JPH09295371A - Laminated rubber support - Google Patents
Laminated rubber supportInfo
- Publication number
- JPH09295371A JPH09295371A JP10905596A JP10905596A JPH09295371A JP H09295371 A JPH09295371 A JP H09295371A JP 10905596 A JP10905596 A JP 10905596A JP 10905596 A JP10905596 A JP 10905596A JP H09295371 A JPH09295371 A JP H09295371A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- laminated
- laminated rubber
- chloroprene
- carbon black
- 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.)
- Withdrawn
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 54
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 20
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000006229 carbon black Substances 0.000 claims abstract description 8
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 3
- 239000011630 iodine Substances 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 10
- 238000010008 shearing Methods 0.000 abstract 4
- -1 xanthogenic acid modified chloroprene Chemical class 0.000 abstract 3
- 241000872198 Serjania polyphylla Species 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 244000043261 Hevea brasiliensis Species 0.000 description 4
- 229920003052 natural elastomer Polymers 0.000 description 4
- 229920001194 natural rubber Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、構造物の免震など
に利用される積層ゴム支承体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated rubber bearing used for seismic isolation of structures.
【０００２】[0002]
【従来の技術】建築物などの構造物を地震から保護する
基礎材として、複数枚の鋼板を薄いゴム板を介して積層
した積層ゴム支承体が知られており、ゴム板には、一般
に、天然ゴムが使用されている。これは、天然ゴムが他
のゴム材に比べて、剪断弾性率の歪み依存性が小さいた
めであり、歪み依存性の大きいゴム材を使用した場合に
は、免震構造物の固有振動数や許容変位などの設計が困
難になるからである。2. Description of the Related Art As a basic material for protecting structures such as buildings from an earthquake, a laminated rubber bearing is known in which a plurality of steel plates are laminated through a thin rubber plate. Natural rubber is used. This is because natural rubber has a smaller strain dependence of shear modulus than other rubber materials. When a rubber material having a large strain dependence is used, the natural frequency and This is because it is difficult to design the allowable displacement.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、天然ゴ
ムは、このように優れた特長を有する反面、耐久性や耐
候性などに乏しいという難点があり、積層体の外周部に
他のゴム材を巻き付けるなどの対策が必要であった。そ
こで、このような対策を必要としない、すなわち、剪断
弾性率の歪み依存性が小さく、しかも、耐久性や耐候性
などにも優れたゴム材を用いた積層ゴム支承体の開発が
望まれている。However, although natural rubber has such excellent characteristics, it has a drawback that it is poor in durability and weather resistance. Therefore, another rubber material is wound around the outer peripheral portion of the laminate. It was necessary to take measures such as Therefore, it is desired to develop a laminated rubber bearing using a rubber material that does not require such measures, that is, has a low strain dependency of shear modulus and is excellent in durability and weather resistance. There is.
【０００４】本発明はこのような要望に応えるべくなさ
れたもので、剪断弾性率の歪み依存性が小さく、かつ、
耐久性や耐候性などにも優れたゴム材を用いた高信頼性
の積層ゴム支承体を提供することを目的とする。The present invention has been made in order to meet such a demand, and has a low shear elastic modulus strain dependence, and
It is an object of the present invention to provide a highly reliable laminated rubber bearing using a rubber material having excellent durability and weather resistance.
【０００５】[0005]
【課題を解決するための手段】本発明者らはこのような
積層ゴム支承体を得るべく鋭意検討を重ねた結果、キサ
ントゲン酸変性クロロプレンゴムをベースゴムとしたゴ
ム材が上記特性を具備するものであることを見出し、本
発明を完成するに至った。Means for Solving the Problems As a result of intensive investigations by the present inventors to obtain such a laminated rubber bearing, a rubber material using a xanthogenic acid-modified chloroprene rubber as a base rubber has the above characteristics. Therefore, the present invention has been completed.
【０００６】すなわち、本発明の積層ゴム支承体は、複
数の剛性板とゴム板とを交互に積層してなる積層ゴム支
承体において、前記ゴム板は、キサントゲン酸変性クロ
ロプレンゴムをベースゴムとするクロロプレン系ゴム組
成物からなることを特徴とするものである。That is, the laminated rubber bearing of the present invention is a laminated rubber bearing formed by alternately laminating a plurality of rigid plates and rubber plates, wherein the rubber plate uses xanthogenic acid-modified chloroprene rubber as a base rubber. It is characterized by comprising a chloroprene rubber composition.
