JP2006002869A - Sandwich panel - Google Patents
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- JP2006002869A JP2006002869A JP2004180587A JP2004180587A JP2006002869A JP 2006002869 A JP2006002869 A JP 2006002869A JP 2004180587 A JP2004180587 A JP 2004180587A JP 2004180587 A JP2004180587 A JP 2004180587A JP 2006002869 A JP2006002869 A JP 2006002869A
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- 229920005989 resin Polymers 0.000 claims abstract description 61
- 239000011347 resin Substances 0.000 claims abstract description 61
- 239000003733 fiber-reinforced composite Substances 0.000 claims abstract description 34
- 238000013016 damping Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000011162 core material Substances 0.000 claims abstract description 23
- 239000011159 matrix material Substances 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 7
- 239000004697 Polyetherimide Substances 0.000 claims description 6
- 229920001601 polyetherimide Polymers 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 229920005992 thermoplastic resin Polymers 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical group C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 3
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 3
- 235000010290 biphenyl Nutrition 0.000 claims description 3
- 239000004305 biphenyl Substances 0.000 claims description 3
- 125000006267 biphenyl group Chemical group 0.000 claims description 3
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 239000009719 polyimide resin Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
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- 239000004677 Nylon Substances 0.000 claims description 2
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- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 229920000180 alkyd Polymers 0.000 claims description 2
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 239000013034 phenoxy resin Substances 0.000 claims description 2
- 229920006287 phenoxy resin Polymers 0.000 claims description 2
- 229920002312 polyamide-imide Polymers 0.000 claims description 2
- 229920005668 polycarbonate resin Polymers 0.000 claims description 2
- 239000004431 polycarbonate resin Substances 0.000 claims description 2
- 229920001225 polyester resin Polymers 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 229920013716 polyethylene resin Polymers 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920005990 polystyrene resin Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 2
- 229920006259 thermoplastic polyimide Polymers 0.000 claims description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 2
- 239000004695 Polyether sulfone Substances 0.000 claims 1
- 229920006393 polyether sulfone Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000000835 fiber Substances 0.000 description 7
- 239000006260 foam Substances 0.000 description 7
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004760 aramid Substances 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 239000002759 woven fabric Substances 0.000 description 4
- 229920006231 aramid fiber Polymers 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- CXVGEDCSTKKODG-UHFFFAOYSA-N sulisobenzone Chemical compound C1=C(S(O)(=O)=O)C(OC)=CC(O)=C1C(=O)C1=CC=CC=C1 CXVGEDCSTKKODG-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 240000007182 Ochroma pyramidale Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229920000690 Tyvek Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- OCWYEMOEOGEQAN-UHFFFAOYSA-N bumetrizole Chemical compound CC(C)(C)C1=CC(C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O OCWYEMOEOGEQAN-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 229920000962 poly(amidoamine) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920007790 polymethacrylimide foam Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical group [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Vibration Prevention Devices (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
本発明は、コア材とその両面に積層して接着された繊維強化複合板状部材とからなる、サンドイッチパネルに関する。 The present invention relates to a sandwich panel comprising a core material and a fiber-reinforced composite plate-like member laminated and bonded on both surfaces thereof.
近年、炭素繊維、ガラス繊維、アラミド繊維等の強化繊維材料は、各種のマトリックス樹脂と複合化され、得られる繊維強化複合材料は種々の分野・用途に広く利用されるようになってきた。例えば、高度の機械的特性や耐熱性等を要求される航空・宇宙分野や、一般産業分野では、従来、不飽和ポリエステル樹脂、エポキシ樹脂、ポリイミド樹脂等のマトリックス樹脂と強化繊維材料とからなる複合材料が使用されてきた。また、これらの樹脂に特殊な振動減衰剤を配合して、制振性の複合材料を得ることも検討されている。
一方、例えば、鉄道、船舶、航空機などの輸送機械の分野での構造材としては、機械的強度の他に軽量化の必要性から、最近、ハニカム構造体等のコア材と繊維強化複合材料を使ったサンドイッチパネルが用いられるようになってきた。特に、航空機のエンジンの大きな騒音を防止するために、エンジンをカバーするエンジンナセルと称する部分に、吸音パネルとして、吸音性能を有するハニカムサンドイッチ構造体が用いられており、このハニカムサンドイッチ構造体の片方の平板（板状部材）には、多数の孔を有する多孔板が使用され、ホルムヘルツ型共鳴器の原理で吸音効果を発揮させている。そして、ここでも、従来のアルミニウム合金製のものに代えて、繊維強化複合材料を使ったサンドイッチパネル、特にハニカムサンドイッチパネルの採用が検討されている。
しかしながら、輸送機械の分野では、繊維強化複合材料に優れた機械的特性が必要なことは当然として、更に、軽量化への要請も非常に強いものがあり、従来の繊維強化複合材料を使ったサンドイッチパネルでは、必ずしも十分に騒音防止等の目的を達成することができず、より吸音効果等の優れた複合材料の開発が望まれていた。 However, in the field of transportation machinery, it is natural that fiber reinforced composite materials need excellent mechanical properties, and there are also very strong demands for weight reduction, and conventional fiber reinforced composite materials were used. In the sandwich panel, it is not always possible to sufficiently achieve the purpose such as noise prevention, and it has been desired to develop a composite material having a more excellent sound absorption effect.
