JPH10219029A - Rubber composition for high-attenuation rubber support - Google Patents

Rubber composition for high-attenuation rubber support

Info

Publication number
JPH10219029A
JPH10219029A JP2155697A JP2155697A JPH10219029A JP H10219029 A JPH10219029 A JP H10219029A JP 2155697 A JP2155697 A JP 2155697A JP 2155697 A JP2155697 A JP 2155697A JP H10219029 A JPH10219029 A JP H10219029A
Authority
JP
Japan
Prior art keywords
rubber
resin
weight
composition
styrene
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
Application number
JP2155697A
Other languages
Japanese (ja)
Other versions
JP3753493B2 (en
Inventor
Atsushi Shimada
田 淳 島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP2155697A priority Critical patent/JP3753493B2/en
Publication of JPH10219029A publication Critical patent/JPH10219029A/en
Application granted granted Critical
Publication of JP3753493B2 publication Critical patent/JP3753493B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition having decreased temperature dependency of elastic modulus, enabling free setting of the attenuation at need and useful for a vibration isolation apparatus, etc., by adding a specific copolymer to a diene rubber. SOLUTION: This composition contains (A) 100 pts.wt. of a diene rubber, (B) >5 and <=50 pts.wt. of a thermoplastic elastomer copolymer containing styrene block and (C) 5-60 pts.wt. of a resin. Preferably, the component A is natural rubber, isoprene rubber, etc., the component B is a styrene-butadiene- styrene copolymer elastomer, etc., and the component C is a coumarone-indene resin having a softening point of >=100 deg.C, etc.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、弾性率の温度依存
性が低減され、かつ減衰性能を自由に設定することので
きる高減衰ゴム支承用ゴム組成物に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber composition for a high-damping rubber bearing in which the temperature dependence of the elastic modulus is reduced and the damping performance can be freely set.

【0002】[0002]

【従来の技術】近年、振動エネルギーの吸収装置、すな
わち、防振、除振、免震装置等が急速に普及しつつあ
る。このような吸収装置の一形態として、鋼板とゴム層
を交互に積層した免震用積層ゴムが挙げられる。免震用
積層ゴムは、鉛直方向には非常に硬い物体として振る舞
い、水平方向に対しては単体のゴム塊の場合と同様に大
きくずれて、柔らかい物体として振る舞うことから、例
えば建物等の支承体として用いた場合には、地面の揺れ
が直接建物等に伝わるのを抑制し、また、橋梁等のの支
承体として用いた場合には、橋梁を通行する車両等から
の震動を抑制し、共に建物、橋梁等の建造物を保護す
る。このような用途に用いるゴム組成物には、高減衰性
と、減衰性能が発揮される適用温度範囲(特に低温側)
が広いことが求められる。このため、ゴム組成物にカー
ボン等の充填剤や軟化点の高い樹脂を配合する、あるい
は、ゴム組成物中に使用するポリマーとしてTg(ガラ
ス転移点)の高いポリマーを用いることが行われてき
た。しかし、上述の方法により減衰性能を上げると、低
温特性の悪化が起こり、低温で硬くなり過ぎるため、寒
冷地での性能が劣るという問題があった。また、支承体
は四季を通じて外気に曝されるため季節間で性能が異な
るという問題が起こる。
2. Description of the Related Art In recent years, devices for absorbing vibration energy, that is, vibration isolating devices, vibration isolating devices, seismic isolation devices, and the like have been rapidly spreading. As one form of such an absorbing device, there is a seismic isolation laminated rubber in which a steel plate and a rubber layer are alternately laminated. Rubber bearings for seismic isolation behave as very hard objects in the vertical direction, and in the horizontal direction, behave as soft objects, as well as in the case of a single rubber block, so they can be used as bearing bodies in buildings, for example. When used as a bridge, the shaking of the ground is directly transmitted to buildings, etc., and when used as a support for bridges, etc., vibration from vehicles etc. passing through the bridge is suppressed, Protect buildings, bridges and other structures. The rubber composition used for such applications has a high damping property and an application temperature range in which the damping performance is exhibited (particularly at a low temperature side).
Must be wide. For this reason, a filler such as carbon or a resin having a high softening point has been blended into the rubber composition, or a polymer having a high Tg (glass transition point) has been used as a polymer used in the rubber composition. . However, when the damping performance is increased by the above-described method, the low-temperature characteristics deteriorate, and the hardness becomes too low at a low temperature, so that there is a problem that the performance in a cold region is inferior. Further, since the bearing body is exposed to the outside air throughout the four seasons, there is a problem that the performance differs between the seasons.

