EP1053543B1 - Element d'isolation multicouche - Google Patents

Element d'isolation multicouche Download PDF

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Publication number
EP1053543B1
EP1053543B1 EP99967927A EP99967927A EP1053543B1 EP 1053543 B1 EP1053543 B1 EP 1053543B1 EP 99967927 A EP99967927 A EP 99967927A EP 99967927 A EP99967927 A EP 99967927A EP 1053543 B1 EP1053543 B1 EP 1053543B1
Authority
EP
European Patent Office
Prior art keywords
layers
foam
layer
insulating element
element according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99967927A
Other languages
German (de)
English (en)
Other versions
EP1053543A1 (fr
Inventor
Rainer Arndt
Hans-Rudolf Czerny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illbruck GmbH
Airbus Operations GmbH
Original Assignee
Illbruck GmbH
Airbus Operations 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 Illbruck GmbH, Airbus Operations GmbH filed Critical Illbruck GmbH
Publication of EP1053543A1 publication Critical patent/EP1053543A1/fr
Application granted granted Critical
Publication of EP1053543B1 publication Critical patent/EP1053543B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E04B1/88—Insulating elements for both heat and sound
    • E04B1/90—Insulating elements for both heat and sound slab-shaped
    • 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
    • E04B2001/742—Use of special materials; Materials having special structures or shape
    • E04B2001/747—Corrugated materials
    • 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
    • E04B1/82—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 sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E04B2001/8471—Solid slabs or blocks layered with non-planar interior transition surfaces between layers, e.g. faceted, corrugated
    • 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
    • E04B1/82—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 sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling

