EP1283310A1 - Isothermal and fire-proof panel - Google Patents

Isothermal and fire-proof panel Download PDF

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Publication number
EP1283310A1
EP1283310A1 EP02291899A EP02291899A EP1283310A1 EP 1283310 A1 EP1283310 A1 EP 1283310A1 EP 02291899 A EP02291899 A EP 02291899A EP 02291899 A EP02291899 A EP 02291899A EP 1283310 A1 EP1283310 A1 EP 1283310A1
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EP
European Patent Office
Prior art keywords
weight
panel according
core
panel
approximately
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Granted
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EP02291899A
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German (de)
French (fr)
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EP1283310B1 (en
Inventor
Denis Zago
Jacques Saulnier
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Setec Batiment
Synergie Et Developpement Industriel
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Setec Batiment
Synergie Et Developpement Industriel
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • 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
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/7015—Door leaves characterised by the filling between two external panels

Definitions

  • the present invention relates to a sandwich structure panel, of the type comprising a core of thermally insulating material and two plates facing metal arranged respectively on either side of the core and linked to said core by connecting means.
  • the panel according to the invention can be used in particular, but not exclusively for the construction of doors, partitions, enclosures, containers or protective or ventilation ducts used for example in the field of chemical or food industry or in the medical field.
  • sandwich panels whose plates facing are made of steel and whose core is made of an organic material, for example a expanded or foamed plastic, or a mineral material, for example of glass wool or rock wool. These known panels are usually designed to have either good isothermal property or good property firewall. However, to the knowledge of the plaintiffs, there is no currently sandwich panels, which have no bridges thermal and have good isothermal, fire-resistant, sanitary and Environmental.
  • the present invention therefore essentially aims to provide a panel with a sandwich structure of the type defined above, which is free of thermal bridges and both isothermal and fireproof; in particular, from the point of view of the fire rating, the panel must comply with ISO 1182, ASTM E-136, BS 476, NEN 3881 and DIN 4102 part 1.
  • the structural panel sandwich according to the invention which is characterized in that the core is constituted by a rigid plate of inorganic material having a glassy structure including empty, and in that each metal facing plate is linked to one side respective of the plate forming the core by a layer of an elastic binder in a organic matter including a filler containing water, said filler being a mineral in hydrated form.
  • a panel 10 according to the invention sandwich structure, comprising a core 1 (central layer) on the opposite faces from which two metal facing plates 2 and 3 are respectively fixed with layers of binder 4 and 5.
  • the core 1 is constituted by a rigid plate of an inorganic material having a glassy structure including voids.
  • the plate forming the core 1 is made of alumino-silicate cellular glass, such as for example the product marketed by the company PITTSBURGH CORNING EUROPE, under the name "FOAMGLASS" (registered trademark) , having the characteristics indicated in table 1 below: Reaction to fire Class M o (non-combustible) Volumic mass 120 kg / m 3 Coefficient of thermal conductivity at 0 ° C ( ⁇ 5%) 0.040 W / (m.
  • the core 1 can also use other materials inorganic with a glass structure and containing voids, such as porous lava or vacuolar lava such as pumice.
  • the thickness of the core 1 depends on the degree of fire resistance or fire rating desired for panel 10.
  • One of the criteria to assess the fire rating of such a sign is the time between the start of a fire and the time when the temperature difference between the temperature of the face of the panel opposite to that exposed to the fire and the ambient temperature before the fire reaches a value predefined, usually 140 ° C. The greater the elapsed time, the greater the degree firewall is considered high.
  • the two metal plates of facing 2 and 3 are preferably steel, although other high-point metals of softening are also usable.
  • at least one of the two metal plates of facing 2 and 3 is made of food-grade austenitic stainless steel.
  • the metal facing plates 2 and 3 can be made of steel ordinary galvanized and / or prepainted at least on the face of the plate which is oriented towards the soul 1.
  • Each of the two metal facing plates 2 and 3 preferably has a thickness which is chosen so as to ensure good protection of the panel 10 against impacts and abrasion to which the panel is liable to be subjected in service, and so to distribute the surface loads while ensuring high compressive strength (0.7 N / mm 2 ).
  • the thickness of the two metal plates 2 and 3 may for example be between 0.6 and 1.2 mm, preferably between 0.8 and 1 mm.
  • each of the two layers of binder 4 and 5 is constituted by an elastic binder in an organic material including a filler containing water.
  • Said filler is a mineral in hydrated form, as for example of trihydrated alumina.
  • the elastic binder is composed of about 68 to 80% by weight a resin of the polyol family, of approximately 6 to 17% by weight of tri-hydrated alumina and about 14 to 15% by weight of a polymerization reagent.
  • each of the two layers of binder 4 and 5 has a thickness of between about 0.8 mm and about 1.2 mm.
  • the mineral filler was first mixed with polybutadiene to hydroxyl termination and the mixture thus obtained was then mixed with the polymerization reagent to obtain a binder which has been applied in the form of a layer on one of the faces of each of the two facing plates 2 and 3, which were then brought into contact with the faces of the plate in "FOAMGLASS" forming the core 1. After 24 hours of polymerization, the binder had a Shore A hardness approximately equal to 50.
  • the panel 10 thus obtained was subjected to a fire resistance test on the basis of the ISO 834-10 fire test curve. Based on this test curve the steel softens at around 640 ° C, the binder chars at around 350-400 ° C and the glass begins to flow at around 720 ° C, when these components are taken individually.
  • curves B, C, D, E and F show the evolution of the temperatures measured respectively by the probes S 1 to S 5 during the fire resistance test.
  • the temperature increase on the external face 2a of the panel 10 has reached 140 ° C after 1 h 5 min and 37 ".
  • the fire resistance test was stopped after 72 mins.
  • the oven temperature T was approximately 980 ° C and the temperature of the face 2a of the panel 10 was between 156 ° C and 178 ° C depending on the position of the temperature sensors.
  • the increase in temperature on the face 2a of the panel 10 was at most equal to 161 ° C. above the ambient temperature.
  • the panel was allowed to cool and, after cooling, it was found that the panel did not show significant deformation, was mechanically stable and had retained its integrity, without altering the core in cellular glass.
  • the panel 10 was then subjected to a fire resistance test in the same conditions as the panel of example 1. The results of the test were similar or even better than those obtained with the panel of Example 1.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

