RU2009119413A - Гипсовая стеновая панель с низким пылением - Google Patents

Гипсовая стеновая панель с низким пылением Download PDF

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RU2009119413A
RU2009119413A RU2009119413/05A RU2009119413A RU2009119413A RU 2009119413 A RU2009119413 A RU 2009119413A RU 2009119413/05 A RU2009119413/05 A RU 2009119413/05A RU 2009119413 A RU2009119413 A RU 2009119413A RU 2009119413 A RU2009119413 A RU 2009119413A
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gypsum
wall panel
amount
low dust
pore volume
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RU2009119413/05A
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RU2475361C2 (ru
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Кьянг Ю (US)
Кьянг Ю
Вейксин Дэвид СОНГ (US)
Вейксин Дэвид СОНГ
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Юнайтед Стэйтс Джипсам Компани (US)
Юнайтед Стэйтс Джипсам Компани
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    • 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
    • C04B28/14—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 calcium sulfate cements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/02—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material with fibres or particles being present as additives in the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B13/08—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/14—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material next to a fibrous or filamentary layer
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    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/42—Glass
    • C—CHEMISTRY; METALLURGY
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/18—Waste materials; Refuse organic
    • C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
    • C04B18/241—Paper, e.g. waste paper; Paper pulp
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    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/16—Acids or salts thereof containing phosphorus in the anion, e.g. phosphates
    • C—CHEMISTRY; METALLURGY
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/08—Fats; Fatty oils; Ester type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/16—Sulfur-containing compounds
    • C04B24/20—Sulfonated aromatic compounds
    • C04B24/22—Condensation or polymerisation products thereof
    • C04B24/226—Sulfonated naphtalene-formaldehyde condensation products
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/38—Polysaccharides or derivatives thereof
    • C04B24/383—Cellulose or derivatives thereof
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0051—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity
    • C04B38/0054—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity the pores being microsized or nanosized
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0051—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity
    • C04B38/0061—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity closed porosity
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • 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
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
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    • B32B2419/00—Buildings or parts thereof
    • B32B2419/04—Tiles for floors or walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels
    • 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
    • C04B2103/0075—Anti-dusting agents
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B2103/40—Surface-active agents, dispersants
    • C04B2103/408—Dispersants
    • 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
    • C04B2111/0062—Gypsum-paper board like materials
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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/232—Encased layer derived from inorganic settable ingredient

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nanotechnology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

1. Гипсовая стеновая панель с низким пылением, включающая затвердевший гипсовый сердечник, сформированный между двумя, по существу, параллельными покровными листами, причем затвердевший гипсовый сердечник имеет общий объем пор от приблизительно 75% до приблизительно 95%, а наиболее предпочтительно от приблизительно 80% до приблизительно 92%. ! 2. Гипсовая стеновая панель с низким пылением по п.1, в которой затвердевший гипсовый сердечник имеет плотность от приблизительно 0,16 г/см3 (10 фунтов на куб. фут) до приблизительно 0,48 г/см3 (30 фунтов на куб. фут). ! 3. Гипсовая стеновая панель с низким пылением по п.1, в которой затвердевший гипсовый сердечник получен из гипсосодержащей суспензии, включающей воду, штукатурный гипс, прежелатинированный крахмал и нафталинсульфонатный диспергирующий агент, где прежелатинированный крахмал присутствует в количестве от приблизительно 0,5 мас.% до приблизительно 10 мас.% относительно массы штукатурного гипса. ! 4. Гипсовая стеновая панель с низким пылением по п.3, в которой нафталинсульфонатный диспергирующий агент присутствует в количестве от приблизительно 0,1 мас.% до приблизительно 3,0 мас.% относительно массы штукатурного гипса, а наиболее предпочтительно в количестве от приблизительно 0,3 мас.% до приблизительно 0,7 мас.% относительно массы штукатурного гипса. ! 5. Гипсовая стеновая панель с низким пылением по п.3, где нафталинсульфонатный диспергирующий агент находится в форме водного раствора, содержащего от приблизительно 40 мас.% до приблизительно 45 мас.% нафталинсульфоната, и водный раствор присутствует в суспензии в количестве от приблизительно 0,5 мас.% до приблизительно 2,5 мас.% относит�

Claims (25)

