JP3903134B2 - Impact resistant, shatterproof composite - Google Patents

Impact resistant, shatterproof composite Download PDF

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JP3903134B2
JP3903134B2 JP2004004812A JP2004004812A JP3903134B2 JP 3903134 B2 JP3903134 B2 JP 3903134B2 JP 2004004812 A JP2004004812 A JP 2004004812A JP 2004004812 A JP2004004812 A JP 2004004812A JP 3903134 B2 JP3903134 B2 JP 3903134B2
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fiber
composite material
fibers
resin
impact
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敏和 竹田
政紀 島田
聡 大島
謙一 栗田
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Nippon Sharyo Ltd
Nippon Steel Chemical and Materials Co Ltd
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本発明は、列車やモノレールなどの車両用或いは航空機用複合部材に関するものであり、特に、耐衝撃性を有しており、万一に破壊に至った際においても飛散を防止することのできる耐衝撃、飛散防止複合材に関するものである。   The present invention relates to a vehicle or aircraft composite member such as a train or a monorail, and in particular, has impact resistance and can prevent scattering even in the event of destruction. The present invention relates to a composite material for preventing impact and scattering.

従来、例えば、列車などの車両用部材としては、鉄（スチール）、アルミニウム、ステンレススチールなどの金属材料が一般に使用されている。最近では、軽量化のニーズから、一部、内装用などとして、ガラス繊維或いは炭素繊維を強化繊維として使用した繊維強化複合材、即ち、ガラス繊維強化プラスチック或いは炭素繊維強化プラスチックが採用されている。   Conventionally, for example, as a vehicle member such as a train, a metal material such as iron (steel), aluminum, and stainless steel is generally used. In recent years, fiber-reinforced composite materials using glass fibers or carbon fibers as reinforcing fibers, that is, glass fiber reinforced plastics or carbon fiber reinforced plastics, have been adopted in part for interior use due to the need for weight reduction.

このような車両用部材は、基本的に燃え難い材料が採用されている。例えば、特許文献１及び特許文献２には、燃え難い樹脂と、炭素繊維とからなる繊維強化樹脂複合材料が記載されている。   Such a vehicle member is basically made of a material that hardly burns. For example, Patent Literature 1 and Patent Literature 2 describe a fiber reinforced resin composite material composed of a resin that is difficult to burn and carbon fiber.

しかしながら、特許文献１、２に記載するような車両用部材としての炭素繊維強化樹脂複合材料は、一般に耐衝撃性において劣っており、万一破壊に至った際には、その破片が飛散することとなる。場合によっては、この破片が更に他の部位に衝突し、その部位をも破壊させることとなる。   However, the carbon fiber reinforced resin composite material as a vehicle member as described in Patent Documents 1 and 2 is generally inferior in impact resistance, and in the unlikely event that it breaks, the fragments are scattered. It becomes. In some cases, this debris collides with another part, and that part is also destroyed.

特許文献３には、飛行機、ヘリコプター、軌条車輌などにおいて使用するために、編組機を利用して中空体の繊維メッシュを作製し、樹脂を含浸させて作製した耐衝撃性の繊維複合材料から成る繊維複合衝撃吸収構造体が記載されている。   In Patent Document 3, a hollow fiber mesh is produced using a braiding machine and impregnated with a resin for use in airplanes, helicopters, rail vehicles, etc., and made of an impact-resistant fiber composite material. A fiber composite impact absorbing structure is described.

また、特許文献４には、装甲車などに使用される、ハニカムパネルの一面に繊維強化複合体を接合し、更に繊維強化複合体の表面に金属板を配置し、衝撃を吸収拡散する衝撃吸収防護材が記載されている。   Patent Document 4 discloses an impact absorption protection that is used for an armored vehicle or the like, in which a fiber reinforced composite is joined to one surface of a honeycomb panel, and a metal plate is further disposed on the surface of the fiber reinforced composite to absorb and diffuse impact. The materials are listed.

これら特許文献３、４に記載の材料は、成形性、製造コストなどの点で更なる向上が望まれる。また、複合体の表面に金属板を設けた場合には、耐衝撃性は向上するものの、重量が増大することとなる。
特開平５−２０２２０１号公報 特開平１１−１４７９６５号公報 特開２００３−２６２２４６号公報 特開平７−２４３７９６号公報 The materials described in Patent Documents 3 and 4 are desired to be further improved in terms of moldability and manufacturing cost. In addition, when a metal plate is provided on the surface of the composite, although the impact resistance is improved, the weight is increased.
Japanese Patent Laid-Open No. 5-202201 Japanese Patent Laid-Open No. 11-147965 JP 2003-262246 A Japanese Patent Application Laid-Open No. 7-243796

本発明は、上記従来技術を更に発展させたものである。   The present invention is a further development of the above prior art.

つまり、本発明者らは、従来の複合材料について、更に研究実験を行った結果、金属繊維の破断伸びが繊維強化複合材（ＦＲＰ材）のそれより大きく、しかも、弾性率もＦＲＰ材と同等か、或いはそれ以上であることからエネルギー吸収率が大きいことに着目した。   That is, as a result of further research and experiments on the conventional composite material, the present inventors have found that the breaking elongation of the metal fiber is larger than that of the fiber reinforced composite material (FRP material), and the elastic modulus is equal to that of the FRP material. Or more than that, we focused on the large energy absorption rate.

