EP3390741A1 - Composite isolant comportant un composite marginal ouvert pour la diffusion - Google Patents

Composite isolant comportant un composite marginal ouvert pour la diffusion

Info

Publication number
EP3390741A1
EP3390741A1 EP16815808.7A EP16815808A EP3390741A1 EP 3390741 A1 EP3390741 A1 EP 3390741A1 EP 16815808 A EP16815808 A EP 16815808A EP 3390741 A1 EP3390741 A1 EP 3390741A1
Authority
EP
European Patent Office
Prior art keywords
insulation
composite according
insulation composite
insulating layer
diffusion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16815808.7A
Other languages
German (de)
English (en)
Inventor
Gabriele Gärtner
Frank Menzel
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.)
Evonik Operations GmbH
Original Assignee
Evonik Degussa 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 Evonik Degussa GmbH filed Critical Evonik Degussa GmbH
Publication of EP3390741A1 publication Critical patent/EP3390741A1/fr
Withdrawn legal-status Critical Current

Links

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
    • E04B1/76—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
    • E04B1/80—Heat insulating elements slab-shaped
    • E04B1/803—Heat insulating elements slab-shaped with vacuum spaces included in the slab
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/242—Slab shaped vacuum insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/10—Insulation, e.g. vacuum or aerogel insulation

