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WO2008141857A1 - Protective layer for elastomers from electromagnetic rays - Google Patents

Protective layer for elastomers from electromagnetic rays Download PDF

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Publication number
WO2008141857A1
WO2008141857A1 PCT/EP2008/053902 EP2008053902W WO2008141857A1 WO 2008141857 A1 WO2008141857 A1 WO 2008141857A1 EP 2008053902 W EP2008053902 W EP 2008053902W WO 2008141857 A1 WO2008141857 A1 WO 2008141857A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective layer
microparticles
bellows
elastomeric
elastomeric elements
Prior art date
Application number
PCT/EP2008/053902
Other languages
German (de)
French (fr)
Inventor
Siegfried Reck
Hubertus Gawinski
Eckhard Vogt
Reinhard Teves
Claus-Lüder Mahnken
Original Assignee
Contitech Luftfedersysteme Gmbh
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 Contitech Luftfedersysteme Gmbh filed Critical Contitech Luftfedersysteme Gmbh
Publication of WO2008141857A1 publication Critical patent/WO2008141857A1/en

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Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/0409—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the wall structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/02—Inflatable articles
    • B29D22/023—Air springs; Air bellows

Definitions

  • the invention relates to a protective layer for surfaces of elastomeric elements, in particular for the bellows wall of a bellows.
  • Such elastomeric surfaces are exposed, for example, in air springs of rail or road vehicles, especially in trucks strong environmental influences such as heat, radiation and abrasion.
  • the life of the elastomeric elements is often determined not by the breaking of a reinforcing element, but by the failure of the elastomeric elements.
  • thermal loads but also the chemical and physical environmental influences such as oxidation and UV radiation can lead to a particularly rapid damage to the elastomer, as due to high temperatures of the plasticizer from the elastomers and exits first the surface and then the lower layers of elastomeric Elements harden and become brittle.
  • PTFE has good temperature stability, it is difficult to combine with the usual rubber compounds, for example, from air spring bellows. Due to the poor adhesion, it comes accordingly at high loads to detachment of the coating.
  • the invention has for its object to provide a protective layer of the type described, which protects the surfaces of the elastomeric elements over the prior art better against heat and other radiation exposure and also has good adhesion to the elastomeric surfaces.
  • This object is achieved in that the protective layer of formed with the surface of the elastomeric elements connected fluororubber with embedded microparticles is formed, wherein the microparticles against electromagnetic radiation, in particular heat rays, have a high reflectivity.
  • Such a protective layer can easily be produced by vulcanization of the elastomeric element, for example by spraying, and is permanently bonded to the elastomeric surface by means of a suitable adhesive system.
  • the protective layer of fluororubber is transparent, high temperature stable and impermeable to plasticizers, oxygen and ozone and does not react with these substances.
  • the protective layer completely encloses the surface of the elastomeric element and fluororubber is impermeable to plasticizer. As a result, this remains in the elastomer, whereby embrittlement is prevented.
  • the reflective microparticles contained in the layer reflect electromagnetic radiation from infrared to ultraviolet, thereby reducing, for example, the heat input from the outside into the elastomeric element. The risk of other radiation damage is also significantly reduced.
  • the microparticles are metal particles.
  • the microparticles are graphite particles.
  • the protective layer according to the invention can be used for the protection of the wall of a rolling bellows of an air spring.
  • the protective layer according to the invention can protect the bellows wall well against the effects of temperature.
  • the protective layer according to the invention can be used for membranes in pressure accumulators or pumps.
  • the protective layer according to the invention can be used for elastomer coated fabrics on life rafts.
  • the protective layer according to the invention can be used on fuel tanks made of elastomeric material.
  • the single FIGURE shows a longitudinal section through a portion of a bellows wall 1 of an elastomeric air spring bellows.
  • the air spring bellows is constructed of an inner rubber layer 2, a transparent outer rubber layer 3, a reinforcement layer 4 of 2 intersecting fabrics 5 and 6, an outer protective layer 7 and an inner protective layer 8.
  • Inner protective layer 7 and outer protective layer 8 are fixedly connected via a bonding agent layer 10 and 11 to the inner rubber 2 and to the outer rubber 3, respectively.
  • the outer protective layer 7 has finely distributed reflector particles 9 in its interior. Due to the fact that the outer protective layer 7 is transparent, the reflecting particles 9 can reflect any electromagnetic radiation which may be present in the range from infrared to ultraviolet.
  • the inner protective layer has no reflector particles.
  • Both protective layers 7 and 8 are formed of a fluororubber and prevent diffusion of plasticizer from the innerliner 2 or the outerliner 3. Also, oxygen is prevented from entering the rubber layers 2 and 3 because the fluororubber of the protective layers 7 and 8 is oxygen-impermeable.
  • the reflectivity of the outer protective layer 8 also ensures that the heat input into the rubber layers 2 and 3 and the reinforcement layer 4 is greatly reduced.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

