WO2019077947A1 - 含フッ素コーティング剤組成物、表面処理剤及び物品 - Google Patents
含フッ素コーティング剤組成物、表面処理剤及び物品 Download PDFInfo
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- WO2019077947A1 WO2019077947A1 PCT/JP2018/035582 JP2018035582W WO2019077947A1 WO 2019077947 A1 WO2019077947 A1 WO 2019077947A1 JP 2018035582 W JP2018035582 W JP 2018035582W WO 2019077947 A1 WO2019077947 A1 WO 2019077947A1
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- fluorine
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- 0 CC(C)(C(C)(C)OC)N* Chemical compound CC(C)(C(C)(C)OC)N* 0.000 description 3
- KYJBFMJHEMUTNG-UHFFFAOYSA-N CC(C)(C(C)(C)OC)N Chemical compound CC(C)(C(C)(C)OC)N KYJBFMJHEMUTNG-UHFFFAOYSA-N 0.000 description 1
- JQQVXEFVLJBYMB-UHFFFAOYSA-N CC(C)(NN)OC Chemical compound CC(C)(NN)OC JQQVXEFVLJBYMB-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
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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
- B05D7/24—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 for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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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
-
- 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
- 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
- C09D183/10—Block or graft copolymers containing polysiloxane sequences
- C09D183/12—Block or graft copolymers containing polysiloxane sequences containing polyether sequences
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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
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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
Definitions
- the present invention relates to a coating agent containing a hydrolyzable alkoxy group or aryloxy group-containing silane modified with a fluoropolyether group-containing polymer and / or a partial hydrolytic condensate thereof, particularly in vacuum deposition coating, Fluorine-containing coating composition capable of improving the curing rate afterward and capable of forming a stable film in a short time, a surface treatment agent containing the coating agent composition, and treatment with the surface treatment agent To provide the
- the fluoropolyether group-containing compound has water and oil repellency, chemical resistance, lubricity, releasability, antifouling property and the like because its surface free energy is very small.
- industrially it is widely used in industrial applications such as water- and oil-repellent soiling agents such as paper and fibers, lubricants for magnetic recording media, oil-proofing agents for precision equipment, mold release agents, cosmetics, and protective films.
- its properties mean that it is at the same time non-adhesive and non-adhesive to other substrates, and although it can be applied to the substrate surface, it is difficult to adhere the film to the substrate Met.
- silane coupling agents are well known as those for bonding a substrate surface such as glass or cloth to an organic compound, and are widely used as coating agents for various substrate surfaces.
- the silane coupling agent has an organic functional group and a reactive silyl group (generally, a hydrolyzable silyl group such as an alkoxysilyl group) in one molecule.
- the hydrolyzable silyl group causes a self condensation reaction due to moisture and the like in the air to form a film.
- the coating forms a durable and durable coating by chemically and physically bonding the hydrolyzable silyl group to the surface of glass, metal or the like.
- Patent Documents 1 to 8 Japanese Patent Laid-Open Nos. 2003-238577, 2860979, 4672095, and 2008-534696. Gazette, JP-A-2008-537557, JP-A-2012-072272, JP-A-2012-157856, JP-A-2013-136833).
- compositions are generally used diluted with a solvent capable of dissolving the fluoropolyether group-containing silane compound.
- the dilution concentration varies depending on the application method, but is often used in the range of 10 to 50% by mass in the case of vapor deposition coating, and 0.03 to 5% by mass in the case of spray coating, dipping coating, etc. Often used in range.
- the fluoropolyether group-containing polymer used in these compositions compounds containing an alkoxysilyl group such as a methoxy group or an ethoxy group as a hydrolyzable silyl group are mainly used.
- deposition coating takes the step of heating and evaporating the polymer component in vacuum to adhere to the substrate, but when the additive is easily volatilized, it evaporates before the polymer and is drawn to the vacuum line side There is a problem that it is easy to be fixed, and it is difficult to fix on the substrate, and a sufficient effect can not be obtained.
- the present invention has been made in view of the above circumstances, and particularly in vacuum deposition coating, by improving the curing speed after coating, performance expression such as wear durability is accelerated, and a stable film is formed in a short time. It is an object of the present invention to provide a fluorine-containing coating composition that can be used, a surface treatment agent containing the coating agent composition, and an article treated with the surface treatment agent.
- the present invention provides the following fluorine-containing coating composition, a surface treatment agent containing the coating agent composition, and an article treated with the surface treatment agent.
- B A silane having a hydrolyzable silyl group modified with a fluoropolyether group-containing polymer and / or a partial hydrolytic condensate thereof, wherein the hydrolyzable silyl group is an acyloxysilyl group and / or aroyl A compound which is an oxysilyl group.
- the silane having a hydrolyzable silyl group modified with the fluoropolyether group-containing polymer of the component (A) has the following general formula (1): -C g F 2g O- (1) (Wherein, g is independently an integer of 1 to 6 per unit) Embedded image containing 10 to 200 of the repeating units represented by the following general formula (2a) at the end of the fluoropolyether group-containing polymer: (Wherein, R 1 is an alkyl group having 1 to 4 carbon atoms, an alkoxy substituted alkyl group having 2 to 4 carbon atoms, or a phenyl group, and R may be a hydrogen atom partially substituted with a halogen atom) It is a monovalent hydrocarbon group having 1 to 6 carbon atoms, and a is 2 or 3.)
- the fluorine-containing coating agent composition according to [1] which has at least one hydrolyzable alkoxysilyl group and / or aryloxysilyl group shown by the above
- the silane having a hydrolyzable silyl group modified with the fluoropolyether group-containing polymer of component (B) is represented by the following general formula (1) -C g F 2g O- (1) (Wherein, g is independently an integer of 1 to 6 per unit) Embedded image containing 10 to 200 of the repeating units represented by and at least one end of the fluoropolyether group-containing polymer represented by the following general formula (2b) (Wherein R 2 is an alkyl group having 1 to 4 carbon atoms, an alkoxy substituted alkyl group having 2 to 4 carbon atoms, or a phenyl group, and R may be a hydrogen atom partially substituted with a halogen atom) It is a monovalent hydrocarbon group having 1 to 6 carbon atoms, and a ′ is 1, 2 or 3.
- 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)
- A is a fluorine atom, a hydrogen atom, or a monovalent fluorine-containing group in which the end is —CF 3 group, —CF 2 H group or —CFH 2 group, and Q may be a single bond or fluorine substitution
- a divalent organic group, Z is a single bond, a diorganosilylene group
- a is an integer of 1 to 7 and is a group selected from the group having a hydrolyzable silyl group represented by Y is a divalent group having an alkoxysilyl group, aryloxysilyl group, acyloxysilyl group or aroyloxysilyl group, ⁇ is an integer of 1 to 10, and B is a hydrogen atom having 1 to 4 carbon atoms Or a halogen atom.
- Y is at least one selected from the groups represented by the following general formulas (8) to (10).
- X is a group represented by the above general formula (2a) or (2b), and D is a single bond or a divalent organic group having 1 to 20 carbon atoms which may be substituted by fluorine.
