JPH0760894A - Composite damping material excellent in close adhesiveness and edge release resistance - Google Patents
Composite damping material excellent in close adhesiveness and edge release resistanceInfo
- Publication number
- JPH0760894A JPH0760894A JP21626093A JP21626093A JPH0760894A JP H0760894 A JPH0760894 A JP H0760894A JP 21626093 A JP21626093 A JP 21626093A JP 21626093 A JP21626093 A JP 21626093A JP H0760894 A JPH0760894 A JP H0760894A
- Authority
- JP
- Japan
- Prior art keywords
- damping material
- viscoelastic
- resin
- composite
- intermediate layer
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築材料、自動車、家
庭電気製品等に好適に用いることができる密着性及び端
面の耐剥離性にすぐれ、更に、好ましくは、溶接性にも
すぐれる複合型制振材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a composite having excellent adhesion and end face delamination resistance, which is preferably used for building materials, automobiles, household electric appliances, etc., and more preferably also has excellent weldability. Mold damping material.
【０００２】[0002]
【従来の技術】従来から、建築材料をはじめとして、車
両、船舶、家庭電気製品等の分野において、振動やそれ
に伴なう騒音を防止するために、種々の複合型制振材が
提案され、実用化されている。その中でも、２枚の金属
板の間に粘弾性樹脂層からなる中間層を介在させてなる
複合型制振材は、鋼板の持つすぐれた機械的特性と粘弾
性樹脂の持つすぐれた制振性能を有する点から、構造材
料としてもすぐれており、広く利用され始めている。2. Description of the Related Art Conventionally, various composite type damping materials have been proposed in order to prevent vibration and accompanying noise in the fields of construction materials, vehicles, ships, household electric appliances, etc. It has been put to practical use. Among them, the composite type damping material in which an intermediate layer made of a viscoelastic resin layer is interposed between two metal plates has excellent mechanical properties of a steel sheet and excellent vibration damping performance of a viscoelastic resin. From the point of view, it is also excellent as a structural material and has begun to be widely used.
【０００３】かかる粘弾性樹脂層を金属板間に介在させ
てなる複合型制振材を構造部材として用いるにあたって
は、用いる鋼板が次の特性を有することが必要である。
第１には、製品の使用環境において、制振性と耐食性と
にすぐれることであり、更に、腐食性雰囲気において、
端面（金属板の切り口部）から複合型制振材が口開きし
ないことである。第２には、金属板が粘弾性樹脂に対し
て親和力が大きく、密着性乃至密着強度が大きいことで
ある。このほか、第３として、電気溶接が可能であれ
ば、一層好ましい。When a composite type vibration damping material having such a viscoelastic resin layer interposed between metal plates is used as a structural member, it is necessary that the steel plate used has the following characteristics.
Firstly, it has excellent vibration damping and corrosion resistance in the environment where the product is used. Furthermore, in a corrosive atmosphere,
That is, the composite damping material does not open from the end face (cut portion of the metal plate). Secondly, the metal plate has a large affinity for the viscoelastic resin and has a large adhesion or adhesion strength. In addition, thirdly, it is more preferable if electric welding is possible.
【０００４】従来、このようなサンドイッチ状の複合型
制振材を形成するための粘弾性樹脂としては、熱可塑性
樹脂と熱硬化性樹脂のいずれも用いられているが、しか
し、従来のかかる複合型制振材は、制振性と密着性はよ
いが、腐食性雰囲気において長期間にわたって使用する
とき、複合型制振材の端面から腐食が進行し、複合型制
振材が口開きする問題がある。特に、電気溶接が可能で
あるように、粘弾性中間層に導電性充填材を配合してな
る複合型制振材に、このような傾向が著しい。Conventionally, both a thermoplastic resin and a thermosetting resin have been used as the viscoelastic resin for forming such a sandwich type composite vibration damping material. The type damping material has good vibration damping and adhesion, but when used for a long time in a corrosive atmosphere, corrosion progresses from the end surface of the composite type damping material, causing the compound type damping material to open up. There is. In particular, such a tendency is remarkable in the composite vibration damping material in which the viscoelastic intermediate layer is mixed with the conductive filler so that the electric welding can be performed.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上述したよ
うな複合型制振材における問題を解決するためになされ
たものであつて、密着性と端面の耐剥離性にすぐれ、更
に、好ましくは、溶接性にすぐれる複合型制振材を提供
することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems in the composite type vibration damping material, and is excellent in adhesion and peeling resistance of the end face, and more preferably Aims to provide a composite damping material having excellent weldability.
