JPH0684481B2 - Damping material - Google Patents
Damping materialInfo
- Publication number
- JPH0684481B2 JPH0684481B2 JP61157186A JP15718686A JPH0684481B2 JP H0684481 B2 JPH0684481 B2 JP H0684481B2 JP 61157186 A JP61157186 A JP 61157186A JP 15718686 A JP15718686 A JP 15718686A JP H0684481 B2 JPH0684481 B2 JP H0684481B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- weight
- damping material
- damping
- type epoxy
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/3605—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by their material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paints Or Removers (AREA)
- Vibration Prevention Devices (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は新規な無溶剤型の制振材に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a novel solvent-free damping material.
従来、自動車、船舶、事務機器等の機械的駆動部より発
生する振動による騒音を低下させる方法として基材およ
び周辺部の鋼板もしくはアルミ等の金属、セラミック等
の制振化が検討され、各種制振材が開発されている。一
般的な制振材もしくは制振化方法としては酢酸ビニルと
塩化ビニル共重合体や、ゴム、アスファルトにマイカ等
を充填したシート状制振材を基材および周辺部の鋼板等
にはりつける方法、あるいは溶剤型樹脂にマイカ等を充
填した制振塗料をスプレー施工にて塗布する方法があ
る。しかしながらシート状制振材は複雑な形状を有する
ものへのはりつけが困難なことおよびエンジンまわり等
の70〜100℃と比較的高温環境下においては制振効果が
低下する欠点があった。また溶剤型制振塗料のスプレー
施工による制振化は工程上、飛散した溶剤の処理に多大
の費用と工数がかかる欠点があった。Conventionally, as a method of reducing noise due to vibration generated from mechanical drive parts of automobiles, ships, office equipment, etc., damping of steel plates or metal such as aluminum, ceramics, etc. in the base material and peripheral parts has been studied, and various damping methods have been studied. Swing material is being developed. As a general damping material or damping method, vinyl acetate and vinyl chloride copolymer, or a method of attaching a sheet-shaped damping material filled with rubber, asphalt with mica, etc. to the base material and the steel plate of the peripheral portion, Alternatively, there is a method of applying a damping paint, which is a solvent-type resin filled with mica, by spraying. However, the sheet-shaped damping material has drawbacks that it is difficult to stick to a sheet having a complicated shape and that the damping effect is deteriorated under a relatively high temperature environment of 70 to 100 ° C around the engine. In addition, there is a drawback in that the process of damping the solvent-type damping paint by spraying requires a great deal of cost and man-hours for processing the scattered solvent in the process.
一方、特開昭57-65759号公報に記載されているごとく無
溶剤型である不飽和ポリエステル樹脂にマイカ等のリン
片状無機物を充填したスプレー施工用制振塗料が開発さ
れている。しかしながら不飽和ポリエステル樹脂系の制
振塗料は、耐衝撃性、冷熱サイクルにおける密着性が劣
る欠点があり、エンジンまわり等における使用は困難で
あった。さらに揺変剤を含まない不飽和ポリエステル系
制振塗料においてはスプレー施工時、たれを生じる欠点
もあった。On the other hand, as described in JP-A-57-65759, a damping paint for spray construction has been developed in which a solvent-free unsaturated polyester resin is filled with a flaky inorganic substance such as mica. However, the unsaturated polyester resin-based vibration-damping paint has the drawback of being inferior in impact resistance and adhesiveness in a thermal cycle, and thus it has been difficult to use it around an engine or the like. Further, the unsaturated polyester vibration-damping paint containing no thixotropic agent has a drawback of causing dripping during spraying.
本発明の目的は、使用温度範囲が広く、かつ耐食性、耐
衝撃性、冷熱サイクルにおける密着性に優れ、さらにス
プレー施工に適した新規の無溶剤型の制振材を提供する
ことにある。An object of the present invention is to provide a novel solvent-free vibration damping material which has a wide operating temperature range, excellent corrosion resistance, impact resistance, and adhesion in a heat cycle and is suitable for spraying.
本発明の制振材はビスフェノールＡ型エポキシ化合物、
ビスフェノールＦ型エポキシ化合物またはノボラック型
エポキシ化合物と（メタ）アクリル酸とのプレポリマー
を、架橋剤としてのビニルモノマーに溶解したエポキシ
アクリレート系樹脂100重量部当り、リン片状無機物を1
0〜80重量部、硬化剤を0.3〜4.0重量部およびアスベス
ト繊維もしくは超微粒子状無水シリカからなる揺変剤を
0.2〜５重量部の割合で含有してなる、塗膜が一層であ
ることを特徴とするものである。The damping material of the present invention is a bisphenol A type epoxy compound,
1 part of the scaly inorganic material per 100 parts by weight of an epoxy acrylate resin in which a prepolymer of a bisphenol F type epoxy compound or a novolak type epoxy compound and (meth) acrylic acid is dissolved in a vinyl monomer as a crosslinking agent.
