WO2018192696A1 - Flexible insulation material - Google Patents

Flexible insulation material Download PDF

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Publication number
WO2018192696A1
WO2018192696A1 PCT/EP2018/052745 EP2018052745W WO2018192696A1 WO 2018192696 A1 WO2018192696 A1 WO 2018192696A1 EP 2018052745 W EP2018052745 W EP 2018052745W WO 2018192696 A1 WO2018192696 A1 WO 2018192696A1
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WO
WIPO (PCT)
Prior art keywords
layer
rubber
insulation material
flexible insulation
flexible
Prior art date
Application number
PCT/EP2018/052745
Other languages
German (de)
French (fr)
Inventor
Tomasz Janiszewski
Jens Storre
Thomas AHLBRECHT
Original Assignee
Contitech Elastomer-Beschichtungen Gmbh
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Application filed by Contitech Elastomer-Beschichtungen Gmbh filed Critical Contitech Elastomer-Beschichtungen Gmbh
Publication of WO2018192696A1 publication Critical patent/WO2018192696A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/045—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/108—Rockwool fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant

Definitions

  • the invention relates to a flexible insulation material, in particular for thermal and / or acoustic insulation of components.
  • Flexible insulating material which can be adapted individually due to their viscosity, the geometry of the component to be insulated, u.a. out
  • a disadvantage of these single-layer systems is that for certain applications, the physical properties of the material, such as. Fire protection, vapor diffusion, chemical resistance, etc. are not sufficient. At the same time, these materials are mostly based on a silicone polymer, which, although compared to alternative polymers has a particularly good heat resistance even at high temperatures of more than 150 ° C, but at the same time subject to a relatively high price of raw materials.
  • the invention is therefore based on the object to provide a flexible insulating material, which is characterized by improved physical properties, in particular by improved fire properties, improved chemical resistance and / or improved vapor diffusion properties.
  • the flexible insulation material is made up of two or more layers, wherein at least one first layer A of the
  • the first layer A is composed of a rubber mixture containing at least one silicone rubber as the sole rubber component.
  • silicone rubbers Possible, for example, silicone rubbers, which are also referred to as poly (organo) siloxanes. They have groups accessible to crosslinking reactions, which are predominantly, but not exclusively, hydrogen atoms, hydroxy groups and vinyl groups, which may each be in the chain or at the chain ends.
  • RTV room temperature curing
  • HTV hot-curing silicone rubbers
  • One-component and two-component systems can be distinguished with RTV silicone rubbers.
  • the silicone rubber can also be used as a premix of polymer, filler and oil, as is common in the market.
  • the rubber mixture additionally contains at least one plasticizer.
  • plasticizers known to the skilled person which are compatible with the respective one
  • Silicone rubber are.
  • the use of silicone oil has proved to be advantageous, since this is well compatible with the silicone rubber.
  • Crosslinking silicone oils which participate in the crosslinking of the rubber mixture and are often referred to as crosslinkable silicone oils, have proven particularly suitable. These lead to a further significant reduction of possible exudation of plasticizers.
  • the rubber mixture of the first layer A according to the invention has proved to be advantageous, since this is well compatible with the silicone rubber.
  • Crosslinking silicone oils which participate in the crosslinking of the rubber mixture and are often referred to as crosslinkable silicone oils, have proven particularly suitable.
  • microspheres which are uniformly mixed into the rubber mixture.
  • hollow microspheres often referred to simply as microspheres, there are hollow spheres (microspheres) with a diameter in ⁇ - ⁇ glass, phenolic resin, carbon or thermoplastic material. They are available in expandable form, being filled with a propellant and expanding on heating, or in pre-expanded form, in which the expansion is already completed.
  • the rubber mixture preferably contains 2 to 200 phr of microspheres, particularly preferably 2 to 30 phr, very particularly preferably 2 to 15 phr of already expanded
  • Microspheres of thermoplastic material so that the rubber mixture already before the construction of the layer structure of the material or before crosslinking a
  • Microspheres offer the advantage of forming a closed pore structure that is more suitable for isolation purposes because of less convection in the pores.
  • excessive amounts of microspheres may result in processing problems in compounding or processing.
  • the second layer B is preferably a film or a film
  • Polymer blend which in a preferred embodiment has a pore structure, or mineral wool or a non-woven or a fabric or a knitted fabric.
  • thermoplastic elastomers As the material for the film elastomers, thermoplastic elastomers.
