• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a formulation for the preparation of a fire-retardant mineral insulating material comprising a mineral binder based on a sulfate aluminate cement and a porous bulk material in the form of closed-cell expanded perlite, as well as a construction site-suitable thermal insulation board produced using this formulation.
    公开号:AT515368A1
    申请号:T50079/2014
    申请日:2014-02-03
    公开日:2015-08-15
    发明作者:
    申请人:Geolyth Mineral Technologie Gmbh；
    IPC主号:
    专利说明:

    Confession
    The invention relates to a mineral formulation comprising a mineral binder and closed-cell expanded perlite, in particular for the production of refractory mineral thermal insulation boards with construction site suitable strength.
    A mineral thermal insulation board consists of a pore-containing mineral binder such as cement or gypsum. These pores may be formed by air pockets in the matrix of the set mineral binder by adding a foam component to the liquid formulation. A second possibility is to add a porous bulk material to the formulation, such as expanded clay, expanded glass, expanded slate, pumice or perlite.
    In particular, the use of expanded perlite is advantageous in this case, since this has a low dry bulk density (bulk density about 70 kg / m2).
    The problem, however, is the high absorbency of expanded perlite, whereby the expanded perlite absorbs water from the wet binder mixture. This results in a high residual moisture in the thermal insulation board. This residual moisture can only be reduced to a desired low value over drying plants in short periods of time.
    In DE 10 2006 005 899 Al it is proposed to remedy this problem by coating the expanded pearlite grains with a hydrophobing agent before they are added to the formulation. As a result, although the problem with the residual moisture is fundamentally remediable, it is disadvantageous that the pearlite grains are not or only insufficiently bound in the surrounding matrix of the set mineral binder due to the hydrophobization. Although the hydrophobized pearlite grains are thus enclosed by the matrix, they have no bonds to the hardened mineral binder. This results in a negative effect on the stability of the building board, which leads to a higher weight of the building board (low perlite content).
    AT 504 051 Bl describes a process for the production of a bulk material by puffing by the action of heat of grains of a mineral containing water of crystallization. Typically, this mineral is volcanic glass, especially perlite or pitchstone. The foaming takes place by inserting the mineral grains into the top of a shaft furnace and falling down in it, during which they heat up and inflate. At the lower end, the grains are cooled and solidified on a funnel-shaped collecting wall and in a cool air stream, which also serves for transport. It creates balls with glazed, closed surface. This closed-pore expanded perlite is characterized in that it has a closed, sintered surface, whereby the water absorption is significantly reduced, without applying a hydrophobing agent.
    It is already proposed to use closed-pore expanded perlite as insulating medium in calcium silicate boards and lightweight concrete.
    CN101585687 (A) shows a heat-insulating refractory material which is composed of 80% by weight of component A and 20% by weight of component B wherein component A is composed of 18-22% by weight of aluminate cement, 2-5 % By weight of gypsum, 0.1 to 0.3% by weight of magnesium hydroxides, 1-3% by weight of glass fibers, 1.5 to 2.2% by weight of redispersible emulsion powder and 70 to 75% by weight of water; and Component B is closed-cell perlite having a density of 67 to 70 kg / m3.
    CN102850022 shows cement based thermal insulation material. The cement based thermal insulation material comprises, by weight, 20 to 30 parts Portland cement, 3 to 7 parts polystyrene particles, 5 to 15 parts flyash, 1 part polyaluminum chloride, 3 to 5 parts silica powder, 20 to 30 Parts Aluminate Cement Refractory, 5 to 15 parts of polyacrylonitrile-based carbon fibers, 5 to 15 parts by weight of carbon fibers, 1 to 2 parts of titanium dioxide, 1 to 2 parts of sodium fluorosilicate, 3 to 5 parts of closed-cell expanded perlite, 5 to 10 parts of latex dispersion powder, 1 part Cellulose ethers, 1 part of a water pressure reducer, 1 to 5 parts of calcined desulfurized gypsum powder, 1 to 5 parts of quartz powder, 3 to 5 parts by weight of gray calcium, 3 to 5 parts by weight of heavy calcium carbonate, 3 to 5 parts of aluminum silicate fibers, 1 to 2 parts of oil shale particles and 1 to 2 parts bentonite.
