JPH09302106A - Plastic sheet for absorption and insulation of sound and absorption of electric wave containing capsule including magnetic fluid and plastic panel for absorption and insulation of sound and an absorption of electric wave - Google Patents
Plastic sheet for absorption and insulation of sound and absorption of electric wave containing capsule including magnetic fluid and plastic panel for absorption and insulation of sound and an absorption of electric waveInfo
- Publication number
- JPH09302106A JPH09302106A JP8251904A JP25190496A JPH09302106A JP H09302106 A JPH09302106 A JP H09302106A JP 8251904 A JP8251904 A JP 8251904A JP 25190496 A JP25190496 A JP 25190496A JP H09302106 A JPH09302106 A JP H09302106A
- Authority
- JP
- Japan
- Prior art keywords
- plastic sheet
- sound
- sound absorbing
- sheet material
- absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002985 plastic film Substances 0.000 title claims abstract description 56
- 229920003023 plastic Polymers 0.000 title claims abstract description 46
- 239000004033 plastic Substances 0.000 title claims abstract description 46
- 239000002775 capsule Substances 0.000 title claims abstract description 35
- 239000011553 magnetic fluid Substances 0.000 title claims abstract description 34
- 238000010521 absorption reaction Methods 0.000 title description 7
- 238000009413 insulation Methods 0.000 title description 5
- 239000000463 material Substances 0.000 claims abstract description 78
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 29
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 29
- 229920005989 resin Polymers 0.000 claims description 26
- 239000011347 resin Substances 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 14
- 239000004566 building material Substances 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 description 14
- 229920001187 thermosetting polymer Polymers 0.000 description 9
- 239000010419 fine particle Substances 0.000 description 8
- 229920006337 unsaturated polyester resin Polymers 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 6
- 239000012783 reinforcing fiber Substances 0.000 description 6
- 229920005992 thermoplastic resin Polymers 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000003677 Sheet moulding compound Substances 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000005662 Paraffin oil Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920005990 polystyrene resin Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- QLUXVUVEVXYICG-UHFFFAOYSA-N 1,1-dichloroethene;prop-2-enenitrile Chemical compound C=CC#N.ClC(Cl)=C QLUXVUVEVXYICG-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0001—Rooms or chambers
- H05K9/0003—Shielded walls, floors, ceilings, e.g. wallpaper, wall panel, electro-conductive plaster, concrete, cement, mortar
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B2001/925—Protection against harmful electro-magnetic or radio-active radiations, e.g. X-rays
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、磁性流体内包カプ
セルを含有せしめた吸遮音並びに電波吸収用プラスチッ
クシート材、及び特に建築材料の吸遮音化に有用な吸遮
音プラスチックパネル並びに移動体通信等の電磁波遮蔽
に有用な電波吸収用プラスチックパネルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound absorbing / insulating and electromagnetic wave absorbing plastic sheet material containing a magnetic fluid-encapsulating capsule, and particularly to a sound absorbing / insulating plastic panel useful for sound absorbing / insulating building materials and mobile communication. The present invention relates to a radio wave absorbing plastic panel useful for electromagnetic wave shielding.
【０００２】[0002]
【従来の技術】従来、建築物の外壁材、内張材、屋根材
用、或いは高速道路、鉄道路線における防音壁などに、
防音効果を有するプラスチックスパネルが、軽量である
ため、幅広く用いられている。通常、これらは、防音効
果を付与するために、発泡プラスチック、ガラスウール
などの多孔質材料、或いは細かく仕切った中空のセルを
プラスチックパネル内部に持たせたものなどが用いられ
ている。しかし、これら多孔質化し中空セル構造にした
ものは、いずれも低中音域（１００〜２００Ｈｚ）にお
ける吸遮音効果が乏しく、広範囲の音域に対する吸遮音
効果は得られないという問題がある。又、主として連続
孔を有するため、局部荷重に対する抵抗性に劣り、機械
的強度が不十分という問題もある。2. Description of the Related Art Conventionally, for exterior wall materials, lining materials, roof materials for buildings, soundproof walls for highways and railways,
Plastic panels having a soundproof effect are widely used because of their light weight. Usually, in order to impart a soundproofing effect, a porous material such as foamed plastic or glass wool, or one having a finely divided hollow cell inside a plastic panel is used. However, all of these porous and hollow cell structures have a problem that the sound absorbing / insulating effect in a low and middle sound range (100 to 200 Hz) is poor, and the sound absorbing / insulating effect in a wide sound range cannot be obtained. Further, since it mainly has continuous holes, there is a problem that the resistance to local load is poor and the mechanical strength is insufficient.
【０００３】低中音域に対する防音用としては、例え
ば、特開昭５３ー７２３１３号公報には、サンドイッチ
状のパネルの内部空間に砂の粒子を充填した防音パネル
が開示されている。しかし、この方法で防音特性を十分
に発揮するためには、パネルの内部空間に隙間なく密
に、砂粒子を充填するのが困難であり、また砂には重量
があるので、軽量化するのが困難という問題がある。[0003] As a soundproof for the low and middle tone range, for example, Japanese Patent Laid-Open No. 53-72313 discloses a soundproof panel in which the inner space of a sandwich-shaped panel is filled with sand particles. However, in order to fully exhibit the soundproofing property by this method, it is difficult to densely fill the inner space of the panel with the sand particles, and since the sand has a heavy weight, it is necessary to reduce the weight. There is a problem that it is difficult.
