JPS58209525A - Connection of polyolefin pipe - Google Patents

Connection of polyolefin pipe

Info

Publication number
JPS58209525A
JPS58209525A JP57093749A JP9374982A JPS58209525A JP S58209525 A JPS58209525 A JP S58209525A JP 57093749 A JP57093749 A JP 57093749A JP 9374982 A JP9374982 A JP 9374982A JP S58209525 A JPS58209525 A JP S58209525A
Authority
JP
Japan
Prior art keywords
adhesive
polyethylene
pipe
joint
polyolefin
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
JP57093749A
Other languages
Japanese (ja)
Other versions
JPS622975B2 (en
Inventor
Chiaki Momose
百瀬　千秋
Kiyoshi Nakakawara
中河原　清
Kazunori Terasaki
寺崎　和憲
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 JP57093749A priority Critical patent/JPS58209525A/en
Priority to NO824291A priority patent/NO824291L/en
Priority to DE8282111901T priority patent/DE3266251D1/en
Priority to EP82111901A priority patent/EP0083780B1/en
Priority to FI824417A priority patent/FI73718C/en
Priority to AT82111901T priority patent/ATE15494T1/en
Priority to NZ202887A priority patent/NZ202887A/en
Priority to CA000418389A priority patent/CA1215528A/en
Priority to KR8205803A priority patent/KR890002644B1/en
Priority to DK576382A priority patent/DK576382A/en
Priority to TR21644A priority patent/TR21644A/en
Publication of JPS58209525A publication Critical patent/JPS58209525A/en
Priority to US06/781,318 priority patent/US4726869A/en
Publication of JPS622975B2 publication Critical patent/JPS622975B2/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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C65/4805—Joining 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
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/484—Moisture curing 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C66/50—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
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/73755—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 fully cured, i.e. fully cross-linked, fully vulcanized
    • B29C66/73756—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 fully cured, i.e. fully cross-linked, fully vulcanized the to-be-joined areas of both parts to be joined being fully cured
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring 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
    • B29C66/9192—Measuring 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 in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring 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 in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring 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 in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • B29C66/91933—Measuring 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 in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined higher than said fusion temperature
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining 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
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To permit the connection having a high connecting strength and a high connecting stability by a method whrein the pipe and a coupling therefor are connected after the connecting surfaces thereof are heated to a specified temperature or higher and, thereafter, an adhesive is coated on the surfaces in case they are connected by utilizing polyethylene siries adhesives. CONSTITUTION:In case the pipe of polyolefin and the coupling of synthetic resin are connected by utilizing the adhesive of polyethylene series, the connecting surfaces of the pipe and the coupling are heated to a temperature 50 deg.C higher than the melting point of the adhesive and the adhesive is coated thereon to connect them. When the pipe and the coupling are formed by a water crosslinkable polyolefin, the adhesive of polyethylene series is preferable to be made of the water crosslinkable polyethylene.

Description

【発明の詳細な説明】 本発明は、ポリオレアインパイプと合成樹脂製継手との
ポリエチレン系接着剤を用いる接合をきわめて安定に行
なうことができるように、接合前にパイプおよび継手を
加熱処理することを特徴とする接合法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention heat-treats the pipe and the joint before joining so that the polyolea-in pipe and the synthetic resin joint can be extremely stably joined using a polyethylene adhesive. The present invention relates to a joining method characterized by the following.

ポリエチレン系接着剤を用いるポリオレフィンパイプと
合成１ｉ！Ｍｋｉ被継手との接合においては、パイプお
よび継手の接合部表面の一方または両方に［融したポリ
エチレン系接着剤が存在する伏線にもたらし、パイプを
継手に挿入する方法がとられているが、野外などの現場
での作業が多いことから手早く能率よく作業をしなけれ
ばならず、したがって従来、挿入直前における接着剤お
よび繭紀バイープと継手の接合部表面の温度は、接着剤
の融点よりわずかに高い程度の温度にもたらされるにす
ぎない。Polyolefin pipe and synthesis using polyethylene adhesive 1i! When joining Mki joints, the method used is to bring melted polyethylene adhesive to one or both surfaces of the joint between the pipe and the joint, and then insert the pipe into the joint. Since there is a lot of work to be done on-site, such as work, it is necessary to work quickly and efficiently. Therefore, conventionally, the temperature of the adhesive and the surface of the joint between the Cocoon Vipe and the joint just before insertion is slightly lower than the melting point of the adhesive. It is only brought to a high degree of temperature.

