JPH0655859B2 - Damping material composition - Google Patents
Damping material compositionInfo
- Publication number
- JPH0655859B2 JPH0655859B2 JP61214320A JP21432086A JPH0655859B2 JP H0655859 B2 JPH0655859 B2 JP H0655859B2 JP 61214320 A JP61214320 A JP 61214320A JP 21432086 A JP21432086 A JP 21432086A JP H0655859 B2 JPH0655859 B2 JP H0655859B2
- Authority
- JP
- Japan
- Prior art keywords
- vibration damping
- present
- examples
- elastomer
- resin
- 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)
- Vibration Prevention Devices (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は制振材組成物に関し、詳しくは広範囲な温度領
域において優れた制振性を有する制振材組成物に関す
る。The present invention relates to a vibration damping composition, and more particularly to a vibration damping composition having excellent vibration damping properties in a wide temperature range.
一般に、自動車においては、エンジンまたは走行路面よ
り伝達される振動、騒音を吸収してこれを緩和抑制する
ための制振材料が、車体の床部等に施工されている。か
かる制振材料として、例えば、アスファルト等の瀝青物
にアスベスト、タルクなどの無機充てん材を加えたシー
ト状の制振材料が広く用いられている。Generally, in automobiles, a vibration damping material for absorbing and suppressing vibrations and noises transmitted from the engine or the road surface and suppressing the vibrations is installed on the floor of the vehicle body or the like. As such a vibration damping material, for example, a sheet-shaped vibration damping material in which a bituminous material such as asphalt is added with an inorganic filler such as asbestos or talc is widely used.
しかし、この瀝青物系のシート状制振材料においては、
その重量が非常に大きく、また夏場などの高温時には、
シート同士が触着して分離できなかったり、あるいは冬
場などの低温時には、逆にシートが硬化して施工性に劣
る等の問題点がある。However, in this bituminous sheet-shaped damping material,
Its weight is very large, and at high temperatures such as summer,
There is a problem that the sheets cannot be separated because they are in contact with each other, or the sheets are hardened and the workability is deteriorated when the temperature is low such as in winter.
さらに、この瀝青物系のシート状制振材料は、損失係数
の大きい領域すなわち制振性に優れる温度領域が狭いと
いう問題点がある。Further, this bituminous sheet-shaped vibration damping material has a problem that a region having a large loss coefficient, that is, a temperature region having excellent vibration damping property is narrow.
本発明は、前述した施工性、制振性などに関する問題点
を解決し、広範囲な温度領域において良好な制振性を有
する制振材組成物を提供することを目的とする。An object of the present invention is to solve the above-mentioned problems relating to workability and vibration damping property, and to provide a vibration damping composition having good vibration damping property in a wide temperature range.
上記問題点は、 ａ）−４０℃以下のガラス転移点を有するエラストマー
（Ａ） １５〜７０重量％、 ｂ）−４０〜４０℃のガラス転移点を有するエラストマ
ー（Ｂ）、−４０〜４０℃の流動点もしくは軟化点を有
する粘着付与樹脂（Ｃ）および−４０〜４０℃の流動点
を有する可塑剤（Ｄ）の群から選択される少くとも１種 １５〜７０重量％、 および ｃ）６０℃以上の軟化点を有する粘着付与樹脂（Ｅ） １５〜７０重量％、 を含むことを特徴とする本発明の制振材組成物によって
解決される。The problems are as follows: a) 15 to 70% by weight of an elastomer (A) having a glass transition point of -40 ° C or less, b) an elastomer (B) having a glass transition point of -40 to 40 ° C, -40 to 40 ° C. 15-70% by weight, and at least one selected from the group of tackifying resins (C) having a pour point or softening point of (C) and plasticizers (D) having a pour point of -40 to 40 ° C, and c) 60. The tackifying resin (E) having a softening point of not lower than 0 ° C. is included in an amount of 15 to 70% by weight, and the vibration damping composition of the present invention is solved.
