JPH03146564A - High damping material - Google Patents
High damping materialInfo
- Publication number
- JPH03146564A JPH03146564A JP28523689A JP28523689A JPH03146564A JP H03146564 A JPH03146564 A JP H03146564A JP 28523689 A JP28523689 A JP 28523689A JP 28523689 A JP28523689 A JP 28523689A JP H03146564 A JPH03146564 A JP H03146564A
- Authority
- JP
- Japan
- Prior art keywords
- damping material
- balloon
- binder
- inorganic filler
- vibration damping
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 title claims abstract description 31
- 239000011256 inorganic filler Substances 0.000 claims abstract description 13
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 abstract description 8
- 239000005060 rubber Substances 0.000 abstract description 6
- 239000004615 ingredient Substances 0.000 abstract description 4
- 229920006270 hydrocarbon resin Polymers 0.000 abstract description 3
- 239000013032 Hydrocarbon resin Substances 0.000 abstract description 2
- 239000010881 fly ash Substances 0.000 abstract description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 abstract description 2
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 12
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000010426 asphalt Substances 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
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、振動を発生する機械装置に取り付けられて
、その振動を吸収する制振材に関し、例えば、車両の床
面へ貼着される車両用制振シートとして好適である。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a vibration damping material that is attached to a mechanical device that generates vibration and absorbs the vibration. It is suitable as a vibration damping sheet for vehicles.
〈従来の技術〉
広い温度範囲に渡って制振性能が維持されるように、無
機フィラーを充填した制振材が使用されてきた（特公昭
５７−９７４６号公報参照）、ここで使用される無機フ
ィラーは、ガラス繊維、炭素繊維、鉱物繊維及び岩石繊
維等のｍ組状物質、またはグラファイト、マイカ、タル
ク及びクレー等の鱗片状物質、更には炭酸カルシウム、
硫酸バリウム等である。<Prior art> In order to maintain damping performance over a wide temperature range, damping materials filled with inorganic fillers have been used (see Japanese Patent Publication No. 57-9746). Inorganic fillers include m-structured substances such as glass fibers, carbon fibers, mineral fibers, and rock fibers, or scaly substances such as graphite, mica, talc, and clay, as well as calcium carbonate,
Barium sulfate, etc.
かかる無機フィラーは比重が大きい（通常１゜５以上）
ので、結果としてこれが配合される制振材の比重も大き
くなっていた。Such inorganic fillers have a high specific gravity (usually 1°5 or more)
As a result, the specific gravity of the vibration damping material to which this is blended also increases.
ところで、昨今、省エネルギーの見地から、制振材を軽
量化する要請がある。このため従来では無機フィラーと
してガラスバルン、シラスバルン等のバルン状物質を配
合することが提案されている（特開昭６２−２０５４２
号、同６３−２６５９５９号公報参照）、かかるバルン
状物質は中空体であるので、その嵩比重はｌより小さい
。よって、これを配合した制振材の比重が低下すること
となる。Nowadays, from the standpoint of energy conservation, there is a demand for reducing the weight of vibration damping materials. For this reason, it has been proposed to incorporate balloon-like substances such as glass balloons and shirasu balloons as inorganic fillers (Japanese Patent Laid-Open No. 62-20542
(Refer to Japanese Patent No. 63-265959), since such a balloon-like material is a hollow body, its bulk specific gravity is smaller than 1. Therefore, the specific gravity of the vibration damping material containing this will decrease.
〈発明が解決しようとするｎ題〉
しかしながら、上記バルンは衝撃によって破壊され易い
という欠点がある。即ち、当該バルンを他の配合剤とと
もにニーダＣかけて混練りしたとき、又はシート状にす
るため可塑状態の制振材をカレンダーロールへ通したと
きなどに、当該バルンの大部分が破壊されるおそれがあ
る。バルンが破壊されると、制振材の比重が低下しない
、 ここで、破壊の割合を考慮してバルンを予め多めに
配合することが考えられる。しかしそうすると、破壊さ
れるバルンの絶対量も多くなる。破壊されたバルンは鋭
利な破壊面を有するので、該破壊面に応力集中が生じ易
くなり、制振材の強度が低下することになりかねない。<Problems to be Solved by the Invention> However, the above-mentioned balloon has the disadvantage that it is easily destroyed by impact. That is, most of the balloon is destroyed when the balloon is kneaded with other compounding ingredients in a kneader C, or when the damping material in a plastic state is passed through a calendar roll to form a sheet. There is a risk. If the balloon is destroyed, the specific gravity of the vibration damping material does not decrease. Therefore, considering the rate of destruction, it may be possible to mix in a large amount of the balloon in advance. However, if you do so, the absolute amount of balloons that will be destroyed will also increase. Since the broken balloon has a sharp fracture surface, stress concentration tends to occur on the fracture surface, which may reduce the strength of the damping material.
