EP0683280A1 - Thermal and acoustic insulating component - Google Patents

Thermal and acoustic insulating component Download PDF

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Publication number
EP0683280A1
EP0683280A1 EP95105020A EP95105020A EP0683280A1 EP 0683280 A1 EP0683280 A1 EP 0683280A1 EP 95105020 A EP95105020 A EP 95105020A EP 95105020 A EP95105020 A EP 95105020A EP 0683280 A1 EP0683280 A1 EP 0683280A1
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EP
European Patent Office
Prior art keywords
component according
fleece
component
fibers
layer
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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.)
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EP95105020A
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German (de)
French (fr)
Inventor
Jörg Fischer
Stefan . Dr. Lahner
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M Faist GmbH and Co KG
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M Faist GmbH and Co KG
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Publication of EP0683280A1 publication Critical patent/EP0683280A1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/045—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being laminated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7654—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
    • E04B1/7662—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres comprising fiber blankets or batts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements

Definitions

  • the invention relates to a sound-absorbing and thermally insulating component of the type mentioned in claim 1.
  • a non-woven thermal insulation layer is on one side with a dimensionally stable support layer, e.g. a metallic or plastic part, and on the opposite side with an open-pore protective covering made of e.g. covered with a zinc alloy, which has low thermal insulation properties.
  • a sound insulation composite that can be used for automobiles is known (DE-A-41 31 394), of which a layer consists of an air-permeable nonwoven fabric with a basis weight of less than 200 g / m 2, which has a core layer of honeycomb-like cavities on one side and partitions connected and covered on the opposite side with a membrane film.
  • a layer consists of an air-permeable nonwoven fabric with a basis weight of less than 200 g / m 2, which has a core layer of honeycomb-like cavities on one side and partitions connected and covered on the opposite side with a membrane film.
  • a component is known (DE-A-38 41 187), in which the absorption layer is connected to a relatively thin, flexible barrier layer made of, for example, polypropylene to improve the sound-insulating properties.
  • a relatively thin, flexible barrier layer made of, for example, polypropylene to improve the sound-insulating properties.
  • sound-absorbing components are used in motor vehicles, for example, as floor pillar cladding in the interior.
  • the invention has for its object to improve a soundproofing component of the type mentioned in a simple manner in terms of its insulation and insulation properties. It is also desirable to use the soundproofing component, in particular for building construction and expand installations at this one. Another wish is that the component can be better disposed of.
  • the fleece of the absorption layer has a heat or cold insulation density between 5 and 150 kg / m3 in particular.
  • Nonwovens are textile composites that are not created by weaving or knitting, but by intertwining and / or by cohesive and / or adhesive bonding of textile fibers and / or by needling and / or by an air layer process (whirled up by air and then loosely layered Fibers, in particular with a preferred orientation) are produced.
  • the density or density is 5-40 kg / m3, in particular up to 20 kg / m3, while in an embodiment of the invention manufactured as a rigid press plate, the density or the Density between 10 and 150 kg / m3, in particular more than 50 kg / m3.
  • the fleece should have a thermal conductivity between 0.03 and 0.07 W / mK.
  • Polyester fibers which are formed from saturated linear aliphatic / aromatic polyesters or fibers made from PET (polyethylene terephthalate) or PBT (polybutylene terephthalate) are particularly preferably used for the nonwoven. Copolyester fibers and BIKO (bicomponent) fibers made from different polymers can also be used.
  • the invention is therefore particularly suitable for sound and thermal insulation of buildings, pipelines, systems, stationary machines and containers, including soundproof booths, as are preferably used in measuring rooms.
  • the present invention provides a good replacement for the currently. used mineral fiber products, which represents a significant improvement in production, application and disposal due to the carcinogenicity of mineral fibers.
  • the layer thickness of the component should be between 1 and 4 cm for impact sound insulation purposes, whereas thicker components between 2 and 50 cm are preferred for conventional thermal insulation purposes.