【０００４】また、特開平５−２７９５６９号公報に
は、特定の圧力伝達性を有するシリコンゲル中にアルミ
ノシリケートなどの無機材料で作られた中空微小球体を
混人した防振材が開示されているが、１００Ｈｚ以下の
防振・制振を目的にするもので、吸遮音性に関する教示
はない。Japanese Unexamined Patent Publication (Kokai) No. 5-279569 discloses a vibration damping material in which hollow microspheres made of an inorganic material such as aluminosilicate are mixed in a silicon gel having a specific pressure transmission property. However, there is no teaching regarding sound absorption / insulation, because it is intended for vibration and damping at 100 Hz or less.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、懸かる課題
を解決して、建築物用、防音壁用として低中音域におい
ても優れた吸遮音効果を有する軽量のプラスチックシー
ト材、及びそれを用いた吸遮音プラスチックパネルを提
供することを目的としている。DISCLOSURE OF THE INVENTION The present invention solves the problem to be solved, and is a lightweight plastic sheet material having excellent sound absorbing / insulating effect even in the low and middle tone range for buildings and soundproof walls, and the use thereof. The purpose is to provide a sound absorbing and insulating plastic panel.
【０００６】[0006]
【課題を解決するための手段】即ち、本発明、プラスチ
ックシート状物に磁性流体内包カプセルを含有せしめた
ことを特徴とする吸遮音プラスチックシート材に関す
る。磁性流体内包カプセルを、プラスチックシート状物
の内部に含有させることにより、カプセル外殻に伝わっ
た外部からの音エネルギーが、カプセル内の磁性流体中
の磁性体微粒子によって、振動エネルギーに変換され、
優れた吸遮音効果が得られる。しかも、磁性体微粒子は
カプセル外殻に比べその質量が大であるので一層効果が
大きいものとなり、低中音域においても吸遮音効果がよ
い吸遮音プラスチックシート材となる。That is, the present invention relates to a sound-absorbing and sound-insulating plastic sheet material characterized in that a magnetic fluid-containing capsule is contained in a plastic sheet-like material. By containing the magnetic fluid-containing capsule in the plastic sheet-like material, the sound energy from the outside transmitted to the capsule outer shell is converted into vibration energy by the magnetic fine particles in the magnetic fluid in the capsule,
Excellent sound absorption and insulation effect can be obtained. Moreover, since the magnetic fine particles have a larger mass than the outer shell of the capsule, the effect is further enhanced, and the sound absorbing / insulating plastic sheet material has a good sound absorbing / insulating effect even in the low and middle tone range.
【０００７】又、この吸遮音プラスチックシート材の少
なくとも片面に繊維強化プラスチックシートを固着する
ことにより、吸遮音プラスチックパネルは、機械的強
度、剛性が得られ、更に繊維強化プラスチックシートを
一体成形した吸遮音プラスチックパネルは、剥離しにく
い、耐久性もあるという利点が得られる。Further, by fixing the fiber reinforced plastic sheet to at least one surface of the sound absorbing / insulating plastic sheet material, the sound absorbing / insulating plastic panel can obtain mechanical strength and rigidity, and further, the sound absorbing / insulating plastic sheet is formed by integrally molding the fiber reinforced plastic sheet. The sound-insulating plastic panel has the advantages that it is difficult to peel and has durability.
【０００８】[0008]
【発明の実施の形態】本発明の吸遮音プラスチックシー
ト材は、プラスチックシート状物に磁性流体内包カプセ
ルを含有せしめたものである。ここに磁性流体は磁性体
微粒子を有機溶媒に分散させたものであり、カプセルは
その外殻がビニル系樹脂で例示されるプラスチック膜か
らなるものである。磁性流体内包カプセルとしては、フ
ェライトの微粒子を有機溶媒に分散させた磁性流体を内
包し、外殻がビニル系樹脂であるものが好ましい。BEST MODE FOR CARRYING OUT THE INVENTION The sound absorbing / insulating plastic sheet material of the present invention is a plastic sheet material containing a magnetic fluid-containing capsule. Here, the magnetic fluid is one in which magnetic fine particles are dispersed in an organic solvent, and the capsule has an outer shell made of a plastic film exemplified by a vinyl resin. The magnetic fluid-containing capsule is preferably a capsule containing a magnetic fluid in which fine ferrite particles are dispersed in an organic solvent, and the outer shell of which is a vinyl resin.
【０００９】又、吸遮音プラスチックパネルは、吸遮音
プラスチックシート材の少なくとも片面に繊維強化プラ
スチックを固着したものとすることができる。更に、吸
遮音プラスチックパネルは、吸遮音プラスチックシート
材の少なくとも片面に繊維強化プラスチックシートを一
体成形したものとすることができる。The sound absorbing / insulating plastic panel may be a sound absorbing / insulating plastic sheet material having a fiber reinforced plastic fixed to at least one surface thereof. Further, the sound absorbing / insulating plastic panel may be formed by integrally molding a fiber reinforced plastic sheet on at least one surface of the sound absorbing / insulating plastic sheet material.