そこで、金属繊維にて作製したメッシュ状体をＦＲＰ材の表面に配置することにより、
（１）固形物が衝突する表側でのＦＲＰ材の衝撃強さを向上させることができ、又、万一破壊に至った際にも、ＦＲＰ材が飛散することが防止され、更に、
（２）固形物が衝突する裏側においては、突き抜けを抑える効果と、突き抜けた際の裏側のＦＲＰ材の飛散防止が可能である、
ことを見出した。同様のことが、炭素繊維強化複合材の上に、より伸度の大きい衝撃に強い特性を有したガラス繊維、アラミド繊維、ベンズアゾール繊維を金属繊維の代わりに使用した場合にも言える。 Therefore, by arranging a mesh-like body made of metal fibers on the surface of the FRP material,
(1) It is possible to improve the impact strength of the FRP material on the front side where the solids collide, and even if it breaks down, the FRP material is prevented from scattering,
(2) On the back side where the solid matter collides, it is possible to prevent the penetration of the FRP material on the back side and the effect of suppressing the penetration,
I found out. The same can be said for the case where glass fiber, aramid fiber, and benzazole fiber, which have higher elongation and impact resistance characteristics, are used instead of metal fiber on the carbon fiber reinforced composite material.

本発明は、斯かる本発明者らの新規な知見に基づきなされたものである。   The present invention has been made based on such novel findings of the present inventors.

従って、本発明の目的は、固形物が衝突した際の繊維強化複合材（ＦＲＰ材）の衝撃強さを向上させることができ、又、万一に破壊に至った際にも、ＦＲＰ材の飛散を防止することのできる耐衝撃、飛散防止複合材を提供することである。   Therefore, the object of the present invention is to improve the impact strength of the fiber reinforced composite material (FRP material) when the solid collides with each other. An object is to provide an impact-resistant and scattering-preventing composite material capable of preventing scattering.

本発明の他の目的は、製造コストが低減でき、しかも、低重量で、薄くすることができ、成形性に優れた耐衝撃、飛散防止複合材を提供することである。   Another object of the present invention is to provide an impact-resistant and scattering-preventing composite material that can reduce the manufacturing cost, can be reduced in weight, can be thinned, and has excellent moldability.

上記目的は本発明に係る耐衝撃、飛散防止複合材にて達成される。 The above object is achieved by the impact resistant and scattering prevention composite material according to the present invention .

本発明の第一の態様によると、破断時伸度２％以上、引張弾性率７０ＧＰａ以上のガラス繊維、アラミド繊維、若しくは、ベンズアゾール繊維を複数収束し、引き揃えた繊度１００ｔｅｘ〜２０００ｔｅｘの糸条にて形成されたメッシュ状体を、強化繊維として炭素繊維を使用した繊維強化樹脂シートの少なくとも一側の面に一体的に設けたことを特徴とする耐衝撃、飛散防止複合材が提供される。 According to the first aspect of the present invention, a yarn having a fineness of 100 tex to 2000 tex in which a plurality of glass fibers, aramid fibers, or benzazole fibers having an elongation at break of 2% or more and a tensile elastic modulus of 70 GPa or more are converged and aligned. An impact-resistant and scattering-preventing composite material is provided in which the mesh-like body formed in (1) is integrally provided on at least one side of a fiber-reinforced resin sheet using carbon fibers as reinforcing fibers. .

また、本発明の第二の態様によると、破断時伸度２％以上、引張弾性率７０ＧＰａ以上のガラス繊維、アラミド繊維、若しくは、ベンズアゾール繊維を複数収束し、引き揃えた繊度１００ｔｅｘ〜２０００ｔｅｘの糸条を、炭素繊維の織物にメッシュ状に織り込み、この織物に樹脂を含浸させて繊維強化樹脂シートとしたことを特徴とする耐衝撃、飛散防止複合材が提供される。 According to the second aspect of the present invention, a plurality of glass fibers, aramid fibers, or benzazole fibers having an elongation at break of 2% or more and a tensile elastic modulus of 70 GPa or more are converged and arranged to have a fineness of 100 tex to 2000 tex. An impact-resistant and scattering-resistant composite material is provided in which yarns are woven into a carbon fiber woven fabric in a mesh shape, and the woven fabric is impregnated with a resin to form a fiber-reinforced resin sheet.

本発明の耐衝撃、飛散防止複合材は、固形物が衝突した際の繊維強化複合材（ＦＲＰ材）の衝撃強さを向上させることができ、又、万一破壊に至った際にも、ＦＲＰ材の飛散を防止することができる。更に、本発明の耐衝撃、飛散防止複合材は、製造コストを低減でき、しかも、成形性に優れている。   The impact resistance and scattering prevention composite material of the present invention can improve the impact strength of the fiber reinforced composite material (FRP material) when the solid collides, and even when it breaks down, Scattering of the FRP material can be prevented. Furthermore, the impact resistance and scattering prevention composite material of the present invention can reduce the manufacturing cost and is excellent in moldability.

以下、本発明に係る耐衝撃、飛散防止複合材を図面に則して更に詳しく説明する。   Hereinafter, the impact resistance and scattering prevention composite material according to the present invention will be described in more detail with reference to the drawings.

