WO2017043089A1 - ガラス繊維強化プラスチック製の表面加工用線材 - Google Patents

ガラス繊維強化プラスチック製の表面加工用線材 Download PDF

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Publication number
WO2017043089A1
WO2017043089A1 PCT/JP2016/004118 JP2016004118W WO2017043089A1 WO 2017043089 A1 WO2017043089 A1 WO 2017043089A1 JP 2016004118 W JP2016004118 W JP 2016004118W WO 2017043089 A1 WO2017043089 A1 WO 2017043089A1
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Prior art keywords
wire
glass fiber
brush
wire material
resin
Prior art date
Application number
PCT/JP2016/004118
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
歳博 伊原
幸典 山本
Original Assignee
株式会社イハラ合成
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Filing date
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Application filed by 株式会社イハラ合成 filed Critical 株式会社イハラ合成
Priority to JP2017538874A priority Critical patent/JP6294576B2/ja
Priority to KR1020177032888A priority patent/KR20170137187A/ko
Priority to CN201680026605.5A priority patent/CN107614201A/zh
Publication of WO2017043089A1 publication Critical patent/WO2017043089A1/ja

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B29B9/14—Making granules characterised by structure or composition fibre-reinforced
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers

Definitions

  • the glass fiber used for surface processing such as polishing of the surface of a special steel plate such as a stainless steel plate or deburring generated on the inner wall surface of a hollow columnar metal member has a wire rod long axis.
  • the present invention relates to a wire for surface processing made of glass fiber reinforced plastic oriented in a direction.
  • Glass fiber reinforced plastic is a composite material in which glass fiber is put into plastic to improve the strength, and is used as a light weight and high strength material as a composite material with a high elastic modulus material.
  • a product made of glass fiber reinforced plastic is provided as a bristle material for polishing brushes used for surface processing of metal steel sheets (Patent Document 1).
  • roll brushes, cup brushes, cylindrical brushes, etc. in which monofilaments made of a synthetic resin containing abrasive particles are planted as hair materials are pressed against the metal plate to be processed while rotating, and the surface of the metal plate to be processed is polished.
  • bristle materials for polishing brushes for performing the above Patent Documents 2 to 4.
  • the polishing brush bristle material is required to have excellent polishing properties.
  • nylon 6 nylon 66
  • nylon 6/66 copolymer nylon 610
  • nylon 612 nylon 612
  • Patent Document 1 discloses a brush-like grindstone that is held by a holder in which a plurality of filament abrasives obtained by impregnating a resin into an inorganic continuous fiber aggregate yarn and the outer peripheral side surface is a circumferential surface.
  • An invention of any one of alumina fiber, silicon carbide fiber, carbon fiber, silicon nitride fiber and glass fiber has been proposed.
  • Patent Document 2 discloses a polishing brush that has excellent polishing performance and excellent welding resistance in dry polishing of rolled steel and the like, with respect to 100 parts by weight of polyamide resin.
  • a bristle material for an abrasive brush characterized by comprising a monofilament obtained by melt spinning a composition containing 10 to 60 parts by weight of particles and 0.1 to 5 parts by weight of an azine compound has been proposed.
  • Patent Document 3 discloses nylon 6, nylon 66, nylon 66, nylon 66, and a polishing brush that have excellent polishing performance and particularly excellent resistance to welding in dry polishing of special steels such as stainless steel plates.
  • a composition comprising 5 to 40% by weight of abrasive abrasive particles and 3 to 25% by weight of a fluororesin with respect to a polyamide-based resin such as nylon 610, nylon 612, nylon 12 or nylon 6/66 copolymer.
  • a bristle material for an abrasive brush characterized by comprising a monofilament obtained by melt-spinning.
  • Patent Document 4 discloses a melting material of 210 to 230 with respect to a polyamide resin in order to provide a bristle material for a polishing brush that has high durability, polishing properties and welding resistance in dry polishing of special steel plates such as stainless steel plates.
