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EP2203611A2 - Plaque de mousse eps dotée d'une surface réfléchissante - Google Patents

Plaque de mousse eps dotée d'une surface réfléchissante

Info

Publication number
EP2203611A2
EP2203611A2 EP08804675A EP08804675A EP2203611A2 EP 2203611 A2 EP2203611 A2 EP 2203611A2 EP 08804675 A EP08804675 A EP 08804675A EP 08804675 A EP08804675 A EP 08804675A EP 2203611 A2 EP2203611 A2 EP 2203611A2
Authority
EP
European Patent Office
Prior art keywords
eps foam
eps
styropolymerisatkügelchen
foam sheet
styrene polymer
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Withdrawn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
EP08804675A
Other languages
German (de)
English (en)
Inventor
Matthias Hofbauer
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.)
Wki Isoliertechnik GmbH
Original Assignee
Wki Isoliertechnik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38825745&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2203611(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wki Isoliertechnik GmbH filed Critical Wki Isoliertechnik GmbH
Publication of EP2203611A2 publication Critical patent/EP2203611A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/205—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics of foamed plastics, or of plastics and foamed plastics, optionally reinforced
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/224—Surface treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • C08J9/232—Forming foamed products by sintering expandable particles
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/038—Use of an inorganic compound to impregnate, bind or coat a foam, e.g. waterglass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene
    • 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
    • E04B2001/7691—Heat reflecting layers or coatings