【０００６】[0006]
【課題を解決するための手段】本発明による密着性及び
端面の耐剥離性にすぐれる複合型制振材の第１は、一対
の金属板の間に粘弾性樹脂と防錆顔料２〜６０重量％と
からなる粘弾性中間層を介在させてなることを特徴とす
る。本発明による密着性及び端面の耐剥離性にすぐれる
複合型制振材の第２は、一対の金属板の間に粘弾性樹脂
と防錆顔料２〜６０重量％と導電性充填材５〜４０重量
％とからなる粘弾性中間層を介在させてなることを特徴
とする。The first of the composite type vibration damping materials according to the present invention, which are excellent in adhesion and resistance to peeling of the end face, is a viscoelastic resin and a rust preventive pigment between a pair of metal plates. It is characterized in that a viscoelastic intermediate layer consisting of and is interposed. The second type of the composite vibration damping material according to the present invention, which has excellent adhesion and peeling resistance on the end face, is a viscoelastic resin and a rust preventive pigment 2 to 60% by weight and a conductive filler 5 to 40% by weight between a pair of metal plates. %, And a viscoelastic intermediate layer composed of 10% is interposed.
【０００７】本発明による第１の複合型制振材は、一対
の金属板の間に粘弾性樹脂と防錆顔料とからなる粘弾性
中間層を有する。ここに、上記防錆顔料としては、クロ
ム酸イオンを持つクロメート系防錆顔料や亜鉛粉末等が
用いられる。クロメート系防錆顔料としては、クロム酸
ストロンチウム、クロム酸亜鉛、クロム酸カルシウム、
クロム酸バリウム等を例示することができるが、特にこ
れらに限定されるものではない。The first composite damping material according to the present invention has a viscoelastic intermediate layer composed of a viscoelastic resin and a rust preventive pigment between a pair of metal plates. Here, as the rust preventive pigment, a chromate rust preventive pigment having chromate ions, zinc powder or the like is used. Chromate anticorrosion pigments include strontium chromate, zinc chromate, calcium chromate,
Examples thereof include barium chromate and the like, but are not particularly limited thereto.
【０００８】本発明においては、このような防錆顔料
は、粘弾性中間層において、２〜６０重量％の範囲で含
まれる。防錆顔料の配合量が粘弾性中間層において、２
重量％よりも少ないときは、得られる複合型制振材の端
面の耐剥離性が有効に改善されず、他方、防錆顔料の配
合量が粘弾性中間層において、６０重量％を超えるとき
は、得られる複合型制振材は、端面の耐剥離性にはすぐ
れるものの、逆にＴ剥離強度及び制振性能が著しく劣化
する。In the present invention, such a rust preventive pigment is contained in the viscoelastic intermediate layer in the range of 2 to 60% by weight. In the viscoelastic intermediate layer, the compounding amount of the anticorrosive pigment is 2
When it is less than 60% by weight, the peeling resistance of the end face of the obtained composite type vibration damping material is not effectively improved, and when the content of the rust preventive pigment is more than 60% by weight in the viscoelastic intermediate layer. Although the obtained composite type vibration damping material has excellent peel resistance at the end face, on the contrary, the T peel strength and the vibration damping performance are significantly deteriorated.