  • a polishing brush comprising a monofilament containing 3 to 25% by weight of tetrafluoroethylene / ethylene copolymer at 0.1 ° C., 0.1 to 5% by weight of an azine compound, and 5 to 40% by weight of abrasive particles.
  • a bristle material for a polishing brush characterized by a bristle material, and further a minimum breakage durability time of 10 minutes or more and a polishing amount of 140 g or more.
  • Patent Document 1 relating to deburring and grinding, since it is a brush-like grindstone in which long fibers are bundled, the resin content is considerably less than the fiber content, and the product price is very expensive. There is a problem that it is not adopted in an industry that uses a large amount as a consumable, and that a recycled product cannot be used and is unsuitable for polishing.
  • Patent Documents 2 to 4 relating to polishing, the welding resistance against the welding of the hair resin to the work surface is excellent, but 5 to 40% by weight of abrasive particles are contained in the polyamide resin.
  • Hair material is consumed quickly, and in high-volume industries, there is adhesion of abrasive grains to workpieces that cause high cost. Sharp abrasive grains may damage the workpiece surface. There is a problem that may be fused.
  • the present invention is characterized in that it is a fiber reinforced plastic wire in which the long axis of the glass fiber is oriented within a small orientation angle range with respect to the long axis direction of the wire. That is, the present invention is a wire in which glass fibers are oriented in the longitudinal direction of the wire, and glass fibers having an average fiber length of 0.05 to 1.5 mm, preferably 0.1 to 0.8 mm, and a diameter of 3 to 30 ⁇ m. It contains 15 to 40% by weight, preferably 28 to 33% by weight, and plastic is 60 to 85% by weight.
  • the average value of the orientation angles of the glass fibers with respect to the longitudinal direction of the wire is 0 to 7 °, preferably 0 to 4%. °.
  • the orientation of the glass fiber is exemplified by cutting the fiber reinforced plastic, taking an image of the cut surface using an X-ray CT apparatus or the like, and calculating with an observation or calculation device.
  • a general glass fiber reinforced plastic is a bulk product in which glass fibers are randomly oriented to ensure strength.
  • glass fibers are within a specific small orientation angle range with respect to the major axis direction of the wire. It is basically different in that it is a wire rod.
  • the glass fiber may be a composite fiber of glass fiber and another fiber. You may contain the functional agent for improving the softness
  • plastic examples include polyamide-based resins, polyester-based resins (for example, polybutylene terephthalate (PBT)), and polyfluoroethylene-based resins.
  • PBT polybutylene terephthalate
  • the fiber reinforced plastic may be new or recycled.
  • the material examples include PA6GF and PA66GF.
  • the polyamide-based resin is preferably at least one selected from nylon 6, nylon 610, and nylon 612.
  • “Surface processing” as used herein includes polishing, grinding, deburring, surface finishing, and the like.
  • the average fiber length is less than 0.05 mm, the difficulty of melt extrusion and wire forming is reduced, but the waist strength of the wire is reduced, so that it is easy to cause work surface finish failure. Problems such as increasing the difficulty of conversion and increasing the breakage of the glass fiber are likely to occur.
  • Wires with glass fibers less than 20% by weight tend to cause resin fusion due to frictional heat with the workpiece surface.
  • the glass fiber content exceeds 40% by weight, the screw of the melt-kneading extruder is damaged and the extrusion pressure increases.
  • the toughness of the resulting wire material is likely to be broken, which may hinder the secondary processing of brushes.
  • a glass fiber reinforced plastic in which a polyamide resin, a polyester resin, or a polyfluoroethylene resin is filled with glass fiber and reinforced is crushed and melted at 200 to 270 ° C. at full flight.