本発明は、軽量で機械的特性に優れ、しかも優れた吸音効果等を有する、コア材と繊維強化複合材料を用いた、サンドイッチパネルを提供することを目的とする。特に、騒音が問題となる航空機等の輸送機械の分野で使用される、ハニカム吸音パネルを提供することを目的とする。 An object of the present invention is to provide a sandwich panel using a core material and a fiber-reinforced composite material that is lightweight, excellent in mechanical properties, and has an excellent sound absorption effect. In particular, an object of the present invention is to provide a honeycomb sound-absorbing panel used in the field of transport machines such as aircraft, where noise is a problem.
本発明の目的の一つは、コア材とその両面に積層して接着された繊維強化複合板状部材とからなるサンドイッチパネルにおいて、該繊維強化複合板状部材の少なくとも一つが、強化繊維材料と有機系振動減衰剤を配合したマトリックス樹脂とからなる、制振性複合板状部材であることを特徴とするサンドイッチパネルによって達成することができる。 One of the objects of the present invention is a sandwich panel composed of a core material and a fiber-reinforced composite plate-like member laminated and bonded on both surfaces thereof, wherein at least one of the fiber-reinforced composite plate-like members is a reinforcing fiber material. This can be achieved by a sandwich panel characterized by being a vibration-damping composite plate-like member comprising a matrix resin containing an organic vibration damping agent.
本発明の他の目的は、ハニカム構造体と該構造体の両面に積層して接着された繊維強化複合板状部材とからなるハニカムサンドイッチパネルからなり、該繊維強化複合板状部材の少なくとも一つが、強化繊維材料と有機系振動減衰剤を配合したマトリックス樹脂とからなる制振性複合板状部材であり、該繊維強化複合板状部材の少なくとも一つには、ハニカムのセルにそれぞれ貫通する多数の細孔が設けられていることを特徴とする、特に航空機エンジンナセル用に好ましく用いられる、ハニカム吸音パネルによって達成される。 Another object of the present invention is a honeycomb sandwich panel comprising a honeycomb structure and a fiber reinforced composite plate-like member laminated and bonded to both surfaces of the structure, and at least one of the fiber-reinforced composite plate-like members is A vibration-damping composite plate-like member comprising a reinforcing fiber material and a matrix resin containing an organic vibration damping agent, and at least one of the fiber-reinforced composite plate-like members includes a plurality of penetrating through the honeycomb cells. This is achieved by a honeycomb sound-absorbing panel, which is preferably used for aircraft engine nacelles.
本発明で得られる、軽量で機械的特性に優れ、しかも優れた吸音効果を有する繊維強化複合材料を用いたサンドイッチパネル、あるいはハニカム吸音パネルは、一般産業分野や輸送機械の分野での吸音材等として利用することができる。そして、特に、航空機の、エンジンナセル用の吸音パネルとして利用することができる。 A sandwich panel using a fiber reinforced composite material that is lightweight and excellent in mechanical properties and has an excellent sound absorbing effect obtained by the present invention, or a honeycomb sound absorbing panel is a sound absorbing material in the general industrial field or the field of transport machinery, etc. Can be used as And it can utilize as an acoustic panel for engine nacelles of an aircraft especially.
本発明のサンドイッチパネルは、コア材とその両面に積層して接着された繊維強化複合板状部材とからなるサンドイッチパネルにおいて、該繊維強化複合板状部材の少なくとも一つが、強化繊維材料と有機系振動減衰剤を配合したマトリックス樹脂とからなる、制振性複合板状部材であることを特徴とするものである。 The sandwich panel of the present invention is a sandwich panel comprising a core material and a fiber reinforced composite plate-like member laminated and bonded on both sides thereof, wherein at least one of the fiber-reinforced composite plate-like members is composed of a reinforcing fiber material and an organic system. It is a vibration-damping composite plate-like member made of a matrix resin containing a vibration damping agent.