＜Ｌｉ！ｉを解決するための手段〉
この発明は、上記課題にかんがみてなされた制振材であ
って、その構成は、結合剤、粘着付与剤及び無機フィラ
ーを主要成分とする制振材であって、無機フィラーとし
て二重壁を持つバルンが、前記結合剤に対して１０〜２
５０重量％配合されていることを特徴とする。<Li! Means for Solving i> The present invention is a vibration damping material made in view of the above problems, the damping material having a composition of a binder, a tackifier, and an inorganic filler as main components. , a double-walled balloon as an inorganic filler has a ratio of 10 to 2 to the binder.
It is characterized by containing 50% by weight.
く手段の詳細な説明〉
（１）結合剤じは、エラストマー 合成樹脂の単独又は
これらと瀝青質との混合体を用いる。(1) The binder uses an elastomer or a synthetic resin alone or a mixture of these and bituminous material.
上記エラストマーには、ＮＲ，ＩＲ，ＢＲ，ＳＢＲ，Ｎ
ＢＲ，Ｉ ＩＲ，ＥＰＤＭ、ＥＰＭ、ＣＲ等の各種ゴム
若しくはそれらの再生ゴム、又は１．２ポリブタジエン
、スチレン系ブロック共重合体等の熱可塑性エラストマ
ーの一種又は二種以上を用いる。The above elastomers include NR, IR, BR, SBR, N
One or more of various rubbers such as BR, IIR, EPDM, EPM, and CR or their recycled rubbers, or thermoplastic elastomers such as 1.2 polybutadiene and styrene block copolymers are used.
合成樹脂には、ＰＰ、ＰＥ等を用いる。なお、ゴムと共
用する場合には、該ゴムに対して共架橋可能な架橋系の
熱硬化性樹脂を用いることができる。これにより、低温
から高温に渡り制振性能の改善が見られる（特開昭６２
−２０５４２号公報参照）。As the synthetic resin, PP, PE, etc. are used. In addition, when used together with rubber, a crosslinkable thermosetting resin capable of co-crosslinking with the rubber can be used. As a result, an improvement in vibration damping performance can be seen from low to high temperatures (Japanese Patent Laid-Open No. 62
(Refer to Publication No.-20542).
瀝青質にはストレートアスファルト、ブロンアスファル
トその他の天然アスファルトの一種又は二種以上を用い
る。As the bituminous material, one or more types of straight asphalt, blown asphalt, and other natural asphalts are used.
（２）粘着付与剤には、石油系炭化水素樹脂、クマロン
系樹脂、フェノール系樹脂、キシレン系樹脂及びロジン
から選ばれる一種又は二種以上の混合物を例示できる０
通常、これらの粘着付与剤は軟化点が６０℃以上である
０石油系炭化水素樹脂としては、芳香族系、脂肪族系１
合成ポリテンベル系の何れでも良いが、特に高温側に制
振性能をシフトしたい場合には、軟化点の高い芳香族系
が好ましい。上記クマロン系樹脂としては、クマロン・
インデン樹脂が代表的なものである。フェノール系樹脂
としては、ｐ−ｔ−ブチルフェノール・アセチル樹脂、
ノボラック樹脂、テルペン・フェノール樹脂等を例示で
きる。(2) Examples of the tackifier include one or a mixture of two or more selected from petroleum hydrocarbon resins, coumaron resins, phenol resins, xylene resins, and rosins.
Usually, these tackifiers have a softening point of 60°C or higher.As petroleum-based hydrocarbon resins, aromatic and aliphatic 1
Any synthetic polythene type may be used, but aromatic types with a high softening point are preferred, especially when it is desired to shift the damping performance to the high temperature side. The above-mentioned coumaron-based resins include coumaron,
Indene resin is a typical example. Examples of phenolic resins include pt-butylphenol acetyl resin,
Examples include novolak resin, terpene/phenol resin, and the like.
（３）無機フィラーとしての二重壁を持つバルンには、
フライアッシュバルンを用いる。このプライアッシュバ
ルンは石炭を燃料とする火力発電炉なとの残灰や鉄鋼関
係の精錬から出るスラグなどの中に存在するものである
。(3) For balloons with double walls as inorganic fillers,
Use a fly ash balloon. These ply ash balloons exist in the residual ash of coal-fired power reactors and slag from steel-related smelting.