  • a pellet molding process in which the wire rod is extruded into a melt extruder having a mold screw and extruded to cut into pellets, and the pellet is charged into a melt extruder and melted at a temperature of 200 to 280 ° C. 200r. p. glass fiber containing 15 to 40% by weight glass fiber and 60 to 85% by weight glass fiber having an average fiber length of 0.05 to 1.5 mm and a diameter of 3 to 30 ⁇ m by melting and extruding the wire at m.
  • a method for producing a glass fiber reinforced plastic wire characterized by comprising a melt extrusion step of extruding a reinforced plastic wire and a step of cooling and solidifying the melt extruded wire.
  • the melting temperature of 200 to 270 ° C. and the temperature of 200 to 280 ° C. are preferably within this range, but the melting is not limited to 200 to 280 ° C. This is because the melting temperature of the resin varies depending on the type of resin. There is a case where the upper limit temperature is set to 60 ° C. from the melting point of the resin (in the case of the resin causing the melting point drop due to the additive, the melting point of the mixed resin). Further, if the temperature is too high, the resin is thermally deteriorated, which is not preferable.
  • It includes a recycling step of crushing glass fiber reinforced plastic waste products in which glass fibers are randomly oriented and recycled into recycled pellets by melt extrusion, and charging the recycled pellets into the melt extruder in the melt extrusion step preferable.
  • a resin part such as an automobile is exemplified.
  • the present invention can be used for industrial brushes (for example, cup-shaped brushes, torsion brushes, etc.) processed from the above-mentioned wire rods.
  • Industrial brushes include, for example, rust removal and polishing work for metal products, deburring of metal parts and resin parts, debris work for bridges and tanks, fine deburring and polishing work for precision parts, metal and resin processed parts Finishing, washing and cleaning work.
  • the glass fiber reinforced plastic wire of the present invention there is no adhesion of abrasive grains to the workpiece as seen in a brush using a wire containing abrasive grains, no damage to the workpiece surface due to abrasive grains, for example, no coating, no surface treatment General purpose steel materials (general processed materials SPHC, SPSS, structural materials SS materials and SM materials), or the finish of the workpiece surface such as deburring on the inner wall surface of a hollow cylindrical metal member It is fine, has no rust removal, and has a good finish.
  • the wire resin is less likely to be welded to the work surface or the wires are fused to each other, resulting in stabilization of brush performance and extended life.
  • the wire of the present invention is considered to have a high density of glass fibers and high thermal conductivity (heat dissipation). Furthermore, it is easy to use recycled material of glass fiber reinforced plastic.
  • FIG. (A) is the longitudinal cross-sectional view of the wire F of this invention
  • (b) is the same cross-sectional view
  • (c) is the longitudinal cross-sectional view of a board
  • (d) is a cross-sectional view of a board
  • FIG. 4 is an electron micrograph of the upper cut surface (b) in the same manner. It is a photograph figure of the product processed into the cylindrical brush from the wire F after processing the recycle pellet made from PA6GF30 of an Example of this invention with the helical screw melt extruder, and winding up. It is an electron microscope photograph figure of the right cut surface (c) of the crushing material (curved part) of the automobile resin part made from PA6GF30 of Comparative Example 1.
  • FIG. 6 is an electron micrograph of the upper cut surface (d) in the same manner.
  • FIG. 2 It is an electron micrograph figure of the upper cut surface (cross section of the same direction as d) cut along the long side of the recycle pellet which carried out the extrusion molding of the crushing material (curved part) of automobile resin parts made from PA6GF30. It is the electron micrograph figure of the right cut surface (secondary section of the same direction as c) similarly cut
  • FIG. 2 It is a perspective photograph figure of the twist brush of Example 2.
  • FIG. It is a perspective photograph figure which shows the location of the deburring test of the cylindrical metal member which uses the torsion brush of Example 2.
  • FIG. It is a schematic diagram of the cut surface of the brush wire with an abrasive grain of a prior art.