- D ′ is a C 1 to C 10 optionally substituted divalent organic group, R 3 is a C 1 to C 20 monovalent hydrocarbon group, and e is 1 or 2.
- Q is selected from a single bond or a divalent group represented by the following formula.
- A is a fluorine atom, a hydrogen atom, or a terminal having a —CF 3 group, a —CF 2 H group or a —CFH 2 group.
- Valent fluorine-containing group [11] A surface treatment agent comprising the fluorine-containing coating composition according to any one of [1] to [10]. [12] The surface treatment agent according to [11], which is further diluted with a solvent containing a fluorine atom. [13] An article treated with the surface treatment agent according to [11] or [12]. [14] The touch panel processed by the surface treating agent as described in [11] or [12]. [15] An antireflective treated article treated with the surface treatment agent according to [11] or [12]. [16] Glass treated with the surface treatment agent according to [11] or [12], tempered glass, sapphire glass, quartz glass or a SiO 2 treated substrate.
- the fluorine-containing coating agent composition of the present invention comprises a silane containing a hydrolyzable alkoxysilyl group and / or an aryloxysilyl group modified with a fluoropolyether group-containing polymer and / or a partial hydrolysis condensate thereof.
- the coating composition comprises a hydrolyzable acyloxysilyl group and / or an alayyloxysilyl group having a molecular weight distribution basically equal to that of the above-mentioned polymer and from which an acetic acid compound having catalytic activity is released by hydrolysis.
- the two types of polymer are simultaneously evaporated, uniformly dispersed and coated on the substrate, and then the catalyst compound is uniformly generated by hydrolysis.
- the curing speed after coating is improved to form a stable uniform film in a short time.
- wet curing spray coating and dipping
- curing is also effective in promoting curing.
- the fluorine-containing coating agent composition of the present invention is (A) a silane having a hydrolyzable silyl group modified with a polymer containing a fluoropolyether group and / or a partial hydrolytic condensate thereof, which comprises the hydrolyzable silyl.
- the components (A) and (B) are different from each other in the hydrolyzable silyl group bonded to the silicon atom ((A) component is an alkoxysilyl group and / or an aryloxysilyl group, the component (B) is Is an acyloxysilyl group and / or an aroyloxysilyl group)), and the structure of the other silane modified with the fluoropolyether group-containing polymer has a similar molecular weight distribution The same structure may be used, or different structures may be used.
- the fluoropolyether group of the component (A) is represented by the following general formula (1) -C g F 2g O- (1) (Wherein, g is independently an integer of 1 to 6 per unit) And 10 to 200, preferably 20 to 100, of the repeating units represented by and at least one end, preferably one or two ends, more preferably one of the fluoropolyether group-containing polymer
- the following general formula (2a) at the end (Wherein, R 1 is an alkyl group having 1 to 4 carbon atoms, an alkoxy substituted alkyl group having 2 to 4 carbon atoms, or a phenyl group, and R may be a hydrogen atom partially substituted with a halogen atom) It is a monovalent hydrocarbon group having 1 to 6 carbon atoms, and a is 2 or 3.) Those having at least one hydrolyzable alkoxysilyl
- the component (A) has at least one, preferably 1 to 12, hydrolyzable alkoxysilyl group and / or aryloxysilyl group represented by the above formula (2a) in the molecule, and is more preferable. It is desirable that 1 to 6 be included.
- the fluoropolyether group of the (B) component is represented by the following general formula (1) -C g F 2g O- (1) (Wherein, g is independently an integer of 1 to 6 per unit) And 10 to 200, preferably 20 to 100, of the repeating units represented by and at least one end, preferably one or two ends, more preferably one of the fluoropolyether group-containing polymer
- the following general formula (2b) at the end (Wherein R 2 is an alkyl group having 1 to 4 carbon atoms, an alkoxy substituted alkyl group having 2 to 4 carbon atoms, or a phenyl group, and R may be a hydrogen atom partially substituted with a halogen atom) It is a monovalent hydrocarbon group having 1 to 6 carbon atoms, and a ′ is 1, 2 or 3.)
- the component (B) has at least one, preferably 1 to 12, hydrolyzable acyloxysilyl group and / or aroyloxysilyl group represented by the above formula (2b), and more preferably It is desirable to have 1 to 6 pieces.
- the fluoropolyether group may be composed of one kind of these repeating units alone or may be a combination of two or more kinds, and each repeating unit may be randomly bonded.
- R 1 represents an alkyl group such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl or tert-butyl, having 1 to 4 carbon atoms, and having carbon atoms
- alkoxy substituted alkyl groups such as methoxymethyl group, methoxyethyl group, ethoxymethyl group, ethoxyethyl group and the like, or phenyl groups, and among them, methyl group and ethyl group are preferable.
- R is a monovalent hydrocarbon group having 1 to 6 carbon atoms in which a part of hydrogen atoms may be substituted with a halogen atom, and methyl, ethyl, propyl, isopropyl, butyl, butyl, isobutyl, sec And unsubstituted or halogen-substituted alkyl groups such as -butyl, tert-butyl, trifluoroethyl and trichloroethyl, unsubstituted and halogen-substituted aryl groups such as phenyl and the like. Among them, methyl and ethyl are preferable.
- R 2 represents an alkyl group such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl or tert-butyl, having 1 to 4 carbon atoms, and having carbon atoms
- alkoxy substituted alkyl groups such as methoxymethyl group, methoxyethyl group, ethoxymethyl group, ethoxyethyl group and the like, or phenyl groups, and among them, methyl group and ethyl group are preferable.
- R is a monovalent hydrocarbon group having 1 to 6 carbon atoms in which a part of hydrogen atoms may be substituted with a halogen atom, and methyl, ethyl, propyl, isopropyl, butyl, butyl, isobutyl, sec And unsubstituted or halogen-substituted alkyl groups such as -butyl, tert-butyl, trifluoroethyl and trichloroethyl, unsubstituted and halogen-substituted aryl groups such as phenyl and the like. Among them, methyl and ethyl are preferable.
- siloxysilyl group and / or aroyloxysilyl group-containing silane fluoropolyether group-containing polymer-modified hydrolyzable silanes represented by the following general formulas (3), (4), (5) and (6) At least one selected is more preferable.
- 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)
- A is a fluorine atom, a hydrogen atom, or a monovalent fluorine-containing group in which the end is —CF 3 group, —CF 2 H group or —CFH 2 group, and Q may be a single bond or fluorine substitution
- a divalent organic group, Z is a single bond, a diorganosilylene group
- R f 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) t- (CF 2 ) d- .
- p, q, r, s and t are each independently an integer of 0 to 200, preferably p is an integer of 5 to 100, q is an integer of 5 to 100, r is an integer of 0 to 100, s is An integer of 0 to 50, t is an integer of 0 to 100, and p + q + r + s + t is an integer of 10 to 200, preferably an integer of 20 to 100.
- the units shown in these parentheses are randomly combined You may d is independently an integer of 0 to 5, preferably an integer of 0 to 2, more preferably 1 or 2.