配合量は、既述の結合剤に対して、１０〜２５０重景％
とす重量とが好ましい、更に好ましくは５０〜１５０重
量％である。１０重量％未満であると、制振材の軽量化
が遠戚できない、一方、２５０重量％を越えて配合する
と、制振材が脆弱になるので、それぞれ好ましくない。The blending amount is 10 to 250% by weight based on the binder mentioned above.
It is preferably 50 to 150% by weight, more preferably 50 to 150% by weight. If it is less than 10% by weight, the weight of the damping material cannot be significantly reduced, while if it exceeds 250% by weight, the damping material becomes brittle, which is not preferable.
また、当該バルンの粒径は、５〜３００μｍφとする。Further, the particle size of the balloon is 5 to 300 μmφ.
バルンの粒径が３００μｍφを越えると破壊され易くな
り、一方、５μｍφに満たないと嵩比重が高くなるので
それぞれ好ましくない。If the particle size of the balloon exceeds 300 μmφ, it will be easily broken, while if it is less than 5 μmφ, the bulk specific gravity will become high, which is not preferable.
なお、無機フィラーとして、従来例で説明した物質を併
用できることはいうまでもない。It goes without saying that the substances described in the conventional example can also be used as the inorganic filler.
（４）この他、ゴム成分の加硫剤及び加硫促進剤更には
制振材の被加工性を向上させるためにオイル等を配合す
ることができる。(4) In addition to the above, a vulcanizing agent and a vulcanization accelerator for the rubber component, as well as oil and the like may be blended in order to improve the workability of the vibration damping material.
（５）上記各配合剤はニーダ等の混練り機で混練りされ
、車両用シートの場合には、２〜６ｍｔｘｔにカレンダ
ー押し出しされる。また、この場合制振シートの上へ防
音層を積層する場合が多い。そして、この制振シートの
車両床面に対する貼着は、シートを所定の形状に打抜い
てこれを車両床面に設置後、乾燥炉内を通して加熱処理
することにより行う、該加熱処理により、制振シートは
軟化若しくは流動化して床面形状になじんだ後、強固に
融着する。(5) Each of the above ingredients is kneaded using a kneader such as a kneader, and in the case of a vehicle seat, extruded in a calender to 2 to 6 mtxt. Further, in this case, a soundproof layer is often laminated on the vibration damping sheet. The vibration damping sheet is attached to the vehicle floor by punching out the sheet into a predetermined shape, installing it on the vehicle floor, and then passing it through a drying oven for heat treatment. After the vibration sheet softens or becomes fluid and adapts to the shape of the floor surface, it is firmly fused.
〈実施例〉
第１表に示した配合の制振材を調製し、３ＩＩＩＩｌｔ
のシート状物をカレンダー押し出しした。なお、各配合
物に対する混練りの条件及びカレンダー押出しの条件は
同一である。<Example> A damping material having the composition shown in Table 1 was prepared, and 3IIIlt
The sheet material was extruded using a calendar. Note that the kneading conditions and calender extrusion conditions for each compound were the same.
二重壁構造を持つバルンには、白石カルシウム（株）販
売のガロライト（嵩比重、０．３５）を採用した。Gallolite (bulk specific gravity, 0.35) sold by Shiroishi Calcium Co., Ltd. was used for the double-walled balloon.
各制振材におけるバルン保持率、比重及び制振性能を第
１表に併記した。The balloon retention rate, specific gravity, and vibration damping performance of each damping material are also listed in Table 1.
ここにおいて、バルン保持率は以下のようにして求めた
。Here, the balloon retention rate was determined as follows.
まず、配合されたバルンの全てが破壊されたと仮定した
ときの制振材の比重ρ０を計算より求め、同様にバルン
が全く破壊されないと仮定したときの制振材の比重ρ１
００を求める。そして、これらの値と、実際に得られた
制振材の比重ρを下記式へ代入する。First, calculate the specific gravity ρ0 of the damping material assuming that all of the balloons in the compound are destroyed, and similarly, the specific gravity ρ1 of the damping material assuming that no balloons are destroyed.
Find 00. Then, these values and the actually obtained specific gravity ρ of the damping material are substituted into the following formula.
（（ρ０−ρ）／（ρ０−ρ１００ ） ） Ｘ １０
０（％）
また、制振性能は以下のようにして求めた。((ρ0-ρ)/(ρ0-ρ100)) X 10
0 (%) In addition, the damping performance was determined as follows.
