WO2007108248A1 - 成形体の前処理方法、接着物品及びその製造方法、並びに塗装物品及びその製造方法 - Google Patents

成形体の前処理方法、接着物品及びその製造方法、並びに塗装物品及びその製造方法 Download PDF

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Publication number
WO2007108248A1
WO2007108248A1 PCT/JP2007/052360 JP2007052360W WO2007108248A1 WO 2007108248 A1 WO2007108248 A1 WO 2007108248A1 JP 2007052360 W JP2007052360 W JP 2007052360W WO 2007108248 A1 WO2007108248 A1 WO 2007108248A1
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WO
WIPO (PCT)
Prior art keywords
molded body
adhesive
comparative example
cfrp
producing
Prior art date
Application number
PCT/JP2007/052360
Other languages
English (en)
French (fr)
Inventor
Kazuyuki Oguri
Original Assignee
Mitsubishi Heavy Industries, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries, Ltd. filed Critical Mitsubishi Heavy Industries, Ltd.
Priority to BRPI0708780-2A priority Critical patent/BRPI0708780B1/pt
Priority to CA2644175A priority patent/CA2644175C/en
Priority to US12/224,668 priority patent/US20090107629A1/en
Priority to EP07708296.4A priority patent/EP1995032B1/en
Publication of WO2007108248A1 publication Critical patent/WO2007108248A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/06—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C2059/027—Grinding; Polishing
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/82—Testing the joint
    • B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
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    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
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    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
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    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
    • B29K2277/10—Aromatic polyamides [Polyaramides] or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2307/00—Use of elements other than metals as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2307/00—Use of elements other than metals as reinforcement
    • B29K2307/02—Boron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/02—Ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/02—Ceramics
    • B29K2309/04—Carbides; Nitrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass

Definitions

  • the present invention relates to a pretreatment method for bonding or coating a molded article containing a resin, an adhesive article and a manufacturing method thereof, and a coated article and a manufacturing method thereof.
  • a composite material containing a resin, such as fiber reinforced plastic, is widely used as a structural member for aircraft, automobiles, ships, and the like because it is lightweight and has high strength.
  • a member made of a composite material is used by being bonded to another member or being coated on the surface as necessary (for example, see Patent Document 1).
  • a pretreatment is performed on the adherend surface or the painted surface of the member.
  • methods such as sanding and grit blasting are widely used.
  • a peel ply method is also employed as a pre-bonding treatment.
  • Sanding is a method of polishing the surface of a member with a polishing medium such as sandpaper.
  • Grit blasting is a method in which grains having a sharp ridge angle called grit are sprayed onto the surface of a member with compressed air or the like.
  • the peel ply method is a method in which a peeling layer (peel ply) is bonded to the surface of a member and then peeled off.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2003-62873
  • the present invention has been made in view of such circumstances, and unlike conventional bonding methods such as sanding grit blasting and pretreatment methods, damages to the surface of a molded body containing rosin.
  • Pre-treatment method for molded bodies that can be roughened on the surface without damaging, especially when the molded body is a composite material, and only the surface of the surface resin layer can be finely roughened without damaging the fiber.
  • the purpose is to provide.
  • Another object of the present invention is to provide an adhesive article, a method for producing the same, a coated article, and a method for producing the same, which have excellent adhesion to an object to be bonded or a coating film.
  • the pretreatment method for a molded body of the present invention projects particles having an average particle diameter of 200 m or less onto at least a part of the surface of the molded body containing the resin. Process.
  • the surface is finely roughened without damaging the surface of the molded body containing the resin, and particularly when the molded body is a composite material, the fiber is not damaged. Only the surface of the surface of the resin layer can be finely roughened.
  • the method for producing an adhesive article of the present invention includes a step of applying an adhesive to the surface of the molded body that has been subjected to the pretreatment method. Moreover, the adhesive article of the present invention is formed by bonding an object to be bonded to the surface to which the adhesive is applied by this manufacturing method. This adhesive article has excellent adhesion between the molded body and the object to be bonded.
  • the method for producing a coated article of the present invention includes a step of applying a paint to the surface of the molded body subjected to the pretreatment method. Moreover, the coated article of the present invention is formed by forming a coating film obtained by curing the coating material on the surface of the molded body by this manufacturing method. This coated article has excellent adhesion to a molded body and a coating film, and the coated skin is also good.
  • the surface of the molded body containing rosin is roughened without damaging the surface, and in particular, when the molded body is a composite material, Only the surface of the surface resin layer can be finely roughened without being damaged.
  • the molded body that has been subjected to the pretreatment method has an adhesive or coating material that is firmly bonded to the finely roughened surface, and is bonded or coated when firmly bonded. Adhesion with coating film Becomes better.
