WO2010110149A1 - Agent de traitement de surface - Google Patents

Agent de traitement de surface Download PDF

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Publication number
WO2010110149A1
WO2010110149A1 PCT/JP2010/054576 JP2010054576W WO2010110149A1 WO 2010110149 A1 WO2010110149 A1 WO 2010110149A1 JP 2010054576 W JP2010054576 W JP 2010054576W WO 2010110149 A1 WO2010110149 A1 WO 2010110149A1
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Prior art keywords
polymer
formula
group
surface treatment
mass
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PCT/JP2010/054576
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English (en)
Japanese (ja)
Inventor
涼 平林
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Ａｇｃセイミケミカル株式会社
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Priority to JP2011505998A priority Critical patent/JP5613659B2/ja
Publication of WO2010110149A1 publication Critical patent/WO2010110149A1/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3452—Solder masks
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • C09D133/16—Homopolymers or copolymers of esters containing halogen atoms
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/22—Secondary treatment of printed circuits
    • H05K3/28—Applying non-metallic protective coatings
    • H05K3/285—Permanent coating compositions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/22—Esters containing halogen
    • C08F220/24—Esters containing halogen containing perhaloalkyl radicals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
    • C08L33/16—Homopolymers or copolymers of esters containing halogen atoms
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01—Dielectrics
    • H05K2201/0137—Materials
    • H05K2201/015—Fluoropolymer, e.g. polytetrafluoroethylene [PTFE]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
    • H05K2203/1173—Differences in wettability, e.g. hydrophilic or hydrophobic areas

Definitions

  • the present invention relates to a surface treatment agent that imparts water repellency, oil repellency and IPA repellency to various substrates.
  • a polymer of (meth) acrylic acid ester having a linear or terminally branched perfluoroalkyl group having a carbon chain length of 8 or more has been used as a fluorine-based surface treatment agent.
  • the crystallinity of the side chain (CF 2 ) 8 F group is high water repellency, oil repellency, and the ability to repel 2-propanol (also referred to as IPA) used as a solvent such as flux. This was to show IPA performance.
  • a polymer obtained from an acrylate ester having a linear perfluoroalkyl group having 6 carbon atoms exhibits high oil repellency and IPA performance, but Tg is It has been found to have a low and unique tack.
  • the methacrylic acid ester having a linear perfluoroalkyl group having 6 carbon atoms has a slight decrease in oil repellency and IPA performance due to the influence of the methyl group in the main chain.
  • the present invention relates to a polymer obtained from an acrylate ester having a linear perfluoroalkyl group having 6 carbon atoms and a linear perfluoroalkyl group having 6 carbon atoms, which has little influence on the living body and the environment.
  • An object of the present invention is to provide a surface treatment agent that uses a polymer obtained from a methacrylic acid ester and has excellent water repellency, oil repellency and IPA repellency. Furthermore, it aims at reducing the adhesiveness of a film, maintaining these performances.
  • a polymer obtained from an acrylate ester having a linear perfluoroalkyl group having 6 carbon atoms and a linear structure having 6 carbon atoms By mixing a polymer obtained from an acrylate ester having a perfluoroalkyl group, it is possible to provide a surface treatment agent having better water repellency, oil repellency and IPA repellency than those used alone. I found out.
  • the present invention provides the following surface treatment agent.
  • the surface treating agent of the present invention comprises an acrylic polymer (1) containing a polymer unit (A) derived from a compound represented by the following formula (a) at a content of 80% by mass or more, and the following formula (b): And a methacrylic polymer (2) containing a polymerization unit (B) derived from the compound represented by formula (B) in a content of 80% by mass or more.
  • CH 2 CH-COO- (CH 2 ) n1- (CF 2 ) 6 F
  • n 1 is an integer of 0-4.
  • Formula (b) In the formula (b), n 2 is an integer of 0-4.
  • At least one of the acrylic polymer (1) and the methacrylic polymer (2) further contains a polymer unit (C) derived from a compound represented by the following formula (c).
  • a polymer unit (C) derived from a compound represented by the following formula (c).
  • R a hydrogen atom or a methyl group
  • Q a divalent linking group
  • Y a monovalent functional group.
  • the mass ratio (1) / (2) between the acrylic polymer (1) and the methacrylic polymer (2) is preferably 50/50 to 5/95.
  • Y in the formula (c) is preferably a hydroxyl group, a carboxyl group or an alkoxysilyl group.