しかしながら、この方法では接合ｕｒｔの接着剤とポリ
オレフィンパイプおよび合成樹脂製ｍ４−との接着状態
がわるく、このためｍｓ’ｉｉ屓の安定性が充分でない
。However, in this method, the adhesion between the adhesive of the joint urt and the polyolefin pipe and the synthetic resin m4- is poor, and therefore the stability of the ms'ii layer is not sufficient.

本発明者らは種々研究を重ねた結果・接合−６にポリオ
レフィンパイプおよび合成樹脂製継手の被着界面をある
温度以上に加熱するかしないかにより、接合の安定性お
よび接合強度に大きな１會を及番よすことか見出され、
それに基づき本発明を完成した。As a result of various studies, the present inventors have found that the stability and strength of the joint can be greatly affected by whether or not the adhering interface of the polyolefin pipe and synthetic resin joint is heated above a certain temperature in joining-6. It was discovered that it was the right thing to do,
Based on this, the present invention was completed.

すなわち本発明の接合法は１ポリオレフインることを特
徴とするものである。That is, the bonding method of the present invention is characterized in that one polyolefin is used.

本発明における加熱処理は、パイプと継手との接合前で
あれば接着剤の塗布の前後を問わない。すなわち為接合
前に少なくとも接層剤と被層材との界面および接着剤が
前記の一度に達していればよい。The heat treatment in the present invention may be performed before or after the adhesive is applied, as long as it is before the pipe and the joint are joined together. That is, it is sufficient that the interface between the layering agent and the layered material and the adhesive reach at least the above-mentioned level before bonding.

加熱温度は使用するポリエチレン系従看剤σｊ主成分で
あるポリエチレンの融点（ｔｌ）プラス５０°ａ以上で
ある。好ましい加熱温度は、該融点（ｔｌ）より７０〜
１３０°Ｏ高い温度である。加熱湿度か（ｔｘ＋５０）
’Ｃ未膚のときは所韻の接合の安定性や強度かえられず
、好ましくない。接合前における前記一度での加熱保持
時間は数秒ないし鈑を秒で充分であるが、それ以上時間
なかけてもよい。The heating temperature is higher than the melting point (tl) of polyethylene, which is the main component of the polyethylene-based additive σj used, plus 50°a. The preferred heating temperature is 70 to
The temperature is 130°O higher. Heating humidity (tx+50)
When 'C' is not bonded, the stability and strength of the bond cannot be changed, which is not preferable. It is sufficient for the heating time to be held at one time before bonding to be several seconds or seconds, but it may be longer.

なお・本明細書におけるポリエチレン系接着剤の主成分
であるポリエチレンの融点（ｔｌ）は・Ｆ高分子分析ハ
ンドブック」神原編（昭和４０年）、朝烏書店の５．１
５．１節に記載されている一方法に準じて示差熱分析を
行ない、えられた融解ピークの温度のことをいう。・The melting point (tl) of polyethylene, which is the main component of the polyethylene adhesive in this specification, is ・F Polymer Analysis Handbook, edited by Kanbara (1966), 5.1, published by Asarasu Shoten.
It refers to the temperature of the melting peak obtained by performing differential thermal analysis according to one of the methods described in Section 5.1.

被層材の加熱はいかなる手段によって行なつ−Ｃもよい
が、野外でパイプを接合するばあい、熱板、バーナ、ト
ーチプンプなどの加熱手段により行なえばよい。The coating material may be heated by any means, but in the case of joining pipes outdoors, it may be heated by a heating means such as a hot plate, a burner, or a torch pump.