【0003】[0003]

【発明が解決しようとする課題】本発明は、上記実情を
鑑みてなされたものであり、その目的は、弾性率の温度
依存性が低減され、かつ、減衰性の程度を必要に応じて
適宜自由に設定できる高減衰ゴム支承用ゴム組成物を提
供する。
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to reduce the temperature dependence of the elastic modulus and to appropriately adjust the degree of damping as required. Provided is a rubber composition for a high damping rubber bearing that can be freely set.

【0004】[0004]

【課題を解決するための手段】すなわち、本発明は、ジ
エン系ゴム100重量部に対して、スチレンブロックを
有する熱可塑性エラストマー共重合体5超〜50重量部
を含有する高減衰ゴム支承用ゴム組成物を提供する。
That is, the present invention relates to a rubber for a high damping rubber bearing, comprising more than 5 to 50 parts by weight of a thermoplastic elastomer copolymer having a styrene block with respect to 100 parts by weight of a diene rubber. A composition is provided.

【0005】また、前記ジエン系ゴム100重量部に対
して、さらに樹脂5〜60重量部を含有する高減衰ゴム
支承用ゴム組成物を提供する。
Further, there is provided a rubber composition for supporting a high-damping rubber, which further contains 5 to 60 parts by weight of a resin with respect to 100 parts by weight of the diene rubber.

【0006】[0006]

【発明の実施の形態】以下、本発明を詳細に説明する。
本発明の高減衰ゴム支承用ゴム組成物(以下、本発明の
組成物と記す)は、ジエン系ゴムにスチレンブロックを
有する熱可塑性エラストマーを配合し、これにより、減
衰特性を低下させずに、弾性率の温度依存性を低く抑え
ていることが特徴である。また、本発明の組成物は、さ
らに樹脂を配合し、樹脂の種類を選ぶことにより、弾性
率の温度依存性を低く抑えつつ、高減衰ゴム支承用ゴム
組成物として用いられるその用途や使用するゴムの組成
により必要となる減衰性能に併せて、組成物の減衰性を
適宜自由に設定できるということが特徴である。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The rubber composition for high-damping rubber bearing of the present invention (hereinafter, referred to as the composition of the present invention) comprises a diene-based rubber and a thermoplastic elastomer having a styrene block, whereby the damping property is not reduced. The feature is that the temperature dependence of the elastic modulus is kept low. In addition, the composition of the present invention further contains a resin, and by selecting the type of the resin, while suppressing the temperature dependency of the elastic modulus to a low level, uses and uses of the rubber composition for a high damping rubber bearing. It is characterized in that the damping property of the composition can be freely set as appropriate in accordance with the damping performance required by the rubber composition.

【0007】本発明で用いるジエン系ゴムとしては、天
然ゴム(NR)、イソプレンゴム(IR)、ブタジエン
ゴム(BR)、1,2−ポリブタジエンゴム(1,2−
BR)、スチレン・ブタジエンゴム(SBR)、クロロ
プレンゴム(CR)、ブチルゴム(IIR)、アクリロ
ニトリル・ブタジエンゴム(NBR、NIR、NBI
R)、ハロゲン化ブチルゴム(Br−IIR、Cl−I
IR)、エチレン・プロピレンゴム(EPDM)等の種
々のゴムをあげることができる。なかでも、減衰性、加
工性等のバランスが良いため、NR、IRが好適に用い
られる。これらのジエン系ゴムは単独もしくは2種以上
を併用してもよい。
The diene rubber used in the present invention includes natural rubber (NR), isoprene rubber (IR), butadiene rubber (BR), and 1,2-polybutadiene rubber (1,2-
BR), styrene-butadiene rubber (SBR), chloroprene rubber (CR), butyl rubber (IIR), acrylonitrile-butadiene rubber (NBR, NIR, NBI)
R), halogenated butyl rubber (Br-IIR, Cl-I)
IR) and various rubbers such as ethylene-propylene rubber (EPDM). Above all, NR and IR are preferably used because they have a good balance of attenuation and workability. These diene rubbers may be used alone or in combination of two or more.

