JP3430336B2 - Waterproof material - Google Patents
Waterproof materialInfo
- Publication number
- JP3430336B2 JP3430336B2 JP2000310961A JP2000310961A JP3430336B2 JP 3430336 B2 JP3430336 B2 JP 3430336B2 JP 2000310961 A JP2000310961 A JP 2000310961A JP 2000310961 A JP2000310961 A JP 2000310961A JP 3430336 B2 JP3430336 B2 JP 3430336B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- parts
- weight
- water blocking
- rubber
- 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 - Fee Related
Links
- 239000000463 material Substances 0.000 title claims description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 230000000903 blocking effect Effects 0.000 claims description 25
- 229920001971 elastomer Polymers 0.000 claims description 16
- 239000012779 reinforcing material Substances 0.000 claims description 16
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 14
- 239000005662 Paraffin oil Substances 0.000 claims description 11
- 239000010734 process oil Substances 0.000 claims description 8
- 239000005060 rubber Substances 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229920002742 polystyrene-block-poly(ethylene/propylene) -block-polystyrene Polymers 0.000 claims description 6
- 229920002743 polystyrene-poly(ethylene-ethylene/propylene) block-polystyrene Polymers 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 4
- 239000010692 aromatic oil Substances 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 230000003796 beauty Effects 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 description 14
- 238000007906 compression Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 13
- 229920005549 butyl rubber Polymers 0.000 description 12
- 239000011162 core material Substances 0.000 description 11
- 239000004793 Polystyrene Substances 0.000 description 10
- 229920002943 EPDM rubber Polymers 0.000 description 9
- 239000006260 foam Substances 0.000 description 9
- 229920001195 polyisoprene Polymers 0.000 description 9
- 229920002725 thermoplastic elastomer Polymers 0.000 description 9
- 239000000806 elastomer Substances 0.000 description 8
- 229920002223 polystyrene Polymers 0.000 description 8
- 238000000465 moulding Methods 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 238000004040 coloring Methods 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 239000012778 molding material Substances 0.000 description 4
- 239000004636 vulcanized rubber Substances 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 4
- 229920006311 Urethane elastomer Polymers 0.000 description 3
- 230000003712 anti-aging effect Effects 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 229920001400 block copolymer Polymers 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 229920001084 poly(chloroprene) Polymers 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001098 polystyrene-block-poly(ethylene/propylene) Polymers 0.000 description 2
- 229920003187 saturated thermoplastic elastomer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 241000272194 Ciconiiformes Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000004620 low density foam Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Sewage (AREA)
- Building Environments (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は各種コンクリート構造物
等の接合部に使用できる止水性・施工性に優れた止水材
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof material which can be used for joints of various concrete structures and the like and has excellent waterproofness and workability.
【０００２】[0002]
【従来の技術】土木構造物及び建築構造物の接合部止水
材には各種のものがあり、従来よりブチルゴム、シリコ
ーンゴム、クロロプレンゴム、スチレンブタジエンゴ
ム、ウレタンゴム、ＥＰＤＭ（エチレン−プロピレン−
ジエン ターポリマー）ゴム等を素材とした成形品及び
発泡体等が用いられている。土木用途の止水成形材はフ
リーム、ボックスカルバート等のコンクリート二次製品
同士の継目止水材、パッキン材として多く使用されてい
る。建築用途の止水成形材は水道、衛生機器の管接合部
等の止水材、パッキンとして使用される。かかる止水材
のゴム材料としては、従来より、未加硫ゴム、加硫ゴ
ム、熱可塑性エラストマー組成物又はその発泡体が多く
提案されている。2. Description of the Related Art There are various types of waterproofing materials for joints of civil engineering structures and building structures. Conventionally, butyl rubber, silicone rubber, chloroprene rubber, styrene butadiene rubber, urethane rubber, EPDM (ethylene-propylene-
Diene terpolymer) Molded articles and foams made of rubber are used. Water-stop forming materials for civil engineering are often used as joint water-stopping materials and packing materials for secondary concrete products such as freems and box culverts. Water-stop molding materials for construction are used as water-stop materials for water pipes, pipe joints of sanitary equipment, and packing. As a rubber material for such a water blocking material, many unvulcanized rubbers, vulcanized rubbers, thermoplastic elastomer compositions or foams thereof have been conventionally proposed.