  • the pretreatment method for a molded body of the present invention the contaminated layer on the surface can be uniformly removed.
  • FIG. 1 is a schematic diagram of a double-cantilever beam method.
  • FIG. 2 is a schematic view of a compression interlayer shear test.
  • FIG. 3 is a cross-sectional optical micrograph of untreated CFRP.
  • FIG. 4 is a cross-sectional optical micrograph of CFRP similar to the specimen used in Example 2 and Example 4.
  • FIG. 5 is an SEM photograph of a projection material used in shot blasting in Example 2 and Example 4.
  • FIG. 6 SEM photograph of CFRP surface shot blasted using the projection material of Fig. 5.
  • FIG. 7 is an SEM photograph of a projection material used in shot blasting in Example 1 and Example 3.
  • FIG. 8 SEM photograph of CFRP surface shot blasted using the projection material of Fig. 7.
  • FIG. 9 is an SEM photograph of a projection material used in shot blasting in Comparative Example 2.
  • FIG. 10 is an SEM photograph of the CFRP surface shot blasted using the projection material in FIG.
  • FIG. 11 is an SEM photograph of the sanded CFRP surface of Comparative Example 4 and Comparative Example 6.
  • FIG. 13 is a diagram showing the measurement results of the surface roughness of CFRP shot blasted by the methods of Example 1 and Example 3.
  • FIG. 14 is a diagram showing the measurement results of the surface roughness of CFRP shot blasted by the methods of Example 2 and Example 4.
  • FIG. 15 is a diagram showing the measurement results of the surface roughness of untreated CFRP.
  • thermosetting resin such as unsaturated polyester or epoxy resin.
  • Fiber Reinforced Plastic (FRP) Fiber Reinforced Plastic
  • thermoplastic reinforced plastics that are blended with thermoplastic resins such as polycarbonate resin, methallyl resin, polyvinyl chloride resin, polyamide resin, or ABS resin ( FRTP) and other composite materials made from a resin are preferably used.
  • FRP Fiber Reinforced Plastic
  • thermoplastic resins such as polycarbonate resin, methallyl resin, polyvinyl chloride resin, polyamide resin, or ABS resin ( FRTP) and other composite materials made from a resin are preferably used.
  • the present invention is not limited to this, and a material that has only the power of a resin can be treated by the pretreatment method of the present invention.
  • Examples of the particles (projection material) used in the pretreatment method of the present invention include hard particles such as metals, ceramics, and glass. Among them, alumina, silica, silicon carbide, zirca particles, and the like. Ceramic particles can be suitably used.
  • the shape of the particle used in the present invention is not particularly limited, and a substantially spherical particle may be used, or a particle having a sharp ridge angle such as the above-mentioned alumina or carbide particle may be used. .
  • the average particle diameter of the projection material is 200 ⁇ m or less, and 10 ⁇ m or more and 100 ⁇ m or less is particularly preferable. If the average particle size of the projection material is larger than 200 m, the surface of the molded body will be damaged due to excessive kinetic energy of the projection material particles, especially if the molded body is the aforementioned composite material, the internal fibers will be damaged. This is not preferable. If the average particle size of the projection material is less than 10 m, it is difficult to obtain a stable injection state.
  • the pre-treatment method for a molded body of the present invention is performed by projecting the projecting material particles onto at least a part of the surface of the molded body containing a resin.
  • the process of forming a rough surface by projecting particles onto the surface of a processing object is also referred to as “shot blasting”.
  • the injection speed at the time of shot blasting is defined by, for example, the injection pressure of compressed air.
  • the injection pressure during shot blasting is preferably 0.3 IMpa or more and IMPa or less, more preferably 0.3 MPa or more and 0.6 MPa or less.
  • the injection pressure is larger than IMPa, the excessively kinetic energy of the projectile particles will damage the surface of the molded body, especially if the molded body is the above-mentioned composite material, it will damage the internal fibers, which is not preferable. . If the injection pressure is less than 0. IMPa, it becomes difficult to obtain a stable injection state.
  • the coverage of shot blasting is preferably 100% or more and 1000% or less, more preferably 100% or more and 500% or less. If coverage is less than 100%, The surface of the shape is sufficiently roughened. Z is not activated, and the effect of improving the adhesion between the treated surface of the molded body and the object to be bonded or the coating film cannot be obtained. Also, if the coverage exceeds 1000%, the surface of the shaped body will be damaged! In particular, when the molded body is the above-described composite material, the internal fibers are damaged, which is not preferable.