本発明において用いられるコア材としては、発砲コア材、ハニカム構造体、バルサ材等が挙げられる。コア材の厚さは、サンドイッチパネルの用途等により適宜選択するものであるが、５〜２００ｍｍ程度が好ましい。発泡コアの材質としては、ウレタンフォーム、塩化ビニルフォーム、ポリメタアクリルイミドフォーム、アクリルフォーム、フェノールフォーム、ポリスチレンフォーム等が例示できる。 Examples of the core material used in the present invention include a foam core material, a honeycomb structure, and a balsa material. The thickness of the core material is appropriately selected depending on the use of the sandwich panel, but is preferably about 5 to 200 mm. Examples of the material for the foam core include urethane foam, vinyl chloride foam, polymethacrylimide foam, acrylic foam, phenol foam, and polystyrene foam.
本発明において、ハニカム構造体は特に好ましく用いられるが、ハニカム構造体としては、六角形の小部屋（セル）の集合体となっているものが一般的であるが、本発明のハニカム構造体においては、ハニカムの形は、六角、ＯＸ、フレックス、バイセクト、フェザー等どのようなものでも構わない。また、その材料も特に制限はなく、最終用途に応じて、紙、アルミニウム等の金属、アラミドペーパー、繊維強化複合材料等を用いることができる。ハニカム構造材として、強化繊維材料と、有機系振動減衰剤を配合したマトリックス樹脂とからなる制振性複合材を用いても良い。 In the present invention, the honeycomb structure is particularly preferably used. However, the honeycomb structure is generally an aggregate of hexagonal chambers (cells). In the honeycomb structure of the present invention, however, The honeycomb may have any shape such as hexagon, OX, flex, bisecto, and feather. The material is not particularly limited, and a metal such as paper or aluminum, an aramid paper, a fiber reinforced composite material, or the like can be used depending on the end use. As the honeycomb structure material, a damping composite material including a reinforcing fiber material and a matrix resin containing an organic vibration damping agent may be used.
本発明において、コア材の両面には、繊維強化複合材の板状の部材が、積層して接着されてサンドイッチパネルを構成する。この複合材に用いられる強化繊維材料としては、無機繊維、有機繊維、金属繊維又はそれらの混合からなる繊維材料がある。具体的には、無機繊維としては、炭素繊維、黒鉛繊維、ガラス繊維を挙げることが出来る。有機繊維としては、アラミド繊維、高密度ポリエチレン繊維、ポリアミド繊維、ポリエステル繊維が挙げられる。好ましいのは、炭素繊維とアラミド繊維である。本発明において、サンドイッチパネルを構成する繊維強化複合板状部材が、シート状のもの（ストランドを一方向に引き揃えたもの、織物・編物、不織布等）を複数枚積層一体化して形成される場合には、複数のシート状物の一部が、制振性複合板状部材であっても良い。 In the present invention, plate-like members of fiber reinforced composite material are laminated and bonded to both surfaces of the core material to constitute a sandwich panel. As the reinforcing fiber material used for this composite material, there are fiber materials made of inorganic fibers, organic fibers, metal fibers, or a mixture thereof. Specifically, examples of the inorganic fiber include carbon fiber, graphite fiber, and glass fiber. Examples of organic fibers include aramid fibers, high density polyethylene fibers, polyamide fibers, and polyester fibers. Preference is given to carbon fibers and aramid fibers. In the present invention, the fiber-reinforced composite plate-like member constituting the sandwich panel is formed by laminating and integrating a plurality of sheet-like members (strands arranged in one direction, woven / knitted fabric, non-woven fabric, etc.) Alternatively, some of the plurality of sheet-like materials may be vibration-damping composite plate-like members.