  • the weight average molecular weight (in terms of polymethyl methacrylate) of the acrylic polymer (1) and the methacrylic polymer (2) is preferably 100,000 or more.
  • the surface treatment agent of the present invention can be used as a solder flux creep-up preventive agent, a lubricant oozing-out preventive agent, a waterproof / moisture-proof coating agent, and an electronic component resin adhesion preventive agent.
  • the present invention also provides a substrate coated with the surface treating agent of the present invention.
  • the surface treatment agent of the present invention comprises a polymer obtained from an acrylate ester having a linear perfluoroalkyl group having 6 carbon atoms, while suppressing the carbon number of the perfluoroalkyl group to 6 or less,
  • a polymer obtained from an acrylate ester having a linear perfluoroalkyl group of 6 it is possible to have better water repellency, oil repellency and IPA repellency than those used alone. did it. In particular, high IPA repellency could be achieved even at low concentrations.
  • an acrylic ester having a linear perfluoroalkyl group having 6 carbon atoms while maintaining water repellency, oil repellency and IPA repellency It was also possible to improve the tackiness of the coating, which occurs when the polymer obtained from the above is used alone.
  • (meth) acrylate represents both or one of acrylic ester and methacrylic ester.
  • the acrylic polymer (1) (hereinafter also referred to as “the acrylic polymer (1) of the present invention”), which is an essential component of the surface treating agent of the present invention, is derived from a compound represented by the following formula (a).
  • a polymerization unit (A) is contained and the content is 80 mass% or more.
  • the methacrylic polymer (2) (hereinafter also referred to as “the methacrylic polymer (2) of the present invention”), which is an essential component of the surface treating agent of the present invention, is derived from a compound represented by the following formula (b).
  • a polymerization unit (B) is contained, and the content thereof is 80% by mass or more.
  • n 1 is an integer of 0-4.
  • n 2 is an integer of 0-4.
  • n 1 and n 2 are both preferably 0 to 3, more preferably 1 or 2.
  • the compound (a) and the compound (b) may be one kind or plural kinds respectively.
  • the mass ratio of each polymer unit in each polymer is a value that is considered that all the raw materials used in each polymerization constitute a polymer unit. Therefore, for example, the mass ratio of the polymerized units (A) in the acrylic polymer (1) (percentage of the mass of the polymerized units (A) contained therein with respect to the total polymerized unit mass of the acrylic polymer (1)) is substantially equal to And the ratio of the mass of the compound (a) used for the polymerization of the acrylic polymer (1) to the total mass of the polymerization raw material compound of the acrylic polymer (1).
  • the mass ratio of other polymer units in the polymer can be obtained in the same manner.
  • the mass ratio of the polymer units (B) in the methacrylic polymer (2) is the same as that of the polymerization raw material compound of the methacrylic polymer (2) in the mass of the compound (b) used for the polymerization of the methacrylic polymer (2). It is determined as a percentage of the total mass.
  • the content of the polymerization unit (A) is 80% by mass or more, and preferably 90% by mass or more.
  • the content of the polymer unit (B) is also 80% by mass or more, and preferably 90% by mass. This is because the water-repellent performance, oil-repellent performance and IPA-repellent performance of the surface treatment agent of the present invention are good when the content is in the above range.
  • the water repellency, oil repellency and IPA performance are collectively referred to as water repellency, oil repellency and IPA performance.
  • the acrylic polymer (1) and methacrylic polymer (2) of the present invention preferably contain a polymer unit (C) derived from a compound represented by the following formula (c).
  • the content of the polymer unit (C) is usually 10% by mass or less in both the acrylic polymer (1) and the methacrylic polymer (2). Among these, 0.1 to 10% by mass is preferable, 0.5 to 5% by mass is more preferable, and 1 to 2% by mass is particularly preferable.
  • the polymerization unit (C) is contained, the adhesion to the substrate is improved. However, when the content is too large, the water / oil / oil repellency / IPA performance is lowered.
  • R is preferably a methyl group because it does not increase the adhesion of the film and does not decrease the hardness of the film.
  • Y can be appropriately selected as long as it is a monovalent functional group.
  • a hydroxyl group, a carboxy group, or an alkoxysilyl group is preferable because it improves adhesion to the substrate.
  • Q in the formula is a divalent linking group.
  • Q can be appropriately selected as long as it is a divalent linking group.