参考実施例１
図１に、本発明の耐衝撃、飛散防止複合材１の一参考実施例の概略構成を示す。本実施例の耐衝撃、飛散防止複合材１は、車輌用部材などとしてそのまま使用することもでき、或いは、例えば、車輌用部材の基材部分４に樹脂５にて接着して使用することもできる。この場合には、基材部分４としては、軽量部材、例えば、通常使用されるアルミニウム或いはアラミド樹脂などで作製した、金属或いは樹脂製のハニカム構造体、例えば、ディーアイシーヘクセル株式会社製の「ノーメックスハニカムコア（ＨＲＨ−７８）」(商品名）などを使用することができる。場合によっては、ウレタンフォームなどの樹脂発泡材なども使用可能である。又、基材部分４として炭素繊維若しくはガラス繊維等を用いた繊維強化複合材とハニカム構造体等の軽量部材の組み合わせでも使用可能である。 Reference Example 1
FIG. 1 shows a schematic configuration of one reference embodiment of the impact resistant and scattering prevention composite material 1 of the present invention. The impact resistance and scattering prevention composite material 1 of the present embodiment can be used as it is as a vehicle member or the like, or, for example, can be used by adhering to a base material portion 4 of a vehicle member with a resin 5. it can. In this case, as the base material portion 4, a lightweight member, for example, a metal or resin honeycomb structure made of a commonly used aluminum or aramid resin, for example, manufactured by DIC Hexel Co., Ltd. Nomex honeycomb core (HRH-78) "(trade name) can be used. In some cases, a resin foam material such as urethane foam can be used. A combination of a fiber reinforced composite material using carbon fiber or glass fiber as the base material portion 4 and a lightweight member such as a honeycomb structure can also be used.

図２（ａ）、（ｂ）を参照すると、本実施例にて、耐衝撃、飛散防止複合材１は、シート状の繊維強化樹脂、即ち、繊維強化樹脂シート２と、線径１００μｍ〜１０００μｍの金属線にて形成されたメッシュ状体３とを有する。メッシュ状体３は、繊維強化樹脂シート２の一側の面に（図２（ａ））、或いは、両面に（図２（ｂ））に、一体的に設けられる。繊維強化樹脂シート２は、強化繊維２ａにマトリックス樹脂２ｂを含浸して作製される。   Referring to FIGS. 2 (a) and 2 (b), in this example, the impact resistance and scattering prevention composite material 1 is a sheet-like fiber reinforced resin, that is, a fiber reinforced resin sheet 2 and a wire diameter of 100 μm to 1000 μm. And a mesh-like body 3 formed of a metal wire. The mesh-like body 3 is integrally provided on one side of the fiber reinforced resin sheet 2 (FIG. 2A) or on both sides (FIG. 2B). The fiber reinforced resin sheet 2 is produced by impregnating the reinforcing fiber 2a with the matrix resin 2b.

通常、メッシュ状体３は、繊維強化樹脂シート２の表面に樹脂を塗布することにより、或いは、繊維強化樹脂シート２の表面にメッシュ状体３を設置し、上側より接着剤を塗布することにより、繊維強化樹脂シート２の表面に一体に接着される。場合によっては、繊維強化樹脂シート２を作製する際に、繊維強化樹脂シート２のマトリックス樹脂２ｂが未だ硬化していないときに、その表面に、既に接着用樹脂を含浸させたメッシュ状体３を配置し、押圧接着して一体に硬化することもできる。   Usually, the mesh-like body 3 is obtained by applying a resin to the surface of the fiber-reinforced resin sheet 2 or by installing the mesh-like body 3 on the surface of the fiber-reinforced resin sheet 2 and applying an adhesive from the upper side. The fiber reinforced resin sheet 2 is integrally bonded to the surface. In some cases, when the fiber reinforced resin sheet 2 is produced, when the matrix resin 2b of the fiber reinforced resin sheet 2 is not yet cured, the mesh-like body 3 that is already impregnated with the adhesive resin is applied to the surface thereof. It can also be placed and hardened together by pressure bonding.

メッシュ状体３は、線径１００μｍ〜１０００μｍの金属線３ａ、３ｂを使用し、隣接する金属線間隔ｗ１、ｗ２が１ｍｍ〜１０ｍｍとされる２軸のメッシュ状シートとされる。金属線３ａ、３ｂは、上記線径を有した単線であっても良く、線径５０μｍ〜１５０μｍの金属繊維を複数本、例えば、２〜５本収束し、引き揃えて形成することができる。   The mesh-like body 3 is a biaxial mesh-like sheet that uses metal wires 3a and 3b having a wire diameter of 100 μm to 1000 μm, and the interval between adjacent metal wires w1 and w2 is 1 mm to 10 mm. The metal wires 3a and 3b may be single wires having the above-mentioned wire diameter, and can be formed by converging a plurality of, for example, 2 to 5, metal fibers having a wire diameter of 50 μm to 150 μm.

金属線３ａ、３ｂとしては、鋼、ステンレススチール、チタン、ニッケル、若しくは、アルミニウムのいずれかを使用することができる。また、ステンレススチール以外の鉄合金、チタン合金、ニッケル合金、若しくは、アルミニウム合金も又、使用可能である。金属線３ａ、３ｂは、同じ材質ものものでも良いし、異なるものでも良い。   As the metal wires 3a and 3b, steel, stainless steel, titanium, nickel, or aluminum can be used. Moreover, iron alloys other than stainless steel, titanium alloys, nickel alloys, or aluminum alloys can also be used. The metal wires 3a and 3b may be made of the same material or different.

本実施例では、図２（ａ）に示すように、メッシュ状体３は、線径１５０μｍのステンレススチール繊維を２本収束した金属線３ａ、３ｂを使用し、互いに直交して配置された２軸メッシュ状シートとしたものを使用した。また、縦糸３ａと横糸３ｂとの間隔ｗ１、ｗ２は、１０ｍｍとした。   In this embodiment, as shown in FIG. 2 (a), the mesh-like body 3 uses metal wires 3a and 3b in which two stainless steel fibers having a wire diameter of 150 μm are converged, and 2 arranged orthogonal to each other. A shaft mesh sheet was used. Further, the distances w1 and w2 between the warp yarn 3a and the weft yarn 3b were 10 mm.