The invention relates to a protective layer (7, 8) for surfaces of elastomeric elements (1), particularly for the bellows wall (1) of an air spring bellows. The surfaces of the elastomeric elements in air springs of rail or street vehicles, particularly commercial vehicles, are subjected to strong environmental influences such as heat, radiation, and friction. The aim of the invention is to protect said surfaces in an improved fashion over the prior art from heat and other radiation stress. To this end, the protective layer is made of fluororubber connected in a fixed fashion to the surface of the elastomeric element (1) with embedded microparticles (9), wherein the microparticles (9) have good reflective properties for electromagnetic rays, particularly heat rays.

Description

Beschreibung description
Schutzschicht für elastomere ElementeProtective layer for elastomeric elements
Die Erfindung betrifft eine Schutzschicht für Oberflächen von elastomeren Elementen, insbesondere für die Balgwand eines Luftfederbalges.The invention relates to a protective layer for surfaces of elastomeric elements, in particular for the bellows wall of a bellows.
Derartige elastomere Oberflächen sind beispielsweise in Luftfedern von Schienen- oder Straßenfahrzeugen, insbesondere in Lastkraftwagen starken Umwelteinflüssen wie Wärme, Strahlung und Abrieb ausgesetzt.Such elastomeric surfaces are exposed, for example, in air springs of rail or road vehicles, especially in trucks strong environmental influences such as heat, radiation and abrasion.
Besonders aufgrund der hohen Qualität der zum Einsatz kommenden Werkstoffe, insbesondere von Festigkeitsträgern in den elastomeren Elementen wird die Lebensdauer der elastomeren Elemente häufig nicht durch den Bruch eines Festigkeitsträgers, sondern durch das Versagen der elastomeren Elemente bestimmt.Especially due to the high quality of the materials used, in particular of reinforcements in the elastomeric elements, the life of the elastomeric elements is often determined not by the breaking of a reinforcing element, but by the failure of the elastomeric elements.
Vor allem thermische Belastungen, aber auch die chemischen und physikalischen Umwelteinflüsse wie Oxidation und UV-Strahlung können zu einem besonders schnellen Schaden am Elastomer führen, da durch hohe Temperaturen der Weichmacher aus den Elastomeren austritt und erst die Oberfläche und dann die tiefer liegenden Schichten der elastomeren Elemente verhärtet und versprödet.Above all, thermal loads, but also the chemical and physical environmental influences such as oxidation and UV radiation can lead to a particularly rapid damage to the elastomer, as due to high temperatures of the plasticizer from the elastomers and exits first the surface and then the lower layers of elastomeric Elements harden and become brittle.
Es ist daher bekannt, die Oberflächen der elastomeren Elemente mit verschiedenen Stoffen zu beschichten, die Beständigkeit der Oberfläche gegen äußere Einflüsse und die Gleitfähigkeit verbessern. In der DE 10 2004 007 332 Al ist eine Luftfeder offenbart, bei der der Luftfederbalg mit einem Gleitmittel aus Polyurethan und Polytetrafluorethylen beschichtet ist, das die Haftfähigkeit von Schmutz auf der Balgaußenwand herabsetzen soll. Das Gleitmittel kann dabei bereits bei der Vulkanisation, aber auch nach Fertigstellung des Balges aufgebracht werden.It is therefore known to coat the surfaces of the elastomeric elements with various substances which improve the resistance of the surface against external influences and the lubricity. In DE 10 2004 007 332 Al an air spring is disclosed in which the air spring bellows is coated with a lubricant of polyurethane and polytetrafluoroethylene, which is to reduce the adhesion of dirt on the bellows outer wall. The lubricant can be applied during vulcanization, but also after completion of the bellows.
