JPH11268188A - Fiber-reinforced rubber and large-bore rubber hose - Google Patents
Fiber-reinforced rubber and large-bore rubber hoseInfo
- Publication number
- JPH11268188A JPH11268188A JP7044098A JP7044098A JPH11268188A JP H11268188 A JPH11268188 A JP H11268188A JP 7044098 A JP7044098 A JP 7044098A JP 7044098 A JP7044098 A JP 7044098A JP H11268188 A JPH11268188 A JP H11268188A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- fiber
- vulcanization
- reinforcing fibers
- reinforcing
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 67
- 239000005060 rubber Substances 0.000 title claims abstract description 67
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 49
- 239000000835 fiber Substances 0.000 claims abstract description 48
- 238000004073 vulcanization Methods 0.000 claims abstract description 42
- 238000013329 compounding Methods 0.000 claims abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 8
- 238000000465 moulding Methods 0.000 abstract description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000012779 reinforcing material Substances 0.000 abstract description 5
- 239000011787 zinc oxide Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010692 aromatic oil Substances 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000004014 plasticizer Substances 0.000 abstract description 2
- 239000000470 constituent Substances 0.000 abstract 1
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 12
- 239000005020 polyethylene terephthalate Substances 0.000 description 12
- 230000014759 maintenance of location Effects 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 description 4
- 239000002759 woven fabric Substances 0.000 description 4
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 239000002174 Styrene-butadiene Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 235000014692 zinc oxide Nutrition 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Artificial Filaments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、繊維補強ゴム及び
大口径ゴムホースに係り、特に、長時間加硫による補強
繊維の強力の低下が大幅に改善された繊維補強ゴム及び
このような繊維補強ゴムで構成される大口径ゴムホース
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber reinforced rubber and a large-diameter rubber hose, and more particularly to a fiber reinforced rubber and a fiber reinforced rubber in which the strength of reinforcing fibers is significantly reduced by long-time vulcanization. A large diameter rubber hose composed of:
【０００２】[0002]
【従来の技術】従来、ゴム本体内に補強繊維を埋設する
ことにより、弾性等のゴム本来の特性を維持した上で、
補強繊維による機械的強度の向上を図った繊維補強ゴム
が、幅広い分野で使用されている。このような繊維補強
ゴムよりなる耐圧ゴムホースの場合、高強度、高弾性率
が要求されることから、強度、弾性に優れたポリエチレ
ンテレフタレート（ＰＥＴ）繊維の織物が使用されてい
る。2. Description of the Related Art Conventionally, by embedding reinforcing fibers in a rubber body, while maintaining the original characteristics of rubber such as elasticity,
BACKGROUND ART Fiber reinforced rubbers for which mechanical strength is improved by reinforcing fibers are used in a wide range of fields. In the case of a pressure-resistant rubber hose made of such fiber-reinforced rubber, high strength and a high elastic modulus are required, and therefore, a woven fabric of polyethylene terephthalate (PET) fiber having excellent strength and elasticity is used.
【０００３】このような繊維補強ゴム製品は、未加硫ゴ
ム内に補強繊維を埋設した状態で加硫し、ゴムを硬化さ
せると共に、ゴムと繊維とを接着させることにより製造
されている。[0003] Such a fiber-reinforced rubber product is manufactured by vulcanizing the unvulcanized rubber in a state in which the reinforcing fiber is buried, curing the rubber, and bonding the rubber and the fiber.