  • Thermoplastics and / or metals are used.
  • films of metal in particular aluminum or coated aluminum.
  • Thermoplastic films are preferably weather resistant films e.g. from PE, PP and the like, but also oil-resistant elastomeric films of NBR, BR, SBR or PU come into question.
  • the second layer B is a fleece or a woven fabric or a knitted fabric, a particularly good adhesion to the first layer A is given.
  • the nonwoven, woven or knitted fabric is preferably based on at least one thermoplastic.
  • the second layer B is composed of a polymer mixture, then it is preferably a rubber mixture containing at least one rubber component and further mixture ingredients.
  • the polymer mixture of the layer B is in one preferred embodiment free of silicone rubber, ie the amount of silicone rubber is 0 phr.
  • Examples of rubber components for the second layer B are: ethylene-propylene copolymer (EPM) and / or ethylene-propylene-diene copolymer (EPDM) and / or nitrile rubber (NBR) and / or (partially) hydrogenated nitrile rubber
  • FiNBR fluororubber
  • FKM fluorororubber
  • CR chloroprene rubber
  • NR natural rubber
  • SBR styrene-butadiene rubber
  • IR isoprene rubber
  • HR butyl rubber
  • BIIR bromobutyl rubber
  • CUR chlorobutyl rubber
  • BR butadiene rubber
  • CM chlorinated polyethylene
  • CSM chlorosulfonated polyethylene
  • ECO polyepichlorohydrin
  • ECO ethylene-vinyl acetate rubber
  • EDA ethylene-vinyl acetate rubber
  • AEM acrylate rubber
  • FFPM perfluorinated propylene rubber
  • FFKM FFKM
  • PU polyurethane
  • NR, HNBR or PU are preferably used alone or in combination.
  • the usual compounding ingredients include at least one crosslinker or crosslinker system (crosslinker and accelerator).
  • Other mixing ingredients are usually still a filler and / or a processing aid and / or a
  • Additive e.g., color pigments
  • the polymer mixture has a pore structure.
  • blowing agents are usually pore-forming propellant gases such.
  • the blowing agents decompose at a certain temperature during processing to form gas or with the addition of volatile solvents during the polymerization or
  • blowing agent but also expanded and / or expandable hollow microspheres made of polyacrylonitrile or glass can be used.
  • the polymer blend for the second layer B may also comprise a blend containing at least one thermoplastic component, i. at least one thermoplastic elastomer (TPE) and / or at least one thermoplastic (TP), at least one
  • TPE thermoplastic elastomer
  • TP thermoplastic
  • Rubber component which is at least partially crosslinked, and conventional
  • thermoplastic components are:
  • Polyolefm in particular polyethylene (PE) or polypropylene (PP), and / or polystyrene and / or polyamide (PA), for example PA6 or PA6.6, and / or polyester (PES).
  • PE polyethylene
  • PP polypropylene
  • PA polystyrene and / or polyamide
  • PA6 or PA6.6 PA6 or PA6.6
  • PET polyester
  • the second layer B can also be constructed of mineral wool.
  • Mineral wool is a soft material made of man-made mineral fibers. This may be slag wool, glass wool or rock wool.
  • the mineral wool offers in addition to the particularly high operating temperatures, an additional optimized acoustic insulation. At the same time it leads to no appreciable increase in weight of the entire material.
  • the second layer B may be made conductive in a particular embodiment.
  • conductive carbon blacks, carbon nanotubes (CNTs), ionic liquids or other suitable additives are introduced into the second layer B, for example.
  • the flexible insulation material may consist of two, three or four layers in a preferred embodiment.
  • the lowest layer is always the layer which is in direct contact with the component to be insulated.
  • the topmost layer is the location facing outward to surrounding.
  • the following layer structures are conceivable: a) Bottom layer: Second layer B of mineral wool
  • Top layer polymer blend with pore structure containing polyurethane Advantage of c): Insulation of temperatures above 250 ° C, at the same time more robust and lower costs d) Bottom layer: First layer A
  • Second layer B made of PVC film
  • top layer second layer B made of metal foil, z. Eg iron or aluminum advantage of e): Better vapor-proof
  • the flexible insulation material can assume all geometric shapes. So it may be plate-shaped or web-shaped, but also the design of cylindrical hollow bodies or polygonal hollow bodies, etc. is possible.