本発明において用いられるエラストマー（Ａ）として
は、例えばスチレン−ブタジエンブロック共重合体（Ｓ
ＢＳ）、スチレン−イソプレンブロック共重合体（ＳＩ
Ｓ）等のスチレン系熱可塑性エラストマー、天然ゴム、
スチレン−ブタジエンゴム（ＳＢＲ）、ポリイソプレン
イソブチレンゴム（ＩＩＲ）、ポリイソプレンゴム（Ｉ
Ｒ）、エチレン−プロピレンゴム（ＥＰＴ、ＥＰＤ
Ｍ）、アクリロニトリル−ブタジエンゴム（ＮＢＲ）、
ブタジエンゴム（ＢＲ）、クロロプレンゴム（ＣＲ）等
のゴムを挙げることができ、特にＳＢＳ、ＳＩＳ、ＩＩ
Ｒ、ＥＰＴ、ＥＰＤＭが好ましい。Examples of the elastomer (A) used in the present invention include styrene-butadiene block copolymer (S
BS), styrene-isoprene block copolymer (SI
S) and other styrene-based thermoplastic elastomers, natural rubber,
Styrene-butadiene rubber (SBR), polyisoprene isobutylene rubber (IIR), polyisoprene rubber (I
R), ethylene-propylene rubber (EPT, EPD
M), acrylonitrile-butadiene rubber (NBR),
Examples thereof include rubbers such as butadiene rubber (BR) and chloroprene rubber (CR), and particularly SBS, SIS, II.
R, EPT and EPDM are preferred.
上記エラストマー（Ａ）は、−４０℃以下のガラス転移
点を有し、また、その使用割合は、本発明の制振材組成
物全体に対し１５〜７０重量％である。The elastomer (A) has a glass transition point of −40 ° C. or lower, and the usage ratio thereof is 15 to 70% by weight based on the whole vibration damping composition of the present invention.
また本発明において用いられるエラストマー（Ｂ）とし
ては、例えば１,２ポリブタジエン、エチレン−エチル
アクリレート共重合体、エチレン−酢酸ビニル共重合体
等を挙げることができる。Examples of the elastomer (B) used in the present invention include 1,2 polybutadiene, ethylene-ethyl acrylate copolymer, ethylene-vinyl acetate copolymer and the like.
本発明において用いられる粘着付与樹脂（Ｃ）として
は、例えばロジン糸樹脂、テルペン系樹脂、クマロン・
インデン系樹脂等を挙げることができる。Examples of the tackifying resin (C) used in the present invention include rosin thread resin, terpene resin, coumarone
Examples thereof include indene resin.
本発明において用いられる可塑剤（Ｄ）としては、例え
ばエポキシ系可塑剤、ポリエステル系可塑剤、フタル酸
系可塑剤等を挙げることができ、特にエポキシ系可塑剤
が好ましい。Examples of the plasticizer (D) used in the present invention include epoxy plasticizers, polyester plasticizers, phthalic acid plasticizers and the like, and epoxy plasticizers are particularly preferable.
上記エラストマー（Ｂ）のガラス転移点、粘着付与樹脂
（Ｃ）の流動点もしくは軟化点、および可塑剤（Ｄ）の
流動点は、それぞれ−４０〜４０℃の温度範囲にある。The glass transition point of the elastomer (B), the pour point or softening point of the tackifying resin (C), and the pour point of the plasticizer (D) are in the temperature range of −40 to 40 ° C., respectively.
また、エラストマー（Ｂ）、粘着付与樹脂（Ｃ）および
可塑剤（Ｄ）は、１種単独でまたは２種以上混合して用
いられ、その使用割合は、本発明の制振材組成物全体に
対し１５〜７０重量％である。Further, the elastomer (B), the tackifying resin (C) and the plasticizer (D) are used alone or in combination of two or more, and the use ratio thereof is the same as that of the entire vibration damping composition of the present invention. It is 15 to 70% by weight.