上述のように、本実施例では、メッシュ状体３は、２軸メッシュ状シートであるとしたが、本発明はこれに限定されるものではなく、３本の金属線を互いに異なる角度で配置して構成される３軸メッシュ状シートであっても良い。   As described above, in this embodiment, the mesh body 3 is a biaxial mesh sheet, but the present invention is not limited to this, and the three metal wires are arranged at different angles. A triaxial mesh sheet configured as described above may be used.

図１に示す本実施例にて、繊維強化樹脂シート２は、強化繊維２ａにマトリックス樹脂２ｂを含浸させて作製されるが、強化繊維２ａとしては、炭素繊維、ガラス繊維、アラミド繊維、ポリエステル繊維、ナイロン繊維、若しくは、ベンズアゾール繊維を使用することができる。また、繊維強化樹脂シート２における繊維含有率は、２０％〜７０％（体積）とされ、通常、５０％〜６０％（体積）とされる。また、強化繊維の目付量は、１００ｇ／ｍ2〜３００ｇ／ｍ2とされる。 In the present embodiment shown in FIG. 1, the fiber reinforced resin sheet 2 is produced by impregnating the reinforcing fiber 2a with the matrix resin 2b. The reinforcing fiber 2a includes carbon fiber, glass fiber, aramid fiber, and polyester fiber. Nylon fiber or benzazole fiber can be used. The fiber content in the fiber reinforced resin sheet 2 is 20% to 70% (volume), and is usually 50% to 60% (volume). The weight per unit area of the reinforcing fiber is a 100g / m 2 ~300g / m 2 .

また、繊維強化樹脂シート２のマトリックス樹脂２ｂは、エポキシ樹脂、ビニールエステル樹脂、不飽和ポリエステル樹脂、ＭＭＡ樹脂、アクリル樹脂、ウレタン樹脂、又は、メラミン樹脂を使用することができる。メッシュ状体３を繊維強化樹脂シート２に接着する樹脂も、上記樹脂を使用し得る。   Moreover, the matrix resin 2b of the fiber reinforced resin sheet 2 can use an epoxy resin, vinyl ester resin, unsaturated polyester resin, MMA resin, acrylic resin, urethane resin, or melamine resin. The above resin can also be used as a resin for bonding the mesh body 3 to the fiber reinforced resin sheet 2.

上記構成の繊維強化樹脂シート２は、厚さ（ｔ）＝０．１ｍｍ〜１０ｍｍとされる。厚さ（ｔ）が０．１ｍｍ未満の場合には、耐衝撃性及び飛散防止性能が十分に発揮されず、１０ｍｍを超えると、コスト、重量、及び成形性の点で問題が出てくる。   The fiber reinforced resin sheet 2 having the above configuration has a thickness (t) = 0.1 mm to 10 mm. When the thickness (t) is less than 0.1 mm, the impact resistance and anti-scattering performance are not sufficiently exhibited. When the thickness (t) exceeds 10 mm, there are problems in terms of cost, weight, and moldability.

この繊維強化樹脂シート２の表面にメッシュ状体３を接着した、耐衝撃、飛散防止複合材１は、上述のように、そのまま、例えば車両用部材として使用することもできるが、必要に応じて、車両用部材を構成する基材４の表面に接着して使用することもできる。   As described above, the impact-resistant and scattering-preventing composite material 1 in which the mesh-like body 3 is bonded to the surface of the fiber-reinforced resin sheet 2 can be used as it is, for example, as a vehicle member. It can also be used by adhering to the surface of the base material 4 constituting the vehicle member.

本実施例の耐衝撃、飛散防止複合材１は、繊維強化樹脂シート１に対して耐衝撃、飛散防止性能が重視され、その強度がそれほど要求されない場合には、その厚さは０．１ｍｍ〜１．０ｍｍというように、最小限度の薄肉とすることができる。この場合には、厚肉の場合に比較して成形性が飛躍的に増大する。また、薄肉としたことにより、強化繊維の使用量を最小限度に抑えることができ、コストの面でも大幅に低減し得る。 The impact resistance and scattering prevention composite material 1 of the present embodiment emphasizes impact resistance and scattering prevention performance with respect to the fiber reinforced resin sheet 1, and when the strength is not so required, the thickness is 0.1 mm to The minimum thickness can be as small as 1.0 mm. In this case, the moldability is dramatically increased as compared with the case of a thick wall. In addition, by using a thin wall, the amount of reinforcing fibers used can be minimized, and the cost can be greatly reduced.

上記構成の本実施例の耐衝撃、飛散防止複合材１によれば、金属線３ａ、３ｂにて作製したメッシュ状体３を繊維強化樹脂シート（ＦＲＰ材）２の表面に配置したことにより、固形物が衝突する表側でのＦＲＰ材２の衝撃強さを向上させることができ、又、万一破壊に至った際にも、ＦＲＰ材２が飛散することが防止される。更に、ＦＲＰ材２の両面に金属線３ａ、３ｂにて作製したメッシュ状体３を配置した場合には、固形物が衝突する裏側においては、突き抜けを抑えることができ、また、突き抜けた際の裏側のＦＲＰ材２の飛散防止を達成することができる。 According to the impact resistance and scattering prevention composite material 1 of this example having the above-described configuration, by arranging the mesh-like body 3 made of the metal wires 3a and 3b on the surface of the fiber reinforced resin sheet (FRP material) 2, The impact strength of the FRP material 2 on the front side where the solid matter collides can be improved, and the FRP material 2 is prevented from being scattered in the event of destruction. Furthermore, when the mesh-like body 3 made of the metal wires 3a and 3b is arranged on both surfaces of the FRP material 2, the penetration on the back side where the solid matter collides can be suppressed, and when the penetration is made. Prevention of scattering of the FRP material 2 on the back side can be achieved.