Abstract

The invention relates to a flexible insulation material, in particular for thermally insulating and/or soundproofing parts. In order to further optimize the physical properties, the flexible insulation material is composed of two or more layers, and at least a first layer (A) of the insulation material contains silicone rubber and hollow microspheres.

Description

Beschreibung Flexibles Isolationsmaterial  Description Flexible insulation material
Die Erfindung betrifft ein flexibles Isolationsmaterial, insbesondere zur thermischen und / oder akustischen Isolierung von Bauteilen. Flexible Isolationsmaterial, die zum Teil aufgrund ihrer Viskosität individuell der Geometrie des zu isolierenden Bauteils angepasst werden können, sind u.a. aus The invention relates to a flexible insulation material, in particular for thermal and / or acoustic insulation of components. Flexible insulating material, which can be adapted individually due to their viscosity, the geometry of the component to be insulated, u.a. out
EP2538416A1, EP2842992A1, EP2580268A1 oder EP2573441A1 bekannt. EP2538416A1, EP2842992A1, EP2580268A1 or EP2573441A1.
Hierbei handelt es sich immer um einlagige Systeme, was die hervorragende Flexibilität des Materials gewährleistet. These are always single-layer systems, which ensures the excellent flexibility of the material.
Nachteilig bei diesen einlagigen Systemen ist, dass für bestimmte Anwendung die physikalischen Eigenschaften des Materials, wie bspw. Brandschutz, Dampfdiffusion, chemische Beständigkeit, etc. nicht ausreichend sind. Gleichzeitig sind diese Materialien meist auf der Basis eines Silikonpolymers, der zwar im Vergleich alternativen Polymeren eine besonders gute Wärmebeständigkeit auch bei hohen Temperaturen von mehr als 150°C aufweist, allerdings gleichzeitig einem vergleichsweise hohen Rohstoffpreis unterliegt. A disadvantage of these single-layer systems is that for certain applications, the physical properties of the material, such as. Fire protection, vapor diffusion, chemical resistance, etc. are not sufficient. At the same time, these materials are mostly based on a silicone polymer, which, although compared to alternative polymers has a particularly good heat resistance even at high temperatures of more than 150 ° C, but at the same time subject to a relatively high price of raw materials.
Der Erfindung liegt daher die Aufgabe zu Grunde, ein flexibles Isolationsmaterial bereitzustellen, das sich durch verbesserte physikalische Eigenschaften, insbesondere durch verbesserte Brandeigenschaften, verbesserte chemische Beständigkeit und / oder verbesserte Dampfdiffusionseigenschaften auszeichnet. The invention is therefore based on the object to provide a flexible insulating material, which is characterized by improved physical properties, in particular by improved fire properties, improved chemical resistance and / or improved vapor diffusion properties.
Gelöst wird diese Aufgabe erfindungsgemäß dadurch, dass das flexible Isolationsmaterial aus zwei oder mehr Lagen aufgebaut ist, wobei wenigstens eine erste Lage A des This object is achieved according to the invention in that the flexible insulation material is made up of two or more layers, wherein at least one first layer A of the
Isolationsmaterials Silikonkautschuk und Mikrohohlkugeln enthält. Erfindungsgemäß ist die erste Lage A aus einer Kautschukmischung aufgebaut, die wenigstens einen Silikonkautschuk als einzige Kautschukkomponente enthält. Hierbei können alle der fachkundigen Person bekannten Silikonkautschuke verwendet werden. Möglich sind bspw. Silikonkautschuke, die auch als Poly(organo)siloxane bezeichnet werden. Sie weisen für Vernetzungsreaktionen zugängige Gruppen auf, wobei es sich vorwiegend, aber nicht ausschließlich, um Wasserstoffatome, Hydroxygruppen und Vinylgruppen handelt, welche sich jeweils in der Kette oder an den Kettenenden befinden können. Insulation material contains silicone rubber and hollow microspheres. According to the invention, the first layer A is composed of a rubber mixture containing at least one silicone rubber as the sole rubber component. In this case, all known to those skilled person silicone rubbers can be used. Possible, for example, silicone rubbers, which are also referred to as poly (organo) siloxanes. They have groups accessible to crosslinking reactions, which are predominantly, but not exclusively, hydrogen atoms, hydroxy groups and vinyl groups, which may each be in the chain or at the chain ends.
Es gibt kaltvernetzende Silikonkautschuke (RTV = Raumtemperatur vernetzend) und heiß vernetzende Silikonkautschuke (HTV = Hochtemperatur vernetzend). There are cold-curing silicone rubbers (RTV = room temperature curing) and hot-curing silicone rubbers (HTV = high-temperature crosslinking).