Von dieser Beschichtung ist jedoch eine dauerhaft verschleißmindernde Wirkung nicht zu erwarten, da hier zwar die Reibung herabgesetzt wird, ein weitergehender Schutz der Balgwand aber nicht gegeben ist. Außerdem reicht die Haftung zwischen diesen Materialien und dem Elastomer der Balgwand nicht aus. Insbesondere ist diese Art der Beschichtung nur unzureichend in der Lage, hohen Temperaturen stand zu halten, die beispielsweise in der Nähe von Auspuffanlagen von Kraftzeugen auftreten, da das Polyurethan nicht temperaturstabil ist.Of this coating, however, a permanent wear-reducing effect is not expected, since although the friction is reduced, a further protection of the bellows wall is not given. In addition, the adhesion between these materials and the elastomer of the bellows wall is insufficient. In particular, this type of coating is insufficiently able to withstand high temperatures that occur, for example, in the vicinity of exhaust systems of power tools, since the polyurethane is not thermally stable.
PTFE weist zwar eine gute Temperaturstabilität auf, lässt sich jedoch nur schlecht mit den üblichen Gummimischungen beispielsweise von Luftfederbälgen verbinden. Durch die schlechte Haftfähigkeit kommt es dementsprechend bei hohen Belastungen zu Ablösungen der Beschichtung.Although PTFE has good temperature stability, it is difficult to combine with the usual rubber compounds, for example, from air spring bellows. Due to the poor adhesion, it comes accordingly at high loads to detachment of the coating.
Eine alternative Schutzmöglichkeit ist in der US 3 982 559 dargestellt, in der eine elastomere Druckmembran für ein Regelventil für heiße Gase vorgeschlagen ist. Zum Schutz vor hohen Temperaturen ist die Membran mit Schutzlagen aus PTFE abgedeckt, die jedoch nicht fest mit dem Elastomer verbunden sind. Für die Belastungen eines Rollbalges ist ein derartiger Aufbau aus getrennten Lagen, wie er ähnlich auch in der JP 5 909 353 6 AA gezeigt ist, nicht geeignet.An alternative means of protection is shown in US 3,982,559, which proposes an elastomeric pressure membrane for a hot gas control valve. To protect against high temperatures, the membrane is covered with protective layers of PTFE, which are not firmly connected to the elastomer. For the loads of a rolling bellows such a structure of separate layers, as it is similarly shown in JP 5 909 353 6 AA, not suitable.
Der Erfindung liegt die Aufgabe zugrunde, eine Schutzschicht der eingangs geschilderten Art zu schaffen, die die Oberflächen der elastomeren Elemente gegenüber dem Stand der Technik besser gegen Wärme und sonstige Strahlenbelastung schützt und außerdem eine gute Haftfähigkeit auf den elastomeren Oberflächen aufweist. Diese Aufgabe wird dadurch gelöst, dass die Schutzschicht aus fest mit der Oberfläche der elastomeren Elemente verbundenem Fluorkautschuk mit eingebetteten Mikroteilchen ausgebildet ist, wobei die Mikroteilchen gegen elektromagnetische Strahlungen, insbesondere Wärmestrahlen, eine hohe Reflexionsfähigkeit aufweisen.The invention has for its object to provide a protective layer of the type described, which protects the surfaces of the elastomeric elements over the prior art better against heat and other radiation exposure and also has good adhesion to the elastomeric surfaces. This object is achieved in that the protective layer of formed with the surface of the elastomeric elements connected fluororubber with embedded microparticles is formed, wherein the microparticles against electromagnetic radiation, in particular heat rays, have a high reflectivity.