【0008】本発明で用いる熱可塑性エラストマーは、
スチレンブロック、即ちポリスチレンをブロック共重合
体の共重合成分として有するものである。特にスチレン
ブロックに挟まれてイソプレンゴムやブタジエンゴム等
のエラストマー成分が共重合結合しているものは、この
構造により、全体としては樹脂として振る舞うものの、
スチレンブロックに挟まれたエラストマー成分が柔軟で
あるため、全体として低温時も硬くなりすぎないので好
ましい。このためこの熱可塑性エラストマーを含有する
本発明の組成物の弾性率は、低温時でも高くなりすぎる
ことなく、温度依存性が低減されるという効果を有す
る。本発明で用いるスチレンブロックを有する熱可塑性
エラストマーは、その組成として、ポリスチレン/共重
合系ポリマーの重量比が10/90〜50/50である
のが好ましい。10/90未満では、本発明の組成物の
減衰性能が悪化するので好ましくない。50/50超で
は、ポリスチレンの比が高すぎて本発明の組成物の温度
依存性が悪化するので好ましくない。上記スチレンブロ
ックを有する熱可塑性エラストマーとしては、スチレン
・ブタジエン・スチレン共重合エラストマー(SB
S)、スチレン・イソプレン・スチレン共重合エラスト
マー(SIS)、スチレン・エチレン・ブチレン・スチ
レン共重合エラストマー(SEBS)、スチレン・エチ
レン・プロピレン・スチレン共重合エラストマー(SE
PS)を挙げることができる。これらは単独もしくは2
種以上ブレンドして用いてもよい。上記熱可塑性エラス
トマーの配合量は、前記ジエン系ゴム100重量部に対
して、5超〜50重量部、特に10〜40重量部である
のが好ましい。5重量部以下では本発明の組成物の温度
依存性を十分低減できず、また、50重量部超では、本
発明の組成物の減衰特性が低下する。
[0008] The thermoplastic elastomer used in the present invention comprises:
It has a styrene block, that is, polystyrene as a copolymer component of the block copolymer. Particularly, elastomeric components such as isoprene rubber and butadiene rubber are copolymerized and bound between styrene blocks, although this structure acts as a resin as a whole,
It is preferable because the elastomer component sandwiched between the styrene blocks is flexible and does not become too hard even at low temperature as a whole. Therefore, the modulus of elasticity of the composition of the present invention containing this thermoplastic elastomer does not become too high even at a low temperature, and has an effect that the temperature dependency is reduced. The thermoplastic elastomer having a styrene block used in the present invention preferably has a composition in which the weight ratio of polystyrene / copolymer is 10/90 to 50/50. If it is less than 10/90, the damping performance of the composition of the present invention deteriorates, which is not preferable. If it exceeds 50/50, the ratio of polystyrene is too high, and the temperature dependency of the composition of the present invention is undesirably deteriorated. As the thermoplastic elastomer having the styrene block, styrene-butadiene-styrene copolymer elastomer (SB
S), styrene / isoprene / styrene copolymer elastomer (SIS), styrene / ethylene / butylene / styrene copolymer elastomer (SEBS), styrene / ethylene / propylene / styrene copolymer elastomer (SE)
PS). These can be used alone or 2
More than one kind may be blended and used. The amount of the thermoplastic elastomer is preferably more than 5 to 50 parts by weight, particularly 10 to 40 parts by weight, based on 100 parts by weight of the diene rubber. If the amount is less than 5 parts by weight, the temperature dependency of the composition of the present invention cannot be sufficiently reduced, and if it exceeds 50 parts by weight, the damping characteristics of the composition of the present invention deteriorate.

