CN110790583A - High-strength ultra-light fireproof green heat insulation board, preparation method thereof and wall system - Google Patents
High-strength ultra-light fireproof green heat insulation board, preparation method thereof and wall system Download PDFInfo
- Publication number
- CN110790583A CN110790583A CN201810869952.5A CN201810869952A CN110790583A CN 110790583 A CN110790583 A CN 110790583A CN 201810869952 A CN201810869952 A CN 201810869952A CN 110790583 A CN110790583 A CN 110790583A
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- Prior art keywords
- palm
- water
- raw materials
- green
- heat
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- 238000009413 insulation Methods 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 39
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 30
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 23
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 23
- 239000002893 slag Substances 0.000 claims description 21
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 15
- 239000004088 foaming agent Substances 0.000 claims description 14
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 12
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- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
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- C04B18/18—Waste materials; Refuse organic
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- C04B18/248—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork from specific plants, e.g. hemp fibres
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- 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
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- C04B28/26—Silicates of the alkali metals
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- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
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- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
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- E04B1/80—Heat insulating elements slab-shaped
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- 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
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
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- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
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- E04B1/94—Protection against other undesired influences or dangers against fire
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- 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
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- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- 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
Abstract
The application discloses ultra-light fire prevention green thermal-insulated heated board of high strength weight, fire prevention green thermal-insulated heated board is formed by water and other raw materials preparation, wherein based on the weight of the raw materials except that the water, the raw materials contains 0.1-10 weight%'s palm fibre, and wherein palm fibre's fibrous length scope is 2mm to 15 mm. This applicationStill disclose the wall system that uses the green thermal-insulated heated board of fire prevention of this application. The application also discloses an environment-friendly preparation method of the high-strength ultralight fireproof green heat-insulation board. The fireproof green heat-insulation board disclosed by the invention can give consideration to various excellent properties: the density is less than or equal to 180kg/m3The heat conductivity coefficient is less than or equal to 0.055W/mK, the compression strength is more than or equal to 0.3MPa, the combustion performance meets the A1 standard, and the water absorption rate is less than or equal to 10%. This application wall system has good syllable-dividing and fire behavior. And the production method has low cost, energy conservation and environmental protection.
Description
Technical Field
The invention relates to a fireproof heat-insulation board, a preparation method thereof and a wall system comprising the same. More particularly, the invention relates to a high-strength and ultra-light fireproof green heat insulation board, an environment-friendly preparation method thereof and a wall body system comprising the same.
Background
The conventional insulation materials for building installation are generally made of light low-cost organic materials, such as Expanded Polystyrene (EPS), Extruded polystyrene foam (XPS), Polyurethane (PU), and the like. This type of material is popular because it is readily available and cost competitive. However, the use of such materials has devastating consequences. Because of their very low resistance to fire and heat, they burn very rapidly and release toxic gases when ignited. In fact, the use of such materials is responsible for the occurrence of significant fire accidents in the major cities in china and all over the world, resulting in significant loss of life.
In view of this, the national governments and regulatory authorities in countries including the academician (debye), saudi arabia, australia, etc., internationally impose strict regulations on insulation materials used in buildings, and it is necessary to perform incombustibility tests in accordance with local building regulations in different countries or regions. Taking China as an example, China related departments stipulate that the combustion performance of the building heat-insulating material must reach the level A stipulated by GB8624 and 2012. According to the Chinese national standard 'fire performance grading of building materials and products' (GB8624-2012), the fire performance of the building materials is divided into: class a-non-combustible materials (articles); class B1-flame retardant materials (articles); class B2-combustible material (article); and class B3-combustible material (article). And wherein the class A of the combustion performance of flat plate-like building materials and products is further classified into class A1 and class A2.
Currently, the heat insulating materials that can meet the class a standard are generally inorganic materials. The price of high quality and higher performance inorganic insulation materials is very high, which explains why they are less popular.
However, in terms of physical properties, inorganic heat insulating materials have the common problems of low strength, brittle texture, high water absorption, and high density. The use of such materials is often inconvenient because they require mixing or filling at the construction site, creating debris at the site and thus creating a burden on the landfill.
Inorganic materials such as cement, ceramics, foam glass and perlite are not environmentally friendly in their own production process and are high in energy consumption, being a major source of carbon emissions. For example, cement requires calcination, perlite requires calcination, ceramics requires firing, and foam glass also requires energy intensive production.
In summary, the fireproof heat insulation board made of the heat insulation material meeting the a-level standard in the prior art has the disadvantages of high energy consumption, high pollution, high cost, low strength, brittle texture, high water absorption rate, high density and inconvenient construction, and a variety of fireproof heat insulation boards with low production cost, high strength, ultralight weight and environmental protection are urgently needed.