更には、本実施例の耐衝撃、飛散防止複合材１によれば、製造コストが低減でき、しかも、低重量で、薄くすることができるという利点がある。 Furthermore, according to the impact resistance and scattering prevention composite material 1 of the present embodiment , there is an advantage that the manufacturing cost can be reduced and the weight can be reduced with a low weight.

参考実施例２
図３に、本発明の耐衝撃、飛散防止複合材の他の参考実施例を示す。本実施例の耐衝撃、飛散防止複合材１の全体構成は、参考実施例１と同様とされ、同じ作用をなす部材には同じ参照番号を付し、その詳しい説明は省略し、参考実施例１の説明を援用する。 Reference Example 2
FIG. 3 shows another reference embodiment of the impact-resistant and scattering-preventing composite material of the present invention. The overall structure of the impact resistance and scattering prevention composite material 1 of the present embodiment is the same as that of the reference embodiment 1, members having the same functions are denoted by the same reference numerals, detailed description thereof is omitted, and the reference embodiment is omitted. The description of 1 is used.

本実施例によると、図１に示す複合材１に使用したメッシュ状体３を形成する金属線３ａ、３ｂは、図３に示すように、繊維強化樹脂シート、即ち、複合材１の強化繊維２ａに織り込まれる。   According to the present embodiment, the metal wires 3a and 3b forming the mesh body 3 used in the composite material 1 shown in FIG. 1 are fiber reinforced resin sheets, that is, the reinforced fibers of the composite material 1 as shown in FIG. 2a.

つまり、本実施例によれば、強化繊維２ａにて作製された織物（クロス）２Ａを、複合材１に強化繊維として使用する場合には、強化繊維２ａの織物２Ａを製作する際に、金属線３（３ａ、３ｂ）を１ｍｍ〜１０ｍｍのピッチでメッシュ状に織り込むことができる。このとき、織物２Ａにおける強化繊維の目付量は、１００ｇ／ｍ2〜３００ｇ／ｍ2とされる。 That is, according to the present embodiment, when the woven fabric (cross) 2A made of the reinforcing fiber 2a is used as the reinforcing fiber in the composite material 1, when the woven fabric 2A of the reinforcing fiber 2a is manufactured, the metal The wire 3 (3a, 3b) can be woven in a mesh shape at a pitch of 1 mm to 10 mm. At this time, mass per unit area of the reinforcing fiber in the fabric 2A is a 100g / m 2 ~300g / m 2 .

本実施例によれば、このようにして作製した金属線３が織り込まれた強化繊維織物２Ａに樹脂２ｂを含浸させることにより、繊維強化樹脂シート、即ち、本実施例の耐衝撃、飛散防止複合材１が作製される。   According to the present embodiment, the fiber reinforced resin sheet, that is, the impact resistance and scattering prevention composite of the present embodiment, is obtained by impregnating the resin 2b into the reinforcing fiber fabric 2A woven with the metal wire 3 thus manufactured. Material 1 is produced.

強化繊維織物２Ａを構成する強化繊維２ａ及び金属繊維３、並びに、マトリックス樹脂２ｂは、実施例１と同じものを使用し得る。また、本実施例においても、複合材１における繊維含有率は、２０％〜７０％（体積）とされ、通常、５０％〜６０％（体積）とされる。   The same reinforcing fibers 2a and metal fibers 3 as the reinforcing fiber fabric 2A and the matrix resin 2b can be used as in the first embodiment. Also in this example, the fiber content in the composite material 1 is 20% to 70% (volume), and is usually 50% to 60% (volume).

実施例１
次に、本発明の一実施例について説明する。 Example 1
Next, an embodiment of the present invention.

本実施例の耐衝撃、飛散防止複合材１は、図１及び図２を参照して参考実施例１で説明したと同様の構成とされる。従って、本実施例においても、図１及び図２を参照して説明するが、同じ構成及び機能をなす部材には同じ参照番号を使用し、詳しい説明は省略する。ただ、参考実施例１とは、次の点において異なる。 The impact resistance and scattering prevention composite material 1 of the present embodiment has the same configuration as described in the reference embodiment 1 with reference to FIGS. 1 and 2. Accordingly, in the present embodiment, the description will be given with reference to FIGS. 1 and 2, but the same reference numerals are used for members having the same configuration and function, and detailed description thereof is omitted. However, it differs from Reference Example 1 in the following points.