本発明において使用されるマトリックス樹脂は特に限定されず、熱可塑性樹脂、熱硬化性樹脂のいずれでも良く、またこれらの樹脂に通常の硬化剤、酸化防止剤、充填剤、難燃剤、着色剤、帯電防止剤等を配合したものであっても良い。マトリックス樹脂の硬化は、加熱による方法、電子線等の放射線による方法等、公知の方法を採用することができる。熱硬化性樹脂としては、エポキシ樹脂、フェノール樹脂、ビニルエステル樹脂、エポキシアクリレート樹脂、ウレタンアクリレート樹脂、フェノキシ樹脂、アルキド樹脂、ウレタン樹脂から選ばれる１種又は２種以上の混合物が好ましい。また、熱可塑性樹脂としては、ポリエーテルエーテルケトン（ＰＥＥＫ）樹脂、ポリエーテルイミド（ＰＥＩ）樹脂、ポリアクリレート樹脂、ポリスルフォン樹脂、ナイロン樹脂、ポリエステル樹脂、ＡＢＳ樹脂、アクリル樹脂、ポリエチレン樹脂、ポリスチレン樹脂、ポリプロピレン樹脂、ポリ塩化ビニール樹脂、ポリカーボネート樹脂、ボリエーテルスルホン樹脂、ポリアミドイミド樹脂、ポリエーテルイミド樹脂、熱可塑ポリイミド樹脂から選ばれる１種又は２種以上の混合物が好ましい。 The matrix resin used in the present invention is not particularly limited, and any of a thermoplastic resin and a thermosetting resin may be used, and these resins may be used as a normal curing agent, antioxidant, filler, flame retardant, colorant, What mix | blended antistatic agent etc. may be used. The matrix resin can be cured by a known method such as a method using heating or a method using radiation such as an electron beam. The thermosetting resin is preferably one or a mixture of two or more selected from epoxy resins, phenol resins, vinyl ester resins, epoxy acrylate resins, urethane acrylate resins, phenoxy resins, alkyd resins, and urethane resins. The thermoplastic resins include polyetheretherketone (PEEK) resin, polyetherimide (PEI) resin, polyacrylate resin, polysulfone resin, nylon resin, polyester resin, ABS resin, acrylic resin, polyethylene resin, polystyrene resin. One or a mixture of two or more selected from polypropylene resins, polyvinyl chloride resins, polycarbonate resins, polysulfone resins, polyamideimide resins, polyetherimide resins, and thermoplastic polyimide resins is preferable.
本発明において、複合部材に制振性と防音性を付与するためにマトリックス樹脂に配合される有機系振動減衰剤は、ベンゾチアジル基を有する化合物、ベンゾトリアゾール基を有する化合物、ジフェニルアクリレート基を有する化合物、及びベンゾフェノン基を有する化合物の中から選ばれた１種又は２種以上の混合物である。ベンゾチアジル基を有する化合物としては、例えば、Ｎ，Ｎ−ジシクロヘキシルベンゾチアジル−２−スルフェンアミド（ＤＣＨＢＳＡ）、２−メルカプトベンゾチアゾール（ＭＢＴ）、ジベンゾチアジルスルフィド（ＭＢＴＳ）、Ｎ−シクロヘキシルベンゾチアジル−２−スルフェンアミド（ＣＢＳ）、Ｎ−tert−ブチルベンゾチアジル−２−スルフェンアミド、Ｎ−オキシジエチレンベンゾチアジル−２−スルフェンアミド、Ｎ，Ｎ−ジイソプロピルベンゾチアジル−２−スルフェンアミドがある。ベンゾトリアゾール基を有する化合物としては、例えば、２−{２’−ハイドロキシ−３’−（３’’，４’’，５’’，６’’−テトラハイドロフタリミデメチル）−５’−メチルフェニル}−ベンゾトリアゾール（２ＨＰＭＭＢ）、２−{２’−ハイドロキシ−５’−メチルフェニル}−ベンゾトリアゾール（２ＨＭＰＢ）、２−{２’−ハイドロキシ−３’−ｔ−ブチル−５’−メチルフェニル}−５−クロロベンゾトリアゾール（２ＨＢＭＰＣＢ）、２−{２’−ハイドロキシ−３’，５’−ジ−ｔ−ブチルフェニル−５−クロロベンゾトリアゾール（２ＨＤＢＰＣＢ）がある。ジフェニルアクリレート基を有する化合物としては、例えば、エチル−２−シアノ−３，３−ジ−フェニルアクリレートがある。ベンゾフェノン基を有する化合物としては、例えば、２−ハイドロキシ−４−メトキシベンゾフェノン（ＨＭＢＰ）、２−ハイドロキシ−４−メトキシベンゾフェノン−５−スルフォニックアシド（ＨＭＢＰＳ）がある。これらは単独であるいは２種以上混合して用いることができる。 In the present invention, the organic vibration damping agent blended in the matrix resin to impart vibration damping and soundproofing to the composite member is a compound having a benzothiazyl group, a compound having a benzotriazole group, or a compound having a diphenyl acrylate group And a mixture of two or more selected from compounds having a benzophenone group. Examples of the compound having a benzothiazyl group include N, N-dicyclohexylbenzothiazyl-2-sulfenamide (DCHBSA), 2-mercaptobenzothiazole (MBT), dibenzothiazyl sulfide (MBTS), and N-cyclohexylbenzothia. Zir-2-sulfenamide (CBS), N-tert-butylbenzothiazyl-2-sulfenamide, N-oxydiethylenebenzothiazyl-2-sulfenamide, N, N-diisopropylbenzothiazyl-2 -There is sulfenamide. Examples of the compound having a benzotriazole group include 2- {2′-hydroxy-3 ′-(3 ″, 4 ″, 5 ″, 6 ″ -tetrahydrophthalimidemethyl) -5′-. Methylphenyl} -benzotriazole (2HPMMB), 2- {2′-hydroxy-5′-methylphenyl} -benzotriazole (2HMPB), 2- {2′-hydroxy-3′-t-butyl-5′-methyl Phenyl} -5-chlorobenzotriazole (2HBMPCB), 2- {2′-hydroxy-3 ′, 5′-di-t-butylphenyl-5-chlorobenzotriazole (2HDBPCB). Examples of the compound having a diphenyl acrylate group include ethyl-2-cyano-3,3-di-phenyl acrylate. Examples of the compound having a benzophenone group include 2-hydroxy-4-methoxybenzophenone (HMBP) and 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid (HMBPS). These can be used alone or in admixture of two or more.