Bei den RTV-Silikonkautschuken lassen sich Ein- und Zweikomponentensysteme unterscheiden. Der Silikonkautschuk kann auch als Vormischung aus Polymer, Füllstoff und Öl, wie auf dem Markt üblich, eingesetzt werden. One-component and two-component systems can be distinguished with RTV silicone rubbers. The silicone rubber can also be used as a premix of polymer, filler and oil, as is common in the market.
Insbesondere zur Einstellung der Viskosität enthält die Kautschukmischung zusätzlich noch wenigstens einen Weichmacher. Hierbei können alle der fachkundigen Person bekannten Weichmacher verwendet werden, die kompatibel mit dem jeweiligen In particular, for adjusting the viscosity, the rubber mixture additionally contains at least one plasticizer. In this case, it is possible to use all plasticizers known to the skilled person which are compatible with the respective one
Silikonkautschuk sind. Insbesondere die Verwendung von Silikonöl hat sich hierbei als vorteilhaft erwiesen, da dies gut mit dem Silikonkautschuk verträglich ist. Besonders gut geeignet haben sich einvernetzende Silikonöle gezeigt, die sich an der Vernetzung der Kautschukmischung beteiligen und häufig als vernetzbare Silikonöle bezeichnet werden. Diese führen zu einer weiteren deutlichen Reduzierung eines möglichen Ausschwitzens von Weichmachern. Des Weiteren enthält die Kautschukmischung der ersten Lage A erfindungsgemäßSilicone rubber are. In particular, the use of silicone oil has proved to be advantageous, since this is well compatible with the silicone rubber. Crosslinking silicone oils, which participate in the crosslinking of the rubber mixture and are often referred to as crosslinkable silicone oils, have proven particularly suitable. These lead to a further significant reduction of possible exudation of plasticizers. Furthermore, the rubber mixture of the first layer A according to the invention
Mikrohohlkugeln, die in die Kautschukmischung gleichmäßig eingemischt sind. Bei den Mikrohohlkugeln, oft auch einfach als Mikrokugeln bezeichnet, handelt es sich um hohle Kugeln (Mikrosphären) mit einem Durchmesser im μιη-ΒεΓείΰΙι aus Glas, Phenolharz, Kohlenstoff oder thermoplastischem Kunststoffmaterial. Es gibt es sie in expandierbarer Form, wobei sie mit einem Treibmittel gefüllt sind und sich beim Erwärmen ausdehnen, oder in vorexpandierter Form, bei der die Ausdehnung schon abgeschlossen ist. Bevorzugt enthält die Kautschukmischung 2 bis 200 phr Mikrokugeln, besonders bevorzugt 2 bis 30 phr, ganz besonders bevorzugt 2 bis 15 phr bereits expandierte Hollow microspheres, which are uniformly mixed into the rubber mixture. In the hollow microspheres, often referred to simply as microspheres, there are hollow spheres (microspheres) with a diameter in μιη-ΒεΓείΰΙι glass, phenolic resin, carbon or thermoplastic material. They are available in expandable form, being filled with a propellant and expanding on heating, or in pre-expanded form, in which the expansion is already completed. The rubber mixture preferably contains 2 to 200 phr of microspheres, particularly preferably 2 to 30 phr, very particularly preferably 2 to 15 phr of already expanded
Mikrokugeln aus thermoplastischen Material, so dass die Kautschukmischung bereits vor der dem Aufbau des Lagenstruktur des Materials bzw. vor der Vernetzung eine Microspheres of thermoplastic material, so that the rubber mixture already before the construction of the layer structure of the material or before crosslinking a
Porenstruktur aufweist. Having pore structure.
Mikrokugeln bieten den Vorteil der Bildung einer geschlossenen Porenstruktur, die für Isolationszwecke wegen geringerer Konvektion in den Poren besser geeignet ist. Je höher die Menge an expandierten Mikrokugeln, desto besser wird durch den höheren Porenanteil die Isolationswirkung. Bei zu großen Mengen an Mikrokugeln können sich jedoch verarbeitungstechnische Probleme bei der Mischungsherstellung oder -Verarbeitung ergeben.  Microspheres offer the advantage of forming a closed pore structure that is more suitable for isolation purposes because of less convection in the pores. The higher the amount of expanded microspheres, the better the insulating effect becomes through the higher pore content. However, excessive amounts of microspheres may result in processing problems in compounding or processing.