    WO 2011044604 A1, WO 2011044605 A1, AT 509576 B1, discloses mineral foams which have heat-insulating properties and low density. These mineral foams have a high sulphate-aluminate-cement content, which allows rapid setting without autoclaving, which can simplify manufacturing and reduce costs. By using the binder which hydraulically sets in these documents, the advantage is additionally achieved that the mineral foam does not or does not substantially disappear during hardening. Although the air pores provide excellent thermal insulation, plates made from these foams have the disadvantage that their surface is not particularly resistant to mechanical stress.
    The object underlying the invention is to provide an improved formulation for the formation of a construction site suitable, refractory and vapor-permeable mineral thermal insulation board which cures rapidly under normal environmental conditions, has a low density and a good thermal insulation value and which is sufficiently stable to fine structures to be able to train, or to be used on the outside of the building can. For solving the problem it is proposed to provide a formulation comprising a proportion of fast-curing mineral binder based on a sulfate-aluminate cement and a proportion of closed-pore expanded perlite, wherein the mineral binder in a proportion selected from a range of 10 parts by weight and 70 parts by weight is contained in the formulation, the sulfate aluminate cement is contained in the mineral binder in a proportion selected from a range of 55 parts by weight to 85 parts by weight, and the expanded perlite is closed-cell and in the formulation in a proportion selected from a range from 20 parts by weight to 75 parts by weight.
    The proportion of closed-pore, expanded perlite is preferably between 30 and 75% by weight of the formulation.
    Preferably, the closed-cell, expanded perlite has an average particle size of 0.01 to 0.7 mm.
    Preferably, the expanded perlite present as bulk material contains no particles with a size of less than 10 pm, this is advantageous since during manufacture and processing no respirable or inhalable particulate matter is released.
    Preferably, no fibrous additives (for example steel, glass, mineral or plastic fibers) are added to the formulation, which is advantageous since no respirable or inhalable fiber dust is released during production and processing.
    Preferably, the mineral binder is composed of a hydraulically setting binder and a sulfate, wherein the hydraulically setting binder is formed by a sulfate aluminate cement comprising a sulfate component and an aluminum component, and contained in a proportion of at least 50 parts by weight.
    Preferably, the mineral binder is a calcium sulfate aluminate cement (CAS, sulfo-aluminate cement, 4Ca0.3A1203.S03), a sulfate component, an aluminum silicate and a calcium oxide providing component. The sulfate-aluminate cement is contained in a proportion selected from a range of 55 parts by weight to 85 parts by weight in the formulation. Preferably, the proportion of the sulfate-aluminate cement is at least 60 parts by weight, in particular at least 70 parts by weight. The sulfate component, i. the sulphate carrier is included in a proportion in the formulation that a free sulphate content of the formulation is between 5 parts by weight and 15 parts by weight, in particular between 7 parts by weight and 12 parts by weight. The aluminum silicate is contained in a proportion in the formulation that the free Al 2 O 3 content is between 3 parts by weight and 30 parts by weight, in particular between 4 parts by weight and 20 parts by weight. The calcium oxide providing component, i. the calcium oxide carrier is contained in a proportion such that the CaO content is between 0.5 parts by weight and 2 parts by weight, in particular between 0.7 parts by weight and 1.2 parts by weight.
    The mineral binder is preferably formed according to one of the formulations shown in WO 2011044604 A1, WO 2011044605 A1 or AT 509576 B1. These formulations are to be understood as meaning the solid constituents of the formulation for producing the mineral foam, that is to say exclusive of water and foam component or foaming agent. The formulations of WO 2011044604 A1, WO 2011044605 A1 or AT 509576 B1 are incorporated herein by reference for use as a mineral binder in the subject formulation. In particular, the mineral dry mixture of the thermal insulation material GEOLYTH, the GEOLYTH Mineral Technologie GmbH, can be used as binder.
    Preferably, the formulation is added a water content of 1 to 75% to form a flowable, self-curing slurry.