Eine derartige Schutzschicht lässt sich nach der Vulkanisation des elastomeren Elementes beispielsweise durch Aufsprühen einfach erzeugen und ist mittels eines geeigneten Haftsystems dauerhaft mit der elastomeren Oberfläche verbunden.Such a protective layer can easily be produced by vulcanization of the elastomeric element, for example by spraying, and is permanently bonded to the elastomeric surface by means of a suitable adhesive system.
Die Schutzschicht aus Fluorkautschuk ist transparent, hochtemperaturstabil und undurchlässig für Weichmacher, Sauerstoff und Ozon und reagiert auch nicht mit diesen Stoffen.The protective layer of fluororubber is transparent, high temperature stable and impermeable to plasticizers, oxygen and ozone and does not react with these substances.
Die Schutzschicht umschließt die Oberfläche des elastomeren Elementes vollständig und Fluorkautschuk ist undurchlässig für Weichmacher. Dadurch verbleibt dieser in dem Elastomer, wodurch eine Versprödung verhindert wird.The protective layer completely encloses the surface of the elastomeric element and fluororubber is impermeable to plasticizer. As a result, this remains in the elastomer, whereby embrittlement is prevented.
Die in der Schicht enthaltenden reflektierenden Mikroteilchen reflektieren elektromagnetische Strahlen von Infrarot bis Ultraviolett und vermindern dadurch beispielsweise auch den Wärmeeintrag von außen in das elastomere Element. Auch das Risiko von anderen Strahlenschäden ist deutlich reduziert.The reflective microparticles contained in the layer reflect electromagnetic radiation from infrared to ultraviolet, thereby reducing, for example, the heat input from the outside into the elastomeric element. The risk of other radiation damage is also significantly reduced.
In einer Weiterbildung der Erfindung sind die Mikroteilchen Metallpartikel.In a further development of the invention, the microparticles are metal particles.
In einer Weiterbildung der Erfindung sind die Mikroteilchen Graphitpartikel.In a development of the invention, the microparticles are graphite particles.
Mit den genannten Mikroteilchen lässt sich eine gute Reflexionsfähigkeit gegen elektromagnetische Strahlung erzielen und die Beständigkeit elastomerer Elemente vor allem gegen Wärme und sonstige elektromagnetische Strahlung deutlich verbessern. Die erfindungsgemäße Schutzschicht kann für den Schutz der Wand eines Abrollbalges einer Luftfeder verwendet werden.With the microparticles mentioned a good reflectivity against electromagnetic radiation can be achieved and the resistance of elastomeric elements, especially against heat and other electromagnetic radiation significantly improve. The protective layer according to the invention can be used for the protection of the wall of a rolling bellows of an air spring.
Besonders unter erschwerten Einsatzbedingungen, beispielsweise in der Nähe einer Auspuffanlage eines Kraftfahrzeugs, kann die erfindungsgemäße Schutzschicht die Balgwand gut gegen die Temperatureinflüsse schützen.Particularly under difficult conditions of use, for example in the vicinity of an exhaust system of a motor vehicle, the protective layer according to the invention can protect the bellows wall well against the effects of temperature.
Die erfindungsgemäße Schutzschicht kann für Membrane in Druckspeichern oder Pumpen verwendet werden.The protective layer according to the invention can be used for membranes in pressure accumulators or pumps.
Die erfindungsgemäße Schutzschicht kann für elastomerbeschichtete Gewebe an Rettungsinseln verwendet werden.The protective layer according to the invention can be used for elastomer coated fabrics on life rafts.