【０００４】[0004]
【発明が解決しようとする課題】このような繊維補強ゴ
ム製品において、補強繊維としてＰＥＴ繊維を用いる
と、加硫によるＰＥＴ繊維の熱劣化でＰＥＴ繊維の強力
が低下する。特に、内径３００〜１０００ｍｍといった
大口径ゴムホースでは、ゴム層及び内部の補強材層を含
めた肉厚が５０〜１００ｍｍの非常に厚いものとなるこ
とから、内部まで完全に加硫させるために５００〜１０
００分もの長時間加硫を行う必要があり、このような長
時間加硫でＰＥＴ繊維の強力は大幅に低下する。In such a fiber-reinforced rubber product, when PET fiber is used as a reinforcing fiber, the strength of the PET fiber is reduced due to thermal deterioration of the PET fiber due to vulcanization. In particular, in the case of a large diameter rubber hose having an inner diameter of 300 to 1000 mm, the wall thickness including the rubber layer and the inner reinforcing material layer becomes very thick of 50 to 100 mm. 10
It is necessary to perform vulcanization for as long as 00 minutes, and the strength of the PET fiber is greatly reduced by such a long vulcanization.
【０００５】このため、従来においては、この加硫によ
るＰＥＴ繊維の強力低下を考慮した上で、補強材の配材
設計が行われており、ＰＥＴ繊維織物の積層枚数が多
く、このために製品が厚肉で重いものとなる上に、成形
工程数が多く、製品コストも高騰するなどの問題があっ
た。[0005] For this reason, in the past, the distribution of the reinforcing material was designed in consideration of the reduction in the strength of the PET fiber due to the vulcanization, and the number of laminated PET fiber fabrics was large. However, in addition to the fact that it becomes thick and heavy, there are problems that the number of molding steps is large, and that the product cost also rises.
【０００６】本発明は、上記従来の問題点を解決し、長
時間加硫による補強繊維の強力低下が大幅に改善され、
製品の薄肉、軽量化、成形工数の削減、コストダウンが
可能な繊維補強ゴム及びこの繊維補強ゴムよりなる大口
径ゴムホースを提供することを目的とする。The present invention solves the above-mentioned conventional problems, and greatly reduces the strength reduction of reinforcing fibers due to long-time vulcanization.
An object of the present invention is to provide a fiber reinforced rubber capable of reducing the thickness and weight of a product, reducing the number of molding steps, and reducing costs, and a large-diameter rubber hose made of the fiber reinforced rubber.
【０００７】[0007]
【課題を解決するための手段】請求項１の繊維補強ゴム
は、未加硫ゴムと補強繊維とを複合して加硫することに
より製造された繊維補強ゴムにおいて、加硫前の補強繊
維の強力に対する、１４０℃，１０００分の加硫条件で
加硫した後の該補強繊維の強力の割合が６０%以上であ
ることを特徴とする。The fiber reinforced rubber according to claim 1 is a fiber reinforced rubber produced by compounding and vulcanizing an unvulcanized rubber and a reinforcing fiber, wherein the reinforcing fiber before vulcanization is obtained. The ratio of the strength of the reinforcing fiber after vulcanization under vulcanization conditions of 140 ° C. and 1000 minutes to the tenacity is at least 60%.
【０００８】加硫前の補強繊維の強力に対する、１４０
℃，１０００分の加硫条件で加硫した後の補強繊維の強
力の割合（以下において、この割合を「強力保持率」と
称す。）が６０％以上を確保できるものであれば、長時
間加硫における補強繊維の劣化が問題になることはな
く、十分な補強効果を得ることができる。[0008] The strength of the reinforcing fiber before vulcanization, 140
If the ratio of the strength of the reinforcing fibers after vulcanization under the vulcanization conditions of 1000 ° C. and 1000 minutes (hereinafter, this ratio is referred to as “strength retention”) can secure 60% or more, long time is required. Deterioration of the reinforcing fibers during vulcanization does not become a problem, and a sufficient reinforcing effect can be obtained.
【０００９】請求項１の繊維補強ゴムは、ポリエチレン
−２，６−ナフタレート（ＰＥＮ）繊維で補強されてい
ることを特徴とする。[0009] The fiber reinforced rubber according to claim 1 is characterized in that it is reinforced with polyethylene-2,6-naphthalate (PEN) fiber.