  • a wire F obtained by orienting glass fibers according to an embodiment of the present invention in the longitudinal direction of the wire, a manufacturing method thereof, and an industrial brush using the wire F will be described with reference to the drawings.
  • the wire F of this embodiment is a wire of PA6GF, which is a glass fiber reinforced plastic, contains 30% by weight of glass fiber G having an average fiber length of 0.6 mm, a diameter of 10 ⁇ m, and 70% by weight of plastic P.
  • the orientation angle of the glass fiber G with respect to the axial direction X is 0 to 7 °, preferably 0 to 4 °.
  • PA66GF may be used instead of PA6GF (for example, PA6GF30).
  • the glass fiber reinforced plastic may be new or recycled.
  • the cross-sectional shape of the wire F of the present embodiment includes not only a substantially circular shape, but also an elliptical shape, a triangular shape, a quadrangular shape such as a quadrangular shape, a pentagonal shape, a rectangular shape, and other irregular shapes.
  • the diameter of the brush wire F is preferably 0.2 to 1.5 mm, particularly preferably 0.4 to 0.8 mm.
  • PA6GF30 pellets for example, Toray Industries, Inc., nylon resin “Amilan”, 6 nylon / reinforced CM1011G-30
  • Toray Industries, Inc. nylon resin “Amilan”, 6 nylon / reinforced CM1011G-30
  • the obtained pellet was charged into a melt extruder and melted at a temperature of 230 to 280 ° C., and the screw rotation speed was 150 to 200 r. p.
  • a method for producing a glass fiber reinforced plastic wire comprising: a melt extrusion step of extruding a fiber reinforced plastic wire, and a step of cooling and solidifying the melt extruded wire.
  • the extruded molten mixture is cooled and solidified in a cooling bath, and then wound by a winder.
  • waste products of glass fiber reinforced plastic are crushed and processed into recycled pellets by melt extrusion, and the recycled pellets are fed into the melt extruder in the melt extrusion process.
  • the pellet is a recycled product
  • a part is cut from an automotive resin part made of glass fiber reinforced plastic PA6GF, which is a type of polyamide resin, and extruded by a helical screw type melt extruder to obtain a recycled pellet.
  • Recycled product pellets and automobile resin part cutting pieces were cut, and after dissolving the resin with a solvent, glass fibers were separated.
  • the cut surface of the separated glass fiber was observed with an electron micrograph, the fiber length of the glass fiber G was almost the same, and breakage of the glass fiber during the melt extrusion process was hardly observed.
  • the long axis of the glass fiber G is strongly oriented in the wire long axis direction X (fiber length direction in FIG. 1) in the discharge process from the nozzle. It has been confirmed that the composition and configuration are essentially different from the conventional abrasive-containing wire.
  • wire diameters of wire rod F are manufactured in a wide variety, the range of utilization will be expanded. By giving the industrial brush some flexibility, it can be used for various applications such as a twisting brush and a linear brush.
  • polyamide-based resin examples include nylon 6, nylon 66, nylon 610, nylon 612, nylon 12, and nylon 6/66 copolymer, which are appropriately selected.
  • the industrial brush composed of the wire rod of this embodiment is a brush for polishing metal products and deburring, bundling a plurality of wire rods at a metal portion, attaching the metal portion to a polishing apparatus, and using a wire rod F.
  • the surface of a metal product is mechanically polished.
  • This brush can also be used for surface polishing of injection molded resin parts and deburring of cutting molded resin cutting wall surfaces.
  • the wire F of the present embodiment is superior to the conventional wire FP in terms of surface finish, prevention of fusion between wires, and prevention of particulate adhesion, so when used as a polishing brush wire for dry polishing processing Highly useful.
  • the specimen of the wire F is cut along the wire long axis direction X that is the central axis (in the figure, a cross-sectional view from the top (transverse cross section)), and a microfocus X-ray CT manufactured by Shimadzu Corporation
  • the average fiber length of the glass fibers G in the range of photographic imaging was calculated from a photograph of the cut surface taken with an apparatus SMX-160LT, an imaging magnification of 56 times, and an imaging area of 4.9 mm 2 .
