JPH06170947A - Lining pipe material for reconditioning conduit - Google Patents
Lining pipe material for reconditioning conduitInfo
- Publication number
- JPH06170947A JPH06170947A JP4028918A JP2891892A JPH06170947A JP H06170947 A JPH06170947 A JP H06170947A JP 4028918 A JP4028918 A JP 4028918A JP 2891892 A JP2891892 A JP 2891892A JP H06170947 A JPH06170947 A JP H06170947A
- Authority
- JP
- Japan
- Prior art keywords
- lining pipe
- reconditioning
- conduit
- pipe material
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Moulding By Coating Moulds (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は管路更生用ライニングパ
イプ材料に関する。詳しくは既設管の内側にその管内径
と同等乃至小さな外径を有するプラスチックパイプを加
熱軟化させて挿入し、挿入後に内圧をかけて半径方向に
膨張させ、既設管路内面に密着させた後で冷却しライニ
ングさせる工法において使用されるプラスチックパイプ
材料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lining pipe material for pipeline rehabilitation. For details, insert a plastic pipe with an outer diameter equal to or smaller than the inner diameter of the existing pipe by heating and softening it, apply internal pressure to expand it in the radial direction after it is inserted, and then close the inner surface of the existing pipe. The present invention relates to a plastic pipe material used in a cooling and lining method.
【０００２】[0002]
【従来の技術】従来、既設管の補修に使用される管路更
生用ライニングパイプ材料としては、ポリノルボルネン
樹脂、ポリ塩化ビニール、ポリエチレン、ポリプロピレ
ン、ポリエチレン、ナイロン、テフロン、ＡＢＳなどの
熱可塑性樹脂が知られている。これらは、薄肉化するに
は引張り強さが不十分であり、また、長期間の使用には
残留歪が大きく耐クリープ性が不十分であった。さら
に、収縮率が大きいものは既設管内面との密着性が低下
したり、また、軸方向への縮みが生じたりして寸法安定
性が不良である等の問題があった。2. Description of the Related Art Conventionally, as a lining pipe material for pipeline rehabilitation used for repairing existing pipes, thermoplastic resins such as polynorbornene resin, polyvinyl chloride, polyethylene, polypropylene, polyethylene, nylon, Teflon and ABS are used. Are known. These had insufficient tensile strength for thinning, and had large residual strain and insufficient creep resistance for long-term use. Further, those having a large shrinkage rate have problems such as poor adhesion to the inner surface of the existing pipe and shrinkage in the axial direction, resulting in poor dimensional stability.
【０００３】[0003]
【発明が解決しようとする課題】本発明者らは引張り強
さが大きく、長期間使用しても残留歪が小さく、さらに
収縮率の小さい管路更生用ライニングパイプ材料を得る
べく鋭意研究の結果、熱可塑性樹脂を強化用繊維で補強
した繊維強化プラスチックを用いることにより上記問題
を解決できることを見出し、本発明を完成した。DISCLOSURE OF THE INVENTION The present inventors have earnestly studied to obtain a lining pipe material for pipe line rehabilitation, which has a large tensile strength, a small residual strain even after long-term use, and a small shrinkage rate. The inventors have found that the above problems can be solved by using a fiber reinforced plastic in which a thermoplastic resin is reinforced with reinforcing fibers, and have completed the present invention.
【０００４】[0004]
【課題を解決するための手段】かくして本発明によれ
ば、熱可塑性樹脂と強化用繊維とを含有する強化プラス
チックからなることを特徴とする管路更生用ライニング
パイプ材料が提供される。Thus, according to the present invention, there is provided a lining pipe material for pipeline rehabilitation, which is made of a reinforced plastic containing a thermoplastic resin and a reinforcing fiber.
【０００５】本発明において使用される熱可塑性樹脂は
特に限定されないが、たとえばポリ塩化ビニル、ポリエ
チレン、ポリプロピレン、ポリスチレン、ハイインパク
トポリスチレン、ＡＢＳ樹脂、ナイロン、熱可塑性ポリ
エステル、ポリノルボルネンなどが挙げられる。The thermoplastic resin used in the present invention is not particularly limited, and examples thereof include polyvinyl chloride, polyethylene, polypropylene, polystyrene, high impact polystyrene, ABS resin, nylon, thermoplastic polyester, polynorbornene and the like.
【０００６】本発明において使用される強化用繊維は特
に限定されないが、たとえばガラス繊維、炭素繊維、炭
化ケイ素繊維、チタン酸カリウム繊維などが挙げられ
る。The reinforcing fiber used in the present invention is not particularly limited, and examples thereof include glass fiber, carbon fiber, silicon carbide fiber and potassium titanate fiber.