【００１０】本発明の吸遮音シート材及び吸遮音プラス
チックパネルを、図面により例示して説明する。図１は
本発明の吸遮音プラスチックシート材の１例の概略断面
図である。なお本発明の電波吸収用プラスチックシート
材及び電波吸収用プラスチックパネルは、吸遮音プラス
チックシート材及び吸遮音プラスチックパネルと全く同
様に得ることができる。図１において、吸遮音プラスチ
ックシート材１は、プラスチックシート状物３に磁性流
体内包カプセル２を含有せしめたものである。プラスチ
ックシート状物３とは、プラスチック製のシート状物で
ある。そのプラスチックスの種類としては、約２０〜１
００℃好ましくは、４０〜６０℃の比較的低温でその中
に磁性流体内包カプセル２を混入させ成形できるもので
あれば格別制限はなく、熱硬化性タイプ、熱可塑性タイ
プのいずれでもよい。例えば、不飽和ポリエステル樹
脂、フェノール樹脂、エポキシ樹脂、ビニルエステル樹
脂、メラミン樹脂、尿素樹脂、などの熱硬化性樹脂、又
は飽和ポリエステル樹脂、ポリエチレン樹脂、ポリプロ
ピレン樹脂、ポリアミド樹脂、ポリ塩化ビニル樹脂ポリ
塩化ビニリデン樹脂、ポリスチレン樹脂、アクリル樹脂
などの熱可塑性樹脂からなるプラスチックであればよ
く、好ましくは、不飽和ポリエステル樹脂があげられ
る。無論、これらのプラスチックと、例えばガラス繊
維、炭素繊維、アラミド繊維などの補強繊維とを組み合
わせて繊維強化プラスチックとしたシート状物であって
もよい。The sound absorbing / insulating sheet material and the sound absorbing / insulating plastic panel of the present invention will be described with reference to the drawings. FIG. 1 is a schematic sectional view of an example of a sound absorbing and sound insulating plastic sheet material of the present invention. The radio wave absorbing plastic sheet material and the radio wave absorbing plastic panel of the present invention can be obtained in exactly the same manner as the sound absorbing / insulating plastic sheet material and the sound absorbing / insulating plastic panel. In FIG. 1, a sound absorbing / insulating plastic sheet material 1 is a plastic sheet material 3 containing a magnetic fluid-containing capsule 2. The plastic sheet-like material 3 is a plastic sheet-like material. The type of plastics is about 20 to 1
There is no particular limitation as long as it can be molded by mixing the magnetic fluid-containing capsule 2 therein at a relatively low temperature of 00 ° C., preferably 40 to 60 ° C., and may be a thermosetting type or a thermoplastic type. For example, thermosetting resin such as unsaturated polyester resin, phenol resin, epoxy resin, vinyl ester resin, melamine resin, urea resin, or saturated polyester resin, polyethylene resin, polypropylene resin, polyamide resin, polyvinyl chloride resin polychlorine Any plastic can be used as long as it is made of a thermoplastic resin such as vinylidene resin, polystyrene resin or acrylic resin, and unsaturated polyester resin is preferable. Needless to say, it may be a sheet-like material which is a fiber-reinforced plastic obtained by combining these plastics with reinforcing fibers such as glass fibers, carbon fibers and aramid fibers.
【００１１】プラスチックシート状物３の厚さは、特に
制限はなく、求められる建築材料の用途、種類に応じて
適宜決定されるが、０．０５〜１００ｍｍが好ましい。The thickness of the plastic sheet material 3 is not particularly limited and may be appropriately determined depending on the desired use and type of the building material, but is preferably 0.05 to 100 mm.
【００１２】プラスチックシート状物３に含有せしめる
磁性流体内包カプセル２は、５〜２００ｎｍのフェライ
ト、マグネタイトなどの磁性体微粒子をｎ−ヘキサン、
パラフィン油などの炭化水素系の有機溶媒に分散させた
流体物を内包し、塩化ビニリデン樹脂、塩化ビニル樹
脂、アクリルニトリル樹脂など単独又はこれらの共重合
物の外殻からなるものを用いることができる。又、磁性
流体内包カプセル２の内部は、磁性体微粒子の分散液状
物と中空空間とからなるが、磁性体微粒子の分散液状物
の占める容積は通常、１〜３０重量％、好ましくは１０
〜１５重量％であって、カプセルの平均粒径は、５〜１
００μｍ、好ましくは１００〜２００μｍのものを使用
することができる。該磁性体微粒子の分散液状物の占め
る容積が１％未満の場合は、吸遮音効果が十分でなかっ
たり、逆には３０％を超えると磁性流体内包カプセルの
作成が困難になる場合がある。The magnetic fluid-containing capsule 2 contained in the plastic sheet material 3 is made of magnetic fine particles such as ferrite and magnetite having a particle size of 5 to 200 nm and n-hexane.
It is possible to enclose a fluid substance dispersed in a hydrocarbon organic solvent such as paraffin oil and use vinylidene chloride resin, vinyl chloride resin, acrylonitrile resin, etc., alone or as an outer shell of a copolymer thereof. . The interior of the magnetic fluid-containing capsule 2 is composed of a dispersion liquid of magnetic fine particles and a hollow space, and the volume occupied by the dispersion liquid of magnetic fine particles is usually 1 to 30% by weight, preferably 10%.