- Rf Specifically as Rf, the following can be illustrated.
- d ' is the same as d above, and p', q ', r', s 'and t' are each an integer of 1 or more, and the upper limit thereof is the above p, q, r, s, t And the sum of p ', q', r ', s' and t' is 1 to 200.
- u is an integer of 1 or more
- v is an integer of 1 or more
- u + v 2 It is an integer of-100.
- Each repeating unit may be randomly combined.
- A is a fluorine atom, a hydrogen atom or a monovalent fluorine-containing group whose end is a —CF 3 group, a —CF 2 H group or a —CFH 2 group, and is monovalent Specifically, the following can be illustrated as a fluorine-containing group of these. -CF 3 -CF 2 CF 3 -CF 2 CF 2 CF 3 -CF 2 H -CFH 2
- Q is a single bond or a divalent organic group which may be substituted with fluorine, and is a linking group between the Rf group and the terminal group.
- a diorganosilylene group such as an amide bond, an ether bond, an ester bond or a dimethylsilylene group, -Si [OH] [(CH 2 ) b Si (CH 3 ) 3 ]-(b is 2 to 4
- An unsubstituted or substituted divalent organic group having 2 to 12 carbon atoms which may contain one or more types of structures selected from the group consisting of a group represented by It is an unsubstituted or substituted divalent hydrocarbon group having 2 to 12 carbon atoms which may be contained.
- examples of the unsubstituted or substituted divalent hydrocarbon group having 2 to 12 carbon atoms include ethylene group, propylene group (trimethylene group, methylethylene group), butylene group (tetramethylene group, methylpropylene group), and hexa It may be an alkylene group such as a methylene group or an octamethylene group, an arylene group such as a phenylene group, or a combination of two or more of these groups (such as an alkylene arylene group); A part or all of which is substituted with a halogen atom such as fluorine or iodine, and the like are mentioned, and among them, an unsubstituted or substituted alkyl group having 2 to 4 carbon atoms and a phenyl group are preferable.
- Examples of such Q include the following groups.
- Z is a single bond, preferably a diorganosilylene group such as a dialkylsilylene group having 1 to 3 carbon atoms
- -JC [J is preferably an alkyl having 1 to 3 carbon atoms
- trivalent group represented by -LSi (wherein L is preferably an alkyl group having 1 to 3 carbon atoms), tetravalent group represented by -C-, -Si ⁇ And a group selected from a divalent to octavalent, preferably a divalent to tetravalent siloxane residue, and containing a siloxane bond, the number of silicon atom
- n is an integer of 2 to 6
- the organopolysiloxane residue preferably has an alkyl group having 1 to 8 carbon atoms, more preferably 1 to 4 carbon atoms, such as methyl, ethyl, propyl and butyl, or a phenyl group.
- the alkylene group in the silalkylene bond preferably has 2 to 6 carbon atoms, and more preferably 2 to 4 carbon atoms.
- W is a group selected from groups having a hydrolyzable silyl group represented by the following general formulas (7a) to (7d).
- X is the same as above, f is an integer of 1 to 10, preferably 2 to 8, and D is a single bond or a C 1 to C 20 optionally substituted divalent organic group
- m is an integer of 2 to 6, preferably 2 to 4, and Me is a methyl group.
- D is a single bond, or a divalent organic group having 1 to 20 carbon atoms, preferably 2 to 8 carbon atoms, which may be substituted with fluorine, preferably a divalent hydrocarbon group, and as the divalent hydrocarbon group,
- Arylene group such as methylene group, ethylene group, propylene group (trimethylene group, methyl ethylene group), butylene group (tetramethylene group, methyl propylene group), hexamethylene group, alkylene group such as octamethylene group, phenylene group, or Examples thereof include combinations of two or more of these groups (such as alkylene and arylene groups) and those in which part or all of the hydrogen atoms of these groups are substituted with fluorine atoms.
- an ethylene group, a propylene group and a phenylene group are preferable.
- ⁇ is an integer of 1 to 7, preferably an integer of 1 to 3.
- Y is a divalent group having a hydrolyzable silyl group selected from alkoxysilyl group, aryloxysilyl group, acyloxysilyl group and aroyloxysilyl group, preferably Is a group represented by the following general formula (8), (9) or (10).
- D ′ is a divalent organic group having 1 to 10 carbon atoms which may be substituted with fluorine
- R 3 is a monovalent carbon having 1 to 20 carbon atoms.
- e is 1 or 2.
- D ' is a C1-C10, preferably C2-C8, optionally substituted divalent organic group, preferably a divalent hydrocarbon group, and as the divalent hydrocarbon group, a methylene group ,
- An alkylene group such as ethylene group, propylene group (trimethylene group, methylethylene group), butylene group (tetramethylene group, methylpropylene group), hexamethylene group, octamethylene group, arylene group such as phenylene group, or these groups And combinations of two or more thereof (such as alkylene and arylene groups) and those in which part or all of the hydrogen atoms of these groups are substituted with a fluorine atom.
- an ethylene group and a propylene group are preferable.
- R 3 is a monovalent hydrocarbon group having 1 to 20 carbon atoms, preferably 1 to 10 carbon atoms, and examples of the monovalent hydrocarbon group include a methyl group, an ethyl group, a propyl group, an isopropyl group and a butyl group.
- Alkyl group such as isobutyl group, tert-butyl group, pentyl group, neopentyl group, hexyl group and octyl group, cycloalkyl group such as cyclohexyl group, alkenyl group such as vinyl group, allyl group and propenyl group, phenyl group, Examples include aryl groups such as tolyl group, and aralkyl groups such as benzyl group, phenylethyl group and phenylpropyl group. Of these, methyl is preferred.
- Y include the following groups.
- ⁇ is an integer of 1 to 10, preferably an integer of 1 to 4.
- B is a hydrogen atom, an alkyl group such as a methyl group having 1 to 4 carbon atoms, an ethyl group, a propyl group or a butyl group, a fluorine atom, a chlorine atom or a bromine atom, It is a halogen atom such as iodine atom.
- fluoropolyether group-containing polymer modified hydrolyzable silane represented by the above formulas (3) and (4) a linking group Q is used. And Z group And a W group containing a hydrolyzable silyl group What is represented as is illustrated below.
- the combination of Q, Z and W is not limited to these, and by simply changing Q, Z and W, several fluoropolyether group-containing polymer modified hydrolyzable silanes can be obtained.
- the effect of the present invention can be exhibited with any fluoropolyether group-containing polymer modified hydrolyzable silane.
- Rfa -CF 2 O- (C 2 F 4 O) q1 (CF 2 O) p1 -CF 2 - and is, p1, q1 is .f1 p ', q' is the same as defined 1 It is an integer of ⁇ 10.
- Rfb is -CF 2 O- (C 2 F 4 O) q1 (CF 2 O) p1 -CF 2 - and is, p1, q1 .
- R 4 is the same as p ', q' respectively -CH 2 CH 2 -and / or -CH (CH 3 )-)
- Rfb is -CF 2 O- (C 2 F 4 O) q1 (CF 2 O) p1 -CF 2 - and is, p1, q1 is the same as p ', q', respectively.