【0009】高減衰ゴム支承用ゴム組成物は、その用途
により必要な減衰性能(ヒステリシスロス)が決まって
くる。そこで、上述のように弾性率の温度依存性が改善
された本発明の組成物に、さらに樹脂を併用し、樹脂の
種類を選択することにより、その減衰性能のレベルを適
宜設定することができる。本発明に用いられる樹脂とし
ては、一般にゴムに配合される樹脂を用いることができ
る。このような樹脂としては、石油系樹脂、天然系樹
脂、ロジン系樹脂等が挙げられる。石油系樹脂として
は、ソルベントナフサ中に含まれているクマロン、イン
デン、スチレン等を共重合させたクマロンプラスチッ
ク、石油類のスチームクラッキングにより、エチレン、
プロピレン等を製造するエチレンプラントから副生する
分解油留分に含まれるジオレフィンおよびモノオレフィ
ン類を単離せずに重合した樹脂等を挙げることができ
る。天然系樹脂としては、セラック等の動物性天然樹
脂、アラビアゴム等の植物性天然ゴム樹脂、ダンマー
類、東インド類、コーパル類等の植物性天然樹脂、天然
炭化水素樹脂、アカロイド、エレミ、マスチック、サン
ダラック、トラガカントゴム、うるし等を挙げることが
できる。さらにロジン系樹脂としては、アルキド樹脂と
共重合させたロジン変性アルキド樹脂等を挙げることが
できる。配合する樹脂により減衰性能を高めるために
は、例えば、クマロンインデン、C5 /C9 共重合樹脂
等の樹脂を配合すればよい。また、より高い減衰性能を
得るためには、例えば、軟化点が100℃以上のクマロ
ンインデン、C5 /C9 共重合樹脂等の樹脂を配合すば
よい。上記樹脂の配合量は、ジエン系ゴム100重量部
に対して、5〜60重量部、特に、10〜50重量部で
あるのが好ましい。5重量部未満であると、減衰性が不
足し、60重量部超であると、クリープ性が大きくな
る。
The required damping performance (hysteresis loss) of a rubber composition for a high-damping rubber bearing is determined depending on its use. Therefore, the composition of the present invention in which the temperature dependency of the elastic modulus has been improved as described above, and further a resin is used in combination, and by selecting the type of the resin, the level of the damping performance can be appropriately set. . As the resin used in the present invention, a resin generally mixed with rubber can be used. Examples of such a resin include a petroleum resin, a natural resin, and a rosin resin. As petroleum-based resins, cumarone contained in solvent naphtha, coumarone plastic in which indene, styrene, etc. are copolymerized, steam cracking of petroleum, ethylene,
Examples include resins obtained by polymerizing diolefins and monoolefins contained in a cracked oil fraction by-produced from an ethylene plant for producing propylene or the like without isolation. Examples of the natural resin include animal natural resins such as shellac, vegetable natural rubber resins such as gum arabic, vegetable natural resins such as dammers, East India, and copals, natural hydrocarbon resins, acaroids, elemi, mastics. , Sandarac, tragacanth rubber, urushi and the like. Examples of the rosin-based resin include a rosin-modified alkyd resin copolymerized with an alkyd resin. In order to increase the damping performance by the resin to be blended, for example, a resin such as coumarone indene or a C 5 / C 9 copolymer resin may be blended. Further, in order to obtain higher damping performance, for example, a resin such as coumarone indene having a softening point of 100 ° C. or higher and a C 5 / C 9 copolymer resin may be blended. The compounding amount of the above resin is preferably 5 to 60 parts by weight, particularly preferably 10 to 50 parts by weight, based on 100 parts by weight of the diene rubber. If the amount is less than 5 parts by weight, the damping property is insufficient, and if it is more than 60 parts by weight, the creep property is increased.

【0010】上記成分に加え、本発明の組成物には、本
発明の特徴を損なわない範囲において、通常ゴムに配合
される添加剤を配合してよい。このような添加剤とし
て、補強剤、充填剤、可塑剤、加硫剤、加硫促進剤、老
化防止剤等が挙げられる。補強剤もしくは充填剤として
は、カーボン、シリカ、炭酸カルシウム、クレー、タル
ク、フェノール樹脂等が挙げられる。可塑剤としては、
プロセスオイル、石油樹脂、DOP(ジオクチルフタレ
ート)、ジオクチルセバケート等の合成可塑剤、植物
油、液状ゴム等が挙げられる。加硫剤としては、硫黄
や、テトラメチルチウラムジスルフィド(TMTD),
テトラエチルチウラムジスルフィド(TETD),ジペ
ンタメチレンチウラムジスルフィド(DPTT)等の有
機含硫黄化合物、ジクミルペルオキシド等の有機過酸化
物、亜鉛華、マグネシア等の金属酸化物、キノンジオキ
シム等が挙げられる。加硫促進剤としては、メルカプト
ベンゾチアゾール(MBT)等のチアゾール類、N−シ
クロヘキシル−2−ベンゾチアゾールスルフェンアミド
(CBS)等のスルフェンアミド類、ジフェニルグアニ
ジン等のグアニジン類等が挙げられる。老化防止剤とし
ては、N−(1,3−ジメチルブチル)−N’−フェニ
ル−p−フェニレンジアミン(6PPD)、N,N’−
ジナフチル−p−フェニレンジアミン(DNPD)、N
−イソプロピル−N’−フェニル−p−フェニレンジア
ミン(IPPD)、スチレン化フェノール(SP)等が
挙げられる。上述の添加剤は、単独または2種以上の混
合物として用いることができる。
[0010] In addition to the above components, the composition of the present invention may contain additives which are usually compounded in rubber as long as the characteristics of the present invention are not impaired. Examples of such additives include a reinforcing agent, a filler, a plasticizer, a vulcanizing agent, a vulcanization accelerator, an antioxidant, and the like. Examples of the reinforcing agent or filler include carbon, silica, calcium carbonate, clay, talc, and phenol resin. As a plasticizer,
Examples include process oils, petroleum resins, synthetic plasticizers such as DOP (dioctyl phthalate) and dioctyl sebacate, vegetable oils, and liquid rubbers. As the vulcanizing agent, sulfur, tetramethylthiuram disulfide (TMTD),
Organic sulfur-containing compounds such as tetraethylthiuram disulfide (TETD) and dipentamethylenethiuram disulfide (DPTT); organic peroxides such as dicumyl peroxide; metal oxides such as zinc white and magnesia; and quinone dioximes. Examples of the vulcanization accelerator include thiazoles such as mercaptobenzothiazole (MBT), sulfenamides such as N-cyclohexyl-2-benzothiazolesulfenamide (CBS), and guanidines such as diphenylguanidine. Examples of anti-aging agents include N- (1,3-dimethylbutyl) -N'-phenyl-p-phenylenediamine (6PPD), N, N'-
Dinaphthyl-p-phenylenediamine (DNPD), N
-Isopropyl-N'-phenyl-p-phenylenediamine (IPPD), styrenated phenol (SP) and the like. The above-mentioned additives can be used alone or as a mixture of two or more.