つまり、本実施例１は、参考実施例１とは、図１及び図２を参照して、
（１）強化繊維樹脂シート２を構成する強化繊維２ａとして、参考実施例１においては種々の強化繊維を使用するものとしたが、実施例１では、炭素繊維を使用する。一般的に、炭素繊維は、引張強度は強いが破断時伸度が０．５〜１．８％と低く衝撃に弱い材料である。
（２）前記強化繊維樹脂シート２の少なくとも一側の面に一体的に設けられるメッシュ状体３（３ａ、３ｂ）は、参考実施例１では金属線で形成したが、実施例１では、破断時伸度２％以上、引張弾性率７０ＧＰａ以上のガラス繊維、アラミド繊維、若しくは、ベンズアゾール繊維を複数収束し、引き揃えた繊度１００ｔｅｘ〜２０００ｔｅｘの糸条にて形成する。
点において異なる。 In other words, this embodiment 1 is different from the reference embodiment 1 with reference to FIG. 1 and FIG.
(1) As the reinforcing fiber 2a constituting the reinforcing fiber resin sheet 2, various reinforcing fibers are used in Reference Example 1, but in Example 1 , carbon fibers are used. In general, carbon fiber is a material that has a high tensile strength but a low elongation at break of 0.5 to 1.8% and is vulnerable to impact.
(2) The mesh-like body 3 (3a, 3b) provided integrally on at least one surface of the reinforcing fiber resin sheet 2 is formed of a metal wire in the reference example 1, but in the example 1 , it is broken. A plurality of glass fibers, aramid fibers, or benzazole fibers having a time elongation of 2% or more and a tensile elastic modulus of 70 GPa or more are converged and formed with a line having a fineness of 100 tex to 2000 tex.
It is different in point.

本実施例では、上述のように、メッシュ状体３を形成するのに、破断時伸度が２％以上、引張弾性率が７０ＧＰａ以上の上記繊維にて形成される繊度１００ｔｅｘ〜２０００ｔｅｘとされる糸条３（３ａ、３ｂ）が使用されるが、この糸条３は、実施例１、２の金属線３と同様の粘り強さを発揮することができ、炭素繊維強化樹脂シート２の耐衝撃性の向上を図り、また、飛散防止性能を付与することができる。   In the present embodiment, as described above, the mesh-like body 3 is formed with a fineness of 100 tex to 2000 tex formed by the above fibers having an elongation at break of 2% or more and a tensile elastic modulus of 70 GPa or more. Although the yarn 3 (3a, 3b) is used, this yarn 3 can exhibit the same tenacity as the metal wire 3 of Examples 1 and 2, and the impact resistance of the carbon fiber reinforced resin sheet 2 The improvement of the property can be achieved, and the anti-scattering performance can be imparted.

本実施例１によると、上記ガラス繊維等の糸条にて形成されるメッシュ状体３（３ａ、３ｂ）は、参考実施例１にて説明したと同様に、隣接する糸条間隔ｗ１、ｗ２が１ｍｍ〜１０ｍｍとされる２軸のメッシュ状シートとされる。メッシュ状体３は、これに限定されるものではなく、３本の糸条を互いに異なる角度で配置して構成される３軸メッシュ状シートであっても良い。 According to the first embodiment, the mesh-like body 3 (3a, 3b) formed of the above-described yarns such as glass fibers is similar to that described in the reference embodiment 1, and the interval between adjacent yarns w1, w2 is as follows. Is a biaxial mesh sheet having a thickness of 1 mm to 10 mm. The mesh body 3 is not limited to this, and may be a triaxial mesh sheet configured by arranging three yarns at different angles.

炭素繊維強化樹脂シート２のマトリックス樹脂２ｂは、参考実施例１と同じものを使用し得る。また、本実施例においても、複合材１における繊維含有率は、２０％〜７０％（体積）とされ、通常、５０％〜６０％（体積）とされる。このとき、炭素繊維強化樹脂シート２における炭素繊維の目付量は、１００ｇ／ｍ2〜３００ｇ／ｍ2とされる。 As the matrix resin 2b of the carbon fiber reinforced resin sheet 2, the same one as in Reference Example 1 can be used. Also in this example, the fiber content in the composite material 1 is 20% to 70% (volume), and is usually 50% to 60% (volume). In this case, the basis weight of the carbon fibers in the carbon fiber reinforced resin sheet 2 is a 100g / m 2 ~300g / m 2 .

また、炭素繊維強化樹脂シート２のマトリックス樹脂は、エポキシ樹脂、ビニールエステル樹脂、不飽和ポリエステル樹脂、ＭＭＡ樹脂、アクリル樹脂、ウレタン樹脂、又は、メラミン樹脂とされる。   The matrix resin of the carbon fiber reinforced resin sheet 2 is an epoxy resin, a vinyl ester resin, an unsaturated polyester resin, an MMA resin, an acrylic resin, a urethane resin, or a melamine resin.

上記本実施例の構成の複合材１においても、参考実施例１と同じように、厚さ（ｔ）＝０．１ｍｍ〜１０ｍｍとされ、必要に応じて、車両用部材を構成する上記基材４の表面に接着することができる。 Also in the composite material 1 of the above-mentioned configuration of the present embodiment, in the same manner as in Reference Example 1, is the thickness (t) = 0.1 mm to 10 mm, as required, the base material constituting the vehicle member 4 can be adhered to the surface.

本実施例の耐衝撃、飛散防止複合材１によれば、参考実施例１の場合と同様の作用効果を達成し得るほかに、参考実施例１に比較し、ガラス繊維、アラミド繊維、ベンズアゾール繊維が金属繊維に比較し比重が小さいことにより軽量化の効果が得られる。 Impact of this embodiment, according to the anti-scattering composite 1, in addition capable of achieving the same effect as in Reference Example 1, as compared to Reference Example 1, glass fibers, aramid fibers, benzazole Since the specific gravity of the fiber is smaller than that of the metal fiber, the effect of reducing the weight can be obtained.

実施例２
次に、本発明の他の実施例について説明する。 Example 2
Next, another embodiment of the present invention will be described.