- the terminal hydrolyzable group of the silane having a hydrolyzable silyl group modified with the above fluoropolyether group-containing polymer may contain partial hydrolytic condensates obtained by partially hydrolyzing and condensing previously by known methods.
- the molecular weights of the (A) component and the (B) component are the same (for example, the weight average molecular weight of the (B) component is 0.6 to 1.3 times the weight average molecular weight of the (A) component, particularly 0.7 And the weight average molecular weight of each of them is preferably 1,000 to 20,000, 2, More preferably, it is from 1,000 to 10,000. If the weight average molecular weight is too small, the water and oil repellency and low dynamic friction of the fluoropolyether group may not be exhibited. If the weight average molecular weight is too large, adhesion to the substrate may be deteriorated.
- the weight average molecular weight can be measured as a standard polystyrene equivalent value of gel permeation chromatography (GPC) using AK-225 (manufactured by Asahi Glass Co., Ltd.) as a developing solvent (the same applies hereinafter).
- GPC gel permeation chromatography
- the fluorine-containing coating agent composition of the present invention may further contain, as component (C), the following general formula (11) (Wherein, A is as defined above, and Rf ′ is a divalent fluorooxyalkylene group-containing polymer residue) And a fluoropolyether group-containing polymer (hereinafter sometimes referred to as a nonfunctional polymer) represented by
- A can exemplify the same as A exemplified above, and as A, -F -CF 3 -CF 2 CF 3 -CF 2 CF 2 CF 3 Is preferred.
- Rf ′ is a divalent fluorooxyalkylene group-containing polymer residue, and may be the same as or different from Rf exemplified above, and as Rf ′, those shown below are preferable.
- p2 is an integer of 5 to 200, preferably 10 to 100
- q2 is an integer of 5 to 200, preferably 10 to 100
- r2 is an integer of 10 to 200, preferably 20 to 100
- t2 is 5 to 200, preferably an integer of 10 to 100
- t3 is an integer of 10 to 200, preferably 20 to 100
- t2 + p2 is an integer of 10 to 200, preferably 20 to 100
- q2 + p2 is 10 to 200, preferably 20 to 100
- nonfunctional polymer represented by the formula (11) examples include the following. (Wherein, p2, q2, r2, t2, t3 are the same as above).
- the weight average molecular weight of the fluoropolyether group-containing polymer of the component (C) is preferably 1,000 to 50,000, more preferably 1,000 to 10,000, and further, the component (A)
- the weight average molecular weight is preferably in the range of 0.5 to 1.5 times the weight average molecular weight. When the weight average molecular weight is too small, the excellent slipperiness of the component (A) may be impaired, and when it is too large, the transparency of the coating film may be reduced.
- non-functional polymer of (C) component can use a commercial item and is marketed with the brand name of FOMBLIN, DEMNUM, KRYTOX, for example, it can obtain it easily.
- FOMBLIN FOMBLIN
- DEMNUM DEMNUM
- KRYTOX KRYTOX
- FOMBLIN Y (trade name of Solvay Solexis, FOMBLIN Y 25 (weight average molecular weight: 3,200), FOMBLIN Y 45 (weight average molecular weight: 4, 100)) (In the formula, t2 'and p2' are numbers satisfying the above weight average molecular weight.)
- FOMBLIN Z (trade name of Solvay Solexis, FOMBLIN Z 03 (weight average molecular weight: 4,000), FOMBLIN Z 15 (weight average molecular weight: 8,000), FOMBLIN Z 25 (weight average molecular weight: 9, 500)) (In the formula, q2 'and p2' are numbers satisfying the above weight average molecular weight.)
- DEMNUM (trade name of Daikin Industries, DEMNUM S20 (weight average molecular weight: 2,700), DEMNUM S 65 (weight average molecular weight: 4,500), DEMNUM S 100 (weight average molecular weight: 5,600)) (Wherein, r2 'is a number satisfying the weight average molecular weight.)
- KRYTOX (trade name of DuPont, KRYTOX 143 AB (weight average molecular weight: 3,500), KRYTOX 143 AX (weight average molecular weight: 4,700), KRYTOX 143 AC (weight average molecular weight: 5, 500), KRYTOX 143 AD (weight average molecular weight) : 7,000)) (In the formula, t3 'is a number satisfying the weight average molecular weight.)
- the amount of component (C) used is not particularly limited, but it is preferably in the range of 0 to 50% by mass, more preferably 5 to 50% by mass, based on the mass of component (A).
- hydrolytic condensation catalysts such as organic tin compounds (dibutyltin dimethoxide, dibutyltin dilaurate etc.), organic titanium compounds (tetra n-butyl titanate etc.), organic acids (fluorinated carboxylic acids, acetic acid, methane etc. Basic organic compounds such as sulfonic acids etc.), inorganic acids (hydrochloric acid, sulfuric acid etc.), compounds having primary amino group, compounds having secondary amino group, compounds having tertiary amino group, compounds having guanidyl group, etc.
- hydrolytic condensation catalysts such as organic tin compounds (dibutyltin dimethoxide, dibutyltin dilaurate etc.), organic titanium compounds (tetra n-butyl titanate etc.), organic acids (fluorinated carboxylic acids, acetic acid, methane etc. Basic organic compounds such as sulfonic acids etc.), inorganic acids (hydrochloric acid, sulfuric
- Examples thereof include compounds containing an alkali metal such as lithium, sodium and potassium, and compounds containing an alkaline earth metal such as magnesium and calcium.
- fluorine-based carboxylic acids, acetic acid, tetra n-butyl titanate, and dibutyltin dilaurate are particularly desirable.
- the addition amount of the hydrolytic condensation catalyst is a catalytic amount, but is usually 0.01 to 5 parts by mass, particularly 0.1 to 1 part by mass with respect to 100 parts by mass of the component (A).
- the fluorine-containing coating composition of the present invention can be prepared by uniformly mixing the above-mentioned components according to a conventional method.
- the surface treatment agent of the present invention comprises the above-mentioned fluorine-containing coating composition.
- the surface treatment agent of the present invention comprising the fluorine-containing coating composition containing the components (A) and (B) is generally a solvent in which these polymers (the components (A) and (B)) can be dissolved. Dissolved and diluted in The dilution solvent is not particularly limited as long as it can be uniformly dissolved.
- fluorine-modified aliphatic hydrocarbon solvents perfluorohexane, perfluoroheptane, perfluorooctane and the like
- fluorine-modified aromatic hydrocarbon solvents m-xylene hexafluoride, benzotrifluoride, 1,3-trifluoromethylbenzene etc.
- fluorine modified ether solvents methyl perfluoropropyl ether, methyl perfluorobutyl ether, ethyl perfluorobutyl ether, perfluoro (2-butyltetrahydrofuran) etc
- fluorine modified alkylamine solvents Perfluorotributylamine, perfluorotripentylamine, etc.