  • divalent linking group examples include linear or branched alkylene groups or alkenylene groups, oxyalkylene groups, 6-membered aromatic groups, 4- to 6-membered saturated or unsaturated aliphatic groups, and 5-6. And a divalent linking group represented by the formula -X 1 -ZX 2- . These divalent linking groups may be combined, and a plurality of cyclic groups may be condensed. You may do it.
  • the symbols in the above formula have the following meanings.
  • X 1 and X 2 each independently a linear or branched alkylene group or oxyalkylene group, a 6-membered aromatic group, a 4- to 6-membered saturated or unsaturated aliphatic group, 5 to 6 A membered heterocyclic group or a condensed ring group thereof; Z: —O—, —S—, —CO—, —COO—, —COS—, —N (R 1 ) —, —SO 2 —, —PO (OR 1 ) —, —N (R 1 ) — COO—, —N (R 1 ) —CO—, —N (R 1 ) —SO 2 — or —N (R 1 ) —PO (OR 1 ) —.
  • R 1 a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.
  • the above linking group may have a substituent.
  • substituents include a halogen atom (F, Cl, Br, I), a hydroxyl group, a cyano group, an alkoxy group (methoxy, ethoxy, butoxy, octyl).
  • the compound (c) is preferably a compound represented by the following formula when Y is a hydroxyl group.
  • R has the same meaning as described above.
  • Q 1 is a linear or branched alkylene group, — (C 2 H 4 O) n —, — (C 3 H 6 O) n —, or a combination thereof (where n is 1 to 30). Is an integer). These groups may have a substituent.
  • the compound (c) is preferably a compound represented by the following formula when Y is a carboxy group. CH 2 ⁇ C (R) —COO—Q 2 —COOH Formula (c2)
  • R has the same meaning as described above.
  • Q 2 represents a linear or branched alkylene group, phenylene group, cyclohexylene group, — (C 2 H 4 O) n —, — (C 3 H 6 O) n —, or the above formula —X 1 —Z—.
  • X 1 and X 2 each independently a linear or branched alkylene group, phenylene group, cyclohexylene group, — (C 2 H 4 O) n— or — (C 3 H 6 O) n— Yes, Z: —O—, —S—, —CO—, —COO—, —N (R 1 ) —, —N (R 1 ) —COO—, —N (R 1 ) —CO— (R 1 Is the same as above).
  • the compound (c) is preferably a compound represented by the following formula when Y is an alkoxysilyl group.
  • CH 2 C (R) —C (O) OQ 3 —Si (OAk) 3 formula (c3)
  • R has the same meaning as described above.
  • Q 3 is a linear or branched alkylene group, and the alkylene group may have a substituent.
  • Ak is a linear or branched alkyl group having 1 to 3 carbon atoms.
  • the acrylic polymer (1) of the present invention may contain other polymer units (D) in addition to the polymer units (A) and polymer units (C) as described above.
  • the methacrylic polymer (2) of the present invention may contain other polymer units (D) in addition to the polymer units (B) and polymer units (C) as described above.
  • the other polymer unit (D) is not particularly limited as long as it is a polymer unit derived from a compound that can be copolymerized with the compound that forms the polymer units (A), (B), and (C).
  • the compound (d) which has a polymeric group is mentioned normally, Specifically, other than the compound illustrated about the styrene-type compound (d1) and the said polymerization unit (A), (B) and (C). And a compound (d3) having an unsaturated group such as the (meth) acrylic acid compound (d2) and a compound (d3) which is another polymerizable compound. Specific examples of such compound (d) are shown below, but are not limited thereto.
  • Compound (d) is not particularly limited as long as it is another compound capable of forming a polymer with (meth) acrylate. Specifically, a styrenic compound (d1), a compound (a) other than the above compound (a), a compound (b), a (meth) acrylic acid compound (d2) other than the compound (c), and other polymerizable compounds ( d3). Specific examples of such compound (d) are shown below, but are not limited thereto.
  • R 2 —H, CH 3 , —Cl, —CHO, —COOH, —CH 2 Cl, —CH 2 NH 2 , —CH 2 N (CH 3 ) 2 , —CH 2 N + (CH 3 ) 3 Cl ⁇ , —CH 2 N + H 3 Cl ⁇ , —CH 2 CN, —CH 2 COOH, —CH 2 N (CH 2 COOH) 2 , —CH 2 SH, —CH 2 SO 3 Na or —CH it is a 2 OCOCH 3.
  • Examples of the compound (d2) include acrylic acid, methacrylic acid, ⁇ -chloroacrylic acid, and (meth) acrylate represented by the following formula.
