CN105060921A - Composition used as board, ceiling board and preparation method of ceiling board - Google Patents
Composition used as board, ceiling board and preparation method of ceiling board Download PDFInfo
- Publication number
- CN105060921A CN105060921A CN201510497979.2A CN201510497979A CN105060921A CN 105060921 A CN105060921 A CN 105060921A CN 201510497979 A CN201510497979 A CN 201510497979A CN 105060921 A CN105060921 A CN 105060921A
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- Prior art keywords
- slag
- ceiling board
- present
- flyash
- composition
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Links
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 47
- 239000002893 slag Substances 0.000 claims abstract description 39
- 239000010881 fly ash Substances 0.000 claims abstract description 34
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 34
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims abstract description 16
- 239000007858 starting material Substances 0.000 claims description 42
- 239000011343 solid material Substances 0.000 claims description 33
- 235000019353 potassium silicate Nutrition 0.000 claims description 28
- 238000007711 solidification Methods 0.000 claims description 21
- 230000008023 solidification Effects 0.000 claims description 21
- 238000005245 sintering Methods 0.000 claims description 14
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000002817 coal dust Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 241000609240 Ambelania acida Species 0.000 claims description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 4
- 239000010905 bagasse Substances 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 39
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 239000002994 raw material Substances 0.000 abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005452 bending Methods 0.000 abstract description 8
- 239000004115 Sodium Silicate Substances 0.000 abstract description 6
- 229910052911 sodium silicate Inorganic materials 0.000 abstract description 6
- 238000007596 consolidation process Methods 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract 1
- 239000000378 calcium silicate Substances 0.000 abstract 1
- 229910052918 calcium silicate Inorganic materials 0.000 abstract 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000002585 base Substances 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 238000000034 method Methods 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000000758 substrate Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 239000000843 powder Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- -1 and wherein Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000005292 diamagnetic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000005315 stained glass Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Processing Of Solid Wastes (AREA)
- Finishing Walls (AREA)
- Glass Compositions (AREA)
Abstract
The invention provides composition used as a board. The composition comprises a liquid raw material and a solid raw material, wherein the solid raw material comprises fly ash, slag and a pore-forming agent; the liquid raw material comprises alkali hydroxides and sodium silicate; the slag comprises SiO2, Al2O3 and CaO. According to the composition, main components, namely, SiO2 and Al2O3, of the slag and the fly ash react with the liquid raw material, a material adopting a three-dimensional network structure can be formed, the strength of the board can be significantly enhanced, CaO of the slag reacts with the sodium silicate of the liquid raw material, calcium silicate is produced, and the consolidation strength can be further enhanced. Besides, the board made of the composition has functions of moisture absorption, formaldehyde absorption and sound absorption. The invention further provides a ceiling board and a preparation method thereof. Experimental results indicate that the bending strength of the ceiling board made of the composition is 17.7 MPa, and the formaldehyde purification ratio is 30%-67%.
Description
Technical field
The invention belongs to building material technical field, particularly relate to a kind of composition, ceiling board and preparation method thereof that are used as sheet material.
Background technology
Furred ceiling refers to the top finishing of house living environment, and briefly, just referring to the finishing of top ceiling, is one of integral part of upholstery.Furred ceiling has insulation, heat insulation, sound insulation, the effect of sound absorption, be also electrically, air conditioner, communication and the engineering such as fire prevention, warning line equipment hidden layer.
Furred ceiling is different according to the material of decorative sheet, classifies also not identical.Furred ceiling finishing material is the Main Basis distinguishing furred ceiling title, mainly contains: light steel keel gypsum board furred ceiling, plaster tablet suspended ceiling, mineral wool board ceiling, clamping plate furred ceiling, special-shaped rectangular aluminum-pinch furred ceiling, square plating paint aluminum-pinch furred ceiling, stained glass furred ceiling, aluminium honeycomb perforated sound-absorbing plate furred ceiling etc.