~ 15 wt% and the average particle size of the capsule is 5-1
Those having a diameter of 00 μm, preferably 100 to 200 μm can be used. If the volume occupied by the dispersion liquid of the magnetic fine particles is less than 1%, the sound absorbing / insulating effect may be insufficient, or conversely, if it exceeds 30%, it may be difficult to produce a magnetic fluid-containing capsule.
【００１３】磁性流体内包カプセル２のプラスチックシ
ート状物３に対する含有率は、特に制限はないが、通常
３０〜９０重量％、好ましくは４０〜５０重量％であ
る。３０％未満であると吸遮音効果が少なすぎ、９０％
を超えるとシート状物とするのが困難であったりする場
合がある。The content of the magnetic fluid-containing capsule 2 in the plastic sheet-like material 3 is not particularly limited, but is usually 30 to 90% by weight, preferably 40 to 50% by weight. If it is less than 30%, the sound absorption / insulation effect is too small, and 90%
If it exceeds, it may be difficult to form a sheet.
【００１４】プラスチックシート状物３を磁性流体内包
カプセル２を含有させるには、プラスチックが熱硬化性
樹脂であれば、液状の熱硬化性樹脂（未硬化）に、磁性
流体内包カプセル２の所定量を加え、シート状の形態に
半硬化または硬化成形すればよい。熱可塑性樹脂であれ
ば、熱可塑性樹脂のペレットと磁性流体内包カプセル２
とを加熱溶融しながら混練して、シート状に成形すれば
よい。熱硬化性樹脂を用いると、吸遮音プラスチックシ
ート材の少なくとも片側に繊維強化プラスチックシート
を固着した吸遮音プラスチックパネルを容易に一体成形
して得ることができ、又比較的耐熱性の良いなシート材
が得られる。一方、熱可塑性樹脂を用いるとシート材の
成形が容易であり、また、比較的柔軟なシート材が得ら
れるので、取り扱いが容易である。このとき、適宜、内
部が中空のガラスバルーン、シラスバルーンや（磁性流
体を内包しない）プラスチックバルーンなどのマイクロ
バルーン、或いは炭酸カルシウム、鉄粉、珪砂、顔料な
ど公知の改質材を添加することもできる。例えば、ガラ
スバルーンを用いることによって、よりプラスチックシ
ート状材の軽量化や吸遮音特性、更に耐熱性を補うこと
もできる。In order to contain the magnetic fluid-containing capsule 2 in the plastic sheet material 3, if the plastic is a thermosetting resin, a predetermined amount of the magnetic fluid-containing capsule 2 is added to the liquid thermosetting resin (uncured). Then, it may be semi-cured or cured into a sheet form. If it is a thermoplastic resin, the pellet of the thermoplastic resin and the magnetic fluid-containing capsule 2
And may be kneaded while heating and melting to form a sheet. When a thermosetting resin is used, a sound absorbing / insulating plastic panel in which a fiber reinforced plastic sheet is fixed to at least one side of the sound absorbing / insulating plastic sheet material can be easily integrally formed, and the sheet material has relatively good heat resistance. Is obtained. On the other hand, when a thermoplastic resin is used, the sheet material can be easily molded, and a relatively flexible sheet material can be obtained, so that it is easy to handle. At this time, microballoons such as glass balloons having hollow interiors, shirasu balloons and plastic balloons (which do not contain magnetic fluid), or known modifiers such as calcium carbonate, iron powder, silica sand, and pigments may be added. it can. For example, by using a glass balloon, it is possible to further reduce the weight of the plastic sheet-like material, the sound absorbing / insulating characteristics, and the heat resistance.
【００１５】図２は、本発明の吸遮音プラスチックパネ
ルの製造方法の１例を示す概略断面図である。吸遮音プ
ラスチックシート材１の少なくとも片面（図２は片面に
なっている）に、繊維強化プラスチックシート７を固着
するには、１）一体成形しながら同時に成形する。２）
接着剤（例えばエポキシ系接着剤）を塗布して接着、貼
り付けを行う。３）釘、ボルトなどで固定するなどの方
法によって行うことができる。吸遮音プラスチックシー
ト材１の少なくとも片面（図２は片面）に、繊維強化プ
ラスチック４を一体成形するには、例えば、１）マトリ
ックス樹脂が熱可塑性樹脂である吸遮音プラスチックシ
ート材１を、金型内に戴置して、予備加熱した後、その
上にシートモールディングコンパウンドなどの繊維強化
プラスチック材料を積層して加熱硬化する。２）マトリ
ックス樹脂が熱硬化性樹脂である吸遮音プラスチックシ
ート材１と補強繊維を金型内に戴置して、金型内に設け
られた注入口より、不飽和ポリエステル樹脂のような熱
硬化性樹脂を注入、硬化して、一体物を得る。など一般
に繊維強化プラスチック（ＦＲＰ）の成形に利用される
公知の成形法によって得ることができる。又、吸遮音プ
ラスチックシート材１の両面に、繊維強化プラスチック
４を一体成形する場合にも、前記の方法に準じて、最上
部に繊維強化プラスチック４材料を更に積層して成形す
ればよい。FIG. 2 is a schematic cross-sectional view showing an example of a method of manufacturing the sound absorbing and sound insulating plastic panel of the present invention. To fix the fiber reinforced plastic sheet 7 on at least one surface (one surface in FIG. 2) of the sound absorbing / insulating plastic sheet material 1) 1) Simultaneous molding while integrally molding. 2)
An adhesive (for example, an epoxy-based adhesive) is applied to adhere and adhere. 3) It can be performed by a method such as fixing with nails or bolts. To integrally mold the fiber reinforced plastic 4 on at least one surface (one surface in FIG. 2) of the sound absorbing / insulating plastic sheet material 1, for example, 1) mount the sound absorbing / insulating plastic sheet material 1 in which the matrix resin is a thermoplastic resin into a mold. After being placed inside and preheated, a fiber reinforced plastic material such as a sheet molding compound is laminated thereon and heat cured. 2) The sound absorbing / insulating plastic sheet material 1 in which the matrix resin is a thermosetting resin and the reinforcing fiber are placed in a mold, and thermosetting like an unsaturated polyester resin is performed through an injection port provided in the mold. The resin is injected and cured to obtain an integral body. It can be obtained by a known molding method generally used for molding fiber reinforced plastic (FRP). Also, when the fiber reinforced plastic 4 is integrally formed on both surfaces of the sound absorbing / insulating plastic sheet material 1, the fiber reinforced plastic 4 material may be further laminated and formed on the uppermost portion according to the above method.