【０００９】本発明による第２の複合型制振材は、一対
の金属板の間に上記粘弾性樹脂と防錆顔料２〜６０重量
％と共に、更に、導電性充填材５〜４０重量％を含む粘
弾性中間層を有する。ここに、上記導電性充填材として
は、鉄粉、カーボンブラック、ニツケル粉、金属性ネッ
ト等を挙げることができる。The second composite type vibration damping material according to the present invention is a viscoelastic resin and a rust preventive pigment in an amount of 2 to 60% by weight between a pair of metal plates, and further a conductive filler in an amount of 5 to 40% by weight. It has an elastic intermediate layer. Here, examples of the conductive filler include iron powder, carbon black, nickel powder, and metallic net.
【００１０】このような導電性充填材は、本発明によれ
ば、粘弾性中間層において、５〜４０重量％の範囲にて
含まれる。導電性充填材の配合量が粘弾性中間層におい
て、５重量％％よりも少ないときは、得られる複合型制
振材のスポット溶接性の改善に効果がなく、他方、導電
性充填材の配合量が粘弾性中間層において、４０重量％
を超えるときは、スポット溶接性は良好であるが、逆に
Ｔ剥離強度及び制振性性能が著しく劣化する。According to the present invention, such a conductive filler is contained in the viscoelastic intermediate layer in the range of 5 to 40% by weight. When the compounding amount of the conductive filler is less than 5% by weight in the viscoelastic intermediate layer, there is no effect in improving the spot weldability of the obtained composite type vibration damping material, while the compounding of the conductive filler is performed. 40% by weight in the viscoelastic intermediate layer
When it exceeds, the spot weldability is good, but conversely, the T peel strength and the vibration damping performance are significantly deteriorated.
【００１１】本発明において、前記粘弾性樹脂として
は、例えば、ポリスチレン、ＡＳ樹脂、ＡＢＳ樹脂、Ｍ
Ｓ樹脂、耐衝撃性ポリスチレン等のスチレン系樹脂、ポ
リメチルアクリレート、ポリメチルメタアクリレート、
アクリル系共重合体等のアクリル系樹脂、ポリ塩化ビニ
ル、塩化ビニル・酢酸ビニル共重合体、塩化ビニル・ア
クリル酸エステル共重合体等の塩化ビニル系樹脂、ポリ
酢酸ビニル、エチレン・オレフィン共重合体、エチレン
・酢酸ビニル共重合体、エチレン・アクリル酸共重合
体、エチレン・メタアクリル酸エステル共重合体、プロ
ピレン・エチレン共重合体、プロピレン・ブテン共重合
体等のプロピレン系樹脂、非晶質ポリエステル等の各種
熱可塑性樹脂を例示することができる。In the present invention, examples of the viscoelastic resin include polystyrene, AS resin, ABS resin, M
S resin, styrene resin such as high impact polystyrene, polymethyl acrylate, polymethyl methacrylate,
Acrylic resin such as acrylic copolymer, polyvinyl chloride, vinyl chloride / vinyl acetate copolymer, vinyl chloride resin such as vinyl chloride / acrylic acid ester copolymer, polyvinyl acetate, ethylene / olefin copolymer Propylene resins such as ethylene, vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene / methacrylic acid ester copolymer, propylene / ethylene copolymer, propylene / butene copolymer, amorphous polyester Examples of various thermoplastic resins such as
【００１２】また、上記以外にも、例えば、スチレン・
ブタジエンゴム、天然ゴム、ブタジエンゴム、クロロプ
レンゴム、ブチルゴム、ニトリルゴム、アクリルゴム、
エチレン・アクリルゴム、ＥＰＤＭ等のゴム乃至エラス
トマーや、エポキシ樹脂、フェノール樹脂、飽和及び不
飽和ポリエステル樹脂等の熱硬化性樹脂も前記粘弾性樹
脂として用いることができる。このような熱硬化性樹脂
を粘弾性樹脂として用いる場合、必要に応じて、架橋剤
を併用することができる。このような架橋剤は、用いる
樹脂によって適宜に選択されるが、例えば、有機硫黄化
合物等の樹脂加硫剤、ポリアミン、ポリオール、有機過
酸化物、アミノ樹脂、イソシアネート類、エポキシ樹
脂、ポリアミドアミン、酸無水物等を例示することがで
きる。In addition to the above, for example, styrene
Butadiene rubber, natural rubber, butadiene rubber, chloroprene rubber, butyl rubber, nitrile rubber, acrylic rubber,
Rubber or elastomer such as ethylene / acrylic rubber and EPDM, and thermosetting resin such as epoxy resin, phenol resin, saturated and unsaturated polyester resin can also be used as the viscoelastic resin. When such a thermosetting resin is used as a viscoelastic resin, a cross-linking agent can be used together, if necessary. Such a cross-linking agent is appropriately selected depending on the resin used, for example, a resin vulcanizing agent such as an organic sulfur compound, polyamine, polyol, organic peroxide, amino resin, isocyanates, epoxy resin, polyamidoamine, An acid anhydride etc. can be illustrated.