【００１０】ＰＥＮ繊維は高強度、高弾性率である上
に、耐熱性にも優れ、長時間加硫を行っても熱劣化の問
題がなく、上記強力保持率を十分に満足することができ
る。[0010] The PEN fiber has high strength and high elastic modulus, and also has excellent heat resistance, has no problem of thermal deterioration even after long-time vulcanization, and can sufficiently satisfy the above-mentioned strength retention. .
【００１１】請求項１の繊維補強ゴムにおいても、補強
繊維はＰＥＮ繊維であることが好ましい。In the fiber-reinforced rubber of the first aspect, the reinforcing fibers are preferably PEN fibers.
【００１２】このような繊維補強ゴムよりなる本発明の
大口径ゴムホースであれば、長時間加硫による補強繊維
の強力低下が著しく小さいため、補強繊維による補強効
果を有効に発揮させることができる。従って、補強材設
計において、補強繊維織物の積層枚数を従来の１０〜３
０枚から３０％程度も低減することができ、これによ
り、製品の薄肉、軽量化、成形工数の削減、コストダウ
ン等を図ることができる。With the large-diameter rubber hose of the present invention made of such fiber-reinforced rubber, the reduction in the strength of the reinforcing fibers due to long-time vulcanization is extremely small, so that the reinforcing effect of the reinforcing fibers can be effectively exhibited. Therefore, in the design of the reinforcing material, the number of layers of the reinforcing fiber woven fabric is set to 10 to
It is possible to reduce the number of sheets from about 0 to about 30%, thereby making it possible to reduce the thickness and weight of the product, reduce the number of molding steps, reduce costs, and the like.
【００１３】[0013]
【発明の実施の形態】以下に本発明の実施の形態を詳細
に説明する。Embodiments of the present invention will be described below in detail.
【００１４】本発明の繊維補強ゴムは、強力保持率６０
％以上、好ましくは７０％以上、より好ましくは７５％
以上を満足するものである。The fiber reinforced rubber of the present invention has a strong retention of 60
% Or more, preferably 70% or more, more preferably 75%
The above is satisfied.
【００１５】強力保持率が６０％未満では、長時間加硫
条件において強力の劣化割合が大きすぎて補強繊維によ
る十分な補強効果を発揮する製品を得ることができな
い。If the retention of strength is less than 60%, the rate of deterioration of strength under long-term vulcanization conditions is too large to obtain a product exhibiting a sufficient reinforcing effect by the reinforcing fibers.
【００１６】このような繊維補強ゴムは、補強繊維とし
て従来のＰＥＴ繊維に代えてＰＥＮ繊維を用いることに
より容易に実現することができる。Such a fiber reinforced rubber can be easily realized by using a PEN fiber instead of a conventional PET fiber as a reinforcing fiber.
【００１７】補強繊維として用いるＰＥＮ繊維の形態
（デニール、撚り数等）には特に制限はなく、また、Ｐ
ＥＮ繊維織物の織形態についても特に制限はない。The form (denier, number of twists, etc.) of the PEN fiber used as the reinforcing fiber is not particularly limited.
The woven form of the EN fiber woven fabric is not particularly limited.
【００１８】補強繊維としては、ＰＥＮ繊維のみを用い
ても良く、また、ＰＥＮ繊維とＰＥＴ繊維等の他の繊維
との複合繊維であっても良い。また、補強織物について
も、ＰＥＮ繊維のみから構成されるものであっても、Ｐ
ＥＮ繊維とＰＥＴ繊維等の他の繊維との複合織物であっ
ても良い。As the reinforcing fiber, only PEN fiber may be used, or a composite fiber of PEN fiber and another fiber such as PET fiber may be used. Also, as for the reinforcing fabric, even if it is composed only of PEN fiber, P
A composite fabric of another fiber such as an EN fiber and a PET fiber may be used.
【００１９】ただし、長時間加硫による補強繊維の強力
低下を防止して、前記強力保持率を満足するためには、
補強繊維としてＰＥＮ繊維のみを用いるのが好ましい。However, in order to prevent the strength of the reinforcing fiber from decreasing due to vulcanization for a long time and to satisfy the above strength retention,
It is preferable to use only PEN fibers as the reinforcing fibers.