  • the calculation method recorded the coordinates of the start point and the end point for 20 arbitrary glass fibers G in the wire F, and then calculated the lengths and their variations as standard deviations.
  • Orientation of glass fiber G As shown in FIG. 2, a test piece of wire F containing glass fiber G is cut along the wire long axis direction X which is its central axis (in the figure, a cross-sectional view from above (transverse cross section)), manufactured by Shimadzu Corporation
  • the orientation of the wire within the photographic imaging range was calculated from a photograph of the cut surface taken with a microfocus X-ray CT apparatus SMX-160LT, an imaging magnification of 56 times, and an imaging area of 4.9 mm 2 .
  • the calculation method recorded the coordinates XYZ of the start point and the end point for 20 arbitrary glass fibers G in the wire F, and then calculated the inclination and the variation thereof as the standard deviation. As shown in FIG.
  • Example 1 Automotive resin parts made of PA6GF30 (nylon 6 mixed with 30% by weight of glass fiber), which is a kind of GFRP, are separated and collected without mixing with different varieties, and crushed into a crushed material.
  • This crushed material has a tensile strength of 83.6 MPa (3 samples), a Charpy impact test result of 11 (5 samples), and an average glass fiber length of the glass fibers G of 0.6 mm.
  • the resin was melt extruded at 160 rpm to obtain a strand.
  • the obtained strand is cooled and solidified and formed into a cycle pellet.
  • the cutting material is pulverized into a powder, and the powder is dried at 120 ° C. for 6 to 8 hours with a hot air dryer or a vacuum dryer to reduce the moisture content, and then charged into the extruder.
  • the moisture content of the recycled pellet is, for example, 0.2%, preferably 0.1% or less.
  • Table 2 shows the physical properties of the crushed material and recycled pellets. Recycled pellets showed higher tensile strength and impact resistance than crushed material, but the Charpy impact test yielded almost the same effect.
  • the glass fiber G is not broken and maintains a substantially uniform length. This is considered to be because melt extrusion with less voiding and less voiding was possible.
  • the diameter of the glass fiber G of the glass fiber reinforced plastic those having a diameter of 3 to 30 ⁇ m can be used.
  • the resin was melt extruded at 240 ° C., a resin pressure of 1.6 MPa, a screw motor rotation speed of 160 rpm, and a screw motor current of 25.7 A.
  • the wire F in a state where it is passed through a cooling water bath filled with tap water and is not yet completely solidified is wound while adjusting the degree of stretching with a manual wire winder, and the diameter is 0.6 to 1.4 mm.
  • a wire was manufactured. Using the obtained wire F, it was processed into a cup-shaped brush (a total axial length of 98 mm and a brush protrusion length of 34 mm).
  • the orientation and length of the GFRP before and after recycling are the same as those of Sample 1 before recycling (plate material was cut out from the automobile resin part and taken out), Sample 2 Before recycling, the U-shaped material (the part of R part was cut out from the automobile resin part), Sample 3 After recycling, the wire F (the wire F manufactured from the recycled pellets after grinding the automobile resin part) was measured. It is as follows.
  • the X-ray CT evaluation result of the orientation degree of the glass fiber G of the wire F is shown in FIGS.
  • the X-ray CT evaluation result of the glass fiber orientation degree of a recycled pellet is shown in FIG. 9, FIG. Glass fiber orientation X-ray CT of recycled pellets (FIG. 9 is twice the length and four times the area of FIG. 10.
  • the glass fiber G in the wire F is also the glass fiber in the recycled pellet. G also has a very narrow variation and a high degree of orientation.
  • the starting point of the glass fiber G is the origin
  • the X axis is the central axis direction of the wire
  • the Y axis and the Z axis are axes orthogonal to the X axis
  • the direction of the X axis is the reference.