【００１３】これらの粘弾性樹脂は、単独で、又は２種
以上の混合物として、用いることもでき、複合型制振鋼
板に要求される性能、例えば、制振性、耐熱性、加工性
等に応じて適宜に選択される。本発明においては、粘弾
性中間層の厚みは、通常、３０〜８０μｍの範囲であ
る。These viscoelastic resins can be used alone or as a mixture of two or more kinds thereof, and have a performance required for the composite type vibration-damping steel sheet, such as vibration-damping property, heat resistance, and workability. It is selected accordingly. In the present invention, the thickness of the viscoelastic intermediate layer is usually in the range of 30 to 80 μm.
【００１４】更に、本発明においては、得られる制振材
の耐蝕性を向上させるために、少なくとも粘弾性中間層
と接着する金属板の表面に、予め通常のクロメート処理
を施してもよい。このようなクロメート処理としては、
反応性、塗布型、電解型のいずれのどの方法でもよい。
また、本発明において、金属板としては、好適には、通
常の冷延鋼板、亜鉛及び亜鉛系合金めっき鋼板等を用い
ることができるが、しかし、必要に応じて、他種の金属
板（銅板、ＡＩ板他）等も用いることができる。Further, in the present invention, in order to improve the corrosion resistance of the obtained damping material, at least the surface of the metal plate to be bonded to the viscoelastic intermediate layer may be previously subjected to a usual chromate treatment. As such a chromate treatment,
Any method of reactivity, coating type or electrolytic type may be used.
Further, in the present invention, as the metal plate, it is possible to preferably use an ordinary cold-rolled steel plate, zinc and a zinc-based alloy-plated steel plate, but if necessary, other kinds of metal plate (copper plate , AI plate, etc.) can also be used.
【００１５】このような本発明による複合型制振鋼板
は、その製造方法において、特に限定されるものではな
いが、例えば、ホットプレス法、加熱ロールによる連続
積層法等の通常の積層法が好ましく用いられる。一例を
挙げれば、例えば、少なくとも一方の金属板の内面に前
記防錆顔料を含む粘弾性樹脂を塗布し、乾燥させた後、
この樹脂層を一対の金属板の間に介在させて、これら金
属板を加圧し、相互に圧着することによつて、本発明に
よる複合型制振鋼板を得ることができる。The composite vibration-damping steel sheet according to the present invention as described above is not particularly limited in its production method, but for example, a normal lamination method such as a hot pressing method or a continuous lamination method using heating rolls is preferable. Used. As an example, for example, after applying a viscoelastic resin containing the anticorrosion pigment on the inner surface of at least one of the metal plate, after drying,
By interposing this resin layer between a pair of metal plates, pressurizing these metal plates and press-bonding them to each other, the composite vibration-damping steel plate according to the present invention can be obtained.
【００１６】[0016]
【実施例】以下に実施例を挙げて本発明を説明するが、
本発明はこれら実施例により何ら限定されるものではな
い。以下においては、金属板として、常法によって製造
された溶融亜鉛めっき鋼板（めっき付着量１５０／１５
０ｇ／m2）を用い、粘弾性中間層は、架橋剤として、コ
ロネートＬ（日本ポリウレタン工業（株）製有機ポリイ
ソシアネート）を５重量部配合した平均分子量１５００
０、ガラス転移点−１０℃のポリエステル樹脂を用いて
形成せた。The present invention will be described below with reference to examples.