Panels with a sandwich structure comprise a rigid core (1) of porous glassy material bonded to two metal sheets (2, 3) by layers (4, 5) of elastic adhesive comprising an organic binder and a hydrated mineral filler.

Description

La présente invention concerne un panneau à structure sandwich, du type comprenant une âme en un matériau thermiquement isolant et deux plaques métalliques de parement disposées respectivement de part et d'autre de l'âme et liées à ladite âme par des moyens de liaison.The present invention relates to a sandwich structure panel, of the type comprising a core of thermally insulating material and two plates facing metal arranged respectively on either side of the core and linked to said core by connecting means.

Le panneau selon l'invention est utilisable notamment, mais non exclusivement, pour la construction de portes, de cloisons, d'enceintes, de conteneurs ou de gaines de protection ou de ventilation utilisés par exemple dans le domaine de l'industrie chimique ou agro-alimentaire ou dans le domaine médical.The panel according to the invention can be used in particular, but not exclusively for the construction of doors, partitions, enclosures, containers or protective or ventilation ducts used for example in the field of chemical or food industry or in the medical field.

On connaít déjà des panneaux à structure sandwich, dont les plaques de parement sont en acier et dont l'âme est en une matière organique, par exemple une matière plastique expansée ou moussée, ou en une matière minérale, par exemple de la laine de verre ou de la laine de roche. Ces panneaux connus sont usuellement conçus pour avoir soit une bonne propriété isothermique, soit une bonne propriété coupe-feu. Toutefois, à la connaissance des demanderesses, il n'existe pas actuellement de panneaux à structure sandwich, qui sont dépourvus de ponts thermiques et ont à la fois de bonnes propriétés isothermique, coupe-feu, sanitaire et environnementale.We already know sandwich panels, whose plates facing are made of steel and whose core is made of an organic material, for example a expanded or foamed plastic, or a mineral material, for example of glass wool or rock wool. These known panels are usually designed to have either good isothermal property or good property firewall. However, to the knowledge of the plaintiffs, there is no currently sandwich panels, which have no bridges thermal and have good isothermal, fire-resistant, sanitary and Environmental.

La présente invention a donc essentiellement pour but de fournir un panneau à structure sandwich du type défini plus haut, qui soit dépourvu de ponts thermiques et à la fois isotherme et coupe-feu ; en particulier, du point de vue du degré coupe-feu, le panneau doit être conforme aux normes ISO 1182, ASTM E-136, BS 476, NEN 3881 et DIN 4102 partie 1.The present invention therefore essentially aims to provide a panel with a sandwich structure of the type defined above, which is free of thermal bridges and both isothermal and fireproof; in particular, from the point of view of the fire rating, the panel must comply with ISO 1182, ASTM E-136, BS 476, NEN 3881 and DIN 4102 part 1.

A titre secondaire, la présente invention a pour but de fournir un panneau à structure sandwich isotherme et coupe-feu présentant en outre les propriétés suivantes :

  • a). une bonne résistance aux chocs et à l'abrasion auxquels le panneau est susceptible d'être soumis en service ;
  • b). une bonne étanchéité aux liquides, notamment aux liquides volatiles et aux liquides combustibles, et une bonne étanchéité aux gaz, notamment à la vapeur d'eau et aux vapeurs de liquides combustibles ;
  • c). une bonne résistance chimique aux agents corrosifs ;
  • d). une bonne résistance aux rongeurs et à la vermine ; et
  • e). une haute qualité environnementale (HQE), c'est-à-dire que le panneau doit être stable, inerte et non producteur d'éléments polluants.
    • As a secondary objective, the present invention aims to provide a panel with an insulated sandwich and fire-resistant structure, also having the following properties:
  • at). good resistance to impact and abrasion to which the panel is liable to be subjected in service;
  • b). good sealing against liquids, in particular volatile liquids and combustible liquids, and good sealing against gases, in particular against water vapor and vapors of combustible liquids;
  • vs). good chemical resistance to corrosive agents;
  • d). good resistance to rodents and vermin; and
  • e). high environmental quality (HQE), that is to say that the panel must be stable, inert and not producing pollutants.

    • Ces objectifs sont au moins partiellement atteints avec le panneau à structure sandwich selon l'invention, qui est caractérisé en ce que l'âme est constituée par une plaque rigide en une matière inorganique ayant une structure vitreuse incluant des vides, et en ce que chaque plaque métallique de parement est liée à une face respective de la plaque formant l'âme par une couche d'un liant élastique en une matière organique incluant une charge contenant de l'eau, ladite charge étant un minéral sous forme hydratée.These objectives are at least partially achieved with the structural panel sandwich according to the invention, which is characterized in that the core is constituted by a rigid plate of inorganic material having a glassy structure including empty, and in that each metal facing plate is linked to one side respective of the plate forming the core by a layer of an elastic binder in a organic matter including a filler containing water, said filler being a mineral in hydrated form.

