DE19748631A1 - Safety seal for liquid systems using swellable polymers - Google Patents

Safety seal for liquid systems using swellable polymers

Info

Publication number
DE19748631A1
DE19748631A1 DE1997148631 DE19748631A DE19748631A1 DE 19748631 A1 DE19748631 A1 DE 19748631A1 DE 1997148631 DE1997148631 DE 1997148631 DE 19748631 A DE19748631 A DE 19748631A DE 19748631 A1 DE19748631 A1 DE 19748631A1
Authority
DE
Germany
Prior art keywords
seal
systems
polymer
swellable polymers
liquids
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.)
Withdrawn
Application number
DE1997148631
Other languages
German (de)
Inventor
Hans-Juergen Dipl Ing Gros
Holger Dipl Ing Wack
Wilhelm Dr Ing Althaus
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to DE1997148631 priority Critical patent/DE19748631A1/en
Priority to PCT/EP1998/007030 priority patent/WO1999023401A1/en
Priority to AU15600/99A priority patent/AU1560099A/en
Publication of DE19748631A1 publication Critical patent/DE19748631A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/004—Sealing liners
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/008—Sealings comprising at least two sealings in succession with provision to put out of action at least one sealing; One sealing sealing only on standstill; Emergency or servicing sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Mining & Mineral Resources (AREA)
  • Water Supply & Treatment (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

The invention relates to a seal in order to prevent the exit or entry of liquids out of or into systems and the application thereof. According to the inventive solution, a seal should be provided which prevents liquids from exiting a system or from being able to enter such a system with a high certainty and over a long period of time. To this end, a nonbiodegradable polymer which is capable of swelling by imbibition or at least two components which reactively form such a polymer are accommodated in a space which separates both systems from one another. The invention can be favorably utilized in order to seal pipes or to seal waste disposal sites.

Description

1 Technische Anwendung1 Technical application

Die Erfindung betrifft die dauerhafte Abdichtung von flüssigkeitsführenden oder -beinhaltenden Systemen.The invention relates to the permanent sealing of liquid-carrying or -including systems.

2 Stand der Technik2 State of the art

Superabsorber werden bislang als absorbierende Einsatzstoffe in Einwegwindeln, in der Lebensmittelindustrie, als Bodenzuschlagsstoffe und als Dichtmittel gegen das Eindringen von Wasser in Kabel verwendet.So far, superabsorbents have been used as absorbent materials in disposable diapers the food industry, as soil additives and as a sealant against that Water penetration used in cables.

Darüber hinaus ist der Einsatz von quellfähigen Medien, z. B. Bentoniten, in der De­ ponietechnik als zusätzlicher Schutzmechanismus vor dem Austritt von Sickerwasser bekannt.In addition, the use of swellable media such. B. bentonites, in the De Ponie technology as an additional protection mechanism against the leakage of leachate known.

Der vorwiegende Einsatz stark quellender Medien liegt in der Aufnahme bzw. dem Speichern von Flüssigkeiten, oder in der Verhinderung des Eintretens einer Flüssigkeit in ein System (Kabelabdichtung).The predominant use of strongly swelling media lies in the recording or the Storage of liquids, or in the prevention of the entry of a liquid into one system (cable seal).

3 Mit der Erfindung gelöste Aufgaben3 Problems solved with the invention

Der Einsatz von stark quellenden Polymeren kann als Sicherheitssystem zur Abdich­ tung von flüssigkeitführenden oder -beinhaltenden Medien dienen. Substanzen, die zur Herstellung der o.g. Polymere dienen können, sind im Anhang beispielhaft aufge­ listet.The use of strongly swelling polymers can act as a security system for sealing serve media containing or containing liquids. Substances that for the production of the above Polymers can serve as examples in the appendix lists.

4 Beschreibung der Erfindung4 Description of the invention 4.1 Sicherheitsabdichtung in der Kanalisation4.1 Safety seal in the sewage system

Die zur Zeit in der Kanalisation eingesetzten Konstruktionen beschränken sich im we­ sentlichen auf den Einsatz von Gummiabdichtungen, die das Austreten der in den Rohren befindlichen Flüssigkeiten verhindern sollen. Mit der Zeit kommt es aufgrund von Alterungserscheinungen des Gummis in diesem Zusammenhang aber zur Ver­ sprödung und Rißbildung, so daß mit der Zeit vermehrt Leckagen auftreten.The constructions currently used in the sewage system are limited essential to the use of rubber seals, which prevent the leakage in the Pipes to prevent liquids. In time it comes down to of signs of aging of the rubber in this context but for ver embrittlement and cracking, so that leakage occurs over time.