【0011】本発明の組成物は、上記必須の成分を加
え、必要に応じてその他の添加剤を加えて、ニーダ、バ
ンバリーミキサ等の混練機を用いて混練し、成形し、加
硫することにより、得ることができる。
The composition of the present invention is prepared by adding the above essential components and, if necessary, other additives, kneading the mixture using a kneader such as a kneader or a Banbury mixer, molding and vulcanizing. Can be obtained.

【0012】本発明のゴム組成物を用いる高減衰ゴム支
承とは、一般にゴム組成物と鉄板等の硬質板とを交互に
積層した積層体からなり、橋梁の支承やビルの基礎免震
等に用いられる構造体である。この積層体に用いる支承
用ゴム組成物には、高い減衰性をもつゴム組成物が好適
である。本発明の組成物は、弾性率の温度依存性が低減
され、従来の高減衰ゴムと同等の減衰性の範囲で減衰性
能を適宜自由に設定できるので、上述の高減衰ゴム支承
用ゴム組成物として好適にもちいることができる。
A high-damping rubber bearing using the rubber composition of the present invention is generally composed of a laminate in which a rubber composition and a hard plate such as an iron plate are alternately laminated, and is used for a bridge bearing, a building base isolation system, and the like. The structure used. A rubber composition having a high damping property is preferable as the rubber composition for a bearing used in the laminate. The composition of the present invention has a reduced temperature dependency of the elastic modulus, and the damping performance can be freely set as appropriate within a damping range equivalent to that of the conventional high damping rubber. It can be suitably used.

【0013】[0013]