Die erfindungsgemäße Schutzschicht kann an Kraftstofftanks aus elastomerem Material verwendet werden.The protective layer according to the invention can be used on fuel tanks made of elastomeric material.
Anhand der Zeichnung wird nachstehend ein Beispiel der Erfindung näher erläutert.With reference to the drawing, an example of the invention will be explained in more detail below.
Die einzige Figur zeigt einen Längsschnitt durch einen Abschnitt einer Balgwand 1 eines elastomeren Luftfederbalges.The single FIGURE shows a longitudinal section through a portion of a bellows wall 1 of an elastomeric air spring bellows.
Der Luftfederbalg ist aus einer Innengummischicht 2, einer transparenten Außengummischicht 3, einer Festigkeitsträgerlage 4 aus 2 sich kreuzenden Geweben 5 und 6, einer äußeren Schutzschicht 7 und einer inneren Schutzschicht 8 aufgebaut. Innere Schutzschicht 7 und äußere Schutzschicht 8 sind jeweils über eine Haftvermittlerschicht 10 und 11 mit dem Innengummi 2 bzw. mit dem Außengummi 3 fest verbunden. Die äußere Schutzschicht 7 weist in ihrem Inneren fein verteilte Reflektorteilchen 9 auf. Dadurch, dass die äußere Schutzschicht 7 transparent ist, können die Reflektionsteilchen 9 eventuell einwirkende elektromagnetische Strahlung im Bereich von Infrarot bis ultraviolett reflektieren. Die innere Schutzschicht weist keine Reflektorteilchen auf. Beide Schutzschichten 7 und 8 sind aus einem Fluorkautschuk ausgebildet und verhindern eine Diffusion von Weichmacher aus dem Innengummi 2 oder dem Außengummi 3. Ebenfalls verhindert wird ein Sauerstoffeintrag in die Gummischichten 2 und 3, da der Fluorkautschuk der Schutzschichten 7 und 8 sauerstoffundurchlässig ist.The air spring bellows is constructed of an inner rubber layer 2, a transparent outer rubber layer 3, a reinforcement layer 4 of 2 intersecting fabrics 5 and 6, an outer protective layer 7 and an inner protective layer 8. Inner protective layer 7 and outer protective layer 8 are fixedly connected via a bonding agent layer 10 and 11 to the inner rubber 2 and to the outer rubber 3, respectively. The outer protective layer 7 has finely distributed reflector particles 9 in its interior. Due to the fact that the outer protective layer 7 is transparent, the reflecting particles 9 can reflect any electromagnetic radiation which may be present in the range from infrared to ultraviolet. The inner protective layer has no reflector particles. Both protective layers 7 and 8 are formed of a fluororubber and prevent diffusion of plasticizer from the innerliner 2 or the outerliner 3. Also, oxygen is prevented from entering the rubber layers 2 and 3 because the fluororubber of the protective layers 7 and 8 is oxygen-impermeable.
Die Reflexionsfähigkeit der äußeren Schutzschicht 8 sorgt außerdem dafür, dass der Wärmeeintrag in die Gummischichten 2 und 3 sowie die Festigkeitsträgerlage 4 stark reduziert ist.The reflectivity of the outer protective layer 8 also ensures that the heat input into the rubber layers 2 and 3 and the reinforcement layer 4 is greatly reduced.
Damit ist eine deutliche Lebensdauerverlängerung der Balgwand 1 erreichbar. For a significant life extension of the bellows wall 1 can be achieved.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
(Teil der Beschreibung)(Part of the description)
1 Balgwand eines Luftfederbalges1 bellows wall of a bellows
2 Innengummischicht der Balgwand 12 inner rubber layer of the bellows wall 1
3 Außengummischicht der Balgwand 13 outer rubber layer of the bellows wall 1
4 Festigkeitsträgerlage 5, 6 Gewebe der Festigkeitsträgerlage 44 reinforcement layer 5, 6 fabric of the reinforcement layer 4
7 äußere Schutzschicht7 outer protective layer
8 innere Schutzschicht8 inner protective layer
9 Reflexionsteilchen 10, 11 Haftvermittlerschicht 9 reflection particles 10, 11 adhesion promoter layer

