WO2011020671A1

WO2011020671A1 - Insulation panel made of plastics, system and method for heat insulation

Info

Publication number: WO2011020671A1
Application number: PCT/EP2010/060548
Authority: WO
Inventors: Stephan Nicolay; Matthias Seiler; Markus Schackmann; Carlo SCHÜTZ
Original assignee: Evonik Röhm Gmbh
Priority date: 2009-08-20
Filing date: 2010-07-21
Publication date: 2011-02-24

Abstract

The present invention relates to an insulation panel made of plastics for producing an insulation system, the insulation panel made of plastics comprising at least one insulating layer. The present invention further relates to an insulating system and method.

Description

Plastic insulation board, system and method for

thermal insulation

Field of the invention

The present application relates to an insulating board made of plastic for producing an insulation system. An increasing scarcity of fossil fuels and the resulting cost increases are leading to increased investments in the field of fossil fuels

Energy saving and the use of sustainable

Energy resources. The air conditioning of buildings is currently for a high proportion of

Total energy consumption is the cause. Accordingly, many efforts have been made to reduce the consumption caused thereby.

State of the art

Usually, therefore, materials are used in the construction of buildings for insulation, which often also subsequently

Facades can be attached. For example

describes the document DE 25 07 000 Al such facade cladding. A disadvantage of this

Facade cladding is their complex installation. Furthermore, ventilated cladding is often used on buildings because of their physical properties. An example of such

Facade cladding is set out in DE 100 22 615 A1. The cladding described must also be mounted in several steps on the building. This assembly is associated with a high workload.

Accordingly, composite panels have been developed that can be mounted to a façade in one step, without the need to subsequently apply a plaster.

Such plates are for example in

DE 197 13 542 Al, DE 41 31 511 Al and DE 39 13 383 Al described. The composite panel may be provided in its construction with a rear ventilation. These composite panels can be easily processed and assembled.

In addition, from DE 89 15 270 Ul, EP 0 382 084 A2, DE 197 36 768 Al, DE 199 54 955 Al, DE 299917402 Ul and WO 2005/033432 Al hollow chamber plates are known which

For example, for the production of greenhouses or as a construction material for the production of

Plastic glazings can be used. These plates have an insulating effect, which is achieved in particular by an enclosed gas, usually air. To maximize the insulation, the gas trapped in this layer should have as little contact with the

Ambient air and have a low convection. According to the teaching of document DE 197 36 768 A1,

DE 199 54 955 A1, DE 299917402 U1 and WO 2005/033432 A1 The cavities, for example, with insulation

filled so as to improve the thermal insulation.

The use of air to insulate buildings is described inter alia in WO 97/30316 A1. This air is through a complex system to a certain

Temperature heated and led in a layer through the wall of a building. The air-bearing layer can be taken into account, among other things, during the construction of the building.

Task and solution

In view of the prior art, it is an object of the present invention to provide a plastic insulating board for the production of a Dämmungsystems available, which has an excellent property profile and the disadvantages of the plates of the prior art, or only to a reduced extent.

In a special task, the insulation board should

Plastic have an excellent insulation effect and be designed so that it is able to absorb high utility and traffic loads.

In a next task, the insulation board should be off

Plastic be designed so that it is able to record high utility and traffic loads with the lowest possible substructure. The insulation board should thus to enable as much architectural and creative freedom as possible.

A specific object of the present invention was to provide plastic insulation boards which, when the outer plastic layer is damaged, have no reduction in the insulating effect.

Finally, there was a special task in it

Plastic insulation board to provide the extreme

Weather conditions and still manages with as little insulation.

A further object can be seen, in particular, to provide plastic insulating panels which can be easily and simply assembled and processed. For installation, in particular, low-skilled persons should be able to be used. Furthermore, the insulation board made of plastic should be inexpensive to produce.

