥油層)を形成し、試験体を作製した。蛍光X線装置(株式会社リガク製ZSXmini2)によるF検出量から算出した撥水撥油層3の平均の膜厚は約15nmであった。
[化合物3]
下記に示す化合物4を固形分で0.1質量%になるようにフッ素変性エーテル系溶剤(Novec7200(3M株式会社製))で希釈した処理液を調製した後、スプレー塗工装置(株式会社ティーアンドケー製NST-51)で上記基材のプライマー層上に該処理液をスプレー塗工した。その後、80℃で30分間加熱してフッ素変性エーテル系溶剤を蒸発させると同時に該処理液中の固形分を硬化させて硬化被膜(撥水撥油層)を形成し、試験体を作製した。蛍光X線装置(株式会社リガク製ZSXmini2)によるF検出量から算出した撥水撥油層4の平均の膜厚は約13nmであった。
[化合物4]
下記に示す化合物5を固形分で0.1質量%になるようにフッ素変性エーテル系溶剤(Novec7200(3M株式会社製))で希釈した処理液を調製した後、スプレー塗工装置(株式会社ティーアンドケー製NST-51)で上記基材のプライマー層上に該処理液をスプレー塗工した。その後、80℃で30分間加熱してフッ素変性エーテル系溶剤を蒸発させると同時に該処理液中の固形分を硬化させて硬化被膜(撥水撥油層)を形成し、試験体を作製した。蛍光X線装置(株式会社リガク製ZSXmini2)によるF検出量から算出した撥水撥油層5の平均の膜厚は約13nmであった。
[化合物5]
下記に示す化合物6を固形分で0.1質量%になるようにフッ素変性エーテル系溶剤(Novec7200(3M株式会社製))で希釈した処理液を調製した後、スプレー塗工装置(株式会社ティーアンドケー製NST-51)で上記基材のプライマー層上に該処理液をスプレー塗工した。その後、80℃で30分間加熱してフッ素変性エーテル系溶剤を蒸発させると同時に該処理液中の固形分を硬化させて硬化被膜(撥水撥油層)を形成し、試験体を作製した。蛍光X線装置(株式会社リガク製ZSXmini2)によるF検出量から算出した撥水撥油層6の平均の膜厚は約12nmであった。
[化合物6]
帯電防止性の評価として、表面抵抗値を、三菱ケミカルアナリテック株式会社製の抵抗率計(ハイレスターUX MCP-HT800)を用いて、下記条件で測定した。
印加電圧:1,000V
接触角計(DropMaster、協和界面科学株式会社製)を用いて、試験体の硬化被膜(撥水撥油層)の水に対する接触角及びオレイン酸に対する接触角を測定した。
上記にて作製した試験体の硬化被膜(撥水撥油層)について、ラビングテスター(新東科学株式会社製)を用いて、下記条件で100往復回摩耗後の水に対する接触角(撥水性)を上記と同様にして測定し、水接触角が100度を保つ摩耗回数を消しゴム摩耗耐久回数とした。試験環境条件は25℃、湿度50%である。
消しゴム:Minoan株式会社製
接触面積:6mmφ
移動距離(片道):30mm
移動速度:3,600mm/分
荷重:500g/6mmφ
また、実施例1~13は、プライマー層を10nm以上にしたため、撥水撥油層の外表面の表面抵抗値を1.0×1011Ω/□以下にすることができた。
Claims (9)
- 基材の少なくとも片方の表面上に、第1層として機能膜層を有し、該機能膜層の外表面上に第2層としてのプライマー層を有し、さらに該プライマー層の外表面上に第3層としての撥水撥油層を有してなる撥水撥油部材であって、該プライマー層が分子中にシラノール基を複数個有する有機ケイ素化合物を主成分とする膜厚10~500nmの層からなり、かつ該撥水撥油層が加水分解性含フッ素化合物の硬化物を主成分とする膜厚0.5~50nmの層からなる撥水撥油部材。
- 機能膜層が、全体が二酸化ケイ素を主成分とするものであるか又は少なくとも最表層が二酸化ケイ素のものである請求項1に記載の撥水撥油部材。
- 分子中にシラノール基を複数個有する有機ケイ素化合物が、テトラアルコキシシランの加水分解・部分縮合物である請求項1又は2に記載の撥水撥油部材。
