JPS6330137B2 - - Google Patents

Info

Publication number
JPS6330137B2
JPS6330137B2 JP55059168A JP5916880A JPS6330137B2 JP S6330137 B2 JPS6330137 B2 JP S6330137B2 JP 55059168 A JP55059168 A JP 55059168A JP 5916880 A JP5916880 A JP 5916880A JP S6330137 B2 JPS6330137 B2 JP S6330137B2
Authority
JP
Japan
Prior art keywords
rubber
intermediate layer
vulcanized
vulcanized rubber
conductive
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
Application number
JP55059168A
Other languages
English (en)
Other versions
JPS56155741A (en
Inventor
Toshio Honda
Koji Kubo
Yukio Fukura
Tomio Ooyachi
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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP5916880A priority Critical patent/JPS56155741A/ja
Publication of JPS56155741A publication Critical patent/JPS56155741A/ja
Publication of JPS6330137B2 publication Critical patent/JPS6330137B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/3408Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3484Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being non-metallic
    • B29C65/3492Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being non-metallic being carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3484Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being non-metallic
    • B29C65/3496Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being non-metallic with a coating, e.g. a metallic or a carbon coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835Heat curing adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82Testing the joint
    • B29C65/8207Testing the joint by mechanical methods
    • B29C65/8223Peel tests
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73755General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized
    • B29C66/73756General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized the to-be-joined areas of both parts to be joined being fully cured
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B29C66/73941General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Description