In prior art, publication number is that the Chinese patent of CN103242019A discloses a kind of finishing ceiling board, proportioning is as follows: 28 parts ~ 30 parts, flyash, cement 25 parts ~ 27 parts, volcanic rock fibre 14 parts ~ 16 parts, mica powder 5 parts ~ 7 parts, Vltra tears 0.8 part ~ 1.2 parts, coupling agent Aluminate 0.5 part ~ 1 part, 21 parts ~ 23 parts, water.This ceiling board has good diamagnetic performance, but intensity is poor, easily occurs fracture in use.
Summary of the invention
The object of the present invention is to provide a kind of composition, ceiling board and preparation method thereof that are used as sheet material, the ceiling board that sheet material formula provided by the invention obtains has higher intensity.
The invention provides a kind of composition being used as sheet material, comprise liquid starting material and solid material;
Described solid material comprises flyash, slag and pore-forming material;
Described liquid starting material comprises alkali metal hydroxide and water glass;
Described slag comprises SiO
2, Al
2o
3and CaO.
Preferably, the mass ratio of described solid material and liquid starting material is 100:(1 ~ 20);
The mass ratio of described alkali metal hydroxide and water glass is (5 ~ 40): 100.
Preferably, the particle diameter of described flyash is 1 ~ 150 μm;
The density of described flyash is 1.8 ~ 2.5g/cm
3.
Preferably, in massfraction, described slag comprises the SiO of 20 ~ 30%
2, 10 ~ 20% Al
2o
3with 20 ~ 40% CaO;
The mass ratio of described flyash and slag is 100:(1 ~ 20).
Preferably, described pore-forming material comprises one or more in coal dust, carboxymethyl cellulose and bagasse;
The mass ratio of described flyash and pore-forming material is 100:(1 ~ 5).
The invention provides a kind of ceiling board, obtained by the composition of above-mentioned sheet material.
The invention provides a kind of preparation method of ceiling board, comprise the following steps:
A) by liquid starting material and solid material mixing, obtain compound, described liquid starting material comprises: alkali metal hydroxide and water glass, and described solid material comprises: flyash, slag and pore-forming material, and described slag comprises SiO
2, Al
2o
3and CaO;
B) described compound is carried out successively shaping, solidification, dry and sintering, obtain ceiling board.
Preferably, described step B) in solidification temperature be 20 ~ 100 DEG C;
The humidity of described solidification is 70 ~ 90%;
The time of described solidification is 4 ~ 24 hours.
Preferably, the temperature of described oven dry is 105 ~ 120 DEG C.
Preferably, the temperature of described sintering is 400 ~ 1200 DEG C;
The time of described sintering is 50 ~ 90min.
The invention provides a kind of composition being used as sheet material, comprise liquid starting material and solid material, described solid material comprises: flyash, slag and pore-forming material; Described liquid starting material comprises: alkali metal hydroxide and water glass; Described slag comprises SiO
2, Al
2o
3and CaO.In composition provided by the invention, the main component SiO of slag and flyash
2and Al
2o
3react with liquid starting material, can form the material of dimensional network structure, can improve the intensity of sheet material significantly, the CaO in slag and the water glass in liquid starting material react and generate Calucium Silicate powder, can improve the consolidation strength of sheet material further.In addition, the sheet material that formula provided by the invention obtains also has moisture absorption, absorbs the function of formaldehyde and sound-absorbing.Experimental result shows, the bending strength of the ceiling board adopting board composition provided by the invention to prepare is 17.7MPa, and purifying formaldehyde rate is 30 ~ 67%.
Embodiment
The invention provides a kind of composition being used as sheet material, comprise liquid starting material and solid material,
Described solid material comprises: flyash, slag and pore-forming material;
Described liquid starting material comprises: alkali metal hydroxide and water glass;
Described slag comprises SiO
2, Al
2o
3and CaO.
The sheet material that composition provided by the invention obtains has higher intensity.
The composition being used as sheet material provided by the invention comprises solid material, and described solid material comprises flyash, slag and pore-forming material.