本発明においては、前記のような有機系振動減衰剤の制振効果や吸音効果をより高めるために、例えば、マイカ鱗片、ガラス片、炭酸カルシウム、硫酸バリウムなどの無機充填材を併用しても良い。その量は、有機系振動減衰剤の量と同量あるいはそれ以下が適当である。 In the present invention, in order to further enhance the vibration damping effect and sound absorption effect of the organic vibration damping agent as described above, for example, inorganic fillers such as mica scale pieces, glass pieces, calcium carbonate, and barium sulfate may be used in combination. good. The amount is suitably equal to or less than the amount of the organic vibration damping agent.
マトリックス樹脂に配合される有機系振動減衰剤の量は、有機系振動減衰剤の配合率が、マトリックス樹脂に対して１〜１００重量％となる範囲が適当であり、好ましくは５〜５０重量％の範囲である。１重量％未満の場合には、制振・吸音効果が十分でなく、１００重量％を超えると、複合部材の機械的特性に悪影響を与える場合があるので、好ましくない。また、前記のような量の有機系振動減衰剤を配合したマトリックス樹脂の、繊維強化複合板状部材中の含有率は、１０〜７０重量％の範囲にあるのが適当で、好ましくは２０〜５０重量％である。 The amount of the organic vibration damping agent blended in the matrix resin is suitably in a range where the blending ratio of the organic vibration damping agent is 1 to 100% by weight, preferably 5 to 50% by weight, based on the matrix resin. Range. If the amount is less than 1% by weight, the vibration damping / sound absorption effect is not sufficient, and if it exceeds 100% by weight, the mechanical properties of the composite member may be adversely affected. The content of the matrix resin containing the organic vibration damping agent in the amount as described above in the fiber-reinforced composite plate-like member is suitably in the range of 10 to 70% by weight, preferably 20 to 50% by weight.
本発明において、コア材としてハニカム構造体を用いる場合、繊維強化複合板状部材の少なくとも一つに、ハニカムのセルにそれぞれ貫通する多数の細孔を設けると、ホルムヘルツ型共鳴器の原理により、サンドイッチパネルの吸音効果がより向上する。細孔は通常セルに対して一個設けられるが、必ずしも全てのセルに設ける必要はなく、目的に応じて、細孔を設けないセルあるいはセル群があっても良い。ハニカムのセルに貫通する細孔が、セル全体の少なくとも３０％、好ましくは５０％以上のセルに設けられているのが適当である。そして、この様に、ハニカム構造体と該構造体の両面に積層して接着された繊維強化複合板状部材とからなるハニカムサンドイッチパネルからなり、該繊維強化複合板状部材の少なくとも一つが、強化繊維材料と有機系振動減衰剤を配合したマトリックス樹脂とからなる制振性複合板状部材であり、該繊維強化複合板状部材の少なくとも一つには、ハニカムのセルにそれぞれ貫通する多数の細孔が設けられているサンドイッチパネルは、吸音パネルとして優れた性質を有しており、特に騒音が問題になる、航空機エンジンナセル用のハニカム吸音パネルとして好ましく利用される。 In the present invention, when a honeycomb structure is used as the core material, if a large number of pores that penetrate the honeycomb cells are provided in at least one of the fiber-reinforced composite plate-like members, The sound absorption effect of the panel is further improved. Although one pore is usually provided for each cell, it is not always necessary to provide it for all cells, and there may be a cell or a group of cells not provided with a pore depending on the purpose. It is appropriate that the pores penetrating into the cells of the honeycomb are provided in at least 30%, preferably 50% or more of the cells. In this way, it comprises a honeycomb sandwich panel composed of a honeycomb structure and a fiber-reinforced composite plate-like member laminated and bonded on both surfaces of the structure, and at least one of the fiber-reinforced composite plate-like members is reinforced A vibration-damping composite plate-like member comprising a fiber material and a matrix resin containing an organic vibration damping agent. At least one of the fiber-reinforced composite plate-like members has a large number of fine cells penetrating through the honeycomb cells. The sandwich panel provided with holes has excellent properties as a sound absorbing panel, and is preferably used as a honeycomb sound absorbing panel for an aircraft engine nacelle where noise is a problem.