  • Examples of the compound (d2) include (meth) acrylamide represented by the following formula.
  • CH 2 C (R 1 ) -CONH-R 4
  • R 1 is H or CH 3
  • Examples of the compound (d2) further include (meth) acrylic acid diesters, and (meth) acrylic acid polyesters such as compounds represented by the following formulas.
  • R in the above formula is a (meth) acryloyloxy group.
  • vinyl compounds other than the above (d1) and (d2) for example, vinyl chloride (CH 2 ⁇ CHCl), acrylonitrile (CH 2 ⁇ CHCN), or a compound having the following epoxy group: Can be mentioned.
  • the compound (d) may be a compound having a plurality of polymerizable functional groups.
  • the specific example which has 3 or more of vinyl groups or an epoxy group is shown below, it is not limited to these.
  • the mass of the total amount of these other polymer units in the acrylic polymer (1) is different depending on the type. Is preferably 20% by mass or less, and more preferably 10% by mass or less.
  • the methacrylic polymer (2) of the present invention contains other polymerized units (D) as described above, the total amount of these other polymerized units in the methacrylic polymer (2) varies depending on the type. Is preferably 20% by mass or less, and more preferably 10% by mass or less.
  • the polymerization unit (D) is excessively contained, the water / oil repellency / IPA performance is lowered.
  • the mass ratio (1) / (2) of the acrylic polymer (1) and the methacrylic polymer (2) of the present invention reduces the tackiness and improves the film properties while achieving high repellency.
  • a range of 50/50 to 5/95 is preferable. More preferably, it is in the range of 30/70 to 10/90.
  • the molecular weight of the acrylic polymer of the present invention (1) and methacrylic polymer (2) is not particularly limited, is preferably 1 ⁇ 10 3 ⁇ 1 ⁇ 10 7 in terms of weight-average molecular weight (Mw), 1 ⁇ 10 5 More preferably, it is ⁇ 1 ⁇ 10 6 .
  • Mw weight-average molecular weight
  • the molecular weight is within such a range, high water / oil repellency / IPA performance can be exhibited even at a low concentration.
  • the solubility of the polymer of the present invention in a solvent tends to be poor.
  • the acrylic polymer (1) and the methacrylic polymer (2) of the present invention are not particularly limited in the form of polymerization.
  • the form of polymerization in the case of a copolymer is not particularly limited and may be any of random, block, graft and the like, but is preferably a random polymer.
  • the method for producing the polymer is not particularly limited, and various known methods can be adopted.
  • addition polymerization can be performed based on an unsaturated group in each compound.
  • the polymerization can be carried out by appropriately adopting known addition polymerization conditions for unsaturated compounds.
  • a normal initiator such as an organic peroxide, an azo compound, or a persulfate can be used as a polymerization initiation source.
  • the surface treating agent of the present invention is a liquid form containing the specific acrylic polymer (1) and methacrylic polymer (2) as described above as a film component, and containing the polymer in a solvent.
  • the method for producing the surface treatment agent of the present invention is not limited. For example, it can be obtained by dissolving the acrylic polymer (1) and methacrylic polymer (2) of the present invention in a known solvent. Further, for example, the acrylic polymer (1) of the present invention is produced by solution polymerization using the solvent as a polymerization medium by adding the compound (a), and the methacrylic polymer (2) is similarly produced from the compound (b).
  • the surface treatment agent of the present invention is prepared by mixing the solution containing the acrylic polymer (1) of the present invention in the solvent and the solvent containing the methacrylic polymer (2). It can also be.
  • a solution containing the acrylic polymer (1) of the present invention and a solution containing the methacrylic polymer (2) can be obtained by emulsion polymerization, and these can be mixed to obtain the surface treating agent of the present invention.
  • the polymerization raw material compound is a gas such as vinyl chloride, it may be continuously supplied under pressure using a pressure vessel.
  • the solvent for forming the surface treating agent of the present invention is not particularly limited as long as it can dissolve or disperse the acrylic polymer (1) and methacrylic polymer (2) of the present invention, and various organic solvents, water or These mixed media etc. are mentioned.
  • a fluorine-based solvent is preferable.
  • the fluorine-based solvent include hydrofluorocarbon (HFC) or hydrofluoroether (HFE). Specific examples of usable fluorinated solvents are shown below, but are not limited thereto.