Definitions

  • the invention relates to a multi-layer insulation element according to the features of the preamble of claim 1.
  • Such insulation elements are already known in various forms. These However, they are different in terms of various requirements should not be satisfactory in every respect. These requirements include high sound absorption and / or Sound insulation, the particular curve characteristics in terms of a Sound absorption curve and a sound insulation curve in one Frequency band between 10 and 20,000 Hz allows. A high thermal insulation and low liquid water formation at high temperature gradients and large air humidity gradient, this also possibly combined with comparatively low basis weights and good handling as a built-in element.
  • the invention therefore deals with the task of specifying an insulating element of the type in question, which is characterized by a high fulfillment of one or more of the beginning specified requirements.
  • a foam layer of uneven, three-dimensionally structured polyimide foam and the layers are enveloped by an outer film layers forming film, which outer film layers are edge welded and thereby hold together the overall composite.
  • an insulation element is provided which is characterized by a low weight with a comparatively large volume.
  • This polyimide foam layer is structured in such a way that, when viewed in plane extension, it faces in a third dimension, ie facing the nonwoven layer superior to this layer or, for example, facing away from this layer of nonwoven layer, by means of area-wise elevations. These can be further formed, for example, by undulations or small pimples or formations.
  • a mold-foamed polyimide foam can continue to be used.
  • the formed on an upper surface uneven structure of the polyimide foam can also be found on the bottom in the negative, so that according to the invention both surfaces are uneven, three-dimensionally structured, to increase the total surface of the foam layer.
  • the invention also relates to a multi-layer insulation element with two foam layers, which are provided in layers arranged one above the other, which is here according to the invention aimed that a foam layer consists of uneven, three-dimensionally structured polyimide foam.
  • the optional layer structure ie nonwoven layer with foam layer or two foam layers, is provided in a preferred embodiment of the subject invention that the foam layer consists of a cut foam.
  • the foam layer runs zig-zag, wherein this course is formed in plane extension of the foam layer. Consequently, the elevations formed by the zig-zag shape extend in the direction of the layer arranged above and / or below.
  • the layer (nonwoven layer or further foam layer) arranged above and / or below the foam layer formed according to the invention is spaced from the polyimide foam layer, thus forming approximately V-shaped cavities in the gusset of the zig-zag shape in cross section.
  • a desired sound absorption behavior is set via the thickness and / or the angle profile with respect to the vertical of the zig-zag webs.
  • the sound absorption behavior in the course of the production of the foam layer according to the invention by the choice of the material thickness and / or the course of the zig-zag structure can be preset.
  • the foam layer is covered on top and bottom of a nonwoven layer. This may in each case be a needled, compressed or mechanically consolidated nonwoven.
  • melofil fibers may also be used here in a proportion of 10-70%, preferably 50%. It is also conceivable to form the upper, preferably the noise source facing nonwoven layer as a melt-blown web and the lower layer as a thermally bonded volume fleece.
  • a mixture of melamine fibers and basefoil fibers to produce a three-dimensional framework.
  • the uneven, three-dimensionally structured, preferably zig-zag-shaped polyimide foam layer top and bottom sides with a flat, relative to the structured foam layer relatively thin polyimide foam layer is covered.
  • two foam layers may be provided, between which a nonwoven layer is provided.
  • both layers of foam according to the previously described embodiments are uneven, structured in three dimensions as polyimide foam layers and the intermediate nonwoven layer is a melt-blown nonwoven.
  • the layers of the insulation element are further surrounded by a film.
  • this wrapping film consists of two film layers, which are more preferably outer layers. These film layers encase the stacked insulation layers to form a compact, multi-layer insulation element.
  • the film layers can also be provided as intermediate layers.
  • the outer films are more preferably edge welded, but the nonwoven and / or foam layers can be integrated with all or some of the weld, for example by a close to zero edge-bonded nonwoven and / or foam layers. Such edge compaction can also be used for component molding. Also, fasteners can be integrated into such a weld.
  • the assembly of the outer films is suitably such that the total composite are held together solely by the edge-welded films and possibly fleece and / or foam layers.