本発明の方法により接合されうるポリオレフィンパイプ
の材質としては、架橋剤の、あるいは架橋しない、もし
く＆Ｊ経時架橋型のポリオレフィン１ｍかあげられ、そ
れらのいすｔ′Ｌも使用でき、ポリオレフィン樹脂とし
てはたとえ＆マ°ホ。As the material of the polyolefin pipe that can be joined by the method of the present invention, 1 m of polyolefin with a crosslinking agent, without crosslinking, or &J time-crosslinking type can be used. Analogue & Maho.

リエチレン、ポリプロピレン、エチレン−プロピレン共
重合体、エチレン−酢−ビニル共重合体、エチレン−了
クリレート共重合体、ポリブテン−１などがあげられる
。それらのうち架−ポリオレアイン樹脂と経時架４１型
ポリオレフィン樹脂が好ましく、とくに水で架橋する水
ＩＪ！倫性の経時架楡型のポリオレフィン樹脂が好ま【
、。Examples include polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-acetate-vinyl copolymer, ethylene-acrylate copolymer, and polybutene-1. Among these, cross-linked polyolein resins and time-crosslinked 41 type polyolefin resins are preferred, especially Water IJ! which crosslinks with water! Preferable polyolefin resin that can be cross-linked over time.
,.

い。水架橋型のポリオレアイン樹脂として＆ま・前記ポ
リオレフィンをビニルトリメトキシシランなどの有機シ
ラン化合物およびジクミルノく一オキサイドなどの有機
過酸化物を用いてシランをグラフトしたものがあげられ
る。有機シラン化合物や有機過酸化物、えられるシラン
グラフトポリオレフィンとしては、たとえば特開昭５０
−１２６７８９号公報、特公昭５０−５５９４０号公報
に記載されているものがあげられる。さらにｎＩＪ　ｔ
ｘ！、　４ｉ機シラン化合物とａ−オレフィンとを共嵐
合し、主鎖にシラン基を導入したポリオレフィンも）Ｉ
ｊいることができ、かかる共重合体の例としては特開昭
５６−８８４４６号公報に記載されているものがあげら
れる。stomach. Water-crosslinkable polyolein resins include those obtained by grafting silane onto the polyolefin described above using an organic silane compound such as vinyltrimethoxysilane and an organic peroxide such as dicumyl oxide. Organic silane compounds, organic peroxides, and silane-grafted polyolefins that can be obtained include, for example,
Examples include those described in Japanese Patent Publication No. 126789 and Japanese Patent Publication No. 50-55940. Further nIJ t
x! , A polyolefin in which a silane compound and an a-olefin are co-articulated and a silane group is introduced into the main chain)
Examples of such copolymers include those described in JP-A-56-88446.

合成樹脂製継手の材質としてはポリオレフィンパイプに
用いるものと同じものが好ましいが、それらに限られる
ものではなく、ポリ塩化ビニルやポリエステルなどの他
の合成樹脂やゴムなどを用いてもよい。The material of the synthetic resin joint is preferably the same as that used for polyolefin pipes, but is not limited to these, and other synthetic resins such as polyvinyl chloride and polyester, rubber, etc. may also be used.

本発明の方法で用いるポリエチレン系接着剤としては・
主成分として非架橋または架橋型のポリエチレンをその
ままあるいは他の成分と混合して、固形状や粉末状、フ
ィルム状または沼液状、ペースト状、乳化状、懸濁状に
したものか用いられる。架橋型ポリエチレンとしては、
ｌｌ１１記した水架４１１ｍボリエナレンおよびジアル
キル糸パーオキサイドやパーオキシ酸、パーオキシ酸エ
ステルなどの架橋剤を混合した熱架橋型ポリエチレンが
あげられる。なお、熱架橋型ポリエチレンを用いるばあ
い、前記加熱処理ｉキー直ちに接合作業を行なう必要が
ある。そうした点・および作業能率がよく、均一に殖布
することができる点からみて、水によって縫慢に架橋が
進行する。水架橋型ポリエチレンのペースト状のものが
好ましい。The polyethylene adhesive used in the method of the present invention is:
As the main component, non-crosslinked or crosslinked polyethylene is used as it is or mixed with other components in the form of a solid, powder, film, liquid, paste, emulsion, or suspension. As cross-linked polyethylene,
Examples include thermally crosslinked polyethylene prepared by mixing the water bridge 411m polyenalene described in 111 with a crosslinking agent such as dialkyl thread peroxide, peroxy acid, and peroxy acid ester. Note that when thermally crosslinked polyethylene is used, it is necessary to perform the bonding operation immediately after the heat treatment. From this point of view, as well as the fact that it has good work efficiency and can be spread uniformly, crosslinking progresses slowly with water. A water-crosslinked polyethylene paste is preferred.