Disclosure of Invention
The invention aims to overcome the defects that the existing fireproof heat-insulating plate has high strength, small density, environment-friendly production process, environment-friendly raw materials and good sound-insulating effect, and simultaneously meets the A1 standard of combustion performance, and provides the fireproof green heat-insulating plate with high strength and ultra-light weight.
The second purpose of the invention is to provide a preparation method of the high-strength ultralight fireproof green heat-insulation board.
The third purpose of the invention is to provide a wall body system which comprises the high-strength ultra-light environment-friendly fireproof green heat insulation board and has good sound insulation performance.
The invention provides a high-strength and ultra-light fireproof green heat-insulating board which is prepared from water and other raw materials, wherein the raw materials contain 0.1-10 wt% of palm fibers based on the weight of the raw materials except water, and the fiber length of the palm fibers ranges from 2mm to 15 mm.
The invention also provides a wall system which comprises the fireproof green heat-insulation board.
The invention also provides an environment-friendly preparation method of the high-strength ultralight fireproof green heat-insulation board, which comprises the step of mixing the palm fiber with other raw materials; wherein the feedstock contains 0.1-10 wt.% palm fibres based on the weight of the feedstock excluding water, and wherein the palm fibres have a fibre length in the range 2mm to 15 mm.
Compared with the fireproof heat-insulation board made of the heat-insulation material meeting the A-level standard in the prior art, the fireproof heat-insulation board has the advantages of high strength, small density, environment-friendly production process and environment-friendly raw materials, and simultaneously meets the A1 standard of combustion performance. The present invention utilizes the waste produced in agricultural and industrial production in an environment protecting and environment friendly way. It provides an environmentally friendly (green) material by consuming industrial waste by-products while providing ultra-light (equal to or less than 180 kg/m)3) Non-combustible (grade A1), and good sound and heat insulation effects. Specifically, the fireproof heat-insulation environment-friendly plate provided by the invention can give consideration to various excellent properties: the density is less than or equal to 180kg/m3The heat conductivity coefficient is less than or equal to 0.055W/mK, the compressive strength is more than or equal to 0.3MPa,
The combustion performance meets the A1 standard, and the water absorption is less than or equal to 10 percent. And the wall system comprising the fireproof green heat-insulation board also has the advantages and excellent sound-insulation index of more than or equal to 35 dB. The preparation method of the high-strength ultralight environment-friendly fireproof heat-insulation board is low in cost, low in energy consumption and small in environmental pollution.
Furthermore, the method of the present invention uses a very high percentage of recycled material, and its manufacturing process consumes very low energy levels and does not contaminate rivers or streams. The product of the invention is ultra-light in weight and not fragile, so that construction workers can construct on the site more easily. The present invention is a non-toxic class that is non-flammable and tested to meet european standards. In addition to the combined advantages of organic (low thermal conductivity and water absorption) and inorganic (refractory) materials, it is also cost effective.
In addition, the environmental protection concept of the invention has great social benefits for both human beings and the earth. Table 1 below provides a competition analysis of the green building of the present invention compared to common building materials.
TABLE 1
Detailed Description
The high-strength light-weight fireproof green heat-insulation board provided by the invention is prepared from water and other raw materials, wherein the raw materials contain 0.1-10 wt% of palm fibers based on the weight of the raw materials except water, and the fiber length of the palm fibers ranges from 2mm to 15 mm.
Preferably, the raw materials except water comprise active powder, a hardening agent, a foaming agent, a foam stabilizer and an optional functional additive; and wherein the reactive powder is selected from three or more of slag, coal ash, silica fume and metakaolin; the hardener is selected from two or more of sodium silicate, potassium hydroxide and sodium hydroxide; the foaming agent is selected from one or more of hydrogen peroxide and aluminum powder; the foam stabilizer is selected from one or more of calcium stearate and silicone amide; and the optional functional admixture is selected from one or more of a water reducing agent, a retarder and a pigment.
More preferably, the reactive powder is selected from three or more of 0.6 to 29.4% by weight of slag, 1.8 to 51.7% by weight of coal ash, 0.6 to 5.9% by weight of silica fume, and 0.6 to 11.8% by weight of metakaolin; the hardening agent is selected from two or more of 17.6-35.3 wt% sodium silicate, 17.6-35.3 wt% potassium silicate, 0.6-8.8 wt% potassium hydroxide, and 0.6-8.8 wt% sodium hydroxide; the foaming agent is selected from one or more of 1.8-5.9 wt% of hydrogen peroxide and 1.8-5.9 wt% of aluminum powder; the foam stabilizer is selected from one or more of 0.1-5.9 wt% of calcium stearate and 0.1-5.9 wt% of silicone amide; and the optional functional admixture is selected from one or more of 0-10 wt% of water reducing agent, 0-10 wt% of retarder and 0-10 wt% of pigment; all percentages above are based on the weight of the raw materials except water.