【００２０】一方、ゴム本体を構成するゴム組成物とし
ては特に制限はなく、主成分となるゴム成分に、加硫
剤、促進剤（加硫促進剤）、補強剤としてのカーボン、
酸化亜鉛（亜鉛華）等、可塑剤としてのアロマティック
系オイル、更に必要に応じて、老化防止剤、離型剤、分
散剤、硬化剤、粘着性調整剤等の加工助剤や増量材、着
色材といった通常の添加剤が配合された通常のゴム組成
物を用いることができる。On the other hand, the rubber composition constituting the rubber main body is not particularly limited, and a vulcanizing agent, an accelerator (vulcanization accelerator), carbon as a reinforcing agent,
Aromatic oils as plasticizers such as zinc oxide (zinc white), and, if necessary, processing aids and extenders such as antioxidants, release agents, dispersants, curing agents, and tackifiers; An ordinary rubber composition containing an ordinary additive such as a coloring material can be used.
【００２１】なお、ゴム成分としては、天然ゴム、スチ
レンブタジエンゴム（ＳＢＲ）、ＮＢＲ（ニトリルゴ
ム）、クロロプレンゴム（ＣＲ）、ハイパロン（ＣＳ
Ｍ）、ウレタンゴム（Ｕ）、アクリルゴム（ＡＣＭ、Ａ
ＮＭ）、エチレンプロピレンゴム（ＥＰＭ、ＥＰＤ
Ｍ）、ブチルゴム（ＩＩＲ）、ブタジエンゴム（ＢＲ）
等の１種又は２種以上のブレンドゴムを用いることがで
きる。The rubber components include natural rubber, styrene butadiene rubber (SBR), NBR (nitrile rubber), chloroprene rubber (CR), and hypalone (CS).
M), urethane rubber (U), acrylic rubber (ACM, A
NM), ethylene propylene rubber (EPM, EPD)
M), butyl rubber (IIR), butadiene rubber (BR)
One or more blend rubbers can be used.
【００２２】本発明の繊維補強ゴムは、通常のゴム組成
物よりなる未加硫ゴム内にＰＥＮ繊維等の補強繊維を埋
設し、常法に従って成形加硫することに容易に製造する
ことができる。そして、この加硫に当たっては、加硫時
の補強繊維の劣化が防止されるため、加硫条件に特に制
約を受けることはなく、１２０〜１５０℃、３００〜１
０００分といった幅広い条件範囲から加硫条件を設定す
ることができ、特に５００〜１０００分といった長時間
加硫であっても、補強繊維の劣化が問題となることはな
いため、大口径ホースに有効に適用可能である。The fiber reinforced rubber of the present invention can be easily produced by embedding reinforcing fibers such as PEN fibers in an unvulcanized rubber made of a usual rubber composition, and molding and vulcanizing according to a conventional method. . In this vulcanization, the deterioration of the reinforcing fibers at the time of vulcanization is prevented, so that the vulcanization conditions are not particularly limited, and are set at 120 to 150 ° C. and 300 to 1
Vulcanization conditions can be set from a wide range of conditions such as 000 minutes, and especially for long-time vulcanization such as 500 to 1000 minutes, deterioration of reinforcing fibers does not pose a problem, so it is effective for large-diameter hoses. Applicable to
【００２３】本発明の大口径ホースは、このような本発
明の繊維補強ゴムにより構成される内径３００〜１００
０ｍｍ，肉厚５０〜３００ｍｍ程度のものであり、その
層構成や製造時の加硫条件等については特に制限はない
が、本発明によれば、長時間加硫による補強繊維の劣化
が防止され、十分は補強効果が得られることから、補強
繊維量を従来品に比べて３０％程度低減することができ
る。The large-diameter hose of the present invention has an inner diameter of 300 to 100 constituted by the fiber-reinforced rubber of the present invention.