各制振シートを打抜いて鉄板基体（２５０ｍｍ ｘ ２
５ｍｍＸ Ｏ，８ｍｍｔ ）上にセット後、１５０度ｘ
３０分の条件で熱処理を行い、鉄板基体上に貼着させて
各試験片を得た。Punch out each vibration damping sheet and prepare a steel plate base (250mm x 2
5mm
Heat treatment was performed for 30 minutes, and each test piece was obtained by adhering it onto an iron plate substrate.
そして、各試験片について、機械インピーダンス法を用
いて、所定温度における損失係数（η）を測定した。な
お、測定周波数範囲は２０〜２０００Ｈｚである。Then, for each test piece, the loss coefficient (η) at a predetermined temperature was measured using the mechanical impedance method. Note that the measurement frequency range is 20 to 2000 Hz.
〈発明の効果〉
以上説明したように、本発明の制振材は、二重構造を持
つバルンを無機フィラーとして配合したものである。か
かるバルンは、従来使用されていたガラスバルンやシラ
スバルン（これらは−重壁である。）より、耐衝撃強度
が大きい。従って、各配合剤を混練りするとき、または
カレンダー押し出しするときにもバルンは破壊され難く
なる。<Effects of the Invention> As explained above, the vibration damping material of the present invention contains balloons having a double structure as an inorganic filler. Such balloons have greater impact strength than conventionally used glass and glass balloons (which are heavy-walled). Therefore, the balloon is less likely to be destroyed when the ingredients are kneaded or calender extruded.
よって、制振材の比重を確実に低下させることができる
。また、破壊されるバルンが少なくなるので、制振材中
に存在する鋭利な破壊片の量が少なくなる。これにより
、制振材の自体の強度も向上する。Therefore, the specific gravity of the damping material can be reliably reduced. Also, since fewer balloons are destroyed, the amount of sharp fragments present in the damping material is reduced. This also improves the strength of the damping material itself.
つまりこの発明によれば、 軽量かつ強度の高い 制振材を提供することができる。In other words, according to this invention, Light and strong A damping material can be provided.
第 表 ※ 各配合剤の配合量は重量部表示である。No. table * The amount of each compounding agent is expressed in parts by weight.
Claims (1)
制振材であつて、 前記無機フィラーとして二重壁を持つバルンが、前記結
合剤に対して１０〜２５０重量％配合されている ことを特徴とする制振材。[Scope of Claims] A vibration damping material containing a binder, a tackifier, and an inorganic filler as main components, wherein the double-walled balloon as the inorganic filler contains 10 to 250% by weight of the binder. A vibration damping material characterized by the fact that it contains
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28523689A JPH03146564A (en) | 1989-10-31 | 1989-10-31 | High damping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28523689A JPH03146564A (en) | 1989-10-31 | 1989-10-31 | High damping material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03146564A true JPH03146564A (en) | 1991-06-21 |
Family
ID=17688879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28523689A Pending JPH03146564A (en) | 1989-10-31 | 1989-10-31 | High damping material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03146564A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993012176A1 (en) * | 1991-12-18 | 1993-06-24 | General Petrochemical Industries Ltd. | High-loss rubber composition containing aromatic hydrocarbon/formaldehyde resin |
| US5840797A (en) * | 1996-09-16 | 1998-11-24 | H. B. Fuller Licensing & Financing, Inc. | Light weight, high performance vibration-damping system |
| WO2003060005A1 (en) * | 2001-12-27 | 2003-07-24 | Cci Corporation | Vibration-damping composition and vibration-damping structure |
| CN107418110A (en) * | 2017-09-08 | 2017-12-01 | 常州大学 | A kind of novel vehicle graphene environmental-protection damp material and preparation method thereof |
-
1989
- 1989-10-31 JP JP28523689A patent/JPH03146564A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993012176A1 (en) * | 1991-12-18 | 1993-06-24 | General Petrochemical Industries Ltd. | High-loss rubber composition containing aromatic hydrocarbon/formaldehyde resin |
| US5840797A (en) * | 1996-09-16 | 1998-11-24 | H. B. Fuller Licensing & Financing, Inc. | Light weight, high performance vibration-damping system |
| WO2003060005A1 (en) * | 2001-12-27 | 2003-07-24 | Cci Corporation | Vibration-damping composition and vibration-damping structure |
| CN107418110A (en) * | 2017-09-08 | 2017-12-01 | 常州大学 | A kind of novel vehicle graphene environmental-protection damp material and preparation method thereof |
| CN107418110B (en) * | 2017-09-08 | 2019-10-11 | 常州大学 | Novel graphene environment-friendly damping material for vehicles and preparation method thereof |
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