Further preferably, the reactive powder is selected from three or more of 5-20 wt% of slag, 5-40 wt% of coal ash, 1-4 wt% of silica fume, and 5-11 wt% of metakaolin; the hardening agent is selected from two or more of 20-30 wt% sodium silicate, 20-30 wt% potassium silicate, 1-6 wt% potassium hydroxide and 1-6 wt% sodium hydroxide; the foaming agent is selected from one or more of 2-5 wt% of hydrogen peroxide and 2-5 wt% of aluminum powder; the foam stabilizer is selected from one or more of 0.1-4 wt% of calcium stearate and 0.1-4 wt% of silicone amide; the optional functional admixture is selected from one or more of 0-6 wt% of water reducing agent, 0-6 wt% of retarder and 0-6 wt% of pigment; and 2-6 wt% palm fibre; all percentages above are based on the weight of the raw materials except water.
Most preferably, the reactive powder is selected from three or more of 9-20 wt% slag, 10-40 wt% coal ash, 2-4 wt% silica fume, and 5-10 wt% metakaolin; the hardening agent is two or more selected from the group consisting of 20-28 wt% sodium silicate, 20-28 wt% potassium silicate, 1-5 wt% potassium hydroxide, and 1-5 wt% sodium hydroxide; the foaming agent is selected from one or more of 2-4.5 wt% of hydrogen peroxide and 2-4.5 wt% of aluminum powder; the foam stabilizer is selected from one or more of 0.1-3.5 wt% of calcium stearate and 0.1-3.5 wt% of silicone amide; the optional functional admixture is selected from one or more of 0-5 wt% of water reducing agent, 0-5 wt% of retarder and 0-5 wt% of pigment; and 2-5 wt% palm fibre; all percentages above are based on the weight of the raw materials except water.
The palm fibre according to the invention is obtained from a plant of the family palmaceae, preferably from a plant of the genus palmae of the family palmaceae. Preferably, the palm fibres may be a mass consisting essentially of fibrous material resulting from the extrusion of oil from palm fruit, and the palm fibres have a water content of less than 20% and an oil content of less than 15%. Preferably the palm fibres have a water content of less than 15% and an oil content of less than 8%. It is further preferred that the palm fibres have a water content of less than 10% and an oil content of less than 5%. Because the high-strength ultralight environment-friendly fireproof heat-insulation board contains residual oil, no additional surfactant is needed to be added when the high-strength ultralight environment-friendly fireproof heat-insulation board is prepared. The palm fiber may also be leaf sheath fiber or coconut shell fiber of plant of Palmae.
Preferably, the feedstock contains 2-6 wt% palm fibres based on the weight of the feedstock excluding water, and wherein the palm fibres have a fibre length in the range 3mm to 9 mm. More preferably, the feedstock contains 3-6 wt% palm fibres based on the weight of the feedstock excluding water, and wherein the palm fibres have a fibre length in the range 7mm to 9 mm. The palm fibres may have a fibre length of 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9, or 9 millimetres. Preferably the palm fibres have a fibre length in the range 7.5 to 8.5 mm. Palm fibers of a particular length may be processed by shearing equipment (e.g., a blend fiber shear, etc.). A deviation in the length of the palm fibres of 0.5-1 mm is acceptable. Furthermore, the palm fibres according to the invention may also be a mixture of palm fibres having different lengths. For example, 30-70% of the palm fibre mixture has a fibre length of 2-6mm, 5-40% has a fibre length of 7-9mm, 3-30% has a fibre length of 10-15 mm. Preferably, 40-60% of the palm fibre mixture has a fibre length of 2-6mm, 15-35% has a fibre length of 7-9mm, 5-25% has a fibre length of 10-15 mm. Preferably, the palm fibers are a mixture of palm fibers with different lengths, and the mixture can further improve the strength and toughness of the finally obtained fireproof green heat-insulating and heat-preserving board.
In addition, the inventor of the invention finds that the palm fiber content in the raw materials except water in the fireproof green heat-insulation board can be adjusted according to different climates of application places so as to obtain better performance. For example, when the final panel is installed in an area having a mediterranean climate, the feedstock contains 4-10 wt% palm fibres based on the weight of the feedstock excluding water. When the final board is installed in a subtropical monsoon climate zone, the feedstock contains 0.5-5 wt% palm fibres based on the weight of the feedstock excluding water. When the final panel is installed in an area having a temperate monsoon climate, the feedstock contains 3-7 wt% palm fibre based on the weight of the feedstock excluding water. When the final panel is installed in a subtropical climate zone, the raw material comprises 0.7-6 wt.% palm fibre based on the weight of the raw material excluding water. When the final panel is installed in an area with a wet continental climate, the raw material comprises 4-9 wt% palm fibres based on the weight of the raw material excluding water.