  • the arithmetic average surface roughness Ra of the treated surface of the molded body that has been pretreated under the above conditions is preferably 0.3 ⁇ m or more and 2 ⁇ m or less. If the surface roughness of the surface to be processed is less than 0.3 ⁇ m, the surface of the molded body will not be sufficiently roughened / activated, and the adhesion between the surface to be processed of the molded body and the bonding object or coating film will be poor. This is not preferable because the effect of improving the above cannot be obtained. Further, if the surface roughness of the surface to be treated is larger than 2 m, the above-mentioned composite material is not preferable because it damages internal fibers.
  • an adhesive is applied to the surface to be processed of the molded body that has been subjected to the pretreatment.
  • the adhesive is not particularly limited as long as it is an adhesive generally used for adhering resin, and examples thereof include an epoxy adhesive, a synthetic rubber adhesive, a cyanoacrylate adhesive, an acrylic adhesive, Hot melt or the like can be used.
  • an adhesive may be applied after a surface treatment agent (primer) having affinity for both the resin and the adhesive forming the molded body is applied to the surface to be processed of the molded body.
  • the adhesive article of the present invention is formed by applying the adhesive to a surface to be processed of a molded body and then bonding an object to be bonded to the coated surface.
  • the object to be bonded is also a molded body containing a resin, it is preferable that the pretreatment method of the present invention is applied to the surface to be bonded of the object to be bonded in the same manner as described above.
  • a paint is applied to the treated surface of the molded body that has been subjected to the above pretreatment.
  • the paint is not particularly limited as long as it is a paint generally used for resin coating.
  • acrylic paint, urethane paint, alkyd paint, epoxy paint, and the like can be used.
  • a coating agent may be applied after applying a base treatment agent (primer) having affinity for both the resin and the paint forming the molded body to the treated surface of the molded body.
  • a base treatment agent primary
  • the coated article of the present invention after the coating material is applied to the surface to be processed of the molded body, A cured coating is formed.
  • CFRP carbon fiber reinforced plastic
  • Table 1 shows the average toughness values obtained.
  • Projection material Spherical ceramic particles (alumina, silica),
  • CFRP carbon fiber reinforced plastic
  • FIG. 2 is a schematic diagram of this compression interlayer shear test. A similar test was conducted five times. The obtained shear strength values are shown in Table 2.
  • CFRP pieces (dimensions 200mm x 100mm x 4.5mm) were used as specimens without any surface pretreatment.
  • a primer for coating composites on one side of the specimen, sticking the adhesive tape to the coated surface by the cross-cut method, peeling off, and measuring the area percentage of the coating film peeled off with the adhesive tape, The coating film adhesion was evaluated.
  • Table 3 shows the results of the coating adhesion evaluation test.
  • a primer similar to that used in Comparative Example 5 was spray-coated on the surface of the specimen to be sanded, and a coating adhesion test was conducted in the same manner as in Comparative Example 5.
  • Table 3 shows the results of the coating adhesion evaluation test.
  • Projection material Spherical ceramic particles (alumina, silica),
  • Comparative Example 5 The same primer used in Comparative Example 5 was spray-coated on the shot blast treated surface of the specimen, and a coating adhesion test was conducted in the same manner as Comparative Example 5.
  • Table 3 shows the results of the coating adhesion evaluation test.
  • Table 3 shows the results of the coating adhesion evaluation test.
  • Figures 3 and 4 show cross-sectional optical micrographs of CFRP, respectively.
  • FIGS. Shown in 6 Scanning electron microscope (SEM) photographs of the amorphous carbon carbide particles # 400 used in the shot blasting of Example 2 and Example 4 and the CFRP surface shot blasted using the same are shown in FIGS. Shown in 6.
  • Figure 6 shows that although the CFRP surface is roughened, the fiber is not damaged.
  • FIGS. 7 and 8 show SEM photographs of the ceramic spherical particles # 400 used in the shot blasting in Example 1 and Example 3 and the CFRP surface shot-blasted using the ceramic spherical particles # 400, respectively.
  • Figure 8 shows that the CFRP surface is rough, but the fibers are not damaged. I understand.
  • FIGS. 9 and 10 show SEM photographs of the amorphous alumina particle # 230 used in the shot blasting of Comparative Example 2 and the CFRP surface treated with the yacht blasting, respectively.
  • Figure 10 shows that the fibers inside the CFRP are exposed and damaged.
  • FIG. 11 shows SEM photographs of the CFRP surface sanded by the method of Comparative Example 4 and Comparative Example 6 using # 400 carbide sandpaper. Figure 11 shows that the fibers inside the CFRP are exposed and damaged.
  • Figure 12 shows a surface SEM photograph of CFRP after surface treatment!