本発明の方法によるときにはポリオレフィンパイプと合
成Ｗ脂継手との接合強度が向上し、かつ作業の安定性が
向上する。このことは、本発明における加熱処理を施し
たものでは、ホ゛リエチレン糸桜着剤と被着剤とがその
界面においてよくなじむからであると考えられる。When the method of the present invention is used, the joint strength between the polyolefin pipe and the synthetic W fat joint is improved, and the stability of the work is improved. This is thought to be because, in the case of the heat-treated material according to the present invention, the polyethylene thread adhesive and the adhesive blend well at the interface.

つぎに実施例をあげて本発明の詳細な説明する。Next, the present invention will be explained in detail with reference to Examples.

実施例１ ポリオレフィンパイプとして密度０−９５ｐ７’ｃｍ３
、融点１２８°０の水架橋型ポリエチレンからなる外径
６０ａ＋ｍ、肉厚４．５ｍｍのパイプを用い、合成倫脂
製継手として融点１６０°０１ｍ度０．９５９１０ｍ３
の水架橋型ポリエチレンからなる内径６０ｍｍ　、肉厚
５ｍｍの継手を用いた。Example 1 Density 0-95p7'cm3 as polyolefin pipe
A pipe made of water-crosslinked polyethylene with a melting point of 128°0 and an outer diameter of 60a+m and a wall thickness of 4.5mm is used as a joint made of synthetic resin.
A joint made of water-crosslinked polyethylene with an inner diameter of 60 mm and a wall thickness of 5 mm was used.

ポリエチレン系接着剤としては一％奮度０．９２ｇ。0.92g of 1% polyethylene adhesive.

ｃｍ　　、　メルトインデックス２．５ｇ／１０分およ
び融点１２０°０のリニアホ゛リエチレン１００部（憲
一部、以下同様）とビニルトリメトキシシラン２．０ｉ
とジクミルパーオキサイド０．１部とを混合、混練し・
グラフト血合を行なってえられたシラングラ７トホリエ
チレン（一点１２０’Ｏ）を５倍容のキシレンに溶解し
てえられた水架ａｍポリエチレン糸ｌｉ！層剤を用いた
。cm, 100 parts of linear polyethylene with a melt index of 2.5 g/10 minutes and a melting point of 120°0 (Kenpart, hereinafter the same) and 2.0 parts of vinyltrimethoxysilane.
and 0.1 part of dicumyl peroxide are mixed and kneaded.
Water bridge am polyethylene yarn li obtained by dissolving Silangura 7 topolyethylene (120'O per point) obtained by grafting in 5 times the volume of xylene! A layering agent was used.

加熱処理および接合は接合部分をウェスで清拭したのち
、パイプおよび継手をそれぞれ加熱するための雄型部お
よび雄型部を有する熱板を２５０’ｌｌに加熱し、この
熱板にパイプおよびｍ手を挿入し・２〜６秒間保持した
のち引き抜き、直ちにあらかじめ約１６５６０に加熱流
動化しであるＩＪＵ記ポリエチエチ糸接着剤を接合部に
塗布し、ついでパイプと継手を接合した。接着剤中のキ
シしンは前記塗布ＴｆＬ後にその大部分が挿敗し、また
接合［ＷＪにおけるポリエチレン系接着剤は１８０　ｏ
Ｃｊに達していた。For heat treatment and joining, after wiping the joint part with a rag, a hot plate having a male part and a male part for heating the pipe and the fitting, respectively, is heated to 250'll, and the pipe and m After inserting a hand and holding it for 2 to 6 seconds, it was pulled out, and immediately an IJU polyethylene thread adhesive, which had been heated and fluidized to about 16,560, was applied to the joint, and then the pipe and the joint were joined. Most of the xylene in the adhesive is inserted or broken after the application TfL, and the polyethylene adhesive in WJ is 180 o
It had reached Cj.