The coal ash, namely fine ash, belongs to common solid waste in industrial pollutants. This is a waste by-product of the production of coal as a heat generating agent from an industrial or power station. Mainly produced by burning coal, and the main components are metal oxides FeO and Fe2O3、CaO、MgO、Na2O、TiO2Iso and non-metal oxide SiO2. For example, the powder collected in the flue gas of a pulverized coal furnace in a power plant is called fly ash. Preferably, the coal ash comprises SiO2、Al2O3、Fe2O3And CaO, and wherein the CaO content does not exceed 10 wt%. More preferably, the coal ash is F-type coal ash specified in the Chinese national standard GB/T1596-2005.
The slag of the present invention is a by-product in a blast furnace iron making process. Which comprises SiO2、Al2O3MgO, and CaO. Preferably, the slag is ground granulated blast furnace slag based on standard GB/T18046-2008. Preferably, the slag has a particle size in the range of 5-40mm, preferably 5-20mm, most preferably 5-10 mm. More preferably, the slag is blast furnace slag that conforms to the grade of S95 specified in the Chinese national standard GB/T18046-2008.
Silica Fume (Silica Fume), also known as microsilica (CAS No. 69012-64-2, EINECS No. 273-761-1), is an amorphous (non-crystalline) polymorph of Silica. It is an ultra-fine powder collected as a by-product of silicon and ferrosilicon production, consisting of spherical particles with an average particle size of about 150 nm.
The metakaolin of the present invention is derived from the dehydration of kaolin. By providing heat to the kaolin above 700 ℃, it reforms the kaolin into metakaolin. After dehydration, it contains a high percentage of SiO2And Al2O3For producing geopolymer structures. The particle size of the metakaolin is in the range of 5 to 40mm, preferably 5 to 20mm, most preferably 5 to 10 mm.
The blowing agents used in the present invention do not release any harmful gases upon foaming. The foaming agent is selected from one or more of 1.8-5.9 wt% of hydrogen peroxide and 1.8-5.9 wt% of aluminum powder. Preferably, the blowing agent is a 25 to 60 wt% aqueous hydrogen peroxide solution. More preferably, the hydrogen peroxide is a 25-40 wt% aqueous hydrogen peroxide solution.
The hardening agent used in this application comprises water glass which is an aqueous dispersion of sodium or potassium silicate having a solids content of 10 to 40% by weight. Preferably, the hardening agent is a mixture of sodium silicate and sodium hydroxide or a mixture of potassium silicate and potassium hydroxide. Preferably, sodium silicate containing sodium hydroxide is desired. By providing sodium hydroxide, the modulus ratio of sodium silicate can be varied. However, the main purpose of the sodium hydroxide addition is to increase the strength and dissolve more Si from the active powder4+And Al3+Ions. Preferably, the modulus ratio of the water glass is 3.1 to 3.4 modulus. Preferably, the sodium silicate aqueous dispersion is liquid sodium silicate which meets the 'liquid-2' model specified in the Chinese national standard GB/T4209-2008. The sodium silicate requires 99% wt of sodium and the modulus ratio of the water glass becomes 1.2-1.6 modulus. The solids content of the water glass according to the invention is < 40%, more preferably 20 to 40% by weight, most preferably 30 to 40% by weight.
Foam stabilizers for use herein include calcium stearate or calcium stearate. Preferably, technical grade calcium stearate is required.
The water reducing agent may be a water reducing agent commonly used in the art, such as lignosulfonates, naphthalene sulfonate formaldehyde polymers, and the like.
The retarder may be one commonly used in the art, such as calcium saccharate, gluconate, citric acid, tartaric acid and its salts, zinc salts, phosphate salts, and the like.
The pigment may be a pigment commonly used in the art, such as iron oxide, manganese dioxide, chromium oxide, cobalt blue, carbon black, and the like.
Most preferably, the coal ash is coal ash from coal fired power stations, the slag is slag from steel mills, and the palm fibres are from oil palm fruit residue obtained after extraction of palm oil. Thus, the solid wastes can be effectively utilized and changed into valuables. It has the advantages of low energy consumption and no waste discharge.
The invention also provides a wall body system comprising the fireproof green heat insulation board. The fireproof green heat insulation plate can be arranged in the center of a wall system or on one side or two sides of the main body part of the wall system. The wall body system not only meets the requirements of fire prevention and heat insulation, but also has excellent sound insulation performance.