Hier kann ein Sicherheitssystem aus quellfähigen Polymeren, die nicht biologisch ab­ gebaut werden, Abhilfe schaffen. Kommt es zum Versagen der eigentlichen Dichtung tritt Flüssigkeit aus dem Rohr aus und trifft auf das quellfähige Polymer. Die ausgetre­ tene Flüssigkeit wird unter Volumenvergrößerung absorbiert und führt zu einer Ab­ dichtung des Systems gegenüber dem Flüssigkeitsaustritt (Fig. 1, 2).A security system made of swellable polymers that are not biodegradable can help here. If the actual seal fails, liquid escapes from the pipe and hits the swellable polymer. The leaked liquid is absorbed with an increase in volume and leads to a seal from the system to the liquid outlet ( Fig. 1, 2).

Die Herstellung der Polymer-/Geldichtung kann dabei als durch ein dehnbares, poröses Material gekapseltes Pulver oder als an Fasern appliziertes Polymer erfolgen. Das Anbringen der Polymer-/Geldichtung kann entweder in Form einer als Ring gefertig­ ten Polymer-/Geldichtung erfolgen, oder durch ein Wickelelement, das durch mehrfa­ ches Umwickeln mit einem Polymer-/Gelschlauch oder -gewebe angebracht werden kann.The production of the polymer / gel seal can be as a stretchy, porous Material encapsulated powder or as a polymer applied to fibers. The Attaching the polymer / gel seal can either be made in the form of a ring th polymer / gel seal, or by a winding element that by multiple fa wrap with a polymer / gel tube or fabric can.

Die Rohrmuffen sind für diese Applikation so zu modifizieren, daß der Gelring an der eingebauten Position fixiert wird, dies kann beispielsweise durch Fixierringe oder ent­ sprechende Erhöhungen an den Rohrmuffen erfolgen.For this application, the pipe sleeves must be modified so that the gel ring on the built-in position is fixed, this can for example by fixing rings or ent speaking increases on the pipe sockets.

4.2 Sicherheitsabdichtung in Folien oder Geweben4.2 Safety sealing in foils or fabrics

Folien oder dichte Gewebe werden u. a. auch dazu benutzt Systeme gegen das Ein- oder Austreten von Flüssigkeit zu schützen, bspw. verhindert in der Deponietechnik eine aufliegende Folie das Eindringen von Regenwasser in die Deponie oder eine un­ terhalb der Deponie befindliche Folie das unkontrollierte Austreten von Sickerwäs­ sern. Durch unsachgemäße Behandlung oder andere Umstände kann es zu einer Be­ schädigung der Folie kommen, die, wenn sie nicht rechtzeitig bemerkt wird, große Umweltschäden zur Folge haben kann.Foils or dense fabrics are u. a. also used systems against entry or To protect leakage of liquids, e.g. prevented in landfill technology an overlying film the entry of rainwater into the landfill or an un foil located below the landfill the uncontrolled leakage of leachate ser. Improper handling or other circumstances can lead to a damage to the film, which, if not noticed in good time, Environmental damage.

Werden quellfähige Polymere in die Folien eingearbeitet (Gelreservoir) oder in bzw. auf das Gewebe appliziert, quellen sie im Falle einer Leckage beim Kontakt mit Was­ ser auf und führen zu einer Abdichtung des Systems (Fig. 3). If swellable polymers are incorporated into the films (gel reservoir) or applied to or onto the tissue, they swell in the event of a leak upon contact with water and lead to a sealing of the system ( FIG. 3).