ハニカム吸音パネルを製造する場合、繊維強化複合板状部材に細孔を穿つ方法・手段は、公知の方法・手段を採用することができる。例えば、バンチング加工やドリル加工により孔明けする方法、あるいは、特開２００２−３２１２３８号公報に開示されている、パンチングとその後の離型フィルムとバッグフィルムを用いた真空成形を組合わせた方法、また、特開２００２−３３７０９４号公報に開示されている、未硬化繊維強化樹脂プリプレグ面板に、適当な刃具を用いて樹脂を半硬化させながら孔明けする方法がある。また、ハニカム構造体と繊維強化複合板状部材とからハニカムサンドイッチパネルを製造する方法・手段も、特に限定されるものではなく、例えば、公知の接着剤を用いる方法、接着とマトリックス樹脂の硬化を同時に行う方法を採ることができる。
以下、具体的な実施例により本発明を説明する。
When manufacturing a honeycomb sound-absorbing panel, a known method / means can be adopted as a method / means for forming pores in the fiber-reinforced composite plate-like member. For example, a method of drilling by bunching or drilling, or a method of combining punching and subsequent vacuum forming using a release film and a bag film disclosed in JP-A-2002-321238, or JP-A-2002-337094 discloses a method for forming a hole in an uncured fiber reinforced resin prepreg face plate while semi-curing the resin using an appropriate cutting tool. Further, the method and means for producing a honeycomb sandwich panel from a honeycomb structure and a fiber reinforced composite plate-like member are not particularly limited. For example, a method using a known adhesive, adhesion and curing of a matrix resin are performed. It is possible to take a method that is performed simultaneously.
Hereinafter, the present invention will be described with reference to specific examples.
炭素繊維ＵＴ５００−１２Ｋ（東邦テナックス社製）を使用した平織物（目付３８０ｇ／ｍ２、織密度（経緯糸共に）５．９本／２５ｍｍ）を幅１ｍ、長さ１ｍにカットした。断面が正方形の溝（幅２．０ｍｍ、深さ２．０ｍｍ、ピッチ４０ｍｍ）を両面に彫ったアクリル発泡コア（幅１ｍ、長さ１ｍ、厚さ５ｍｍ）を用意し、離型処理を施したアルミ板上に織物の１plyをコアの溝と織物の経糸が平行になるように、織物／コア／織物の順に配置した。次いで、このアルミ板にシーラントテープと樹脂注入用及び排出用のホースを配置し、積層した材料全体をバギングフィルム（エアテック社製）で覆い密封した。樹脂注入用ホースの口を閉じた後、樹脂排出用ホースから真空ポンプでバギングフィルム内を真空にした。その後、ビニルエステル樹脂であるリポキシＲ−８０６（昭和高分子社製）を１００重量部、硬化剤であるパーメックＮ（日本油脂社製）を１質量部、６％ナフテン酸コバルト（関東化学社製）を０．５重量部、有機系振動減衰剤としてＤＣＨＢＳＡを５重量部を添加配合し、マトリックス樹脂の配合液を作成した。この配合液を２５℃雰囲気下で、樹脂注入用ホースからバギングフィルム内に注入し、硬化させてサンドイッチパネルを得た。バギングフィルム内に注入した配合液は、コアの溝を通って織物全体に速やかに行き渡った。得られたパネルはストランドのコア溝への落ち込みや樹脂の硬化収縮による凹凸がなく、表面平滑性が高いものであった。 A plain fabric (weighing 380 g / m 2 , weave density (both warp yarns) 5.9 / 25 mm) using carbon fiber UT500-12K (manufactured by Toho Tenax Co., Ltd.) was cut into a width of 1 m and a length of 1 m. An acrylic foam core (width 1m, length 1m, thickness 5mm) carved on both sides of a groove with a square cross section (width 2.0mm, depth 2.0mm, pitch 40mm) was prepared and subjected to mold release treatment. On the aluminum plate, 1 ply of the woven fabric was arranged in the order of woven fabric / core / woven fabric so that the core groove and the warp of the woven fabric were parallel. Next, a sealant tape and a resin injection / discharge hose were placed on the aluminum plate, and the entire laminated material was covered with a bagging film (manufactured by Airtech) and sealed. After closing the mouth of the resin injection hose, the bagging film was evacuated with a vacuum pump from the resin discharge hose. Thereafter, 100 parts by weight of Lipoxy R-806 (made by Showa Polymer Co., Ltd.) which is a vinyl ester resin, 1 part by weight of Permec N (made by NOF Corporation) which is a curing agent, 6% cobalt naphthenate (made by Kanto Chemical Co., Inc.) 0.5 parts by weight) and 5 parts by weight of DCHBSA as an organic vibration damping agent were added and mixed to prepare a matrix resin mixture. This compounded solution was poured into a bagging film from a resin injection hose under an atmosphere of 25 ° C. and cured to obtain a sandwich panel. The compounded solution poured into the bagging film quickly spread throughout the fabric through the core groove. The obtained panel had no surface irregularities due to the dropping of the strands into the core groove and the curing shrinkage of the resin, and had high surface smoothness.
