JPS5859014A - ポリオレフインパイプの接続方法 - Google Patents

ポリオレフインパイプの接続方法

Info

Publication number
JPS5859014A
JPS5859014A JP13490081A JP13490081A JPS5859014A JP S5859014 A JPS5859014 A JP S5859014A JP 13490081 A JP13490081 A JP 13490081A JP 13490081 A JP13490081 A JP 13490081A JP S5859014 A JPS5859014 A JP S5859014A
Authority
JP
Japan
Prior art keywords
water
pipes
polyolefin
pipe
gel fraction
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.)
Granted
Application number
JP13490081A
Other languages
English (en)
Other versions
JPS6153941B2 (ja
Inventor
Kiyoshi Nakakawara
中河原　清
Masaki Matsui
松井　正毅
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.)
Dainichi Nippon Cables Ltd
Original Assignee
Dainichi Nippon Cables Ltd
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 Dainichi Nippon Cables Ltd filed Critical Dainichi Nippon Cables Ltd
Priority to JP13490081A priority Critical patent/JPS5859014A/ja
Publication of JPS5859014A publication Critical patent/JPS5859014A/ja
Publication of JPS6153941B2 publication Critical patent/JPS6153941B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/041—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/022—Particular heating or welding methods not otherwise provided for
    • B29C65/026—Particular heating or welding methods not otherwise provided for making use of hot liquids, i.e. the liquid is in direct contact with the material to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4895—Solvent bonding, i.e. the surfaces of the parts to be joined being treated with solvents, swelling or softening agents, without adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General 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
    • B29C66/71—General 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General 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
    • B29C66/73—General 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
    • B29C66/737—General 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
    • B29C66/7375—General 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
    • B29C66/73753—General 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 partially cured, i.e. partially cross-linked, partially vulcanized
    • B29C66/73754—General 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 partially cured, i.e. partially cross-linked, partially vulcanized the to-be-joined areas of both parts to be joined being partially cured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 架橋ポリオレフィンからなるパイプは、架橋されていな
いポリオレフィンから々るパイプと比較して、酬熱性、
耐項境応力亀裂性などの点において優れていることから
、ガス管、水道管給湯管用として仰望視されている。
ところて、それらの用途に使用するためにはパイプ同士
の接続が実際上必要となるが、架橋ボリゴ〜チレンは熱