【実施例】以下に、実施例を示して本発明を具体的に説
明する。ゴム組成物の作成 (実施例1〜8、比較例1〜11)下記表1および2に
示した配合内容でゴム組成物を調整した。配合量の単位
は〔重量部〕である。なお、全実施例、比較例に共通し
て、NR100重量部に対し、カーボンを70重量部、
亜鉛華を5重量部、ステアリン酸を1重量部、加硫促進
剤としてCBSを1重量部、硫黄を1.5重量部配合し
た。ゴム成分と、加硫促進剤CBSと硫黄を除く配合剤
とを、神戸製鋼(株)製B型バンバリーミキサー(1.
8L)を用いて5分間混合した後、この混合物に加硫促
進剤と硫黄を8インチの試験用練りロール機で4分間混
練してゴム組成物を得た。実施例1〜4および比較例1
〜9の結果を表1に、実施例5〜8および比較例10〜
11の結果を表2に示した。物性の評価 実施例および比較例で得られたゴム組成物を、JIS
K6301に規定された加硫用プレス機を用いて148
℃で45分間プレス加硫し、加硫物の物性を評価した。
なお、加硫物の物性の測定方法は下記の通りである。 (1)引っ張り試験による特性値 オートグラフ引張り試験機で、幅10mm、厚さ2mm
の短冊状のサンプルをクロスヘッドスピード500mm
/minの条件で、5回、150%伸張させた際の5回
目の特性値を評価した。 a)モジュラス 150%伸張時の応力(M150 〔MPa〕)を測定し
た。 b)温度依存性(−20/23) 測定温度−20℃と23℃で、a)のモジュラスの測定
を行ない、得られた測定値の比(−20℃でのモジュラ
ス/23℃でのモジュラス)を求めた。この値が1に近
いほど、温度依存性が低い。 c)ヒステリシスロス(h−ロス) ゴム組成物にかける応力増加時の歪みと応力減少時の歪
みとの履歴から、図1に示す応力−歪み曲線図のABC
DAとABCEAに相当する面積の比=(ABCDA/
ABCEA)×100を算出し、エネルギーの減衰性を
評価した。 (2)一般物性 JIS K6301の方法に準拠して、200%引張り
応力( M200 )、引張り強さ(TB )、伸び(EB )、
硬さ(HS )を測定した。結果を表1および2に示す。
The present invention will be specifically described below with reference to examples. Preparation of Rubber Composition (Examples 1 to 8, Comparative Examples 1 to 11) Rubber compositions were prepared according to the contents shown in Tables 1 and 2 below. The unit of the compounding amount is [parts by weight]. In addition, common to all Examples and Comparative Examples, 70 parts by weight of carbon, 100 parts by weight of NR,
5 parts by weight of zinc white, 1 part by weight of stearic acid, 1 part by weight of CBS as a vulcanization accelerator, and 1.5 parts by weight of sulfur were blended. A rubber component and a compounding agent excluding the vulcanization accelerator CBS and sulfur were mixed with a B-type Banbury mixer manufactured by Kobe Steel Ltd. (1.
8L) for 5 minutes, and then the mixture was kneaded with a vulcanization accelerator and sulfur for 4 minutes with an 8-inch test kneading roll machine to obtain a rubber composition. Examples 1 to 4 and Comparative Example 1
Table 9 shows the results of Examples 5 to 8 and Comparative Examples 10
The results of No. 11 are shown in Table 2. Evaluation of Physical Properties The rubber compositions obtained in Examples and Comparative Examples were subjected to JIS.
148 using a vulcanizing press specified in K6301.
Press vulcanization was performed at 45 ° C. for 45 minutes, and the physical properties of the vulcanized product were evaluated.
In addition, the measuring method of the physical property of a vulcanizate is as follows. (1) Characteristic value by tensile test With an autograph tensile tester, width 10 mm, thickness 2 mm
Sample with a crosshead speed of 500mm
The fifth characteristic value when elongating 150% five times under the condition of / min was evaluated. a) Modulus The stress at the time of 150% elongation (M 150 [MPa]) was measured. b) Temperature dependence (−20/23) At the measurement temperatures of −20 ° C. and 23 ° C., the modulus of a) was measured, and the ratio of the obtained measured values (modulus at −20 ° C./modulus at 23 ° C.) ). The closer this value is to 1, the lower the temperature dependence. c) Hysteresis loss (h-loss) Based on the history of the strain at the time of increasing the stress applied to the rubber composition and the strain at the time of decreasing the stress, the ABC of the stress-strain curve shown in FIG.
Ratio of area corresponding to DA and ABCEA = (ABCDA /
ABCEA) × 100 was calculated to evaluate the energy attenuation. (2) General physical properties According to the method of JIS K6301, 200% tensile stress (M 200 ), tensile strength (T B ), elongation (E B ),
The hardness (H S ) was measured. The results are shown in Tables 1 and 2.

【0014】なお、実施例および比較例で使用した化合
物は、下記のとおりである。ジエン系ゴム NR:TSR20熱可塑性エラストマー SBS(30/70):シェル社製、TR1101S (スチレ
ン含量30重量%) SBS(40/60):シェル社製、KX155P(スチレン
含量40重量%) SIS(30/70):シェル社製、D1125X(スチレン
含量30重量%) SEBS(29/71):シェル社製、G1650 (スチレ
ン含量29重量%)樹脂 :新日鉄化学社製、クマロンインデン樹脂エスクロ
ンV-120 カーボン:昭和キャボット社製、ISAFショウブラックN2
20 アロマオイル:出光興産社製、ダイアナプロセスAH-20 亜鉛華:正同化学社製、亜鉛華3号 ステアリン酸:花王社製、LUNAC YA 加硫促進剤CBS:大内新興社製、ノクセラーCZ 硫黄:軽井沢精練所製、粉末イオウ
The compounds used in the examples and comparative examples are as follows. Diene rubber NR: TSR20 thermoplastic elastomer SBS (30/70): manufactured by Shell, TR1101S (styrene content 30% by weight) SBS (40/60): manufactured by Shell, KX155P (styrene content 40% by weight) SIS (30) / 70): Shell, D1125X (styrene content 30% by weight) SEBS (29/71): Shell, G1650 (styrene content 29% by weight) Resin : Nippon Steel Chemical Co., Ltd., Coumarone indene resin Esklon V-120 Carbon: Showa Cabot, ISAF Show Black N2
20 Aroma oil: Idemitsu Kosan Co., Ltd., Diana Process AH-20 Zinc flower: Shodo Chemical Co., Ltd., Zinc flower No. 3 Stearic acid: Kao Co., Ltd., LUNAC YA Vulcanization accelerator CBS: Ouchi Shinko Co., Noxeller CZ Sulfur: Karuizawa refinery, powdered sulfur