The invention also provides an environment-friendly preparation method of the high-strength ultralight fireproof green heat-insulation board, which comprises the step of mixing the palm fiber with other raw materials; wherein the feedstock contains 0.1-10 wt.% palm fibres based on the weight of the feedstock excluding water, and wherein the palm fibres have a fibre length in the range 2mm to 15 mm.
Preferably, the environment-friendly preparation method of the high-strength ultralight fireproof green heat-insulation board comprises the following steps:
a) mixing water, active powder, a hardening agent, a foam stabilizer, palm fiber and optional functional additives at the rotation speed of 400-800rpm until the mixture is homogeneous, wherein the volume ratio of the water to the raw materials except water is 1: 50-1: 2;
b) adding a blowing agent to the mixture of a) for 3-15 seconds at a rotational speed of 700 and 1000rpm to produce a cell structure;
c) pouring the mixture of b) into a container mold and curing for 1-12 hours;
d) demolding and cutting the cured board of c) to the desired size, and
e) continuing to cure the cut plate of d) for 1-30 days; the raw materials except water comprise active powder, a hardening agent, a foaming agent, a foam stabilizer and optional functional additives; and wherein
The active powder is selected from three or more of slag, coal ash, silica fume and metakaolin;
the hardener is selected from two or more of sodium silicate, potassium hydroxide and sodium hydroxide;
the foaming agent is selected from one or more of hydrogen peroxide and aluminum powder;
the foam stabilizer is selected from one or more of calcium stearate and silicone amide; and
the optional functional admixture is selected from one or more of a water reducing agent, a retarder and a pigment.
Further preferably, the environment-friendly preparation method of the high-strength ultralight fireproof green heat-insulation board comprises the following steps: a) mixing water, active powder, a hardening agent, a foam stabilizer, palm fiber and optional functional additives at the rotation speed of 600-800rpm until the mixture is homogeneous, wherein the volume ratio of the water to the raw materials except water is 1: 30-1: 4; b) adding a blowing agent to the mixture of a) for 5-15 seconds at a rotational speed of 860 and 960rpm to produce a cell structure; c) pouring the mixture of b) into a container mold and curing for 8-12 hours; d) demolding and cutting the cured board of c) to the desired size, and e) continuing to cure the cut board of d) for 7-28 days.
More preferably wherein said step b) is carried out at a temperature in the range of from 15 to 35 ℃; step c) is carried out within the temperature range of less than or equal to 100 ℃; and the step c) is solidified under the humidity of more than or equal to 50 percent; when the mixture of step c) is sampled to 190-270kg/m3When the density is within the range, step d) is carried out.
The performance of the fireproof green heat-insulation board/wall system is tested according to the following standards:
1. the density measurement is based on JC/T2200-2013;
2. the compressive strength test method is based on JC/T2200-2013;
3. the combustion performance method is based on BS EN 13501-1: 2007+ A1: 2009 or GB 8624-2012;
4. the water absorption rate is based on JC/T2200-2013; and
5. the sound insulation performance is based on BS EN ISO 140-3: 1995.
the present invention will be further described with reference to the following examples.
Example 1
The embodiment illustrates the fireproof green heat-insulation board and the preparation method thereof, and the raw material ratio is shown in the following table 2:
TABLE 2
1. Pretreatment of palm fibre
The palm fiber is derived from oil palm residue obtained after extracting palm oil from Henghua resource cluster, the water content of the palm fiber is 20%, and the oil content is 8%. The shearing apparatus is used to produce palm fibres having the above defined length.
2. Preparation of the plates
a) Mixing water, active powder, a hardening agent, a foam stabilizer, palm fiber and pigment at the rotating speed of 600rpm until the mixture is homogeneous;
b) adding a blowing agent to the mixture of a) at 29 ℃ for 6 seconds at a speed of 900rpm to produce a cell structure;
c) pouring the mixture of b) into a container mold and curing at 30 ℃ for 12 hours at 70% humidity;
d) sampling the mixture of step c) to a density of 200kg/m3Demolding and cutting the cured board of c) to a test size of 15cmX15cm, and
e) curing of the cut plates of d) was continued for 28 days.
3. Results of board Performance test
The test results shown in table 3 are from at least 20 samples. And an air sound insulation effect is obtained by a wall system with panels mounted on both sides.