  • the layer thickness is largely determined by the fleece, whereas the barrier layer is comparatively thin with a thickness between 0.1 and 5 mm.
  • non-flammable fibers to the plastic fibers and, if appropriate, add flame-retardant particles, including in particular aluminum hydroxide with a particle size between 0.5 and 100 ⁇ m.
  • flame-retardant particles including in particular aluminum hydroxide with a particle size between 0.5 and 100 ⁇ m.
  • aluminum hydroxide as a flame-retardant finish is already known per se (rubber, asbestos, plastics, 1978, pages 863-866). It is understood that other flame retardant and fire retardant additives, such as phosphorus compounds, are applicable and the fleece can also be provided with such coatings on the surface, provided that the soundproofing properties are not significantly impaired.
  • the soundproofing component is equipped at least according to fire class B2.
  • the oleophobic and / or hydrophobic finishing of the fleece is recommended.
  • the use of herbicides and insecticides as surface protection or storage in the porous absorption layer is also suitable, provided that there are no disposal problems.
  • the barrier layer expediently also consists of polyester in the form of a film with a layer thickness between 0.1 and 1 mm.
  • a vapor barrier can also consist of metal, in particular an aluminum foil, and even of carrier papers, provided that these are sufficiently designed as vapor barriers. It is recommended to cover the fleece with the barrier layer on only one side.
  • a fleece 1 has more than 80%, in particular between 85 and 100%, polyester fibers PES with a fiber length of at least 5 mm.
  • the layer thickness is between 0.2 and 20 cm and the density or density is between 5 and 150 kg / m3.
  • the plastic fibers 1a made of PES are accordingly arranged in a substantially confused distribution.
  • the fleece 1 is covered on one side with a barrier layer 2 made of a polyester film with a layer thickness of 0.1 and 1.0 mm, which is shown partially raised in FIG. 1.
  • the barrier layer 2 can also be a lamination with a textile layer in order to promote the appearance and / or the fastening.
  • the combination of the fleece 1 with the barrier layer 2 serving as a vapor barrier serves as a roof insulation component instead of the previously used mineral wool and aluminum coating.
  • an edge 2a of the barrier layer 2 projects over the fleece 1 for connection to other components or to neighboring components.
  • the edge 2a can e.g. 2 to 10 cm wide.
  • the fleece 1 which has hollow plastic fibers 1 made of PES on the inside, is bendable in such a way that it is placed like a bandage on the outside around the pipe 3 as thermal and also sound-insulating insulation.
  • the winding material 10 collides at the joint 10a and for this purpose forms the annular jacket around the tube 3.
  • this tube jacket is designed as a molded part and can be laminated on the outside with an aluminum foil.
  • the fleece 1 is compressed much more strongly to a density or a density between in particular 50 and 150 kg / m3, so that a substantially rigid press plate 11 is formed, which is preferably used for impact sound insulation in the floor area of buildings and in addition to the plastic fibers 1a also contains flame-retardant particles 4 made of aluminum hydroxide.
  • the product is not hygroscopic; there are no corrosive or toxic combustion products in the event of a fire, so that even in the event of disposal there is no risk of environmental damage, although the pressure plate 11 is thereby designed to be flame-retardant in accordance with the conditions of fire class B2a.
  • a lamination layer made of textile layer parts is also attached to the fleece 1 as a barrier layer 2 with a projecting edge 2a.
  • the component according to the invention is used primarily as cavity sound insulation of e.g. Blind beams for wooden beam ceilings, stud walls, suspended ceilings, as an acoustic element, e.g. self-supporting decorative surfaces for grid ceilings, as a mobile soundproofing partition in e.g. Offices and used as intermediate barrier insulation.
  • cavity sound insulation e.g. Blind beams for wooden beam ceilings, stud walls, suspended ceilings
  • an acoustic element e.g. self-supporting decorative surfaces for grid ceilings
  • a mobile soundproofing partition in e.g. Offices and used as intermediate barrier insulation.

Abstract

The component structure for the absorption of noise, and thermal insulation, is composed of a fibre felting (1) mostly of synthetic fibres (1a) which are mostly of polyester. It is fitted with a barrier layer (2) of a polyester film or aluminium foil. <IMAGE>

Description

Die Erfindung bezieht sich auf ein schallabsorbierendes und thermisch isolierendes Bauteil der im Anspruch 1 genannten Gattung.The invention relates to a sound-absorbing and thermally insulating component of the type mentioned in claim 1.