    Preferably, the self-curing flowable slurry is poured into a mold to cure in this to a thermal insulation board.
    Particularly preferably, the self-curing flowable slurry is pressed through a lid into the mold, wherein the self-curing flowable slurry is stabilized at a pressure of 10 to 500 bar and cured to produce a thermal insulation panel with compacted mineral matrix. The slurry is preferably compressed in a range of 5 to 80% of its original volume.
    Preferably, the mold has a complex shape and / or a detailed surface, for the production of stucco-like, heat-insulating elements for facade decoration or as a decorative element in the interior.
    The thermal insulation board produced according to the invention preferably has a density of 90-250 kg / m 3.
    The thermal insulation board produced according to the invention preferably has an E-modulus of 3000 to 9000 KPa.
    The thermal insulation board produced according to the invention preferably has a compressive strength of 0.3 to 1.5 N / m 2 on the basis of EN DIN 826.
    The thermal insulation panel according to the invention preferably has a thermal conductivity λ (io, tr) (lambda tr10) of 0.040 to 0.08 W / mK.
    Preferably, the thermal insulation board produced according to the invention is provided on one side with a hydrophobic coating for attachment to the outside of the building, wherein the coated side of the house wall is facing away from.
    The formulation according to the invention is advantageous over the prior art due to the fact that all the components used originate purely from mineral, biological base materials.
    In particular, the following advantages arise when used as construction or insulating material: - environmentally conscious and energy-efficient construction; - Use of safe materials; - optimum overall energy balance for production and processing, as there is no use of autoclaves or other energy-consuming processes; - no release of toxic substances during processing or burning; - pure mineral substances; - safe disposal.
    Due to the high proportion of sulphate-aluminate cement there are advantages over the prior art that no additional energy is required for the curing of the end products and that due to the high stability achieved and the low shrinkage no reinforcing fibers such as glass fibers or KunstStofffasern, must be added.
    In addition, the high thermal insulation value and the first-class fire protection properties due to their resistance up to 1000 ° Celsius are advantageous. In addition, a coloring with mineral colors, the provision of various surface finishes and the addition of various substances is possible.
    The thermal insulation board according to the invention is advantageous over the prior art, since the entirety of the structural characteristics to be evaluated lead to a sustainable product, which is characterized by the lower total energy consumption compared to petroleum-based products, the product is easy to work, a market-compliant Has product density and which can be disposed of as harmless building waste.
    权利要求:
    Claims (10)
    [1]
    Claims 1. Formulation for the preparation of a fire retardant mineral insulation comprising a mineral binder based on a sulfate aluminate cement and a porous bulk material in the form of expanded perlite, characterized in that - the mineral binder in a proportion selected from a range of 10 parts by weight up to 70 parts by weight in the formulation, that the sulphate aluminate cement is present in the mineral binder in a proportion selected from a range of 55 parts by weight to 85 parts by weight, that the expanded perlite is closed-cell and in the formulation in one part selected from a range of 20 parts by weight to 75 parts by weight.
    [2]
    2. Formulation according to claim 1, characterized in that the mineral binder is formed from sulfate aluminate cement, at least one sulfate component, at least one aluminum silicate and at least one calcium oxide-providing component, wherein the sulfate aluminate cement in a proportion selected from a Range of 55 parts by weight and 85 parts by weight, the sulfate component is contained in a proportion that the sulfate content is between 5 parts by weight and 15 parts by weight, the aluminosilicate is contained in a proportion, that the A1203 portion between 3 parts by weight and 30 parts by weight and the calcium oxide-providing component is contained in a proportion such that the CaO content is between 0.5 parts by weight and 2 parts by weight.
    [3]
    3. Use of the formulation according to one of claims 1 to 2 for the preparation of a flowable, self-curing Slur-rys, characterized in that the formulation per portion of formulation between 10 and 50 parts of water are added.
    [4]
    4. Use of the flowable, self-curing slurry according to claim 3 for producing a refractory thermal insulation board, characterized in that it is poured into a mold and cured in this.