  • FIG. 13 shows the measurement results of the surface roughness of CFRP shot blasted using ceramic spherical particles # 400 by the methods of Example 1 and Example 3.
  • FIG. 14 shows the measurement results of the surface roughness of CFRP shot blasted using the carbon carbide amorphous particles # 400 by the methods of Example 2 and Example 4.
  • Fig. 15 shows the measurement results of the surface roughness of untreated CFRP. Although the surface is roughened by shot blasting with amorphous carbon carbide particle # 400, the surface roughness is several / zm even though the shot blasting process is misaligned. It can be seen that it is possible to roughen only the surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

　樹脂を含有する成形体表面を損傷せずに表面を微細に粗面化する。樹脂を含む成形体の表面の少なくとも一部の面に、平均粒径が２００μｍ以下の粒子を投射する。

Description

明 細 書
成形体の前処理方法、接着物品及びその製造方法、並びに塗装物品及 びその製造方法
技術分野
[0001] 本発明は、榭脂を含む成形体の接着又は塗装のための前処理方法、接着物品及 びその製造方法、並びに塗装物品及びその製造方法に関するものである。
背景技術
[0002] 繊維強化プラスチック等の榭脂を含む複合材は、軽量で高強度であるため、航空 機、自動車、船舶等の構造部材として広く用いられている。このような複合材カ なる 部材は、必要に応じて、他の部材と接着されたり、表面に塗装が施されたりして、用 いられる (例えば、特許文献 1参照)。この際、接着を強固なものとするために、あるい は塗装により形成された塗膜の密着性を高めるために、部材の被接着面又は被塗装 面に前処理が行われる。このような接着前処理又は塗装前処理としては、サンディン グ、グリットブラスト等の方法が広く採用されている。また、接着前処理としては、ピー ルプライ法も採用されて 、る。
[0003] 上記前処理はいずれも、部材の被接着面又は被塗装面を粗面化するとともに，新 生面により表面の活性ィ匕を図るために行われる。サンデイングは、サンドペーパー等 の研磨媒体によって、部材表面を研磨する方法である。グリットブラストは、グリットと 呼ばれる尖鋭な稜角をもつ粒を、圧縮空気等によって部材表面に吹き付ける方法で ある。ピールプライ法は、部材表面に剥離層（ピールプライ）を接着した後に、これを 剥離する方法である。
[0004] 特許文献 1 :特開 2003— 62873号公報
発明の開示
[0005] サンディングゃグリットブラストによる前処理を行うと、複合材表面の榭脂層を除去し てしまい、内部の繊維を損傷させることが避けられない。その結果、接着又は塗装の 際の接着対象物又は塗膜との密着性が低下してしまうとともに，複合材の強度が低 下する恐れもある。また、塗装前処理の場合には、表面が荒れ、塗装肌が悪くなる問 題も生じている。一方、ピールプライ法は、剥離面の残渣の問題があるとともに、付帯 作業量が多ぐ廃棄物が発生する問題もある。
[0006] 本発明は、このような事情に鑑みてなされたものであって、従来のサンディングゃグ リットブラスト等による接着及び塗装前処理方法と異なり、榭脂を含有する成形体表 面を損傷せずに表面を微細に粗面化し、とりわけ成形体が複合材である場合には繊 維を損傷させずに表層の榭脂層表面のみを微細に粗面化できる成形体の前処理方 法を提供することを目的とする。また本発明は、接着対象物又は塗膜との密着性が 優れた、接着物品及びその製造方法並びに塗装物品及びその製造方法を提供する ことを目的とする。
[0007] 上記課題を解決するために、本発明の成形体の前処理方法は、榭脂を含む成形 体の表面の少なくとも一部の面に、平均粒径が 200 m以下の粒子を投射する工程 を有している。