さらに、本発明において用いられる粘着付与樹脂（Ｅ）
としては、例えばクマロン・インデン系樹脂、テルペン
変性系樹脂、脂肪族・芳香族系石油樹脂等を挙げること
ができる。Furthermore, the tackifying resin (E) used in the present invention
Examples thereof include coumarone / indene resin, terpene-modified resin, and aliphatic / aromatic petroleum resin.
上記粘着付与樹脂（Ｅ）は、６０℃以上の軟化点を有
し、また、その使用割合は、本発明の制振材組成物全体
に対し１５〜７０重量％である。The tackifying resin (E) has a softening point of 60 [deg.] C. or higher, and the usage ratio thereof is 15 to 70% by weight based on the whole vibration damping composition of the present invention.
本発明においては、上記粘着付与樹脂（Ｅ）とともにフ
エノール樹脂、ケトン樹脂などの軟化点が６０℃以上の
樹脂を１種もしくは２種以上併用することができる。In the present invention, one kind or two or more kinds of resins having a softening point of 60 ° C. or higher such as a phenol resin and a ketone resin can be used together with the tackifying resin (E).
さらに、本発明の制振材組成物には、上記物質以外に必
要に応じて、アスファルト等の瀝青質物質、ナフテン系
オイル、パラフィン系オイル、アロマ系オイル等のプロ
セスオイル、または炭酸カルシウム、タルク、クレー、
シリカ、マイカ、カーボンブラック等の無機充てん剤、
さらに酸化防止剤、紫外線吸収剤などの安定剤を添加し
てもよい。Further, in addition to the above substances, the damping material composition of the present invention contains bituminous substances such as asphalt, process oils such as naphthenic oils, paraffinic oils and aroma oils, or calcium carbonate and talc. ,clay,
Inorganic fillers such as silica, mica, carbon black,
Further, stabilizers such as antioxidants and ultraviolet absorbers may be added.
また、本発明の制振材組成物には、制振性能を所定のレ
ベルより低下させない限りにおいて、加硫剤や発泡剤を
添加してもよく、さらには他の熱可塑性プラスチック、
例えばポリブテン１、ポリエチレン、アタクチックポリ
プロピレンアイオノマー、スチレン系樹脂等の１種また
は２種以上を混合してもよい。Further, to the vibration damping composition of the present invention, a vulcanizing agent or a foaming agent may be added as long as the vibration damping performance is not lowered below a predetermined level, and further other thermoplastics,
For example, one kind or two or more kinds of polybutene 1, polyethylene, atactic polypropylene ionomer, styrene resin and the like may be mixed.
本発明の制振材組成物の各成分は、熱ロール、加圧式ニ
ーダー、バンバリーミキサーまたは押出機などを用いて
加熱下において混合され、またカレンダーロールや押出
機を用いてシート状に成形したり、射出成形機で所望の
形状に成形することができる。The respective components of the vibration damping composition of the present invention are mixed under heating using a heat roll, a pressure kneader, a Banbury mixer, an extruder, or the like, or molded into a sheet using a calender roll or an extruder. It can be molded into a desired shape with an injection molding machine.
以下、実施例によって本発明を具体的に説明するが、実
施例によって本発明の範囲が制限されるものではない。Hereinafter, the present invention will be specifically described with reference to examples, but the scope of the present invention is not limited by the examples.
以下の記載において「％」は重量％を意味する。In the following description, "%" means% by weight.