【０００７】本発明に用いられるキサントゲン酸変性ク
ロロプレンゴムは、ムーニー粘度 ML1+4(100℃） 40 〜
90の常温で固体のものである。市販品としては、バイエ
ル社製のバイプレン116 、バイプレン216 など、昭和電
工デュポン社製のネオプレンTW、ネオプレンTRT など
（以上、いずれも商品名）が例示される。The xanthogenic acid-modified chloroprene rubber used in the present invention has a Mooney viscosity of ML1 + 4 (100 ° C.) of 40-
It is solid at room temperature of 90. Examples of commercially available products include Bayprene 116 and Bayprene 216 manufactured by Bayer, and Neoprene TW and Neoprene TRT manufactured by Showa Denko DuPont (all of which are trade names).
【０００８】本発明においては、このようなキサントゲ
ン酸変性クロロプレンゴムに、カーボンブラック、なか
でも平均粒子径80nm以上、比表面積 25m2 /g以下で、か
つ、ヨウ素吸着量30mg/g以下のカーボンブラックを配合
することが望ましく、その配合量としては、ゴム成分 1
00重量部に対して、 10 〜100 重量部の範囲が適当であ
る。カーボンブラックの配合量が、この範囲を外れる
と、引張強さ、伸びなどにおいて、積層ゴム支承体に要
求される性能が十分に得られなくなるおそれがある。In the present invention, such xanthogenic acid-modified chloroprene rubber is added to carbon black, especially carbon black having an average particle size of 80 nm or more, a specific surface area of 25 m 2 / g or less, and an iodine adsorption amount of 30 mg / g or less. It is desirable to compound the rubber component as the compounding amount 1
A range of 10 to 100 parts by weight is suitable for 00 parts by weight. If the compounding amount of carbon black is out of this range, the performance required for the laminated rubber bearing may not be sufficiently obtained in terms of tensile strength, elongation and the like.
【０００９】なお、本発明のクロロプレン系ゴム組成物
には、上記各成分の他、この種のゴム組成物に一般に使
用されている軟化剤、老化防止剤、加工助剤、加硫剤、
加硫促進剤その他の添加剤を必要に応じて配合してもよ
い。The chloroprene rubber composition of the present invention contains, in addition to the above-mentioned components, a softening agent, an antioxidant, a processing aid, a vulcanizing agent, which are generally used in this type of rubber composition.
You may mix | blend a vulcanization accelerator and other additives as needed.
【００１０】このようなクロロプレン系ゴム組成物は、
一般のクロロプレンゴム組成物の特長である良好な耐久
性や耐候性などを具備するだけでなく、剪断弾性率の歪
み依存性の小さいものとなる。したがって、これを用い
た本発明の積層ゴム支承体は、耐久性や耐候性に優れ、
かつ、剪断歪みが増加しても剪断弾性率が大きく変化す
ることのない信頼性の高いものとなる。Such a chloroprene rubber composition is
Not only does it have good durability and weather resistance, which are the characteristics of general chloroprene rubber compositions, but also the strain dependence of the shear elastic modulus is small. Therefore, the laminated rubber bearing of the present invention using this is excellent in durability and weather resistance,
In addition, even if the shear strain increases, the shear elastic modulus does not change significantly and the reliability is high.
【００１１】[0011]
【発明の実施の形態】以下、本発明を実施例により具体
的に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described specifically with reference to examples.
【００１２】実施例 キサントゲン酸変性クロロプレンゴム（昭和電工デュポ
ン社製 商品名ネオプレンTW）、カーボンブラック（旭
カーボン社製 商品名アサヒサーマル）、プロセスオイ
ル（日本石油社製 商品名コーモレックス 2号）、ステ
アリン酸、老化防止剤（大内新興化学工業社製 商品名
ノクラック6C）、酸化マグネシウム（神島化学工業社製
商品名スターマグＭ）、亜鉛華、加硫促進剤（川口化
学社製商品名 NA-22R ）を表１に示す配合で均一に混練
してコンパウンドを得た。EXAMPLE Xanthogenic acid-modified chloroprene rubber (trade name Neoprene TW manufactured by Showa Denko DuPont), carbon black (Asahi Thermal trade name manufactured by Asahi Carbon Co., Ltd.), process oil (commercial name Comorex No. 2 manufactured by Nippon Oil Co., Ltd.), Stearic acid, anti-aging agent (Ouchi Shinko Chemical Co., Ltd. trade name Nocrac 6C), magnesium oxide (Kamishima Chemical Co., Ltd. trade name StarMag M), zinc white, vulcanization accelerator (Kawaguchi Chemical Co., Ltd. trade name NA- 22R) was uniformly kneaded in the composition shown in Table 1 to obtain a compound.