Here, the insulation system, and thus the

Plastic insulating board used to make this

Systems are used, have a long life without continuously high maintenance and

Maintenance measures are necessary. Accordingly, the system, especially the insulation board should be off

Plastic have a high weather resistance, in particular a high UV resistance. These and other tasks which are not explicitly mentioned, but which can be readily deduced or deduced from the contexts discussed hereinbelow, are solved by means of a plastic insulating panel with all of them

Features of the first claim. expedient

Modifications of the insulation board according to the invention

Plastic are provided in subclaims under protection.

The subject of the present invention is accordingly an insulating board made of plastic, which thereby

is characterized in that

they comprise at least one insulating layer or

consisting of an airgel and a plastic web plate,

that the multi-web plate is designed such that it has a mean distance of the non-crossed webs of at least 20 mm, and

that the web plate corresponds to the following formula

F [N / m ² ]> 95 [N / (m ² * mm)] * d _Pi [mm] where

dpi stands for the thickness of the insulation board in mm

F is the failure load of the plate in N / m ² at one

Transverse support distance of 3 m and a projection of the plate on the side rail profile of 15 mm corresponds. Failure means that the plate either breaks or becomes so Bends that from the supports

slips off.

This makes it possible in an unpredictable way to provide an insulating board made of plastic for insulation available, which has an excellent property profile.

In particular, an insulating board made of plastic for

Provided, which compared to plates

Glass, has a low weight. Due to the special multi-web plate and the resulting very stable shape design, the plastic insulation boards according to the invention are suitable as a structural element, which traffic loads such. Can absorb wind and snow loads. It was thus for the first time in a lightweight insulating board made of plastic good structural and insulating properties combined. The large distance of the webs reduces the number of

Thermal bridges and thus improves the

Thermal insulation properties. Furthermore, this chamber sizes are ensured, which allow a simple and effective filling with the airgel. Too small bridge distances or constructions with - caused by the web arrangement - angled or too small chambers can be filled only difficult or incomplete. This is z. B. in constructions with crossed bars of the case where a

Square field in four small triangular fields

is difficult to fill completely are. The insulation boards according to the invention therefore preferably have an average web spacing of the non-crossed webs of at least 25 mm, particularly preferably 30 to 100 mm, very particularly preferably 30 to 70 mm and especially preferably 30 to 50 mm.

The large web distance causes a reduction in the mechanical stability of the insulation boards according to the invention. Therefore, the web multiple plate by the corresponding number of webs, the selection of the plastic material or the thickness of the straps of the web plate is designed such that the web plate corresponds to the following formula F [N / m ² ]> 95 [N / (m ² * mm )] * d _Pi [mm], preferably F [N / m ² ]> 100 [N / (m ² * mm)] * dpi [mm], more preferably F [N / m ² ] ≥ 110 [N / ( m ² * mm)] * d _Pi [mm] and most preferably F [N / m ² ]> 120 [N / (m ² * mm)] * d _Pi [mm], where F and d _{Pi are} the above Correspond to definitions.

In the context of the present invention, "straps" are understood to mean the individual plates of the ribbed multiple plate, ie the two outer plates and the plates located therebetween A bar quadruple plate thus consists of two outer straps and two inner straps, which are connected to one another by webs Between the straps are each the

Chamber layers off. In a special embodiment, the subject of the present invention are insulating boards made of plastic

containing a multi-web plate of at least three, preferably 4 to 8, interconnected by webs straps, wherein the multi-web plate is designed such that after attachment to the building at least the most viewed from the building chamber layer, preferably at least the two outermost chamber layers and / or from Seen from the innermost chamber layer are not or only partially filled with insulating material. Preferably, these layers are not filled with insulating material, in particular not filled with airgel.

The embodiment with the unfilled outermost layers has the advantage that in case of damage to the outermost straps of the web multiple plate moisture does not penetrate into the insulating material, i. the insulation-containing layers remain sealed. This does not lead to a loss of insulation even with damage to the plate. The insulation boards can thus also

Constructions are used where unwanted

mechanical effects on the plate are to be feared.

The embodiment with the unfilled inner layer has the advantage of easier attachment, z. B. by undercut dowel without the sealing of the insulating material-containing layer is impaired. The plastic insulation boards according to the invention can therefore be easily and easily assembled and processed. For assembly, in particular, low-skilled persons can be used. Furthermore, the insulation board made of plastic is inexpensive to produce. The insulation board made of plastic continues to offer a high

Weather protection. In addition, the plastic insulation board can meet specific needs regarding

mechanical stability, insulation effect and noise protection effect.