- partially fluorinated modified solvent (1,1,1,2,2,3,3,4,4-nonafluorohexane, 1,1,1,2,2 , 3, 4, 5, 5, 5-decaful Ropentane, 1,1,1,2,2,3,3,4,
- fluorine-modified fluorinated solvents are preferable in terms of solubility, wettability and the like, and in particular, ethyl perfluorobutyl ether, decafluoropentane and 1,1,1,3,3-pentafluorobutane are preferable. More preferable.
- the above solvents may be used alone or in combination of two or more.
- the optimum concentration of the components (A) and (B) to be dissolved in the solvent varies depending on the method of coating treatment, but the content of the component (A) in the entire surface treatment agent comprising the fluorine-containing coating composition and the solvent
- the amount is preferably in the range of 0.01 to 50% by mass, and more preferably in the range of 0.03 to 25% by mass.
- concentration of the component (A) is too low, sufficient antifouling property and water / oil repellency can not be obtained after the coating treatment, and when too high, the coating film becomes nonuniform, the transparency decreases, and the surface becomes sticky.
- the surface treatment agent comprising the fluorine-containing coating composition of the present invention can be applied to a substrate by known methods such as brushing, dipping, spraying and vapor deposition.
- the curing temperature varies depending on the curing method. For example, when applied by spray method, ink jet method, dipping method, brush coating, vacuum evaporation method, room temperature (20 ° C.) to 200 ° C., particularly 50 to 150 ° C. The range of is desirable.
- As curing humidity it is desirable to carry out under humidification in order to accelerate the reaction.
- the thickness of the cured film is appropriately selected depending on the type of the substrate, but is usually 0.1 to 100 nm, and particularly 3 to 30 nm. If the adhesion is poor, the adhesion can be improved by providing a SiO 2 layer as a primer layer, or performing vacuum plasma treatment, atmospheric pressure plasma treatment, or alkali treatment.
- the substrate to be treated with the surface treatment agent comprising the fluorine-containing coating composition of the present invention is not particularly limited, and various materials such as paper, cloth, metal and oxide thereof, glass, plastic, ceramic, quartz, etc. It may be.
- the surface treatment agent comprising the fluorine-containing coating composition of the present invention can impart water and oil repellency, chemical resistance, releasability, low dynamic friction, and stain resistance to these substrates. In particular, excellent anti-soiling performance can be imparted without impairing the transparency and texture of various articles, and the base material can be protected from the intrusion of chemicals and the like, and the anti-staining performance can be maintained for a long time.
- the articles to be treated with the surface treatment agent comprising the fluorine-containing coating composition of the present invention include optical articles, films, glass, quartz substrates, antireflective films and the like, and in particular touch panels, reflections It is used for prevention treatment articles, glass, tempered glass, sapphire glass, quartz glass, and SiO 2 treated substrates.
- the following compounds A1 to A4 are modified with a fluoropolyether group-containing polymer as a hydrolyzable alkoxysilyl group modified with a fluoropolyether group-containing polymer and / or an aryloxysilyl group-containing silane (A)
- the following compounds B1 and B2 were prepared as the functional acyloxysilyl group and / or aroyloxysilyl group-containing silane (B).
- Compound A1 (Weight average molecular weight: 4,600)
- C1 and C2 were prepared as curing catalysts for comparative examples.
- C1 trifluoroacetic acid
- C2 acetic acid
- Example 1 to 6 Preparation of Surface Treatment Agent
- any of the components A1 to A4 described above and any of the components B1 and B2 were mixed with the compositions described in Table 1 below (mixtures 1 to 6)
- the surface treatment agent was prepared by dissolving in 400 parts by weight of Novec 7200 (manufactured by 3M) so that the concentration of the mixture (total 100 parts by weight) would be 20% by mass.
- any of the components A1 to A4 described above, or this, and any of the curing catalysts C1 and C2 for Comparative Example are mixed in the composition described in Table 2 below (mixtures 7 to 12)
- the surface treatment agent was prepared by dissolving in 400 parts by weight of Novec 7200 (manufactured by 3M) such that the concentration of the mixture (total 100 parts by weight) was 20% by mass.
- the cured film in the above-mentioned test body was evaluated by the following method.
- [Water repellency] The contact angle of the cured film to water was measured using a contact angle meter DropMaster (manufactured by Kyowa Interface Science Co., Ltd.). The results are listed in Table 3 below.
- Comparative Examples 1 to 6 of Examples 1 to 6 and Comparative Examples 1 to 4 are polymers having an acyloxysilyl group at the end having the same molecular weight distribution in the polymer (A) having an alkoxysilyl group at the end It is a case where B) is added and blended.
- Comparative Examples 1 to 4 are cases where only the polymer (A) is used and the polymer (B) is not blended.
- the curing is accelerated by the acid (acetic acid) generated by the hydrolysis of the polymer (B).
- Comparative Examples 1 to 4 are only polymers of terminal alkoxysilane (methoxysilane), so hydrolysis is slow, film curing on the substrate is slow, and abrasion durability is inferior to those of Examples.
- Comparative Examples 5 and 6 of Example 6 and Comparative Examples 5 and 6 are examples in which an organic acidic compound is added as a catalyst in place of the component (B).
- these additives have a low boiling point, they are easily attracted to the vacuum exhaust line side and can hardly be fixed on the substrate surface, so no curing acceleration effect is seen and nothing is added It was at the same level as Comparative Example 4.