【００１３】次いで、得られたコンパウンドを、温度 1
50℃、時間 30 分の条件で加硫成型し、所定の試験試料
を作製した後、これらの各試料について JIS K 6301 に
基づく物性試験を行った。結果を組成とともに表１に示
す。Then, the obtained compound is treated at a temperature of 1
After vulcanization molding under conditions of 50 ° C and time of 30 minutes to prepare predetermined test samples, physical properties tests based on JIS K 6301 were conducted for each of these samples. The results are shown in Table 1 together with the composition.
【００１４】また、上記コンパウンドを用いて、実際
に、鋼板とゴム板とを交互に重ねて一体に加硫接着した
構造の積層ゴム支承体（直径 100mm、中間鋼板厚 1.2m
m、ゴム板厚 1.4mm、ゴム層数 14 ）を作製し、剪断歪
みに対する剪断弾性率の変化を調べた。これらの結果
を、表１および図１のグラフに示す。なお、剪断弾性率
（G)は、積層ゴム支承体に対し、面圧 0kgf/cm2 、周波
数 0.1Hzで剪断方向に加振してバネ定数（k)を測定し、
次式より算出したものである。In addition, using the above compound, a laminated rubber bearing having a structure in which steel plates and rubber plates are alternately laminated and integrally vulcanized and bonded (diameter 100 mm, intermediate steel plate thickness 1.2 m
m, rubber plate thickness 1.4 mm, and number of rubber layers 14) were prepared, and changes in shear modulus with shear strain were investigated. The results are shown in Table 1 and the graph of FIG. The shear modulus (G) was measured by measuring the spring constant (k) of the laminated rubber bearing by applying a surface pressure of 0 kgf / cm 2 and a frequency of 0.1 Hz in the shear direction.
It is calculated from the following formula.
【００１５】Ｇ＝ｎｔ・ｋ／Ａ （ｎ：ゴム層数、ｔ： 1層あたりのゴム厚、Ａ：積層体
断面積） さらに、本発明との比較のために、表１に示すような配
合で、各成分を混練してコンパウンドを得、これらのコ
ンパウンドについて、上記実施例と同様の物性試験を行
うとともに、得られた各コンパウンドを用いて実施例と
同一構造の積層ゴム支承体を作製し、剪断歪みに対する
剪断弾性率の変化を調べた。すなわち、比較例１および
比較例２は、ベースゴムとして天然ゴム（ＳＭＲ CV-6
0）を用いた例、比較例３は、ベースゴムとしてメルカ
プタン変性クロロプレンゴム（昭和電工デュポン社製
商品名ネオプレン WRT）を使用した例である。結果を表
１および図１に併せ示す。G = nt · k / A (n: number of rubber layers, t: rubber thickness per layer, A: cross-sectional area of laminate) Further, as shown in Table 1 for comparison with the present invention. In the compounding, each component was kneaded to obtain a compound, the same physical property test as those of the above-mentioned examples was performed on these compounds, and a laminated rubber bearing having the same structure as that of the example was prepared by using each of the obtained compounds. Then, the change in the shear elastic modulus with respect to the shear strain was examined. That is, in Comparative Example 1 and Comparative Example 2, the natural rubber (SMR CV-6
0) and Comparative Example 3 are mercaptan-modified chloroprene rubber (manufactured by Showa Denko DuPont) as a base rubber.
This is an example using the product name Neoprene WRT). The results are also shown in Table 1 and FIG.
【００１６】[0016]
【表１】 上記表およびグラフからも明らかなように、本発明に係
る積層ゴム支承体は、比較例のものに比べ、高歪み時に
おける剪断弾性率の変化が小さく、かつ、熱老化特性、
永久圧縮歪み特性、耐オゾン性にも優れている。[Table 1] As is clear from the above tables and graphs, the laminated rubber bearing according to the present invention has a smaller change in shear modulus at high strain than that of the comparative example, and has heat aging characteristics,
It also has excellent permanent compression set characteristics and ozone resistance.