Ein solches Bauteil ist bereits bekannt (DE-U-90 10 136). Es wird als Wärmedämmschild insbesondere in der Automobilindustrie verwendet. Dabei ist eine ein Faservlies aufweisende Wärmedämmschicht an einer Seite mit einer formstabilen Trägerschicht, z.B. einem metallischen oder auch aus Kunststoff bestehenden Formteil, und an der entgegengesetzten Seite mit einem offenporigen Schutzbelag aus z.B. einer Zinklegierung abgedeckt, welche geringe thermische Isoliereigenschaften aufweist.Such a component is already known (DE-U-90 10 136). It is used as a thermal insulation shield, particularly in the automotive industry. A non-woven thermal insulation layer is on one side with a dimensionally stable support layer, e.g. a metallic or plastic part, and on the opposite side with an open-pore protective covering made of e.g. covered with a zinc alloy, which has low thermal insulation properties.

Ferner ist ein für Automobile verwendbarer Schalldämm-Verbund bekannt (DE-A-41 31 394), von dem eine Schicht aus einem luftdurchlässigen Faservlies eines Flächengewichts von weniger als 200 g/m² besteht, das an einer Seite mit einer Kernschicht aus wabenartig angeordneten Hohlräumen und Trennwänden verbunden und an der entgegengesetzten Seite mit einer Membranfolie abgedeckt ist. Abgesehen von hohem Fertigungsaufwand ist die Verformbarkeit beschränkt und besteht erhebliche Delaminierungsgefahr.Furthermore, a sound insulation composite that can be used for automobiles is known (DE-A-41 31 394), of which a layer consists of an air-permeable nonwoven fabric with a basis weight of less than 200 g / m 2, which has a core layer of honeycomb-like cavities on one side and partitions connected and covered on the opposite side with a membrane film. Apart from the high manufacturing costs, the deformability is limited and considerable Risk of delamination.

Ferner ist ein Bauteil bekannt (DE-A-38 41 187), bei dem zur Verbesserung der schalldämmenden Eigenschaften die Absorptionsschicht mit einer relativ dünnen biegeweichen Sperrschicht aus beispielsweise Polypropylen verbunden ist. Derartige schalldämmende Bauteile werden in Kraftfahrzeugen beispielsweise als Bodensäulenverkleidung im Innenraum verwendet.Furthermore, a component is known (DE-A-38 41 187), in which the absorption layer is connected to a relatively thin, flexible barrier layer made of, for example, polypropylene to improve the sound-insulating properties. Such sound-absorbing components are used in motor vehicles, for example, as floor pillar cladding in the interior.

Darüber hinaus ist es bekannt (DE-A 27 35 153), die Absorptionsschicht als Schaumstoffschicht auszubilden und mit einer Schwerschicht aus ebenfalls Schaum zu verbinden. Dieses Feder-Masse-System in Form einer Doppelmatte wird in Formen aufgeschäumt und als solcher Formkörper als Trennwand zwischen dem Motorraum und dem Fahrgastraum von Kraftfahrzeugen eingesetzt.In addition, it is known (DE-A 27 35 153) to design the absorption layer as a foam layer and to connect it with a heavy layer of foam as well. This spring-mass system in the form of a double mat is foamed into molds and used as such a molded body as a partition between the engine compartment and the passenger compartment of motor vehicles.

Schließlich ist es bekannt (DE-B 36 24 427), schallisolierende Trennwände von insbesondere Kraftfahrzeugen durch ein Isolationssystem zu bilden, bei dem zwischen einer Schwerschicht aus einem gefüllten Kunststoff und einem teppichartigen Material ein akustischer Entkoppler aus weichelastischem überwiegend offenporigen Material, wie Schaumstoff, Vlies oder Filz, angeordnet ist. Der Entkoppler ist als dünne Schicht mit einer Schichtdicke von etwa 5 mm ausgebildet und an der der Absorptionsschicht abgewandten Seite der Schwerschicht angeordnet.Finally, it is known (DE-B 36 24 427) to form sound-insulating partitions of motor vehicles in particular by means of an insulation system in which an acoustic decoupler made of a soft, elastic, predominantly open-pored material, such as foam, fleece, is used between a heavy layer made of a filled plastic and a carpet-like material or felt. The decoupler is designed as a thin layer with a layer thickness of approximately 5 mm and is arranged on the side of the heavy layer facing away from the absorption layer.