Definitions

  • the invention relates to an insulation composite with diffusion-open edge bond.
  • a conventional insulation composite with a vapor-permeable insulation needs a diffusion-proof edge bond. This is intended to prevent water vapor from penetrating into the insulation composite and precipitating as condensate and also as ice formation. The consequences of this are microbial growth, as well as optical and mechanical destruction of the insulation composite.
  • the diffusion-proof edge bond simultaneously leads to a thermal bridge over the edge bond and thereby to an increased thermal conductivity. Thus, the edge bond has a negative effect on the damage safety and the life of the component.
  • WO2012 / 041823 A1 is a microporous, hydrophobic with organosilanes
  • Thermal insulation molded body described with a hydrophilic surface whose surface is partially or completely firmly bonded with an open-pored, hydrophilic layer or partially solid with an open-pored, hydrophilic layer or partially solid with an open-pored, hydrophilic layer and partially solid with a non-porous, hydrophilic layer.
  • DE-U-202004004187 discloses a vacuum insulation panel made of microporous silica or an airgel which is surrounded on at least one side edge by a frame. The frame is glued to the edges of the vacuum insulation panel.
  • WO2014 / 095277 discloses an insulation composite with three insulation layers, namely a centrally arranged vacuum insulation panel and a double-sidedly applied insulation panel
  • Thermal insulation panel based on pressed fumed silica.
  • the insulation composite is formed by two U-profiles, which enclose the insulation composite with their thighs.
  • the insulation composite can be provided on all sides with a U-profile, which adversely affects the thermal conductivity.
  • the insulation composite can also be equipped in particular with rectangular plates with only two U-profiles, which are each mounted on opposite sides, which reduces the mechanical stability of the insulation composite.
  • the object of the present invention was therefore to provide an insulation composite which remains dimensionally stable and weather-resistant in contact with water.
  • the invention relates to an insulation composite with a diffusion-open edge composite, comprising a plurality of gap-free laid consecutive plate-shaped layers comprising
  • insulating layer (1) in which a plurality of vacuum insulation panels, preferably with a thermal conductivity of 0.001 - 0.010 W / (m * K),
  • the webs (2) each consist of a non-capillary active, vapor-permeable, hydrophobic thermal insulation material with a thermal conductivity of at most 0.025 W / (m * K), preferably 0.010-0.025 W / (m * K) and
  • the determination of the thermal conductivity is carried out according to DIN EN 12667.
  • diffusion is defined as Sd -? 0.5 m, diffusion-inhibiting than
  • the sd value is the product of thickness of
  • Non-capillary means that the water absorption coefficient w of the material
  • a further embodiment of the invention provides that between the insulating layer (1) and cover layer (3) at least one further insulating layer (5) consisting of a
  • Thermal insulation board containing a non-capillary active, vapor-permeable, hydrophobic
  • Thermal insulation material is located.
  • the thermal insulation material of the webs and the thermal insulation board of the insulating layer (5) may contain, for example, a pyrogenic silica, a precipitated silica, an airgel, a polystyrene, a polyurethane or a polymethyl methacrylate as non-capillary active, diffusion-permeable, hydrophobic thermal insulation material.
  • Hydrophobic in the context of the invention is intended to include those materials which have inherently hydrophobic properties, as well as those obtained by a hydrophobic reaction of a hydrophilic material.
  • Particularly suitable is a hydrophobized fumed silica.
  • the starting material is a hydrophilic, fumed silica which is obtained by flame hydrolysis and is subsequently rendered hydrophobic.
  • flame hydrolysis a vaporized or gaseous hydrolyzable silicon halide is reacted with a flame formed by combustion of hydrogen and an oxygen-containing gas.
  • the combustion flame provides water for the hydrolysis of the silicon halide and sufficient Heat available for the hydrolysis reaction.
  • a silica produced in this way is called fumed silica. It is in the form of aggregates, which because of their
  • fumed silicas are ideal thermal insulators because the aggregate structure provides sufficient mechanical stability, minimizes heat transfer through solid state conductivity across the very small contact points within an aggregate, and produces sufficiently high porosity.
  • a plate is prepared which contains the hydrophilic, fumed silica. This is subsequently rendered hydrophobic under reduced pressure or overpressure.
  • hydrophobing preference is given to using organosilanes which react with the silanol groups of the hydrophilic constituents of the thermal insulation mixture.
  • Organosilanes are R n -Si-X 4 -n, RsSi-Y-SiRs, RnSinOn, (CH 3 ) 3-Si- (O-Si (CH 3 ) 2) n-OH,
  • the plate further preferably contains IR opacifiers and stabilizing, inorganic fibers, for example glass fibers.
  • IR opacifiers are titanium oxides, zirconium oxides, ilmenites, iron titanates, iron oxides, zirconium silicates, silicon carbide, manganese oxides, graphites and / or carbon blacks.
  • the particle size of the opacifier is usually between 0, 1 and 25 ⁇ .
  • the mean particle diameter d 50 is preferably 1 to 10 ⁇ m, more preferably 2 to 8 ⁇ m.
  • the proportion in the thermal insulation panel of hydrophobic silica is preferred
  • the insulation composite according to the invention has two cover layers (3) made of a non-capillary-active, diffusion-inhibiting or diffusion-tight material.
  • This material can be made of sheet metal, aluminum, stainless steel, polymethylmethacrylate, ceramic or glass, for example.
  • the cover layer should have sufficient rigidity to ensure the mechanical stability of the insulation composite.
  • the cover layer should have a thickness of at least 0.5 mm.
  • the cover layer (4) consists of several layers. It is also possible to provide a capillary-active, diffusion-inhibiting or diffusion-open side on the side facing away from the insulating layer (1) with a non-capillary-active, diffusion-inhibiting or diffusion-tight material on the side facing the insulating material. If this material has sufficient mechanical stability, the non-capillary-active, diffusion-inhibiting or diffusion-tight layer can then be designed as a very thin layer, smaller than 0.5 mm, on the side facing the insulating layer.
  • natural stone or exposed concrete may be mentioned as a vapor-permeable, capillary-active layer on the the insulating material side facing are provided with a two-component epoxy resin coating.
  • the anchors of the insulation composite according to the invention are preferably made of materials having a thermal conductivity of less than ⁇ 0.035 W / (m * K), for example made of carbon or glass fiber reinforced plastic.
  • Another object of the invention is the use of the invention
  • Insulation composite in the insulation of a building envelope comprising facades, roofs, ceiling doors, prefabricated facade elements, prefabricated houses, a vehicle shell comprising cars, trucks, aircraft, helicopters, ships, spaceships, of transport and storage containers for temperature-sensitive goods.
  • Figure 1 shows a sketch of the insulation composite according to the invention with insulation layer with VIP (1), webs (2), cover layer (3), anchor (4) and optional insulation layer (5).