1. Гипсовая стеновая панель с низким пылением, включающая затвердевший гипсовый сердечник, сформированный между двумя, по существу, параллельными покровными листами, причем затвердевший гипсовый сердечник имеет общий объем пор от приблизительно 75% до приблизительно 95%, а наиболее предпочтительно от приблизительно 80% до приблизительно 92%.
2. Гипсовая стеновая панель с низким пылением по п.1, в которой затвердевший гипсовый сердечник имеет плотность от приблизительно 0,16 г/см3 (10 фунтов на куб. фут) до приблизительно 0,48 г/см3 (30 фунтов на куб. фут).
3. Гипсовая стеновая панель с низким пылением по п.1, в которой затвердевший гипсовый сердечник получен из гипсосодержащей суспензии, включающей воду, штукатурный гипс, прежелатинированный крахмал и нафталинсульфонатный диспергирующий агент, где прежелатинированный крахмал присутствует в количестве от приблизительно 0,5 мас.% до приблизительно 10 мас.% относительно массы штукатурного гипса.
4. Гипсовая стеновая панель с низким пылением по п.3, в которой нафталинсульфонатный диспергирующий агент присутствует в количестве от приблизительно 0,1 мас.% до приблизительно 3,0 мас.% относительно массы штукатурного гипса, а наиболее предпочтительно в количестве от приблизительно 0,3 мас.% до приблизительно 0,7 мас.% относительно массы штукатурного гипса.
5. Гипсовая стеновая панель с низким пылением по п.3, где нафталинсульфонатный диспергирующий агент находится в форме водного раствора, содержащего от приблизительно 40 мас.% до приблизительно 45 мас.% нафталинсульфоната, и водный раствор присутствует в суспензии в количестве от приблизительно 0,5 мас.% до приблизительно 2,5 мас.% относительно массы штукатурного гипса.
6. Гипсовая стеновая панель с низким пылением по п.3, где гипсосодержащая суспензия дополнительно включает триметафосфат натрия, присутствующий в количестве от приблизительно 0,12 мас.% до приблизительно 0,4 мас.% относительно массы штукатурного гипса.
7. Гипсовая стеновая панель с низким пылением по п.1, где стеновая панель имеет сухую массу от приблизительно 5880 г/м2 (1200 фунтов на 1000 кв. футов) до приблизительно 6860 г/м2 (1400 фунтов на 1000 кв. футов), а наиболее предпочтительно имеет сухую массу от приблизительно 2450 г/м2 (500 фунтов на 1000 кв. футов) до приблизительно 5880 г/м2 (1200 фунтов на 1000 кв. футов).
8. Гипсовая стеновая панель с низким пылением по п.1, в которой по меньшей мере 60% общего объема пор составляют воздушные поры со средним диаметром менее приблизительно 100 мкм.
9. Гипсовая стеновая панель с низким пылением по п.1, в которой по меньшей мере 10% общего объема пор составляют поры, заполненные водой, со средним диаметром менее приблизительно 5 мкм.
10. Гипсовая стеновая панель с низким пылением по п.1, в которой затвердевший гипсовый сердечник включает воздушные поры со средним диаметром более приблизительно 10 мкм и поры, заполненные водой, со средним диаметром менее приблизительно 5 мкм, и в которой отношение воздушных пор к порам, заполненным водой, составляет от приблизительно 2,3:1 до приблизительно 1,8:1.
11. Гипсовая стеновая панель с низким пылением по п.1, в которой затвердевший гипсовый сердечник включает поры со средним распределением пор по размерам от приблизительно 1 мкм до приблизительно 50 мкм.
12. Гипсовая стеновая панель с низким пылением по п.1, в которой затвердевший гипсовый сердечник включает воздушные поры с распределением пор по размерам, включающим поры более приблизительно 100 мкм в количестве приблизительно 20% от общего объема пор, поры от приблизительно 50 мкм до приблизительно 100 мкм в количестве приблизительно 30% от общего объема пор и поры менее приблизительно 50 мкм в количестве приблизительно 50% от общего объема пор.
13. Гипсовая стеновая панель с низким пылением по п.3, где гипсосодержащая суспензия дополнительно включает мыло, присутствующее в количестве от приблизительно 1,23 г/м2 (0,25 фунтов на 1000 кв. футов) до приблизительно 2,4 г/м2 (0,48 фунтов на 1000 кв. футов).
14. Гипсовая стеновая панель с низким пылением по п.3, где гипсосодержащая суспензия дополнительно включает бумажное волокно, присутствующее в количестве до приблизительно 2 мас.% относительно массы штукатурного гипса, и стекловолокно, присутствующее в количестве до приблизительно 2 мас.% относительно массы штукатурного гипса.