Here, the system, and thus the insulating board made of plastic, which are used for the production of this, a long life, without continuously high maintenance and repair measures are necessary.

Accordingly, the plastic insulating board according to the present invention shows a high

Weather resistance, in particular a high UV resistance.

The plastic insulating board according to the present invention may be an internal or external cladding of structures or wall parts of structures (such as greenhouses). Preferably, it is a façade, roof or wall panel.

The plastic insulating board of the present invention comprises a multi-web plate and possibly further

Components of plastic, in particular of one

thermoplastic. By this configuration It is surprisingly possible to provide a very cost-effective and efficient insulation system.

Preferably, the insulation board comprises plastic

at least 2 wt .-%, preferably at least 10 wt .-% and particularly preferably at least 20 wt .-% plastic. According to a particular embodiment of the present invention, the plastic content of the plastic insulating panel may be at least 50% by weight, preferably at least 80% by weight and more preferably at least 95% by weight.

The plastic contained in the insulation board made of plastic can be selected depending on the application. To the

preferred plastics include polyolefins, in particular polypropylene (PP), polyethylene (PE) and / or cycloolefinic copolymers (COC),

Polyalkylene (meth) acrylates, in particular

Polymethyl methacrylate (PMMA), poly (meth) acrylimides (PMMI), polycarbonates (PC), polyisocyanates, polyoxyalkylenes, in particular polyoxymethylene (POM), polyesters, in particular polyethylene terephthalate (PET), polybutylene terephthalate (PBT) and / or polyethylene-2, 6- naphthalate (PEN);

Polyether ketones, in particular polyetheretherketone (PEEK), polyethersulphones (PES), polysulphones (PSU),

Polyphenylene sulfides, polyvinyl chlorides, polystyrenes (PS), polyamides (PA), polyurethanes and / or polyimides (PI).

Furthermore, it is also possible to use copolymers which have two or more repeating units from which the polymers set forth above are constructed. These include in particular styrene-acrylonitrile (SAN), acrylic ester-styrene-acrylonitrile (ASA) and acrylonitrile-butadiene-styrene Polymers (ABS). These polymers can be used individually or as a mixture of two, three or more plastics (blends). Very particularly preferred are in

Frame of the present invention

Polyalkylene (meth) acrylates, in particular

Polymethyl methacrylate (PMMA), or copolymers containing polyalkylene (meth) acrylates, in particular

Polymethyl methacrylate (PMMA) and at least one of the comonomers mentioned above for the copolymers used.

The plastics may in this case conventional additives,

For example, UV stabilizers, UV absorbers, IR reflectors, impact modifiers, colorants, pigments,

Antistatic agents, flame retardants and fillers are included. These additives allow a simple adaptation of the plate properties to specific requirements. The

Surface of the insulating layer and / or the insulating board made of plastic can be biocidal equipped to counteract the growth of algae, fungi, bacteria, lichens, mosses and / or the like. For this purpose, in particular silver compounds can be introduced into the surface. Furthermore, the surface, in particular in the case of rain, can be treated with a biostatically active substance, wherein this treatment can be carried out in particular also by means of a rain-induced release from a component.

Suitable biostatically active substances are, for example, metals or metal alloys, which preferably contain copper, zinc and / or lead, metal-organic

Compounds, preferably organic mercury and tin compounds, organic compounds, preferably selected from atrazine, simazine, pelargonic acid, triazines, and agents from the classes of azoles, morpholines and strobilurins. Furthermore, the surface of the

Gas conducting layer with a scratch-resistant lacquer or with

self-cleaning and / or water-spreading properties are equipped, so-called no-drop effect.