  • m-Xylene hexafluoride (hereinafter referred to as m-XHF) p-Xylene hexafluoride CF 3 CH 2 CF 2 CH 3 CF 3 CH 2 CF 2 H C 6 F 13 OCH 3 C 6 F 13 OC 2 H 5 C 6 F 13 CH 2 CH 3 C 3 F 7 OCH 3 C 3 F 7 OC 2 H 5 C 6 F 13 H CF 2 HCF 2 CH 2 OCF 2 CF 2 H CF 3 CFHCHFHCF 2 CH 3 CF 3 (OCF 2 CF 2 ) n (OCF 2 ) m OCF 2 H C 8 F 17 OCH 3 C 7 F 15 OCH 3 C 4 F 9 OCH 3 C 4 F 9 OC 2 H 5 C 4 F 9 CH 2 CH 3 CF 3 CH 2 OCF 2 CF 2 H (In the above examples, the subscripts m and n each independently represent an integer of 1 to 20) And mixtures of these.
  • a hydrofluoroether mixture of CF 3 (CF 2 ) 3 OC 2 H 5 and (CF 3 ) 2 CFCF 2 OC 2 H 5 is available under the trade name Novec HFE 7200 (manufactured by 3M).
  • the concentration of the surface treatment agent of the present invention is properly used depending on the application.
  • the total concentration of the acrylic polymer (1) and the methacrylic polymer (2) is preferably 1 to 20% by mass.
  • the total concentration of the acrylic polymer (1) and the methacrylic polymer (2) is preferably 1 to 5% by mass.
  • the total concentration of the acrylic polymer (1) and the methacrylic polymer (2) is preferably 0.01 to 1% by mass.
  • the total concentration of the acrylic polymer (1) and the methacrylic polymer (2) of the present invention in the surface treatment agent of the present invention may be a final concentration.
  • the solder flux creep-up preventing agent of the present invention is directly prepared.
  • the polymer concentration (solid content concentration) in the solution containing the polymer immediately after polymerization may exceed 1% by mass.
  • a solution containing a high-concentration polymer can be appropriately diluted so that the final desired concentration is obtained.
  • the diluted solution can be used as a surface treatment agent as it is.
  • the surface treatment agent of the present invention may contain components other than those described above as long as the stability, performance, appearance, etc. are not adversely affected.
  • Such other components include, for example, the purpose of controlling the concentration of the polymer in the liquid when diluting a pH adjuster, a rust inhibitor, and a surface treatment agent to prevent corrosion of the coating surface.
  • examples thereof include dyes for distinguishing from untreated parts, dye stabilizers, flame retardants, antifoaming agents and antistatic agents.
  • the surface treatment agent of the present invention can be used by forming a film by coating it on a portion where water / oil / oil repellency / IPA performance is desired.
  • the coating is formed by removing the solvent from the surface treatment agent of the present invention, and mainly comprises the acrylic polymer (1) and the methacrylic polymer (2) of the present invention.
  • the coating film may be formed only from the acrylic polymer (1) and the methacrylic polymer (2) of the present invention, and other components are included within a range not adversely affecting as described above. It means that it may contain.
  • a coating method a general coating method can be adopted. For example, there are methods such as dip coating, spray coating, and roller coating.
  • the surface treatment agent of the present invention After applying the surface treatment agent of the present invention, it is preferable to perform drying at a temperature not lower than the boiling point of the solvent.
  • a temperature not lower than the boiling point of the solvent For course, when it is difficult to heat and dry due to the material of the part to be processed, it should be dried while avoiding heating.
  • what is necessary is just to select the conditions of heat processing according to the composition of the surface treating agent to apply
  • the surface treatment agent of the present invention can be applied to the treatment of various materials, and in particular, for the treatment of precision equipment parts, sliding parts (motors, watches, HDDs), and electrical parts (electronic circuits, substrates, electronic parts, etc.). It is preferable to use it.
  • the surface treatment agent of the present invention is preferably used as a solder flux creeping-up inhibitor, a lubricant oozing-out preventing agent, a waterproof coating agent, a moisture-proof coating agent and an electronic component resin adhesion preventing agent.
  • it since it has a high IPA repellency even at a low concentration, it is preferably used as a solder flux creep-up preventing agent.
  • Example 1 [Polymers 1 and 2] Each compound, polymerization solvent (m-XHF) and initiator (V-601) were charged in a sealed container so that the charging ratio (parts by mass) and concentration shown in Table 5 were obtained, and the reaction was carried out at 70 ° C. for 18 hours or more. And polymers 1 and 2 were obtained. Table 5 shows the results of measuring the weight average molecular weight (Mw) of the obtained polymer.