Bei der zweiten Lage B handelt es sich bevorzugt um eine Folie oder um eine The second layer B is preferably a film or a film
Polymermischung, die in einer bevorzugten Ausführungsform eine Porenstruktur aufweist, oder um Mineralwolle oder um ein Vlies oder um ein Gewebe oder um ein Gewirke. Polymer blend, which in a preferred embodiment has a pore structure, or mineral wool or a non-woven or a fabric or a knitted fabric.
Als Material für die Folie können Elastomere, thermoplastische Elastomere. As the material for the film elastomers, thermoplastic elastomers.
Thermoplasten und / oder Metalle verwendet werden. Thermoplastics and / or metals are used.
Besonders bevorzugt ist die Verwendung von Folien aus Metall, insbesondere Aluminuium oder beschichtetes Aluminium. Particularly preferred is the use of films of metal, in particular aluminum or coated aluminum.
Thermoplastische Folien sind bevorzugt bewitterungsfeste Folien z.B. aus PE, PP und dergleichen, aber auch ölbeständige elastomere Folien aus NBR, BR, SBR oder PU kommen in Frage.  Thermoplastic films are preferably weather resistant films e.g. from PE, PP and the like, but also oil-resistant elastomeric films of NBR, BR, SBR or PU come into question.
Handelt es sich bei der zweiten Lage B um ein Vlies oder um ein Gewebe oder um ein Gewirke, so ist eine besonders gute Haftung an die erste Lage A gegeben. Das Vlies, Gewebe oder Gewirk ist hierbei bevorzugt auf der Basis wenigstens eines Thermoplasten. If the second layer B is a fleece or a woven fabric or a knitted fabric, a particularly good adhesion to the first layer A is given. The nonwoven, woven or knitted fabric is preferably based on at least one thermoplastic.
Ist die zweite Lage B aus einer Polymermischung aufgebaut, so handelt es sich bevorzugt um eine Kautschukmischung, enthaltend wenigstens eine Kautschukkomponente und weitere Mischungsingredienzien. Die Polymermischung der Lage B ist in einer bevorzugten Ausführungsform frei von Silikonkautschuk, d.h. die Menge an Silikonkautschuk beträgt 0 phr. If the second layer B is composed of a polymer mixture, then it is preferably a rubber mixture containing at least one rubber component and further mixture ingredients. The polymer mixture of the layer B is in one preferred embodiment free of silicone rubber, ie the amount of silicone rubber is 0 phr.
Als Kautschukkomponenten für die zweite Lage B sind insbesondere zu nennen: Ethylen- Propylen- Mischpolymerisat (EPM) und / oder Ethylen-Propylen-Dien-Mischpolymerisat (EPDM) und / oder Nitrilkautschuk (NBR) und / oder (teil)hydrierter Nitrilkautschuk Examples of rubber components for the second layer B are: ethylene-propylene copolymer (EPM) and / or ethylene-propylene-diene copolymer (EPDM) and / or nitrile rubber (NBR) and / or (partially) hydrogenated nitrile rubber
(FiNBR) und / oder Fluor-Kautschuk (FKM) und / oder Chloropren-Kautschuk (CR) und / oder Naturkautschuk (NR) und / oder Styrol-Butadien-Kautschuk (SBR) und / oder Isopren-Kautschuk (IR) und / oder Butylkautschuk (HR) und / oder Brombutylkautschuk (BIIR) und / oder Chlorbutylkautschuk (CUR) und / oder Butadien-Kautschuk (BR) und / oder Chloriertes Polyethylen (CM) und / oder Chlorsulfoniertes Polyethylen (CSM) und / oder Polyepichlorhydrin (ECO) und / oder Ethylen-Vinylacetat-Kautschuk (EVA) und / oder Acrylat-Kautschuk (ACM) und / oder Ethylen-Acrylat-Kautschuk (AEM) und / oder Perfluorinierter Propylen-Kautschuk (FFPM) und/ oder Perfluorcarbon-Kautschuk (FiNBR) and / or fluororubber (FKM) and / or chloroprene rubber (CR) and / or natural rubber (NR) and / or styrene-butadiene rubber (SBR) and / or isoprene rubber (IR) and / or butyl rubber (HR) and / or bromobutyl rubber (BIIR) and / or chlorobutyl rubber (CUR) and / or butadiene rubber (BR) and / or chlorinated polyethylene (CM) and / or chlorosulfonated polyethylene (CSM) and / or polyepichlorohydrin (ECO ) and / or ethylene-vinyl acetate rubber (EVA) and / or acrylate rubber (ACM) and / or ethylene-acrylate rubber (AEM) and / or perfluorinated propylene rubber (FFPM) and / or perfluorocarbon rubber
(FFKM) und / oder Polyurethan (PU). Die genannten Kautschukkomponenten können hierbei allein oder in Kombination verwendet werden. (FFKM) and / or polyurethane (PU). The rubber components mentioned can be used alone or in combination.