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Abstract
Description
一方、蒸着塗工は、真空中でポリマー成分を加熱・蒸発させて、基材に付着させる工程を取るが、添加剤が揮発しやすい場合、ポリマーより先に蒸発し、且つ真空ライン側に引き込まれやすく、基材に定着しづらいため十分な効果が得られないという問題があった。
[1]
下記(A)成分及び(B)成分を含有し、(A)成分と(B)成分の質量比が(A)/(B)=99.9/0.1~80/20((A)成分と(B)成分の質量の合計は100である)であることを特徴とする含フッ素コーティング剤組成物。
(A)フルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシラン及び/又はその部分加水分解縮合物であって、該加水分解性シリル基がアルコキシシリル基及び/又はアリーロキシシリル基である化合物、
(B)フルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシラン及び/又はその部分加水分解縮合物であって、該加水分解性シリル基がアシロキシシリル基及び/又はアロイルオキシシリル基である化合物。
[2]
(A)成分のフルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシランが、下記一般式(1)
-CgF2gO- (1)
(式中、gは単位毎に独立に1~6の整数である。)
で表される繰り返し単位を分子中に10~200個含み、かつフルオロポリエーテル基含有ポリマーの少なくとも1つの末端に下記一般式(2a)
で示される加水分解性アルコキシシリル基及び/又はアリーロキシシリル基を少なくとも1つ有するものである[1]記載の含フッ素コーティング剤組成物。
[3]
前記式(2a)において、R1がメチル基又はエチル基である[2]記載の含フッ素コーティング剤組成物。
[4]
(B)成分のフルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシランが、下記一般式(1)
-CgF2gO- (1)
(式中、gは単位毎に独立に1~6の整数である。)
で表される繰り返し単位を分子中に10~200個含み、かつフルオロポリエーテル基含有ポリマーの少なくとも1つの末端に下記一般式(2b)
で示される加水分解性アシロキシシリル基及び/又はアロイルオキシシリル基を少なくとも1つ有するものである[1]~[3]のいずれかに記載の含フッ素コーティング剤組成物。
[5]
前記式(2b)において、R2がメチル基又はエチル基であり、a’が1又は2である[4]記載の含フッ素コーティング剤組成物。
[6]
(A)成分及び(B)成分のフルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシランが、下記一般式(3)、(4)、(5)及び(6)で表されるフルオロポリエーテル基含有ポリマー変性加水分解性シランから選ばれる少なくとも1種であることを特徴とする[1]~[5]のいずれかに記載の含フッ素コーティング剤組成物。
A-Rf-QZ(W)α (3)
Rf-(QZ(W)α)2 (4)
A-Rf-Q-(Y)βB (5)
Rf-(Q-(Y)βB)2 (6)
[式中、Rfは-(CF2)d-O-(CF2O)p(CF2CF2O)q(CF2CF2CF2O)r(CF2CF2CF2CF2O)s(CF(CF3)CF2O)t-(CF2)d-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=10~200の整数であり、これらの括弧内に示される各単位はランダムに結合されていてよく、dは独立に0~5の整数である。Aはフッ素原子、水素原子、又は末端が-CF3基、-CF2H基もしくは-CFH2基である1価のフッ素含有基であり、Qは単結合、又はフッ素置換されていてもよい2価の有機基であり、Zは単結合、ジオルガノシリレン基、-JC=〔Jはアルキル基、ヒドロキシル基もしくはK3SiO-(Kは独立に水素原子、アルキル基、アリール基又はアルコキシ基)で示されるシリルエーテル基〕で示される3価の基、-LSi=(Lはアルキル基)で示される3価の基、-C≡で示される4価の基、-Si≡で示される4価の基、及び2~8価のシロキサン残基から選ばれる基であり、Wは下記一般式(7a)~(7d)
で示される基であり、fは1~10の整数であり、Dは単結合又は炭素数1~20のフッ素置換されていてもよい2価の有機基であり、mは2~6の整数であり、Meはメチル基である。〕
で表される加水分解性シリル基を有する基から選ばれる基であり、αは1~7の整数である。Yはアルコキシシリル基、アリーロキシシリル基、アシロキシシリル基又はアロイルオキシシリル基を有する2価の基であり、βは1~10の整数であり、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]
Yが下記一般式(8)~(10)で示される基から選ばれる少なくとも1種である[6]記載の含フッ素コーティング剤組成物。
[8]
Qが単結合又は下記式で示される2価の基から選ばれるものである[6]又は[7]記載の含フッ素コーティング剤組成物。
[9]
Zが単結合又は下記式で示される基から選ばれるものである[6]~[8]のいずれかに記載の含フッ素コーティング剤組成物。
[10]
更に、下記一般式(11)で表されるフルオロポリエーテル基含有ポリマー(C)を含有するものである[1]~[9]のいずれかに記載の含フッ素コーティング剤組成物。
[11]
[1]~[10]のいずれかに記載の含フッ素コーティング剤組成物を含む表面処理剤。
[12]
更に、フッ素原子を含有する溶剤で希釈したものである[11]記載の表面処理剤。
[13]
[11]又は[12]記載の表面処理剤で処理された物品。
[14]
[11]又は[12]記載の表面処理剤で処理されたタッチパネル。
[15]
[11]又は[12]記載の表面処理剤で処理された反射防止処理物品。
[16]
[11]又は[12]記載の表面処理剤で処理されたガラス、強化ガラス、サファイヤガラス、石英ガラス又はSiO2処理基板。
-CgF2gO- (1)
(式中、gは単位毎に独立に1~6の整数である。)
で表される繰り返し単位を分子中に10~200個、好ましくは20~100個含み、かつフルオロポリエーテル基含有ポリマーの少なくとも1つの末端、好ましくは1つ又は2つの末端、より好ましくは1つの末端に下記一般式(2a)
で示される加水分解性アルコキシシリル基及び/又はアリーロキシシリル基を少なくとも1つ有するものが好適に用いられる。
-CgF2gO- (1)
(式中、gは単位毎に独立に1~6の整数である。)
で表される繰り返し単位を分子中に10~200個、好ましくは20~100個含み、かつフルオロポリエーテル基含有ポリマーの少なくとも1つの末端、好ましくは1つ又は2つの末端、より好ましくは1つの末端に下記一般式(2b)
で示される加水分解性アシロキシシリル基及び/又はアロイルオキシシリル基を少なくとも1つ有するものが好適に用いられる。
-CF2O-
-CF2CF2O-
-CF2CF2CF2O-
-CF(CF3)CF2O-
-CF2CF2CF2CF2O-
-CF2CF2CF2CF2CF2O-
-CF2CF2CF2CF2CF2CF2O-
-C(CF3)2O-
Rは水素原子の一部がハロゲン原子で置換されていてもよい炭素数1~6の1価炭化水素基であり、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基、sec-ブチル基、tert-ブチル基、トリフルオロエチル基、トリクロロエチル基等の非置換又はハロゲン置換アルキル基、フェニル基等の非置換又はハロゲン置換アリール基等が挙げられる。中でもメチル基、エチル基が好適である。
Rは水素原子の一部がハロゲン原子で置換されていてもよい炭素数1~6の1価炭化水素基であり、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基、sec-ブチル基、tert-ブチル基、トリフルオロエチル基、トリクロロエチル基等の非置換又はハロゲン置換アルキル基、フェニル基等の非置換又はハロゲン置換アリール基等が挙げられる。中でもメチル基、エチル基が好適である。