【００１６】又、片面及び両面に、繊維強化プラスチッ
クを一体成形した吸遮音プラスチックパネルの繊維強化
プラスチック部の片面の厚みは、特に制限はないが、
１．０〜１０．０ｍｍが好ましく用いることができる。The thickness of one side of the fiber reinforced plastic portion of the sound absorbing and sound insulating plastic panel in which the fiber reinforced plastic is integrally molded on one side and both sides is not particularly limited.
1.0-10.0 mm can be preferably used.
【００１７】吸遮音プラスチックシート材１に固着させ
る場合の繊維強化プラスチック４の補強繊維５として
は、公知の補強繊維、例えばガラス繊維、炭素繊維、ア
ラミド繊維、ボロン繊維などを用いることができるが、
特にガラス繊維は、その性質、価格等を考慮すれば、好
ましい。ガラス繊維を使用する場合は、繊維径３〜２０
μｍのものを使用するとよい。Known reinforcing fibers such as glass fiber, carbon fiber, aramid fiber and boron fiber can be used as the reinforcing fiber 5 of the fiber reinforced plastic 4 when fixed to the sound absorbing / insulating plastic sheet material 1.
Particularly, glass fiber is preferable in view of its properties, price and the like. When using glass fibers, the fiber diameter is 3 to 20.
It is recommended to use the one with μm.
【００１８】又、繊維強化プラスチック４のマトリック
スとなる樹脂６も、熱硬化性、熱可塑性に拘わらず、任
意であり、例えば不飽和ポリエステル樹脂、フェノール
樹脂、エポキシ樹脂、ビニルエステル樹脂、メラミン樹
脂、尿素樹脂などの熱硬化性樹脂、或いは飽和ポリエス
テル樹脂、ポリエチレン樹脂、ポリプロピレン樹脂、ポ
リアミド樹脂、ポリ塩化ビニル樹脂、ポリスチレン樹
脂、アクリル樹脂などの熱可塑性樹脂を用いることがで
きる。繊維強化プラスチック４における補強繊維５の含
有率は、任意であるが１５〜８０重量％が好ましい。１
５％重量未満であると、強度不足であったり、８０％重
量を超えると繊維強化プラスチックの成形が困難になる
場合がある。The resin 6 which is the matrix of the fiber reinforced plastic 4 is also optional regardless of thermosetting or thermoplasticity, and examples thereof include unsaturated polyester resin, phenol resin, epoxy resin, vinyl ester resin, melamine resin, A thermosetting resin such as a urea resin or a thermoplastic resin such as a saturated polyester resin, a polyethylene resin, a polypropylene resin, a polyamide resin, a polyvinyl chloride resin, a polystyrene resin or an acrylic resin can be used. The content of the reinforcing fiber 5 in the fiber reinforced plastic 4 is arbitrary, but is preferably 15 to 80% by weight. 1
If it is less than 5% by weight, the strength may be insufficient, and if it exceeds 80% by weight, molding of the fiber-reinforced plastic may be difficult.