    [5]
    5. Use of the flowable, self-curing slurry according to claims 3 to 4 for the manufacture of a refractory thermal insulation board, characterized in that it is compacted during curing in the mold in a range of 5 to 80% of its original volume.
    [6]
    6. Refractory thermal insulation board produced according to claims 4 and 5 with a formulation according to claims 1 to 3, characterized in that it has a density of 90 to 600 kg / m3.
    [7]
    7. Fireproof thermal insulation panel according to claim 6, characterized in that it has an Emodul of 3000 to 9000 kPa.
    [8]
    8. Fireproof thermal insulation board according to one of claims 6 and 7, characterized in that it has a compressive strength of 0.3 to 1.5 N / m 2 based on the EN DIN 826.
    [9]
    9. Refractory thermal insulation panel according to one of claims 6 to 8, characterized in that it has a thermal conductivity Lambda tri0 of 0.040 to 0.08 W / mK.
    [10]
    10. Refractory thermal insulation board according to one of claims 6 to 9, characterized in that it is coated on one side with a hydrophobing agent.
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    同族专利:
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    SI2902375T1|2016-10-28|
    EP2902375A1|2015-08-05|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20090011207A1|2007-07-05|2009-01-08|United States Gypsum Company|Lightweight cementitious compositions and building products and methods for making same|
    CN101134854B|2007-10-08|2010-10-27|彭桦|Tunnel fire-proof paint|
    CN102372476A|2011-08-09|2012-03-14|大连铭源全建材有限公司|Inorganic thermal insulation light mortar and construction method thereof|
    DE10313186B4|2002-05-16|2008-01-31|Rost, Jörg|light mortar|
    CN1978373A|2005-11-30|2007-06-13|甘肃省建材科研设计院|Method for producing fiber reinforced micro porous light concrete|
    DE102006005899B4|2006-02-09|2009-01-08|Knauf Perlite Gmbh|building board|
    AT504051B1|2006-07-19|2009-01-15|Weihua Liu|PROCESS FOR PRODUCTION OF SHEET GOODS|
    CN101585687A|2009-07-13|2009-11-25|黄卫星|Insulation and fire-proof material and production method thereof|
    AT509011B1|2009-10-15|2011-10-15|Geolyth Mineral Technologie Gmbh|MINERAL FOAM|
    AT509012B1|2009-10-15|2011-10-15|Geolyth Mineral Technologie Gmbh|INSULATION|
    AT509576B1|2010-03-04|2012-05-15|Geolyth Mineral Technologie Gmbh|MINERAL FOAM|
    DE102010048174B4|2010-10-13|2015-04-02|TDH - GmbH Technischer Dämmstoffhandel|Intumescent heat-insulating refractory molding and process for its production|
    CN102850022B|2012-08-30|2014-02-05|苏州市德莱尔建材科技有限公司|Cement-based thermal insulation material|CN107572948B|2017-08-14|2020-01-17|龙元明筑科技有限责任公司|Preparation method of flexible high-strength light building wall material|
    CN111499315A|2020-04-20|2020-08-07|全球能源互联网研究院有限公司|High-temperature-resistant fireproof material and preparation method and application thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50079/2014A|AT515368B1|2014-02-03|2014-02-03|Mineral formulation|ATA50079/2014A| AT515368B1|2014-02-03|2014-02-03|Mineral formulation|
    EP15151727.3A| EP2902375B1|2014-02-03|2015-01-20|Mineral formulation comprising sulfate aluminate cement and closed-pored perlite|
    LTEP15151727.3T| LT2902375T|2014-02-03|2015-01-20|Mineral formulation comprising sulfate aluminate cement and closed-pored perlite|
    ES15151727.3T| ES2588836T3|2014-02-03|2015-01-20|Mineral formulation containing sulfate-aluminate cement and expanded closed pore perlite|
    PL15151727.3T| PL2902375T3|2014-02-03|2015-01-20|Mineral formulation comprising sulfate aluminate cement and closed-pored perlite|
    SI201530001A| SI2902375T1|2014-02-03|2015-01-20|Mineral formulation comprising sulfate aluminate cement and closed-pored perlite|
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