【０００７】本発明において使用される熱可塑性樹脂と
強化用繊維との混合比率は、特に限定されないが、通常
は、熱可塑性樹脂／強化用繊維＝９８／２〜５０／５０
重量％であり、好ましくは９５／５〜７０／３０であ
る。強化用繊維の使用量が２重量％未満では、引張り強
さの向上が図れない。また、５０重量％を超えると加工
性が低下し、さらに脆性が大きくなり好ましくない。The mixing ratio of the thermoplastic resin and the reinforcing fiber used in the present invention is not particularly limited, but usually thermoplastic resin / reinforcing fiber = 98/2 to 50/50.
% By weight, preferably 95/5 to 70/30. If the amount of the reinforcing fiber used is less than 2% by weight, the tensile strength cannot be improved. Further, if it exceeds 50% by weight, workability is deteriorated and brittleness is further increased, which is not preferable.
【０００８】本発明における繊維強化プラスチックに
は、必要に応じて、他の添加剤を加えることができる。
具体的には加工助剤、充填剤、安定剤、滑剤、酸化防止
剤、紫外線吸収剤、着色剤などが挙げられる。また、シ
ランカップリング剤を併用することも可能である。Other additives can be added to the fiber-reinforced plastic of the present invention, if necessary.
Specific examples include processing aids, fillers, stabilizers, lubricants, antioxidants, ultraviolet absorbers, and colorants. It is also possible to use a silane coupling agent together.
【０００９】本発明において使用される熱可塑性樹脂お
よび強化用繊維は、通常はゴムまたは熱可塑性樹脂を混
合する際に使用されるロール、バンバリー、ニーダー等
の混合機により常法に従い混合し繊維強化プラスチック
とする。また押出機を用いることもできる。The thermoplastic resin and the reinforcing fiber used in the present invention are usually reinforced by mixing them in a conventional manner with a mixer such as a roll, Banbury, or kneader which is usually used for mixing rubber or thermoplastic resin. Use plastic. An extruder can also be used.
【００１０】本発明の管路更正用ライニングパイプ材料
は、通常の押出成型機により押出し成形して容易にライ
ニングパイプにすることができる。また、そのようにし
て成形されたライニングパイプは、従来使用されている
ものと比較して、引張り強さ、曲げ強度が向上し、ま
た、長期間の変形後の残留歪が減少して耐クリープ性が
改善される。さらに、線膨張係数の温度変化率が減少す
るため、押出し成形後の収縮率が低下し、ライニングパ
イプを施工する際の寸法安定性が改善される。The lining pipe material for line rehabilitation of the present invention can be easily extruded by a usual extruder to form a lining pipe. In addition, the lining pipe molded in this way has improved tensile strength and bending strength compared with those used conventionally, and the residual strain after deformation for a long period of time is also reduced, resulting in increased creep resistance. Sex is improved. Further, since the rate of change in linear expansion coefficient with temperature is reduced, the shrinkage rate after extrusion is reduced, and the dimensional stability when the lining pipe is constructed is improved.
【００１１】また、引張強さが向上したライニングパイ
プは、従来使用されているものより薄肉化することが可
能となり、ライニングパイプを成形するときの生産性を
向上することも出来る。また、ライニングパイプの生産
設備を小型化することができ、設備費の低減が図れる。
さらに薄肉化することによって、現場施工時の加熱冷却
時間の短縮が可能となり、施工費を低減することができ
る。Further, the lining pipe having an improved tensile strength can be made thinner than that conventionally used, and the productivity at the time of molding the lining pipe can be improved. Further, the production equipment of the lining pipe can be downsized, and the equipment cost can be reduced.
Further, by reducing the wall thickness, it is possible to shorten the heating / cooling time at the time of on-site construction and reduce the construction cost.
【００１２】[0012]
【実施例】以下に実施例を用いて本発明を具体的に説明
する。なお、実施例、比較例中の部および％は重量基準
である。EXAMPLES The present invention will be specifically described below with reference to examples. The parts and% in the examples and comparative examples are based on weight.
【００１３】（実施例１〜６、比較例１〜３）表１に示
す各種の熱可塑性樹脂１００部と各種の強化用繊維の各
使用量とを、１７０℃のロールで混合後、１７５℃で成
形し、ＪＩＳ Ｋ−７１１３およびＪＩＳ Ｋ−７２０
３に準じた試験片シートを作成して、各種試験を行なっ
た。結果を表１に示す。なお、曲げクリープ試験は、２
３℃、４０kg／cm2 荷重で６００時間曲げ試験後の残留
歪量を求めた。線膨張率の温度変化率は、ＡＳＴＭ Ｄ
６９６に従い、温度０〜１２０℃の範囲で測定した。使
用した熱可塑性樹脂は以下のとおりである。 ポリ塩化ビニル：日本ゼオン（株）製 ゼオン１０３
ＥＰ ポリエチレン ：東燃石油化学（株）製 高密度ポリ
エチレンＰ５０１２ ＡＢＳ樹脂 ：三菱レイヨン（株）ダイヤペットＡ
ＢＳ３００１ また、強化用繊維は以下のとおりである。 ガラス繊維 ：旭ファイバーグラス（株）製 ＣＳ
０３ＭＡ４９７ 炭素繊維 ：東邦レーヨン（株）製 ＨＴＡ−Ｃ
６−ＳＫＳ チタン酸カリ繊維（アミノシラン系カップリング剤処
理）(Examples 1 to 6 and Comparative Examples 1 to 3) 100 parts of various thermoplastic resins shown in Table 1 and respective amounts of various reinforcing fibers used were mixed with a 170 ° C. roll and then 175 ° C. Molded with JIS K-7113 and JIS K-720
The test piece sheet according to 3 was prepared and various tests were conducted. The results are shown in Table 1. The bending creep test is 2
The residual strain amount after a bending test for 600 hours at 3 ° C. and a load of 40 kg / cm 2 was determined. The rate of change of linear expansion coefficient with temperature is
According to 696, the temperature was measured in the range of 0 to 120 ° C. The thermoplastic resins used are as follows. Polyvinyl chloride: Zeon 103 manufactured by Nippon Zeon Co., Ltd.