    Le panneau selon l'invention peut en outre présenter une ou plusieurs des caractéristiques suivantes :

    • la matière de la plaque formant l'âme est du verre cellulaire alumino-silicaté ;
    • la matière de la plaque formant l'âme est du "FOAMGLASS" ;
    • le liant élastique est composé d'environ 68 à 80% en poids d'une résine de la famille des polyols, d'environ 6 à 17 % en poids d'un minéral sous forme hydraté et d'environ 14 à 15 % en poids d'un réactif de polymérisation pour la résine ;
    • le liant élastique et composé de 5,394 parties en poids d'un polybutadiène à terminaison hydroxyle contenant des quantités usuelles de plastifiants, promoteurs d'adhérence, stabilisants et catalyseurs, de 0,406 partie en poids d'alumine tri-hydratée et de 1 partie en poids d'un di-isocyanate ;
    • le liant élastique est composé de 4,64 parties en poids d'un polybutadiène à terminaison hydroxyle contenant des quantités usuelles de plastifiants, promoteurs d'adhérence, stabilisants et catalyseurs, de 1,16 partie en poids d'alumine tri-hydratée et de 1 partie en poids d'un di-isocyanate ;
    • le liant élastique a une dureté Shore A égale à 50 ± 5 ;
    • chaque couche de liant élastique a une épaisseur comprise entre environ 0,8 mm et environ 1,2 mm ;
    • au moins une des deux plaques de parement est en acier inoxydable austénitique ;
    • au moins une des deux plaques de parement est en acier galvanisé et/ou prélaqué ;
    • la plaque de parement a une épaisseur comprise entre 0,6 mm et 1,2 mm.
    The panel according to the invention can also have one or more of the following characteristics:
    • the material of the plate forming the core is alumino-silicate cellular glass;
    • the material of the plate forming the core is "FOAMGLASS";
    • the elastic binder is composed of approximately 68 to 80% by weight of a resin of the polyol family, approximately 6 to 17% by weight of a mineral in hydrated form and approximately 14 to 15% by weight a polymerization reagent for the resin;
    • the elastic binder and composed of 5.394 parts by weight of a hydroxyl-terminated polybutadiene containing usual amounts of plasticizers, adhesion promoters, stabilizers and catalysts, 0.406 parts by weight of trihydrated alumina and 1 part by weight a di-isocyanate;
    • the elastic binder is made up of 4.64 parts by weight of a hydroxyl-terminated polybutadiene containing usual amounts of plasticizers, adhesion promoters, stabilizers and catalysts, 1.16 parts by weight of trihydrated alumina and 1 part by weight of a di-isocyanate;
    • the elastic binder has a Shore A hardness equal to 50 ± 5;
    • each layer of elastic binder has a thickness of between approximately 0.8 mm and approximately 1.2 mm;
    • at least one of the two facing plates is made of austenitic stainless steel;
    • at least one of the two facing plates is made of galvanized and / or prepainted steel;
    • the facing plate has a thickness of between 0.6 mm and 1.2 mm.

    D'autres caractéristiques et avantages de l'invention ressortiront mieux au cours de la description suivante d'un mode de réalisation donné à titre d'exemple en référence aux dessins annexés sur lesquels :

    • la figure 1 est une vue en coupe d'un panneau isotherme et coupe-feu selon l'invention ;
    • la figure 2 est une vue de face du panneau, montrant les positions de plusieurs sondes de température utilisées dans un essai de résistance au feu ;
    • la figure 3 est un diagramme température/temps montrant la montée en température d'un four utilisé pour chauffer la face du panneau opposée à celle sur laquelle sont installées les sondes de température, au cours dudit essai de résistance au feu ;
    • la figure 4 est un diagramme température/temps montrant l'évolution des températures relevées par les sondes de température au cours de l'essai de résistance au feu.
    Other characteristics and advantages of the invention will emerge more clearly during the following description of an embodiment given by way of example with reference to the appended drawings in which:
    • Figure 1 is a sectional view of an insulated and fire-resistant panel according to the invention;
    • Figure 2 is a front view of the panel, showing the positions of several temperature probes used in a fire resistance test;
    • FIG. 3 is a temperature / time diagram showing the rise in temperature of an oven used to heat the face of the panel opposite to that on which the temperature probes are installed, during said fire resistance test;
    • FIG. 4 is a temperature / time diagram showing the evolution of the temperatures recorded by the temperature probes during the fire resistance test.

    En se reportant à la figure 1, on peut voir un panneau 10 selon l'invention, à structure sandwich, comprenant une âme 1 (couche centrale) sur les faces opposées de laquelle deux plaques métalliques de parement 2 et 3 sont respectivement fixées au moyen de couches de liant 4 et 5.Referring to Figure 1, we can see a panel 10 according to the invention, sandwich structure, comprising a core 1 (central layer) on the opposite faces from which two metal facing plates 2 and 3 are respectively fixed with layers of binder 4 and 5.