えられた接合物について、ａｏ’ａ、６ｚ圧の湿水をパ
イプ内に満して１７０時間保持し・接合部からの水漏れ
の有無を調べたところ、四らの異常もなく、また割れな
どの他の欠陥も生じていなかった。Regarding the resulting joint, we filled the pipe with wet water at ao'a, 6z pressure and held it for 170 hours, and when we checked for water leakage from the joint, there were no abnormalities, and no cracks were found. No other defects occurred.

さらに９本の同様のバ２イブ、継手および依虐剤を用い
て同様の接合を行ない、別記と同様の水漏試験を行なっ
たところ、すべての接合物について異常がなく、接合は
１００％成功していた。Furthermore, when similar connections were made using nine similar vibes, joints, and addictive agents, and a water leakage test was conducted in the same way as described in the separate article, there were no abnormalities in all the bonded items, and the bonding was 100% successful. Was.

比較例１ 熱板の湿度を１５０°Ｃにしたほかは実施例１と同様に
して１０本のパイプを継手と接合し、それぞれにつき実
施例１と同様の水漏試験を行な一〕たところ、６本につ
いて１時間６０分褒に接合部から漏れが生じ、成功率は
４０％であった。Comparative Example 1 Ten pipes were joined with joints in the same manner as in Example 1, except that the humidity of the hot plate was set to 150°C, and the same water leakage test as in Example 1 was conducted on each pipe. After 1 hour and 60 minutes, leakage occurred from the joints for 6 of them, and the success rate was 40%.

実施例２ 実施例１のパイプおよび皺十を清拭したのら実施例１と
同じポリエチレン系接着剤を接合部に常湿で塗布し、イ
れらを、２，４０’Ｏに加熱した熱板に２〜３ｔ１１間
揮大したのち引き抜き、直ちに接合した。同様にして接
合物を１０本作製した、。Example 2 After wiping the pipe and wrinkles of Example 1, the same polyethylene adhesive as in Example 1 was applied to the joints at normal humidity, and the pipes were heated to 2,40'O. After volatilizing on the plate for 2 to 3t11, it was pulled out and immediately joined. Ten bonded products were produced in the same manner.

えられた１０本の接合物について実施例１と同様の水漏
試験を行なったところ、すべてのものについて異常は生
じず、成功率は１００％であった。When a water leakage test similar to that in Example 1 was conducted on the 10 obtained joints, no abnormality occurred in any of them, and the success rate was 100%.

実施４Ｓ１５ ポリオレフィンパイプとして架橋ポリプロピレンからな
る外径６Ｑｍｍ、肉厚４．５ｍｍのパイプを用いたはか
は実施例１と同様にパイプと継手を接合して１０本の接
合物を作製した。Implementation 4S15 A pipe made of cross-linked polypropylene with an outer diameter of 6 Q mm and a wall thickness of 4.5 mm was used as the polyolefin pipe, and the pipe and the joint were joined in the same manner as in Example 1 to produce 10 joined products.

えられた１０本の接合物について実施例１と同様の水漏
試験を行なったところ、すべてのものについて與當は生
じず、成功率は１００％であった。When a water leakage test similar to that in Example 1 was conducted on the 10 joints obtained, no cracks occurred in any of them, and the success rate was 100%.

実施例４ ポリエチレン系接着剤として実施例１で用いたシラング
ラ７トポリエチレン（−Ａ１２０’Ｏ）を８＠容のデカ
リンに溶解した接着剤を用い、熱板の！！度を２６００
０としたけがは実施例１と同様にパイプと継手を接合し
て１０本の接合物を作製した。Example 4 Using an adhesive prepared by dissolving Silangura 7 topolyethylene (-A120'O) used in Example 1 in 8 volumes of decalin as a polyethylene adhesive, a hot plate adhesive was used. ! degree 2600
As for the injury, 10 joints were prepared by joining pipes and joints in the same manner as in Example 1.