【発明の詳細な説明】
本発明は加硫ゴムと加硫ゴムの導電架橋接着方
法に関する。 一般に加硫接着方法は、加硫ゴムと加硫ゴムの
間に熱架橋性ゴム組成物の中間層を介在させ、上
下の加硫ゴムから加熱を行ない、加硫ゴム層を伝
わつてきた熱により中間層の架橋を行なうと同時
に中間層と加硫ゴム層との接着を行なう方法であ
るが、この従来の方法は加熱する必要のない加硫
ゴム層を長時間加熱しなくてはならず、そのため
無駄な熱エネルギーを多く必要とし、又加硫ゴム
の加熱により加硫ゴム自体の熱劣化をまぬがれ得
ない等、経済性、物性上の面で欠点がある。又特
殊な加硫接着方法として、中間層未加硫ゴム層に
電熱用電線を埋設して、該電線に通電し加硫接着
する方法もある。しかしこの方法で得た加硫接着
ゴムは、発熱体が電線であるため不均質な発熱と
なり接着むらが生じ、又電線が入るためゴムと電
線との間に応力集中が生じやすく、耐久性、耐屈
曲性、くり返し疲労性等が悪くなる欠点を有して
いた。 本発明者等は、従来の加硫接着方法の上記欠点
を解決するため鋭意研究した結果、中間層だけを
均一に加熱することにより、中間層を加硫しかつ
中間層と上下の加硫ゴムとを接着せしめる方法を
見出し本発明を達成するに至つた。 すなわち本発明は、加硫ゴムと加硫ゴムの間に
導電性カーボンブラツクを配合してなる熱架橋性
ゴム組成物の中間層を介在させて、中間層に電圧
を印加し中間層の自己発熱により中間層の架橋と
同時に加硫ゴム同士を接着せしめることを特徴と
する導電架橋接着方法に係る。 以下に本発明を詳細に説明する。 中間層の熱架橋性ゴム組成物に配合する導電性
カーボンブラツクはケツチエンブラツクEC(オラ
ンダ,アクゾ社製品),Vulcan XC―72,
Vulcan SC,Vulcan C(いずれも米国、
CABOT社製,商品名)および旭HS―500(旭カ
ーボン社製,商品名)等の導電性フアーネスブラ
ツクであり、この中でもケツチエンブラツクEC
が好適に使用される。 導電性カーボンブラツクは熱架橋性ゴム組成物
の体積固有抵抗率が0〜200℃の温度範囲で104
Ω・cm以下になるような量を配合しなければなら
ない。体積固有抵抗率が104Ω・cmを越える場合
は架橋に必要な温度にまで昇温させるのに高電圧
を必要とするか、あるいは長時間を必要とするの
で不適当である。また体積固有抵抗率を104Ω・
cm以下にするためには導電性カーボンブラツクの
種類によつて多少の変化はあるが通常ゴム成分
100重量部に対して7重量部以上配合すればよい。
しかし体積固有抵抗率は低いほど架橋には有利で
あるが導電性カーボンブラツクの配合量が多すぎ
ると物性の低下が著しくなるのでゴム成分100重
量部に対して80重量部以下に抑える。 熱架橋性ゴム組成物のゴム成分としては天然ゴ
ム、ブタジエンゴム、イソプレンゴム、クロロプ
レンゴム等のジエン系ゴム、スチレン―ブタジエ
ンゴム、アクリロニトリル―ブタジエンゴム等の
ジエン系共重合ゴム、ブチルゴム、ハロゲン化ブ
チルゴム、エチレン―プロピレン系ゴム等のオレ
フイン系ゴムが好適に用いられ、他にアルキル・
シロキサン縮合物である有機ケイ素系ゴム、フツ
化ビニリデン―六フツ化プロピレン共重合物等の
フツ素系ゴム、アルキレン・スルフイド重合物等
の多硫化系ゴム、アクリル酸エステル重合物等の
ビニル系ゴム、ウレタンゴムが用いられる。これ
らのゴムは単独あるいは2種以上を組合せて用い
ることができる。 接着すべき加硫ゴムのゴム成分も熱架橋性ゴム
組成物のゴム成分として例示したものが同様に用
いられる。 中間層に用いられる熱架橋性ゴム組成物は、加
硫ゴムと加硫ゴムの間に中間層として介在させた
後、電圧を印加して架橋させ同時に加硫ゴム同士
を接着させるのであるが、この際の架橋方法とし
ては種々の方法を採用することができる。最も好
適に用いられるのは硫黄(必要に応じて加硫促進
剤を加える)加硫である。硫黄加硫以外の架橋剤
としてはp―キノンジオキシム、p,p′―ジベン
ゾイルキノンジオキシム、4,4′―ジチオジモル
ホリン、ポリ―p―ジニトロソベンゼン、安息香
酸アンモニウム等の通常の加硫に用いられる有機
加硫剤、ジクミルパーオキサイド、1,1―ビス
(t―ブチルパーオキシ)3,3,5―トリメチ
ルシクロヘキサン、α,α′―ビス(t―ブチルパ
ーオキシイソプロピル)ベンゼンなどの有機過酸
化物、メチロール化あるいは臭素化アルキルフエ
ノール樹脂などの樹脂架橋剤、トリエチレンテト
ラミン、ヘキサメチレンジアミンカルバメート等
の有機多価アミン、および酸化マグネシウム、酸
化鉛、ならびに酸化亜鉛等の金属酸化物などが好
適に使用される。もちろんこれ以外の公知の加硫
剤を使用することも可能である。 中間層の熱架橋性ゴム組成物には加硫促進助
剤、老化防止剤、補強剤、軟化剤、粘着付与剤等
通常のゴム配合剤を使用目的に応じて任意に添加
することができる。 次に本発明の導電架橋接着の手順を例示する。 第1図に示すように加硫ゴムAと加硫ゴムBと
の間に熱架橋性ゴム組成物の中間層Cを介在させ
加硫ゴム間を圧着させながら中間層の両端に取り
付けられた電極Dに交流あるいは直流電源Pから
電圧を印加する。 導電性架橋接着の際の印加電圧は中間層の体積
固有抵抗率、中間層の断面積、電極間の長さ、お
よび架橋に必要な温度等によつて定められるが、
実用的には1〜400ボルトの範囲が好ましい。架
橋に必要な温度は通常80〜200℃の範囲にあるが、
電圧印加後短時間で所望の温度に到達する。また
印加電圧を変えることにより架橋中の温度を任意
を変化させることが可能であり、中間層の形状、
架橋剤の性質等に応じた種々の反応制御が容易に
行なえる。 加硫ゴムはモールド面をそのまま接着面として
もよいが、接着力の向上を目的として酸等による
化学処理又はバフがけ等の機械的処理を行ないセ
メントを塗布することが好ましい。 上述のように本発明によれば、中間層の自己発
熱で架橋接着できるため上下層の加硫ゴムを加熱
する必要がなく、エネルギーコスト的に大きな利
益がある。又上下の加硫ゴムを加熱しないため上
下層の加硫ゴムの熱劣化を防ぐことができる。又
この中間層には電線や補強性のない導電性充填剤
を配合しないため、耐久性、耐屈曲性、くり返し
疲労性等がすぐれている。更に本発明の導電架橋
接着方法は、特に加硫ゴムが厚物の場合大きな効
果を有する。又加硫ゴムの熱劣化が最少限度にお
さえられるため、タイヤのリトレツドやベルトの
エンドレス接着等に応用可能である。 本発明を次の実施例および比較例につき説明す
る。 実施例 1〜5 第1表に示すように、導電性カーボンブラツク
(ケツチエンブラツクEC)の配合量の異なる硫黄
配合系中間層ゴム組成物から厚さ1mmから3mmの
未加硫の中間層用シートを得た。接着すべき加硫
ゴムAおよびBは天然ゴム(NR)100重量部に
カーボンブラツク(HAF)60重量部を配合した
硫黄加硫物であり接着面はバフがけ後n―ヘキサ
ン洗浄処理を施した。 中間層の体積固有抵抗率の測定はASTM
D991―60に従つて行つた。接着強度の評価はJIS
K6854に準拠したT形剥離試験で、試料幅25mm、
加硫ゴム厚さ2mm、引張速度200mm/minの条件
で実施した。剥離試験片は第2図に示すように加
硫ゴムAと加硫ゴムBの間に導電性中間層Cを介
在させ、中間層Cが流動しない程度に加圧し中間
層の温度が150℃となるように両端の電極Dに電
圧を印加し、所定の時間通電し架橋接着を行なつ
た。 結果を第1表に示す。
【表】
【表】 第1表から明らかなように、加硫ゴムAおよび
Bはこの条件で充分に架橋接着している。 比較例 1 HAFブラツクを35重量部配合し、導電性カー
ボンブラツクを5重量部配合した以外は実施例1
と同じ配合の中間層ゴム組成物をつくつた。この
中間層ゴム組成物の体積固有抵抗率は5×104
Ω・cmであつた。実施例1と同様の手順で、ただ
し中間層を厚さ3mm、幅100mm、電極間距離50mm
とし、初期印加電圧400Vで30分間通電したとき
の温度は55℃であり、加硫しなかつた。
【図面の簡単な説明】
第1図は本発明の加硫接着方法を示す断面模式
図、第2図はT形剥離試験片の作製方法を示す見
取図である。 A,B……加硫ゴム、C……中間層、D……電
極、P……電源。