It has a thickness of about 0 mm and a thickness of about 50 to 300 mm. The layer structure and vulcanization conditions at the time of production are not particularly limited. However, according to the present invention, deterioration of the reinforcing fibers due to long-time vulcanization is prevented. Since a sufficient reinforcing effect can be obtained, the amount of reinforcing fibers can be reduced by about 30% as compared with conventional products.
【００２４】[0024]
【実施例】以下に実施例及び比較例を挙げて本発明をよ
り具体的に説明する。The present invention will be described more specifically below with reference to examples and comparative examples.
【００２５】実施例１〜６，比較例１〜３ 下記の材料を用いて、図１に示す積層構造のゴムホース
（内径４００φｍｍ，肉厚２３５ｍｍ）を、加硫缶によ
るスチーム加硫方式で、１４０℃で表１に示す時間加硫
することにより作製した。Examples 1 to 6, Comparative Examples 1 to 3 Using the following materials, a rubber hose (inner diameter 400 mm, wall thickness 235 mm) having a laminated structure shown in FIG. It was produced by vulcanizing at a temperature of ° C. for the time shown in Table 1.
【００２６】〈使用材料〉 外皮ゴム層１のゴム：ＮＲ／ＳＢＲ系（厚さ６ｍｍ） スポンジ補強層２の材料：ポリアミド繊維（厚さ４ｍ
ｍ） スポンジ３の材料：ポリエチレンスポンジ（厚さ２００
ｍｍ） 中間ゴム層４のゴム：ＮＲ／ＳＢＲ系（厚さ５ｍｍ） 補強繊維層（スダレ織物）５の補強繊維（縦糸）：表１
に示す通り（スダレ織物；１５００Ｄ／２では１５枚積
層、厚さ１５ｍｍ、１５００Ｄ／２／３では１０枚積
層、厚さ１５ｍｍ） 内管ゴム６のゴム：ＮＢＲ系（厚さ５ｍｍ） なお、各層の接着ゴムとしては、ＮＲ／ＳＢＲ系ゴムを
用いた。<Materials Used> Rubber of outer rubber layer 1: NR / SBR system (thickness 6 mm) Material of sponge reinforcing layer 2: polyamide fiber (thickness 4 m)
m) Material of sponge 3: polyethylene sponge (thickness 200)
mm) Rubber of the intermediate rubber layer 4: NR / SBR system (thickness 5 mm) Reinforcing fiber (warp) of the reinforcing fiber layer (suddle fabric) 5: Table 1
(Sudare woven fabric; 15 layers for 1500D / 2, 15 mm in thickness, 10 layers for 1500D / 2/3, 15 mm in thickness) Rubber of inner tube rubber 6: NBR system (5 mm in thickness) NR / SBR rubber was used as the adhesive rubber.
【００２７】加硫前の補強繊維の強力及び伸びと、各加
硫時間で加硫した後の補強繊維の強力を下記方法で測定
し、この測定結果と強力保持率の計算結果を表１に示し
た。The strength and elongation of the reinforcing fiber before vulcanization and the strength of the reinforcing fiber after vulcanization at each vulcanization time were measured by the following methods. Table 1 shows the measurement results and the calculation results of the strength retention. Indicated.
【００２８】〈強力、伸び測定法〉ＪＩＳ Ｌ１０１７
に準拠して、つかみ間隔２５ｃｍ，引張速度３０ｃｍ／
ｍｉｎで測定した。加硫後の補強繊維については、加硫
後のホースを解体し、補強繊維層から繊維コードを取り
出し、ゴムが若干付着した状態で測定した。<Strength and elongation measurement method> JIS L1017
According to, the gripping distance is 25 cm, and the pulling speed is 30 cm /
It was measured in min. With respect to the reinforcing fibers after vulcanization, the hose after vulcanization was disassembled, the fiber cord was taken out from the reinforcing fiber layer, and the measurement was performed in a state where the rubber was slightly adhered.