TABLE 3
| Density (kg/m)3) | ≤180(JC/T-2200) |
| Fire rating | Grade A1 (GB8624-2012) |
| Compressive strength (MPa) | ＞0.30(JC/T-2200) |
| Thermal conductivity | 0.055w/m.k(JC/T-2200) |
| Water absorption | ＜10％(JC/T-2200) |
| Asbestos fiber | Undetected (EPA-600) |
| Content of harmful substance | Reach standard (GL-008- |
| Air sound insulation performance of wall system | ＞35dB(BS EN ISO 140-3) |
| Fire protection of wall systems | ＞2-Hr(BS EN 1364-1) |
Other embodiments
The inventors also selected combinations within the numerical ranges of the "detailed description" of the invention, prepared and tested fire-resistant green insulation according to the method of example 1And (5) warming the plate. As a result, the fireproof green heat-insulating heat-preserving plate of all the embodiments can realize the following excellent performances: the density is less than or equal to 180kg/m3The heat conductivity coefficient is less than or equal to 0.055W/mK, the compression strength is more than or equal to 0.3MPa, the combustion performance meets the A1 standard, and the water absorption rate is less than or equal to 10%. And this application is equipped with the wall system of above green thermal-insulated heated board of preventing fires still has good sound insulation performance.
All publications and patent applications mentioned in this specification are indicative of the level of skill of those skilled in the art to which this invention pertains. All publications and patent applications are herein incorporated by reference to the same extent as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference.
While certain embodiments have been described, they have been presented by way of example only, and are not intended to limit the scope of the invention. The accompanying claims and their equivalents in this specification are to be construed to cover such forms or modifications as would fall within the scope and spirit of the invention.
Claims (17)
1. A high-strength ultra-light-weight fireproof green heat-insulating board is prepared from water and other raw materials, wherein the raw materials contain 0.1-10 wt% of palm fibers based on the weight of the raw materials except water, and wherein the fiber length of the palm fibers ranges from 2mm to 15 mm.
2. The fireproof green heat insulation board according to claim 1, wherein the raw materials except water comprise active powder, a hardening agent, a foaming agent, a foam stabilizer and an optional functional additive; and wherein
The active powder is selected from three or more of slag, coal ash, silica fume and metakaolin;
the hardener is selected from two or more of sodium silicate, potassium hydroxide and sodium hydroxide;
the foaming agent is selected from one or more of hydrogen peroxide and aluminum powder;
the foam stabilizer is selected from one or more of calcium stearate and silicone amide; and
the optional functional admixture is selected from one or more of a water reducing agent, a retarder and a pigment.
3. A fire-proof green thermal insulating and heat-preserving panel as claimed in claim 2,
the active powder is selected from three or more of 0.6-29.4 wt% of slag, 1.8-51.7 wt% of coal ash, 0.6-5.9 wt% of silica fume and 0.6-11.8 wt% of metakaolin;
the hardening agent is selected from two or more of 17.6-35.3 wt% sodium silicate, 17.6-35.3 wt% potassium silicate, 0.6-8.8 wt% potassium hydroxide, and 0.6-8.8 wt% sodium hydroxide;
the foaming agent is selected from one or more of 1.8-5.9 wt% of hydrogen peroxide and 1.8-5.9 wt% of aluminum powder;
the foam stabilizer is selected from one or more of 0.1-5.9 wt% of calcium stearate and 0.1-5.9 wt% of silicone amide; and
the optional functional admixture is selected from one or more of 0-10 wt% of water reducing agent, 0-10 wt% of retarder and 0-10 wt% of pigment;
all percentages above are based on the weight of the raw materials except water.
4. A fire-proof green thermal insulating and heat-preserving panel as claimed in claim 3,
the active powder is selected from three or more of 5-20 wt% of slag, 5-40 wt% of coal ash, 1-4 wt% of silica fume and 5-11 wt% of metakaolin;
the hardening agent is selected from two or more of 20-30 wt% sodium silicate, 20-30 wt% potassium silicate, 1-6 wt% potassium hydroxide and 1-6 wt% sodium hydroxide;
the foaming agent is selected from one or more of 2-5 wt% of hydrogen peroxide and 2-5 wt% of aluminum powder;
the foam stabilizer is selected from one or more of 0.1-4 wt% of calcium stearate and 0.1-4 wt% of silicone amide;
the optional functional admixture is selected from one or more of 0-6 wt% of water reducing agent, 0-6 wt% of retarder and 0-6 wt% of pigment; and
2-6% by weight of palm fibres;
all percentages above are based on the weight of the raw materials except water.
5. The fire-resistant green thermal insulating panel of claim 1, wherein the feedstock contains 2-6 wt% of palm fibers based on the weight of the feedstock excluding water, and wherein the palm fibers have a fiber length in the range of 3mm to 9 mm.
6. A fire-resistant green thermal insulating and heat preserving panel as claimed in claim 1, wherein 30-70% of the palm fibres have a fibre length of 2-6mm, 5-40% have a fibre length of 7-9mm, 3-30% have a fibre length of 10-15 mm.