  • An adhesive, lamination or the like of the individual layers is not required and preferably not provided.
  • the layers are - at least outside the edge area - just superimposed. It results as it were a pillow with a shell formed by the outer films. Partial densifications brought about by welding, in particular in the edge region, can contribute to the reception of fastening elements and / or stiffenings of the component.
  • the multiple layers (fleece and / or foam layers) lead to a kind of impact filling. It is also important for the article that the formation of liquid water in the component is reduced.
  • the films used, both the outer films as well as optionally between films have different water permeability, preferably water vapor permeable membrane films are used.
  • films which have directionally active water vapor permeabilities It is also possible to use films which have moisture and / or temperature-dependent water vapor permeabilities. Furthermore, these films may also be fiber-reinforced, it being further preferred in this regard to provide these fibers on the inside of the film.
  • an insulation element 1 which consists of a lower and an upper Outer foils 2 and 3 and three central layers 4, 5 and 6 exists.
  • the newly formed nonwoven layers 4 and 6 are formed of similar or non-similar nonwoven material.
  • the fibers of the nonwoven material consist of a polymer, such as. PPS or a mixture of PPS and copolyester and other organic or inorganic fibers, wherein the basis weights of the nonwoven layers 4 and 6 are between 50 and 800 g / m 2 .
  • the upper, preferably a noise source facing nonwoven layer 6 consist of a melt-blown nonwoven and the lower nonwoven layer 4 of a thermally bonded volume fleece and / or a foam layer.
  • the fibers are thermoplastic and inherently flame retardant.
  • the granules from which the nonwoven fibers were obtained be, have a certain melt viscosity on.
  • the fleeces are also hydrolysis resistant. moreover they are acoustically absorbent and insulating. About that In addition, they have a heat-insulating effect. You can also be equipped intumescent to the fire behavior (cheap) to influence.
  • the middle layer 5 is as Polyimide foam layer formed which, as in particular from the sectional view in FIG. 2 to recognize, uneven, three-dimensionally structured. Specifically, the training is chosen so that the foam layer runs in zig-zag shape in plane extent. By choosing a polyimide foam is one with comparatively large volume very lightweight Central position for the formation of the insulation element 1 created.
  • the foam layer consists of a tailored Polyimide foam, wherein by the thickness and / or the angle to the vertical of the zig-zag webs. 7 a desired Schallabsorbtions adjustable is.
  • a Material thickness d selected from about 8 mm, at an overall height h the zig-zag-shaped foam layer 5 of approx 24 mm. It is thus a ratio of material thickness d set to layer height h of about 1: 3.
  • One more preferred material thickness d is 35 mm, at a height h of 60 mm; this gives a ratio of 1: 1.7
  • an angle alpha of the webs 7 to the vertical selected from 45-60 °, for example 55 °.
  • the thicknesses of nonwoven layers 4 and 6 are -in not compressed state - about one third to one tenth the thickness of the middle layer (foam layer 5).
  • the Thickness of the nonwoven layers 4 and 6 are in absolute terms in the Range of 0.5 to 5 mm.
  • the film layers 2 and 3 are fiber-reinforced films of very small thickness.
  • the thickness is between 10 and 50 microns, preferably at 20 microns.
  • the density is about 0.9 to 1.4 g / cm 3 .
  • the films are also thermoplastic and hydrolysis resistant. In particular, they also have matched water vapor permeabilities.
  • Fibers 9 can be inherently flame retardant Polymers act.
  • fibers for example, glass fibers, but also be laminated melamine resin fibers.
  • fibers 9 are shown in Fig. 1 by a grid on the lower outer film layer 2 indicated.
  • the cross-over arrangement the fibers 9 exaggerated to scale.
  • the fibers 9 are only one side of the Foil provided.
  • the grid is between about 1 and 5 mm. They are each transverse to each other Fibers provided.
  • the outer film layers 2, 3 are edge-welded, wherein beyond the illustrated embodiment also the integration of the fleece and / or foam layers 4 to 6 all or part of the weld 10 It is conceivable, this through about one to near zero outgoing edge compaction of the fleece and / or foam layers 4 to 6.
  • the edge compaction can be used for component molding become. Also, fasteners can be in such Weld 10 are integrated.
  • the whole group is alone by the randverbundenen or edge-welded foils 2, 3, optionally by incorporating the fleece and / or foam layers 4 held together until 6.
  • the layers 4 to 6 are - at least outside the edge region just superimposed. It results as it were a pillow with a through the outer film 2, 3 formed envelope.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Microwave Amplifiers (AREA)