0 to 80 parts by weight, 0.3 to 4.0 parts by weight of curing agent and thixotropic agent consisting of asbestos fibers or ultrafine anhydrous silica
The coating film is a single layer, which is contained in a proportion of 0.2 to 5 parts by weight.
上記のエポキシ化合物は、その２種以上を併用すること
もできる。上記プレポリマーは公知の方法で合成するこ
とができるし、また市場でも入手できる。Two or more of the above epoxy compounds can be used in combination. The above prepolymer can be synthesized by a known method, and is also commercially available.
また架橋剤であるビニルモノマーとしてはスチレン、ビ
ニルトルエン、ジビニルベンゼン、α−メチルスチレ
ン、アクリル酸メチル、メタアクリル酸メチル等であ
る。The vinyl monomer as a crosslinking agent is styrene, vinyltoluene, divinylbenzene, α-methylstyrene, methyl acrylate, methyl methacrylate, or the like.
リン片状無機物としてはマイカ、ガラスフレークが好ま
しいが、無機のリン片状無機物であれば特に制限される
ものではない。リン片状無機物の粒子径としては、制振
特性、スプレー施工性より、好ましくは16メッシュから
325メッシュ、特に35メッシュから160メッシュが好まし
い。Mica and glass flakes are preferable as the flaky inorganic substance, but the flaky inorganic substance is not particularly limited as long as it is an inorganic flaky inorganic substance. The particle size of the flaky inorganic material is, from the vibration damping property and sprayability, preferably 16 mesh.
325 mesh, especially 35 to 160 mesh is preferred.
リン片状無機物の配合量はエポキシアクリレート樹脂10
0重量部に対し、10〜80重量部である。10重量部未満で
は制振効果は低下し、また80重量部越えると制振材の流
動性の低下によってスプレー施工性が低下し、さらに基
材への接着力が低下する。好ましい配合量は20〜55重量
部である。Epoxy acrylate resin 10
It is 10 to 80 parts by weight with respect to 0 parts by weight. If it is less than 10 parts by weight, the vibration damping effect is lowered, and if it exceeds 80 parts by weight, the flowability of the vibration damping material is lowered, so that the spraying workability is lowered and the adhesive force to the substrate is also lowered. The preferred blending amount is 20 to 55 parts by weight.
揺変剤は施工に当ってのタレを防止するために用いられ
るが、この目的には特定の揺変剤、すなわちアスベスト
繊維又は超微粒子状物無水シリカに限って有効である。
使用量は0.2から５重量部である。0.2重量部未満ではタ
レを生じ、５重量部を越えると流動性が低下し均一な塗
布が困難である。アスベスト繊維は直径が0.01〜0.1μ
のものが、また超微粒子状無水シリカは粒子径が７〜16
μのものが、好ましく用いられる。The thixotropic agent is used to prevent sagging during construction, but it is effective for this purpose only in a specific thixotropic agent, that is, asbestos fiber or ultrafine particulate anhydrous silica.
The amount used is 0.2 to 5 parts by weight. If it is less than 0.2 parts by weight, sagging occurs, and if it exceeds 5 parts by weight, fluidity is lowered and uniform coating is difficult. Asbestos fibers have a diameter of 0.01-0.1μ
However, ultrafine particulate anhydrous silica has a particle size of 7 to 16
Those of μ are preferably used.
上記の揺変剤の特定量を使用することにより、得られた
制振材は垂直面の基材等に対しタレを生じることなくス
プレーにて塗布厚さ4mmまで塗布できる。By using a specific amount of the above thixotropic agent, the obtained damping material can be applied by spraying up to a coating thickness of 4 mm on a base material or the like on a vertical surface without causing sagging.
前記エポキシアクリレート樹脂、リン片状無機物、揺変
剤の配合物に必要に応じ炭酸カルシウム、水酸化マグネ
シウム、タルク等の充填剤やナフテン酸コバルト、オク
テン酸コバルト、アセチルアセトン、N,N′ジメチルア
ニリン等の促進剤、シリコーン等の界面活性剤等を添加
することも可能である。If necessary, a filler such as calcium carbonate, magnesium hydroxide, talc, etc., or a compound such as epoxy acrylate resin, scaly inorganic substance, thixotropic agent, cobalt naphthenate, cobalt octenoate, acetylacetone, N, N ′ dimethylaniline, etc. It is also possible to add a promoter, a surfactant such as silicone, and the like.