In the present invention, described flyash preferably includes SiO
2, Al
2o
3and CaO, described SiO
2massfraction be preferably 40 ~ 60%, be more preferably 45 ~ 55%; Described Al
2o
3massfraction be preferably 15 ~ 40%, be more preferably 20 ~ 35%; The massfraction of described CaO is preferably 5 ~ 10%, is more preferably 6 ~ 9%; The particle diameter of described flyash is 1 ~ 150 μm, wherein, with volume fraction, the flyash particle diameter of more than 90% is preferably less than 150 μm, is more preferably less than 140 μm, is most preferably less than 130 μm, the flyash particle diameter of more than 70% is less than 50 μm, is more preferably less than 40 μm, is most preferably less than 30 μm.The density of described flyash is preferably 1.8-2.5g/cm
3, be more preferably 2.0 ~ 2.3g/cm
3.In the present invention, described flyash as main raw material, SiO wherein
2, Al
2o
3react with liquid starting material, form cubic network shape structured material, contribute to the intensity strengthening sheet material.
In the present invention, described slag comprises SiO
2, Al
2o
3and CaO, described SiO
2massfraction be preferably 20 ~ 30%, be more preferably 23 ~ 25%; Described Al
2o
3massfraction be preferably 10 ~ 20%, be more preferably 12 ~ 18%; The massfraction of described CaO is preferably 20 ~ 40%, is more preferably 25 ~ 35%; In the present invention, described slag is as enhancing and regulate additive time of coagulation, and the water glass in CaO wherein and liquid starting material can generate Calucium Silicate powder, can improve the consolidation strength of sheet material, and shorten time of coagulation.The source of the present invention to described slag does not have special restriction, preferably adopts s95 level slag.Concrete, in an embodiment of the present invention, the s95 level slag that Guangzhou Yuan Guan commerce and trade company limited provides can be adopted.
In the present invention, described pore-forming material preferably includes one or more in coal dust, carboxymethyl cellulose and bagasse, and wherein, coal dust preferably includes the carbon of 60 ~ 80%, more preferably comprises the carbon of 70%; The particle diameter of described coal dust is preferably 80 ~ 150 μm, is more preferably 90 ~ 140 μm, most preferably is 100 ~ 130 μm; The source of the present invention to described pore-forming material does not have special restriction, and the present invention preferably adopts the waste residue of sucrose factory, and described carboxymethyl cellulose adopts common commercial goods.
In the present invention, the mass ratio of described flyash and slag is preferably 100:(1 ~ 20), be more preferably 100:(5 ~ 15), most preferably be 100:(8 ~ 13); The mass ratio of described flyash and pore-forming material is preferably 100:(1 ~ 5), be more preferably 100:(2 ~ 4), most preferably be 100:3.
Sheet material formula provided by the invention comprises liquid starting material, and described liquid starting material comprises alkali metal hydroxide and water glass.Described liquid starting material is exciting agent.
In the present invention, described alkali metal hydroxide preferably includes one or more in sodium hydroxide, potassium hydroxide and lithium hydroxide; Described water glass is the aqueous solution of silicate, and described water glass preferably includes one or more in lithium silicate, sodium silicate, potash water glass etc.; The modulus of described water glass is preferably 1 ~ 3.5, is more preferably 1.5 ~ 3.4; The solid content (massfraction) of described water glass is preferably 20 ~ 40%, is more preferably 25 ~ 35%; In described water glass, dioxide-containing silica preferably>=26%, and preferably>=8.2%, the density of described water glass is preferably 1.2 ~ 1.5g/cm to sodium oxide content
3, be more preferably 1.3 ~ 1.4g/cm
3.In the present invention, the mass ratio of described alkali metal hydroxide and water glass is preferably 100:(5 ~ 40), be more preferably 100:(10 ~ 30), most preferably be 100:(15 ~ 25).
In the present invention, described liquid starting material preferably also comprises water, and the mass ratio of described alkali metal hydroxide and water is preferably 100:(1 ~ 10), be more preferably 100:(2 ~ 9), most preferably be 100:(3 ~ 8).