上記実施例１では、破断時伸度２％以上、引張弾性率７０ＧＰａ以上のガラス繊維、アラミド繊維、若しくは、ベンズアゾール繊維を複数収束し、引き揃えた繊度１００ｔｅｘ〜２０００ｔｅｘの糸条にて形成したメッシュ状体３が、繊維強化樹脂シート２の表面に一体的に設けられた。これに対して、本実施例２では、図３を参照して参考実施例２で説明したと同様に、これら糸条３が、繊維強化樹脂シート、即ち、複合材１の強化繊維２ａに織り込まれる。又、本実施例によれば、実施例１と同様に、複合材１の強化繊維２ａとして炭素繊維が使用される。 In Example 1 described above, a plurality of glass fibers, aramid fibers, or benzazole fibers having an elongation at break of 2% or more and a tensile modulus of elasticity of 70 GPa or more were converged and formed with yarns having an aligned fineness of 100 tex to 2000 tex. The mesh-like body 3 was integrally provided on the surface of the fiber reinforced resin sheet 2. In contrast, in Example 2, in the same manner as described in Reference Example 2 with reference to FIG. 3, these yarns 3, fiber-reinforced resin sheet, i.e., woven reinforcing fibers 2a of the composite material 1 It is. Further, according to the present embodiment, carbon fibers are used as the reinforcing fibers 2 a of the composite material 1 as in the first embodiment.

つまり、図３を参照して説明すると、本実施例においても、炭素繊維２ａにて作製された織物（クロス）２Ａを、複合材１に強化繊維として使用する場合には、強化繊維２ａの織物２Ａを製作する際に、上記ガラス繊維などの糸条３（３ａ、３ｂ）を１ｍｍ〜１０ｍｍのピッチでメッシュ状に織り込むことができる。このとき、織物２Ａにおける強化繊維の目付量は、１００ｇ／ｍ2〜３００ｇ／ｍ2とされる。 That is, with reference to FIG. 3, also in this embodiment, when the fabric (cross) 2A made of the carbon fiber 2a is used as the reinforcing fiber in the composite material 1, the fabric of the reinforcing fiber 2a. When producing 2A, the above-described glass fibers and other yarns 3 (3a, 3b) can be woven in a mesh shape at a pitch of 1 mm to 10 mm. At this time, mass per unit area of the reinforcing fiber in the fabric 2A is a 100g / m 2 ~300g / m 2 .

つまり、実施例２は、参考実施例２とは、
（１）強化繊維織物２Ａにメッシュ状にて織り込まれる金属線３ａ、３ｂの代わりに、破断時伸度２％以上、引張弾性率７０ＧＰａ以上のガラス繊維、アラミド繊維、若しくは、ベンズアゾール繊維を複数収束し、引き揃えた繊度１００ｔｅｘ〜２０００ｔｅｘとされる糸条が使用される点。更には、
（２）参考実施例２においては、強化繊維２ａは、種々の強化繊維を使用するものとしたが、炭素繊維を使用した点。
において異なる。 That is, Example 2 is different from Reference Example 2 in that
(1) A plurality of glass fibers, aramid fibers, or benzazole fibers having an elongation at break of 2% or more and a tensile elastic modulus of 70 GPa or more instead of the metal wires 3a and 3b woven into the reinforcing fiber fabric 2A in a mesh shape The point to which the thread | yarn used as the fineness of 100 tex-2000 tex which converged and arranged is used. Furthermore,
(2) In Reference Example 2, the reinforcing fiber 2a uses various reinforcing fibers, but uses carbon fibers.
Different in.

本実施例では、実施例１と同様に、破断時伸度が２％以上、引張弾性率が７０ＧＰａ以上の上記繊維にて形成される繊度１００ｔｅｘ〜２０００ｔｅｘとされる糸条３は、参考実施例１、２の金属線３と同様の粘り強さを発揮することができ、炭素繊維強化樹脂シート、即ち、複合材１の耐衝撃性の向上を図り、また、飛散防止性能を付与することができる。 In this example, as in Example 1 , the yarn 3 having a fineness of 100 tex to 2000 tex formed with the above fibers having an elongation at break of 2% or more and a tensile modulus of 70 GPa or more is a reference example. The tenacity similar to that of the metal wires 3 of 1 and 2 can be exhibited, the impact resistance of the carbon fiber reinforced resin sheet, that is, the composite material 1 can be improved, and anti-scattering performance can be imparted. .

強化繊維織物２Ａを構成する炭素繊維２ａ及び糸条３、並びに、マトリックス樹脂２ｂは、実施例３と同じものを使用し得る。また、本実施例においても、複合材１における繊維含有率は、２０％〜７０％（体積）とされ、通常、５０％〜６０％（体積）とされる。   The same carbon fibers 2a and yarns 3 and matrix resin 2b constituting the reinforcing fiber fabric 2A as those in Example 3 can be used. Also in this example, the fiber content in the composite material 1 is 20% to 70% (volume), and is usually 50% to 60% (volume).

上記本実施例の構成の複合材１においても、厚さ（ｔ）＝０．１ｍｍ〜１０ｍｍとされ、必要に応じて、車両用部材を構成する上記基材４の表面に接着することができる。   Also in the composite material 1 having the configuration of the present embodiment, the thickness (t) is set to 0.1 mm to 10 mm, and can be bonded to the surface of the base material 4 constituting the vehicle member, if necessary. .

このように、本実施例によれば、上記糸条３が織り込まれた炭素繊維織物２Ａに樹脂２ｂを含浸させることにより、図３に示す構成の繊維強化樹脂シート、即ち、本実施例の耐衝撃、飛散防止複合材１が作製される。   Thus, according to the present embodiment, the carbon fiber fabric 2A in which the yarn 3 is woven is impregnated with the resin 2b, whereby the fiber reinforced resin sheet having the configuration shown in FIG. The impact and scattering prevention composite material 1 is produced.