ビスフェノールＡ型エポキシ樹脂（低分子量タイプ、ジャパンエポキシレンジン社製エピコート８３４）７０重量部と、ビスフェノールＡ型エポキシ樹脂（高分子量タイプ、ジャパンエポキシレンジン社製ＡＥＲ６００２）３０重量部の混合物に、有機系振動減衰剤としてＤＣＨＢＳＡを混合物に対して５重量％、硬化剤としてポリアミドアミンを混合物に対して７．５重量％添加配合し、マトリックス樹脂を作成した。これを炭素繊維のシート（東邦テナックス社製ＩＭ６００-２４Ｋ、単糸デニール８３０ｔｅｘ、２４００本を引き揃えたもの）（目付１５０ｇ／ｍ２）に、含浸温度１００℃で、溶融含浸法により樹脂含量が３５重量％となるように含浸させ、プリプレグを得た。 A mixture of 70 parts by weight of bisphenol A type epoxy resin (low molecular weight type, Epicoat 834 manufactured by Japan Epoxy Rangen Co., Ltd.) and 30 parts by weight of bisphenol A type epoxy resin (high molecular weight type, Japan Epoxy Rangen Co., Ltd. AER6002) A matrix resin was prepared by adding 5% by weight of DCHBSA as an attenuating agent and 7.5% by weight of polyamidoamine as a curing agent. This is a carbon fiber sheet (IM600-24K manufactured by Toho Tenax Co., Ltd., with 2400 single yarn denier 830tex) (weighing 150 g / m 2 ), impregnation temperature 100 ° C., and resin content by melt impregnation method. A prepreg was obtained by impregnation so as to be 35% by weight.
アラミドペーパー製の六角ハニカム構造体をコア材として、この両面に前記で得られたプリプレグ（１ｍ×１ｍ）をれぞれ２シートずつ積層した。この積層体を、フッ素樹脂フィルムを敷いたアルミニウム板上に乗せ、積層体はナイロンフィルムで真空パックし、１８０℃で２時間オートクレーブ成形を行って、ハニカムサンドイッチパネルを得た。プリプレグとハニカムコアとの接着は、プリプレグを硬化させつつ直接ハニカムコアに接着させた。 A hexagonal honeycomb structure made of aramid paper was used as a core material, and two sheets of the prepreg (1 m × 1 m) obtained above were laminated on both sides. This laminate was placed on an aluminum plate laid with a fluororesin film, the laminate was vacuum packed with a nylon film, and autoclaved at 180 ° C. for 2 hours to obtain a honeycomb sandwich panel. The prepreg and the honeycomb core were bonded directly to the honeycomb core while the prepreg was cured.
次に、前記で得られたハニカムサンドイッチパネルの片方のパネル面に、通常のドリル加工によって、ハニカムの各セルに対応して一個づつ、孔径約２ｍｍの孔を開け、ハニカム吸音パネルを製造した。 Next, a hole having a hole diameter of about 2 mm was formed on one panel surface of the honeycomb sandwich panel obtained as described above, one by one corresponding to each cell of the honeycomb, by a normal drilling process, thereby manufacturing a honeycomb sound absorbing panel.
［比較例１］
有機系振動減衰剤を配合しないで、その他は実施例２と全く同様にしてハニカム吸音パネルを作成した。
[Comparative Example 1]
A honeycomb sound-absorbing panel was prepared in the same manner as in Example 2 except that no organic vibration damping agent was added.
実施例２と比較例１で得られたハニカム吸音パネルを用いて、吸音効果を比較した。それぞれの吸音率を、JIS A 1409に定められている「残響室法吸音率の測定法」に従って測定したところ、殆どの周波数帯域で、実施例２で得られたハニカム吸音パネルの吸音率が、比較例１のものに比べて有意に高くなっていた。 Using the honeycomb sound absorbing panels obtained in Example 2 and Comparative Example 1, the sound absorbing effect was compared. When each sound absorption coefficient was measured in accordance with “Measurement method of reverberation chamber method sound absorption coefficient” stipulated in JIS A 1409, the sound absorption coefficient of the honeycomb sound absorption panel obtained in Example 2 was found in almost all frequency bands. It was significantly higher than that of Comparative Example 1.