Present invention also offers a kind of ceiling board, obtain according to above-mentioned sheet material formula.In the present invention, the porosity of described ceiling board is preferably 20 ~ 50%, is more preferably 30 ~ 40%; The aperture of described ceiling board is preferably 1 ~ 1000 μm, is more preferably 10 ~ 800 μm.Described ceiling board has pore structure, and acoustic energy can drive between material after entering pore interior and mutually rub, and balances out the effect that part acoustic energy reaches sound absorption.Ceiling board aperture provided by the invention is very little, reaches micron order, and acoustical absorbance properties there will be a series of change, and as sound absorption frequency broadens, sound absorption coefficient change is large, makes the sound absorption qualities of described ceiling board better.The size and dimension of the present invention to described ceiling board does not have special restriction.
Present invention also offers a kind of preparation method of ceiling board, comprise the following steps:
A) by liquid starting material and solid material mixing, obtain compound, described liquid starting material comprises: alkali metal hydroxide and water glass, and described solid material comprises: flyash, slag and pore-forming material, and described slag comprises SiO
2, Al
2o
3and CaO;
B) described compound is carried out successively shaping, solidification, dry and sintering, obtain ceiling board.
The present invention is by liquid starting material and solid material mixing, and obtain compound, the present invention preferably first by water-soluble for alkali metal hydroxide glass, adds water, is cooled to room temperature, forms liquid starting material; Then by liquid starting material and solid material mixing, compound is obtained.In the present invention, the kind of the kind of described liquid starting material and component each in solid material, consumption and source and each component in liquid starting material in technique scheme and solid material, consumption and source are consistent, do not repeat them here.
The present invention described compound is carried out successively shaping, solidification, dry and sintering, obtain ceiling board.The present invention preferably adopts method that is dry-pressing formed or casting to make it shaping, the present invention preferably adopts dry-pressing formed method, by described compound in a mold with certain pressure compression moulding, obtains base substrate, then base substrate ethene is cured, dries and sinters, obtain ceiling board.In the present invention, described dry-pressing formed pressure is preferably 5 ~ 7MPa, is more preferably 6MPa; The thickness of described base substrate is preferably 8 ~ 15mm, is more preferably 10 ~ 13mm.The present invention is not particularly limited described shaping mold shape used, selects according to actual needs.In the present invention, according to the method for casting, then in aforesaid liquid raw material, the consumption of water was preferably for 30 ~ 50% (comprising the water in water glass); According to dry-pressing formed method, then in aforesaid liquid raw material, the consumption of water was preferably for 5 ~ 15% (comprising the water in water glass).
After obtaining base substrate, base substrate is carried out maintenance by the present invention at a certain temperature and humidity conditions, makes it solidify, and obtains solidifying base, and in the present invention, the temperature of described solidification is preferably 20 ~ 100 DEG C, is more preferably 30 ~ 90 DEG C, most preferably is 40 ~ 80 DEG C; The humidity of described solidification is preferably 70 ~ 90%, is more preferably 75 ~ 85%, most preferably is 80 ~ 82%; The time of described solidification is preferably 4 ~ 24 hours, is more preferably 5 ~ 20 hours, most preferably is 8 ~ 15 hours.
After obtaining solidification base, described solidification base is dried by the present invention, and obtain the base substrate of drying, in the present invention, the temperature of described oven dry is preferably 105 ~ 120 DEG C, is more preferably 110 ~ 115 DEG C; The time of described oven dry is preferably 30 ~ 60min, is more preferably 35 ~ 55min, most preferably is 40 ~ 50min.Described base substrate is preferably dried to constant weight by the present invention.The present invention is first dried before sintering, the cracking that when can avoid sintering, temperature raises rapidly, liquid water becomes water vapor fast and causes.
After obtaining the base substrate of drying, the base substrate of oven dry sinters by the present invention, obtains ceiling board, and in the present invention, the temperature of described sintering is preferably 400 ~ 1200 DEG C, is more preferably 500 ~ 1000 DEG C, most preferably is 600 ~ 900 DEG C; The time of described sintering is preferably 50 ~ 90min, is more preferably 60 ~ 80min, most preferably is 65 ~ 75min.