  • the orientation angle ⁇ is a large numerical value of either longitude ⁇ or latitude ⁇ .
  • the numerical value in the right column shows the standard deviation.
  • the product before recycling has a large variation in longitude ⁇ , and is in a different direction in the plane.
  • Evaluation A was obtained for the work surface finish of Example 1 of Example 1. In Example 1, it was confirmed that rust was removed more finely, the work surface was finished well, and as a result, a well polished surface was obtained in the same processing time, and evaluation A was obtained. Evaluation A was obtained for the anti-fusing property. Evaluation A or B was obtained about particulate matter adhesion.
  • Example 2 was the same as Example 1, but instead of the cup-shaped brush, as shown in FIG. 11, it was processed into a torsion brush (axial length 80 mm, brush protrusion length 30 mm, diameter 10 to 20 mm). Using this torsion brush, a cylindrical metal member having a cavity shown in FIGS. 12 to 14 is applied to a part around the cylindrical cavity as indicated by an arrow at a rotational speed of 1000 rpm for about 5 seconds. A torsion brush was inserted and a deburring test was performed. It was confirmed that fine burrs that could not be seen were also removed.
  • Example 3 is the same as Example 1, except that high-density polyethylene (HDPE) is kneaded at 0.5% and 2% by weight with respect to the recycled pellets.
  • Table 4 shows a comparison between tensile strength and Charpy impact strength.
  • HDPE is added to the GFRP wire by adding a small amount of polyolefin, for example, high density polyethylene (HDPE).
  • (1) shows the recycled pellets described in Example 1 again, and (2) and (3) show the data of samples manufactured by kneading HDPE into the recycled pellets.
  • (3) When comparing (3), there is no difference in tensile strength, but the impact strength of (3) is improved by 30% compared to the impact strength of (2).
  • Example 4 The above GFRP pellet is manufactured in the same manner as in Example 1 except that it is a new product instead of a recycled product.
  • the recycled GFRP pellets were put into a table-type kneader MC15 (manufactured by Xplore Instruments BV, the Netherlands). After melting, the resin was melt extruded at a screw speed of 30 rpm.
  • the wire was naturally dropped, and the wire was wound (winding speed 5.3 m / min) to produce a wire having a diameter of 0.5 to 0.6 mm ⁇ .
  • the same X-ray CT as in Example 1 was obtained.
  • the obtained wire F it was processed into a cup-shaped brush (a total axial length of 98 mm and a brush protrusion length of 34 mm).
  • FIG. 7 and FIG. 8 show the results of X-ray CT evaluation of glass fiber orientation of the crushed material of automobile resin parts (PA6-GF30).
  • FIG. 15 shows a schematic diagram of X-ray CT of a cross section of a commercially available nylon brush wire containing abrasive grains.
  • the structure of the abrasive grain T has an acute angle portion and what appears to be a nest S in the periphery, but since there is no such structure in the present embodiment, the wire rod F constituting the brush of the present embodiment is The average fiber length and orientation are completely different, and the performance is considered to be clearly reduced.
  • Comparative Example 2 As a result of conducting a work surface finish test on the wire of Comparative Example 2, the evaluation was D, and it was found that Comparative Example 2 was inferior to Examples 1 to 4.
  • Recyclable products can be used to provide industrial brushes with excellent wear resistance and workpiece surface finish, greatly reducing manufacturing costs, and can also be applied to products utilizing the excellent orientation of glass fibers. Is possible.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Reinforced Plastic Materials (AREA)
PCT/JP2016/004118 2015-09-10 2016-09-09 ガラス繊維強化プラスチック製の表面加工用線材 WO2017043089A1 (ja)

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WO2024105886A1 (ja) * 2022-11-18 2024-05-23 三菱電機株式会社 複合樹脂組成物、成形品および複合樹脂組成物の製造方法

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