The surface of the facade panel can also be colored

be designed and / or provided with a structure. In general, the outer, i. of the

Building wall farthest surface of the

Plastic insulation board of the surface of the outer

Surface of the web manifold. According to a preferred embodiment, the insulating board made of plastic can only have a small number of types of plastic. This can include the

Recycling of the insulating board made of plastic can be increased. Accordingly, preferred insulation board made of plastic at most four, more preferably at most two and most preferably a plastic type. The term plastic grade means that an article made from exactly one kind of plastic can be recycled by the fact that the article

melted and the plastic obtained therefrom, for example by granulation, can be recycled, without a separation of the resulting plastic is necessary. In this regard, plastics remain that only a small proportion, for example, up to 5 Wt .-%, preferably up to 1 wt .-% in the insulation board made of plastic are included, out of consideration.

A plastic insulating panel according to the invention comprises at least one insulating layer. The insulating layer is used for

Providing preferably a thermal insulation, but can also contribute to sound insulation.

Accordingly, the insulating layer should have the lowest possible thermal conductivity. On the other hand, an extremely good insulation is often associated with high costs.

Preferably, therefore, the insulating layer has a

Thermal conductivity in the range of 0.003 to 0.1 W / (mK), more preferably in the range of 0.01 to 0.08 W / (mK), measured in accordance with ASTM C 518-04 or according to DIN EN 12667. The insulating layer can however, may be formed as a homogeneous layer, but may also consist of several individual layers. The insulation boards made of plastic are characterized in that at least one insulating layer, preferably all layers filled with insulating material, comprises an airgel as insulating material / comprise or exclusively from

Airgel as insulating material is / consist.

The filling of the insulation board with airgel enables it to have a transmittance of at least 10%,

preferably> = 40%, particularly preferably> = 60%, measured according to ASTM D 1003-07. As a result, the insulation board can also be used in areas where, despite insulation, sufficient light is required (eg as side walls of greenhouses). In addition to the airgel, the insulating effect can optionally by a vacuum or a stationary gas as possible in the

Hollow chambers are improved. In addition, in the

Insulating layers or at least in individual insulating layers a different from aerogels insulating material can be used. Preference is given to insulating materials made of fibers,

Particles, plastics and / or foams used. Polyurethane, polymethyl methacrylate (PMMA), poly (meth) acrylimide (PMMI), polyimide (PI) and / or among others are among the preferred plastics that can serve for the production of the insulating layer or the insulating material

Polystyrene. According to a particular aspect, at least one insulating layer may comprise expanded polystyrene (EPS) and / or foamed poly (meth) acrylimide (PMMI). The above products are commercially available. For example, foamed poly (meth) acrylimide (PMMI) under the trade name ROHACELL ^® from Evonik Röhm GmbH be obtained with different embodiments under the designations ROHACELL ^® XT, ROHACELL ^® IG, ROHACELL ^® WF or ROHACELL ^® HT can be obtained which a

show thermal conductivity in the range of 0.02 to 0.05 W / (mK). Foamed polystyrene, in particular in the form of heat-insulating plates can be obtained, inter alia, under the name of Caparol Capatec ^®, which

Plates have a thermal conductivity of about 0.035 W / (mK) according to DIN EN 12 939. Preferred particles, in particular inorganic particles, include aerosils, fumed silicas and / or

Precipitated silicas, gels, in particular aerogels and / or xerogels. Other suitable inorganic insulating materials include inorganic foams, in particular airgel foams and / or inorganic fibers. Furthermore, the insulating layer may also comprise polysilicic acids and organically modified SiO 2 networks. Materials for producing the insulating layer, in particular aerogels, aerosils and / or fumed silicas, are set forth, for example, in EP-A-0 446 486, US Pat. No. 5,389,420 and US Pat. No. 5,236,758, reference being made to these publications for disclosure purposes and those therein

disclosed materials for the preparation of the insulating layer are incorporated into this application. Preferred aerogels to be used are, for example, in the documents

WO 2007/044341 A2, WO 02/052086 A2 and

WO 98/13135 described.