えられた１０本の接合物について実Ｉｈ例１と同様の水
漏試験を行なったところ、すべてのものについて集常は
生じず、成功率は１００％であった、。When a water leakage test similar to that in Practical Ih Example 1 was conducted on the 10 joints obtained, no clustering occurred in any of them, and the success rate was 100%.

比較例２ 熱板の温度を１５０８０にしたほかは実施＠４と同様に
バイブと継手を接合して１０本の接合物を作製した。Comparative Example 2 A vibrator and a joint were joined together in the same manner as in Example @4, except that the temperature of the hot plate was set to 15080° C., to produce 10 joined products.

えられた１０本の接合物について実施例１と同様の水漏
試験を行なったところ、８本か２５分後に接合部で漏れ
が生じた。成功率は２０％であった。When a water leakage test similar to that in Example 1 was conducted on the 10 joints obtained, leakage occurred at the joints after 25 minutes for 8 joints. The success rate was 20%.

実施例５ 常温でポリエチレン系接着剤を波布し、ついで２４０°
Ｃの熱板で加熱処理し１再度級層剤を鑑布したほかは実
施例１と同様にして１０本のり合物を作製した。Example 5 Corrugated polyethylene adhesive at room temperature, then 240°
Ten composites were prepared in the same manner as in Example 1, except that they were heat treated with a No. C hot plate and coated with a grading agent once again.

えられた１０本の接合物について実施＠１と同様の水漏
試験を行なったところ、すべてのものについて異常は生
じず、成功率は１００％であった〇実施例６ 合成樹脂製継手としてポリプロピレン製の継手を用いた
はかは実施例１と同様にバイブと和平を接合して１０本
の接合物を作製した。A water leakage test similar to that in Test @ 1 was conducted on the 10 joints obtained, and no abnormalities occurred in any of them, and the success rate was 100%. Example 6 Polypropylene was used as a synthetic resin joint. A vibrator and a peace were joined together in the same manner as in Example 1, using a joint manufactured by the company, to produce 10 joined products.

えられた１０本の接合物について実施例１と同様の水漏
試験を行なったところ、すべてのものに異常は生じず、
成功率は１００％であった。A water leakage test similar to that in Example 1 was conducted on the 10 joints obtained, and no abnormality occurred in any of them.
The success rate was 100%.

実施例７ 合成樹脂製継手としてポリプデンー１製の継手を用いた
ほかは実施例１と同様にバイブと継手を接合して１０本
の接合物を作製した。Example 7 A vibrator and a joint were joined together in the same manner as in Example 1, except that a joint made of Polypdenum 1 was used as the synthetic resin joint to produce 10 joints.

えられた１０本の接合物について実＆Ｎ１と同様の水漏
試験を行なったところ、すべてのものにｉ４常は生じず
、成功率は１００％であった。When a water leakage test similar to the actual & N1 was conducted on the 10 joints obtained, no i4 problems occurred in any of them, and the success rate was 100%.

特許出願人　　　大日日本電線株式会社代理人弁理士　
　朝　日　奈　祭　太Patent applicant: Dainichi Nippon Cable Co., Ltd. Patent attorney
Asahi Na Matsuri Futoshi

Claims (1)