【００１７】[0017]
【発明の効果】以上の説明からも明らかなように、本発
明の積層ゴム支承体によれぱ、キサントゲン酸変性クロ
ロプレンゴムをベースゴムとするゴム材によりゴム板を
構成するようにしたので、積層体の外周部に他のゴム材
を巻き付けるなどの対策を施すことなく、剪断弾性率の
歪み依存性が小さく、かつ、耐久性や耐候性などにも優
れたものとすることができる。As is apparent from the above description, since the laminated rubber bearing of the present invention forms the rubber plate with the rubber material having the xanthogenic acid-modified chloroprene rubber as the base rubber, Without taking measures such as wrapping another rubber material around the outer peripheral portion of the body, it is possible to make the shear modulus of elasticity less dependent on strain and to have excellent durability and weather resistance.
【図１】本発明の実施例および比較例について測定した
積層ゴム支承体の剪断歪みに対する剪断弾性率の変化を
示すグラフ。FIG. 1 is a graph showing changes in shear elastic modulus with respect to shear strain of laminated rubber bearings measured in Examples and Comparative Examples of the present invention.
Claims (3)
てなる積層ゴム支承体において、 前記ゴム板は、キサントゲン酸変性クロロプレンゴムを
ベースゴムとするクロロプレン系ゴム組成物からなるこ
とを特徴とする積層ゴム支承体。1. A laminated rubber support comprising a plurality of rigid plates and rubber plates alternately laminated, wherein the rubber plates are composed of a chloroprene-based rubber composition containing a xanthogenic acid-modified chloroprene rubber as a base rubber. Characteristic laminated rubber bearing.
分 100重量部あたり、 10 〜100 重量部のカーボンブラ
ックが配合されてなることを特徴とする請求項１記載の
積層ゴム支承体。2. The laminated rubber bearing according to claim 1, wherein the chloroprene rubber composition is blended with 10 to 100 parts by weight of carbon black per 100 parts by weight of the rubber component.
上、比表面積 25m2/g以下で、かつ、ヨウ素吸着量30mg/
g以下のものであることを特徴とする請求項２記載の積
層ゴム支承体。3. Carbon black has an average particle size of 80 nm or more, a specific surface area of 25 m 2 / g or less, and an iodine adsorption amount of 30 mg /
3. The laminated rubber bearing according to claim 2, wherein the laminated rubber bearing is g or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10905596A JPH09295371A (en) | 1996-04-30 | 1996-04-30 | Laminated rubber support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10905596A JPH09295371A (en) | 1996-04-30 | 1996-04-30 | Laminated rubber support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09295371A true JPH09295371A (en) | 1997-11-18 |
Family
ID=14500466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10905596A Withdrawn JPH09295371A (en) | 1996-04-30 | 1996-04-30 | Laminated rubber support |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09295371A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009035109A1 (en) * | 2007-09-14 | 2009-03-19 | Denki Kagaku Kogyo Kabushiki Kaisha | Chloroprene rubber composition and use thereof |
| WO2012124442A1 (en) * | 2011-03-11 | 2012-09-20 | 電気化学工業株式会社 | Chloroprene rubber composition and vulcanized rubber thereof, and rubber molded product, vibration-damping rubber member, engine mount, and hose using vulcanized rubber |
| JP2016028208A (en) * | 2014-07-10 | 2016-02-25 | 昭和電線デバイステクノロジー株式会社 | Laminated rubber bearing body |
-
1996
- 1996-04-30 JP JP10905596A patent/JPH09295371A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009035109A1 (en) * | 2007-09-14 | 2009-03-19 | Denki Kagaku Kogyo Kabushiki Kaisha | Chloroprene rubber composition and use thereof |
| US8530547B2 (en) | 2007-09-14 | 2013-09-10 | Denki Kagaku Kogyo Kabushiki Kaisha | Chloroprene rubber composition and its application |
| JP5525817B2 (en) * | 2007-09-14 | 2014-06-18 | 電気化学工業株式会社 | Chloroprene rubber composition and use thereof |
| WO2012124442A1 (en) * | 2011-03-11 | 2012-09-20 | 電気化学工業株式会社 | Chloroprene rubber composition and vulcanized rubber thereof, and rubber molded product, vibration-damping rubber member, engine mount, and hose using vulcanized rubber |
| US9574062B2 (en) | 2011-03-11 | 2017-02-21 | Denka Company Limited | Chloroprene rubber composition and vulcanized rubber thereof, and rubber molded product, vibration-damping rubber member, engine mount, and hose using vulcanized rubber |
| JP2016028208A (en) * | 2014-07-10 | 2016-02-25 | 昭和電線デバイステクノロジー株式会社 | Laminated rubber bearing body |
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| Date | Code | Title | Description |
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| A300 | Withdrawal of application because of no request for examination |
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