【0015】[0015]

【表1】 [Table 1]

【0016】[0016]

【表2】 [Table 2]

【0017】[0017]

【発明の効果】本発明の高減衰ゴム支承用ゴム組成物
は、特定の熱可塑性エラストマーを含有することにより
弾性率の温度依存性が小さい。そのため、寒冷地であっ
ても、ゴム弾性が高くなることない。さらに樹脂を併用
しその種類を選ぶことによりヒステリシスロスの値を自
由に設定することができる。このような特性を有するゴ
ム組成物は、気温の差に係わらず、各種の除振、防振、
免震装置等のゴム材料として利用価値が高い。
The rubber composition for a high-damping rubber bearing of the present invention has a small temperature dependency of the elastic modulus by containing a specific thermoplastic elastomer. Therefore, rubber elasticity does not increase even in a cold region. Further, the value of the hysteresis loss can be freely set by selecting the type of the resin together with the resin. Rubber compositions having such properties, regardless of the temperature difference, various vibration isolation, vibration isolation,
Highly useful as rubber material for seismic isolation devices.

【図面の簡単な説明】[Brief description of the drawings]

【図1】応力−歪みの相関を示すグラフ(ヒステリシス
ループ)である。
FIG. 1 is a graph (hysteresis loop) showing a stress-strain correlation.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】ジエン系ゴム100重量部に対して、スチ
レンブロックを有する熱可塑性エラストマー共重合体5
超〜50重量部を含有する高減衰ゴム支承用ゴム組成
物。
1. A thermoplastic elastomer copolymer 5 having a styrene block with respect to 100 parts by weight of a diene rubber.
A rubber composition for a high-damping rubber bearing containing from super to 50 parts by weight.
【請求項2】前記ジエン系ゴム100重量部に対して、
さらに樹脂5〜60重量部を含有する請求項1に記載の
高減衰ゴム支承用ゴム組成物。
2. With respect to 100 parts by weight of the diene rubber,
The rubber composition for a high-damping rubber bearing according to claim 1, further comprising 5 to 60 parts by weight of a resin.
JP2155697A 1997-02-04 1997-02-04 Rubber composition for high damping rubber bearing Expired - Fee Related JP3753493B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2155697A JP3753493B2 (en) 1997-02-04 1997-02-04 Rubber composition for high damping rubber bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2155697A JP3753493B2 (en) 1997-02-04 1997-02-04 Rubber composition for high damping rubber bearing

Publications (2)

Publication Number Publication Date
JPH10219029A true JPH10219029A (en) 1998-08-18
JP3753493B2 JP3753493B2 (en) 2006-03-08

Family

ID=12058290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2155697A Expired - Fee Related JP3753493B2 (en) 1997-02-04 1997-02-04 Rubber composition for high damping rubber bearing

Country Status (1)

Country Link
JP (1) JP3753493B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003261717A (en) * 2002-03-12 2003-09-19 Tokai Rubber Ind Ltd Highly damping elastomer composition
JP2006265935A (en) * 2005-03-24 2006-10-05 Yokohama Rubber Co Ltd:The Bridge-falling preventive device
JP2006265936A (en) * 2005-03-24 2006-10-05 Yokohama Rubber Co Ltd:The Elastic bearing for bridge
JP2006274752A (en) * 2005-03-30 2006-10-12 Yokohama Rubber Co Ltd:The Elastic support for bridge
JP2006274753A (en) * 2005-03-30 2006-10-12 Yokohama Rubber Co Ltd:The Elastic bearing for bridge
JP4595171B2 (en) * 2000-07-04 2010-12-08 横浜ゴム株式会社 Rubber composition for high damping bearing
JP2018035253A (en) * 2016-08-31 2018-03-08 住友理工株式会社 Vibration-proof rubber composition and vibration-proof rubber