【００１９】[0019]
【実施例】次に、本発明の吸遮音プラスチックシート材
及び吸遮音プラスチックパネルを具体的に実施し、その
評価を行った。下記の例においては、磁性流体内包カプ
セル２として、フェライトの微粒子（平均径１００×１
０−８）を有機溶媒としてパラフィン油に分散させ、外
殻を塩化ビニリデン−アクリロニトリル樹脂とした平均
粒径３６μｍの磁性流体内包カプセル２を使用し、これ
を用いて各の方法でプラスチックスシート材を製造し
た。得られた吸遮音プラスチックシート材及び吸遮音プ
ラスチックパネルの吸遮音特性の評価は、ＪＩＳ Ａ
１４１６に基づき、中心周波数１２５Ｈｚ、５００Ｈ
ｚ、１０００Ｈｚ、２０００Ｈｚにおける音響透過損失
を測定することによって行った。その結果を表１に示
す。EXAMPLES Next, the sound absorbing and insulating plastic sheet material and the sound absorbing and insulating plastic panel of the present invention were concretely implemented and evaluated. In the following example, as the magnetic fluid-containing capsule 2, ferrite fine particles (average diameter 100 × 1
0-8) was dispersed in paraffin oil as an organic solvent, and the outer shell was a vinylidene chloride-acrylonitrile resin, and a magnetic fluid-containing capsule 2 having an average particle diameter of 36 μm was used. Was manufactured. The sound absorbing and insulating plastic sheet material and the sound absorbing and insulating plastic panel thus obtained are evaluated according to JIS A
Based on 1416, center frequency 125Hz, 500H
This was done by measuring the sound transmission loss at z, 1000 Hz, 2000 Hz. Table 1 shows the results.
【００２０】実施例１ 不飽和ポリエステル樹脂に、磁性流体内包カプセル２を
３０重量％混練させ、次にガラスバルーンを１５重量％
混練し、厚みが３ｍｍの本発明の吸遮音プラスチックス
シート材１を得た。Example 1 An unsaturated polyester resin was kneaded with 30 wt% of a magnetic fluid-containing capsule 2 and then 15 wt% of a glass balloon.
The mixture was kneaded to obtain a sound absorbing / insulating plastic sheet material 1 of the present invention having a thickness of 3 mm.
【００２１】実施例２ 成形用金型内に、図２のように、繊維強化プラスチック
４として、ガラス繊維と不飽和ポリエステル樹脂とから
なる成形用基材（シートモールディングコンパウンド、
厚み２．０ｍｍ）を載置し、その上に、実施例１で得ら
れた吸遮音プラスチックシート材１を重ねた。１５０
℃、３分間、加熱成形して、本発明の吸遮音プラスチッ
クスパネルを得た。Example 2 In a molding die, as shown in FIG. 2, as a fiber reinforced plastic 4, a molding base material (sheet molding compound, composed of glass fiber and unsaturated polyester resin,
(Thickness: 2.0 mm) was placed, and the sound absorbing / insulating plastic sheet material 1 obtained in Example 1 was stacked thereon. 150
By heat-molding at ℃ for 3 minutes, the sound-absorbing and sound-insulating plastics panel of the present invention was obtained.
【００２２】実施例３ ポリアミド（ＰＡ−６）樹脂に、磁性流体内包カプセル
３を５０重量％混練し、次にガラスバルーンを１５重量
％を混練し、厚みが３ｍｍの本発明の吸遮音プラスチッ
クシート材１を得た。Example 3 Polyamide (PA-6) resin was kneaded with 50% by weight of the magnetic fluid-containing capsule 3 and then with 15% by weight of glass balloon to give a sound-absorbing / insulating plastic sheet of the present invention having a thickness of 3 mm. Material 1 was obtained.
【００２３】実施例４ 成形用金型内に、繊維強化プラスチック２として、ガラ
ス繊維と不飽和ポリエステル樹脂とからなる成形用基材
（シートモールディングコンパウンド、厚み３．０ｍ
ｍ）を載置し、その上に、実施例３で得られた吸遮音プ
ラスチックシート材１を重ねた。１５０℃、３分間、加
熱し一体成形して、本発明の片面に繊維強化プラスチッ
クを有する吸遮音プラスチックパネルを得た。Example 4 A molding base material (sheet molding compound, thickness 3.0 m) made of glass fiber and unsaturated polyester resin as fiber reinforced plastic 2 in a molding die.
m) was placed, and the sound absorbing / insulating plastic sheet material 1 obtained in Example 3 was laid on it. By heating at 150 ° C. for 3 minutes and integrally molding, a sound absorbing / insulating plastic panel having a fiber-reinforced plastic on one surface of the present invention was obtained.
【００２４】比較例１ 磁性流体内包カプセルを含有させない他は、実施例１と
同一にして、プラスチックシート材を得た。Comparative Example 1 A plastic sheet material was obtained in the same manner as in Example 1 except that the magnetic fluid-containing capsule was not included.
【００２５】比較例２ 実施例１のプラスチックシート材ではなく比較例１のプ
ラスチックシート材を用いた他は、実施例２と同一にし
てプラスチックパネルを得た。Comparative Example 2 A plastic panel was obtained in the same manner as in Example 2 except that the plastic sheet material of Comparative Example 1 was used instead of the plastic sheet material of Example 1.
【００２６】比較例３ 磁性流体内包カプセルを含有させない他は、実施例３と
同一にして、プラスチックシート材を得た。Comparative Example 3 A plastic sheet material was obtained in the same manner as in Example 3 except that the magnetic fluid-containing capsule was not contained.
【００２７】比較例４ 実施例３のプラスチックスシート材ではなく比較例３の
プラスチックシート材を用いた他は、実施例４と同一に
してプラスチックパネルを得た。Comparative Example 4 A plastic panel was obtained in the same manner as in Example 4 except that the plastic sheet material of Comparative Example 3 was used instead of the plastic sheet material of Example 3.