この成形体の前処理方法によれば、榭脂を含有する成形体表面を損傷せずに表 面を微細に粗面化し、とりわけ成形体が複合材である場合には繊維を損傷させずに 表層の榭脂層表面のみを微細に粗面化することができる。
[0008] 本発明の接着物品の製造方法は、前記前処理方法を施した前記成形体の前記面 に接着剤を塗布する工程を有している。また、本発明の接着物品は、この製造方法 により前記接着剤が塗布された前記面に、接着対象物が接着されてなるものである。 この接着物品は、成形体と接着対象物との密着性が優れている。
[0009] 本発明の塗装物品の製造方法は、前記前処理方法を施した前記成形体の前記面 に塗料を塗布する工程を有している。又、本発明の塗装物品は、この製造方法により 、前記成形体の前記面上に前記塗料が硬化した塗膜が形成されてなるものである。 この塗装物品は、成形体ど塗膜との密着性が優れ、塗装肌も良好である。
[0010] 本発明の成形体の前処理方法によれば、榭脂を含有する成形体表面を損傷せず に表面を微細に粗面化し、とりわけ成形体が複合材である場合には繊維を損傷させ ずに表層の榭脂層表面のみを微細に粗面化することができる。また、前記前処理方 法を施した成形体は、その微細に粗面化された表面に接着剤や塗料が強固に機械 的結合をすることにより、接着又は塗装した際に、接着対象物又は塗膜との密着性 が良好となる。また、本発明の成形体の前処理方法によれば、表面の汚染層を均一 に除去することも出来る。
図面の簡単な説明
[0011] [図 1]ダブル 'カンチレバ一.ビーム法の概略図である。
[図 2]圧縮層間剪断試験の概略図である。
[図 3]無処理の CFRPの断面光学顕微鏡写真である。
[図 4]実施例 2及び実施例 4で用いた供試体と同様の CFRPの断面光学顕微鏡写真 である。
[図 5]実施例 2及び実施例 4のショットブラストで用いた投射材の SEM写真である。
[図 6]図 5の投射材を用いてショットブラスト処理された CFRP表面の SEM写真である
[図 7]実施例 1及び実施例 3のショットブラストで用いた投射材の SEM写真である。
[図 8]図 7の投射材を用いてショットブラスト処理された CFRP表面の SEM写真である
[図 9]比較例 2のショットブラストで用いた投射材の SEM写真である。
[図 10]図 9の投射材を用いてショットブラスト処理された CFRP表面の SEM写真であ る。
[図 11]比較例 4及び比較例 6のサンディング処理された CFRP表面の SEM写真であ る。
[図 12]無処理の CFRPの表面 SEM写真である。
[図 13]実施例 1及び実施例 3の方法によりショットブラスト処理された CFRPの表面粗 さの測定結果を示す図である。
[図 14]実施例 2及び実施例 4の方法によりショットブラスト処理された CFRPの表面粗 さの測定結果を示す図である。
[図 15]無処理の CFRPの表面粗さの測定結果を示す図である。
発明を実施するための最良の形態
[0012] 以下に、本発明にかかる実施形態について、図面を参照して説明する。
[0013] 本発明の前処理方法で処理対象となる榭脂成形体としては、ガラス繊維、炭素繊 維、炭化ケィ素繊維、アルミナ繊維又はボロン繊維等の無機繊維やナイロン繊維、ビ 二ロン繊維、又はァラミド繊維等の有機繊維を不飽和ポリエステル又はエポキシ榭脂 等の熱硬化性榭脂に配合させた繊維強化プラスチック (FRP)や、前記各繊維をポリ カーボネート榭脂、メタタリル榭脂、ポリ塩化ビニル榭脂、ポリアミド榭脂、又は ABS榭 脂等の熱可塑性榭脂に配合した熱可塑性強化プラスチック (FRTP)等の、榭脂をマ トリックスとした複合材料が好適に採用される。ただし、本発明はこれに限定されず、 榭脂のみ力もなる材料も本発明の前処理方法で処理対象となり得る。
[0014] 本発明の前処理方法において用いられる粒子 (投射材）としては、金属、セラミック ス、ガラス等の硬質粒子が挙げられ、なかでもアルミナ、シリカ、炭化ケィ素、ジルコ- ァ粒子等のセラミックス粒子を好適に用いることができる。本発明にお 、て用いられる 粒子の形状は特に限定されず、略球形の粒子を用いてもよいし、また前記アルミナ、 炭化ケィ素粒子等の尖鋭な稜角を有する粒子を用いてもょ 、。
[0015] この投射材の平均粒径は 200 μ m以下であり、 10 μ m以上 100 μ m以下が特に好 ましい。投射材の平均粒径が 200 mより大きいと、投射材粒子の過大な運動エネ ルギ一により成形体表面を損傷してしまい、特に成形体が前述の複合材料の場合は 内部の繊維を損傷してしまうので、好ましくない。また、投射材の平均粒径が 10 m より小さいと、安定した噴射状態を得ることが困難となる。