【００２９】[0029]
【表１】 [Table 1]
【００３０】表１より、ＰＥＮ繊維を用いた実施例１〜
６では、ＰＥＴ繊維を用いた比較例１〜３に比べて、長
時間加硫による強力の低下が小さく、強力保持率７５％
以上を確保できることが明らかである。From Table 1, it can be seen that Examples 1 to 4 using PEN fiber were used.
In No. 6, the decrease in strength due to long-time vulcanization was smaller than in Comparative Examples 1 to 3 using PET fibers, and the strength retention was 75%.
It is clear that the above can be secured.
【００３１】[0031]
【発明の効果】以上詳述した通り、本発明によれば、長
時間加硫による補強繊維の強力低下が大幅に改善され
る。このため、補強繊維量を低減して、製品の薄肉、軽
量化、成形工数の削減、コストダウン等を図ることがで
きる。As described in detail above, according to the present invention, the reduction in the strength of the reinforcing fibers due to long-time vulcanization is greatly improved. For this reason, the amount of reinforcing fibers can be reduced, and the product can be made thinner and lighter, the number of molding steps can be reduced, and the cost can be reduced.
【図１】実施例で製造したゴムホースの構造を示す模式
的な断面図である。FIG. 1 is a schematic sectional view showing the structure of a rubber hose manufactured in an example.
１ 外皮ゴム ２ スポンジ補強層 ３ スポンジ ４ 中間ゴム層 ５ 補強繊維層 ６ 内管ゴム Reference Signs List 1 outer rubber 2 sponge reinforcing layer 3 sponge 4 intermediate rubber layer 5 reinforcing fiber layer 6 inner tube rubber
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ２９Ｋ 21:00 105:08 105:24 Ｂ２９Ｌ 9:00 23:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI B29K 21:00 105: 08 105: 24 B29L 9:00 23:00
Claims (4)
することにより製造された繊維補強ゴムにおいて、 加硫前の補強繊維の強力に対する、１４０℃，１０００
分の加硫条件で加硫した後の該補強繊維の強力の割合が
６０%以上であることを特徴とする繊維補強ゴム。1. A fiber reinforced rubber produced by compounding and vulcanizing an unvulcanized rubber and a reinforcing fiber, wherein the strength of the reinforcing fiber before vulcanization is 140 ° C., 1000 ° C.
A fiber reinforced rubber, wherein the strength ratio of the reinforcing fibers after vulcanization under the vulcanization conditions of 60 minutes or more is 60% or more.
レン−２，６−ナフタレート繊維であることを特徴とす
る繊維補強ゴム。2. The fiber reinforced rubber according to claim 1, wherein the reinforcing fibers are polyethylene-2,6-naphthalate fibers.
維で補強されていることを特徴とする繊維補強ゴム。3. A fiber-reinforced rubber reinforced with polyethylene-2,6-naphthalate fiber.
の繊維補強ゴムよりなる大口径ゴムホース。4. A large-diameter rubber hose comprising the fiber-reinforced rubber according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7044098A JPH11268188A (en) | 1998-03-19 | 1998-03-19 | Fiber-reinforced rubber and large-bore rubber hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7044098A JPH11268188A (en) | 1998-03-19 | 1998-03-19 | Fiber-reinforced rubber and large-bore rubber hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11268188A true JPH11268188A (en) | 1999-10-05 |
Family
ID=13431566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7044098A Pending JPH11268188A (en) | 1998-03-19 | 1998-03-19 | Fiber-reinforced rubber and large-bore rubber hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11268188A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10108846B4 (en) * | 2000-07-04 | 2005-08-25 | Hitachi, Ltd. | brake hose |
-
1998
- 1998-03-19 JP JP7044098A patent/JPH11268188A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10108846B4 (en) * | 2000-07-04 | 2005-08-25 | Hitachi, Ltd. | brake hose |
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