硬化剤としては、例えば55％メチルエチルケトンパーオ
キサイド、アセチルアセトンパーオキサイド、クメンハ
イドロパーオキサイド、メチルアセトアセテートパーオ
キサイド、シクロヘキサノンパーオキサイド、ベンゾイ
ルパーオキサイド等の有機過酸化物が用いられ、その配
合量は0.3〜4.0重量部である。Examples of the curing agent include 55% methyl ethyl ketone peroxide, acetylacetone peroxide, cumene hydroperoxide, methyl acetoacetate peroxide, cyclohexanone peroxide, and organic peroxides such as benzoyl peroxide. It is 4.0 parts by weight.
該制振材を塗布するにあたっては、圧送式のスプレー装
置を使用することが好ましい。また作業性は低下する
が、コテ塗り等の方法で塗布することも可能である。When applying the damping material, it is preferable to use a pressure-feeding type spray device. Although the workability is lowered, it is also possible to apply it by a method such as iron coating.
また必要に応じ制振材と基材等の密着性を向上させるた
め事前に基材に対し、ウレタン系、エポキシ系等のプラ
イマーを塗布することが可能である。If necessary, in order to improve the adhesion between the damping material and the base material, it is possible to apply a urethane-based or epoxy-based primer to the base material in advance.
以上のように、本発明の制振材は実施例に示すごとく70
〜140℃の測定温度範囲において、Ｂ＆Ｋ複素粘弾性測
定法より、複合損出係数が0.1以上であり、顕著な制振
効果が認められる。すなわち多層の塗膜を組み合せる必
要がなく、使用温度範囲が広く、さらに耐食性、耐衝撃
性、冷熱サイクルにおける密着性の優れたスプレー施工
に適した新規の無溶剤型の制振材であり、施工の際に垂
直基材に対してもタレを生ぜず、自動車、船舶、事務機
器等の駆動部より発生する振動による騒音を低下させる
材料として工業的に極めて有用である。As described above, the damping material of the present invention is 70
From the B & K complex viscoelasticity measurement method, the composite loss coefficient is 0.1 or more in the measurement temperature range of to 140 ° C., and a remarkable vibration damping effect is recognized. That is, there is no need to combine multi-layer coatings, a wide operating temperature range, corrosion resistance, impact resistance, a new solvent-free damping material suitable for spraying with excellent adhesion in cold and heat cycles, It is industrially very useful as a material that does not cause sagging even on a vertical base material during construction and reduces noise due to vibration generated from a drive unit of an automobile, a ship, office equipment or the like.
以下に実施例および比較例を示して本発明およびその効
果を具体的に説明する。The present invention and its effects will be specifically described below with reference to Examples and Comparative Examples.
実施例１〜６、比較例１〜３、比較例６および７ ビスフェノールＡ型エポキシアクリレート樹脂であるエ
スターH6700〔商品名、三井東圧化学（株）製〕、ノボ
ラック型エポキシアクリレート樹脂であるエスターH810
0〔商品名、三井東圧化学（株）製〕、リン片無機物と
してマイカ、揺変剤としてアスベスト繊維、超微粒子状
無水シリカ、ポリエチレン繊維、チクソトロピック塩基
性カルシウムスルホネート、促進剤として６％ナフテン
酸コバルト、硬化剤として55％メチルエチルケトンパー
オキサイドを表１に示したとおりに配合して制振材を調
製した。Examples 1 to 6, Comparative Examples 1 to 3, Comparative Examples 6 and 7 Esther H6700 [trade name, manufactured by Mitsui Toatsu Chemicals, Inc.] which is a bisphenol A type epoxy acrylate resin, and Esther H810 which is a novolac type epoxy acrylate resin.
0 (trade name, manufactured by Mitsui Toatsu Chemicals, Inc.), mica as a piece of phosphorus flakes, asbestos fiber as a thixotropic agent, ultrafine particulate anhydrous silica, polyethylene fiber, thixotropic basic calcium sulfonate, 6% naphthene as an accelerator A vibration damping material was prepared by mixing cobalt acid and 55% methyl ethyl ketone peroxide as a curing agent as shown in Table 1.
これらの制振材を圧送式エアースプレーガン（口径3m
m、空気圧4kg/mm2）を用いて、第１図の厚さ1.2mmの鋼
板製の自動車のオイルパンの外面に硬化時の厚みが約2.
