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WO2008146320A2 - Matériau d'isolation thermique et acoustique - Google Patents

Matériau d'isolation thermique et acoustique Download PDF

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Publication number
WO2008146320A2
WO2008146320A2 PCT/IT2008/000347 IT2008000347W WO2008146320A2 WO 2008146320 A2 WO2008146320 A2 WO 2008146320A2 IT 2008000347 W IT2008000347 W IT 2008000347W WO 2008146320 A2 WO2008146320 A2 WO 2008146320A2
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WO
WIPO (PCT)
Prior art keywords
previous
material according
fibres
emulsion
inorganic
Prior art date
Application number
PCT/IT2008/000347
Other languages
English (en)
Other versions
WO2008146320A3 (fr
Inventor
Marco Morocutti
Giuseppe Gianotti
Original Assignee
Fincantieri Cantieri Navali Italiani S.P.A.
Santarossa S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fincantieri Cantieri Navali Italiani S.P.A., Santarossa S.P.A. filed Critical Fincantieri Cantieri Navali Italiani S.P.A.
Publication of WO2008146320A2 publication Critical patent/WO2008146320A2/fr
Publication of WO2008146320A3 publication Critical patent/WO2008146320A3/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/88—Insulating elements for both heat and sound
    • E04B1/90—Insulating elements for both heat and sound slab-shaped
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
    • C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
    • C04B41/495—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as oligomers or polymers
    • C04B41/4961—Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; "silicones"
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • C04B2103/0072—Biodegradable materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • C04B2103/0074—Anti-static agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52—Sound-insulating materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density