【０００３】従来の止水材は粘着性シール材としてブチ
ルゴムを使用したものや、クロロプレンゴム、スチレン
ブタジエンゴム、ウレタンゴム、ＥＰＤＭゴム等を素材
とした成形品及び発泡体等が用いられているが、これら
の止水成形材は長期耐水性に劣り、コンクリート構造物
やパイプ関係の接合止水材として満足するものではな
い。また、ブチルゴムを混合成型した止水材は加硫がな
されていないために、引張強度、剪断強度などの強度特
性の信頼性が劣るとされている。これに対して加硫系ゴ
ム及びＳＢＲ系熱可塑性エラストマーを基材としたもの
は、強度を維持させて低圧縮性能を持たせるのは難し
く、その結果低密度発泡成型することにより低圧縮性能
をもたせている。しかし、発泡系成形止水材は長期的に
は圧縮永久ひずみが大きく、復元性が劣り、その結果、
漏水の原因となっていた。Conventional waterproofing materials include those using butyl rubber as an adhesive sealing material, molded products and foams made from chloroprene rubber, styrene butadiene rubber, urethane rubber, EPDM rubber and the like. However, these water blocking moldings are inferior in long-term water resistance and are not satisfactory as joint water blocking materials for concrete structures and pipes. Further, since the water blocking material obtained by mixing and molding butyl rubber is not vulcanized, it is said that reliability of strength characteristics such as tensile strength and shear strength is poor. On the other hand, it is difficult to maintain strength and to provide low compression performance with the base material of vulcanized rubber and SBR thermoplastic elastomer, and as a result, low compression performance is obtained by low density foam molding. I am holding it. However, in the long term, the foamed water blocking material has a large compression set and inferior restorability, and as a result,
It was the cause of water leakage.
【０００４】ボックスカルバート、フリュームの接合
部、管の接合部等の止水材は、止水材を構成する組成物
の粘着力及び圧縮による反発弾性力で止水性をもたせて
いるが、ブチルゴム等の粘着性止水材は凝集力が小さい
ため水圧により押し出されないようにする配慮が必要で
ある。また、ブチル系止水材は一度セットすると再セッ
トが困難で、温度による圧縮性も変化しやすく、粘着物
はべたつきが有るため取扱い性も悪い。一方、発泡系成
形止水材は圧縮性に優れて取り扱いもブチル系のものよ
りも良いが、長期にわたり圧縮され続くと次第に反発性
を失う。その結果耐水圧性が低下し、接合部からの漏水
を引き起こす問題が起こっている。Water-stopping materials such as box culverts, flume joints, and pipe joints have water-stopping properties due to the adhesive force of the composition of the water-stopper and the repulsive elastic force due to compression. Butyl rubber, etc. Since the tacky water-stopping material of No. 2 has a small cohesive force, it is necessary to consider that it will not be pushed out by water pressure. In addition, the butyl-based water-stopping material is difficult to reset once it is set, its compressibility easily changes depending on the temperature, and the sticky substance is sticky and thus is difficult to handle. On the other hand, the foamed molded water-stopping material has excellent compressibility and is better in handling than the butyl-based one, but gradually loses resilience when compressed for a long time. As a result, the water pressure resistance deteriorates, causing a problem of water leakage from the joint.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、粘着を有し
ていても再セットが可能で有り、かつ、低圧縮性の性能
と長期圧縮による復元性に優れた性質を持った成形止水
材として理想的な特徴を有する止水材を提供せんとする
ものである。DISCLOSURE OF THE INVENTION The present invention provides a molding water stopper which can be reset even if it has tackiness, and has a property of low compressibility and an excellent restoring property by long-term compression. It is intended to provide a water blocking material having ideal characteristics as a material.
【０００６】[0006]
【課題を解決する手段】本発明の止水材は、スチレン系
エラストマーとしてポリスチレン相（Ｓ）とポリイソプ
レンを水素添加した相（ＥＰ）をもつブロックコポリマ
ーで、結合によりジブロック（ＳＥＰ）、トリブロック
（ＳＥＰＳ、ＳＥＥＰＳ）の構造を有するものを基材と
し、これにパラフィン系オイル、芳香族系オイル及びナ
フテン系オイルから選ばれる１種又は２種以上のプロセ
スオイルを配合して成形したことを特徴とするものであ
る。さらに本発明の止水材は、内部又は側面若しくは外
周に伸びを制御するための補強材を配して成形したこと
を特徴とするものである。The water-stopping material of the present invention is a block copolymer having a polystyrene phase (S) as a styrene-based elastomer and a phase (EP) in which polyisoprene is hydrogenated, and diblock (SEP), triblock by bonding. A base material having a block (SEPS, SEEPS) structure is mixed with one or more process oils selected from paraffinic oils, aromatic oils and naphthenic oils, and molded. It is a feature. Further, the water blocking material of the present invention is characterized in that it is formed by arranging a reinforcing material on the inside or on the side surface or the outer circumference for controlling elongation.
【０００７】本発明の止水材は、基材としてのスチレン
−水添イソプレン共重合体（ＳＥＰ、ＳＥＰＳ）が優れ
た熱安定性を有し、これに上記プロセスオイルの添加に
より低圧縮性弾性体が形成され、長期にわたり復元性、
強度等の物性について優れた性質を有する。また、伸び
を制御するための補強材を目的に応じて選択して芯材等
として成形することにより、止水材の低圧縮性、取扱い
性等を更に向上させることができる。The water-stopping material of the present invention has a styrene-hydrogenated isoprene copolymer (SEP, SEPS) as a base material, which has excellent thermal stability. The body is formed and is resilient over time,
It has excellent physical properties such as strength. Further, by selecting a reinforcing material for controlling elongation according to the purpose and molding it as a core material or the like, it is possible to further improve the low compressibility and handleability of the water blocking material.