5mmとなるように塗布し、約３時間で常温硬化をした。
その後、50℃で30分後硬化させ、試験体とした。These damping materials are pressure-fed air spray guns (caliber 3m
m, air pressure 4 kg / mm 2 ) and the thickness when cured on the outer surface of the 1.2 mm thick steel plate automobile oil pan of Fig. 1 is about 2.
It was applied so as to have a thickness of 5 mm and cured at room temperature for about 3 hours.
Then, it was post-cured at 50 ° C. for 30 minutes to obtain a test body.
制振材の評価は以下の項目につき行なった。The damping material was evaluated for the following items.
１）スプレー作業性 塗布厚み2.5mmとなるように上記スプレーガンを用いて
塗布を行ない、均一塗布性（外観の凸凹）および第１図
の立ちあがり部の制振材のたれ性（塗布30分後のたれ外
観）を評価した。1) Spray workability The above spray gun was used to apply the coating so that the coating thickness would be 2.5 mm, and the uniform coating property (unevenness of appearance) and the sagging property of the damping material at the rising portion of Fig. 1 (after 30 minutes of application) The dripping appearance) was evaluated.
２）耐衝撃性（デュポン法） 重さ1kgの鋼球を高さ1mの位置より、制振材付き鋼板の
制振材面に落下させ、制振材の外観を評価した。2) Impact resistance (DuPont method) A steel ball with a weight of 1 kg was dropped from the height of 1 m onto the damping material surface of the steel sheet with damping material, and the appearance of the damping material was evaluated.
３）冷熱サイクルにおける密着性 制振材付き鋼板を、25℃３時間、−40℃３時間、
25℃３時間、150℃３時間の冷熱サイクル試験を30サ
イクル行ない外観を判定した。3) Adhesion in cooling / heating cycle Steel plate with damping material was placed at 25 ℃ for 3 hours, -40 ℃ for 3 hours,
The appearance was judged by conducting 30 cycles of a thermal cycle test at 25 ° C. for 3 hours and 150 ° C. for 3 hours.
４）耐食性 制振材付き鋼板を、40℃の５％食塩水に６ヶ月間、およ
び50℃のエンジンオイルに６ヶ月間浸漬し外観を判定し
た。4) Corrosion resistance The steel sheet with damping material was immersed in 5% saline solution at 40 ° C for 6 months and in engine oil at 50 ° C for 6 months, and the appearance was evaluated.
５）複合損失係数 制振材付き鋼板の40〜140℃における複合損失係数を、5
00HzにおいてＢ＆Ｋ複素粘弾性測定装置にて測定した。5) Composite loss coefficient The composite loss coefficient of the steel sheet with damping material at 40 to 140 ° C is 5
It was measured with a B & K complex viscoelasticity measuring device at 00 Hz.
上記１）〜４）の結果を表３に、５）の結果を第２図に
示す。The results of 1) to 4) above are shown in Table 3, and the result of 5) is shown in FIG.
比較例４および５ オルソフタル酸系不飽和ポリエステル樹脂であるエスタ
ーG13〔商品名、三井東圧化学（株）製〕、イソフタル
酸系不飽和ポリエステル樹脂エスターR280〔商品名、三
井東圧化学（株）製〕、リン片状無機物としてマイカ、
促進剤としてナフテン酸コバルト、硬化剤としてメチル
エチルケトンパーオキサイドを表２の配合によって配合
して制振材を調製した。Comparative Examples 4 and 5 Esther G13 (trade name, manufactured by Mitsui Toatsu Chemicals, Inc.), which is an orthophthalic acid-based unsaturated polyester resin, and isostar acid unsaturated polyester resin Ester R280 (trade name, Mitsui Toatsu Chemicals, Inc.) ], Mica as a flaky inorganic substance,
A damping material was prepared by blending cobalt naphthenate as an accelerator and methyl ethyl ketone peroxide as a curing agent according to the formulation shown in Table 2.
これらの制振材を実施例１におけると同様に評価した結
果を表３および第３図に示した。The results of evaluating these damping materials in the same manner as in Example 1 are shown in Table 3 and FIG.
第１図はスプレー作業性評価に用いられる自動車のオイ
ルパンの形状を示す模式断面図、第２図は実施例１〜３
および比較例１および２の制振材の複合損失係数の測定
結果を示すグラフ、第３図は比較例４および５の制振材
の複合損失係数の測定結果を示すグラフである。FIG. 1 is a schematic cross-sectional view showing the shape of an oil pan of an automobile used for spray workability evaluation, and FIG. 2 is Examples 1 to 3.
And a graph showing the measurement results of the composite loss coefficient of the vibration damping materials of Comparative Examples 1 and 2, and FIG. 3 is a graph showing the measurement results of the composite loss coefficient of the vibration damping materials of Comparative Examples 4 and 5.