After completing sintering, the base substrate after sintering preferably sprays on its surface by the present invention as required, forms various pattern and pattern, dries and namely obtain finished product.
The present invention tests the intensity of the ceiling board that the present invention obtains according to three point method, and result shows, the intensity of ceiling board provided by the invention is 17.7MPa.
The present invention builds experimental installation according to " air purifier standard " (GB/T18801-2008), and the formaldehyde adsorption property carrying out ceiling board with static adsorptive method detects, and result shows, the purifying formaldehyde rate of ceiling board provided by the invention is 30 ~ 67%.
The invention provides a kind of composition being used as sheet material, comprise liquid starting material and solid material, described solid material comprises: flyash, slag and pore-forming material; Described liquid starting material comprises: alkali metal hydroxide and water glass; Described slag comprises SiO
2, Al
2o
3and CaO.In composition provided by the invention, the main component SiO of slag and flyash
2and Al
2o
3react with liquid starting material, can form the material of dimensional network structure, can improve the intensity of sheet material significantly, the CaO in slag and the water glass in liquid starting material react and generate Calucium Silicate powder, can improve the consolidation strength of sheet material further.In addition, the sheet material that formula provided by the invention obtains also has moisture absorption, absorbs the function of formaldehyde and sound-absorbing.Experimental result shows, the bending strength of the ceiling board obtained according to the composition being used as sheet material provided by the invention is 17.7MPa, and purifying formaldehyde rate is 30 ~ 67%.
In addition, ceiling board provided by the invention is pure inorganic materials, and can not burn, high temperature is indeformable; Through high-temperature firing, product performance are stablized; Prepared by employing solid waste, price is lower.
In order to further illustrate the present invention, below in conjunction with embodiment, a kind of sheet material formula provided by the invention, ceiling board and preparation method thereof being described in detail, but can not limiting the scope of the present invention being understood as.
In the examples below, flyash is purchased from Shuozhou, shanxi Province;
Water glass purchased from Foshan, dioxide-containing silica>=26%, sodium oxide content>=8.2%, modulus 3.1 ~ 3.4, density 1.368 ~ 1.394g/cm
3;
Slag: s95 level, purchased from Guangzhou Yuan Guan commerce and trade company limited.
Embodiment 1:
Liquid starting material: weighing sodium hydroxide 10g, sodium silicate 100g, water 20g, add sodium hydroxide in water glass, dissolve, add water and dilute, stir, and treats that temperature drops to room temperature, obtained liquid starting material;
Solid material: take flyash 1000g, slag 100g, coal dust 150g mixes, and is solid material;
Solid material is mixed with liquid starting material, stirs, become half dry powder;
Mixture is joined in mould, extrusion forming, the demoulding, 40 DEG C, maintenance 24 hours under 90% humidity, become solidification base;
Base will be solidified 110 DEG C of oven dry;
Solidification base after drying is sintered 80min at 800 DEG C;
Take out cool to room temperature, obtain ceiling board.
The present invention tests the bending strength of the ceiling board that the present embodiment obtains according to technique scheme, and result is as shown in table 1, and table 1 is the performance data of the ceiling board that the embodiment of the present invention 1 ~ 3 obtains.
The present invention tests the purifying formaldehyde rate of the ceiling board that the present embodiment obtains according to technique scheme, and result is as shown in table 1, and table 1 is the performance data of the ceiling board that the embodiment of the present invention 1 ~ 3 obtains.
The present invention tests porosity and the aperture of the ceiling board that the present embodiment obtains according to technique scheme, and result is as shown in table 1, and table 1 is the performance data of the ceiling board that the embodiment of the present invention 1 ~ 3 obtains.