Airgel foams are set forth, inter alia, in WO 2007/146945, the airgel foams described herein being incorporated herein by reference for purposes of disclosure. Preferred insulating materials, in particular inorganic particles, are described in the publications US 2007 102055A1;

WO 94/25149; WO 98/45032; WO 98/045035; WO 98/045210, and WO 2007/024925, with reference to these documents

For purposes of disclosure, and that in it disclosed materials for the preparation of the insulating layer are incorporated into this application.

These materials can be used individually or as a mixture

be used with each other or as a mixture with other materials (for example in the form of fibers or fiber composites), however, as indicated above, it should be noted that at least one insulating layer is an airgel

Insulating material includes.

Mixtures of different insulating materials, in particular inorganic particles with fibers, preferably

Plastic fibers are mentioned in the publications

WO 2005/098553; WO 97/23675 and US 2003/077438 A1,

set forth in these documents to

For purposes of disclosure, and that in it

disclosed materials and methods for producing the insulating layer, in particular the particles and the fibers are incorporated into this application.

In addition, the insulating layer may include conventional additives, such as carbon black or other IR absorbers.

As already mentioned, at least one insulating layer must contain an airgel as insulating material, preferably all of them are mounted in the hollow chambers of the multi-layered plate

Insulating layers an airgel. Most preferably, the airgel nanogel from Cabot or a comparable airgel is used. These aerogels are characterized by a very large inner pore volume with very narrow pores. This will "save" these aerogels large volume of air in their interior, and there is only a very small convection. This in turn leads to a very good insulation effect. Since these materials are also very free-flowing, pressure-resistant and easy to process, they are particularly suitable as insulating material for the

Inventive insulation board made of plastic. They can simply be filled into the finished extruded multiwall sheets, since they have a sufficiently large average spacing of the webs in the panel according to the invention.

Depending on the material or material combination and the desired insulation effect, the thickness of the insulating layer results from the thickness of the insulating material or the layer with a

stationary gas or a vacuum. Preferably, the thickness of the entire insulating layer, i. the sum of all with insulating material at least partially filled layers in the range of 0.5 to 49 cm, more preferably 4.5 cm to 20 cm, most preferably in the range 0.8 cm to 10 cm.

The insulation board made of plastic preferably has a low heat transfer coefficient U, wherein the insulating layer contributes to the thermal insulation to a particular extent. Preferably, the heat transfer coefficient U of the plastic insulating board is in the range of 0.01 to 3.0

W / (m ² -K), more preferably in the range of 0.03 to 2.0 W / (m ² -K), measured according to ASTM C 518-04 or DIN EN 12667.

The dimensions of the plastic insulation boards is not critical per se, which usually by the Handling is limited. Thus, in the field of prefabricated houses whole walls can be manufactured and assembled. On the other hand, preferred embodiments of a plastic insulating panel according to the invention can be installed easily and without tools. These insulation boards off

Plastic preferably have a length in the range of 100 cm to 400 cm, more preferably in the range of 150 cm to 300 cm and a width in the range of 50 cm to 220 cm, particularly preferably in the range of 80 cm to 150 cm. According to a preferred embodiment of the present invention

Invention is the thickness of the insulating board made of plastic in the range of 0.8 to 50 cm, preferably in the range of 1 cm to 25 cm. The weight per unit area of the plastic insulating panel is preferably 2 to 50 kg / m ² , more preferably 3 to 20 kg / m ² .

As already mentioned, the insulation boards of plastic according to the invention are characterized by a high load capacity, so that the insulation boards made of plastic, depending on

Execution of the assembly and the supporting structure high

Can absorb operating and traffic loads. The

Plastic insulation boards have this one

Tragverhalten of at least 200 N / m ² , preferably

at least 500, more preferably at least 750 N / m ² 'and this is to be determined in accordance with ETAGO10 (statement 09, 2002, section 6.3, page 29). The

According to the invention plastic insulation panels meet at least the classification for impact stress class 3, preferably class 2, more preferably class 1 according to DIN EN 12600 (04/2003). The insulation boards of plastic according to the invention comprise or are multiple web plates. Such plates are also referred to as multi-wall plates and can be made by methods known per se in the art. The terms "multi-web plate", for example, web triple plate and

"Multiple web plate", eg triple web plate, are used synonymously in the context of the present invention.