Der Erfindung liegt die Aufgabe zugrunde, einen schalldämmenden Bauteil der eingangs genannten Gattung auf einfache Weise hinsichtlich seiner Isolier- und Dämmeigenschaften zu verbessern. Dabei ist auch wünschenswert, den Verwendungs- bzw. Anwendungsbereich des schalldämmenden Bauteils insbesondere für den Hochbau und Installationen bei diesem zu erweitern. Ein weiterer Wunsch besteht in der besseren Entsorgbarkeit des Bauteils.The invention has for its object to improve a soundproofing component of the type mentioned in a simple manner in terms of its insulation and insulation properties. It is also desirable to use the soundproofing component, in particular for building construction and expand installations at this one. Another wish is that the component can be better disposed of.

Die Erfindung ist im Anspruch 1 gekennzeichnet und in Unteransprüchen sind weitere Ausbildungen derselben beansprucht.The invention is characterized in claim 1 and further embodiments of the same are claimed in subclaims.

Gemäß der Erfindung weist das Vlies der Absorptionsschicht eine wärme- bzw. kältedämmende Dichte zwischen insbesondere 5 und 150 kg/m³ auf. Vliese sind Textilverbundstoffe, die nicht durch Gewebe- oder Maschenbildung, sondern durch Verschlingung und/oder durch kohäsive und/oder adhäsive Verbindung von Textilfasern und/oder durch Vernadelung und/oder durch ein Air-Layer-Verfahren (durch Luft aufgewirbelt und dann lose geschichtete Fasern insbesondere mit Vorzugsausrichtung) hergestellt werden.According to the invention, the fleece of the absorption layer has a heat or cold insulation density between 5 and 150 kg / m³ in particular. Nonwovens are textile composites that are not created by weaving or knitting, but by intertwining and / or by cohesive and / or adhesive bonding of textile fibers and / or by needling and / or by an air layer process (whirled up by air and then loosely layered Fibers, in particular with a preferred orientation) are produced.

Bei einer insbesondere leicht biegbaren und daher als Wickelware herstellbaren Ausbildung der Erfindung beträgt die Dichte bzw. das Raumgewicht 5-40 kg/m³, insbesondere bis zu 20 kg/m³, während bei einer als biegesteife Preßplatte hergestellten Ausbildung der Erfindung das Raumgewicht bzw. die Dichte zwischen 10 und 150 kg/m³, insbesondere mehr als 50 kg/m³ beträgt.In the case of an embodiment of the invention that is particularly easy to bend and therefore can be manufactured as a wrap, the density or density is 5-40 kg / m³, in particular up to 20 kg / m³, while in an embodiment of the invention manufactured as a rigid press plate, the density or the Density between 10 and 150 kg / m³, in particular more than 50 kg / m³.

Das Vlies sollte eine Wärmeleitfähigkeit zwischen 0,03 und 0,07 W/mK aufweisen.The fleece should have a thermal conductivity between 0.03 and 0.07 W / mK.

Besonders bevorzugt werden Polyesterfasern, welche aus gesättigten linearen aliphatischen/aromatischen Polyestern gebildet sind, bzw. Fasern aus PET (Polyethylenterephtalat) oder PBT (Polybutylenterephtalat) für das Vlies verwendet. Auch Copolyesterfasern und BIKO- (Bikomponenten)- Fasern aus verschiedenen Polymeren sind anwendbar.Polyester fibers which are formed from saturated linear aliphatic / aromatic polyesters or fibers made from PET (polyethylene terephthalate) or PBT (polybutylene terephthalate) are particularly preferably used for the nonwoven. Copolyester fibers and BIKO (bicomponent) fibers made from different polymers can also be used.

Es empfiehlt sich, einen großen, wenn nicht den gesamten Faseranteil aus Hohlfasern zu bilden.It is advisable to have a large if not all of the fiber content to form from hollow fibers.

Es hat sich gezeigt, daß derartige schalldämmende Bauteile nicht nur einfach als Rollen- und Zuschnittsware herstellbar sind, sondern neben guten schalldämmenden, auch hervorragende thermische Isolierungs- und daher kälte- und wärmedämmende Eigenschaften zusätzlich zu schalldämpfenden Eigenschaften aufweisen.It has been shown that such sound-absorbing components are not only easy to produce as rolls and cut goods, but in addition to good sound-absorbing, also excellent thermal insulation and therefore cold and heat-insulating properties in addition to sound-absorbing properties.