【００２８】[0028]
【表１】 [Table 1]
【００２９】[0029]
【発明の効果】本発明の磁性流体内包カプセルを含有す
る吸遮音プラスチックシート材は、防音特性ばかりでな
く吸遮音特性にも優れ、特に低音域において優れている
ので、建築材料や防音壁用の吸遮音プラスチックシート
材として有用である。また磁性流体内包カプセルを含有
しているので、電磁波遮蔽効果もあり、電波吸収体用材
料及びパネルとしても有用である。特に、少なくとも片
面を炭素繊維強化不飽和ポリエステル樹脂シートで一体
成形して得られるプラスチックスパネルは、通信の周波
数領域（８００ＭＨｚ以上）においては、その効果が顕
著であり、通信機器等のハウジング等に好ましく用いる
ことができる。磁性流体内包マイクロカプセルの鈴状構
造を心材とし、ＧＦマット，ＣＦマット，ＣＦク
ロスを両表面材とするサンドイッチパネルの電磁波透過
損失を測定した結果を図３に示す。また本発明の吸遮音
プラスチックシート材の少なくとも片面に繊維強化プラ
スチックを一体成形したもの又は貼り付けたものは、機
械的強度や耐久性もあるので、建築材料用や防音壁用と
して、特に用いることができる。The sound absorbing and insulating plastic sheet material containing the magnetic fluid-containing capsule of the present invention is excellent not only in soundproofing properties but also in sound absorbing and soundproofing properties, especially in the low sound range, and therefore, it is suitable for building materials and soundproof walls. It is useful as a sound absorbing / insulating plastic sheet material. Further, since it contains a magnetic fluid-containing capsule, it also has an electromagnetic wave shielding effect and is useful as a material for electromagnetic wave absorbers and panels. In particular, a plastic panel obtained by integrally molding at least one surface of a carbon fiber reinforced unsaturated polyester resin sheet has a remarkable effect in a communication frequency range (800 MHz or more) and is suitable for a housing of communication equipment or the like. It can be preferably used. FIG. 3 shows the measurement results of the electromagnetic wave transmission loss of a sandwich panel in which the bell-shaped structure of the magnetic fluid-encapsulated microcapsules was used as the core material and GF mat, CF mat, and CF cloth were both surface materials. Further, the one in which the fiber-reinforced plastic is integrally molded or attached to at least one surface of the sound-absorbing and sound-insulating plastic sheet material of the present invention has mechanical strength and durability, so that it is particularly used as a building material or a soundproof wall. You can
【図１】本発明の吸遮音プラスチックシート材の１実施
例を示す概略断面図である。FIG. 1 is a schematic cross-sectional view showing one embodiment of a sound absorbing / insulating plastic sheet material of the present invention.
【図２】本発明の吸遮音プラスチックパネルの１実施例
を示す概略断面図である。FIG. 2 is a schematic cross-sectional view showing one embodiment of the sound absorbing and sound insulating plastic panel of the present invention.
【図３】パネルの電磁波透過損失を測定した結果を示
す。FIG. 3 shows a result of measuring an electromagnetic wave transmission loss of a panel.
１ 吸遮音プラスチックシート材 ２ 磁性流体内包カプセル ３ プラスチックシート状物 ４ 繊維強化プラスチック ５ 補強繊維 ６ プラスチック 1 Sound absorbing / insulating plastic sheet material 2 Magnetic fluid encapsulation capsule 3 Plastic sheet material 4 Fiber reinforced plastic 5 Reinforcing fiber 6 Plastic
Claims (8)
カプセルを含有せしめたことを特徴とする吸遮音プラス
チックシート材。1. A sound absorbing and insulating plastic sheet material comprising a magnetic fluid-containing capsule in a plastic sheet material.
トの微粒子を有機溶媒に分散させた磁性流体を内包し、
外殻がビニル系樹脂である請求項１に記載の吸遮音プラ
スチックシート材。2. The magnetic fluid-containing capsule contains a magnetic fluid in which fine ferrite particles are dispersed in an organic solvent,
The sound absorbing / insulating plastic sheet material according to claim 1, wherein the outer shell is a vinyl resin.
なくとも片面に繊維強化プラスチックシートを固着した
請求項１又は２に記載の吸遮音プラスチックパネル。3. The sound absorbing and sound insulating plastic panel according to claim 1, wherein a fiber reinforced plastic sheet is fixed to at least one surface of the sound absorbing and sound insulating plastic sheet material.
くとも片面に繊維強化プラスチックシートを一体成形し
た請求項３に記載の吸遮音プラスチックパネル。4. The sound absorbing and sound insulating plastic panel according to claim 3, wherein a fiber reinforced plastic sheet is integrally formed on at least one surface of the sound absorbing and sound insulating plastic sheet material.
包カプセルを含有せしめたことを特徴とする電波吸収用
プラスチックシート材。5. A radio wave absorbing plastic sheet material comprising a magnetic fluid-containing capsule in a plastic sheet-like material.
トの微粒子を有機溶媒に分散させた磁性流体を内包し、
外殻がビニル系樹脂である請求項５に記載の電波吸収用
プラスチックシート材。6. The magnetic fluid-containing capsule contains a magnetic fluid in which fine ferrite particles are dispersed in an organic solvent,
The radio wave absorbing plastic sheet material according to claim 5, wherein the outer shell is a vinyl resin.