本実施例の耐衝撃、飛散防止複合材１によれば、参考実施例１、２の場合と同様の作用効果を達成し得るほかに、参考実施例１、２に比較し、ガラス繊維、アラミド繊維、ベンズアゾール繊維が金属繊維に比較し比重が小さいことにより軽量化の効果が得られる。 Impact of this embodiment, according to the anti-scattering composite 1, in addition capable of achieving the same effect as the case of Reference Examples 1 and 2, compared to Reference Examples 1 and 2, glass fibers, aramid Since the specific gravity of the fiber and the benzazole fiber is smaller than that of the metal fiber, the effect of reducing the weight can be obtained.

本発明に係る耐衝撃、飛散防止複合材の一実施例を示す断面図である。It is sectional drawing which shows one Example of the impact-resistant and scattering prevention composite material which concerns on this invention. 本発明に係る耐衝撃、飛散防止複合材の全体構成を示す斜視図である。It is a perspective view which shows the whole structure of the impact-resistant and scattering prevention composite material which concerns on this invention. 本発明に係る耐衝撃、飛散防止複合材の他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the impact-resistant and scattering prevention composite material which concerns on this invention.

符号の説明Explanation of symbols

１ 耐衝撃、飛散防止複合材
２ 繊維強化樹脂シート（ＦＲＰ材）
２ａ 強化繊維
２ｂ マトリックス樹脂
２Ａ 織物
３ シート状体
３ａ、３ｂ 金属線（又は、ガラス繊維などの糸条）
４ 基材（軽量部材）
５ 接着剤 1 Impact-resistant, scattering prevention composite material 2 Fiber reinforced resin sheet (FRP material)
2a Reinforcing fiber 2b Matrix resin 2A Woven fabric 3 Sheet-like body 3a, 3b Metal wire (or yarn such as glass fiber)
4 Base material (light weight member)
5 Adhesive

Claims (6)

破断時伸度２％以上、引張弾性率７０ＧＰａ以上のガラス繊維、アラミド繊維、若しくは、ベンズアゾール繊維を複数収束し、引き揃えた繊度１００ｔｅｘ〜２０００ｔｅｘの糸条にて形成されたメッシュ状体を、強化繊維として炭素繊維を使用した繊維強化樹脂シートの少なくとも一側の面に一体的に設けたことを特徴とする耐衝撃、飛散防止複合材。   A mesh-like body formed of yarns having a fineness of 100 tex to 2000 tex, in which a plurality of glass fibers, aramid fibers, or benzazole fibers having an elongation at break of 2% or more and a tensile elastic modulus of 70 GPa or more are converged and aligned, An impact-resistant and scattering-resistant composite material characterized by being integrally provided on at least one surface of a fiber-reinforced resin sheet using carbon fibers as reinforcing fibers. 破断時伸度２％以上、引張弾性率７０ＧＰａ以上のガラス繊維、アラミド繊維、若しくは、ベンズアゾール繊維を複数収束し、引き揃えた繊度１００ｔｅｘ〜２０００ｔｅｘの糸条を、炭素繊維の織物にメッシュ状に織り込み、この織物に樹脂を含浸させて繊維強化樹脂シートとしたことを特徴とする耐衝撃、飛散防止複合材。   A plurality of glass fibers, aramid fibers, or benzazole fibers having an elongation at break of 2% or more and a tensile modulus of elasticity of 70 GPa or more are converged, and the aligned yarns having a fineness of 100 tex to 2000 tex are meshed on a carbon fiber fabric. An impact-resistant and scattering-resistant composite material characterized by being woven and impregnating a resin into the woven fabric to form a fiber-reinforced resin sheet. 前記隣接する糸条間隔が１ｍｍ〜１０ｍｍであることを特徴とする請求項１又は２の耐衝撃、飛散防止複合材。 The impact-resistant and scattering-resistant composite material according to claim 1 or 2 , wherein the interval between adjacent yarns is 1 mm to 10 mm. 前記繊維強化樹脂シートの強化繊維含有率は、２０％〜７０％（体積）であることを特徴とする請求項１、２、又は３の耐衝撃、飛散防止複合材。 The reinforced fiber content of the fiber reinforced resin sheet is 20% to 70% (volume), and the impact resistant and scattering prevention composite material according to claim 1, 2, or 3 . 前記繊維強化樹脂シートの繊維目付量は、１００ｇ／ｍ2〜３００ｇ／ｍ2であることを特徴とする請求項４の耐衝撃、飛散防止複合材。 The fiber basis weight of the fiber-reinforced resin sheet, the impact of claim 4 which is a 100g / m 2 ~300g / m 2 , shatterproof composite. 前記繊維強化樹脂シートのマトリックス樹脂は、エポキシ樹脂、ビニールエステル樹脂、不飽和ポリエステル樹脂、ＭＭＡ樹脂、アクリル樹脂、ウレタン樹脂、又は、メラミン樹脂であることを特徴とする請求項１〜５のいずれかの項に記載の耐衝撃、飛散防止複合材。 Matrix resin of the fiber-reinforced resin sheet, epoxy resin, vinyl ester resin, unsaturated polyester resin, MMA resin, acrylic resin, urethane resin, or any one of the preceding claims, characterized in that a melamine resin The impact-resistant and scattering-resistant composite material as described in the section.
JP2004004812A 2004-01-09 2004-01-09 Impact resistant, shatterproof composite Expired - Lifetime JP3903134B2 (en)

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