Claims

Patentansprüche claims
1. Schutzschicht (7, 8) für Oberflächen von elastomeren Elementen (1), insbesondere für die Balgwand (1) eines Luftfederbalges, dadurch gekennzeichnet, dass die1. protective layer (7, 8) for surfaces of elastomeric elements (1), in particular for the bellows wall (1) of an air spring bellows, characterized in that the
Schutzschicht (7, 8) aus fest mit der Oberfläche der elastomeren Elemente (1) verbundenem Fluorkautschuk mit eingebetteten Mikroteilchen (9) ausgebildet ist, wobei die Mikroteilchen (9) gegen elektromagnetische Strahlungen, insbesondere Wärmestrahlen, eine hohe Reflexionsfähigkeit aufweisen.Protective layer (7, 8) made of fluorine rubber with embedded microparticles (9) firmly connected to the surface of the elastomeric elements (1) is formed, wherein the microparticles (9) against electromagnetic radiation, in particular heat rays, have a high reflectivity.
2. Schutzschicht (7, 8) nach Anspruch 1, dadurch gekennzeichnet, dass die Mikroteilchen (9) Metallpartikel sind.Second protective layer (7, 8) according to claim 1, characterized in that the microparticles (9) are metal particles.
3. Schutzschicht (7, 8) nach Anspruch 1, dadurch gekennzeichnet, dass die Mikroteilchen (9) Graphitpartikel sind.3. Protective layer (7, 8) according to claim 1, characterized in that the microparticles (9) are graphite particles.
4. Verwendung der Schutzschicht (7, 8) nach Anspruch 1 für den Schutz der Wand eines Abrollbalges einer Luftfeder.4. Use of the protective layer (7, 8) according to claim 1 for the protection of the wall of a Abrollbalges an air spring.
5. Verwendung der Schutzschicht (7, 8) nach Anspruch 1 für Membrane in Druckspeichern oder Pumpen.5. Use of the protective layer (7, 8) according to claim 1 for membranes in accumulators or pumps.
6. Verwendung der Schutzschicht (7, 8) nach Anspruch 1 für elastomerbeschichtete Gewebe an Rettungsinseln.6. Use of the protective layer (7, 8) according to claim 1 for elastomer-coated fabric on life rafts.
7. Verwendung der Schutzschicht (7, 8) nach Anspruch 1 an Kraftstofftanks aus elastomerem Material. 7. Use of the protective layer (7, 8) according to claim 1 to fuel tanks made of elastomeric material.
PCT/EP2008/053902 2007-05-23 2008-04-02 Protective layer for elastomers from electromagnetic rays WO2008141857A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710023995 DE102007023995A1 (en) 2007-05-23 2007-05-23 Protective layer for elastomeric elements
DE102007023995.7 2007-05-23

Publications (1)

Publication Number Publication Date
WO2008141857A1 true WO2008141857A1 (en) 2008-11-27

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WO (1) WO2008141857A1 (en)