本発明で得られるサンドイッチパネルは、軽量で機械的特性に優れ、しかも優れた吸音効果と制振効果を有するので、一般産業分野や輸送機械の分野での吸音材等として利用することができる。そして、特に、航空機の、エンジンナセル用の吸音パネルとして利用することができる。 The sandwich panel obtained by the present invention is lightweight, excellent in mechanical properties, and has an excellent sound absorbing effect and vibration damping effect, so that it can be used as a sound absorbing material in the general industrial field and the field of transport machinery. And it can utilize as an acoustic panel for engine nacelles of an aircraft especially.
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| JP2004180587A JP2006002869A (en) | 2004-06-18 | 2004-06-18 | Sandwich panel |
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Cited By (10)
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| JP2007055162A (en) * | 2005-08-26 | 2007-03-08 | Honda Motor Co Ltd | Molded body of carbon fiber composite material |
| JP2012513914A (en) * | 2008-12-30 | 2012-06-21 | エムアールエイ・システムズ・インコーポレイテッド | Process and apparatus for manufacturing composite structures |
| JP2012126387A (en) * | 2010-12-13 | 2012-07-05 | Boeing Co:The | Improved, green aircraft interior panel |
| WO2015050239A1 (en) * | 2013-10-03 | 2015-04-09 | 横浜ゴム株式会社 | Aircraft interior panel material and manufacturing method therefor |
| JP2016535144A (en) * | 2013-08-01 | 2016-11-10 | コンプネクスト・ソシエタ・ア・レスポンサビリタ・リミタータ | Method for producing composite material product having reinforcing layer and resin |
| US9925728B2 (en) | 2014-01-08 | 2018-03-27 | The Boeing Company | Method of making fire resistant sustainable aircraft interior panels |
| CN109228418A (en) * | 2018-08-02 | 2019-01-18 | 苏州华龙化工有限公司 | A kind of preparation method of noise-proofing interlayer composite panel |
| EP3719793A1 (en) * | 2019-04-05 | 2020-10-07 | Rolls-Royce Corporation | Acoustic panel assembly with reinforced lip |
| JP7024899B1 (en) | 2021-02-16 | 2022-02-24 | 横浜ゴム株式会社 | Sandwich panel molding method |
| WO2022091542A1 (en) | 2020-10-30 | 2022-05-05 | 国立研究開発法人宇宙航空研究開発機構 | Pressure fluctuation absorbing structural body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007055162A (en) * | 2005-08-26 | 2007-03-08 | Honda Motor Co Ltd | Molded body of carbon fiber composite material |
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| JP2012513914A (en) * | 2008-12-30 | 2012-06-21 | エムアールエイ・システムズ・インコーポレイテッド | Process and apparatus for manufacturing composite structures |
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| JP2012126387A (en) * | 2010-12-13 | 2012-07-05 | Boeing Co:The | Improved, green aircraft interior panel |
| JP2016535144A (en) * | 2013-08-01 | 2016-11-10 | コンプネクスト・ソシエタ・ア・レスポンサビリタ・リミタータ | Method for producing composite material product having reinforcing layer and resin |
| WO2015050239A1 (en) * | 2013-10-03 | 2015-04-09 | 横浜ゴム株式会社 | Aircraft interior panel material and manufacturing method therefor |
| US9925728B2 (en) | 2014-01-08 | 2018-03-27 | The Boeing Company | Method of making fire resistant sustainable aircraft interior panels |
| CN109228418A (en) * | 2018-08-02 | 2019-01-18 | 苏州华龙化工有限公司 | A kind of preparation method of noise-proofing interlayer composite panel |
| EP3719793A1 (en) * | 2019-04-05 | 2020-10-07 | Rolls-Royce Corporation | Acoustic panel assembly with reinforced lip |
| US11352953B2 (en) | 2019-04-05 | 2022-06-07 | Rolls-Royce Corporation | Acoustic panel with reinforced lip |
| WO2022091542A1 (en) | 2020-10-30 | 2022-05-05 | 国立研究開発法人宇宙航空研究開発機構 | Pressure fluctuation absorbing structural body |
| JP7024899B1 (en) | 2021-02-16 | 2022-02-24 | 横浜ゴム株式会社 | Sandwich panel molding method |
| WO2022176261A1 (en) * | 2021-02-16 | 2022-08-25 | 横浜ゴム株式会社 | Sandwich panel molding method |
| JP2022124534A (en) * | 2021-02-16 | 2022-08-26 | 横浜ゴム株式会社 | Method for molding sandwich panel |
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