The present invention is not limited to these examples. In the following, as a metal plate, a hot dip galvanized steel sheet manufactured by a conventional method (plating adhesion amount 150/15
0 g / m 2 ) was used, and the viscoelastic intermediate layer had an average molecular weight of 1500 containing 5 parts by weight of Coronate L (organic polyisocyanate manufactured by Nippon Polyurethane Industry Co., Ltd.) as a crosslinking agent.
It was formed using a polyester resin having a glass transition point of -10 ° C.
【００１７】得られた複合型制振鋼板について、下記の
評価を行なつた。 Ｔ剥離強度 ＪＩＳ Ｋ ６８４０に準拠して測定した。 制振性 複合型制振鋼板から短冊型の試料を切り出し、Ｂ＆Ｋ社
製複素弾性係数測定装置を使用して、共振法によつて振
動減衰試験を行ない、損失係数ηを測定した（温度２０
℃、周波数２５０Ｈｚ）。その評価方法は、損失系数η
が0.１以上を○、損失系数ηが0.１未満を×とした。The following evaluation was performed on the obtained composite type vibration damping steel plate. T Peel Strength Measured according to JIS K 6840. Damping property A strip-shaped sample was cut out from a composite type damping steel plate, and a vibration damping test was performed by a resonance method using a complex elastic coefficient measuring device manufactured by B & K Co. to measure a loss coefficient η (temperature 20.
C., frequency 250 Hz). The evaluation method is the loss coefficient η
Is 0.1 or more, and the loss coefficient η is less than 0.1 is x.
【００１８】塩水噴霧試験後のＴ剥離強度 複合型制振鋼板の端面の剥離性の評価方法として、複合
型制振鋼板を２５×２００mmに切断し、塩水噴霧試験機
（ＪＩＳ−Ｋ−５４００）に５００時間暴露した後、Ｔ
剥離強度を測定した。 溶接性 複合型制振鋼板を試験片寸法（３０×１００mm）の形状
に切断し、１０００枚の試料を採取した。この試料を用
いて、重ねしろ３０mmにてスポット溶接性の評価を行な
つた。溶接条件は、電極加圧力２００ｋｇｆ、溶接電流
８ＫＡ、通電時間１２サイクルで行なつた。T-Peel Strength After Salt Spray Test As a method for evaluating the peelability of the end face of the composite vibration-damping steel plate, the composite vibration-damping steel plate was cut into 25 × 200 mm, and a salt water spray tester (JIS-K-5400) was used. After 500 hours of exposure to T
The peel strength was measured. Weldability The composite vibration-damping steel plate was cut into a test piece size (30 × 100 mm), and 1000 samples were taken. Using this sample, spot weldability was evaluated at an overlap of 30 mm. The welding conditions were electrode pressure of 200 kgf, welding current of 8 KA, and energization time of 12 cycles.
【００１９】評価方法は、溶接後のスポット溶接試験片
の表面状況を観察し、鋼板表面の穴あき、焼け、未通電
等の溶接不良発生個数を集計し、全溶接試験枚数比で溶
接不良発生率を求めた。The evaluation method was to observe the surface condition of the spot-welded test pieces after welding, total the number of defective welds such as perforations, burns, and non-conduction on the surface of the steel sheet, and calculate the defective welds in the ratio of the total number of welded tests. I asked for the rate.