[0016] 前記投射材粒子を、榭脂を含む成形体の表面の少なくとも一部の面に投射するこ とにより、本発明の成形体の前処理方法が行われる。粒子を処理対象物の表面に投 射して粗面を形成する処理を一般に「ショットブラスト」ともいう。ショットブラストの際の 噴射速度は、例えば圧縮空気の噴射圧力により規定される。本発明において、ショッ トブラストの際の噴射圧力は 0. IMPa以上 IMPa以下が好ましぐ 0. 3MPa以上 0. 6MPa以下がより好ましい。噴射圧力が IMPaより大きいと、投射材粒子の過大な運 動エネルギーにより成形体表面を損傷してしまい、特に成形体が前述の複合材料の 場合は内部の繊維を損傷してしまうので、好ましくない。また、噴射圧力が 0. IMPa より小さいと安定した噴射状態を得ることが困難となる。
[0017] 本発明において、ショットブラストのカバレージは、好ましくは 100%以上 1000%以 下、より好ましくは 100%以上 500%以下である。カバレージが 100%未満では、成 形体表面が十分に粗面化 z活性化されず、成形体の被処理面と接着対象物又は塗 膜との密着性の向上効果が得られない。また、カバレージが 1000%を超えると、成 形体表面を損傷してしま！ヽ、特に成形体が前述の複合材料の場合は内部の繊維を 損傷してしまうので、好ましくない。
[0018] 上記の条件で前処理を行った成形体の被処理面の算術平均表面粗さ Raは、 0. 3 μ m以上 2 μ m以下となることが好ましい。被処理面の表面粗さが 0. 3 μ mより小さい と、成形体表面が十分に粗面化/活性化されず，成形体の被処理面と接着対象物又 は塗膜との密着性の向上効果が得られないので好ましくない。また、被処理面の表 面粗さが 2 mより大きいと、前述の複合材料の場合は内部の繊維を損傷してしまう ので好ましくない。
[0019] 本発明の接着物品の製造方法においては、上記の前処理を行った成形体の被処 理面に接着剤が塗布される。
接着剤としては、一般に榭脂の接着に用いられる接着剤であれば特に限定されず 、例えば、エポキシ系接着剤、合成ゴム系接着剤、シァノアクリレート系接着剤、ァク リル系接着剤、ホットメルト等を用いることができる。また、成形体を形成する榭脂及び 接着剤の両方と親和性を有する下地処理剤 (プライマー）を成形体の被処理面に塗 布してから、接着剤を塗布してもよい。
本発明の接着物品は、前記接着剤を成形体の被処理面に塗布した後に、その塗 布面に接着対象物が接着されて形成される。接着対象物も榭脂を含む成形体である 場合には、この接着対象物の被接着面にも、上記と同様に本発明の前処理方法が 施されることが好ましい。
[0020] 本発明の塗装物品の製造方法においては、上記の前処理を行った成形体の被処 理面に塗料が塗布される。
塗料としては、一般に榭脂の塗装に用いられる塗料であれば特に限定されず、例 えば、アクリル系塗料、ウレタン系塗料、アルキド系塗料、エポキシ系塗料等を用いる ことができる。また、成形体を形成する榭脂及び塗料の両方と親和性を有する下地処 理剤（プライマー）を成形体の被処理面に塗布してから、塗料を塗布してもよ ヽ。 本発明の塗装物品は、前記塗料を成形体の被処理面に塗布した後に、この塗料が 硬化した塗膜となって、形成される。
[0021] 次に、実施例および比較例を用いて、本発明による成形体の前処理方法、接着物 品及びその製造方法、並びに塗装物品及びその製造方法についてさらに詳述する
[0022] [接着性評価試験 1 (層間破壊靱性試験) ]
(比較例 1)
2枚の短冊状の炭素繊維強化プラスチック（CFRP)片（寸法 350mm X 25mm X 4 . 5mm)を、表面の前処理を行わずに供試体として用いた。各供試体の片面の端部 力も約 300mmの位置までエポキシ系接着剤を塗布し、接着剤を塗布した側の接着 剤塗布面同士を向かい合わせて、塗布面同士を接着した。
接着剤が硬化した後に、ダブル'カンチレバー'ビーム (DCB)法により層間破壊靱 性試験を行った。すなわち、各供試体において、接着部分と反対側のそれぞれの端 部に、接着面と略垂直方向の互いに離間する向きに荷重を与え、硬化した接着剤層 において層間剥離が起こったときの靱性値を測定した。図 1は、 DCB法の概略図で ある。
同様の試験を計 5回行った。得られた靱性値の平均値を表 1に示す。
[0023] (比較例 2)
比較例 1と同様の 2枚の CFRP片のそれぞれにおいて、片面に以下の条件でショッ トブラストを行ったものを供試体とした。
投射材： アルミナ不定形粒子、 # 230
噴射圧力： 0. 3MPa
カバレージ： 100%
