JPS605178B2 - Steel cord-rubber composite - Google Patents
Steel cord-rubber compositeInfo
- Publication number
- JPS605178B2 JPS605178B2 JP55066280A JP6628080A JPS605178B2 JP S605178 B2 JPS605178 B2 JP S605178B2 JP 55066280 A JP55066280 A JP 55066280A JP 6628080 A JP6628080 A JP 6628080A JP S605178 B2 JPS605178 B2 JP S605178B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- weight
- steel cord
- composite material
- parts
- 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
Links
Landscapes
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 本発明はスチールコード−ゴム複合材の改良に関する。[Detailed description of the invention] This invention relates to improvements in steel cord-rubber composites.
スチールコードーゴム複合材は種々の分野、就中、自動
車や航空機等のタイヤにおいては重要な材料となってい
る。この場合、スチールコードとゴムとの接着性を良く
するためスチールコードに真鈴メッキ処理を施し、また
ゴムに有機コバルト塩および／またはレンジ等を鞍着助
剤として配合すると共に加硫促進剤として遅効性のＮ・
Ｎージシクロヘキシル−２ーベンゾチアゾリルスルフエ
ンアミド（ＤＺ）等を配合することが一般に行なわれて
いる。しかしながら、このようにして得られるスチール
コードーゴム複合材には、十分な初期薮着力と満足すべ
き接着安定性、特に高温多湿下での接着安定性が得られ
ないという問題があった。Steel cord-rubber composites have become important materials in various fields, particularly in tires for automobiles, aircraft, etc. In this case, in order to improve the adhesion between the steel cord and rubber, the steel cord is plated with silver, and organic cobalt salt and/or microwave, etc. are added to the rubber as a saddle adhesion aid and as a vulcanization accelerator. Slow-acting N・
It is common practice to blend N-dicyclohexyl-2-benzothiazolylsulfenamide (DZ) and the like. However, the steel cord-rubber composite material obtained in this manner has a problem in that sufficient initial bush adhesion strength and satisfactory adhesion stability, especially adhesion stability under high temperature and high humidity conditions, cannot be obtained.
このため特に過酷な条件下にさらされるタイヤ等では、
スチールコードとゴムとの接着性に起因する損傷を受け
やすい。本発明はこのような問題を改良するためになさ
れたものであって、その要旨は、基材ゴム１００重量部
、不溶性硫黄３〜１の重量部、有機コバルト塩０．０５
〜１の重量部、およびチアゾール系および／またはチウ
ラム系加硫促進剤０．０５〜０．５重量部含有するゴム
組成物を真鈴メッキしたスチールコード上に接着してな
るスチールコードーゴム複合材にある。For this reason, tires that are exposed to particularly harsh conditions,
Susceptible to damage due to adhesion between steel cord and rubber. The present invention was made to improve such problems, and the gist thereof is: 100 parts by weight of base rubber, 3 to 1 part by weight of insoluble sulfur, and 0.05 parts by weight of organic cobalt salt.
-1 part by weight and 0.05 to 0.5 parts by weight of a thiazole-based and/or thiuram-based vulcanization accelerator.A steel cord-rubber composite material obtained by adhering a rubber composition containing 0.05 to 0.5 parts by weight of a thiazole-based and/or thiuram-based vulcanization accelerator onto a brass-plated steel cord. It is in.
本発明の特徴は、スチールコードーゴム複合材のゴム成
分にチアゾール系および／またはチゥラム系加硫促進剤
を配合させることである。A feature of the present invention is that a thiazole-based and/or thuram-based vulcanization accelerator is blended into the rubber component of the steel cord rubber composite material.