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WO2011057880A1 (en) 2009-11-16 2011-05-19 Contitech Antriebssysteme Gmbh Article having a reflective protective coating and method for the production thereof
DE102010037842A1 (en) 2010-09-29 2012-03-29 Contitech Luftfedersysteme Gmbh Article, useful as flexible containers, tarpaulins, protective clothing, tents, rafts, diaphragms and/or bellows, comprises base body of polymeric material exhibiting elastic properties
EP2439436A1 (en) 2010-10-11 2012-04-11 ContiTech MGW GmbH Item exposed to heat or warmth, in particular a charge air hose
DE102011000410A1 (en) 2011-01-31 2012-08-02 Contitech Luftfedersysteme Gmbh Reactive article e.g. reactive pneumatic spring bellow, has group of capsules containing substance or substance mixture with self-healing properties, and another group of capsules containing mixture reporting forthcoming article failure
DE102011053947A1 (en) 2011-09-27 2013-03-28 Contitech Luftfedersysteme Gmbh Article e.g. a pneumatic spring bag, comprises a base body made of a polymeric material with elastic properties, where microparticles e.g. microcapsules are interfered in polymeric material of base body and comprise phase-change material
DE102012223109A1 (en) * 2012-12-13 2014-06-18 Continental Teves Ag & Co. Ohg Producing air spring unit by forming rolling bellows of air spring unit from elastomeric material and reinforcing material, and adding nanoscale material to elastomer material so that bellows include outer layer made of nanoscale material
US9745434B2 (en) 2008-12-15 2017-08-29 Trelleborg Industrial Products Uk Ltd Elastomeric body with elastic fire retardant coating
DE102016223310A1 (en) 2016-11-24 2018-05-24 Contitech Luftfedersysteme Gmbh Air spring with a protection against heat input

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DE102014213917B4 (en) 2014-07-17 2023-08-31 Contitech Luftfedersysteme Gmbh Protective layer for an elastomer product for frequency-selective reflection of electromagnetic radiation
DE102015217873A1 (en) * 2015-09-17 2017-03-23 Contitech Luftfedersysteme Gmbh Articles, in particular an air spring bellows, a metal-rubber element or a vibration damper
CN105136444B (en) * 2015-09-24 2018-01-02 北京理工大学 Particle chain damping damping unit and particle chain damping damping test method
DE102016221202A1 (en) * 2016-10-27 2018-05-03 Contitech Luftfedersysteme Gmbh Air spring element
DE102022119384A1 (en) 2022-08-02 2024-02-08 MöllerWerke GmbH Wall material for compensators

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US9745434B2 (en) 2008-12-15 2017-08-29 Trelleborg Industrial Products Uk Ltd Elastomeric body with elastic fire retardant coating
WO2011057880A1 (en) 2009-11-16 2011-05-19 Contitech Antriebssysteme Gmbh Article having a reflective protective coating and method for the production thereof
DE102009044533A1 (en) 2009-11-16 2011-05-19 Contitech Antriebssysteme Gmbh Article with a reflective protective layer and process for its preparation
DE102010037842A1 (en) 2010-09-29 2012-03-29 Contitech Luftfedersysteme Gmbh Article, useful as flexible containers, tarpaulins, protective clothing, tents, rafts, diaphragms and/or bellows, comprises base body of polymeric material exhibiting elastic properties
EP2439436A1 (en) 2010-10-11 2012-04-11 ContiTech MGW GmbH Item exposed to heat or warmth, in particular a charge air hose
DE102010038083A1 (en) 2010-10-11 2012-04-12 Contitech Mgw Gmbh Heat or heat exposed articles, especially a charge air hose
DE102011000410A1 (en) 2011-01-31 2012-08-02 Contitech Luftfedersysteme Gmbh Reactive article e.g. reactive pneumatic spring bellow, has group of capsules containing substance or substance mixture with self-healing properties, and another group of capsules containing mixture reporting forthcoming article failure
DE102011053947A1 (en) 2011-09-27 2013-03-28 Contitech Luftfedersysteme Gmbh Article e.g. a pneumatic spring bag, comprises a base body made of a polymeric material with elastic properties, where microparticles e.g. microcapsules are interfered in polymeric material of base body and comprise phase-change material
DE102012223109A1 (en) * 2012-12-13 2014-06-18 Continental Teves Ag & Co. Ohg Producing air spring unit by forming rolling bellows of air spring unit from elastomeric material and reinforcing material, and adding nanoscale material to elastomer material so that bellows include outer layer made of nanoscale material
DE102016223310A1 (en) 2016-11-24 2018-05-24 Contitech Luftfedersysteme Gmbh Air spring with a protection against heat input

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