A-Rf-QZ(W)α (3)
Rf-(QZ(W)α)2 (4)
A-Rf-Q-(Y)βB (5)
Rf-(Q-(Y)βB)2 (6)
〔式中、Rfは-(CF2)d-O-(CF2O)p(CF2CF2O)q(CF2CF2CF2O)r(CF2CF2CF2CF2O)s(CF(CF3)CF2O)t-(CF2)d-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=10~200の整数であり、これらの括弧内に示される各単位はランダムに結合されていてよく、dは独立に0~5の整数である。Aはフッ素原子、水素原子、又は末端が-CF3基、-CF2H基もしくは-CFH2基である1価のフッ素含有基であり、Qは単結合、又はフッ素置換されていてもよい2価の有機基であり、Zは単結合、ジオルガノシリレン基、-JC=〔Jはアルキル基、ヒドロキシル基もしくはK3SiO-(Kは独立に水素原子、アルキル基、アリール基又はアルコキシ基)で示されるシリルエーテル基〕で示される3価の基、-LSi=(Lはアルキル基)で示される3価の基、-C≡で示される4価の基、-Si≡で示される4価の基、及び2~8価のシロキサン残基から選ばれる基であり、Wは下記一般式(7a)~(7d)
で表される加水分解性シリル基を有する基から選ばれる基であり、αは1~7の整数である。Yはアルコキシシリル基、アリーロキシシリル基、アシロキシシリル基及びアロイルオキシシリル基から選ばれる加水分解性シリル基を有する2価の基であり、βは1~10の整数であり、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。〕
ここで、p、q、r、s、tはそれぞれ独立に0~200の整数、好ましくはpは5~100の整数、qは5~100の整数、rは0~100の整数、sは0~50の整数、tは0~100の整数であり、かつ、p+q+r+s+tは10~200の整数、好ましくは20~100の整数であり、これらの括弧内に示される各単位はランダムに結合されていてよい。dは独立に0~5の整数、好ましくは0~2の整数、更に好ましくは1又は2である。
-CF3
-CF2CF3
-CF2CF2CF3
-CF2H
-CFH2
該オルガノポリシロキサン残基は、炭素数1~8、より好ましくは1~4のメチル基、エチル基、プロピル基、ブチル基等のアルキル基又はフェニル基を有するものがよい。また、シルアルキレン結合におけるアルキレン基は、炭素数2~6、好ましくは2~4のものがよい。
Dは単結合、又は炭素数1~20、好ましくは炭素数2~8のフッ素置換されていてもよい2価の有機基、好ましくは2価炭化水素基であり、2価炭化水素基としては、メチレン基、エチレン基、プロピレン基(トリメチレン基、メチルエチレン基)、ブチレン基(テトラメチレン基、メチルプロピレン基)、ヘキサメチレン基、オクタメチレン基等のアルキレン基、フェニレン基等のアリーレン基、又はこれらの基の2種以上の組み合わせ(アルキレン・アリーレン基等)などや、これらの基の水素原子の一部又は全部がフッ素原子で置換されたもの等が挙げられる。Dとしては、エチレン基、プロピレン基、フェニレン基が好ましい。
D’は炭素数1~10、好ましくは炭素数2~8のフッ素置換されていてもよい2価の有機基、好ましくは2価炭化水素基であり、2価炭化水素基としては、メチレン基、エチレン基、プロピレン基(トリメチレン基、メチルエチレン基)、ブチレン基(テトラメチレン基、メチルプロピレン基)、ヘキサメチレン基、オクタメチレン基等のアルキレン基、フェニレン基等のアリーレン基、又はこれらの基の2種以上の組み合わせ(アルキレン・アリーレン基等)などや、これらの基の水素原子の一部又は全部がフッ素原子で置換されたもの等が挙げられる。D’としてはエチレン基、プロピレン基が好ましい。
また、上記式(5)、(6)において、Bは水素原子、炭素数1~4のメチル基、エチル基、プロピル基、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、ヨウ素原子等のハロゲン原子である。
で表されるフルオロポリエーテル基含有ポリマー(以下、無官能性ポリマーと称することもある)を含有してもよい。
-F
-CF3
-CF2CF3
-CF2CF2CF3
が好ましい。
(A)成分及び(B)成分を含有する含フッ素コーティング剤組成物を含んでなる本発明の表面処理剤は、一般にこれらのポリマー((A)成分及び(B)成分)が溶解可能な溶剤に溶解・希釈して使用される。希釈溶剤は均一に溶解可能なものであれば、特に限定されない。このような溶剤としては、フッ素変性脂肪族炭化水素系溶剤(パーフルオロヘキサン、パーフルオロヘプタン、パーフルオロオクタンなど)、フッ素変性芳香族炭化水素系溶剤(m-キシレンヘキサフルオライド、ベンゾトリフルオライド、1,3-トリフルオロメチルベンゼンなど)、フッ素変性エーテル系溶剤(メチルパーフルオロプロピルエーテル、メチルパーフルオロブチルエーテル、エチルパーフルオロブチルエーテル、パーフルオロ(2-ブチルテトラヒドロフラン)など)、フッ素変性アルキルアミン系溶剤(パーフルオロトリブチルアミン、パーフルオロトリペンチルアミンなど)、部分フッ素変性溶剤(1,1,1,2,2,3,3,4,4-ノナフルオロヘキサン、1,1,1,2,2,3,4,5,5,5-デカフルオロペンタン、1,1,1,2,2,3,3,4,4,5,5,6,6-トリデカフルオロヘキサン、1,1,1,2,2,3,3,4,4,5,5,6,6-トリデカフルオロオクタン、1,1,1,3,3-ペンタフルオロブタンなど)、炭化水素系溶剤(石油ベンジン、ミネラルスピリッツ、トルエン、キシレンなど)、ケトン系溶剤(アセトン、メチルエチルケトン、メチルイソブチルケトンなど)等の溶剤を例示することができる。これらの中では、溶解性、濡れ性などの点で、フッ素変性された含フッ素溶剤が望ましく、特にはエチルパーフルオロブチルエーテル、デカフルオロペンタン及び1,1,1,3,3-ペンタフルオロブタンがより好ましい。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。
なお、密着性が悪い場合には、プライマー層としてSiO2層を設けるか、真空プラズマ処理、大気圧プラズマ処理、アルカリ処理することによって密着性を向上させることができる。
C1:トリフルオロ酢酸
C2:酢酸
表面処理剤の調製
実施例1~6においては、上記したA1~A4成分のいずれかと、B1、B2成分のいずれかとをそれぞれ下記表1に記載の組成で混合し(混合物1~6)、該混合物(合計100質量部)の濃度が20質量%になるようにNovec 7200(3M社製)400質量部に溶解させて表面処理剤を調製した。比較例1~6においては、上記したA1~A4成分のいずれか、又はこれと、比較例用硬化触媒C1、C2のいずれかとをそれぞれ下記表2に記載の組成で混合し(混合物7~12)、該混合物(合計100質量部)の濃度が20質量%になるようにNovec 7200(3M社製)400質量部に溶解させて表面処理剤を調製した。
上記で調製した各表面処理剤を、最表面にSiO2を15nm処理したガラス(コーニング社製 Gorilla3)に下記条件により真空蒸着し、25℃、湿度50%の雰囲気下で1時間硬化させて被膜(膜厚:約10nm)を形成したものを下記評価における試験体とした。
[真空蒸着による塗工条件及び装置]
測定装置:小型真空蒸着装置VPC-250F
圧力:2.0×10-3Pa~3.0×10-2Pa
蒸着温度(ボートの到達温度):500℃
蒸着距離:20mm
処理剤の仕込量:5mg
蒸着量:5mg
[撥水性]
接触角計DropMaster(協和界面科学社製)を用いて、硬化被膜の水に対する接触角を測定した。結果を下記表3に記載する。
スチールウール(#0000)に対する耐摩耗性:
トライボギアTYPE:30S(新東科学社製)を用いて、硬化被膜を下記条件にて5,000回、10,000回往復摩耗した後に、硬化被膜の水に対する接触角を接触角計DropMaster(協和界面科学社製)を用いて測定した。結果を下記表3に記載する。なお、5,000回摩耗時に水接触角100°未満の場合は、以降の試験は実施しない。
接触面積:1cm2
荷重:1kg
移動距離(片道):30mm
移動速度:3,600mm/分