Definitions

  • the invention relates to an EPS foam sheet of styrene polymer beads with a reflective coating, a process for producing an EPS foam sheet, an EPS foam sheet system and a use with the features mentioned in the preambles of independent claims.
  • EPS foam boards are widely used for thermal insulation of facades.
  • the lowest possible N value according to DIN 52612 is important.
  • so-called athermal additives for the styrene polymer such as carbon black, graphite, aluminum and other suitable materials, and corresponding expandable styrene polymer materials for the EPS Foam panels offered in the market.
  • a striking feature of all these materials is a continuous light to dark gray colored EPS foam board.
  • EPS foam boards made of styrene polymer are on the market, which are provided with a mixture of normal and athermal additives, so-called Dalmatiner plates.
  • EPS foam plates with reduced thermal conductivity and their materials are described for example in EP 778 309, EP 863 175, EP 915 127, EP 981 574, DE 10 2004 028 768 and EP 1 159 338. All inventions have in common that atherme materials are used to reduce the thermal conductivity of the styrene polymer in conjunction with other substances to increase the flame resistance for an improved fire class of EPS foam boards.
  • the object of the invention is to improve the heat-insulating properties of the EPS foam sheets of coated EPS styrene polymer beads, in particular with regard to the infrared radiation and / or the visible solar radiation.
  • Another object of the invention is to prevent the heating of the EPS foam sheets by incident radiation, to reduce their thermal conductivity, and to deform as a result of the different expansion caused by solar radiation.
  • partial hollow-body-shaped reflectors are formed on at least one surface of the EPS foam sheet in the case of an EPS foam sheet consisting of coated polystyrene beads.
  • the partially hollow-body-shaped reflectors are filled with polystyrene, because they are then produced simply by cutting the surface. In this case, the infrared radiation passes through the styrofoam polymer to the reflective coating, where it is reflected.
  • this surface is formed from separated polystyrene beads.
  • the reflective coating of the styrofoam polymer beads is preferably a coating designed for the reflection of the infrared radiation and / or the visible solar radiation and, in further advantageous embodiments, for example formed from one of the materials carbon black, graphite or aluminum.
  • This effect further has the effect that the trimmed EPS styrene polymer beads with their outer aluminum cladding act as a reflector for the incident heat radiation of the sun on facades. This has, as proven in experiments, with the result that these cladding panels heat less in intense sunlight than the previously made of an athermal EPS styrene polymer facade panels.
  • this is based on a process for producing an EPS foam sheet from coated styrofoam polymer beads, comprising steps for foaming previously, preferably reflective, coated styrofoam bead to form a block body.
  • this block body is separated into a plurality of EPS foam plates of predetermined or predeterminable thickness
  • the objects of the present invention are procedurally solved.
  • the effectiveness of the inventive surfaces of the EPS foam sheets is particularly high when the cutting plane is selected such that the cut through them Styropolymerisatkügelchen are divided substantially centrally.
  • the thus divided Styropolymerisatkügelchen thus form the most favorable geometric configuration of the part-hollow body-shaped reflectors from separated Styropolymerisatkügelchen. The reflection of the incident radiation can therefore be done more effectively, which can be confirmed in a surprising manner by measurement results.
  • the block body is preferably rectangular, rhombus-shaped, trapezoidal or polygonal shaped.
  • the separation of the block body into a plurality of EPS foam sheets can be carried out preferably by cutting and / or fusion cutting / melt cutting, each EPS foam sheet (1) receives a front and a back plate surface.
  • EPS foam plates can be used to further increase heat insulating properties.
  • at least two EPS foam sheets are joined together at their front and rear plate surfaces. It is particularly advantageous if the connection between at least two EPS foam boards is made using an adhesive.
  • the present invention is based on an EPS foam sheet system of a plurality of stacked EPS foam sheets.
  • connection between at least two EPS foam sheets is preferably carried out in a preferred embodiment of the EPS foam sheet system according to the invention using an adhesive.
  • the objects of the invention are achieved by using an EPS foam board produced by the method of any of the above-described preferred embodiments and / or an EPS foam board system for thermal insulation of facades made according to one of the described embodiments and / or roofs of buildings solved.
  • the EPS foam sheet and / or EPS foam sheet system is preferably arranged on the building surfaces such that the surfaces formed by part-hollow-shaped reflectors surfaces of the EPS foam sheets are directed to the outside.
  • the facades are provided with a heat-reflecting plaster layer or paint and the roof insulation panels with a heat-reflecting roof skin.
  • Figure 1 is a perspective view of an embodiment of the invention
  • Figure 2 is a schematic cross-sectional and partial sectional view of an embodiment of the EPS foam sheet system according to the invention
  • Figure 3 is an enlarged schematic cross-sectional and partial sectional view of a
  • Figure 4 is an enlarged schematic partial top sectional view of a
  • Figure 5 is a further enlarged schematic cross-sectional and partial sectional view of a conventional EPS foam sheet.
  • FIG. 1 shows a perspective view of an embodiment of the EPS foam board 1 according to the invention.
  • the frontally represented surface 2 of the EPS foam board 1 has a surface structure typical for EPS foam boards. This structure results from the fact that the polystyrene beads 4, which make up the EPS foam, were foamed in a sintering process. The individual Styropolymerisatkügelchen 4, are brought to the expansion of the hot, for example, by a 140 0 C vapor pressures so tightly together that they will be deformed to irregular shaped bodies, which together form visible transition surfaces. Since the polystyrene beads for the present EPS foam sheet 1 have, for example, aluminum coating with an aluminum powder, the separating surface formed between the adjacent sintered polystyrene beads 4 is formed of this aluminum layer.