  • a glass plate was immersed in each of the surface treatment agents 1 to 9 and the comparative surface treatment agents 1 and 2 having the polymer concentration adjusted to 0.1% by mass and 0.01% by mass at room temperature. And it took out after 1 minute and was made to dry at room temperature, and each glass plate which has a film of each processing agent was obtained. Next, IPA was dropped on the coating of each glass plate on which each type of coating was formed, and the contact angle was measured. For the measurement of each contact angle, an automatic contact angle meter OCA-20 (manufactured by dataphysics) was used.
  • the surface treatment agent of the present invention is equivalent to or higher in water repellency and oil repellency than the comparative surface treatment agent containing only one of the acrylic polymer (1) and the methacrylic polymer (2).
  • IPA repellency especially high IPA repellency at low concentrations.
  • the mass ratio which is the mixing ratio of the acrylic polymer (1) and the methacrylic polymer (2), the adhesiveness of the coating is reduced without reducing the water repellency, oil repellency and IPA repellency. It has been found that the surface treatment agent has excellent performance with improved properties.
  • Example 2 Next, other polymers were prepared as other acrylic polymer (1) and methacrylic polymer (2), and a surface treatment agent and a comparative surface treatment agent were prepared using the other polymers.
  • Polymers 3-5 In the same manner as the polymers 1 and 2, polymers 3 to 5 were obtained. Table 7 shows the results obtained by measuring the Mw of the obtained polymer in the same manner as in polymers 1 and 2.
  • the surface treatment agent of the present invention is superior to the comparative surface treatment agent containing only one of the acrylic polymer (1) or the methacrylic polymer (2). It turned out that it becomes the surface treating agent which has performance.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Paints Or Removers (AREA)

Abstract

L'agent de traitement de surface ci-décrit utilise un polymère formé à partir d'un composé contenant un groupe perfluoroalkyle linéaire ayant 6 atomes de carbone et ayant moins d'effet sur les organismes vivants et l'environnement, et possède d'excellentes propriétés hydrofuges, oléofuges et anti-IPA. L'agent de traitement de surface selon l'invention comprend (1) un polymère acrylique contenant un motif de polymérisation (A) dérivé d'un composé représenté par la formule (a) à une teneur de 80 % en poids ou plus et (2) un polymère méthacrylique contenant un motif de polymérisation (B) dérivé d'un composé représenté par la formule (b) à une teneur de 80 % en poids ou plus dans un solvant. CH2=CH-COO-(CH2)n1-(CF2)6F Formule (a) Dans la formule (a), n1 est un nombre entier de 0 à 4. CH2=C(CH3)-COO-(CH2)n2-(CF2)6F Formule (b) Dans la formule (b), n2 est un nombre entier de 0 à 4.
PCT/JP2010/054576 2009-03-23 2010-03-17 Agent de traitement de surface WO2010110149A1 (fr)

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JP2012214664A (ja) * 2011-03-31 2012-11-08 Agc Seimi Chemical Co Ltd 表面処理剤
JP2013151648A (ja) * 2011-12-26 2013-08-08 Agc Seimi Chemical Co Ltd 混合溶剤および表面処理剤
WO2013151003A1 (fr) * 2012-04-02 2013-10-10 ダイキン工業株式会社 Composition de revêtement durable imperméable à l'eau et résistant à l'humidité
WO2013168763A1 (fr) * 2012-05-11 2013-11-14 ダイキン工業株式会社 Composition de revêtement pour étanchéifier à l'eau et étanchéifier à l'humidité
JP2021065267A (ja) * 2019-10-18 2021-04-30 テックワン株式会社 使用によって傘のシートの撥水性が低下したのを回復させる方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012214664A (ja) * 2011-03-31 2012-11-08 Agc Seimi Chemical Co Ltd 表面処理剤
JP2013151648A (ja) * 2011-12-26 2013-08-08 Agc Seimi Chemical Co Ltd 混合溶剤および表面処理剤
WO2013151003A1 (fr) * 2012-04-02 2013-10-10 ダイキン工業株式会社 Composition de revêtement durable imperméable à l'eau et résistant à l'humidité
WO2013168763A1 (fr) * 2012-05-11 2013-11-14 ダイキン工業株式会社 Composition de revêtement pour étanchéifier à l'eau et étanchéifier à l'humidité
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JP2021065267A (ja) * 2019-10-18 2021-04-30 テックワン株式会社 使用によって傘のシートの撥水性が低下したのを回復させる方法

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