【０００８】[0008]
【発明の実施の形態】本発明において用いられる基材
は、スチレン系エラストマーであってポリスチレン相
（Ｓ）とポリイソプレンを水素添加した相（ＥＰ）をも
つブロックコポリマーで、ポリスチレンブロック（Ｓ）
とエラストマーブロック（ＥＰ、ＥＥＰ）との結合によ
りジブロック（ＳＥＰ）、トリブロック（ＳＥＰＳ、Ｓ
ＥＥＰＳ）の３種類のものを使用することができ、これ
らはいずれか一方を又は双方の混合物として用いること
ができる。特に、ポリスチレンブロックの間にポリイソ
プレンとポリエチレンがランダム重合されたＳＥＥＰＳ
が好ましい。ＳＥＰ、ＳＥＰＳ及びＳＥＥＰＳ共重合体
は、スチレン量が１３〜６５重量％のものが好ましく、
特に１３〜３５重量％のものが好ましい。BEST MODE FOR CARRYING OUT THE INVENTION The base material used in the present invention is a styrenic elastomer which is a block copolymer having a polystyrene phase (S) and a polyisoprene hydrogenated phase (EP).
And diblock (SEP), triblock (SEPS, S) by bonding with elastomer block (EP, EEP)
EEPS) can be used, and either one of them or a mixture of both can be used. In particular, SEEPS in which polyisoprene and polyethylene are randomly polymerized between polystyrene blocks.
Is preferred. The SEP, SEPS and SEEPS copolymers preferably have a styrene content of 13 to 65% by weight,
Especially, 13 to 35% by weight is preferable.
【０００９】プロセスオイルとしては、パラフィン系、
ナフテン系及びアロマ（芳香族）系オイルのいずれも使
用でき、これらは目的に応じて１種又は２種以上を混合
して使用することができる。プロセスオイルは、本発明
で使用するスチレン系エラストマーとの相溶性、混和性
の良いものが好ましく、パラフィン系オイルが好まし
く、パラフィンオイルが特に好ましい。本発明の止水材
は、その組成において、強度及び取扱い性からスチレン
系エラストマー１００重量部あたりプロセスオイル１０
０〜１０００重量部の範囲で配合され、２００〜８００
重量部が好ましい。As the process oil, paraffin type,
Both naphthenic oils and aromatic (aromatic) oils can be used, and these can be used alone or in combination of two or more depending on the purpose. The process oil preferably has good compatibility and miscibility with the styrene elastomer used in the present invention, preferably paraffin oil, and particularly preferably paraffin oil. In terms of strength and handleability, the waterproofing material of the present invention has a process oil content of 10 parts by weight per 100 parts by weight of styrene-based elastomer because of its strength and handleability.
Compounded in the range of 0 to 1000 parts by weight, 200 to 800
Parts by weight are preferred.
【００１０】本発明の止水材は、上記スチレン系エラス
トマーとプロセスオイルの２成分を必須成分とするもの
であるが、その他必要に応じて可塑剤、無機充填剤、界
面活性剤、老化防止剤、カーボンブラック、着色剤、軟
化剤、熱可塑性樹脂など他の配合剤を含有してもよい。
製造方法は材料又は混合装置を加熱してエラストマーの
粘性を低下させると短時間で均一な組成物を得ることが
できる。混合装置としてはニーダー、バンバリーミキサ
ー、ミキシングロールなどが用いられる。この組成物は
押出し機、ロール、インジェクションによって帯状・シ
ート状・リング状・型材状に成形される。断面形状は矩
形、台形、凹凸形など制限されない。また２台以上の押
出し機又は共押出し機（co-extruder ）を使用し、組成
の異なる組成物と、あるいは加硫ゴム、未加硫ゴム、熱
可塑性エラストマー、水膨潤性組成物などの異なる部材
と複合させることができる。The water-stopping material of the present invention contains two components of the above-mentioned styrene-based elastomer and process oil as essential components, but if necessary, a plasticizer, an inorganic filler, a surfactant and an antiaging agent. , Other additives such as carbon black, colorants, softeners, and thermoplastic resins may be contained.
In the manufacturing method, a uniform composition can be obtained in a short time by heating a material or a mixing device to reduce the viscosity of the elastomer. A kneader, a Banbury mixer, a mixing roll or the like is used as the mixing device. This composition is formed into a strip shape, a sheet shape, a ring shape, or a molding material shape by an extruder, a roll, or an injection. The sectional shape is not limited to a rectangular shape, a trapezoidal shape, an uneven shape, or the like. Further, two or more extruders or co-extruders are used, and different compositions such as vulcanized rubber, unvulcanized rubber, thermoplastic elastomer, and water-swellable composition are used. Can be combined with.