Besonders geeignet ist aufgrund der Bewitterungsfestigkeit und der thermischen  Particularly suitable is due to the weathering resistance and the thermal
Belastbarkeit die Verwendung von EPDM. Resilience the use of EPDM.
Sollen gleichzeitig Ölbeständigkeit und Wasserdampfdichtigkeit optimiert werden, so finden bevorzugt NR, HNBR oder PU alleine oder in Kombination Verwendung.  If at the same time oil resistance and water vapor resistance are to be optimized, NR, HNBR or PU are preferably used alone or in combination.
Besonders gute Flammbeständigkeit wird durch den Einsatz von CM, CSM oder CR alleine oder in Kombination erzielt. Particularly good flame resistance is achieved by the use of CM, CSM or CR alone or in combination.
Die üblichen Mischungsingredienzien umfassen wenigstens einen Vernetzer oder ein Vernetzersystem (Vernetzungsmittel und Beschleuniger). Weitere Mischungsingredienzien sind zumeist noch ein Füllstoff und/oder ein Verarbeitungshilfsmittel und/oder ein The usual compounding ingredients include at least one crosslinker or crosslinker system (crosslinker and accelerator). Other mixing ingredients are usually still a filler and / or a processing aid and / or a
Weichmacher und/oder ein Alterungsschutzmittel sowie gegebenenfalls weitere Plasticizer and / or an aging inhibitor and optionally further
Zusatzstoff (z.B. Farbpigmente). Diesbezüglich wird auf den allgemeinen Stand der Kautschukmischungstechnologie verwiesen. Additive (e.g., color pigments). In this regard, reference is made to the general state of rubber mixing technology.
Die Polymermischung weist in einer bevorzugten Ausführungsform eine Porenstruktur auf. Diese wird durch geeignete Blähmittel erreicht. Als Blähmittel werden üblicherweise porenbildende Treibgase wie z. B. Azo- und Diazo- Verbindungen, bezeichnet, die unter dem Einfluß von Wärme oder Katalysatoren Gase (z. B. N2 oder C02) abspalten und daher zur Herstellung geschäumter Polymermischungen dienen. Die Blähmittel zersetzen sich hierbei bei einer bestimmten Temperatur während der Verarbeitung unter Gas-Bildung oder bei Zusatz von flüchtigen Lösemitteln während der Polymerisation bzw. In a preferred embodiment, the polymer mixture has a pore structure. This is achieved by suitable blowing agents. As blowing agents are usually pore-forming propellant gases such. B. azo and diazo compounds, referred to under remove gases (eg N 2 or CO 2) from the influence of heat or catalysts and therefore serve to produce foamed polymer mixtures. The blowing agents decompose at a certain temperature during processing to form gas or with the addition of volatile solvents during the polymerization or
Vulkanisation. Als Blähmittel können aber auch expandierte und / oder expandierbare Mikrohohlkugeln aus Polyacrylnitril oder Glas verwendet werden. Vulcanization. As blowing agent but also expanded and / or expandable hollow microspheres made of polyacrylonitrile or glass can be used.
Die Polymermischung für die zweite Lage B kann ebenso eine Mischung, enthaltend wenigstens eine Thermoplastkomponente, d.h. wenigstens ein thermoplastisches Elastomer (TPE) und / oder wenigstens ein Thermoplast (TP), wenigstens eine The polymer blend for the second layer B may also comprise a blend containing at least one thermoplastic component, i. at least one thermoplastic elastomer (TPE) and / or at least one thermoplastic (TP), at least one
Kautschukkomponente, die zumindest teilvernetzt ist, sowie übliche Rubber component which is at least partially crosslinked, and conventional
Mischungsingredienzien, sein. Bevorzugte Thermoplastkomponenten sind hierbei: Mixture ingredients, be. Preferred thermoplastic components are:
Polyolefm, insbesondere Polyethylen (PE) oder Polypropylen (PP), und / oder Polystyrol und / oder Polyamid (PA), beispielsweise PA6 oder PA6.6, und / oder Polyester (PES). Polyolefm, in particular polyethylene (PE) or polypropylene (PP), and / or polystyrene and / or polyamide (PA), for example PA6 or PA6.6, and / or polyester (PES).