Definitions

  • the present invention relates to a thermal-acoustic insulating material and the 5relative method for making it.
  • the present invention also relates to a product containing the aforesaid insulating material.
  • the material according to the invention is aimed specifically at thermal-acoustic insulation with anti-combustion or flameproof properties, especially though not exclusively, in the form of panels.
  • io[OO4] By way of a non-limiting example, one sector of particular interest is the naval sector. The invention may, however, also be applied to other sectors, such as the construction industry. f0051State of the art
  • fibrous materials of synthetic origin among others are polyamide resins (such as nylon).
  • fibrous materials of mineral origin are rock wool/ fibre or glass 25wool/fibre.
  • fibrous materials may be used loose, in the form of fabric, or in the form of panels wherein the fibre is bound by rigid (rigid panels) or flexible (flexible panels) binding materials.
  • spongy materials of natural origin are cork and sea sponges for
  • the synthetic spongy materials are foam rubber, which has an open cell structure (in other words which transpires), and polystyrene and polyurethane foam, which has a closed cell structure.
  • the polyurethane foam which may be of the rigid or flexible type depending on the additives used, may either be in the form ioof granules or loose pellets (such as those used for example for insulation or packaging), or in the form of panels or products for the most varied uses, and especially for use as thermal and acoustic insulation.
  • spongy materials porous or foam
  • expanded clay and vermiculite phyllosilicate mineral of magnesium, trivalent iron isand aluminium, with oxydrils and water
  • vermiculite phyllosilicate mineral of magnesium, trivalent iron isand aluminium, with oxydrils and water
  • the materials of natural and especially plant origin have the advantage of being biodegradable and lightweight (low specific weight), but have limited heat resistance, given that in general they are combustible;
  • the materials of synthetic origin are generally lightweight and 5have a low specific weight, but are not biodegradable or heat-resistant and are generally combustible;
  • the mineral materials are highly resistant to high temperatures, are not combustible, but are generally heavier than the former categories and have a slightly higher thermal and acoustic conductivity than the other materials
  • the raw material of rock wool is natural basalt the chemical composition of which may vary according to the area of provenance and even along the same ,5vein. Rock wool is therefore constantly monitored by the bodies appointed in relation to the issues mentioned above. r00261Presentation of the invention
  • the purpose of the present invention is to eliminate the drawbacks of the state of the art mentioned above by making available a new type ioof material which presents in a balanced manner the more advantageous properties of the said materials of natural origin, of the materials of plastic origin and of the materials of mineral origin but without the drawbacks and defects which the same present individually.
  • the purpose of the present invention is to provide a material lswhich is lightweight, which has thermal and acoustic insulation properties and which is resistant to high temperatures, in other words flame-resistant and therefore incombustible.
  • 20[003O]A further purposi of the present invention is to make available a thermal and acoustic insulating mat ⁇ rial which constitutes an alternative to panels in rock wool or glass wool.
  • a further purpose of the present invention is to make available a thermal and acoustic insulating material which does not present limits to its application with
  • FIG. 1 shows an enlarged schematic view of the structure of the insulating material according to a specific embodiment of the invention
  • i ⁇ [OO35]- Fig. 2 shows a cross-section view of a panel formed with the insulating material according to the present invention in which one can clearly see the expanded cellular structure obtained from the fibre sponge
  • Fig. 3 shows a two-layer panel according to a specific embodiment of the invention: a first layer in granular material made from silica aerogel (thermal and
  • I5acoustic insulant I5acoustic insulant
  • a second fibrous layer made according to the present invention thermo and acoustic insulant
  • FIG.4 shows four graphs relative to the acoustic insulation capacity in dB at a specific frequency range of four insulant materials, of which two (curves a - b) state of the art and two (curves c - d) according to the invention.
  • the method for making the thermal acoustic insulating material comprises the following operative phases: [0040]- a) preparing a foamed watery emulsion comprising inorganic fibres, at least one silicate-based bine ng agent and at least one organic emulsifying- 25foaming agent; [0041]- b) subjecting the emulsion to a first heat treatment aimed at consolidating the foam ( expanded cellular) structure so as to obtain a dried foamed solid body ; and
  • the method according to the invention makes it possible to obtain a material substantially free of organic components (incombustible), having a fibrous matrix with expanded cellular iostructure (porous) which ensures that the material has good mechanical resistance and limited specific weight (density). Combined with these characteristics there is high performance in terms of thermal and acoustic insulation comparable, if not superior, to that of traditional insulating panels in rock wool.
  • the method for making an insulating material according to isthe invention may include a sintering phase of the foam body.
  • such sintering phase is aimed at causing welding of the inorganic fibres to each other and between them and any inorganic materials present, and is performed subsequent to the aforesaid second heat treatment.
  • the method for making an insulating material according to 5the invention may comprise an aspersion phase of the inorganic foamed body with water-repellent compounds, independently of the fact that such is foreseen or not upstream of the aforesaid sintering phase.
  • the preparation phase of the emulsion comprises the following sub-phases:
  • whisk-type devices such as those used in the cake industry
  • a speed ranging from 250 to 1 ,900 revs/min may be used.