Embodiment 2:
Liquid starting material: weighing sodium hydroxide 20g, sodium silicate 100g, water 20g, add sodium hydroxide in water glass, dissolve, add water and dilute, stir, and treats that temperature drops to room temperature, obtained liquid starting material;
Solid material: take flyash 1000g, slag 150g, Mierocrystalline cellulose 150g mix as solid material;
Solid material is mixed with liquid starting material, stirs, become half dry powder;
Mixture is joined in mould, extrusion forming, the demoulding, 60 DEG C, maintenance 24 hours under 90% humidity, become solidification base;
Base will be solidified 110 DEG C of oven dry;
Solidification base after drying is sintered 60min at 900 DEG C;
Take out cool to room temperature, obtain ceiling board.
The present invention tests the bending strength of the ceiling board that the present embodiment obtains according to technique scheme, and result is as shown in table 1, and table 1 is the performance data of the ceiling board that the embodiment of the present invention 1 ~ 3 obtains.
The present invention tests the purifying formaldehyde rate of the ceiling board that the present embodiment obtains according to technique scheme, and result is as shown in table 1, and table 1 is the performance data of the ceiling board that the embodiment of the present invention 1 ~ 3 obtains.
The present invention tests porosity and the aperture of the ceiling board that the present embodiment obtains according to technique scheme, and result is as shown in table 1, and table 1 is the performance data of the ceiling board that the embodiment of the present invention 1 ~ 3 obtains.
Embodiment 3:
Liquid starting material: weighing sodium hydroxide 25g, sodium silicate 100g, water 2g, add sodium hydroxide in water glass, dissolve, add water and dilute, stir, and treats that temperature drops to room temperature, obtained liquid starting material;
Solid material: take flyash 1000g, slag 200g, bagasse 150g mix as solid material;
Solid material is mixed with liquid starting material, stirs, become half dry powder;
Mixture is joined in mould, extrusion forming, the demoulding, 80 DEG C, maintenance 24 hours under 90% humidity, become solidification base;
Base will be solidified 110 DEG C of oven dry;
Solidification base after drying is sintered 60min at 1000 DEG C;
Take out cool to room temperature, obtain ceiling board.
The present invention tests the bending strength of the ceiling board that the present embodiment obtains according to technique scheme, and result is as shown in table 1, and table 1 is the performance data of the ceiling board that the embodiment of the present invention 1 ~ 3 obtains.
The present invention tests the purifying formaldehyde rate of the ceiling board that the present embodiment obtains according to technique scheme, and result is as shown in table 1, and table 1 is the performance data of the ceiling board that the embodiment of the present invention 1 ~ 3 obtains.
The present invention tests porosity and the aperture of the ceiling board that the present embodiment obtains according to technique scheme, and result is as shown in table 1, and table 1 is the performance data of the ceiling board that the embodiment of the present invention 1 ~ 3 obtains.
The performance data of the ceiling board that table 1 embodiment of the present invention 1 ~ 3 obtains
| Embodiment | Bending strength (MPa) | Purifying formaldehyde rate (%) | Porosity (%) | Pore-creating aperture (um) |
| 1 | 17.7 | 30.5 | 28.1 | 50-200 |
| 2 | 16.5 | 53.3 | 35.0 | 10-1000 |
| 3 | 15.6 | 67.7 | 41.2 | 1-1000 |
As shown in Table 1, the ceiling board that the embodiment of the present invention 1 ~ 3 provides has higher bending strength and purifying formaldehyde rate.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. be used as a composition for sheet material, comprise liquid starting material and solid material;
Described solid material comprises flyash, slag and pore-forming material;
Described liquid starting material comprises alkali metal hydroxide and water glass;
Described slag comprises SiO
2, Al
2o
3and CaO.
2. composition according to claim 1, is characterized in that, the mass ratio of described solid material and liquid starting material is 100:(1 ~ 20);
The mass ratio of described alkali metal hydroxide and water glass is (5 ~ 40): 100.
3. composition according to claim 1, is characterized in that, the particle diameter of described flyash is 1 ~ 150 μm;
The density of described flyash is 1.8 ~ 2.5g/cm
3.
4. composition according to claim 1, is characterized in that, in massfraction, described slag comprises the SiO of 20 ~ 30%
2, 10 ~ 20% Al
2o
3with 20 ~ 40% CaO;
The mass ratio of described flyash and slag is 100:(1 ~ 20).