【００２０】実施例１〜６及び比較例１〜５ 上記粘弾性樹脂に表１に示すように種々の防錆顔料を配
合し、一対の金属板のうちの一方の内面に乾燥後の樹脂
膜厚が５０μｍになるように塗布し、乾燥させた後、こ
れに他方の金属板を重ね合わせ、熱プレスによつて加熱
加圧して、複合型制振材を得た。得られた複合型制振鋼
板の性能を表１に示す。Examples 1 to 6 and Comparative Examples 1 to 5 Various rust preventive pigments are blended with the above viscoelastic resin as shown in Table 1, and a resin film after drying is formed on one inner surface of a pair of metal plates. After coating so as to have a thickness of 50 μm and drying, the other metal plate was superposed on this, and heated and pressed by a hot press to obtain a composite vibration damping material. Table 1 shows the performance of the obtained composite vibration-damping steel plate.
【００２１】[0021]
【表１】 [Table 1]
【００２２】実施例７〜１３及び比較例６〜１２ 前記粘弾性樹脂に表２に示すように種々の防錆顔料と導
電性充填材とを配合し、一対の金属板のうちの一方の内
面に乾燥後の樹脂膜厚が５０μｍになるように塗布し、
乾燥させた後、これに他方の金属板を重ね合わせ、熱プ
レスによつて加熱加圧して、複合型制振材を得た。この
ようにして得た複合型制振鋼板について下記の評価を行
なった。結果を表２に示す。Examples 7 to 13 and Comparative Examples 6 to 12 As shown in Table 2, various rust preventive pigments and conductive fillers were mixed with the viscoelastic resin, and the inner surface of one of a pair of metal plates was mixed. To the resin film thickness after drying to 50 μm,
After drying, the other metal plate was superposed on this, and heated and pressed by a hot press to obtain a composite vibration damping material. The following evaluation was performed on the composite type vibration damping steel sheet thus obtained. The results are shown in Table 2.
【００２３】[0023]
【表２】 [Table 2]
【００２４】[0024]
【発明の効果】以上のように、本発明による複合型制振
鋼板は、密着性及び端面の耐剥離性にすぐれており、更
に、粘弾性中間層に導電性充填材を配合してなるもの
は、溶接性にすぐれながら、密着性及び端面の耐剥離性
にすぐれており、かくして、本発明による複合型制振鋼
板は、建設、自動車、家庭電気製品等の種々の分野にお
ける多様且つ高度の要求に応えることができるものであ
る。As described above, the composite vibration-damping steel sheet according to the present invention is excellent in adhesion and resistance to peeling of the end face, and further comprises a conductive filler in the viscoelastic intermediate layer. Has excellent weldability, adhesiveness, and end face delamination resistance, and thus, the composite vibration-damping steel sheet according to the present invention has various and advanced properties in various fields such as construction, automobiles, and household electrical appliances. It can meet the demand.
Claims (2)
２〜６０重量％とからなる粘弾性中間層を介在させてな
ることを特徴とする密着性及び端面の耐剥離性にすぐれ
る複合型制振材。1. Adhesion and end face peeling resistance are excellent in that a viscoelastic intermediate layer comprising a viscoelastic resin and a rust preventive pigment of 2 to 60% by weight is interposed between a pair of metal plates. Composite type damping material.
２〜６０重量％と導電性充填材５〜４０重量％とからな
る粘弾性中間層を介在させてなることを特徴とする溶接
性、密着性及び端面の耐剥離性にすぐれる複合型制振
材。2. A welding characterized in that a viscoelastic intermediate layer comprising a viscoelastic resin, an antirust pigment of 2 to 60% by weight and a conductive filler of 5 to 40% by weight is interposed between a pair of metal plates. Composite damping material with excellent properties, adhesion and resistance to peeling of the end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21626093A JPH0760894A (en) | 1993-08-31 | 1993-08-31 | Composite damping material excellent in close adhesiveness and edge release resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21626093A JPH0760894A (en) | 1993-08-31 | 1993-08-31 | Composite damping material excellent in close adhesiveness and edge release resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0760894A true JPH0760894A (en) | 1995-03-07 |
Family
ID=16685772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21626093A Pending JPH0760894A (en) | 1993-08-31 | 1993-08-31 | Composite damping material excellent in close adhesiveness and edge release resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0760894A (en) |
-
1993
- 1993-08-31 JP JP21626093A patent/JPH0760894A/en active Pending
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