  • the addition of the following components may be foreseen: - a foam stabilising agent; - a synthetic foaming agent (in addition to the emulsifying- foaming agent); - an expanded inorganic material; - solid organic bodies (destined to generate cavities inside the mater/al by combustion, as will be described below).
  • 5[0063]Of all these (optional) components one may foresee not only a combined use, but also individual use or use of a selection of the same depending on the requirements and final characteristics desired in the final insulant material.
  • ceramic type fibres are used.
  • the term "ceramic” is taken to include non-metallic materials.
  • Silicate-based ceramic fibres 5 are especially preferred, such as for example glass wool or rock wool. Examples of this type of fibre, present on the market, are the rock wools produced by Rockwool and by Tervol.
  • fibres of the biosoluble lOtype are used as inorganic fibres.
  • ceramic fibres made from silicon oxide (SiO 2 ) with content of alkaline oxides and/or alkaline earth oxides over 18% in weight may be used.
  • SiO 2 silicon oxide
  • An example of such fibre is the fibre Insulfrax ®, having the following
  • I5average composition (percentages in weight): SiO 2 61-67%; AI 2 O 3 ⁇ 1%; CaO 27- 33%; MgO 2,5-6,5%.
  • the inorganic fibres are present in a percentage ranging from 20% to 40% in weight of the emulsion.
  • the fibres are added in staple, preferably * with a length ranging from 500 ⁇ m to 5 cm, and even more ⁇ preferably from 0.2 cm and 5 cm.
  • the fibres have a diameter preferably not greater than 3 ⁇ m.
  • a protein is used as the emulsifying-foaming agent.
  • the emulsifying-foaming capacities of the protein derive from its amphiphilic nature, common to surfactant compounds.
  • I 5[007O]As regards the bonding properties however it is known how proteins (which are substantially the condensation products of amino acids) act differently from conventional binding agents.
  • the main chain of the protein molecule (primary structure) is characterised by the presence of covalent peptide bonds, while the steric folded conformation (typical of proteins, secondary and tertiary structure) is
  • albumin is used as the emulsifying- foaming agent.
  • Albumin (especially ovoalbumin) may be synthetic or of natural origin. In the latter case the albumin may be in the form of powder (dried or lyophilised), or in its natural state, that is albumen.
  • Natural albumin is not pure, but contains various types of proteins and other compounds (such as fats and carbohydrates).
  • Table 1 above shows the composition of the albumen of a hen's egg (percentages in weight). Note how the content of water is practically 90% of the weight.
  • the emulsifying-foaming agent is present with a percentage in weight ranging from 3% to 6% in weight of the emulsion.
  • the first heat treatment is conducted at a temperature ranging from 70 0 C to 120 0 C, and preferably between 8O 0 C and 100 0 C.
  • the length of time of this first heattreatment ranges from 2 to 20 hours, and decreases as the temperature is increased.
  • the silicate-based binding agent is colloidal silica.
  • the function of the colloidal silica is to sustain the fibrous- porous (expanded cellular) structure of the material after the elimination of the
  • potassium and /or sodium silicate iosolutions may be used as inorganic binding agents. It must, however, be pointed out that these specific binding agents while encouraging cohesion with the fibres following the reactions between the silicate and ceramic fibres (with advantages in terms of compactness of the material) seem to slow down the combustion kinetics of the organic components (during the second heat treatment). The use of such binding agents imposes an
  • the silicate-based binding agent is present in a percentage in weight ranging from 15% to 25% in weight of the emulsion.
  • the second heat treatment is conducted at a
  • At least one foam stabilising agent is added to the mixture of water and organic emulsifying-foaming agent.
  • sugar is used as the stabilising agent, added 5preferably at a percentage in weight ranging from 2% to 5% in weight of the emulsion.
  • the sugar is added before or during the formation of the emulsion.
  • the local temperature may reach up to 40-50 0 C making the sugar iofluidify (partial melting - solvation action of the water).
  • fluid filaments of sugar are formed which are dispersed in the mass of material.
  • a (minimal) sudden fall in temperature is sufficient to solidify the filaments of sugar in a vitreous manner.
  • the sugar thus presents a rigid framework (organised in the short
  • I5range and amorphous in the long range which helps to support the expanded cellular structure (foam) before the denaturation of the proteins (following the first heat treatment ).
  • the synthetic foaming agent is added up to a content ranging from 0.3 % to 1% in weight of the emulsion.
  • at least one expanded inorganic material is added, preferably in the form of granules.
  • the aforesaid inorganic expanded material may be of the siliceous, alumino-silicate, alumino-magnesium-silicate, calcareous and/or calcic type, and is preferably chosen from the group comprising expanded clay and
  • such inorganic expanded material is added in a percentage of not more than 20% - 25% in weight of the inorganic fibres.
  • solid bodies in organic material are added, destined to be iocombusted during the second heat treatment so as to generate cavities of controlled dimensions inside the material, in addition to the porosity present in the expanded cellular structure.
  • such cavities may act as acoustic resonators so as to reduce acoustic transmission through the material.
  • the dimensions of such solid isbodies are chosen so that the cavities left by them are substantially tuned with predefined sound frequencies.
  • the method for making the thermal acoustic insulating material foresees the following phases: [0096]a) one starts from an inorganic material in the form of fibre, such as ⁇ rock wool or other equivalent, for example SiO 2 -based in the form of staple fibre; [0097]b) an expanded inorganic material such as expanded clay or equivalent, for example granular expanded mineral or vermiculite in a maximum quantity of 20% is preferably added to the fibres; [0098]c) the mineral fibres in staples are mixed using a whisk mixer
  • dispersing agents are added during the mixing phase to prevent agglomeration of the fibres during crushing, such as commercial dispersing agents known as Reotan®, Dolapix®, Zusoplast®, Peg®;
  • the material thus treated is subjected to a second heat treatment at a high temperature, therefore to a higher temperature between 500 0 C and 600°C for 60-120 minutes to eliminate the organic components of the material.