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4595171B2 (en) * 2000-07-04 2010-12-08 横浜ゴム株式会社 Rubber composition for high damping bearing
JP2003261717A (en) * 2002-03-12 2003-09-19 Tokai Rubber Ind Ltd Highly damping elastomer composition
JP2006265935A (en) * 2005-03-24 2006-10-05 Yokohama Rubber Co Ltd:The Bridge-falling preventive device
JP2006265936A (en) * 2005-03-24 2006-10-05 Yokohama Rubber Co Ltd:The Elastic bearing for bridge
JP4556129B2 (en) * 2005-03-24 2010-10-06 横浜ゴム株式会社 Fall bridge prevention device
JP4561424B2 (en) * 2005-03-24 2010-10-13 横浜ゴム株式会社 Elastic bearing for bridge
JP2006274752A (en) * 2005-03-30 2006-10-12 Yokohama Rubber Co Ltd:The Elastic support for bridge
JP2006274753A (en) * 2005-03-30 2006-10-12 Yokohama Rubber Co Ltd:The Elastic bearing for bridge
JP4552229B2 (en) * 2005-03-30 2010-09-29 横浜ゴム株式会社 Elastic bearing for bridge
JP4561441B2 (en) * 2005-03-30 2010-10-13 横浜ゴム株式会社 Elastic bearing for bridge
JP2018035253A (en) * 2016-08-31 2018-03-08 住友理工株式会社 Vibration-proof rubber composition and vibration-proof rubber
WO2018043198A1 (en) * 2016-08-31 2018-03-08 住友理工株式会社 Vibration damping rubber composition and vibration damping rubber

Also Published As

Publication number Publication date
JP3753493B2 (en) 2006-03-08

Similar Documents

Publication Publication Date Title
JP6261131B2 (en) High damping composition, seismic damper and seismic isolation bearing
KR101805206B1 (en) High damping composition
KR20170142861A (en) Highly damping rubber composition and viscoelastic damper
JP5625227B2 (en) Rubber composition for liquid filled anti-vibration rubber
JP2017082171A (en) High attenuation rubber composition and viscoelastic damper
JPH10219029A (en) Rubber composition for high-attenuation rubber support
JP5313224B2 (en) Seismic isolation / damping device
JP4030412B2 (en) Rubber composition for highly attenuated laminate and rubber laminate using the rubber composition
JP2015160903A (en) High attenuation composition, earthquake-proof damper, and aseismic base isolation bearing
WO1998032794A1 (en) Rubber composition for seismic isolation laminates
JPH10219033A (en) Rubber composition for high-attenuation support
JP5043310B2 (en) Low repulsion rubber composition and seismic isolation structure using the same
JP2017210532A (en) High attenuation rubber composition and viscoelastic damper
JP2008184581A (en) Vibration isolating rubber composition
JP3645469B2 (en) Rubber composition for laminates with improved fracture characteristics
JPH1192597A (en) Rubber composition for highly damping laminate
JPH11263879A (en) Rubber composition for high-damping laminate
JP2004027080A (en) Rubber composition for anti-seismic laminate
JP4331003B2 (en) Rubber composition for high damping bearing and high damping bearing
JP7488640B2 (en) Rubber composition for seismic isolation structure and seismic isolation structure
JP6259267B2 (en) Rubber composition for tire and fracture test method
JP5038608B2 (en) High damping rubber composition
JP2010189495A (en) Rubber composition for fender, and fender using the same
JP2002013121A (en) Fender and its manufacturing method
JP2023145863A (en) Vibration isolation rubber composition and vibration isolation rubber

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040109

A977 Report on retrieval

Effective date: 20050829

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20050906

A521 Written amendment

Effective date: 20051104

Free format text: JAPANESE INTERMEDIATE CODE: A523

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Effective date: 20051129

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20051213

R150 Certificate of patent (=grant) or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081222

Year of fee payment: 3

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091222

Year of fee payment: 4

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 5

Free format text: PAYMENT UNTIL: 20101222

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 5

Free format text: PAYMENT UNTIL: 20101222

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 6

Free format text: PAYMENT UNTIL: 20111222

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111222

Year of fee payment: 6

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111222

Year of fee payment: 6

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121222

Year of fee payment: 7

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 7

Free format text: PAYMENT UNTIL: 20121222

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 7

Free format text: PAYMENT UNTIL: 20121222

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 8

Free format text: PAYMENT UNTIL: 20131222

LAPS Cancellation because of no payment of annual fees