Die Erfindung eignet sich daher besonders zur Schallund thermischen Isolation von Gebäuden, Rohrleitungen, Anlagen, stationären Maschinen und Containern einschließlich von Schallschutzkabinen, wie sie bevorzugt bei Meßräumen Anwendung finden. In Teilen dieser genannten Bereiche stellt die vorliegende Erfindung einen guten Ersatz der z.Zt. angewendeten Mineralfaserprodukte dar, was wegen der Karzinogenität von Mineralfasern aber eine erhebliche Verbesserung bei Herstellung, Anwendung und Entsorgung darstellt. Für Trittschalldämmzwecke sollte die Schichtdicke des Bauteils zwischen 1 und 4 cm betragen, während für übliche Wärmedämmzwecke dickere Bauteile zwischen 2 und 50 cm bevorzugt werden. Dabei wird die Schichtdicke zum weitaus überwiegenden Teil vom Vlies bestimmt, wogegen die Sperrschicht vergleichsweise dünn ist mit einer Dicke zwischen 0,1 bis 5 mm.The invention is therefore particularly suitable for sound and thermal insulation of buildings, pipelines, systems, stationary machines and containers, including soundproof booths, as are preferably used in measuring rooms. In parts of these areas, the present invention provides a good replacement for the currently. used mineral fiber products, which represents a significant improvement in production, application and disposal due to the carcinogenicity of mineral fibers. The layer thickness of the component should be between 1 and 4 cm for impact sound insulation purposes, whereas thicker components between 2 and 50 cm are preferred for conventional thermal insulation purposes. The layer thickness is largely determined by the fleece, whereas the barrier layer is comparatively thin with a thickness between 0.1 and 5 mm.

Im Falle der Verwendung auf dem Bausektor empfiehlt sich die Zumischung von unbrennbaren Fasern zu den Kunststoffasern und gegebenenfalls Zusatz von flammwidrigen Partikeln, darunter insbesondere Aluminiumhydroxid einer Korngröße zwischen 0,5 und 100 µm. Die Verwendung von Aluminiumhydroxid als flammwidrige Ausrüstung ist an sich bereits bekannt (Gummi, Asbest, Kunststoffe, 1978, Seiten 863-866). Es versteht sich, daß auch andere flammwidrige und feuerhemmende Zusätze, wie Phosphorverbindungen, anwendbar sind und das Vlies auch oberflächlich mit solchen Überzügen versehen sein kann, sofern die schalldämmenden Eigenschaften nicht wesentlich beeinträchtigt werden. Hierdurch wird der schalldämmende Bauteil mindestens nach der Brandklasse B2 ausgerüstet.In the case of use in the construction sector, it is advisable to add non-flammable fibers to the plastic fibers and, if appropriate, add flame-retardant particles, including in particular aluminum hydroxide with a particle size between 0.5 and 100 μm. The use of aluminum hydroxide as a flame-retardant finish is already known per se (rubber, asbestos, plastics, 1978, pages 863-866). It is understood that other flame retardant and fire retardant additives, such as phosphorus compounds, are applicable and the fleece can also be provided with such coatings on the surface, provided that the soundproofing properties are not significantly impaired. As a result, the soundproofing component is equipped at least according to fire class B2.

Für viele Anwendungsfälle empiehlt sich die Kombination des Vlieses mit einer Sperrschicht, welche Flüssigkeit und Dämpfe praktisch nicht zum Vlies hindurchläßt, wodurch dessen thermische und schallisolierende Eigenschaften nicht beeinträchtigt werden.For many applications it is advisable to combine the fleece with a barrier layer, which practically does not let liquid and vapors through to the fleece, so that its thermal and sound-insulating properties are not impaired.

Für manche Anwendungsfälle empfiehlt sich die oleophobe und/oder hydrophobe Ausrüstung des Vlieses. Auch bietet sich die Anwendung von Herbiziden und Insektiziden als Oberflächenschutz oder Einlagerung in der porösen Absorptionsschicht an, sofern dem nicht Entsorgungsprobleme entgegenstehen.For some applications, the oleophobic and / or hydrophobic finishing of the fleece is recommended. The use of herbicides and insecticides as surface protection or storage in the porous absorption layer is also suitable, provided that there are no disposal problems.