An essential element of the present invention is, as already mentioned, the mechanical stability of

plastic insulation board according to the invention, the u.a. is ensured by selection of the plastic, by the thickness of the respective straps and webs and by the shape and arrangement of the respective hollow chambers in the web plate.

Particularly preferably, the or include the insulation board according to the invention made of plastic

Crosspiece plates with at least three, preferably 4 to 8, particularly preferably 4 to 6 by webs together

connected, particularly preferably arranged in parallel, straps, in particular a quadruple or

Five-web plate.

Hollow chambers are formed by the straps and webs, wherein all between two straps in a plane parallel hollow chambers as a chamber layer or

Hollow layer are called. The webs of the invention used

Multiple web plates can be perpendicular to the straps or not vertical. In the first case, the mean distance of the webs is equal to the distance of the webs. Is the

Angle of the webs to the straps of 90 ° different, so is drawn through the center of the webs virtual line, which is perpendicular to the outermost straps and determines the distance of the adjacent perpendicular which then corresponds to the average distance. For non-parallel straps, the distance between two perpendiculars will be the same

determines which ones are perpendicular to the same strap. The "midpoint of the webs" is defined by half the length of each web, so the term "mean distance" is not the average of the web distances

but was chosen to also capture the geometries with "oblique" or "round" bars.

The multiple web plates according to the invention may also have different average web spacings. In this case, at least 90%, preferably 100%, of all meet

mean web spacing the condition of claim 1 of the present invention. The web splice plates according to the invention can

In principle, also included crossed bars. These serve to improve the stability of the construction,

However, complicating the filling with insulation. The multiple web plates according to the invention therefore always include non-crossed webs and the distance of these not crossed webs is decisive for the characterization of the plates according to the invention according to claim 1.

According to the invention, one or more of the hollow chambers, preferably completely, filled with an insulating material, wherein at least one chamber layer an airgel as

Insulating material includes. The insulating layer results from the or the filled with the insulating chamber layers.

Furthermore, however, it is also possible to produce an insulating layer, for example a plastic foam or a fibrous structure, which can then be connected to a insulated multi-layer board. This insulating layer with the multiple web plate z. B. be connected by gluing.

Furthermore, a plastic foam on a

Multiple multi-wall slab to be sprayed. Preferably, however, the arrangement of an insulating layer in the filling space of a chamber formed of plastic plates of the multi-wall sheets, wherein the plastic plates

have been joined together for example by gluing or welding. To stiffen the chamber formed, stiffening elements can optionally be arranged in the filling space.

To produce an insulating layer, it is also possible to use materials which have already been prefabricated in an appropriate form. Such insulation materials are inter alia in the publications WO 2006/002440; WO 03/064025 A1; WO 03/097227 A1; EP 1 787 716 A1;

WO 96/06808; US 2007/0173157 A1; US 2007/0222116 A1;

WO 2005/033432 Al; and WO 2006/065904 A1, reference being made to these publications for disclosure purposes and the materials and processes disclosed therein for producing the insulating layer, in particular the particles, the fibers and the further compositions, as well as the insulating layers described therein, being incorporated into this application.

According to a particular embodiment, the insulating layer can be prepared according to the method set forth in EP-A-0 468 124 and in WO 2005/033432 A1, wherein the panels obtainable according to this method are used for the purposes of

Disclosure in the present application. Accordingly, for example, a cavity-containing insulating board with inorganic particles,

in particular an airgel, Aerosil and / or fumed silica are filled. Then this can

Insulating board can be optionally evacuated. After forming a vacuum filled with the insulating material cavities of the insulation board can be closed. In a specific embodiment of the present invention

Invention are insulating plastic panels comprising one of at least three, preferably 4 to 6, by webs

interconnected straps made web plate used, which are designed such, for. B. by the attachment points that after attachment to the building, from Seen from building, at least the outermost, preferably at least the two outermost chamber layers are not filled with insulating material. The chamber layers of the insulation board according to the invention

Plastic can all be different thicknesses, but also have uniform thicknesses.