【００１１】伸びを制御するための補強材としては圧縮
復元可能な弾性材料、例えば、天然ゴム、クロロプレン
ゴム、ＥＰＤＭ、ウレタンゴム等の合成ゴム、軟質ポリ
塩化ビニル、ポリエチレン、ナイロン、ＥＶＡのエラス
トマー及びその発泡体等を長尺状、シート状に形成した
ものを用いることができる。また、補強材はひも状に織
成した繊維等であることもできる。これらの補強材は、
芯材として成形止水材の内部に保持されるように含ませ
てもよく、また、成形される止水材の必要な部分、例え
ば一方又は両方の側面、底面、上面若しくは外周に位置
するように一体的に成形してもよい。補強材は必ずしも
成形材を用いる必要はなく、本発明の止水材の成形時に
共押出し等によって成形されるようにしてもよい。As a reinforcing material for controlling elongation, an elastic material which can be compressed and restored, for example, natural rubber, chloroprene rubber, EPDM, synthetic rubber such as urethane rubber, soft polyvinyl chloride, polyethylene, nylon, EVA elastomer and The foam or the like formed into a long shape or a sheet shape can be used. Further, the reinforcing material may be a fiber woven in a string shape. These reinforcements are
It may be included so as to be retained inside the molded waterproof material as a core material, and may be included in a necessary portion of the molded waterproof material, for example, located on one or both side surfaces, bottom surface, top surface or outer circumference. It may be integrally formed with. It is not always necessary to use a molding material as the reinforcing material, and the reinforcing material may be molded by coextrusion or the like when molding the water blocking material of the present invention.
【００１２】本発明はこれまでの上記の如くの問題点を
有する各止水材の各々の欠点を減少させ、性能的に均衡
のとれた止水材が得られる。本発明で基材として使用す
る水添スチレン−イソプレン共重合体（ＳＥＰ、ＳＥＰ
Ｓ、ＳＥＥＰＳ）は熱可塑性エラストマーであるにも拘
らず、通常のスチレン−イソプレン共重合体（ＳＢＳ、
ＳＩＳ）などの熱可塑性エラストマーよりも分子構造が
しっかりしているため、耐熱性、耐老化性が優れるばか
りでなく、製造した成型物は加硫加工無しで加硫ゴムに
匹敵する高強度と高弾性を持つという特徴を有してい
る。この飽和型熱可塑性エラストマーを基材としてプロ
セスオイルを混合し、成型して製造した成形止水材は、
未加硫ゴムや通常の熱可塑性エラストマーを基材として
成型した成形止水材よりも、引張強度、剪断強度などの
強度特性が優れているため、高い水圧がかかる場所に用
いて優れた止水性を示す。The present invention reduces the drawbacks of each water-stopping material having the above-mentioned problems, and provides a water-stopping material having a balanced performance. Hydrogenated styrene-isoprene copolymer (SEP, SEP) used as a substrate in the present invention
S, SEEPS) is a normal styrene-isoprene copolymer (SBS, although it is a thermoplastic elastomer).
Its molecular structure is stronger than that of thermoplastic elastomers such as SIS), so it not only excels in heat resistance and aging resistance, but the molded products produced have high strength and high strength comparable to vulcanized rubber without vulcanization. It has the characteristic of having elasticity. A molded water-stopping material produced by mixing process oil with this saturated thermoplastic elastomer as a base material and molding,
It has superior strength properties such as tensile strength and shear strength compared to molded water-stopping materials made from unvulcanized rubber or ordinary thermoplastic elastomer as a base material. Indicates.
【００１３】[0013]
【実施例】以下、本発明を実施例により説明するが、本
発明はこれらの例に限定されるものではない。なお、実
施例中で「部」は「重量部」を示す。EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples. In the examples, "part" means "part by weight".
【００１４】実施例１
水添スチレン・ポリイソプレンブロックポリマー（ＳＥ
ＰＳ：セプトン−４０３３、（株）クラレ）１００部、
パラフィンオイル（シェルプロセスオイルＰＷ：昭和シ
ェル石油）２００〜８００部、老化防止剤（イルガノッ
クス１０１０、チバガイギー）２部、着色材（ペリカン
ドライカラー、大日精化）５部を１８０℃で加熱混練
し、厚さ３ｍｍのシート片を作成した。得られたシート
片をダンベル３号で打ち抜き、速度５００ｍｍ／ｍｉｎ
で引張り、引張強度及び伸びを求めた。結果を第１表に
示す。Example 1 Hydrogenated styrene / polyisoprene block polymer (SE
PS: Septon-4033, 100 parts of Kuraray Co., Ltd.,
200-800 parts of paraffin oil (Shell Process Oil PW: Showa Shell Sekiyu), 2 parts of antioxidant (Irganox 1010, Ciba Geigy), 5 parts of coloring material (Pelican dry color, Dainichiseika) are heated and kneaded at 180 ° C. A sheet piece having a thickness of 3 mm was prepared. The obtained sheet piece was punched with dumbbell No. 3, and the speed was 500 mm / min.