EP polyethylene: Tonen Petrochemical Co., Ltd. high density polyethylene P5012 ABS resin: Mitsubishi Rayon Co., Ltd. Diapet A
BS3001 Further, the reinforcing fibers are as follows. Glass fiber: CS manufactured by Asahi Fiber Glass Co., Ltd.
03MA497 Carbon fiber: HTA-C manufactured by Toho Rayon Co., Ltd.
6-SKS Potassium titanate fiber (treated with aminosilane coupling agent)
【００１４】[0014]
【表１】 [Table 1]
【００１５】表１から、本発明における繊維強化プラス
チックは、引張り強さ、クリープが改善され、また、線
膨張率の温度変化率が減少し、良好な管路更生用ライニ
ング材料であることがわかる。It can be seen from Table 1 that the fiber-reinforced plastic of the present invention is a good lining material for rehabilitating pipes because it has improved tensile strength and creep, and the rate of linear expansion coefficient change with temperature is reduced. .
【００１６】[0016]
【発明の効果】かくして本発明によれば従来技術と比較
して、引張り強さ、クリープ性、寸法安定性などが改善
された管路更生用ライニングパイプ材料を得ることがで
きる。As described above, according to the present invention, it is possible to obtain a lining pipe material for pipeline rehabilitation which has improved tensile strength, creep property, dimensional stability and the like as compared with the prior art.
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 105:06 Ｂ２９Ｌ 23:22 4Ｆ (72)発明者 土屋 佳胤 神奈川県川崎市川崎区夜光一丁目２番１号 日本ゼオン株式会社研究開発センター内Continuation of the front page (51) Int.Cl. 5 Identification number Reference number within the agency FI Technical display location // B29K 105: 06 B29L 23:22 4F (72) Inventor Kayo Tsuchiya Yokou 1-chome, Kawasaki-ku, Kanagawa Prefecture 2-1 Japan Zeon Corporation Research and Development Center
Claims (1)
繊維強化プラスチックからなることを特徴とする管路更
生用ライニングパイプ材料。1. A lining pipe material for pipeline rehabilitation, which is made of a fiber reinforced plastic containing a thermoplastic resin and a reinforcing fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4028918A JPH06170947A (en) | 1992-01-20 | 1992-01-20 | Lining pipe material for reconditioning conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4028918A JPH06170947A (en) | 1992-01-20 | 1992-01-20 | Lining pipe material for reconditioning conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06170947A true JPH06170947A (en) | 1994-06-21 |
Family
ID=12261785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4028918A Pending JPH06170947A (en) | 1992-01-20 | 1992-01-20 | Lining pipe material for reconditioning conduit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06170947A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003073518A (en) * | 2001-09-06 | 2003-03-12 | Sekisui Chem Co Ltd | Vinyl chloride based resin composition for regenerated pipe and regenerated pipe |
| JP2003097768A (en) * | 2001-09-21 | 2003-04-03 | Sekisui Chem Co Ltd | Polyvinyl chloride base resin composition for reclamation pipe and reclamation pipe |
| WO2007094475A1 (en) * | 2006-02-14 | 2007-08-23 | Ajinomoto Co., Inc. | Fiber reinforced plastic product |
-
1992
- 1992-01-20 JP JP4028918A patent/JPH06170947A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003073518A (en) * | 2001-09-06 | 2003-03-12 | Sekisui Chem Co Ltd | Vinyl chloride based resin composition for regenerated pipe and regenerated pipe |
| JP4714385B2 (en) * | 2001-09-06 | 2011-06-29 | 積水化学工業株式会社 | Vinyl chloride resin rehabilitation pipe |
| JP2003097768A (en) * | 2001-09-21 | 2003-04-03 | Sekisui Chem Co Ltd | Polyvinyl chloride base resin composition for reclamation pipe and reclamation pipe |
| WO2007094475A1 (en) * | 2006-02-14 | 2007-08-23 | Ajinomoto Co., Inc. | Fiber reinforced plastic product |
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