各供試体のショットブラスト被処理面の端部力 約 300mmの位置まで、比較例 1で 用いたものと同様のエポキシ系接着剤を塗布し、比較例 1と同様に塗布面同士を接 着した。比較例 1と同様に DCB法により層間破壊靱性試験を行い、靱性値を測定し た。同様の試験を計 5回行った。得られた靱性値の平均値を表 1に示す。
[0024] (実施例 1)
比較例 1と同様の 2枚の CFRP片のそれぞれにおいて、片面に以下の条件でショッ トブラストを行ったものを供試体とした。
投射材： セラミックス球形粒子 (アルミナ、シリカ）、
# 400 (平均粒径 50 μ m以下）
噴射圧力： 0. 5MPa
カバレージ： 100%
各供試体のショットブラスト被処理面の端部力 約 300mmの位置まで、比較例 1で 用いたものと同様のエポキシ系接着剤を塗布し、比較例 1と同様に塗布面同士を接 着した。比較例 1と同様に DCB法により層間破壊靱性試験を行い、靱性値を測定し た。同様の試験を計 5回行った。得られた靱性値の平均値を表 1に示す。
[0025] [表 1]
Figure imgf000009_0001
[0026] 上記層間破壊靱性試験においては、靱性値の値が大きいほど密着性が供試体同 士の密着性が高 ヽことを表す。本発明によるショットブラストを行った供試体 (実施例 1)は密着性が優れていることが分かる。
[0027] [接着性評価試験 2 (圧縮層間剪断試験) ]
(比較例 3)
2枚の短冊状の炭素繊維強化プラスチック（CFRP)片（寸法 80mm X 15mm X 4. 5mm)を、表面の前処理を行わずに供試体として用いた。各供試体の片面全面にェ ポキシ系接着剤を塗布し、接着剤を塗布した側の接着剤塗布面同士を向力ゝ ヽ合わ せて、塗布面同士を接着した。接着剤が硬化した後に，図 2に示すように，供試体の 両側カゝら接着面まで切り欠きを設けた。
図 2に示す圧縮荷重を与え、切り欠き部において層間剥離が起こったときの剪断強 度値を測定した。図 2は、この圧縮層間剪断試験の概略図である。同様の試験を計 5 回行った。得られた剪断強度値を表 2に示す。
[0028] (比較例 4)
比較例 3と同様の 2枚の CFRP片のそれぞれにお 、て、片面を # 400の炭化ケィ素 サンドペーパーを用いて水が弾かなくなるまで研磨したものを供試体とした。
比較例 3で用いたものと同様のエポキシ系接着剤を塗布し、比較例 3と同様に塗布 面同士を接着した。比較例 3と同様に圧縮層間剪断試験を行い、剪断強度値を測定 した。得られた剪断強度値を表 2に示す。
[0029] (実施例 2)
比較例 3と同様の 2枚の CFRP片のそれぞれにおいて、片面に以下の条件でショッ トブラストを行ったものを供試体とした。
投射材： 炭化ケィ素不定形粒子、 # 400
噴射圧力： 0. 5MPa
カバレージ： 100%
比較例 3で用いたものと同様のエポキシ系接着剤を塗布し、比較例 3と同様に塗布 面同士を接着した。比較例 3と同様に圧縮層間剪断試験を行い、剪断強度値を測定 した。得られた剪断強度値を表 2に示す。
[0030] [表 2]
Figure imgf000010_0001
[0031] 上記圧縮層間剪断試験にぉ 、ても、本発明によるショットブラストを行った供試体 ( 実施例 2)は密着性が優れていることが分かる。
[0032] [塗膜密着性評価試験] (比較例 5)
CFRP片（寸法 200mm X 100mm X 4. 5mm)を、表面の前処理を行わずに供 試体として用いた。供試体の片面に複合材塗装用のプライマーをスプレー塗装し、ク ロスカット法により塗装面に粘着テープを貼付後、剥離して、粘着テープと共に剥離 された塗膜の面積百分率を測定することにより、塗膜密着性を評価した。
塗膜密着性評価試験の結果を表 3に示す。
[0033] (比較例 6)
比較例 5と同様の CFRP片の片面を、 # 400の炭化ケィ素サンドペーパーを用いて 水が弾力なくなるまで研磨したものを、供試体とした。
供試体のサンディング被処理面に比較例 5で用いたものと同様のプライマーをスプ レー塗装し、比較例 5と同様に塗膜密着性試験を行った。
塗膜密着性評価試験の結果を表 3に示す。
[0034] (実施例 3)
比較例 5と同様の CFRP片の片面に以下の条件でショットブラストを行ったものを供 試体とした。
投射材： セラミックス球形粒子 (アルミナ、シリカ）、
# 400 (平気粒径 50 μ m以下）
噴射圧力： 0. 5MPa
カバレージ： 100%
供試体のショットブラスト被処理面に比較例 5で用いたものと同様のプライマーをス プレー塗装し、比較例 5と同様に塗膜密着性試験を行った。
塗膜密着性評価試験の結果を表 3に示す。
[0035] (実施例 4)