5. composition according to claim 1, is characterized in that, described pore-forming material comprises one or more in coal dust, carboxymethyl cellulose and bagasse;
The mass ratio of described flyash and pore-forming material is 100:(1 ~ 5).
6. a ceiling board, is obtained by the composition described in Claims 1 to 5 any one.
7. a preparation method for ceiling board, comprises the following steps:
A) by liquid starting material and solid material mixing, obtain compound, described liquid starting material comprises: alkali metal hydroxide and water glass, and described solid material comprises: flyash, slag and pore-forming material, and described slag comprises SiO
2, Al
2o
3and CaO;
B) described compound is carried out successively shaping, solidification, dry and sintering, obtain ceiling board.
8. preparation method according to claim 7, is characterized in that, described step B) in solidification temperature be 20 ~ 100 DEG C;
The humidity of described solidification is 70 ~ 90%;
The time of described solidification is 4 ~ 24 hours.
9. preparation method according to claim 7, is characterized in that, the temperature of described oven dry is 105 ~ 120 DEG C.
10. preparation method according to claim 7, is characterized in that, the temperature of described sintering is 400 ~ 1200 DEG C;
The time of described sintering is 50 ~ 90min.
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| CN201510497979.2A CN105060921B (en) | 2015-08-13 | 2015-08-13 | A kind of composition as sheet material, ceiling board and preparation method thereof |
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| CN105060921B CN105060921B (en) | 2017-12-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117326829A (en) * | 2023-09-21 | 2024-01-02 | 河海大学 | Preparation method of inorganic polymer heat insulation plate with unidirectionally arranged micropores |
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| JP2003246687A (en) * | 2002-02-22 | 2003-09-02 | Ngk Insulators Ltd | Method of manufacturing water absorptive ceramics |
| CN101224972A (en) * | 2008-01-18 | 2008-07-23 | 江西理工大学 | Lightweight ceramicite and preparation method thereof |
| CN102826789A (en) * | 2011-06-13 | 2012-12-19 | 上海华明高技术（集团）有限公司 | Fly-ash fiber heat-insulation acoustic board and preparation method thereof |
| CN103664122A (en) * | 2012-09-20 | 2014-03-26 | 北京建工新型建材有限责任公司 | Novel light-weight porous heat-insulating material and preparation method thereof |
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2015
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|---|---|---|---|---|
| JP2003246687A (en) * | 2002-02-22 | 2003-09-02 | Ngk Insulators Ltd | Method of manufacturing water absorptive ceramics |
| CN101224972A (en) * | 2008-01-18 | 2008-07-23 | 江西理工大学 | Lightweight ceramicite and preparation method thereof |
| CN102826789A (en) * | 2011-06-13 | 2012-12-19 | 上海华明高技术（集团）有限公司 | Fly-ash fiber heat-insulation acoustic board and preparation method thereof |
| CN103664122A (en) * | 2012-09-20 | 2014-03-26 | 北京建工新型建材有限责任公司 | Novel light-weight porous heat-insulating material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117326829A (en) * | 2023-09-21 | 2024-01-02 | 河海大学 | Preparation method of inorganic polymer heat insulation plate with unidirectionally arranged micropores |
| CN117326829B (en) * | 2023-09-21 | 2024-05-14 | 河海大学 | Preparation method of inorganic polymer heat insulation plate with unidirectionally arranged micropores |
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Effective date of registration: 20240105 Address after: 407, 4th floor, building a, Zhongke innovation Plaza, No.10, Keji 2nd Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province, 523000 Patentee after: GUANGDONG HUIZHONG NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee after: Guangdong Qingda Innovation Research Institute Co.,Ltd. Address before: 407, 4th floor, building a, Zhongke innovation Plaza, No.10, Keji 2nd Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province, 523000 Patentee before: GUANGDONG HUIZHONG NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee before: TSINGHUA INNOVATION CENTER IN DONGGUAN |