For example, you can not do this with insulation material

filled chamber layers rather thinner than those with

Be insulating material filled chamber layers. If z. B. the embodiment with two unfilled outer

Chamber layers produced as a bridge quadruple plate (see Figure 2), so the innermost, the airgel-containing chamber layer must be made correspondingly thick to achieve a sufficient insulation effect.

To form a large-scale insulation system of the present invention, it may be necessary to mount a plurality of plastic insulating panels together to form a structure. This can be done for example via a blunt or oblique shock. Furthermore, the

Plastic insulation boards preferably be designed so that the plates can be assembled very easily and safely, the nature of the joint is not critical per se. So the insulation boards can off

Plastic be provided with a connection system.

These include in particular tongue and groove systems or

Clip systems. Furthermore, the plastic insulation board at the edges may have a shape that overlaps Allow connection or a bung. To increase the quality of the connection, the insulation boards can be connected to each other by gluing or Velcro systems. Furthermore, a sealing profile can be positively inserted into the joints.

The insulation boards made of plastic can by usual

Fixing systems are attached to buildings.

For example, the insulation boards made of plastic can be mounted by gluing, especially in the form of adhesive bats. Furthermore, the insulation boards made of plastic by mechanical fastening methods, such as anchors or anchor rails, in the insulation boards

Plastic can be hooked, attached. To accommodate the anchoring the insulation board made of plastic can be accordingly provided with a groove or a perforation. Furthermore, the plastic insulation boards can be connected by clamping profiles with a building or a supporting structure. For this purpose, for example, a support profile can be set up or attached to an outer wall, for example by screwing. The support profile can be configured in a rectangular design. Usually, these support profiles made of plastic, wood / wood material or metal. The attachment of the plastic insulation board to this profile can be done by clamping the plate by means of a seated on the outside linear clamping rail, which is provided in or over the space between the plates and selectively screwed to the wall profile. Furthermore, the plates may be provided with holes to allow attachment. To facilitate a better assembly, one can

Cover layer can be applied to the insulation board made of plastic.

An advantage of the airgel-filled facade elements is that the thermal insulation capacity, measured as

Thermal resistance R and heat transfer coefficient U, in non-vertical installation of the elements, in contrast to insulating glass does not decrease, but remains constant.

The preferred embodiment of the present invention is explained below by way of example with reference to FIG. It shows an arrangement of the airgel in a chamber, the chamber is made of plastic plates, here PMMA,

built up .

embodiment

example 1

Figure 1: Schematic representation of the structure for

high quality insulation. Hollow chamber plate, filled with airgel. At game 2

Thermal conductivity of an airgel filled

4-fold ribbed plate made of PMMA

The thermal conductivity test was carried out in accordance with DIN EN 12667. On the basis of the test results, the

Thermal resistance R and the

Heat transfer coefficient U is calculated.

The test specimen consists of a PLEXIGLAS ^® - 4-fold

Bridge plate, has the dimensions 800 mm x 800 mm x 32 mm and was filled with the airgel NANOGEL ^® from Cabot. The web spacing of the plate was 32 mm. The failure load F with all-sided support of the element was more than 8000 N / m2

The thermal resistance R of the arrangement is

1, 122 m ² K / W.

The heat transfer coefficient U is 0.774 W / m ² K.

Example 3

FIG. 2 shows a 4-fold web plate made of PMMA

different chamber thicknesses and two outer, not filled with insulation chamber layers and an inner filled with nanogel chamber layer. At game 4

FIG. 3 shows a 5-fold web plate of PMMA with two outer chamber layers not filled with insulating material and two chamber layers completely filled with nanogel

Claims

claims

1. insulating board made of plastic for the production of a

Insulation system, characterized

that it comprises at least one insulating layer comprising or consisting of an airgel and a multi-layer plastic sheet, that the multi-web plate is designed such that it has a mean distance of the non-crossed webs of at least 20 mm, and

that the multi-plate web conforms to the following formula: F [N / (m ² )]> 95 [N / (m ² * mm)] * d _Pi

[mm]] where

dpi for the thickness of the insulation board in mm F is the failure load of the board in N / m ² with a cross-beam distance of 3 m and a projection of the plate at

Side member profile of 15 mm corresponds. Failure means that the plate either breaks or bends in such a way that it slips off the supports.