7. The fire-resistant green thermal insulating panel according to any one of claims 1 to 6, wherein the palm fibres are from oil palm fruit residues obtained after extraction of palm oil, and the palm fibres have a water content of less than 20% and an oil content of less than 15%.
8. The fire-proof green thermal insulation board according to any one of claims 2 to 7, wherein the coal ash contains SiO2、Al2O3、Fe2O3And CaO, and wherein the CaO content does not exceed 10 wt%.
9. The fireproof green heat-insulation board according to any one of claims 2 to 8, wherein the coal ash is class F fly ash specified in Chinese national standard GB/T1596-2005.
10. The fireproof green heat-insulating board according to any one of claims 2 to 9, wherein the slag is blast furnace slag meeting the specification of the Chinese national standard GB/T18046-2008 of S95 level.
11. The fire-proof green thermal insulating panel according to any one of claims 2 to 10, wherein the hydrogen peroxide is 20 to 60 wt% aqueous hydrogen peroxide; and the sodium silicate is an aqueous sodium silicate dispersion having a solids content of 20-40.
12. The fireproof green heat-insulating and heat-preserving plate of any one of claims 11, wherein the sodium silicate aqueous dispersion is liquid sodium silicate meeting the "liquid-2" model specified in the national standard of china GB/T4209-2008.
13. The fire-resistant green thermal insulating panel according to any one of claims 1 to 12, wherein the coal ash is coal ash from coal fired power stations, the slag is slag from steel mills, and the palm fibre is from oil palm fruit residue obtained after palm oil extraction.
14. A wall system comprising a fire green insulating panel according to any one of claims 1 to 13.
15. The environmentally friendly method of making a high strength ultra light fire proof green thermal insulation panel as claimed in any one of claims 1 to 13, said method comprising the steps of mixing palm fiber with other raw materials; wherein the feedstock contains 0.1-10 wt.% palm fibres based on the weight of the feedstock excluding water, and wherein the palm fibres have a fibre length in the range 2mm to 15 mm.
16. The method of claim 15, wherein the method comprises the steps of:
a) mixing water, active powder, a hardening agent, a foam stabilizer, palm fiber and optional functional additives at the rotation speed of 400-800rpm until the mixture is homogeneous, wherein the volume ratio of the water to the raw materials except water is 1: 50-1: 2;
b) adding a blowing agent to the mixture of a) for 3-15 seconds at a rotational speed of 700 and 1000rpm to produce a cell structure;
c) pouring the mixture of b) into a container mold and curing for 1-12 hours;
d) demolding and cutting the cured board of c) to the desired size, and
e) continuing to cure the cut plate of d) for 1-30 days; the raw materials except water comprise active powder, a hardening agent, a foaming agent, a foam stabilizer and optional functional additives; and wherein
The active powder is selected from three or more of slag, coal ash, silica fume and metakaolin;
the hardener is selected from two or more of sodium silicate, potassium hydroxide and sodium hydroxide;
the foaming agent is selected from one or more of hydrogen peroxide and aluminum powder;
the foam stabilizer is selected from one or more of calcium stearate and silicone amide; and
the optional functional admixture is selected from one or more of a water reducing agent, a retarder and a pigment.
17. The method of claim 16, wherein said step b) is performed at a temperature in the range of 15-35 ℃; step c) is carried out within the temperature range of less than or equal to 100 ℃; and the step c) is solidified under the humidity of more than or equal to 50 percent; when the mixture of step c) is sampled to 190-270kg/m3When the density is within the range, step d) is carried out.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869952.5A CN110790583A (en) | 2018-08-01 | 2018-08-01 | High-strength ultra-light fireproof green heat insulation board, preparation method thereof and wall system |
| CN201980037141.1A CN112292362A (en) | 2018-08-01 | 2019-06-12 | High-strength ultralight fireproof green heat-insulation core material plate and preparation method thereof |
| PCT/CN2019/090983 WO2020024704A1 (en) | 2018-08-01 | 2019-06-12 | A high-strength ultra-light weight fireproof green thermal insulation core material board and the eco-friendly manufacturing process |
| CN201980037009.0A CN112313185A (en) | 2018-08-01 | 2019-07-31 | High-strength ultra-light fireproof green heat-insulation geopolymer plate, environment-friendly preparation method thereof and product thereof |
| PCT/CN2019/098572 WO2020024975A1 (en) | 2018-08-01 | 2019-07-31 | A high-strength ultra-light weight fireproof green thermal insulation geo panel, the eco-friendly manufacturing process and articles thereof |