And the tensile strength and elongation were determined. The results are shown in Table 1.
【００１５】 [0015]
【００１６】試験例１
実施例１と同じ各素材からなる、ポリスチレン・ポリイ
ソプレンブロックポリマー１００部、パラフィンオイル
４００部、老化防止剤２部及び着色材５部よりなる組成
物を１８０℃で加熱混練し、押出し機で断面形状が幅２
０ｍｍ、厚さ１０ｍｍの帯状体を作成し、これを切断し
て長さ５０ｍｍの試験片を用意した。比較のために同形
状の未加硫ブチルゴム成型品及びＥＰＤＭ発泡体の試験
片を用意した。これらの試験片を厚みの２５％まで圧縮
させ、その状態で２５℃と５０℃の各恒温槽にそれぞれ
２０時間放置し、その後圧縮を解放して圧縮永久ひずみ
を求めた。結果を第２表に示す。なお、未加硫ブチルゴ
ム成型品としてボンドパット（アオイ化学）、ＥＰＤＭ
発泡体は密度１００kg／ｍ3 のものを用いた。Test Example 1 A composition comprising 100 parts of polystyrene / polyisoprene block polymer, 400 parts of paraffin oil, 2 parts of an antioxidant and 5 parts of a coloring material, which is made of the same materials as in Example 1, is heated and kneaded at 180 ° C. And the extruder has a cross section of width 2
A strip having a thickness of 0 mm and a thickness of 10 mm was prepared and cut to prepare a test piece having a length of 50 mm. For comparison, an unvulcanized butyl rubber molded article and an EPDM foam test piece having the same shape were prepared. These test pieces were compressed to 25% of their thickness, and in that state, they were allowed to stand in respective thermostats at 25 ° C. and 50 ° C. for 20 hours, respectively, and thereafter the compression was released to obtain the compression set. The results are shown in Table 2. As unvulcanized butyl rubber molded products, bond pads (Aoi Chemical), EPDM
The foam used had a density of 100 kg / m 3 .
【００１７】 注：実施例１の（ ）内の数字はパラフィンオイルの量を示す。以下、同 じ。[0017] Note: The number in parentheses in Example 1 indicates the amount of paraffin oil. same as below.
【００１８】試験例２
ポリスチレン・ポリイソプレンブロックポリマー（ＳＥ
ＰＳ：セプトン−２０４３、（株）クラレ）１００部、
パラフィンオイル４００部、老化防止剤２部、着色材５
部及び炭酸カルシウム５０部からなる試験例１と同じ組
成物を１８０℃で加熱混練し、インジェクションで断面
形状が幅２０ｍｍ、高さ１０ｍｍで外径３００ｍｍのリ
ング体を作成した。比較品として試験例１と同じ材料で
同形状の未加硫ブチルゴム成型品及びＥＰＤＭ発泡体を
用意した。耐水圧試験機に各供試体をセットし、圧縮率
が３０％及び５０％のときの耐水圧を求めた。耐水圧は
水圧０．５ｋｇｆ／ｃｍ2 毎に１０分間放置し、漏水の
有無を記録し、漏水がなければ昇圧させ、止水の最高水
圧を耐水圧として第３表に示した。Test Example 2 Polystyrene / polyisoprene block polymer (SE
PS: Septon-2043, 100 parts of Kuraray Co., Ltd.,
Paraffin oil 400 parts, anti-aging agent 2 parts, coloring material 5
Part and 50 parts of calcium carbonate, the same composition as in Test Example 1 was heated and kneaded at 180 ° C., and a ring body having a cross-sectional shape of 20 mm in width, 10 mm in height and 300 mm in outer diameter was prepared by injection. As comparative products, an unvulcanized butyl rubber molded product having the same shape as that of Test Example 1 and an EPDM foam were prepared. Each test piece was set in a water pressure resistance tester, and water pressure resistance at compression rates of 30% and 50% was determined. The water pressure resistance was allowed to stand for 10 minutes at a water pressure of 0.5 kgf / cm 2 , and the presence or absence of water leakage was recorded. If there was no water leakage, the pressure was increased, and the maximum water pressure for stopping water is shown in Table 3 as the water pressure resistance.