比較例 5と同様の CFRP片の片面に以下の条件でショットブラストを行ったものを供 試体とした。
投射材： 炭化ケィ素不定形粒子、 # 400
噴射圧力： 0. 5MPa
カバレージ： 100% 供試体のショットブラスト被処理面に比較例 5で用いたものと同様のプライマ プレー塗装し、比較例 5と同様に塗膜密着性試験を行った。
塗膜密着性評価試験の結果を表 3に示す。
[表 3]
Figure imgf000012_0001
[0037] 上記塗膜密着性評価試験にお!ヽては、本発明によるショットブラストを行った供試 体 (実施例 3及び 4)は塗膜密着性が優れて!/、ることが分かる。
[0038] [断面光学顕微鏡観察結果]
比較例 1、比較例 3及び比較例 5で用いた供試体 (接着前）と同様の無処理の CFR
P並びに実施例 2及び実施例 4で用いた供試体 (ショットブラスト後、接着前）と同様の
CFRPの断面光学顕微鏡写真を、それぞれ図 3及び図 4に示す。
図 3及び図 4より、本発明によるショットブラスト後は CFRPの表面が粗面化されてい ることが分かるが、あくまでも表層の榭脂層の表面のみが荒れており、繊維に損傷が ないことが分かる。
[0039] [表面 SEM観察結果]
実施例 2及び実施例 4のショットブラストで用いた炭化ケィ素不定形粒子 # 400及 びこれを用いてショットブラスト処理された CFRP表面の走査電子顕微鏡 (SEM)写 真を、それぞれ図 5及び図 6に示す。図 6より、 CFRPの表面は粗面化されているもの の、繊維に損傷がないことが分力る。
[0040] 実施例 1及び実施例 3のショットブラストで用いたセラミックス球形粒子 # 400及びこ れを用いてショットブラスト処理された CFRP表面の SEM写真を、それぞれ図 7及び 図 8に示す。図 8より、 CFRPの表面は粗面化されているものの、繊維に損傷がないこ とが分かる。
[0041] 比較例 2のショットブラストで用いたアルミナ不定形粒子 # 230及びこれを用いてシ ヨットブラスト処理された CFRP表面の SEM写真を、それぞれ図 9及び図 10に示す。 図 10より、 CFRP内部の繊維が露出し、損傷していることが分かる。
[0042] 比較例 4及び比較例 6の方法により、 # 400の炭化ケィ素サンドペーパーを用いて サンディング処理された CFRP表面の SEM写真を、図 11に示す。図 11より、 CFRP 内部の繊維が露出し、損傷していることが分かる。
図 5から図 11より、ショットブラスト処理された CFRP表面の形態は、粒子の大きさや 形状に対応して ヽることが分かる。
図 12に、表面処理を行って!/、な 、CFRPの表面 SEM写真を示す。
[0043] [表面粗さ測定結果]
実施例 1及び実施例 3の方法により、セラミックス球形粒子 # 400を用いてショットブ ラスト処理された CFRPの表面粗さの測定結果を図 13に示す。また、実施例 2及び 実施例 4の方法により、炭化ケィ素不定形粒子 # 400を用いてショットブラスト処理さ れた CFRPの表面粗さの測定結果を図 14に示す。さらに、無処理の CFRPの表面 粗さの測定結果を図 15に示す。炭化ケィ素不定形粒子 # 400でショットブラスト処理 した方が表面が荒れて 、るものの、 、ずれのショットブラスト処理にぉ 、ても表面粗さ は数/ z mのレベルであり、表層榭脂層の表面のみの粗面化が可能であることが分か る。

Claims

請求の範囲
[1] 榭脂を含む成形体の表面の少なくとも一部の面に、平均粒径が 200 μ m以下の粒 子を投射する工程を有する、成形体の前処理方法。
[2] 請求項 1に記載の前処理方法を施した前記成形体の前記面に接着剤を塗布する 工程を有する、接着物品の製造方法。
[3] 請求項 1に記載の前処理方法を施した前記成形体の前記面に塗料を塗布するェ 程を有する、塗装物品の製造方法。
[4] 請求項 2に記載の製造方法により前記接着剤が塗布された前記面に、接着対象物 が接着されてなる、接着物品。
[5] 請求項 3に記載の製造方法により、前記成形体の前記面上に前記塗料が硬化した 塗膜が形成されてなる、塗装物品。
PCT/JP2007/052360 2006-03-15 2007-02-09 成形体の前処理方法、接着物品及びその製造方法、並びに塗装物品及びその製造方法 WO2007108248A1 (ja)

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CA2644175A1 (en) 2007-09-27
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