実施例１ エラストマー（Ａ）としてスチレン−ブタジエンブロッ
ク共重合体（ＪＳＲ ＴＲ２０００、日本合成ゴム(株)
製）５０％と、可塑剤（Ｄ）としてエポキシ化大豆油
（エポサイザーＷ１００Ｓ、大日本インキ化学工業(株)
製)２５％と、粘着付与樹脂(Ｅ)としてクマロン樹脂
（クマロンＧ９０、新日鉄化学(株)製）２５％とを、ラ
ボプラストミル（東洋精機(株)製）を用いて１３０℃に
て３０分間混合し、組成物を得た。この組成物を加熱プ
レス機を用い、１２０℃にてプレス成形を行ない、厚み
約２mmのシート状サンプルを得た。このシート状サンプ
ルの損失正接（tanδ）を、粘弾性測定装置（ＲＭＳ、
レオメトリックス社製）を用い、周波数１５０Hz、温度
−５０〜＋１００℃、昇温速度２．５℃／分の条件下で
測定した。その結果を第１表に示す。Example 1 A styrene-butadiene block copolymer (JSR TR2000, manufactured by Japan Synthetic Rubber Co., Ltd.) as the elastomer (A)
50%, and epoxidized soybean oil (Epocizer W100S, Dainippon Ink and Chemicals, Inc.) as a plasticizer (D).
25% and coumarone resin (Coumaron G90, manufactured by Nippon Steel Chemical Co., Ltd.) 25% as a tackifying resin (E) at 30 ° C. using a Labo Plastmill (manufactured by Toyo Seiki Co., Ltd.) Mixed for minutes to obtain the composition. This composition was press-molded at 120 ° C. using a heating press machine to obtain a sheet-like sample having a thickness of about 2 mm. The loss tangent (tan δ) of this sheet-like sample was measured by a viscoelasticity measuring device (RMS,
(Manufactured by Rheometrics Co., Ltd.) under the conditions of a frequency of 150 Hz, a temperature of −50 to + 100 ° C., and a heating rate of 2.5 ° C./min. The results are shown in Table 1.
実施例２〜５、比較例１〜３ 使用したエラストマー(Ａ)ならびに(Ｂ)、可塑剤(Ｄ)お
よび粘着付与樹脂(Ｅ)の種類および／または混合割合を
第１表のとおりとした他は、実施例１と同様にして組成
物を調整し、さらに成形を行い、実施例につき４種、比
較例につき３種のシート状サンプルを形成した。そし
て、このサンプルについて実施例１と同様の方法で損失
正接を求めた。その結果を第１表に示す。Examples 2 to 5, Comparative Examples 1 to 3 The types and / or mixing ratios of the elastomers (A) and (B), the plasticizer (D) and the tackifying resin (E) used are as shown in Table 1. In the same manner as in Example 1, the composition was adjusted and further molded, thereby forming 4 kinds of sheet-like samples for Examples and 3 kinds for Comparative Examples. Then, the loss tangent of this sample was obtained by the same method as in Example 1. The results are shown in Table 1.
なお、比較例１は粘着付与樹脂(Ｅ)を含まない例、比較
例２はエラストマー(Ｂ)、粘着付与樹脂(Ｃ)および可塑
剤(Ｄ)のいずれも含まない例、比較例３はエラストマー
(Ａ)を含まない例である。Incidentally, Comparative Example 1 is an example containing no tackifying resin (E), Comparative Example 2 is an example containing no elastomer (B), tackifying resin (C) and plasticizer (D), and Comparative Example 3 is an elastomer.
This is an example not including (A).
比較例４ サンプルとして市販品のアスファルト系シートを用いた
他は、実施例１と同様にして損失正接の測定を行なっ
た。その結果を第１表に示す。Comparative Example 4 The loss tangent was measured in the same manner as in Example 1 except that a commercially available asphalt sheet was used as the sample. The results are shown in Table 1.
第１表の結果より、本発明の実施例１〜５においては、
比較例１〜４に比して損失正接（tanδ）が大きい値を
示す温度領域の広いことが明らかである。したがって、
実施例に示す組成物は、広い温度領域において良好な制
振性を示すことが判明した。 From the results of Table 1, in Examples 1 to 5 of the present invention,
It is clear that the temperature range in which the loss tangent (tan δ) shows a large value is wider than in Comparative Examples 1 to 4. Therefore,
It was found that the compositions shown in the examples show good vibration damping properties in a wide temperature range.