  • the product thus obtained and cooled is used for subsequent applications or undergoes further
  • Table 2 above shows the initial composition of the emulsion before the 5heat treatments and the characteristics of the final material in terms of thickness of the panel and of density after the heat treatments.
  • 25 has a porous (expanded cellular) structure with low density and lightness of the panel.
  • the low density obtained of 150-210 Kg/m 3 combined with the low thermal conductivity ranging indicatively from 0.033-0.045 W/mk and total incombustibility make the material particularly suitable for insulation applications in naval constructions.
  • I5formed has good elasticity and sufficient compressibility, not being completely rigid. Workability of the material is excellent.
  • Example 1 panel is taken as reference; in the Example 2 panel a quantity of foaming agent was added, leaving the quantity of sugar unvaried; in the Example panel 3 the quantity of sugar was doubled while the other conditions remained unchanged;
  • the anionic surfactant made from a sulphate of a fat alcohol W53 Fl produced by Zschimmer&Schwarz was used as the synthetic foaming loagent.
  • the first and second samples show properties of mechanical resistance similar to those of the reference sample without solid bodies.
  • the third sample is however extremely fragile, and substantially lacking in mechanical resistance.
  • the three samples have a density substantially iocomparable to that of the reference sample, with values measured for all three samples of about 185 kg/m 3 .
  • the fourth sample had similar mechanical resistance properties to that of the reference sample, with no solid bodies. While the fifth sample proved very fragile, and substantially lacking mechanical resistance. As regards the density of the material, the two samples had a lower density than that of the reference
  • the panels according to the invention generally show higher acoustic insulation properties.
  • the material according to the invention may be used loose in granules, for example scattered inside a cavity.
  • the insulating material according to the invention is pre-formed in panels.
  • the panels prove semirigid i5[00142]Advantageously, the panels may be covered on at least one side with a layer of mineral fabric and/or be joined to a sheet of metal sheeting. The metal sheeting may in turn be covered with a finishing surface, for example in PVC.
  • the material may be pre-formed in panels inserted like a sandwich between two layers of covering.
  • the insulating material according to the invention - in the form of a panel - may be joined to at least one layer of covering modelled externally in a shape conducive to acoustic absorption, for example undulated.
  • an embodiment of panel of a thickness of approx. 15-20 mm backed with pre-painted metal sheeting or pre-covered in PVC may be joined to at least one layer of covering modelled externally in a shape conducive to acoustic absorption, for example undulated.
  • the thicker panels of approx. 40-50mm may be used to make walls / bulkheads of class A60.
  • the material can also be used in panels which have not been 5pre-covered, as a thermal acoustic insulating material.
  • the panel backed with protective mineral fabric can be used in the service areas.
  • the method for making a panel with the panel covered in fabric is as follows: io[OO15O]a) mixing of the material in a watery solution,
  • 25insulant material is subjected to an aspersion treatment with water-repellent products such as silicone oils with a high combustion temperature.
  • water-repellent products such as silicone oils
  • Such treatment enables a reduction of the hygroscopic properties of the material.
  • the insulant material comprises granules of colloidal silica in the form of aerogel.
  • the granules of aerogel are used as a low density filler in the same way as vermiculite or expanded clay, in combination with such or in place of such.
  • the contents of silica aerogel in volume is over 20%.
  • Formulations containing respectively 20-30-50 vol.% of granules of aerogel are advantageous.
  • i ⁇ [OO16O]Materials of the silica aerogel type have a low conductivity (0.011-0.013
  • the aerogels also have the property of lightness (density 20-150 kg/m 3 ) and revolutionary thermal insulation. Their main limit is in their elevated fragility and high cost.
  • a thermal-acoustic insulating panel may be made comprising at least one first layer 6 of insulant material with an expanded cellular structure as described in precedence, and at least one second layer 5 of granular thermal and acoustic insulating material made from silica aerogel.
  • a thermal-acoustic insulating 25panel may be made comprising at least a first layer with sound absorption and heat resistant functions (for example: shaped structure in ceramic oxide material or granular material made from silica aerogel) and a second fibrous layer made according to the present invention( thermal and acoustic insulation).
  • the insulating panel 5 may be thought of as composed of two separate parts:
  • the cellular structure of the insulating material according to the invention offers a better noise deadening effect especially for low frequencies, indicating
  • the final panel is composed of non-combustible material (preferably, silica and colloidal silica-based fibre), given that the final heat treatment (500 0 C) totally eliminates the organic compounds.
  • the siliceous mineral fibre and colloidal silica 0 have a thermal conductivity no greater than the thermal conductivity of basalt.
  • the density of the material is no greater than the density of the rock wool mat currently used. One may therefore reasonably assume that the fire-resistant properties are better or at most the same as the rock wool mat.
  • Drying at low temperature and subsequent treatment eliminating the 5emulsifying organic compounds (albumin) are aspects of certain advantage.
  • the use of low cost materials especially albumin, colloidal silica and artificial fibres, vermiculite) reducing the cost of producing the panel, is also a possible technological aspect.
  • an advantageous embodiment is to make the product in a double layer, 5that is one layer designed mainly to reduce the noise in other words for acoustic insulation, of a more foamed and/or cellular nature and a layer designed more for thermal insulation.
  • Such embodiment makes it possible to significantly lighten the weight of the insulating materia).