Tabelle 1 Table 1

Sonstige:
Sephadex G-100 (Sigma Chemical Co., St. Louis)
Biogel P-2, P-4, P-6, P-30, P-600 Bio-Rad labaratories, Richmond
Vernetzermonomere:
N,N'-Methylenbisacrylamid
Diallylamin
Diallylammoniumchlorid
Triallylamin
Triallylammoniumchlorid
DiallylweinsäurediamidOther:
Sephadex G-100 (Sigma Chemical Co., St. Louis)
Biogel P-2, P-4, P-6, P-30, P-600 Bio-Rad labaratories, Richmond
Crosslinking monomer:
N, N'-methylenebisacrylamide
Diallylamine
Diallyl ammonium chloride
Triallylamine
Triallyl ammonium chloride
Diallyl tartaric acid diamide

Claims (5)

1. Dichtung zur Verhinderung des Aus- oder Eintritts von Flüssigkeiten aus oder in Systeme, dadurch gekennzeichnet, daß nicht biologisch abbaubares quellfähiges Polymer in Pulverform, in gekapselter Form oder auf einem Gewebe appliziert, den abzudichtenden Bereich zusätzlich verschließt.1. Seal to prevent the escape or entry of liquids from or into systems, characterized in that non-biodegradable swellable polymer applied in powder form, in encapsulated form or on a tissue, the area to be sealed additionally closes. 2. Dichtung nach Anspruch 1, dadurch gekennzeichnet, daß ein quellfähiges Polymer in einem dehnbaren, flüssigkeitsdurchlässigen Material gekapselt ist.2. Seal according to claim 1, characterized in that a swellable polymer in a stretchable, liquid-permeable material is encapsulated. 3. Dichtung nach Anspruch 1, dadurch gekennzeichnet, daß das quellfähige Polymer in Folien, Reservoire bildend, aufgenommen ist.3. Seal according to claim 1, characterized in that the swellable polymer in films, reservoirs forming, is included. 4. Verwendung einer Dichtung nach einem der Ansprüche 1 bis 3, zur Abdichtung von Rohren.4. Use of a seal according to one of claims 1 to 3, for Sealing pipes. 5. Verwendung einer Dichtung nach einem der Ansprüche 1 bis 3, zur Abdichtung und/oder Versiegelung von Deponien.5. Use of a seal according to one of claims 1 to 3, for Sealing and / or sealing of landfills.
DE1997148631 1997-11-04 1997-11-04 Safety seal for liquid systems using swellable polymers Withdrawn DE19748631A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1997148631 DE19748631A1 (en) 1997-11-04 1997-11-04 Safety seal for liquid systems using swellable polymers
PCT/EP1998/007030 WO1999023401A1 (en) 1997-11-04 1998-11-04 Seal in order to prevent the exit or entry of liquids out of or into systems and the application thereof
AU15600/99A AU1560099A (en) 1997-11-04 1998-11-04 Seal in order to prevent the exit or entry of liquids out of or into systems andthe application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997148631 DE19748631A1 (en) 1997-11-04 1997-11-04 Safety seal for liquid systems using swellable polymers

Publications (1)

Publication Number Publication Date
DE19748631A1 true DE19748631A1 (en) 1999-05-06

Family

ID=7847544

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997148631 Withdrawn DE19748631A1 (en) 1997-11-04 1997-11-04 Safety seal for liquid systems using swellable polymers

Country Status (3)

Country Link
AU (1) AU1560099A (en)
DE (1) DE19748631A1 (en)
WO (1) WO1999023401A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955762C1 (en) * 1999-11-19 2001-02-01 Hilti Ag Sealing gland for domestic supply pipeline or cable fitted through building wall uses sealing sleeve of material which swells upon contact with liquid for preventing ingress of water
DE19955839C1 (en) * 1999-11-19 2001-03-01 Hilti Ag Sealant, for use in building industry for sealing outside connecting openings carrying pipes and cables etc. through walls, comprises plastic foam, containing a water-swellable, preferably polymeric, filler
DE10020493A1 (en) * 2000-04-26 2001-11-08 Dsi Rohrleitungsbau Zubehoer Device for sealing an annular space delimited by an inner and an outer body
WO2002023070A1 (en) * 2000-09-13 2002-03-21 Fitr Gesellschaft Für Innovation Im Tief- Und Rohrleitungsbau Weimar M.B.H. Sealing system
DE102004048154A1 (en) * 2004-10-02 2006-04-13 Hauff-Technik Gmbh & Co Kg Device for liquid-tight or gas-tight mutual delimitation of two rooms
DE102006044226A1 (en) * 2006-09-15 2008-03-27 Hildener Filz Produktion Gmbh & Co. Kg waterproofing membrane
DE102007032403A1 (en) * 2007-07-10 2009-01-22 Evonik Röhm Gmbh Use of a swellable polymer for sealing
EP2151610A1 (en) * 2008-08-04 2010-02-10 Carl Freudenberg KG Rotary shaft lip seals with swellable excluder lips
EP2151611A1 (en) * 2008-08-04 2010-02-10 Carl Freudenberg KG Rotary shaft lip seals with emergency seal lips
WO2010057606A3 (en) * 2008-11-19 2010-10-07 Sew-Eurodrive Gmbh & Co. Kg Sealing element having a passive activation element
DE102017101307A1 (en) 2017-01-24 2018-07-26 B. Braun Avitum Ag Dialyzer with improved internal filtration and process for its preparation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388136B (en) 2001-01-26 2005-05-18 E2Tech Ltd Device and method to seal boreholes
DE502006008657D1 (en) 2006-03-20 2011-02-17 Nussbaum & Co Ag R Connector for pipes with a swellable seal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH468586A (en) * 1967-07-12 1969-02-15 Buderus Eisenwerk Push-in socket pipe connection
US5172919A (en) * 1990-02-22 1992-12-22 C. I. Kasei Co., Ltd. Appliance for preventing water from leaking through joint
GB2273537B (en) * 1992-12-17 1996-01-31 Yong Goo Shin Ring packing