    L'âme 1 est constituée par une plaque rigide en une matière inorganique ayant une structure vitreuse incluant des vides. Dans un mode préféré de réalisation de l'invention, la plaque formant l'âme 1 est en verre cellulaire alumino-silicaté, tel que par exemple le produit commercialisé par la société PITTSBURGH CORNING EUROPE, sous la dénomination "FOAMGLASS" (marque déposée), ayant les caractéristiques indiquées dans le tableau 1 ci-dessous : Réaction au feu Classe Mo (incombustible) Masse volumique 120 kg/m3 Coefficient de conductivité thermique à 0°C (± 5 %) 0,040 W/(m.°C) Résistance à la compression
    (valeur moyenne à la rupture)     0,7 N/mm2     Résistance à la flexion 0,4 N/ mm2 Module d'élasticité à la flexion 800 N/ mm2 Coefficient de dilatation linéaire 9.10-6/°C Chaleur spécifique 0,84 kJ/(kg.°C) Diffusivité thermique 4,2.10-7 m2/s     The core 1 is constituted by a rigid plate of an inorganic material having a glassy structure including voids. In a preferred embodiment of the invention, the plate forming the core 1 is made of alumino-silicate cellular glass, such as for example the product marketed by the company PITTSBURGH CORNING EUROPE, under the name "FOAMGLASS" (registered trademark) , having the characteristics indicated in table 1 below: Reaction to fire Class M o (non-combustible) Volumic mass 120 kg / m 3 Coefficient of thermal conductivity at 0 ° C (± 5%) 0.040 W / (m. ° C) Compressive strength
    (average value at break)     0.7 N / mm 2     Flexural strength 0.4 N / mm 2 Flexural modulus 800 N / mm 2 Coefficient of linear expansion 9.10 -6 / ° C Specific heat 0.84 kJ / (kg. ° C) Thermal diffusivity 4.2.10 -7 m 2 / s

    A titre de variante, pour former l'âme 1 on peut aussi utiliser d'autres matières inorganiques à structure vitreuse et contenant des vides, comme par exemple une lave poreuse ou une lave vacuolaire telle que la pierre ponce.Alternatively, to form the core 1 one can also use other materials inorganic with a glass structure and containing voids, such as porous lava or vacuolar lava such as pumice.

    L'épaisseur de l'âme 1 dépend du degré de résistance au feu ou degré coupe-feu désiré pour le panneau 10. L'un des critères pour apprécier le degré coupe-feu d'un tel panneau est le temps écoulé entre un début d'incendie et le moment où la différence de température entre la température de la face du panneau opposée à celle exposée à l'incendie et la température ambiante avant l'incendie atteint une valeur prédéfinie, usuellement 140°C. Plus le temps écoulé est grand, plus le degré coupe-feu est considéré élevé.The thickness of the core 1 depends on the degree of fire resistance or fire rating desired for panel 10. One of the criteria to assess the fire rating of such a sign is the time between the start of a fire and the time when the temperature difference between the temperature of the face of the panel opposite to that exposed to the fire and the ambient temperature before the fire reaches a value predefined, usually 140 ° C. The greater the elapsed time, the greater the degree firewall is considered high.

    Dans le panneau 10 selon l'invention, les deux plaques métalliques de parement 2 et 3 sont de préférence en acier, bien que d'autres métaux à point élevé de ramollissement soient aussi utilisables. Dans le cas où le panneau 10 est utilisé dans l'industrie alimentaire ou médicale, au moins une des deux plaques métalliques de parement 2 et 3 est en acier inoxydable austénitique de qualité alimentaire. Pour d'autres utilisations, les plaques métalliques de parement 2 et 3 peuvent être en acier ordinaire galvanisé et/ou prélaqué au moins sur la face de la plaque qui est orientée vers l'âme 1.In the panel 10 according to the invention, the two metal plates of facing 2 and 3 are preferably steel, although other high-point metals of softening are also usable. In the case where the panel 10 is used in the food or medical industry, at least one of the two metal plates of facing 2 and 3 is made of food-grade austenitic stainless steel. For other uses, the metal facing plates 2 and 3 can be made of steel ordinary galvanized and / or prepainted at least on the face of the plate which is oriented towards the soul 1.

    Chacune des deux plaques métalliques de parement 2 et 3 a de préférence une épaisseur qui est choisie de façon à assurer une bonne protection du panneau 10 contre les chocs et l'abrasion auxquels le panneau est susceptible d'être soumis en service, et de façon à répartir les charges surfaciques tout en assurant une haute résistance à la compression (0,7 N/mm2). L'épaisseur des deux plaques métalliques 2 et 3 peut être par exemple comprise entre 0,6 et 1,2 mm, de préférence entre 0,8 et 1 mm.Each of the two metal facing plates 2 and 3 preferably has a thickness which is chosen so as to ensure good protection of the panel 10 against impacts and abrasion to which the panel is liable to be subjected in service, and so to distribute the surface loads while ensuring high compressive strength (0.7 N / mm 2 ). The thickness of the two metal plates 2 and 3 may for example be between 0.6 and 1.2 mm, preferably between 0.8 and 1 mm.

    Dans le panneau 10 selon l'invention, chacune des deux couches de liant 4 et 5 est constituée par un liant élastique en une matière organique incluant une charge contenant de l'eau. Ladite charge est un minéral sous forme hydratée, comme par exemple de l'alumine tri-hydratée.In the panel 10 according to the invention, each of the two layers of binder 4 and 5 is constituted by an elastic binder in an organic material including a filler containing water. Said filler is a mineral in hydrated form, as for example of trihydrated alumina.

    De préférence, le liant élastique est composé d'environ 68 à 80 % en poids d'une résine de la famille des polyols, d'environ 6 à 17 % en poids d'alumine tri-hydratée et d'environ 14 à 15 % en poids d'un réactif de polymérisation. De préférence, chacune des deux couches de liant 4 et 5 a une épaisseur comprise entre environ 0,8 mm et environ 1,2 mm.Preferably, the elastic binder is composed of about 68 to 80% by weight a resin of the polyol family, of approximately 6 to 17% by weight of tri-hydrated alumina and about 14 to 15% by weight of a polymerization reagent. Of preferably, each of the two layers of binder 4 and 5 has a thickness of between about 0.8 mm and about 1.2 mm.