このような加硫促進剤を配合することによって、スチ−
ルコードとゴム組成物との初期接着力を低下させること
なく、高温多湿下での接着安定性および耐久性に優れた
スチールコードーゴム複合材が得られる。本発明に用い
るチァゾール系加硫促進剤としては、２−メルカプトベ
ンゾチアゾール（ＭＢＴ）、ジベンゾチアジルジスルフ
イド（ＭＢＴＳ）、２−（２・４一ジニトロフエニルチ
オ）ペンゾチアゾール、２−（Ｎ・Ｎージエチルチオカ
ルバモイルチオ）ペンゾチアゾール、２−（４′ーモル
ホリ／ジチオ）−ペンゾチアゾール等が例示されるが、
特に好ましいものは２−メルカプトベンゾチアゾール、
ジベンゾチアジルジスフイドである。By blending such a vulcanization accelerator, steel
A steel cord-rubber composite material with excellent adhesive stability and durability under high temperature and high humidity conditions can be obtained without reducing the initial adhesive strength between the steel cord and the rubber composition. The thiazole-based vulcanization accelerator used in the present invention includes 2-mercaptobenzothiazole (MBT), dibenzothiazyl disulfide (MBTS), 2-(2,4-dinitrophenylthio)penzothiazole, 2- Examples include (N·N-diethylthiocarbamoylthio)penzothiazole, 2-(4'-morpholy/dithio)-penzothiazole, etc.
Particularly preferred are 2-mercaptobenzothiazole,
It is dibenzothiadyldisphide.
また、チゥラム系加硫促進剤としては、テトラメチルチ
ウラムモノスルフイド、テトラメチルチウラムジスルフ
イド（ＴＭＴＤ）、テトラエチルチウラムジスルフイド
、テトラブチルチウラムモノスルフイド、ジメチルジフ
エニルチウラムジスルフイド、テトラメチルチウラムテ
トラスルフイド、等が例示されるが、特に好ましいもの
は、テトラメチルチウラムモノスルフイド、テトラメチ
ルチウラムジスルフイドである。このようなチアゾール
系およびチウラム系の加硫促進剤は１種または２種以上
の混合促進剤として用いてもよい。In addition, examples of thuram-based vulcanization accelerators include tetramethylthiuram monosulfide, tetramethylthiuram disulfide (TMTD), tetraethylthiuram disulfide, tetrabutylthiuram monosulfide, and dimethyldiphenylthiuram disulfide. , tetramethylthiuram tetrasulfide, etc., and particularly preferred are tetramethylthiuram monosulfide and tetramethylthiuram disulfide. Such thiazole-based and thiuram-based vulcanization accelerators may be used alone or as a mixed accelerator.
上記加稀促進剤の配合量は、通常基材ゴム１００重量部
に対して０．０５〜０．５重量部である。The blending amount of the thickening accelerator is usually 0.05 to 0.5 parts by weight per 100 parts by weight of the base rubber.
０．０５重量部よりも少ないとスチールコードとゴムと
の十分な接着安定性は得られず、また、０．５重量部よ
りも多くなっても加硫速度が速くなって十分な接着が得
られない。If it is less than 0.05 parts by weight, sufficient adhesion stability between the steel cord and rubber cannot be obtained, and if it is more than 0.5 parts by weight, the vulcanization rate increases and sufficient adhesion cannot be obtained. I can't do it.
また上記のチアゾール系およびチウラム系の加硫促進剤
は他の常套の加硫促進剤と併用してもよく、この場合、
チアゾール系および／またはチウラム系の加硫促進剤の
配合量は、ゴム組成物に配合する全加硫促進剤の２〜５
の重量％にするのが一般的である。Additionally, the above thiazole-based and thiuram-based vulcanization accelerators may be used in combination with other conventional vulcanization accelerators, in which case,
The blending amount of the thiazole-based and/or thiuram-based vulcanization accelerator is 2 to 5% of the total vulcanization accelerators blended into the rubber composition.
Generally, it is set to % by weight.
特に好ましい組合せは、チアゾール系および／またはチ
ウラム系のものとＤＺとの組合せである。本発明に用い
る基材ゴムは特に限定的ではなく、従来からこの種のス
チールコードーゴム複合材に常用されているもの、例え
ば、天然ゴムもしくは天然ゴムと合成ポリィソプレンゴ
ムとの混合物等を使用すればよい。A particularly preferred combination is a combination of a thiazole type and/or a thiuram type and DZ. The base rubber used in the present invention is not particularly limited, and those commonly used for this type of steel cord-rubber composite materials, such as natural rubber or a mixture of natural rubber and synthetic polyisoprene rubber, can be used. do it.