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Building Environments (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

L'invention concerne un matériau isolant du type de ceux comprenant des fibres minérales mélangées de façon variée les unes avec les autres, caractérisé par le fait que lesdites fibres minérales sont consolidées les unes avec les autres en une structure cellulaire au moyen de l'addition d'une silice colloïdale et sans l'addition de composants organiques. La nouveauté du produit réside dans sa structure cellulaire de densité variable en fonction des pourcentages des composants.
PCT/IT2008/000347 2007-05-25 2008-05-26 Matériau d'isolation thermique et acoustique WO2008146320A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD2007A000090 2007-05-25
ITUD20070090 ITUD20070090A1 (it) 2007-05-25 2007-05-25 "materiale per isolamento termico e acustico"

Publications (2)

Publication Number Publication Date
WO2008146320A2 true WO2008146320A2 (fr) 2008-12-04
WO2008146320A3 WO2008146320A3 (fr) 2009-05-28

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2277691A1 (fr) * 2009-06-25 2011-01-26 Knauf Insulation Technology GmbH Aérogel comportant des stratifiés
EP2402150A1 (fr) * 2010-07-02 2012-01-04 Rockwool International A/S Élément de construction d'isolation, utilisation d'un élément de construction d'isolation et procédé de fabrication d'un élément de construction d'isolation
EP3006417A1 (fr) 2014-10-09 2016-04-13 Glaztec'h Nouvelles mousses rigides minérales poreuses et leurs utilisations
EP3225607A1 (fr) 2016-03-30 2017-10-04 Ipsiis Procédé de préparation des mousses rigides minérales poreuses et leurs utilisations
CN111021561A (zh) * 2019-12-31 2020-04-17 无锡市明江保温材料有限公司 一种无机纤维绝热材料的制备方法
CN113307648A (zh) * 2021-05-29 2021-08-27 九江汇泰科技有限公司 一种高孔隙率多孔陶瓷及其制备方法

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EP2277691A1 (fr) * 2009-06-25 2011-01-26 Knauf Insulation Technology GmbH Aérogel comportant des stratifiés
EP2402150A1 (fr) * 2010-07-02 2012-01-04 Rockwool International A/S Élément de construction d'isolation, utilisation d'un élément de construction d'isolation et procédé de fabrication d'un élément de construction d'isolation
WO2012000585A1 (fr) * 2010-07-02 2012-01-05 Rockwool International A/S Élement de construction isolant, utilisation d'un élément de construction isolant et procédé de fabrication d'un élément de construction isolant
EP3006417A1 (fr) 2014-10-09 2016-04-13 Glaztec'h Nouvelles mousses rigides minérales poreuses et leurs utilisations
EP3225607A1 (fr) 2016-03-30 2017-10-04 Ipsiis Procédé de préparation des mousses rigides minérales poreuses et leurs utilisations
FR3049597A1 (fr) * 2016-03-30 2017-10-06 Ipsiis Procede de preparation des mousses rigides minerales poreuses et leurs utilisations
CN111021561A (zh) * 2019-12-31 2020-04-17 无锡市明江保温材料有限公司 一种无机纤维绝热材料的制备方法
CN113307648A (zh) * 2021-05-29 2021-08-27 九江汇泰科技有限公司 一种高孔隙率多孔陶瓷及其制备方法

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