    Les composants du liant élastique, leur proportion respective et l'épaisseur des couches de liant 4 et 5 sont choisis de façon à assurer après polymérisation de la résine :

  • a). une liaison entre chaque plaque métallique 2 ou 3 et l'âme 1 sans délaminage ni rupture des cellules de verre de l'âme 1 à l'interface entre ladite âme et chaque couche de liant 4 et 5 ;
  • b). une bonne adhérence avec l'acier et avec le verre cellulaire ;
  • c). une élasticité suffisante pour compenser ou absorber les déformations du panneau dues aux manutentions, au transport, au montage et à la différence des coefficients de dilatation de l'acier et du verre cellulaire, et pour amortir les chocs auxquels le panneau est susceptible d'être soumis en cours d'exploitation ;
  • d). une élévation de la température d'inflammabilité du liant à 400°C ± 10 %.
    • The components of the elastic binder, their respective proportion and the thickness of the binder layers 4 and 5 are chosen so as to ensure, after polymerization of the resin:
  • at). a connection between each metal plate 2 or 3 and the core 1 without delamination or rupture of the glass cells of the core 1 at the interface between said core and each layer of binder 4 and 5;
  • b). good adhesion with steel and with cellular glass;
  • vs). sufficient elasticity to compensate for or absorb the deformations of the panel due to handling, transport, mounting and the difference in the expansion coefficients of steel and cellular glass, and to absorb the shocks to which the panel is likely to be submitted during operation;
  • d). an increase in the flammability temperature of the binder to 400 ° C ± 10%.

    • Exemple 1Example 1

    On a fabriqué un panneau 10 ayant la structure sandwich représentée sur la figure 1. L'âme 1 était constituée par une plaque en "FOAMGLASS"ayant les caractéristiques mentionnées plus haut et ayant une épaisseur de 70 mm. La plaque de parement 2 était en acier galvanisé, laqué sur ses deux faces, et avait une épaisseur de 0,8 mm. La plaque de parement 3 était en acier inoxydable et avait une épaisseur de 1 mm. Chacune des deux couches de liant 4 et 5 avait une épaisseur d'environ 1,2 mm et était constituée par un liant élastique dénommé "LIDEC", fabriqué par la société CFPI, Mulhouse, France, et ayant la composition suivante :

    • 5,394 parties en poids de polybutadiène à terminaison hydroxyle, contenant les quantités usuelles de plastifiants, promoteurs d'adhérence, stabilisants et catalyseurs ;
    • 0,406 partie en poids de charges minérales (alumine tri-hydratée) ;
    • 1 partie en poids d'un di-isocyanate à titre de réactif de polymérisation pour le polybutadiène à terminaison hydroxyle.
    A panel 10 was made having the sandwich structure shown in FIG. 1. The core 1 was constituted by a "FOAMGLASS" plate having the characteristics mentioned above and having a thickness of 70 mm. The facing plate 2 was made of galvanized steel, lacquered on both sides, and had a thickness of 0.8 mm. The facing plate 3 was made of stainless steel and had a thickness of 1 mm. Each of the two layers of binder 4 and 5 had a thickness of approximately 1.2 mm and was constituted by an elastic binder called "LIDEC", manufactured by the company CFPI, Mulhouse, France, and having the following composition:
    • 5.394 parts by weight of hydroxyl-terminated polybutadiene, containing the usual amounts of plasticizers, adhesion promoters, stabilizers and catalysts;
    • 0.406 part by weight of mineral fillers (tri-hydrated alumina);
    • 1 part by weight of a di-isocyanate as a polymerization reagent for hydroxyl-terminated polybutadiene.

    La charge minérale a été tout d'abord mélangée au polybutadiène à terminaison hydroxyle et le mélange ainsi obtenu a été ensuite mélangé avec le réactif de polymérisation pour obtenir un liant qui a été appliqué sous la forme d'une couche sur l'une des faces de chacune des deux plaques de parement 2 et 3, lesquelles ont ensuite été mises en contact avec les faces de la plaque en "FOAMGLASS" formant l'âme 1. Après 24 heures de polymérisation, le liant avait une dureté Shore A environ égale à 50.The mineral filler was first mixed with polybutadiene to hydroxyl termination and the mixture thus obtained was then mixed with the polymerization reagent to obtain a binder which has been applied in the form of a layer on one of the faces of each of the two facing plates 2 and 3, which were then brought into contact with the faces of the plate in "FOAMGLASS" forming the core 1. After 24 hours of polymerization, the binder had a Shore A hardness approximately equal to 50.

    Le panneau 10 ainsi obtenu a été soumis à un essai de résistance au feu sur la base de la courbe d'essai d'incendie ISO 834-10. Sur la base de cette courbe d'essai d'incendie, l'acier se ramollit à environ 640°C, le liant carbonise à environ 350-400°C et le verre commence à couler à environ 720°C, lorsque ces composants sont pris individuellement.The panel 10 thus obtained was subjected to a fire resistance test on the basis of the ISO 834-10 fire test curve. Based on this test curve the steel softens at around 640 ° C, the binder chars at around 350-400 ° C and the glass begins to flow at around 720 ° C, when these components are taken individually.