不溶性硫黄は加硫剤として用いるものであって、その配
合量は、基材ゴム１０の重量部に対して通常３〜１の重
量部である。Insoluble sulfur is used as a vulcanizing agent, and its amount is usually 3 to 1 part by weight based on the weight of the base rubber 10.
３重量部よりも少ないと十分な接着性を得ることができ
ず、また１の重量部以上になると引張り強さや伸びが著
しく低下し、十分な物性が得られない。If it is less than 3 parts by weight, sufficient adhesion cannot be obtained, and if it is more than 1 part by weight, the tensile strength and elongation are significantly reduced and sufficient physical properties cannot be obtained.
有機コバルト塩は懐着助剤として用いるもので、その配
合量は基材ゴム１００重量部に対して０．０５〜１の重
量部、好ましくは２〜７重量部であり、これよりも多く
ても少なくても薮着助剤としての役割を十分果さなら、
。The organic cobalt salt is used as an adhesion aid, and its amount is 0.05 to 1 part by weight, preferably 2 to 7 parts by weight, and not more than 100 parts by weight of the base rubber. If it plays a sufficient role as a bush setting aid,
.
本発明に係わるゴム組成物には上記成分の他に、常套の
各種添加剤、例えば亜鉛華やステアリン酸等の加稀助剤
、カーボンブラック等の補助剤、６−アミノ−２・２・
４ートリメチルー１・２−ジヒドロキノリン等の老化防
止剤等を適宜配合してもよい。In addition to the above-mentioned components, the rubber composition according to the present invention contains various conventional additives, such as additives such as zinc white and stearic acid, adjuvants such as carbon black, and 6-amino-2.2.
Anti-aging agents such as 4-trimethyl-1,2-dihydroquinoline and the like may be blended as appropriate.
本発明に用いるスチールコードは、常法、例えば拡散メ
ッキ法によって通常鋼比５７〜６７％、好ましくは６０
〜６５％で真銭メッキ処理して用いる。The steel cord used in the present invention is produced by a conventional method, such as a diffusion plating method, with a ratio of 57 to 67%, preferably 60%, compared to ordinary steel.
It is used after being plated at ~65%.
真鈴メッキの銅比が上記範囲外になると一般に、真鈴メ
ッキスチールコードとゴム組成物とを組み合わせて得ら
れる複合材の接着安定性を低下させる。本発明によるス
チールコードーゴム複合材は自転車、自動車、航空機等
のタイヤをはじめ、ベルト、ホース、防げん材等幅広く
利用できるものである。When the copper ratio of the maru plating is outside the above range, the adhesion stability of the composite material obtained by combining the maru plating steel cord and the rubber composition is generally reduced. The steel cord-rubber composite material according to the present invention can be used in a wide range of applications, including tires for bicycles, automobiles, and aircraft, as well as belts, hoses, and protection materials.
以下、本発明を実施例によって説明する。Hereinafter, the present invention will be explained by examples.
実施例および比較例
表−１の配合処方によって６種類のゴム組成物を常法に
より調製した。EXAMPLES AND COMPARATIVE EXAMPLES Six types of rubber compositions were prepared by conventional methods according to the formulations shown in Table 1.
表−１
一方、銅比を６３％として常套の真鈴メッキ法によって
スチールコードに真銭メッキする。Table 1 On the other hand, the steel cord was plated with a copper ratio of 63% using the conventional silver plating method.
このようにして得られた６種類のゴム組成物１〜６と真
鈴メッキスチールコードをそれぞれ組み合わせて得られ
るスチールコードーゴム複合材１〜６およびスチールタ
イヤ１〜６に関して次の議酸をおこなった。The following acidification was performed on steel cord-rubber composites 1-6 and steel tires 1-6, which were obtained by combining the six types of rubber compositions 1-6 obtained in this manner and true-plated steel cords, respectively. .