- 加水分解性含フッ素化合物が、少なくとも1個の分子鎖末端に加水分解性シリル基を少なくとも1個有し、該加水分解性シリル基が、炭素数1~12のアルコキシ基、炭素数2~12のアルコキシアルコキシ基、炭素数1~10のアシロキシ基、炭素数2~10のアルケニルオキシ基、ハロゲン基もしくはアミノ基を有するシリル基、又はシラザン基である請求項1~3のいずれか1項に記載の撥水撥油部材。
- 加水分解性含フッ素化合物が、分子中に-(CF2)d-O-(CF2O)p(CF2CF2O)q(CF2CF2CF2O)r(CF2CF2CF2CF2O)s(CF(CF3)CF2O)t-(CF2)d-(式中、p、q、r、s、tはそれぞれ独立に0~200の整数であり、かつ、p+q+r+s+t=3~500であり、括弧内に示される各繰り返し単位はランダムに結合されていてよく、dは独立に0~8の整数であり、該単位は直鎖状であっても分岐状であってもよい。)で示される2価の直鎖状パーフルオロオキシアルキレンポリマー残基を有し、かつ、少なくとも1個の分子鎖末端に加水分解性シリル基を少なくとも1個有するフルオロオキシアルキレン基含有有機ケイ素化合物である請求項1~4のいずれか1項に記載の撥水撥油部材。
- 加水分解性含フッ素化合物が、下記一般式(1)~(5)で表されるフッ素含有加水分解性有機ケイ素化合物から選ばれる少なくとも1種である請求項1~5のいずれか1項に記載の撥水撥油部材。
(A-Rf)α-ZWβ (1)
Rf-(ZWβ)2 (2)
Z’-(Rf-ZWβ)γ (3)
〔式中、Rfは-(CF2)d-O-(CF2O)p(CF2CF2O)q(CF2CF2CF2O)r(CF2CF2CF2CF2O)s(CF(CF3)CF2O)t-(CF2)d-で示される2価の直鎖状パーフルオロオキシアルキレンポリマー残基であり、p、q、r、s、tはそれぞれ独立に0~200の整数であり、かつ、p+q+r+s+t=3~500であり、括弧内に示される各繰り返し単位はランダムに結合されていてよく、dは独立に0~8の整数であり、該単位は直鎖状であっても分岐状であってもよい。Aはフッ素原子、水素原子、又は末端が-CF3基、-CF2H基もしくは-CH2F基である1価のフッ素含有基であり、Z、Z’は独立に単結合、又は窒素原子、酸素原子、ケイ素原子、リン原子もしくは硫黄原子を含んでいてもよく、フッ素置換されていてもよい2~8価の有機基であり、Wは末端に加水分解性基を有する1価の有機基である。α、βはそれぞれ独立に1~7の整数であり、かつ、α+β=2~8の整数である。γは2~8の整数である。〕
A-Rf-Q-(Y)δ-B (4)
Rf-(Q-(Y)δ-B)2 (5)
(式中、Rf、Aは前記と同じであり、Qは単結合又は2価の有機基であり、δはそれぞれ独立に1~10の整数であり、Yは加水分解性基を有する2価の有機基であり、Bは水素原子、炭素数1~4のアルキル基、又はハロゲン原子である。) - 基材が、樹脂、セラミック、金属、石英、ガラス、サファイヤ又はダイヤモンドである請求項1~7のいずれか1項に記載の撥水撥油部材。
- 基材の少なくとも片方の表面上に、二酸化ケイ素を主成分とする機能膜層又は少なくとも最表層が二酸化ケイ素である機能膜層を形成する工程と、該機能膜層の外表面上に、分子中にシラノール基を複数個有する有機ケイ素化合物と溶剤を含む溶液を湿式塗布する工程と、該溶剤を蒸発させて前記基材の少なくとも片方の表面上にプライマー層を形成・積層する工程と、該プライマー層の外表面上に、加水分解性含フッ素化合物と溶剤を含む溶液を湿式塗布した後に該溶剤を蒸発させるか、又は、該溶液から溶剤を蒸発させた加水分解性含フッ素化合物を乾式塗布する工程と、該加水分解性含フッ素化合物を硬化させてプライマー層の外表面上に撥水撥油層を形成・積層する工程とを含む請求項1~8のいずれか1項に記載の撥水撥油部材の製造方法。
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