【００１９】 [0019]
【００２０】試験例３
ポリスチレン・ポリイソプレンブロックポリマー（ＳＥ
ＥＰＳ：セプトン−４０３３、（株）クラレ）１００
部、パラフィンオイル４００部、老化防止剤２部及び着
色材５部からなる試験例１と同じ組成物を１８０℃で加
熱混練し、厚さ２０ｍｍのシート片を作成した。比較に
厚さ２０ｍｍの未加硫ブチルゴム成型品を用意した。各
試験片をそれぞれ５℃、２５℃、５０℃の各恒温槽に入
れて養生し、針入度試験機を使用して各温度での針入度
を測定した。結果を第４表に示す。Test Example 3 Polystyrene / polyisoprene block polymer (SE
EPS: Septon-4033, Kuraray Co., Ltd.) 100
Parts, 400 parts of paraffin oil, 2 parts of anti-aging agent, and 5 parts of coloring material were heated and kneaded at 180 ° C. to prepare 20 mm-thick sheet pieces. For comparison, an unvulcanized butyl rubber molded product having a thickness of 20 mm was prepared. Each test piece was put into each thermostatic bath of 5 ° C., 25 ° C. and 50 ° C. for curing, and the penetration at each temperature was measured using a penetration tester. The results are shown in Table 4.
【００２１】 [0021]
【００２２】試験例４
ポリスチレン・ポリイソプレンブロックポリマー（ＳＥ
Ｐ：セプトン１０５０、（株）クラレ）１００部、パラ
フィンオイル４００部、老化防止剤２部、着色材５部及
び炭酸カルシウム（白艶化ＣＣＲ、白石工業）５０部を
１８０℃で加熱混練し、押出し機で断面形状が幅２０ｍ
ｍ、高さ１０ｍｍの帯状体を作成し、切断して長さ２０
ｍｍの試験片を作製した。比較品として未加硫ブチルゴ
ム成型品を用いて同じ形状の試験片を作製した。これら
の試験片を０℃、２０℃の各恒温槽に入れて養生し、圧
縮試験機を使用して各温度での圧縮ひずみ率と応力を測
定した。結果を第５表に示す。Test Example 4 Polystyrene / polyisoprene block polymer (SE
P: 100 parts of Septon 1050, Kuraray Co., Ltd., 400 parts of paraffin oil, 2 parts of antioxidant, 5 parts of coloring material and 50 parts of calcium carbonate (white luster CCR, Shiraishi Kogyo) are heated and kneaded at 180 ° C., Cross-sectional shape of the extruder is 20m wide
m, height 10mm band-shaped body, cut and length 20
mm test pieces were prepared. As a comparative product, an unvulcanized butyl rubber molded product was used to prepare a test piece having the same shape. These test pieces were put into respective thermostatic baths of 0 ° C. and 20 ° C. for curing, and the compression strain rate and stress at each temperature were measured using a compression tester. The results are shown in Table 5.
【００２３】 [0023]
【００２４】実施例１は本発明のポリスチレン・ポリイ
ソプレンブロックポリマーを基材として、パラフィンオ
イルの部数を種々変化させたものである。第１表に示す
ようにパラフィンオイルの増加によって若干低下する
が、伸び率は低下せず、良好な止水性を示す。試験例は
コンクリート構造物の接合止水成形材として市販されて
いる未加硫ブチルゴムとＥＰＤＭゴム発泡体及び本発明
品とを比較したもので、試験例１は長期圧縮による復元
性を示したもので、本発明の止水材は圧縮復元性に優れ
ており、長期にわたり止水性が確保できる。また、試験
例２は耐水性を比較したもので、本発明品はＥＰＤＭゴ
ム発泡止水材より高い止水性を示している。試験例３及
び４は比較的耐水性の良い未加硫ブチルゴムとの比較
で、試験例３は温度による硬さの変化を針入度で示し、
試験例４は温度による圧縮性を比較したものである。未
加硫ブチルゴムは温度による硬さ変化が大きく、その結
果圧縮性能にも影響し低温ではつぶれにくい傾向にあ
る。これに対し本発明品は低温でも良好な圧縮性能を示
す。In Example 1, the polystyrene / polyisoprene block polymer of the present invention was used as a base material and the number of parts of paraffin oil was variously changed. As shown in Table 1, the amount of paraffin oil slightly decreases, but the elongation does not decrease, showing good water stopping performance. The test example is a comparison of unvulcanized butyl rubber, which is commercially available as a joint water-stop forming material for concrete structures, and the EPDM rubber foam and the product of the present invention. Test example 1 shows resilience by long-term compression. Then, the water blocking material of the present invention is excellent in compression restoration property and can secure the water blocking property for a long period of time. In addition, Test Example 2 is a comparison of water resistance, and the product of the present invention shows higher water blocking performance than the EPDM rubber foam water blocking material. Test Examples 3 and 4 are comparisons with unvulcanized butyl rubber having relatively good water resistance, and Test Example 3 shows the change in hardness with temperature in terms of penetration.
Test Example 4 compares the compressibility with temperature. Unvulcanized butyl rubber has a large change in hardness with temperature, and as a result, it also affects compression performance and tends to collapse at low temperatures. On the other hand, the product of the present invention exhibits good compression performance even at low temperatures.