なくとも片面に繊維強化プラスチックを固着した請求項
５又は６に記載の電波吸収用プラスチックスパネル。7. The radio wave absorbing plastic panel according to claim 5, wherein a fiber reinforced plastic is fixed to at least one surface of the radio wave absorbing plastic sheet material.
なくとも片面に繊維強化プラスチックを一体成形した請
求項７に記載の電波吸収用プラスチックパネル。8. The radio wave absorbing plastic panel according to claim 7, wherein a fiber reinforced plastic is integrally molded on at least one surface of the radio wave absorbing plastic sheet material.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25190496A JP3213241B2 (en) | 1996-03-15 | 1996-09-24 | Plastic sheet material containing magnetic fluid-encapsulated capsule for sound absorbing and insulating and radio wave absorbing and plastic panel for sound absorbing and insulating and radio wave absorbing |
| PCT/JP1997/000645 WO1997034057A1 (en) | 1996-03-15 | 1997-03-04 | Sound absorbing/shielding and electric wave absorbing plastic sheet containing encapsulated magnetic fluid, and sound absorbing/shielding and electric wave absorbing plastic panel |
| AU18267/97A AU1826797A (en) | 1996-03-15 | 1997-03-04 | Sound absorbing/shielding and electric wave absorbing plastic sheet containing encapsulated magnetic fluid, and sound absorbing/shielding and electric wave absorbing plastic panel |
| US09/147,016 US6090478A (en) | 1996-03-15 | 1997-03-04 | Sound absorbing/shielding and electric wave absorbing plastic sheet containing encapsulated magnetic fluid, and sound absorbing/shielding and electric wave absorbing plastic panel |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8-59243 | 1996-03-15 | ||
| JP5924396 | 1996-03-15 | ||
| JP25190496A JP3213241B2 (en) | 1996-03-15 | 1996-09-24 | Plastic sheet material containing magnetic fluid-encapsulated capsule for sound absorbing and insulating and radio wave absorbing and plastic panel for sound absorbing and insulating and radio wave absorbing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09302106A true JPH09302106A (en) | 1997-11-25 |
| JP3213241B2 JP3213241B2 (en) | 2001-10-02 |
Family
ID=26400295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25190496A Expired - Fee Related JP3213241B2 (en) | 1996-03-15 | 1996-09-24 | Plastic sheet material containing magnetic fluid-encapsulated capsule for sound absorbing and insulating and radio wave absorbing and plastic panel for sound absorbing and insulating and radio wave absorbing |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3213241B2 (en) |
| AU (1) | AU1826797A (en) |
| WO (1) | WO1997034057A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005280321A (en) * | 2004-03-26 | 2005-10-13 | Nanao Kogyo Kk | Radio wave absorbing material with vibration-damping sound-insulation function |
| JP2006336167A (en) * | 2005-06-03 | 2006-12-14 | Toyota Motor Corp | Fiber-constituted material, soundproof material and method for producing the same |
| JP2009507725A (en) * | 2005-08-10 | 2009-02-26 | サン−ゴバン・イソベール | Insulator packaged with additives |
| JP2013541741A (en) * | 2010-11-09 | 2013-11-14 | カリフォルニア インスティチュート オブ テクノロジー | Acoustic suppression system and related method |
| JP2015048401A (en) * | 2013-08-30 | 2015-03-16 | 株式会社日本触媒 | Resin composition for vibration and attenuation material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6486596A (en) * | 1987-06-22 | 1989-03-31 | Tokyo Keiki Kk | Electromagnetic shield panel |
| JPH03171604A (en) * | 1989-11-29 | 1991-07-25 | Kitagawa Kogyo Kk | Noise absorber |
| JP2915176B2 (en) * | 1991-06-18 | 1999-07-05 | エヌオーケー株式会社 | Magnetic card |
-
1996
- 1996-09-24 JP JP25190496A patent/JP3213241B2/en not_active Expired - Fee Related
-
1997
- 1997-03-04 WO PCT/JP1997/000645 patent/WO1997034057A1/en active Application Filing
- 1997-03-04 AU AU18267/97A patent/AU1826797A/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005280321A (en) * | 2004-03-26 | 2005-10-13 | Nanao Kogyo Kk | Radio wave absorbing material with vibration-damping sound-insulation function |
| JP2006336167A (en) * | 2005-06-03 | 2006-12-14 | Toyota Motor Corp | Fiber-constituted material, soundproof material and method for producing the same |
| JP2009507725A (en) * | 2005-08-10 | 2009-02-26 | サン−ゴバン・イソベール | Insulator packaged with additives |
| JP2013541741A (en) * | 2010-11-09 | 2013-11-14 | カリフォルニア インスティチュート オブ テクノロジー | Acoustic suppression system and related method |
| JP2016103014A (en) * | 2010-11-09 | 2016-06-02 | カリフォルニア インスティチュート オブ テクノロジー | Acoustic suppression systems and related methods |
| JP2015048401A (en) * | 2013-08-30 | 2015-03-16 | 株式会社日本触媒 | Resin composition for vibration and attenuation material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3213241B2 (en) | 2001-10-02 |
| WO1997034057A1 (en) | 1997-09-18 |
| AU1826797A (en) | 1997-10-01 |
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