Die zweite Lage B kann auch aus Mineralwolle aufgebaut sein. The second layer B can also be constructed of mineral wool.
Bei Mineralwolle handelt es sich um einen weichen Werkstoff aus künstlich hergestellten mineralischen Fasern. Es kann sich hierbei um Schlackenwolle, Glaswolle oder Steinwolle handeln. Die Mineralwolle bietet zusätzlich zu den besonders hohen Einsatztemperaturen noch eine zusätzliche optimierte akustische Isolierung. Gleichzeitig führt sie zu keiner nennenswerten Gewichtserhöhung des Gesamtmaterials.  Mineral wool is a soft material made of man-made mineral fibers. This may be slag wool, glass wool or rock wool. The mineral wool offers in addition to the particularly high operating temperatures, an additional optimized acoustic insulation. At the same time it leads to no appreciable increase in weight of the entire material.
Mineralwolle bietet neben dem günstigen Preis auch eine gute Anbindung an die erste Lage A. Die zweite Lage B kann in einer besonderen Ausführungsform leitfähig ausgestaltet sein. Hierzu werden bspw. leitfähige Ruße, Carbonanotubes (CNT), Ionische Flüssigkeiten oder andere geeignete Zusatzstoffe in die zweite Lage B eingebracht.  Mineral wool offers in addition to the low price and a good connection to the first layer A. The second layer B may be made conductive in a particular embodiment. For this purpose, conductive carbon blacks, carbon nanotubes (CNTs), ionic liquids or other suitable additives are introduced into the second layer B, for example.
Das flexible Isolationsmaterial kann in einer bevorzugten Ausführungsform aus zwei, drei oder vier Lagen bestehen. Bei der untersten Lage handelt es sich dabei immer um die Lage, die sich in direktem Kontakt zu dem zu isolierenden Bauteil befindet. Die oberste Lage ist die Lage, die nach außen zu Umgebung weist. Folgende Lagenaufbauten sind denkbar: a) Unterste Lage: Zweite Lage B aus Mineral wolle The flexible insulation material may consist of two, three or four layers in a preferred embodiment. The lowest layer is always the layer which is in direct contact with the component to be insulated. The topmost layer is the location facing outward to surrounding. The following layer structures are conceivable: a) Bottom layer: Second layer B of mineral wool
Oberste Lage: Erste Lage A  Top location: First location A
Vorteil von a): Isolierung für höhere Temperaturen ab 250°C, gleichzeitig aber robuster und wasserfest b) Unterste Lage: Erste Lage A  Advantage of a): Insulation for higher temperatures from 250 ° C, but at the same time more robust and waterproof b) Bottom layer: First layer A
Oberste Lage: Zweite Lage B aus einer Polymermischung mit Porenstruktur enthaltend Polyurethan  Top layer: Second layer B of a polymer mixture with pore structure containing polyurethane
Vorteil von b): Isolierung für Temperaturen bis 250°C, gleichzeitig bessere Advantage of b): insulation for temperatures up to 250 ° C, at the same time better
Wärmeleitfähigkeit und geringere Kosten c) Unterste Lage: Zweite Lage B aus Mineral wolle Thermal conductivity and lower costs c) Bottom layer: Second layer B of mineral wool
Mittlere Lage: Erste Lage A  Middle location: first location A
Oberste Lage: Polymermischung mit Porenstruktur enthalten Polyurethan Vorteil von c): Isolierung von Temperaturen oberhalb 250°C, gleichzeitig robuster und geringere Kosten d) Unterste Lage: Erste Lage A  Top layer: polymer blend with pore structure containing polyurethane Advantage of c): Insulation of temperatures above 250 ° C, at the same time more robust and lower costs d) Bottom layer: First layer A
Oberste Lage: Zweite Lage B aus PVC-Folie  Top layer: Second layer B made of PVC film
Vorteil von d): auch Kaltisolierung möglich und verbesserte Dampfdichtigkeit e) Unterste Lage: erste Lage A Advantage of d): Cold insulation also possible and improved vapor-tightness e) Bottom layer: first layer A
Oberste Lage: Zweite Lage B aus Metallfolie, z. Bsp. Eisen oder Aluminium Vorteil von e): Bessere Dampfdichtigkeit  Top layer: second layer B made of metal foil, z. Eg iron or aluminum advantage of e): Better vapor-proof
Das flexible Isolationsmaterial kann alle geometrischen Formen annehmen. So kann es platten- bzw. bahnenförmig ausgebildet sein, aber auch die Ausgestaltung von zylindrischen Hohlkörpern oder eckigen Hohlkörpern, etc. ist möglich. The flexible insulation material can assume all geometric shapes. So it may be plate-shaped or web-shaped, but also the design of cylindrical hollow bodies or polygonal hollow bodies, etc. is possible.