試験１
スチールコードーゴム複合材を高温多湿下（８０℃、９
５％ＲＨ）に所定時間（０〜２０餌時間）放置後、剥離
試験を行ない、そのゴム付着率を測定した。Test 1 Steel cord-rubber composite material was exposed to high temperature and humidity (80℃, 9
5% RH) for a predetermined period of time (0 to 20 feeding hours), a peel test was conducted and the rubber adhesion rate was measured.
測定結果を表−２に示す。− ２
試験２
スチールタイヤを荷重５００ｋ９、内圧１．９ｋ９／係
、速度７０靴／時の条件下にマシン耐久テストで５万助
走行させ、走行後のスチールコードへのゴム付着率（％
）を測定した。The measurement results are shown in Table-2. - 2 Test 2 A steel tire was run for 50,000 hours in a machine durability test under the conditions of a load of 500k9, an internal pressure of 1.9k9/h, and a speed of 70 shoes/h, and the rate of rubber adhesion to the steel cord after running (%)
) was measured.
Claims (1)
、有機コバルト塩０．０５〜１０重量部、およびチアゾ
ール系および／またはチウラム系加硫促進剤０．０５〜
０．５重量部含有するゴム組成物を真鍮メツキしたスチ
ールコード上に接着してなるスチールコード−ゴム複合
材。 ２ チアゾール系および／またはチウラム系加硫促進剤
の配合量がゴム組成物に配合する全加硫促進剤の２〜５
０重量％である第１項記載の複合材。 ３ 有機コバルト塩がナフテン酸コバルトである第１項
記載の複合材。 ４ 基材ゴムが天然ゴムもしくは天然ゴムと合成ポリイ
ソプレンゴムとの混合物である第１項記載の複合材。 ５ スチールコードが銅比６０〜６５％で拡散法によつ
て真鍮メツキされたスチールコードである第１項記載の
複合材。[Scope of Claims] 1. 100 parts by weight of base rubber, 3 to 10 parts by weight of insoluble sulfur, 0.05 to 10 parts by weight of organic cobalt salt, and 0.05 to 0.05 parts by weight of thiazole-based and/or thiuram-based vulcanization accelerator.
A steel cord-rubber composite material made by adhering a rubber composition containing 0.5 parts by weight onto a brass-plated steel cord. 2 The amount of the thiazole-based and/or thiuram-based vulcanization accelerator is 2 to 5 of the total vulcanization accelerators blended into the rubber composition.
2. The composite material according to claim 1, wherein the composite material has a content of 0% by weight. 3. The composite material according to item 1, wherein the organic cobalt salt is cobalt naphthenate. 4. The composite material according to item 1, wherein the base rubber is natural rubber or a mixture of natural rubber and synthetic polyisoprene rubber. 5. The composite material according to item 1, wherein the steel cord is a steel cord plated with brass by a diffusion method with a copper ratio of 60 to 65%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55066280A JPS605178B2 (en) | 1980-05-19 | 1980-05-19 | Steel cord-rubber composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55066280A JPS605178B2 (en) | 1980-05-19 | 1980-05-19 | Steel cord-rubber composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56162648A JPS56162648A (en) | 1981-12-14 |
| JPS605178B2 true JPS605178B2 (en) | 1985-02-08 |
Family
ID=13311252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55066280A Expired JPS605178B2 (en) | 1980-05-19 | 1980-05-19 | Steel cord-rubber composite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS605178B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60115642A (en) * | 1983-11-28 | 1985-06-22 | Yokohama Rubber Co Ltd:The | Rubber composition for steel cord covering |
| JP5955497B2 (en) * | 2010-08-31 | 2016-07-20 | 横浜ゴム株式会社 | Rubber composition for bonding brass plating wire and hydraulic hose |
-
1980
- 1980-05-19 JP JP55066280A patent/JPS605178B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56162648A (en) | 1981-12-14 |
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