溶融しない、又はその程度が小さいので架橋ポリ乞しフ
インパイプＨ１架ｈ４されていないポリオレフィンパイ
プのように熱融着によっては強固に接続することがてき
ない、。
の低架橋の状態にある間に融着により接続し、次いて水
によりパイプをＳ成するポリオレフィンをゲル分率にし
て少くとも６０％に架橋させることにより、強固に接続
された架橋ポリエチレンパイプが得られる。
本発明において、パイプを構成する水架橋性ポリオレフ
ィンとしては、公知のもの、だとえｉｆ　（ａ）　ポリ
エチレン、ホリ７０ロピレ／、エチレン−酢酸ビニル共
重合体、（１））一般式ＲＲ’５ＩＹ２（Ｒは一価のオ
レフィン性不飽η１を含む炭化水素基又ハハイドロカー
ボンオギシ基、Ｙ　＋ｄ加水分解し得る有機基、Ｒ′は
基Ｒ又は基Ｙ）で表わされる化合物、（、）バーオキ勺
イＩ・などの遊離ランカル発生剤、及び（（１）ンラノ
ー／ｌ／縮合触媒とからな橋の状態にある間に行われる
が、６０％より大であると充分に融着せず、寸だ、融着
後の追架橋によってもパイプの強固な接続が達成されな
い。一方、本発明においては融着時におけるポリオレフ
ィンのゲル分率は可及的低い方が好１しく、而してゲル
分率５％未満のものであっても理論的には良好に本発明
が達成されると予想されるが、現実の問題として工場生
産された水架橋性ポリオレフィンは、水架橋工程に入る
前に、大気中の水分などによってすてに架橋が進んでお
り５％前後のゲル分率に達している。
本発明において接続されるパイプ同士は、融着によって
接続されるが、この場合の１融着」は、加熱による融着
のみならず、適当な有機溶媒、軟化剤、膨潤剤などによ
りパイプ被接続部表面及びその近傍のポリオレフィン分
子のモビリティを高めて接続界面でのポリオレフィン分
子の相互拡散にもとすき接続させ得る全ての接着の態様
を意味するものである。熱融着による場合は架橋されて
いないポリオレフィンパイプ番こつき行われている場合
と同様に加熱により溶融状態にもたらされたパイプ端面
同士を圧接すればよい。才だ、パイプを構成するベーヌ
ボリオレフィンと同種の、但しオリゴヤ−、ワックス状
などの低分子異物を溶媒として用いて必要に応じて加熱
を行い熱溶着させて接続させてもよい。
上記の接続において、接続されるパイプは全層にわたり
ゲル分率が５〜６０％である必要は必ずしもなく、接続
されるべきパイプの外側、内側、又はその中間において
全層厚のＶ２以上の厚み部分において上記ゲル分率であ
ればよい。
上記の接続作業のあと、パイプ本体及び接続る。たとえ
ばパイプに水、好ましくは５０〜１００℃の温水、熱水
を通すことにより達成させ得る。
なお、本発明において融着により接続された状態で、接
続部はすてに比較的高強度を有しているので、送水、給
湯を高水圧で行う場合は別として、５に９／ｃｍ２以下
程度の低水圧で行う場合は、送水、給湯などに実用しつ
つ水架橋を行わせてもよい。
以下、実施例、比較例により本発明を一層詳細に説明す
る。
し実施例１〜３、比較例１〕 密度０．９５５　Ｖ　、’ｃｍ３、Ｍ　丁０．５８９　
／　Ｉ　０分のポリエチレン１００部（重量部、以下同
様）、ビニルトリメトギシシラン２０部、ンクミルパー
オギンド０２部、ジブチル−錫−シラクレー１−０．０
５部とからなる水架橋し得るポリエチレン組成物を用い
−〔外径９１ｍｍ、肉厚ｌ（Ｊｉｍのパイプを製造し、
該パイプから切取った長さ３０ｃｍのパイプ片を各種の
水架橋条１’Ｆにて架橋させてポリエチレンのゲル分率
が５％（架橋処理なし、実施例１）、３０％（実施例２
）、５５％（実施例３）６５％（比較例１）とした。各
実施例、比較例て用いる２本のパイプ片の接続すべき端
面を２００°Ｃに加熱して溶融状態にもたらして充分に
圧接して接続し、このあと９０°Ｃの熱水中に投入して
２時間放置し水架橋させた。この水架橋後のパイプ構成
ポリエチレンのゲル分率、接続部の強度は、それぞれ、
８５％、５２　Ｋ９／　ｃｍ２（実施例１）、８５％、
５０Ｋｇ／口２（実施例２）ポリエチレンのゲル分率１
ｄＪｒｓ　０３００５ノ２６項に準する方法で測定し、
接続部の強度は次の方法て測定した。
接続部の強度テスＩ・・　パイプ内に満した水の圧力を
２０に９／ｃｍ２／分の速度で漸次上昇させパイプを破
裂させる。上記実施例、比較例ではいずれも接続部て破
裂したのでその破裂時における水圧をもって接続部の強
度とした。
〔実施例４〜６〕及びし比較例２〕 密度０．９１９７ｃｍ３、Ｍ　Ｉ　Ｏ，５ｊ７　、／　
１０分のポリプロピレンに３−トリメトキシンリルプロ
ピルアゾｌ−ホルメート３．０　部、　　ノキュミルパ
ーオヤザイ１０２部、ノーブチル−鍋−ジラウレ−１−
０，０５部とからなる水架橋し得るポリプロピレン組成
物を用いて、ポリプロピレンのケ１１／分率が５頭（実
施例４）、３０％（実施例５）５５％（実施例６）、６
５％（比較例２）とした点のみ、実施例１〜６及び比較
例１と異なる実施例４〜６及び比較例２を行なった。
この水架橋後のパイプ構成ポリプロピレンのゲル分率、
接続部の強度はそれぞれ、８１％、５７Ｋｇ／ｃｍ２（
実施例４）、８２％、５５−／Ｇ　（実施例５）、８１
係、５＋Ｋｐ／ｃｍ２（実施例６）、８４％、４　Ｋｙ
　／　ｃｍ　２（比較例２）であった。
〔実施例７〜９〕及び〔比較例６〕 にビニルトリメ１−キノンラフ２３部、シギュミルパー
オキザイド０２部、シープチル−賜−ジラウレ−１・０
０７部とからなる水架橋し得るエチレン−酢ビ共重合ポ
リマー組成物を用いて、エチレン−酢ビ共重合ポリマー
のゲル分率が５％（実施例７）、３０％（実施例８）、
５５％（実施例９）、６５％（比較例３）としだ点のみ
、実施例１〜３及び比較例１と異なる、実施例７〜９及
び比較例５を行なった。
この水架橋後のパイプ構成エチレン−酢ビ共重合ポリマ
ーのゲル分率、接続部の強度はそれぞれ７９％、５３に
９／Ｃ＋＋＋（実施例７）、７９％５１に９／ｃｍ（実
施例８）、８１％、４９に９／ｃｍ（実施例９）、８０
％、５Ｋｐ／ｃｍ（比較例３）てあった。
特許出願人 大日日本電線株式会社 代表者代表取締役　青山幸雄