| PH12021550219A PH12021550219A1 (en) | 2018-08-01 | 2021-01-28 | A high-strength ultra-light weight fireproof green thermal insulation core material board and the eco-friendly manufacturing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869952.5A CN110790583A (en) | 2018-08-01 | 2018-08-01 | High-strength ultra-light fireproof green heat insulation board, preparation method thereof and wall system |
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| CN110790583A true CN110790583A (en) | 2020-02-14 |
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|---|---|---|---|
| CN201810869952.5A Pending CN110790583A (en) | 2018-08-01 | 2018-08-01 | High-strength ultra-light fireproof green heat insulation board, preparation method thereof and wall system |
| CN201980037141.1A Pending CN112292362A (en) | 2018-08-01 | 2019-06-12 | High-strength ultralight fireproof green heat-insulation core material plate and preparation method thereof |
| CN201980037009.0A Pending CN112313185A (en) | 2018-08-01 | 2019-07-31 | High-strength ultra-light fireproof green heat-insulation geopolymer plate, environment-friendly preparation method thereof and product thereof |
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| CN201980037141.1A Pending CN112292362A (en) | 2018-08-01 | 2019-06-12 | High-strength ultralight fireproof green heat-insulation core material plate and preparation method thereof |
| CN201980037009.0A Pending CN112313185A (en) | 2018-08-01 | 2019-07-31 | High-strength ultra-light fireproof green heat-insulation geopolymer plate, environment-friendly preparation method thereof and product thereof |
Country Status (3)
| Country | Link |
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| CN (3) | CN110790583A (en) |
| PH (1) | PH12021550219A1 (en) |
| WO (2) | WO2020024704A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11255052B1 (en) | 2020-09-30 | 2022-02-22 | United Arab Emirates University | Thermal insulating material made from date palm surface fibers |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112652782B (en) * | 2020-12-09 | 2021-12-21 | 广东至道先进土木工程材料技术研究有限公司 | Environment-friendly geopolymer battery and preparation method thereof |
| CN114634336A (en) * | 2020-12-16 | 2022-06-17 | 湖南登科材料科技有限公司 | Wall thermal insulation material prepared from straw and preparation method thereof |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20050004751A (en) * | 2004-12-23 | 2005-01-12 | 손진호 | method for producing mineralized plant-fiber panel and mineralized plant-fiber panel |
| TWI274804B (en) * | 2005-06-21 | 2007-03-01 | Wei-Lin Wu | Palm fiber based mineralized board and manufacturing method thereof |
| US20110281066A1 (en) * | 2010-05-13 | 2011-11-17 | Rodney Andrews | Lightweight fire resistant covering for structures |
| HK1147164A2 (en) * | 2011-03-18 | 2011-07-29 | Palmeco Tech Ltd | Board made from oil palm fiber and magnesium oxide and the manufacture process thereof |
| WO2014094864A1 (en) * | 2012-12-20 | 2014-06-26 | Qim Projekt & Consult Gmbh | Building material composition for producing a lightweight concrete |
| CN103980000B (en) * | 2014-05-30 | 2016-01-20 | 汪清明 | A kind of fiber reinforcement aerated insulation plate and preparation technology thereof |
| CN104230280B (en) * | 2014-09-12 | 2017-01-18 | 武汉理工大学 | Low-shrinkage sludge ceramsite alkali-activated full-slag foam concrete plate and preparation method thereof |
| KR101682084B1 (en) * | 2015-03-18 | 2016-12-02 | 장정훈 | Incombustible board and Manufacturing method thereof |
| JP2017186186A (en) * | 2016-04-01 | 2017-10-12 | ケイミュー株式会社 | Geopolymer composition, and geopolymer cured body |
| CN106747621A (en) * | 2016-12-07 | 2017-05-31 | 中国科学院青岛生物能源与过程研究所 | A kind of preparation method of waterproof, non-ignitable flyash/metakaolin base warming plate |
| CN108218310A (en) * | 2017-12-26 | 2018-06-29 | 同济大学 | It is a kind of for geopolymer of 3D printing and preparation method thereof |
-
2018
- 2018-08-01 CN CN201810869952.5A patent/CN110790583A/en active Pending
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2019
- 2019-06-12 WO PCT/CN2019/090983 patent/WO2020024704A1/en active Application Filing
- 2019-06-12 CN CN201980037141.1A patent/CN112292362A/en active Pending
- 2019-07-31 CN CN201980037009.0A patent/CN112313185A/en active Pending
- 2019-07-31 WO PCT/CN2019/098572 patent/WO2020024975A1/en active Application Filing
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11255052B1 (en) | 2020-09-30 | 2022-02-22 | United Arab Emirates University | Thermal insulating material made from date palm surface fibers |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020024704A1 (en) | 2020-02-06 |
| CN112292362A (en) | 2021-01-29 |
| CN112313185A (en) | 2021-02-02 |
| WO2020024975A1 (en) | 2020-02-06 |
| PH12021550219A1 (en) | 2021-10-11 |
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