Claims (11)

  1. Elément d'isolation multicouches, ayant une couche de non-tissé (4 ou 6) et une couche de matière en mousse (5) ou deux couches de matière en mousse, lesdites couches étant prévues en strates disposées l'une sur l'autre, caractérisé en ce qu'une couche de matière en mousse (5) se compose d'une matière en mousse de polyimide structurée inégalement, en trois dimensions et en ce que les couches (4 ou 6, 5) sont entourées d'une feuille, formant des couches de feuilles externes, qui se compose de couches de feuilles (2, 3), et en ce que les couches de feuilles externes sont soudées à la périphérie et maintiennent ainsi le composite entier.
  2. Elément d'isolation multicouches selon la revendication 1, caractérisé en ce que la couche de matière en mousse (5) a un profil en zig-zag.
  3. Elément d'isolation multicouches selon la revendication 2, caractérisé en ce qu'il se forme des espaces creux à peu près en forme de V dans les pics du profil en zig-zag, dans la section transversale.
  4. Elément d'isolation multicouches selon l'une des revendications 1 à 3, caractérisé en ce qu'une couche de matière en mousse (5) se compose d'une matière en mousse coupée.
  5. Elément d'isolation selon l'une des revendications 2 à 4, caractérisé en ce que, par l'épaisseur (d) et/ou l'amplitude de l'angle (angle alpha) par rapport à la verticale du pic en zig-zag (7), un comportement d'absorption phonique souhaité est ajusté.
  6. Elément d'isolation selon l'une des revendications 1 à 5, caractérisé en ce que la couche de matière en mousse (5) est recouverte sur la face inférieure et la face supérieure par une couche de non-tissé (4, 6).
  7. Elément d'isolation selon l'une des revendications 1 à 6, caractérisé en ce que, dans le cas de l'existence de deux couches de matière en mousse (5), une couche de non-tissé (4) est prévue entre les couches de matière en mousse (5).
  8. Elément d'isolation selon l'une des revendications 1 à 7, caractérisé en ce que les couches de feuilles (2, 3) sont des feuilles de membrane perméables à la vapeur d'eau.
  9. Elément d'isolation selon l'une des revendications 1 à 8, caractérisé en ce qu'une feuille (2) est renforcée de fibres.
  10. Elément d'isolation selon la revendication 9, caractérisé en ce que les fibres (9) sont prévues sur la face interne de la feuille (2, 3).
  11. Elément d'isolation selon l'une des revendications 1 à 10, caractérisé en ce que, par l'épaisseur et/ou le poids surfacique et/ou l'épaisseur et/ou la matière de la feuille, le comportement d'isolation phonique de l'élément d'isolation est ajusté par rapport à une mesure d'isolation phonique déterminée.
EP99967927A 1998-12-07 1999-12-06 Element d'isolation multicouche Expired - Lifetime EP1053543B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19856377 1998-12-07
DE19856377A DE19856377A1 (de) 1998-12-07 1998-12-07 Mehrlagiges Isolationselement
PCT/EP1999/009509 WO2000034943A1 (fr) 1998-12-07 1999-12-06 Element d'isolation multicouche

Publications (2)

Publication Number Publication Date
EP1053543A1 EP1053543A1 (fr) 2000-11-22
EP1053543B1 true EP1053543B1 (fr) 2005-02-02

Family

ID=7890238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99967927A Expired - Lifetime EP1053543B1 (fr) 1998-12-07 1999-12-06 Element d'isolation multicouche

Country Status (6)

Country Link
EP (1) EP1053543B1 (fr)
AT (1) ATE288612T1 (fr)
CA (1) CA2319355A1 (fr)
DE (2) DE19856377A1 (fr)
ES (1) ES2237964T3 (fr)
WO (1) WO2000034943A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20213228U1 (de) * 2002-08-23 2002-10-31 Carcoustics Tech Ct Gmbh & Co Mehrlagiges Schall- und Wärmeisolationsteil
DE202004005948U1 (de) * 2004-04-13 2005-08-25 Carcoustics Tech Center Gmbh Sandwichartig aufgebauter Luftschallabsorber
US8899519B2 (en) 2011-03-15 2014-12-02 The Boeing Company Method and system for insulating frame member
US8662448B2 (en) 2011-06-06 2014-03-04 The Boeing Company System and method for insulating frame member
CN103903608B (zh) * 2012-12-27 2018-12-25 浙江艾迪雅汽车部件新材料有限公司 一种高效隔音材料及其制作方法
CN106223537B (zh) * 2016-08-30 2018-11-16 广东裕铧建材有限公司 隔断板
CN109836773B (zh) * 2017-11-27 2020-08-18 海洋化工研究院有限公司 一种水下声学复合材料及制造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4690847A (en) * 1986-06-26 1987-09-01 Burlington Industries, Inc. Cold weather garment structure
DE9414943U1 (de) * 1994-09-14 1996-01-18 M. Faist GmbH & Co KG, 86381 Krumbach Folienresonanzabsorber
DE19616340C2 (de) * 1996-04-24 1999-12-30 Freudenberg Carl Fa Schallschutzelement sowie ein Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
EP1053543A1 (fr) 2000-11-22
ATE288612T1 (de) 2005-02-15
WO2000034943A1 (fr) 2000-06-15
DE59911555D1 (de) 2005-03-10
CA2319355A1 (fr) 2000-06-15
DE19856377A1 (de) 2000-06-08
ES2237964T3 (es) 2005-08-01

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