    Pour l'essai de résistance au feu, cinq sondes de température S1 à S5 ont été fixées à la face extérieure 2a de la plaque de parement 2 en acier galvanisé du panneau 10 comme montré dans la figure 2. La sonde S3 était placée sensiblement au centre de la face 2a, tandis que les sondes S1, S2, S4 et S5 étaient placées sur les diagonales de la face 2a, sensiblement à mi-distance entre le centre de cette face et chacun de ses angles. La face opposée du panneau 10, c'est-à-dire la face extérieure 3a de la plaque de parement 3 en acier inoxydable, a été chauffée sur toute sa surface au moyen d'un four dont la température a été progressivement élevée conformément à la courbe d'essai incendie ISO 834-10 susmentionnée. Plus précisément, l'élévation de la température du four au-dessus de la température ambiante a été conduite suivant le programme thermique représenté par la fonction T-T0 = 345log10(8t + 1)    dans laquelle t est le temps en minutes, T est la température du four, en degrés C, à l'instant t et T0 est la température ambiante, en degrés C, à l'instant t =0. Au début de l'essai de résistance au feu (t = 0) la température ambiante était de 17°C. Dans le diagramme de la figure 3, la courbe A représente l'évolution de la température T dans le four au cours de l'essai de résistance au feu.For the fire resistance test, five temperature probes S 1 to S 5 were fixed to the outer face 2a of the facing plate 2 made of galvanized steel of the panel 10 as shown in FIG. 2. The probe S 3 was placed substantially in the center of face 2a, while the probes S 1 , S 2 , S 4 and S 5 were placed on the diagonals of face 2a, substantially halfway between the center of this face and each of its angles . The opposite face of the panel 10, that is to say the outer face 3a of the facing plate 3 of stainless steel, was heated over its entire surface by means of an oven whose temperature was gradually raised in accordance with the above-mentioned ISO 834-10 fire test curve. More precisely, the elevation of the oven temperature above the ambient temperature was carried out according to the thermal program represented by the function TT 0 = 345log 10 (8t + 1) in which t is the time in minutes, T is the oven temperature, in degrees C, at time t and T 0 is the ambient temperature, in degrees C, at time t = 0. At the start of the fire resistance test (t = 0) the ambient temperature was 17 ° C. In the diagram in FIG. 3, curve A represents the change in temperature T in the oven during the fire resistance test.

    Dans le diagramme de la figure 4, les courbes B, C, D, E et F montrent l'évolution des températures mesurées respectivement par les sondes S1 à S5 au cours de l'essai de résistance au feu.In the diagram of FIG. 4, curves B, C, D, E and F show the evolution of the temperatures measured respectively by the probes S 1 to S 5 during the fire resistance test.

    D'après les diagrammes des figures 3 et 4, on peut voir que :

    • à t = 5 mn, la température T du four est égale à 573°C et la température de la face extérieure 2a du panneau 10, opposée à la face 3a exposée au four, est égale à 17°C;
    • à t = 10mn, la température T du four est égale à 675°C et la température de la face extérieure 2a est encore égale à 17°C ;
    • à t = 15 mn, la température T du four est égale à 736°C et la température de la face 2a est égale à 18°C ;
    • à t = 30 mn, la température T du four est égale à 839°C et la température de la face 2a est comprise entre 54°C et 64°C selon la position des sondes de température ;
    • à t = 60 mn, la température T du four est égale à 942°C et la température de la face 2a est comprise entre 136°C et 151°C selon la position des sondes de température, ce qui représente une élévation de température de moins de 140°C au-dessus de la température ambiante (17°C) qui régnait au début de l'essai de résistance au feu.
    From the diagrams in Figures 3 and 4, we can see that:
    • at t = 5 min, the temperature T of the oven is equal to 573 ° C and the temperature of the external face 2a of the panel 10, opposite to the face 3a exposed to the oven, is equal to 17 ° C;
    • at t = 10 min, the temperature T of the oven is equal to 675 ° C and the temperature of the external face 2a is still equal to 17 ° C;
    • at t = 15 min, the temperature T of the oven is equal to 736 ° C and the temperature of the face 2a is equal to 18 ° C;
    • at t = 30 min, the temperature T of the oven is equal to 839 ° C and the temperature of the face 2a is between 54 ° C and 64 ° C depending on the position of the temperature probes;
    • at t = 60 min, the temperature T of the oven is equal to 942 ° C and the temperature of the face 2a is between 136 ° C and 151 ° C depending on the position of the temperature sensors, which represents a temperature rise of less than 140 ° C above the ambient temperature (17 ° C) prevailing at the start of the fire resistance test.

    L'augmentation de température sur la face externe 2a du panneau 10 a atteint 140°C au bout de 1 h 5 mn et 37". L'essai de résistance au feu a été arrêté au bout de 72 mn. A ce moment, la température T du four était environ égale à 980°C et la température de la face 2a du panneau 10 était comprise entre 156°C et 178°C selon la position des sondes de température. Ainsi, à la fin de l'essai, l'augmentation de température sur la face 2a du panneau 10 était au plus égale à 161°C au-dessus de la température ambiante.The temperature increase on the external face 2a of the panel 10 has reached 140 ° C after 1 h 5 min and 37 ". The fire resistance test was stopped after 72 mins. At that time, the oven temperature T was approximately 980 ° C and the temperature of the face 2a of the panel 10 was between 156 ° C and 178 ° C depending on the position of the temperature sensors. Thus, at the end of the test, the increase in temperature on the face 2a of the panel 10 was at most equal to 161 ° C. above the ambient temperature.

    A la fin de l'essai, on a laissé le panneau refroidir et, après refroidissement, il a été constaté que le panneau ne présentait pas de déformation significative, était stable mécaniquement et avait conservé son intégrité, sans altération de l'âme en verre cellulaire.At the end of the test, the panel was allowed to cool and, after cooling, it was found that the panel did not show significant deformation, was mechanically stable and had retained its integrity, without altering the core in cellular glass.