【００２５】次に、本発明品の成型品としての形状の例
のいくつかを図面に示す。図１は、長い連続した紐状に
成形された本発明品の長さ方向に対して直角方向に裁断
したものの断面形状を示す。図中、１は本発明の止水材
組成物からなる部分で、２はゴム等の弾性部材からなる
芯材（補強材）を示す。図１（ａ）は平帯状物、同
（ｂ）は内部に断面円形の紐状芯材を有する台形の止水
材、同（ｃ）は断面円形の止水材であり、同（ｄ）は止
水性を更に向上させるために平帯状の止水材の表面に凸
部１ａを２条設けた例である。Next, some examples of the shape of the product of the present invention as a molded product are shown in the drawings. FIG. 1 shows a cross-sectional shape of a long continuous cord-shaped product of the present invention cut in a direction perpendicular to the length direction. In the figure, 1 is a portion made of the water blocking material composition of the present invention, and 2 is a core material (reinforcing material) made of an elastic member such as rubber. 1 (a) is a flat strip, FIG. 1 (b) is a trapezoidal waterproof material having a cord-shaped core material having a circular cross section inside, and FIG. 1 (c) is a waterproof material having a circular cross section. Is an example in which two projections 1a are provided on the surface of a flat-belt-shaped waterproofing material in order to further improve the waterproofness.
【００２６】図２は、側面に補強材２を設けた止水材の
例であり、図３及び図４は補強材（芯材）２の変形例を
示す。図３は平帯状の補強材２に適当な間隔で円形ない
し楕円形の孔３を設けたものの例である。この孔３によ
つて補強材２の上下の止水材組成物１が結合し、補強材
との剥れがなくなる。図４は、補強材（芯材）２として
両端からスリット４を入れたものを使用する例で、この
ような補強材を使用することによって止水材の柔軟性を
確保でき曲面等での施工が容易となる。これらの補強材
は、止水材の表面又は底面等に設けてもよく、孔３やス
リット４の大きさや幅を調節することによって、止水材
組成物による施工面への接着性、シール性を得ることが
できる。FIG. 2 shows an example of a water blocking material provided with a reinforcing material 2 on its side surface, and FIGS. 3 and 4 show a modified example of the reinforcing material (core material) 2. FIG. 3 shows an example in which circular or elliptical holes 3 are provided at appropriate intervals in a flat strip-shaped reinforcing member 2. Through the holes 3, the water blocking material composition 1 above and below the reinforcing material 2 is bonded, and peeling from the reinforcing material is eliminated. FIG. 4 shows an example in which slits 4 are inserted from both ends as a reinforcing material (core material) 2. By using such a reinforcing material, the flexibility of the water blocking material can be secured and construction on a curved surface or the like can be performed. Will be easier. These reinforcing materials may be provided on the surface or bottom surface of the water blocking material, and by adjusting the size and width of the holes 3 and the slits 4, the adhesiveness and sealing property of the water blocking material composition to the construction surface can be improved. Can be obtained.
【００２７】本発明はこれまでの上記の如くの問題点を
有する各止水材の各々の欠点を減少させ、性能的に均衡
のとれた止水材を提供する。スチレン−イソプレン共重
合体に於いて、イソプレン相に水素添加を施した相を持
つブロックコポリマーである飽和型熱可塑性エラストマ
ー（ＳＥＰ、ＳＥＰＳ、ＳＥＥＰＳ）は熱可塑性エラス
トマーであるにも拘らず、通常のスチレン−イソプレン
共重合体（ＳＢＳ、ＳＩＳ）などの熱可塑性エラストマ
ーよりも分子構造がしっかりしているため、耐熱性、耐
老化性が優れるばかりでなく、製造した成型物は加硫加
工無しで加硫ゴムに匹敵する高強度と高弾性を持つとい
う特徴を有している。さらに芯材を有することにより伸
びを規制でき、クリヤランスの小さいフリュームの接合
部に適応ができる。また低モジュラスの成形止水材でも
取扱いが容易となる。The present invention reduces the drawbacks of each water blocking material having the above-mentioned problems, and provides a water blocking material having a balanced performance. In a styrene-isoprene copolymer, a saturated thermoplastic elastomer (SEP, SEPS, SEEPS), which is a block copolymer having a hydrogenated phase in the isoprene phase, is a conventional thermoplastic elastomer, although it is a thermoplastic elastomer. Since the molecular structure is firmer than the thermoplastic elastomer such as styrene-isoprene copolymer (SBS, SIS), not only is it excellent in heat resistance and aging resistance, but the molded product produced is vulcanized without vulcanization. It has the characteristics of high strength and high elasticity comparable to that of vulcanized rubber. Further, by having a core material, the elongation can be regulated and it can be applied to the joint portion of the flume with a small clearance. In addition, a molded water-stopping material having a low modulus can be easily handled.