【特許請求の範囲】 １　ポリオレフィンパイプと合成ｍ１ｆｆｉ＄ｉ！継手
とをポリエチレン系接着剤を用いて接合するにあたり、
ポリオレフィンパイプおよび合成樹脂製継手の被層界面
を接合前に少なくとも（ｔ１＋５０　）　’０　（ただ
し、ｔｌは該接着剤の主成分であるポリエチレンの融点
である）の温度に加熱保持することを特徴とするポリオ
レフィンパイプの接合法。 ２　ポリオレフィンパイプが水架橋副ポリオレフィンパ
イプであり、かつ合成ｗｍ製継手が水架ＩＩＩｇ型ポリ
オレフィン製の継手である特許請求の範囲第１項記載の
接合法。 ６　ポリエチレン系接着剤が水架橋をポリエチレンを特
徴とする特ＩＩｆＭ求の範囲第１項記載の接合法。[Claims] 1. Polyolefin pipe and synthetic m1ffi$i! When joining the joints using polyethylene adhesive,
The coating interface of the polyolefin pipe and the synthetic resin joint is heated and maintained at a temperature of at least (t1+50)'0 (where tl is the melting point of polyethylene, which is the main component of the adhesive) before joining. A method for joining polyolefin pipes. 2. The joining method according to claim 1, wherein the polyolefin pipe is a water-bridged secondary polyolefin pipe, and the synthetic wm joint is a joint made of water-bridged type IIIg polyolefin. 6. The joining method according to item 1, wherein the polyethylene adhesive is water-crosslinked polyethylene.
JP57093749A 1981-12-29 1982-05-31 Connection of polyolefin pipe Granted JPS58209525A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
JP57093749A JPS58209525A (en) 1982-05-31 1982-05-31 Connection of polyolefin pipe
NO824291A NO824291L (en) 1981-12-29 1982-12-20 ADHESIVE AND PROCEDURE FOR COMPOUNDING POLYOLEFINE OBJECTS BY USING THEREOF
CA000418389A CA1215528A (en) 1981-12-29 1982-12-22 Adhesive and method of jointing articles of polyolefin using the same
EP82111901A EP0083780B1 (en) 1981-12-29 1982-12-22 Adhesive and method of jointing articles of polyolefin using the same
FI824417A FI73718C (en) 1981-12-29 1982-12-22 FOERFARANDE FOER SAMMANFOGNING AV POLYOLEFINPRODUKTER.
AT82111901T ATE15494T1 (en) 1981-12-29 1982-12-22 ADHESIVES AND METHOD FOR BONDING POLYOLEFIN OBJECTS.
NZ202887A NZ202887A (en) 1981-12-29 1982-12-22 Polyolefin adhesive
DE8282111901T DE3266251D1 (en) 1981-12-29 1982-12-22 Adhesive and method of jointing articles of polyolefin using the same
KR8205803A KR890002644B1 (en) 1981-12-29 1982-12-24 Method of jointing articles of polyolefin
DK576382A DK576382A (en) 1981-12-29 1982-12-28 ADHESIVE AND PROCEDURE FOR JOINING POLYOLEFING STANDS USING THIS ADHESIVE
TR21644A TR21644A (en) 1981-12-29 1982-12-29 METHOD OF ADHESIVE SUBSTANCE AND SOES SUBJECT MATERIALS THAT CONNECT PRODUCTS FROM POLYOLEF BY USING BOEYLE ADHESIVE MATERIAL
US06/781,318 US4726869A (en) 1981-12-29 1985-09-30 Adhesive and method of jointing articles of polyolefin using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57093749A JPS58209525A (en) 1982-05-31 1982-05-31 Connection of polyolefin pipe

Publications (2)

Publication Number Publication Date
JPS58209525A true JPS58209525A (en) 1983-12-06
JPS622975B2 JPS622975B2 (en) 1987-01-22

Family

ID=14091067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57093749A Granted JPS58209525A (en) 1981-12-29 1982-05-31 Connection of polyolefin pipe

Country Status (1)

Country Link
JP (1) JPS58209525A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5276379A (en) * 1975-12-22 1977-06-27 Dainippon Ink & Chemicals Method of welding of formed product of thermoplastic resin with molten filamemt and tool for welding of filament
JPS52130872A (en) * 1976-04-27 1977-11-02 Neopane Kk Method of jointing of poyethylene * polypropylene pipes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5276379A (en) * 1975-12-22 1977-06-27 Dainippon Ink & Chemicals Method of welding of formed product of thermoplastic resin with molten filamemt and tool for welding of filament
JPS52130872A (en) * 1976-04-27 1977-11-02 Neopane Kk Method of jointing of poyethylene * polypropylene pipes

Also Published As

Publication number Publication date
JPS622975B2 (en) 1987-01-22

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