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Thermal Insulation (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne un composite isolant comportant un composite marginal ouvert pour la diffusion, constitué de plusieurs couches en forme de plaques, directement posées les unes après les autres, comprenant a) au moins une couche isolante (1) présentant une pluralité de panneaux isolants sous vide espacés les uns des autres de tous côtés par des entretoises (2) constituant le bord de la couche isolante (1), les entretoises étant composées d'un matériau isolant thermique hydrophobe, ouvert pour la diffusion, capillairement inactif, ayant une conductivité thermique maximale de 0,025 W/(m*K), b) deux couches de couverture (3) en matériau étanche à la diffusion ou bloquant la diffusion, capillairement inactif, et c) une pluralité d'ancres (4) disposés sur les couches de couverture, reliant à force les deux couches de couverture et traversant la couche isolante (1) au niveau des entretoises.
EP16815808.7A 2015-12-17 2016-12-14 Composite isolant comportant un composite marginal ouvert pour la diffusion Withdrawn EP3390741A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015225714.2A DE102015225714A1 (de) 2015-12-17 2015-12-17 Isolationsverbund mit diffusionsoffenem Randverbund
PCT/EP2016/080955 WO2017102819A1 (fr) 2015-12-17 2016-12-14 Composite isolant comportant un composite marginal ouvert pour la diffusion

Publications (1)

Publication Number Publication Date
EP3390741A1 true EP3390741A1 (fr) 2018-10-24

Family

ID=57589017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16815808.7A Withdrawn EP3390741A1 (fr) 2015-12-17 2016-12-14 Composite isolant comportant un composite marginal ouvert pour la diffusion

Country Status (3)

Country Link
EP (1) EP3390741A1 (fr)
DE (1) DE102015225714A1 (fr)
WO (1) WO2017102819A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6952764B2 (ja) 2016-07-29 2021-10-20 エボニック オペレーションズ ゲーエムベーハー 疎水性の断熱材料の製造方法
MX2019008516A (es) 2017-01-18 2019-09-18 Evonik Degussa Gmbh Material de aislamiento termico granulado y procedimiento para producirlo.
DE102017209782A1 (de) 2017-06-09 2018-12-13 Evonik Degussa Gmbh Verfahren zur Wärmedämmung eines evakuierbaren Behälters
EP3597615A1 (fr) 2018-07-17 2020-01-22 Evonik Operations GmbH Matériau d'oxyde mixte granulaire et composition d'isolation thermique sur sa base
JP7086266B2 (ja) 2018-07-18 2022-06-17 エボニック オペレーションズ ゲーエムベーハー シリカをベースとする成形断熱体を周囲圧力で疎水化する方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2754956A1 (de) * 1977-12-09 1979-06-13 Gruenzweig Hartmann Glasfaser Waermedaemmplatte
WO2003023157A1 (fr) 2001-09-05 2003-03-20 Franz Feldmeier Panneau a element sous vide pour constructions de parois exterieures
DE10359005A1 (de) * 2003-12-15 2005-07-14 Va-Q-Tec Ag Verbundwärmedämmplatte
DE202004004187U1 (de) 2004-03-16 2005-05-04 Porextherm-Dämmstoffe Gmbh Vakuum-Isolations-Paneel
DE102009054432A1 (de) * 2009-11-25 2011-05-26 Ewald Dörken Ag Wärmedämmsystem für eine Gebäudehülle
FI9203U1 (fi) * 2010-05-31 2011-05-12 Vicover Oy Eriste-elementti
DE102010046684A1 (de) 2010-09-27 2012-03-29 Günter Kratel Stabilisierter Wärmedämmformkörper mit hydrophoben, mikroporösem Dämmstoffkern und hydrophiler Oberfläche
RU2579844C2 (ru) 2011-07-27 2016-04-10 Эвоник Дегусса Гмбх Способ изготовления гидрофобных теплоизоляционных формованных изделий
DE102012224201A1 (de) 2012-12-21 2014-07-10 Evonik Industries Ag Vakuumisolierende Fassadenplatte mit verbesserter Handhabbarkeit

Also Published As

Publication number Publication date
DE102015225714A1 (de) 2017-06-22
WO2017102819A1 (fr) 2017-06-22

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