Claims

Patentansprüche  claims
1. Flexibles Isolationsmaterial, dadurch gekennzeichnet, dass es aus zwei oder mehr Lagen aufgebaut ist, wobei wenigstens eine erste Lage A des Isolationsmaterials Silikonkautschuk und Mikrohohlkugeln enthält. 1. Flexible insulation material, characterized in that it is composed of two or more layers, wherein at least a first layer A of the insulating material contains silicone rubber and hollow microspheres.
Flexibles Isolationsmaterial nach Anspruch 1, dadurch gekennzeichnet, dass eine zweite Lage B enthält, wobei die zweite Lage B Folie oder eine Flexible insulating material according to claim 1, characterized in that a second layer B contains, wherein the second layer B foil or a
Polymermischung oder Mineral wolle ist.  Polymer blend or mineral wool is.
3. Flexibles Isolationsmaterial nach Anspruch 2, dadurch gekennzeichnet, dass die3. Flexible insulation material according to claim 2, characterized in that the
Polymermischung eine Porenstruktur aufweist. Polymer mixture has a pore structure.
4. Flexibles Isolationsmaterial nach einem der Ansprüche 1 bis 3, dadurch 4. Flexible insulation material according to one of claims 1 to 3, characterized
gekennzeichnet, dass es aus zwei, drei oder vier Lagen aufgebaut ist.  characterized in that it is composed of two, three or four layers.
PCT/EP2018/052745 2017-04-20 2018-02-05 Flexible insulation material WO2018192696A1 (en)

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EP0189720A1 (en) * 1984-12-31 1986-08-06 Hutchinson S.A. Thermally insulating material of the syntactical type, particularly elastomeric material, partly or completely fireproof
JPH04340027A (en) * 1991-05-15 1992-11-26 Matsushita Electric Ind Co Ltd Electric carpet
JP2000230541A (en) * 1998-12-08 2000-08-22 Sumitomo Electric Ind Ltd Rubber-coated roller and manufacture thereof
WO2004018919A2 (en) * 2002-08-21 2004-03-04 The Research Foundation Of State University Of New York Process for enhancing material properties and materials so enhanced
EP2538416A1 (en) 2011-06-24 2012-12-26 ContiTech Elastomer-Beschichtungen GmbH Insulation material
EP2573441A1 (en) 2011-09-22 2013-03-27 Georg Fischer Rohrleitungssysteme AG T-fitting
EP2580268A1 (en) 2010-06-09 2013-04-17 ContiTech Elastomer-Beschichtungen GmbH Insulation material and method for insulation
EP2842992A1 (en) 2013-08-27 2015-03-04 ContiTech Elastomer-Beschichtungen GmbH Insulation material

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189720A1 (en) * 1984-12-31 1986-08-06 Hutchinson S.A. Thermally insulating material of the syntactical type, particularly elastomeric material, partly or completely fireproof
JPH04340027A (en) * 1991-05-15 1992-11-26 Matsushita Electric Ind Co Ltd Electric carpet
JP2000230541A (en) * 1998-12-08 2000-08-22 Sumitomo Electric Ind Ltd Rubber-coated roller and manufacture thereof
WO2004018919A2 (en) * 2002-08-21 2004-03-04 The Research Foundation Of State University Of New York Process for enhancing material properties and materials so enhanced
EP2580268A1 (en) 2010-06-09 2013-04-17 ContiTech Elastomer-Beschichtungen GmbH Insulation material and method for insulation
EP2538416A1 (en) 2011-06-24 2012-12-26 ContiTech Elastomer-Beschichtungen GmbH Insulation material
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EP2842992A1 (en) 2013-08-27 2015-03-04 ContiTech Elastomer-Beschichtungen GmbH Insulation material

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