2. Insulating board made of plastic according to claim 1, characterized in that the multi-web plate of at least three, preferably 4 to 8, more preferably 4 to 6 by webs interconnected belts consists.

3. insulation board made of plastic according to claim 2, characterized in that the multi-web plate is designed such that, after attachment to the building at least the most viewed from the building out

Chamber layer, preferably at least the two

outermost chamber layers and / or the innermost chamber layer seen from the building are not or only partially filled with insulating material, it is preferred that these layers are not filled with insulating material,

especially not filled with airgel.

4. insulation board made of plastic according to one of

preceding claims, characterized in that it comprises at least 2 wt .-%, preferably at least 10 wt .-%, particularly preferably at least 20 wt .-% plastic and / or that in the

Insulation board contained plastic comprises at least one thermoplastic and / or that the insulation board made of plastic has at most 4 types of plastic

5. insulation board made of plastic according to one of

preceding claims, characterized in that it has a translucent layer, so that the insulation board has a transmittance of at least 10%, preferably> = 40%, more preferably> = 60% measured according to ASTM D 1003-07 method B.

6. insulation board made of plastic according to at least one of the preceding claims, characterized in that the insulating layer made of plastic

Fibers, foams and / or particles and / or

inorganic particles, especially xerogels,

Aerosilic and / or fumed silicic acids, inorganic foams and / or inorganic fibers.

7. insulating board made of plastic according to at least one of the preceding claims, characterized in that it comprises an insulating layer of polyurethane,

Polymethylmethacrylate (PMMA), poly (meth) acrylimide (PMMI), polyimide (PI) and / or polystyrene.

8. Insulating board made of plastic according to at least one of the preceding claims, characterized in that the insulating board made of plastic has a basis weight in the range of 2 to 50 kg / m ² , preferably 3 to 20 kg / m ² and / or a thickness in the range of 0 , 8 to 50 cm, preferably 5 cm to 25 cm and / or that the insulating layer has a thickness in the range of 0.5 to 49 cm, more preferably 4.5 cm to 20 cm, most preferably in the range 0.8 cm to 10 cm.

9. insulating board made of plastic according to at least one of the preceding claims, characterized in that the insulating board made of plastic with a

Connection system is provided, via which a plurality of plastic insulating boards can be connected to each other and / or that the insulation board

Plastic on the edges have a shape that allow an overlapping connection or a bung.

10. insulation board made of plastic according to at least one of the preceding claims, characterized in that the insulation board made of plastic with one or more fasteners through which the insulation board made of plastic can be attached to a building and / or that the insulation board made of plastic at least one Includes fastening element or a connection system which is designed form-fitting, in particular in the form of a tongue and groove system or a clip system.

11 insulation board made of plastic according to at least one of the preceding claims, characterized in that the insulation board made of plastic is provided with holes through which the insulation board made of plastic can be attached to a building and / or that the insulation board made of plastic Velcro fastening system includes over which the

Insulation board made of plastic with other insulation board made of plastic and / or a building can be connected.

12. insulating board made of plastic according to at least one of the preceding claims, characterized in that the multi-web plate corresponds to the following formula

F [N / (m ² ]> 95 [N / (m ² * mm)] * d _Pi [mm], preferably F

[N / (m ² ]> 100 [N / (m ² * mm)] * d _Pi [mm], more preferably F [N / (m ² ]> 110 [N / (m ² * mm)] * d _Pi [mm] and most preferably F [N / (m ² ] ≥ 120 [N / (m ² * mm)] * dpi [mm], where F and d _{Pi are} the above

Correspond to definitions.

13. insulating board made of plastic according to at least one of the preceding claims, characterized in that the multi-web plate a middle

Bar spacing of the non-crossed bars of at least 25 mm, particularly preferably 30 to 100 mm, completely

more preferably 30 to 70 mm and especially

preferably 30 to 50 mm.