Die Sperrschicht besteht zweckmäßigerweise ebenfalls aus Polyester in Form einer Folie einer Schichtdicke zwischen 0,1 und 1 mm. Eine solche Dampfsperre kann auch aus Metall, insbesondere einer Aluminiumfolie, und sogar aus Trägerpapieren bestehen, sofern diese genügend als Dampfsperren ausgebildet sind. Dabei empfiehlt es sich, das Vlies nur an einer Seite mit der Sperrschicht abzudecken.The barrier layer expediently also consists of polyester in the form of a film with a layer thickness between 0.1 and 1 mm. Such a vapor barrier can also consist of metal, in particular an aluminum foil, and even of carrier papers, provided that these are sufficiently designed as vapor barriers. It is recommended to cover the fleece with the barrier layer on only one side.

In der Zeichnung sind bevorzugte Ausführungsbeispiele der Erfindung näher erläutert. Dabei zeigen:

Figur 1
eine thermisch und schallisolierende Baueinheit zur Verwendung als dachisolierender Bauteil in schematischer Darstellung;
Figur 2
eine Rohrisolierung in schematischer Darstellung und
Figur 3
eine Preßplatte gemäß der Erfindung in schematischer Darstellung.
Preferred exemplary embodiments of the invention are explained in more detail in the drawing. Show:
Figure 1
a thermal and sound insulating unit for use as a roof insulating component in a schematic representation;
Figure 2
a pipe insulation in a schematic representation and
Figure 3
a press plate according to the invention in a schematic representation.

Gemäß Figur 1 weist ein Vlies 1 mehr als 80% insbesondere zwischen 85 und 100% Polyesterfasern PES einer Faserlänge von mindestens 5 mm auf. Die Schichtdicke beträgt zwischen 0,2 und 20 cm und die Dichte bzw. das Raumgewicht beträgt zwischen 5 und 150 kg/m³. Die Kunststoffasern 1a aus PES sind entsprechend in im wesentlichen wirrer Verteilung angeordnet. Einseitig ist das Vlies 1 mit einer Sperrschicht 2 aus einer Polyesterfolie einer Schichtdicke von 0,1 und 1,0 mm abgedeckt, die in Figur 1 teilweise abgehoben dargestellt ist. Die Sperrschicht 2 kann auch eine Kaschierung mit einer textilen Schicht sein, um das Aussehen und/oder die Befestigung zu begünstigen. Die Kombination des Vlieses 1 mit der als Dampfsperre dienenden Sperrschicht 2 dient als Dachisolationsbauteil anstelle bisher üblicher Mineralwolle und Aluminiumbeschichtung. An einer Stirnseite steht ein Rand 2a der Sperrschicht 2 über das Vlies 1 über zum Verbinden mit anderen Bauelementen oder mit Nachbarbauteilen. Der Rand 2a kann z.B. 2 bis 10 cm breit sein.According to FIG. 1, a fleece 1 has more than 80%, in particular between 85 and 100%, polyester fibers PES with a fiber length of at least 5 mm. The layer thickness is between 0.2 and 20 cm and the density or density is between 5 and 150 kg / m³. The plastic fibers 1a made of PES are accordingly arranged in a substantially confused distribution. The fleece 1 is covered on one side with a barrier layer 2 made of a polyester film with a layer thickness of 0.1 and 1.0 mm, which is shown partially raised in FIG. 1. The barrier layer 2 can also be a lamination with a textile layer in order to promote the appearance and / or the fastening. The combination of the fleece 1 with the barrier layer 2 serving as a vapor barrier serves as a roof insulation component instead of the previously used mineral wool and aluminum coating. At one end, an edge 2a of the barrier layer 2 projects over the fleece 1 for connection to other components or to neighboring components. The edge 2a can e.g. 2 to 10 cm wide.