Claims (1)

    【特許請求の範囲】
  1. 1 加硫ゴムと加硫ゴムの間に、導電性カーボン
    ブラツクとして導電性フアーネスブラツクをゴム
    成分100重量部に対して7〜80重量部配合してな
    る体積固有抵抗率が0〜200℃の温度範囲で104
    Ω・cm以下である熱架橋性ゴム組成物の中間層を
    介在させて、中間層に電圧を印加し、中間層の自
    己発熱により中間層の架橋と同時に加硫ゴム同士
    を接着せしめることを特徴とする加硫ゴムと加硫
    ゴムの導電架橋接着方法。
JP5916880A 1980-05-02 1980-05-02 Vulcanized rubber and electroconductive bridging bonding method for vulcanized rubber Granted JPS56155741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5916880A JPS56155741A (en) 1980-05-02 1980-05-02 Vulcanized rubber and electroconductive bridging bonding method for vulcanized rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5916880A JPS56155741A (en) 1980-05-02 1980-05-02 Vulcanized rubber and electroconductive bridging bonding method for vulcanized rubber

Publications (2)

Publication Number Publication Date
JPS56155741A JPS56155741A (en) 1981-12-02
JPS6330137B2 true JPS6330137B2 (ja) 1988-06-16

Family

ID=13105575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5916880A Granted JPS56155741A (en) 1980-05-02 1980-05-02 Vulcanized rubber and electroconductive bridging bonding method for vulcanized rubber

Country Status (1)

Country Link
JP (1) JPS56155741A (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62129324A (ja) * 1985-11-30 1987-06-11 Yokohama Rubber Co Ltd:The タイヤトレツド用ゴム組成物
JP5259332B2 (ja) * 2007-10-25 2013-08-07 東洋ゴム工業株式会社 空気入りタイヤ
JP5259337B2 (ja) * 2007-11-19 2013-08-07 東洋ゴム工業株式会社 空気入りタイヤ
EP3524654B1 (en) * 2018-02-08 2022-09-07 3M Innovative Properties Company Pressure-sensitive adhesive compositions for electronic bonding applications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142788A (en) * 1974-10-09 1976-04-12 Bridgestone Tire Co Ltd Karyugomuno setsuchakuhoho
JPS5546745Y2 (ja) * 1977-10-27 1980-11-01

Also Published As

Publication number Publication date
JPS56155741A (en) 1981-12-02

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