【図１】本発明の各成形材の断面図である。FIG. 1 is a cross-sectional view of each molding material of the present invention.
【図２】本発明の他の実施例の斜視図である。FIG. 2 is a perspective view of another embodiment of the present invention.
【図３】本発明の別の実施例の一部破断斜視図である。FIG. 3 is a partially cutaway perspective view of another embodiment of the present invention.
【図４】本発明における芯材の一例を示す分解斜視図で
ある。FIG. 4 is an exploded perspective view showing an example of a core material according to the present invention.
１ 止水材組成物 ２ 芯材（補強材） ３ 芯材の孔 ４ 芯材のスリット 1 Waterstop composition 2 core material (reinforcing material) 3 Core hole 4 Core material slit
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｅ０３Ｆ 3/04 Ｅ０４Ｂ 1/68 Ａ (56)参考文献 特開 平８−158494（ＪＰ，Ａ) 特開2000−272653（ＪＰ，Ａ) 特開2000−230167（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04B 1/684 C08J 5/18 CEQ C08L 53/00 C08L 91/00 C09K 3/10 E03F 3/04 Continuation of front page (51) Int.Cl. 7 Identification code FI E03F 3/04 E04B 1/68 A (56) Reference JP-A-8-158494 (JP, A) JP-A-2000-272653 (JP, A) JP-A-2000-230167 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) E04B 1/684 C08J 5/18 CEQ C08L 53/00 C08L 91/00 C09K 3/10 E03F 3 / 04
Claims (4)
て、スチレン量が１３〜６５重量％で、イソプレン相に
水素添加を施した相を持つブロックコポリマー（ＳＥ
Ｐ、ＳＥＰＳ、ＳＥＥＰＳ）である飽和型熱可塑性エラ
ストマーを基材として、該基材１００重量部に対してパ
ラフィン系オイル、芳香族系オイル及びナフテン系オイ
ルから選ばれる１種又は２種以上のプロセスオイルを１
００〜１０００重量部配合して成形したことを特徴とす
るコンクリート構造物用止水材。1. A styrene-isoprene copolymer having a styrene content of 13 to 65% by weight and having a hydrogenated phase in the isoprene phase (SE).
P, SEPS, SEEPS) as a base material, and one kind selected from paraffin oils, aromatic oils and naphthenic oils per 100 parts by weight of the base material, or Two or more process oils in one
A water blocking material for a concrete structure , characterized by being molded by blending from 0 to 1000 parts by weight .
で、該基材１００重量部に対してパラフィンオイル２０
０〜８００重量部の範囲で配合・混練し、成形したこと
を特徴とする請求項１記載の止水材。2. The amount of styrene in the base material is 13 to 35% by weight.
In paraffin oil 20 relative to the substrate 100 parts by weight
The water-stopping material according to claim 1 , which is compounded, kneaded and molded in a range of 0 to 800 parts by weight .
項１記載の止水材。3. The water blocking material according to claim 1, wherein the water blocking material has a band shape.
ための補強材としてゴム又はプラスチックからなる弾性
体を配して成形したことを特徴とする請求項３記載の止
水材。4. A made of rubber or plastic as a reinforcing material for controlling the extension beauty inside or side surface of the water stopping material elasticity
The water blocking material according to claim 3, which is formed by arranging a body .
Priority Applications (1)
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|---|---|---|---|
| JP2000310961A JP3430336B2 (en) | 2000-10-11 | 2000-10-11 | Waterproof material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000310961A JP3430336B2 (en) | 2000-10-11 | 2000-10-11 | Waterproof material |
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| Publication Number | Publication Date |
|---|---|
| JP2002115341A JP2002115341A (en) | 2002-04-19 |
| JP3430336B2 true JP3430336B2 (en) | 2003-07-28 |
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| JP6951985B2 (en) * | 2018-02-16 | 2021-10-20 | 古河電気工業株式会社 | Resin composition and water blocking material |
| JP6640272B2 (en) * | 2018-05-14 | 2020-02-05 | 積水フーラー株式会社 | Hot melt composition |
| JP6621126B1 (en) * | 2018-09-25 | 2019-12-18 | 積水フーラー株式会社 | Hot melt coating agent for electronic circuit mounting boards |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000230167A (en) | 1998-12-07 | 2000-08-22 | Bridgestone Corp | Gasket material |
| JP2000272653A (en) | 1999-03-24 | 2000-10-03 | Bridgestone Corp | Seal member |
-
2000
- 2000-10-11 JP JP2000310961A patent/JP3430336B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000230167A (en) | 1998-12-07 | 2000-08-22 | Bridgestone Corp | Gasket material |
| JP2000272653A (en) | 1999-03-24 | 2000-10-03 | Bridgestone Corp | Seal member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002115341A (en) | 2002-04-19 |
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