Gemäß Figur 2 ist das Vlies 1, das innen hohle Kunststoffasern 1 aus PES aufweist, derart biegbar, daß es bandagenartig außen um das Rohr 3 als thermische und auch schalldämmende Isolierung gelegt ist. Die Wickelware 10 stößt am Stoß 10a zusammen und bildet hierfür den ringförmigen Mantel um das Rohr 3. Eine alternative Ausführung dieses Anwendungsfalls besteht darin, daß dieser Rohrmantel als Formteil ausgebildet ist und an der Außenseite mit einer Aluminiumfolie kaschiert sein kann.According to FIG. 2, the fleece 1, which has hollow plastic fibers 1 made of PES on the inside, is bendable in such a way that it is placed like a bandage on the outside around the pipe 3 as thermal and also sound-insulating insulation. The winding material 10 collides at the joint 10a and for this purpose forms the annular jacket around the tube 3. An alternative embodiment of this application is that this tube jacket is designed as a molded part and can be laminated on the outside with an aluminum foil.

Gemäß Figur 3 ist das Vlies 1 wesentlich stärker verdichtet zu einem Raumgewicht bzw. einer Dichte zwischen insbesondere 50 und 150 kg/m³, so daß eine im wesentlichen biegesteife Preßplatte 11 entsteht, die bevorzugt zur Trittschalldämmung im Fußbodenbereich von Gebäuden verwendet wird und außer den Kunststoffasern 1a zusätzlich flammwidrige Partikel 4 aus Aluminiumhydroxid enthält. Das Produkt ist nicht hygroskopisch; es entstehen im Brandfall keine korrosiven oder giftigen Verbrennungsprodukte, so daß auch im Falle der Entsorgung keine Gefahr der Umweltschädigung entsteht, obwohl die Preßplatte 11 hierdurch den Bedingungen der Brandklasse B2a entsprechend flammwidrig ausgebildet ist. Auch ist eine Kaschierschicht aus textilen Schichtteilen als Sperrschicht 2 mit einem überstehenden Rand 2a auf dem Vlies 1 befestigt.According to FIG. 3, the fleece 1 is compressed much more strongly to a density or a density between in particular 50 and 150 kg / m³, so that a substantially rigid press plate 11 is formed, which is preferably used for impact sound insulation in the floor area of buildings and in addition to the plastic fibers 1a also contains flame-retardant particles 4 made of aluminum hydroxide. The product is not hygroscopic; there are no corrosive or toxic combustion products in the event of a fire, so that even in the event of disposal there is no risk of environmental damage, although the pressure plate 11 is thereby designed to be flame-retardant in accordance with the conditions of fire class B2a. A lamination layer made of textile layer parts is also attached to the fleece 1 as a barrier layer 2 with a projecting edge 2a.

Das erfindungsgemäße Bauteil wird vor allem als Hohlraum-Schalldämmung von z.B. Blindbalken bei Holzbalkendecken, Ständer-Wänden, abgehängten Decken, als Akustikelement, z.B. selbsttragende Dekoroberflächen für Rasterdecken, als mobile Schallschutz-Trennwand in z.B. Büros und als Zwischensperrendämmung angewendet.The component according to the invention is used primarily as cavity sound insulation of e.g. Blind beams for wooden beam ceilings, stud walls, suspended ceilings, as an acoustic element, e.g. self-supporting decorative surfaces for grid ceilings, as a mobile soundproofing partition in e.g. Offices and used as intermediate barrier insulation.

Claims (19)