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955762C1 (en) * 1999-11-19 2001-02-01 Hilti Ag Sealing gland for domestic supply pipeline or cable fitted through building wall uses sealing sleeve of material which swells upon contact with liquid for preventing ingress of water
DE19955839C1 (en) * 1999-11-19 2001-03-01 Hilti Ag Sealant, for use in building industry for sealing outside connecting openings carrying pipes and cables etc. through walls, comprises plastic foam, containing a water-swellable, preferably polymeric, filler
EP1106665A2 (en) 1999-11-19 2001-06-13 HILTI Aktiengesellschaft Use of plastic foams containing swellable fillers for sealing wall ducts
US6716377B1 (en) 1999-11-19 2004-04-06 Hilti Aktiengesellschaft Use of plastic foams containing swellable fillers for sealing wall channels
DE10020493A1 (en) * 2000-04-26 2001-11-08 Dsi Rohrleitungsbau Zubehoer Device for sealing an annular space delimited by an inner and an outer body
WO2002023070A1 (en) * 2000-09-13 2002-03-21 Fitr Gesellschaft Für Innovation Im Tief- Und Rohrleitungsbau Weimar M.B.H. Sealing system
DE102004048154A1 (en) * 2004-10-02 2006-04-13 Hauff-Technik Gmbh & Co Kg Device for liquid-tight or gas-tight mutual delimitation of two rooms
DE102006044226A1 (en) * 2006-09-15 2008-03-27 Hildener Filz Produktion Gmbh & Co. Kg waterproofing membrane
DE102007032403A1 (en) * 2007-07-10 2009-01-22 Evonik Röhm Gmbh Use of a swellable polymer for sealing
US8309669B2 (en) 2007-07-10 2012-11-13 Evonik Röhm Gmbh Use of swellable polymer for sealing
EP2151610A1 (en) * 2008-08-04 2010-02-10 Carl Freudenberg KG Rotary shaft lip seals with swellable excluder lips
EP2151611A1 (en) * 2008-08-04 2010-02-10 Carl Freudenberg KG Rotary shaft lip seals with emergency seal lips
WO2010057606A3 (en) * 2008-11-19 2010-10-07 Sew-Eurodrive Gmbh & Co. Kg Sealing element having a passive activation element
CN102216657A (en) * 2008-11-19 2011-10-12 索尤若驱动有限及两合公司 Sealing element
CN102216657B (en) * 2008-11-19 2014-07-09 索尤若驱动有限及两合公司 Sealing element
CN103994229A (en) * 2008-11-19 2014-08-20 索尤若驱动有限及两合公司 Sealing element with passive activation element
CN103994229B (en) * 2008-11-19 2016-03-30 索尤若驱动有限及两合公司 There is the sealed member of passive activating part
DE102017101307A1 (en) 2017-01-24 2018-07-26 B. Braun Avitum Ag Dialyzer with improved internal filtration and process for its preparation

Also Published As

Publication number Publication date
AU1560099A (en) 1999-05-24
WO1999023401A1 (en) 1999-05-14

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