Claims (1)

    【特許請求の範囲】
  1. である間に融着により接続し、次いて水により架橋し・
    てポリオレフィンのゲル分率を少くとも６０チに高める
    ことを特徴とするポリ副レフインパイプの接続方法。
JP13490081A 1981-08-27 1981-08-27 ポリオレフインパイプの接続方法 Granted JPS5859014A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13490081A JPS5859014A (ja) 1981-08-27 1981-08-27 ポリオレフインパイプの接続方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13490081A JPS5859014A (ja) 1981-08-27 1981-08-27 ポリオレフインパイプの接続方法

Publications (2)

Publication Number Publication Date
JPS5859014A true JPS5859014A (ja) 1983-04-07
JPS6153941B2 JPS6153941B2 (ja) 1986-11-20

Family

ID=15139141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13490081A Granted JPS5859014A (ja) 1981-08-27 1981-08-27 ポリオレフインパイプの接続方法

Country Status (1)

Country Link
JP (1) JPS5859014A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001083613A3 (en) * 2000-04-28 2002-02-28 Golan Plastic Products Weldable articles made of cross-linked polyolefins
JP2009107207A (ja) * 2007-10-30 2009-05-21 Maezawa Kyuso Industries Co Ltd ポリオレフィン樹脂を素材とする部材の融着方法
FR3001716A1 (fr) * 2013-02-07 2014-08-08 Illinois Tool Works Reservoir pour automobile en polymere reticule

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001083613A3 (en) * 2000-04-28 2002-02-28 Golan Plastic Products Weldable articles made of cross-linked polyolefins
JP2009107207A (ja) * 2007-10-30 2009-05-21 Maezawa Kyuso Industries Co Ltd ポリオレフィン樹脂を素材とする部材の融着方法
FR3001716A1 (fr) * 2013-02-07 2014-08-08 Illinois Tool Works Reservoir pour automobile en polymere reticule
WO2014124018A1 (en) 2013-02-07 2014-08-14 Illinois Tool Works Inc. Motor vehicle tank made of crosslinked polymer

Also Published As

Publication number Publication date
JPS6153941B2 (ja) 1986-11-20

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