Schallabsorbierendes und thermisch isolierendes Bauteil mit mindestens einer Schallwellen absorbierenden, porösen, Fasern aufweisenden Absorptionsschicht, die im wesentlichen aus einem Vlies aus vorwiegend Kunststoffasern (1a) besteht,
dadurch gekennzeichnet,
daß das Vlies (1) eine wärme- bzw. kältedämmende Dichte zwischen 5 und 150 kg/m³ aufweist.Sound-absorbing and thermally insulating component with at least one sound-wave-absorbing, porous, fiber-containing absorption layer, which essentially consists of a fleece made of predominantly plastic fibers (1a),
characterized by
that the fleece (1) has a heat or cold insulation density between 5 and 150 kg / m³. Bauteil nach Anspruch 1,
dadurch gekennzeichnet,
daß das Vlies (1) eine Dichte bis zu 20 kg/m³ aufweist.Component according to claim 1,
characterized by
that the fleece (1) has a density of up to 20 kg / m³. Bauteil nach Anspruch 1,
dadurch gekennzeichnet,
daß das Vlies (1) eine Dichte von mehr als 50 kg/m³ aufweist.Component according to claim 1,
characterized by
that the fleece (1) has a density of more than 50 kg / m³. Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Kunststoffasern (1a) mindestens vorwiegend aus Polyesterfasern (PES) bestehen.Component according to one of the preceding claims,
characterized by
that the plastic fibers (1a) consist at least predominantly of polyester fibers (PES). Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Vlies (1) unbrennbare Fasern aufweist.Component according to one of the preceding claims,
characterized by
that the fleece (1) has incombustible fibers. Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Vlies (1) mit flammwidrigen Partikeln (4) versehen ist.Component according to one of the preceding claims,
characterized by
that the fleece (1) is provided with flame-retardant particles (4). Bauteil nach Anspruch 6,
dadurch gekennzeichnet,
daß Aluminiumhydroxid für die flammwidrigen Partikel (4) mit einer Korngröße zwischen 0,5 und 100 µm verwendet ist.Component according to claim 6,
characterized by
that aluminum hydroxide is used for the flame-retardant particles (4) with a grain size between 0.5 and 100 microns. Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Vlies (1) oleophob und/oder hydrophob ausgerüstet ist.Component according to one of the preceding claims,
characterized by
that the fleece (1) is oleophobic and / or hydrophobic. Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Vlies (1) mit Insektiziden und/oder Herbiziden ausgerüstet ist.Component according to one of the preceding claims,
characterized by
that the fleece (1) is equipped with insecticides and / or herbicides. Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Vlies (1) mit einer für Flüssigkeiten und Dämpfe nicht durchlässigen Sperrschicht (2) verbunden ist.Component according to one of the preceding claims,
characterized by
that the fleece (1) is connected to a barrier layer (2) which is not permeable to liquids and vapors. Bauteil nach Anspruch 10,
dadurch gekennzeichnet,
daß die Sperrschicht (2) aus einer Polyesterfolie besteht.Component according to claim 10,
characterized by
that the barrier layer (2) consists of a polyester film. Bauteil nach Anspruch 10,
dadurch gekennzeichnet,
daß die Sperrschicht (2) aus einer Aluminiumfolie besteht.Component according to claim 10,
characterized by
that the barrier layer (2) consists of an aluminum foil. Bauteil nach Anspruch 11 oder 12,
dadurch gekennzeichnet,
daß die Sperrschicht (2) eine Foliendicke zwischen 0,1 und 1 mm aufweist.Component according to claim 11 or 12,
characterized by
that the barrier layer (2) has a film thickness between 0.1 and 1 mm. Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Vlies (1) eine Wärmeleitfähigkeit zwischen 0,03 und 0,07 W/mK aufweist.Component according to one of the preceding claims,
characterized by
that the fleece (1) has a thermal conductivity between 0.03 and 0.07 W / mK. Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Vlies (1) Hohlfasern in überwiegendem Anteil aufweist.Component according to one of the preceding claims,
characterized by
that the fleece (1) has hollow fibers in the majority. Bauteil nach einem der vorhergehenden Ansprüche,
gekennzeichnet durch
die Ausbildung als Wickelware (10).Component according to one of the preceding claims,
marked by
training as a wrap (10). Bauteil nach einem der Ansprüche 1-15,
gekennzeichnet durch
die Ausbildung als Preßplatte (11).Component according to one of claims 1-15,
marked by
training as a press plate (11). Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der als Wärmedämmung dienende Bauteil eine Schichtdicke zwischen 2 und 50 cm aufweist.Component according to one of the preceding claims,
characterized by
that the component used as thermal insulation has a layer thickness between 2 and 50 cm. Bauteil nach einem der Ansprüche 1-17,
dadurch gekennzeichnet,
daß der als Trittschalldämmung dienende Bauteil eine Schichtdicke zwischen 1 und 4 cm aufweist.Component according to one of claims 1-17,
characterized by
that the component used as impact sound insulation has a layer thickness between 1 and 4 cm.
EP95105020A 1994-05-17 1995-04-04 Thermal and acoustic insulating component Withdrawn EP0683280A1 (en)

Applications Claiming Priority (2)

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DE9408097U 1994-05-17
DE9408097U DE9408097U1 (en) 1994-05-17 1994-05-17 Soundproofing component

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