15. Гипсовая стеновая панель с низким пылением по п.3, где отношение вода/штукатурный гипс составляет от приблизительно 0,7 до приблизительно 1,3.
16. Гипсовая стеновая панель с низким пылением по п.1, в которой по меньшей мере один покровный лист выбран из группы, состоящей из волокнистых матов, нетканых стекловолокнистых матов, тканых стекловолокнистых матов и не содержащих целлюлозу тканей.
17. Гипсовая стеновая панель с низким пылением, включающая затвердевший гипсовый сердечник, содержащий прежелатинированный крахмал и нафталинсульфонатный диспергирующий агент, сформированный между двумя, по существу, параллельными покровными листами, причем затвердевший гипсовый сердечник имеет общий объем пор от приблизительно 80% до приблизительно 92%, где по меньшей мере 60% общего объема пор составляют воздушные поры со средним диаметром менее приблизительно 100 мкм, и затвердевший гипсовый сердечник имеет плотность от приблизительно 0,16 г/см3 (10 фунтов на куб. фут) до приблизительно 0,48 г/см3 (30 фунтов на куб. фут).
18. Гипсовая стеновая панель с низким пылением по п.17, в которой затвердевший гипсовый сердечник выполнен из гипсосодержащей суспензии, включающей штукатурный гипс, прежелатинированный крахмал и нафталинсульфонатный диспергирующий агент, где прежелатинированный крахмал присутствует в количестве от приблизительно 0,5 мас.% до приблизительно 10 мас.% относительно массы штукатурного гипса.
19. Гипсовая стеновая панель с низким пылением по п.18, где гипсосодержащая суспензия дополнительно включает триметафосфат натрия, присутствующий в количестве от приблизительно 0,12 мас.% до приблизительно 0,4 мас.% относительно массы штукатурного гипса.
20. Способ изготовления высокопрочной гипсовой стеновой панели с низким пылением, включающий стадии:
а) смешивание гипсосодержащей суспензии, включающей воду, штукатурный гипс, прежелатинированный крахмал и нафталинсульфонатный диспергирующий агент, где прежелатинированный крахмал присутствует в количестве от по меньшей мере приблизительно 0,5 мас.% до приблизительно 10 мас.% относительно массы штукатурного гипса, и где нафталинсульфонатный диспергирующий агент присутствует в количестве от приблизительно 0,1 мас.% до приблизительно 3,0 мас.% относительно массы штукатурного гипса;
b) добавление достаточного количества мыльной пены в гипсосодержащую суспензию, чтобы получить общий объем пор от приблизительно 75% до приблизительно 95% в готовой стеновой панели;
c) укладка гипсосодержащей суспензии на первый покровный лист;
d) размещение второго покровного листа поверх уложенной суспензии с формированием гипсовой стеновой панели;
e) нарезка гипсовой стеновой панели после достаточного затвердевания гипсосодержащей суспензии для резания и
f) сушка гипсовой стеновой панели для обеспечения затвердевшего гипсового сердечника в готовой стеновой панели.
21. Способ по п.20, в котором на стадии (b) добавляют достаточное количество мыльной пены для получения общего объема пор от приблизительно 80% до приблизительно 92% в затвердевшем гипсовом сердечнике.
22. Способ по п.20, в котором по меньшей мере 60% общего объема пор составляют воздушные поры со средним диаметром менее приблизительно 100 мкм.
23. Способ обработки с низким пылением гипсовой стеновой панели, включающий стадии:
a) обеспечение гипсовой стеновой панели с низким пылением, включающей затвердевший гипсовый сердечник, имеющий общий объем пор от приблизительно 75% до приблизительно 95%, где по меньшей мере 60% общего объема пор составляют воздушные поры со средним диаметром более приблизительно 10 мкм и по меньшей мере 10% общего объема пор составляют поры, заполненные водой, со средним диаметром менее приблизительно 5 мкм;
b) обработка стеновой панели с образованием гипсовой пыли и
c) поглощение существенной доли гипсовой пыли порами.
24. Способ по п.23, в котором обработку выбирают из группы, состоящей из резания, распиливания, фасонного фрезерования, надрезания/отламывания, закрепления гвоздями, закрепления винтами и сверления.
25. Способ по п.23,в котором общий объем пор затвердевшего гипсового сердечника составляет от приблизительно 80% до приблизительно 92%.
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