  • the EPS foam sheets 1 of the invention are preferably made by separating thinner sheets from a larger block body. The separation can be done by cutting tools or melt separation tools.
  • the parting plane between the individual plates is selected such that the Styrolpolymerisatkügelchen 4 are cut as centrally as possible.
  • part-hollow-body-shaped reflectors 3, which are divided into half shells, form on the surface 2 of the EPS foam board 1.
  • the surface 2 of the EPS foam sheet 1 is characterized by a surface formed of uncoated EPS foam, which is covered by a fine network of substantially perpendicular to the surface 2 arranged separating surfaces 7, which separate the individual cut part-hollow body-shaped reflectors 3 from each other.
  • the partially hollow-body-shaped reflectors 3 thus form, according to the invention, inwardly curved, ie concave, mirrored aluminum reflecting surfaces or reflectors whose geometric shape is particularly advantageous for impinging on the surface 2 of the EPS foam board 1 infrared or visible To reflect solar radiation.
  • the surface 2 of the EPS foam board 1 formed in accordance with the invention reflects the heat, ie the infrared radiation, much more effectively than a conventional EPS foam sheet of aluminum-coated styrene polymer beads.
  • FIGS. 3, 4 and 5 are followed by an explanation of physical relationships to this result according to the invention.
  • FIG. 2 shows a schematic cross-sectional and partial sectional view of an embodiment of the EPS foam board system 6 according to the invention.
  • an EPS foam sheet 1 As shown in Figure 1, causes a much more effective reflection of the infrared radiation and the visible solar radiation, in the present embodiment of the present invention, several EPS foam sheets 1 produced according to the invention superimposed and, for example with a Adhesive bond to an EPS foam board system 6 united.
  • EPS foam board systems 6 produced in accordance with the invention are preferably arranged on the outer surfaces or roof surfaces of buildings in such a way that the reflection surfaces 2k are aligned outwardly against the infrared and / or solar radiation.
  • FIG. 3 shows an enlarged schematic cross-sectional and partial sectional view of an embodiment of the EPS foam board 1 according to the invention.
  • the part-hollow-body-shaped reflectors 3 which are shown in a lateral cross-section and can be recognized as half-shells, essentially form half-shell-shaped, mirrored, concave reflectors.
  • Each of these cup-shaped reflectors 3 is, as described above, provided with a reflective, for example aluminum, coating and formed by the separating surfaces 7.
  • the surface of the reflectors 3 formed in this way is not entirely regular since it is produced by a sintering process in which the expanding styrene polymerate beads exert pressure against each other.
  • This irregular surface formation deteriorates the reflection properties of the reflectors 3.
  • this surface is also not particularly smooth, so that in addition the roughness of the parting surface 7 deteriorates the reflection properties.
  • the material of the coating for example aluminum powdering or coating with graphite powder, likewise forms the reflection properties of these reflection surfaces 7.
  • a radiation component of the incident radiation A which arrives on the respective reflectors 3 via the outer regions or areas of the surface 2 marked as reflection regions I, has good reflection conditions.
  • the beam path of this radiation is represented by arrows labeled Aa as an outer beam path. Because this part of the radiation impinges on the separation surface 7 at a shallow angle, its rays are much better reflected and redirected to the next, again at a shallow angle incident beam path. Thus, an outer ray Aa can be most effective along the dividing surface 7 of a respective reflector 3 are reflected several times and thrown back outwards.
  • the incident radiation is reflected very well in the outer reflection regions I, while in the inner absorption region II the incident radiation absorbs more or predominantly and thus passes into a nearest styrene polymer beads 5.
  • the ratio of the outer reflection regions I to the inner absorption region II is approximately such that about 30 to 40% is attributable to the absorption region II, and the remaining 60 to 70% is attributable to the reflection region I.
  • this ratio of 3: 7 or of 4: 6 has a square effect when converting to a surface.
  • Figure 4 shows an enlarged schematic plan view of a partial section of a preferred embodiment of the EPS foam sheet 1 according to the invention.
  • the outer contour of the reflector 3 is shown in a circle.
  • the internal absorption region II is denoted by a curly bracket Il corresponding to the diameter d, approximately one third of the outside diameter Da of the reflector 3. This shows that the surfaces of the outer reflection region I of the reflector 3 and the surface of the internal absorption region II must be in relation to each other in order to find out what proportion of the incident radiation is effectively reflected and which is absorbed. If one assumes, as previously described, that the diameters d, and Da have a ratio of 4: 6 and 3: 7 respectively, the following effect on the area ratio results:
  • FIG. 5 shows a comparison of the physical processes for a conventional EPS foam board or, for the inner styrene polymer beads 5, corresponding optical paths for the illustration in FIG.
  • a radiation coming from direction A strikes a curved, reflecting surface of an inner styrene polymer bead 5.
  • the surface can be subdivided into regions of favorable reflection angles and a central region with unfavorable radiation incidence angles, an absorption region III and a reflection region IV.
  • the radiation incident here impinges at an obtuse angle from a 90 ° near angle on the reflective surface of the inner styrene polymer bead 5 and penetrates it due to the poor reflection properties.
  • the radiation A incident in the outer reflection regions IV is, as described above, reflected well and effectively thanks to the flat angles of incidence.
  • an outer beam path Aa is hereby deflected to the adjacent Styrolpolymerisatkügelchen, where it now impinges at an obtuse, almost 90 ° angle.
  • this radiation passes through the reflective separation surface of the adjacent Styrolpolymerisatkugelchens, d. H.
  • the radiation is absorbed and reaches the interior of the EPS foam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