    Ce bon comportement du panneau peut être expliqué de la manière suivante. Entre 5 et 15 mn, le liant élastique libère l'eau de l'alumine tri-hydratée, puis carbonise en abaissant la température de rayonnement thermique vers l'âme 1 en verre cellulaire. Ce phénomène est visible sur les courbes B à F de la figure 4 et est représenté par la partie horizontale desdites courbes, à une température d'environ 17 à 18°C. Vers la trentième minute de l'essai de résistance au feu, la plaque de parement 3 en acier inoxydable rayonne vers l'âme 1 en verre cellulaire, avec des températures avoisinant 650°C, et le verre cellulaire vitrifie légèrement en surface sans perte de masse.This good behavior of the panel can be explained as follows. Between 5 and 15 minutes, the elastic binder releases the water from the tri-hydrated alumina, then chars by lowering the temperature of thermal radiation to the core 1 by cellular glass. This phenomenon is visible on curves B to F in Figure 4 and is represented by the horizontal part of said curves, at a temperature of around 17 at 18 ° C. Around the thirtieth minute of the fire resistance test, the plate facing 3 in stainless steel radiates towards the core 1 in cellular glass, with temperatures around 650 ° C, and cellular glass vitrifies slightly on the surface without loss of mass.

    Exemple 2Example 2

    On a fabriqué un panneau 10 à structure sandwich conforme à la figure 1 à partir d'éléments identiques à ceux du panneau de l'exemple 1, excepté que l'on a utilisé pour les couches de liant 4 et 5 un liant dénommé "LUX-2001-1" fabriqué par la société CHEMETALL SPECIALITES CHIMIQUES SAS, Clichy, France, ayant la composition suivante :

    • 4,64 parties en poids de polybutadiène à terminaison hydroxyle, contenant les quantités usuelles de plastifiants, promoteurs d'adhérence, stabilisants et catalyseurs ;
    • 1,16 partie en poids d'alumine tri-hydratée ;
    • 1 partie en poids de di-isocyanate à titre de réactif de polymérisation pour le polybutadiène à terminaison hydroxyle.
    A panel 10 with a sandwich structure according to FIG. 1 was made from elements identical to those of the panel of Example 1, except that a binder called "LUX" was used for the binder layers 4 and 5. -2001-1 "manufactured by the company CHEMETALL SPECIALITES CHIMIQUES SAS, Clichy, France, having the following composition:
    • 4.64 parts by weight of hydroxyl-terminated polybutadiene, containing the usual amounts of plasticizers, adhesion promoters, stabilizers and catalysts;
    • 1.16 parts by weight of tri-hydrated alumina;
    • 1 part by weight of di-isocyanate as a polymerization reagent for hydroxyl-terminated polybutadiene.

    Le panneau 10 a ensuite été soumis à un essai de résistance au feu dans les mêmes conditions que le panneau de l'exemple 1. Les résultats de l'essai étaient semblables, voire meilleurs que ceux obtenus avec le panneau de l'exemple 1.The panel 10 was then subjected to a fire resistance test in the same conditions as the panel of example 1. The results of the test were similar or even better than those obtained with the panel of Example 1.

    Il va de soi que les exemples donnés ci-dessus ont été donnés à titre purement indicatif et nullement limitatif, et que l'on peut utiliser, pour la construction du panneau, des matériaux présentant des caractéristiques physico-chimiques et/ou des réactions au feu équivalentes à celles des matériaux indiqués dans les exemples, sans pour autant sortir du cadre de la présente invention.It goes without saying that the examples given above have been given purely indicative and by no means limiting, and which can be used, for the construction of the panel, materials with physico-chemical characteristics and / or reactions to fire equivalent to those of the materials indicated in the examples, without however, depart from the scope of the present invention.

    Claims (11)