フロントページの続き (72)発明者 大串 正見 神奈川県平塚市徳延490 Ａ２−506号 (56)参考文献 特開 昭54−15940（ＪＰ，Ａ) 特開 昭54−103433（ＪＰ，Ａ) 特開 昭54−113631（ＪＰ，Ａ) 特開 昭55−17533（ＪＰ，Ａ) 特開 昭58−210965（ＪＰ，Ａ) 特開 昭57−65759（ＪＰ，Ａ) 特開 昭57−167360（ＪＰ，Ａ) 特開 昭57−55970（ＪＰ，Ａ)Front page continuation (72) Inventor Masami Ogushi No. 490 A2-506, Tokunobu, Hiratsuka City, Kanagawa Prefecture (56) References JP 54-15940 (JP, A) JP 54-103433 (JP, A) JP JP-A-54-113631 (JP, A) JP-A-55-17533 (JP, A) JP-A-58-210965 (JP, A) JP-A-57-65759 (JP, A) JP-A-57-167360 (JP , A) JP 57-55970 (JP, A)
Claims (1)
フェノールＦ型エポキシ化合物またはノボラック型エポ
キシ化合物と（メタ）アクリル酸とのプレポリマーを、
架橋剤としてのビニルモノマーに溶解したエポキシアク
リレート系樹脂100重量部当り、リン片状無機物を10〜8
0重量部、硬化剤を0.3〜4.0重量部およびアスベスト繊
維もしくは超微粒子状無水シリカからなる揺変剤を0.2
〜５重量部の割合で含有してなる、塗膜が一層であるこ
とを特徴とする制振材。1. A prepolymer of a bisphenol A type epoxy compound, a bisphenol F type epoxy compound or a novolac type epoxy compound and (meth) acrylic acid,
10 to 8 parts of scaly inorganic material per 100 parts by weight of epoxy acrylate resin dissolved in vinyl monomer as a cross-linking agent
0 parts by weight, 0.3 to 4.0 parts by weight of a hardening agent and 0.2 parts of a thixotropic agent composed of asbestos fibers or ultrafine particulate anhydrous silica.
A damping material, characterized in that the coating film is a single layer, which is contained in a proportion of from 5 to 5 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157186A JPH0684481B2 (en) | 1986-07-05 | 1986-07-05 | Damping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157186A JPH0684481B2 (en) | 1986-07-05 | 1986-07-05 | Damping material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6315864A JPS6315864A (en) | 1988-01-22 |
| JPH0684481B2 true JPH0684481B2 (en) | 1994-10-26 |
Family
ID=15644075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61157186A Expired - Lifetime JPH0684481B2 (en) | 1986-07-05 | 1986-07-05 | Damping material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0684481B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02227476A (en) * | 1989-03-01 | 1990-09-10 | Mitsubishi Heavy Ind Ltd | Surface-protection coating material for vibration-damping material to be attached to ship hull |
| JPH03102639U (en) * | 1990-02-07 | 1991-10-25 | ||
| US6803414B2 (en) * | 1999-09-29 | 2004-10-12 | Mitsubishi Fuso Truck And Bus Corporation | Damping resin composition and damping resin article for structure using the resin composition |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5415940A (en) * | 1977-07-04 | 1979-02-06 | Kansai Paint Co Ltd | Vibration insulation |
| JPS54103433A (en) * | 1978-02-02 | 1979-08-14 | Kansai Paint Co Ltd | Vibration insulation |
| JPS54113631A (en) * | 1978-02-27 | 1979-09-05 | Kansai Paint Co Ltd | Vibration damping |
| JPS5517533A (en) * | 1978-07-26 | 1980-02-07 | Kansai Paint Co Ltd | Vibrationnproof method |
| JPS5755970A (en) * | 1980-09-19 | 1982-04-03 | Nippon Zeon Co Ltd | Self-extinguishing,aqueous damping paint composition |
| JPS5765759A (en) * | 1980-10-08 | 1982-04-21 | Toyo Tire & Rubber Co Ltd | Vibration-damping paint |
| JPS57167360A (en) * | 1981-04-08 | 1982-10-15 | Kuraray Co Ltd | Vibration-damping paint |
| JPS58210865A (en) * | 1982-06-03 | 1983-12-08 | 株式会社富士電機総合研究所 | Electromagnetic type crushing treating device treating material to be crushed of small bulk density |
-
1986
- 1986-07-05 JP JP61157186A patent/JPH0684481B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6315864A (en) | 1988-01-22 |
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