La présente invention concerne une plaque de mousse EPS (1), se composant de billes de polymère styrénique enduites (4) et un procédé permettant de fabriquer une plaque de mousse EPS (1) à partir de billes de polymère styrénique enduites. Il est prévu que des réflecteurs (3) partiellement en forme de corps creux soient présents sur au moins une surface (2) de la plaque de mousse EPS (1) et qu'un bloc de mousse EPS soit divisé en plaques de mousse EPS individuelles (1) d'une épaisseur prédéfinie ou pouvant être prédéfinie.
EP08804675A 2007-09-24 2008-09-24 Plaque de mousse eps dotée d'une surface réfléchissante Withdrawn EP2203611A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200720013369 DE202007013369U1 (de) 2007-09-24 2007-09-24 EPS-Schaumstoffplatten mit verminderter Wärmeleitfähigkeit
PCT/EP2008/062770 WO2009040374A2 (fr) 2007-09-24 2008-09-24 Plaque de mousse eps dotée d'une surface réfléchissante

Publications (1)

Publication Number Publication Date
EP2203611A2 true EP2203611A2 (fr) 2010-07-07

Family

ID=38825745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08804675A Withdrawn EP2203611A2 (fr) 2007-09-24 2008-09-24 Plaque de mousse eps dotée d'une surface réfléchissante

Country Status (3)

Country Link
EP (1) EP2203611A2 (fr)
DE (1) DE202007013369U1 (fr)
WO (1) WO2009040374A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013100974U1 (de) * 2013-03-06 2014-06-11 JOMA Dämmstoffwerk GmbH Wärmedämmkörper
CN103317737A (zh) * 2013-07-12 2013-09-25 河北广兴机械科技有限公司 一种eps保温防火板的制作方法
CN104612260A (zh) * 2014-12-24 2015-05-13 常熟市新华化工有限公司 一种改性eps阻燃保温板的制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1201838A1 (fr) * 2000-10-25 2002-05-02 Alcopor Management AG Panneau isolant et procédé pour fabriquer un panneau isolant multicouche

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806509A (en) * 1956-06-11 1957-09-17 Goodyear Aircraft Corp Sandwich structures
CH436696A (de) * 1966-03-23 1967-05-31 Contraves Ag Verfahren zum Herstellen von spezifisch leichten Körpern und nach dem Verfahren hergestellter Zellstruktur-Körper
DE9305431U1 (de) * 1993-04-13 1994-08-11 AlgoStat GmbH & Co. KG, 29227 Celle Formkörper aus Polystyrol-Hartschaum
AT406477B (de) * 1999-01-25 2000-05-25 Sunpor Kunststoff Gmbh Teilchenförmige, expandierbare styrolpolymerisate und verfahren zu ihrer herstellung
CH696270A5 (de) * 2002-04-23 2007-03-15 Stahlton Ag Wärmedämmplatte, insbesondere Schürzenelement.
WO2008148642A1 (fr) * 2007-06-04 2008-12-11 Basf Se Procédé pour le revêtement métallique de particules thermoplastiques

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1201838A1 (fr) * 2000-10-25 2002-05-02 Alcopor Management AG Panneau isolant et procédé pour fabriquer un panneau isolant multicouche

Also Published As

Publication number Publication date
WO2009040374A2 (fr) 2009-04-02
DE202007013369U1 (de) 2007-12-13
WO2009040374A3 (fr) 2009-11-05

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