    Panneau à structure sandwich, comprenant une âme (1) en un matériau thermiquement isolant et deux plaques métalliques de parement (2, 3) disposées respectivement de part et d'autre de l'âme et liées à ladite âme par des moyens de liaison (4, 5), caractérisé en ce que l'âme (1) est constituée par une plaque rigide en une matière inorganique ayant une structure vitreuse incluant des vides, et en ce que chaque plaque métallique de parement (2,3) est liée à une face respective de la plaque formant l'âme (1) par une couche (4 ou 5) d'un liant élastique en une matière organique incluant une charge contenant de l'eau, ladite charge étant un minéral sous forme hydratée.Sandwich structure panel, comprising a core (1) made of a thermally insulating material and two metal facing plates (2, 3) respectively disposed on either side of the core and linked to said core by connecting means ( 4, 5), characterized in that the core (1) consists of a rigid plate made of an inorganic material having a glassy structure including voids, and in that each metal facing plate (2,3) is linked to a respective face of the plate forming the core (1) by a layer (4 or 5) of an elastic binder in an organic material including a filler containing water, said filler being a mineral in hydrated form. Panneau selon la revendication 1, caractérisé en ce que la matière de la plaque formant l'âme (1) est du verre cellulaire alumino-silicaté.Panel according to claim 1, characterized in that the material of the plate forming the core (1) is alumino-silicate cellular glass. Panneau selon la revendication 2, caractérisé en ce que la matière de la plaque formant l'âme (1) est du "FOAMGLASS".Panel according to claim 2, characterized in that the material of the plate forming the core (1) is "FOAMGLASS". Panneau selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le lient élastique est composé d'environ 68 à 80 % en poids d'une résine de la famille des polyols, d'environ 6 à 17 % en poids d'un minéral sous forme hydratée et d'environ 14 à 15 % en poids d'un réactif de polymérisation pour la résine.Panel according to any one of Claims 1 to 3, characterized in that the elastic bond is composed of approximately 68 to 80% by weight of a resin of the polyol family, of approximately 6 to 17% by weight of 'a mineral in hydrated form and approximately 14 to 15% by weight of a polymerization reagent for the resin. Panneau selon la revendication 4, caractérisé en ce que le liant élastique est composé de 5,394 parties en poids d'un polybutadiène à terminaison hydroxyle contenant des quantités usuelles de plastifiants, promoteurs d'adhérence, stabilisants et catalyseurs, de 0,406 partie en poids d'alumine tri-hydratée et de 1 partie en poids d'un di-isocyanate.Panel according to claim 4, characterized in that the elastic binder is composed of 5.394 parts by weight of a hydroxyl-terminated polybutadiene containing usual amounts of plasticizers, adhesion promoters, stabilizers and catalysts, of 0.406 parts by weight of tri-hydrated alumina and 1 part by weight of a di-isocyanate. Panneau selon la revendication 4, caractérisé en ce que le liant élastique est composé de 4,64 parties en poids d'un polybutadiène à terminaison hydroxyle contenant des quantités usuelles de plastifiants, promoteurs d'adhérence, stabilisants et catalyseurs, de 1,16 parties en poids d'alumine tri-hydratée et de 1 partie en poids d'un di-isocyanate.Panel according to claim 4, characterized in that the elastic binder is composed of 4.64 parts by weight of a hydroxyl-terminated polybutadiene containing usual amounts of plasticizers, adhesion promoters, stabilizers and catalysts, of 1.16 parts by weight of trihydrated alumina and 1 part by weight of a di-isocyanate. Panneau selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le liant élastique a une densité Shore A égale à 50 ± 5. Panel according to any one of claims 1 to 6, characterized in that the elastic binder has a Shore A density equal to 50 ± 5. Panneau selon l'une quelconque des revendications 1 à 7, caractérisé en ce que chaque couche (4, 5) de liant élastique a une épaisseur comprise entre environ 0,8 mm et environ 1,2 mm.Panel according to any one of claims 1 to 7, characterized in that each layer (4, 5) of elastic binder has a thickness of between approximately 0.8 mm and approximately 1.2 mm. Panneau selon l'une quelconque des revendications 1 à 8, caractérisé en ce que au moins une des deux plaques de parement (2, 3) est en acier inoxydable austénitique.Panel according to any one of claims 1 to 8, characterized in that at least one of the two facing plates (2, 3) is made of austenitic stainless steel. Panneau selon l'une quelconque des revendications 1 à 9, caractérisé en ce que au moins une des plaques de parement (2, 3) est en acier galvanisé et/ou prélaqué.Panel according to any one of claims 1 to 9, characterized in that at least one of the facing plates (2, 3) is made of galvanized and / or prepainted steel. Panneau selon l'une quelconque des revendications 1 à 10, caractérisé en ce que chaque plaque de parement (2, 3) a une épaisseur comprise entre 0,6 mm et 1,2 mm.Panel according to any one of claims 1 to 10, characterized in that each facing plate (2, 3) has a thickness between 0.6 mm and 1.2 mm.
    EP02291899A 2001-08-10 2002-07-26 Isothermal and fire-proof panel Expired - Lifetime EP1283310B1 (en)

    Applications Claiming Priority (2)

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    FR0110725 2001-08-10
    FR0110725A FR2828507B1 (en) 2001-08-10 2001-08-10 INSULATED AND FIRE-RESISTANT PANEL

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    AT (1) ATE290631T1 (en)
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    CN102797301A (en) * 2012-08-20 2012-11-28 宁波荣山新型材料有限公司 Low-temperature foam glass/steel wire net frame composite heat insulating plate and preparation method thereof
    EP2522503A3 (en) * 2011-05-12 2013-04-03 List components & furniture GmbH Composite element
    WO2010122196A3 (en) * 2009-04-21 2013-08-01 Juan Lloveras Calvo Laminated material including a central core made from high-density foam and at least one stainless steel sheet, and production and machining methods
    CN104988997A (en) * 2015-06-03 2015-10-21 安徽鸿路钢结构(集团)股份有限公司 Heat preservation metal plate
    CN109057659A (en) * 2018-07-11 2018-12-21 叶成 Stainless steel foam fire resistant doorsets technique

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    RU174708U1 (en) * 2017-05-22 2017-10-30 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" THREE-LAYER WALL PANEL

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    DE4218464A1 (en) * 1992-06-04 1993-12-09 Hans Josef May Plate-like component and method for its production
    FR2710930A1 (en) * 1993-10-04 1995-04-14 Rech Dev Marine Fire-resistant composite panel and method of manufacturing such a panel

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    DE4218464A1 (en) * 1992-06-04 1993-12-09 Hans Josef May Plate-like component and method for its production
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    Cited By (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2010122196A3 (en) * 2009-04-21 2013-08-01 Juan Lloveras Calvo Laminated material including a central core made from high-density foam and at least one stainless steel sheet, and production and machining methods
    CN101922204A (en) * 2010-08-23 2010-12-22 樊永朋 Metal structure net mineral wool block and manufacturing method thereof
    CN101922204B (en) * 2010-08-23 2013-03-06 樊永朋 Metal structure net mineral wool block and manufacturing method thereof
    EP2522503A3 (en) * 2011-05-12 2013-04-03 List components & furniture GmbH Composite element
    CN102797301A (en) * 2012-08-20 2012-11-28 宁波荣山新型材料有限公司 Low-temperature foam glass/steel wire net frame composite heat insulating plate and preparation method thereof
    CN104988997A (en) * 2015-06-03 2015-10-21 安徽鸿路钢结构(集团)股份有限公司 Heat preservation metal plate
    CN109057659A (en) * 2018-07-11 2018-12-21 叶成 Stainless steel foam fire resistant doorsets technique

    Also Published As

    Publication number Publication date
    EP1283310B1 (en) 2005-03-09
    FR2828507B1 (en) 2003-10-24
    DE60203149D1 (en) 2005-04-14
    FR2828507A1 (en) 2003-02-14
    ATE290631T1 (en) 2005-03-15

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