実施例1~6と比較例1~4の対比
実施例1~6は、末端にアルコキシシリル基を有するポリマー(A)に、同程度の分子量分布を有する末端にアシロキシシリル基を有するポリマー(B)を添加配合した場合である。一方、比較例1~4は、ポリマー(A)のみでポリマー(B)を配合しない場合である。実施例1~6は、ポリマー(A)及びポリマー(B)が基材に蒸着塗工されると、ポリマー(B)の加水分解によって発生する酸(酢酸)によって硬化が促進される。一方、比較例1~4は、末端アルコキシシラン(メトキシシラン)のポリマーだけなので、加水分解が遅く、基材上での被膜硬化が遅く、摩耗耐久性が実施例に比べて劣っている。
比較例5及び6は、(B)成分にかえて触媒として有機酸性化合物を添加した例である。真空蒸着において、これらの添加物は沸点が低いため、真空排気ライン側に吸引されやすく、基材表面にほとんど定着することができないため、硬化促進の効果が見られず、何も添加していない比較例4と同レベルであった。
Claims (16)
- 下記(A)成分及び(B)成分を含有し、(A)成分と(B)成分の質量比が(A)/(B)=99.9/0.1~80/20((A)成分と(B)成分の質量の合計は100である)であることを特徴とする含フッ素コーティング剤組成物。
(A)フルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシラン及び/又はその部分加水分解縮合物であって、該加水分解性シリル基がアルコキシシリル基及び/又はアリーロキシシリル基である化合物、
(B)フルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシラン及び/又はその部分加水分解縮合物であって、該加水分解性シリル基がアシロキシシリル基及び/又はアロイルオキシシリル基である化合物。 - (A)成分のフルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシランが、下記一般式(1)
-CgF2gO- (1)
(式中、gは単位毎に独立に1~6の整数である。)
で表される繰り返し単位を分子中に10~200個含み、かつフルオロポリエーテル基含有ポリマーの少なくとも1つの末端に下記一般式(2a)
で示される加水分解性アルコキシシリル基及び/又はアリーロキシシリル基を少なくとも1つ有するものである請求項1記載の含フッ素コーティング剤組成物。 - 前記式(2a)において、R1がメチル基又はエチル基である請求項2記載の含フッ素コーティング剤組成物。
- (B)成分のフルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシランが、下記一般式(1)
-CgF2gO- (1)
(式中、gは単位毎に独立に1~6の整数である。)
で表される繰り返し単位を分子中に10~200個含み、かつフルオロポリエーテル基含有ポリマーの少なくとも1つの末端に下記一般式(2b)
で示される加水分解性アシロキシシリル基及び/又はアロイルオキシシリル基を少なくとも1つ有するものである請求項1~3のいずれか1項記載の含フッ素コーティング剤組成物。 - 前記式(2b)において、R2がメチル基又はエチル基であり、a’が1又は2である請求項4記載の含フッ素コーティング剤組成物。
- (A)成分及び(B)成分のフルオロポリエーテル基含有ポリマーで変性された加水分解性シリル基を有するシランが、下記一般式(3)、(4)、(5)及び(6)で表されるフルオロポリエーテル基含有ポリマー変性加水分解性シランから選ばれる少なくとも1種であることを特徴とする請求項1~5のいずれか1項記載の含フッ素コーティング剤組成物。
A-Rf-QZ(W)α (3)
Rf-(QZ(W)α)2 (4)
A-Rf-Q-(Y)βB (5)
Rf-(Q-(Y)βB)2 (6)
[式中、Rfは-(CF2)d-O-(CF2O)p(CF2CF2O)q(CF2CF2CF2O)r(CF2CF2CF2CF2O)s(CF(CF3)CF2O)t-(CF2)d-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=10~200の整数であり、これらの括弧内に示される各単位はランダムに結合されていてよく、dは独立に0~5の整数である。Aはフッ素原子、水素原子、又は末端が-CF3基、-CF2H基もしくは-CFH2基である1価のフッ素含有基であり、Qは単結合、又はフッ素置換されていてもよい2価の有機基であり、Zは単結合、ジオルガノシリレン基、-JC=〔Jはアルキル基、ヒドロキシル基もしくはK3SiO-(Kは独立に水素原子、アルキル基、アリール基又はアルコキシ基)で示されるシリルエーテル基〕で示される3価の基、-LSi=(Lはアルキル基)で示される3価の基、-C≡で示される4価の基、-Si≡で示される4価の基、及び2~8価のシロキサン残基から選ばれる基であり、Wは下記一般式(7a)~(7d)
で示される基であり、fは1~10の整数であり、Dは単結合又は炭素数1~20のフッ素置換されていてもよい2価の有機基であり、mは2~6の整数であり、Meはメチル基である。〕
で表される加水分解性シリル基を有する基から選ばれる基であり、αは1~7の整数である。Yはアルコキシシリル基、アリーロキシシリル基、アシロキシシリル基又はアロイルオキシシリル基を有する2価の基であり、βは1~10の整数であり、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。] - 請求項1~10のいずれか1項記載の含フッ素コーティング剤組成物を含む表面処理剤。
- 更に、フッ素原子を含有する溶剤で希釈したものである請求項11記載の表面処理剤。
- 請求項11又は12記載の表面処理剤で処理された物品。
- 請求項11又は12記載の表面処理剤で処理されたタッチパネル。
- 請求項11又は12記載の表面処理剤で処理された反射防止処理物品。
- 請求項11又は12記載の表面処理剤で処理されたガラス、強化ガラス、サファイヤガラス、石英ガラス又はSiO2処理基板。
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JP7456499B2 (ja) | 2020-04-14 | 2024-03-27 | 信越化学工業株式会社 | フルオロポリエーテル基含有ポリマー及び/又はその部分(加水分解)縮合物を含む表面処理剤及び物品 |
WO2023132276A1 (ja) * | 2022-01-05 | 2023-07-13 | Agc株式会社 | 組成物、組成物の製造方法、コーティング液、物品及び物品の製造方法 |
WO2023136143A1 (ja) * | 2022-01-11 | 2023-07-20 | Agc株式会社 | 表面処理剤、物品、物品の製造方法 |
WO2023136144A1 (ja) * | 2022-01-11 | 2023-07-20 | Agc株式会社 | 表面処理剤、物品、物品の製造方法 |
WO2023149339A1 (ja) * | 2022-02-04 | 2023-08-10 | Agc株式会社 | 表面処理剤、物品、物品の製造方法 |
WO2023149340A1 (ja) * | 2022-02-04 | 2023-08-10 | Agc株式会社 | 表面処理剤、物品、物品の製造方法 |
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CN111315834B (zh) | 2022-03-01 |
KR20240096851A (ko) | 2024-06-26 |
CN111315834A (zh) | 2020-06-19 |
TW201927942A (zh) | 2019-07-16 |
JPWO2019077947A1 (ja) | 2020-10-22 |
KR102675047B1 (ko) | 2024-06-14 |
TWI776970B (zh) | 2022-09-11 |
JP6888685B2 (ja) | 2021-06-16 |
KR20200072515A (ko) | 2020-06-22 |
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