本発明の制振材組成物は、広範囲な温度領域において良
好な制振性および遮音性を有し、種々の制振部材、たと
えば自動車の床部材をはじめとして建材、各種機械部材
に有用である。INDUSTRIAL APPLICABILITY The vibration damping composition of the present invention has good vibration damping properties and sound insulating properties in a wide temperature range, and is useful for various vibration damping members such as automobile floor members, building materials, and various mechanical members. .
Claims (1)
エラストマー(Ａ) １５〜７０重量％、 ｂ）−４０〜４０℃のガラス転移点を有するエラストマ
ー(Ｂ)、−４０〜４０℃の流動点もしくは軟化点を有す
る粘着付与樹脂(Ｃ)および−４０〜４０℃の流動点を有
する可塑剤(Ｄ)の群から選択される少くとも１種 １５〜７０重量％、 および ｃ）６０℃以上の軟化点を有する粘着付与樹脂(Ｅ) １５〜７０重量％、 を含むことを特徴とする制振材組成物。1. A) 15-70% by weight of an elastomer (A) having a glass transition point of -40 ° C. or lower, b) an elastomer (B) having a glass transition point of -40-40 ° C., -40-40 ° C. 15 to 70% by weight, and at least one selected from the group consisting of a tackifying resin (C) having a pour point or a softening point of (C) and a plasticizer (D) having a pour point of -40 to 40 ° C, and c) 60. A damping material composition comprising 15 to 70% by weight of a tackifying resin (E) having a softening point of not less than 0 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61214320A JPH0655859B2 (en) | 1986-09-11 | 1986-09-11 | Damping material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61214320A JPH0655859B2 (en) | 1986-09-11 | 1986-09-11 | Damping material composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6369850A JPS6369850A (en) | 1988-03-29 |
| JPH0655859B2 true JPH0655859B2 (en) | 1994-07-27 |
Family
ID=16653804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61214320A Expired - Lifetime JPH0655859B2 (en) | 1986-09-11 | 1986-09-11 | Damping material composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0655859B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655470B2 (en) * | 1990-09-11 | 1994-07-27 | 株式会社河合楽器製作所 | Laminated sound insulation board |
| KR100521598B1 (en) * | 2002-07-26 | 2005-10-13 | 현대자동차주식회사 | Material of Anti-Vibration Rubber sheet for Automotive Floor |
| US7459494B2 (en) | 2002-07-31 | 2008-12-02 | The Procter & Gamble Company | Phase change solvents for thermoplastic elastomers |
| JP5441833B2 (en) * | 2009-07-03 | 2014-03-12 | 日東電工株式会社 | Door hole cover and vehicle door structure |
| JP2014073837A (en) * | 2009-07-03 | 2014-04-24 | Nitto Denko Corp | Door hole cover and door structure for vehicle |
| JP5562181B2 (en) * | 2010-09-03 | 2014-07-30 | 早川ゴム株式会社 | High damping rubber composition and use thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58176229A (en) * | 1982-04-12 | 1983-10-15 | Japan Synthetic Rubber Co Ltd | Vibration-damping rubber composition |
| JPS61225226A (en) * | 1985-03-29 | 1986-10-07 | Sumitomo Chem Co Ltd | Vibration and sound-proof rubber composition |
-
1986
- 1986-09-11 JP JP61214320A patent/JPH0655859B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58176229A (en) * | 1982-04-12 | 1983-10-15 | Japan Synthetic Rubber Co Ltd | Vibration-damping rubber composition |
| JPS61225226A (en) * | 1985-03-29 | 1986-10-07 | Sumitomo Chem Co Ltd | Vibration and sound-proof rubber composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6369850A (en) | 1988-03-29 |
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