CN105084931A - Modified fluorgypsum powder for wall material - Google Patents
Modified fluorgypsum powder for wall material Download PDFInfo
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- CN105084931A CN105084931A CN201510496299.9A CN201510496299A CN105084931A CN 105084931 A CN105084931 A CN 105084931A CN 201510496299 A CN201510496299 A CN 201510496299A CN 105084931 A CN105084931 A CN 105084931A
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- 239000000843 powder Substances 0.000 title claims abstract description 87
- 239000000463 material Substances 0.000 title claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 61
- 239000010883 coal ash Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 238000005187 foaming Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000010440 gypsum Substances 0.000 claims description 45
- 229910052602 gypsum Inorganic materials 0.000 claims description 45
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 42
- 239000011737 fluorine Substances 0.000 claims description 42
- 229910052731 fluorine Inorganic materials 0.000 claims description 42
- 230000004048 modification Effects 0.000 claims description 36
- 238000012986 modification Methods 0.000 claims description 36
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 18
- 239000003365 glass fiber Substances 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 15
- 238000010792 warming Methods 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 11
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 10
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 10
- 230000003750 conditioning effect Effects 0.000 claims description 9
- 239000001828 Gelatine Substances 0.000 claims description 8
- -1 andaluzite Substances 0.000 claims description 8
- 229920000159 gelatin Polymers 0.000 claims description 8
- 235000019322 gelatine Nutrition 0.000 claims description 8
- 239000002023 wood Substances 0.000 claims description 7
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 239000004113 Sepiolite Substances 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- 235000019355 sepiolite Nutrition 0.000 claims description 6
- 229910052624 sepiolite Inorganic materials 0.000 claims description 6
- 239000010455 vermiculite Substances 0.000 claims description 6
- 229910052902 vermiculite Inorganic materials 0.000 claims description 6
- 235000019354 vermiculite Nutrition 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- 229920002522 Wood fibre Polymers 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- 238000004945 emulsification Methods 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- 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 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 claims description 5
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 5
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 5
- 239000008117 stearic acid Substances 0.000 claims description 5
- 239000002025 wood fiber Substances 0.000 claims description 5
- 229940089401 xylon Drugs 0.000 claims description 5
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 4
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 4
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 4
- 235000011151 potassium sulphates Nutrition 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 3
- 229960001763 zinc sulfate Drugs 0.000 claims description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 2
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 2
- 239000003607 modifier Substances 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 abstract 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 abstract 1
- 239000004575 stone Substances 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 5
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 239000011507 gypsum plaster Substances 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The invention discloses modified fluorgypsum powder for a wall material. The modified fluorgypsum powder comprises, by weight, 100 parts of fluorgypsum, 30-50 parts of coal ash powder, 2-5 parts of aluminosilicate, 3-8 parts of sulfate, 3-6 parts light material, 2-5 parts of complex fiber, 2-5 parts of water-proof agent and 1-2 parts of foaming modifier. The coal ash powder is prepared through the steps that coal ash is added in a mixed acid solution, temperature raising and stirring are carried out, cooling, standing, filtering, drying and grinding are carried out, and then the mixture is evenly mixed with sea-foam stone powder and hydroxymethyl cellulose. The modified fluorgypsum powder is prepared through the steps that the fluorgypsum is ground, water is added for stirring, the aluminosilicate is added after the temperature is raised, the sulfate is added to carry out roasting, and then the coal ash powder, the light material, the complex fiber, the water-proofing agent and the foaming modifier are sequentially added and mixed to obtain the modified fluorgypsum powder. The modified fluorgypsum powder meets the requirements for the water absorption, strength and the like of the wall materials, and is good in density, low in heat conduction coefficient, good in product comprehensive performance and simple in preparing technology.
Description
Technical field
The present invention relates to fluorgypsum technical field, particularly relate to a kind of modification fluorine gypsum powder for wall covering.
Background technology
Fluorgypsum is the byproduct in hydrofluoric acid (HF) preparation process, and national anhydrous HF output is about 6.5 ten thousand t every year, and manufactures HF per ton and produce fluorgypsum and be about 3.5t, amounts to fluorgypsum generation about 230,000 t/.Fluorgypsum main component is anhydrous calciumsulphate (CaSO
4), because of its be insoluble in water, aquation is slow, coagulability is poor, and not there is early strength generally cannot be used effectively.At present, part fluorgypsum is used as the admixture of cement, and most of fluorgypsum is just stored up as a kind of solid waste after neutralizing treatment a little, directly stores up not only landed property, goes back contaminated soil and groundwater environment.
But fluorgypsum also has the advantage of himself: produce the raw material acid of fluorgypsum and fluorite purity very high, and reaction is in anhydrous state, to produce fluorgypsum be dehydrated gyp-, CaSO
4content, up to more than 95%, is a kind of rare grade resource in gypsum resource.Discharge from hydrogen fluoride reaction stove without long-term stacking, the fresh fluorgypsum not adding water treatment has again following advantage for the production of plaster of Paris: purity is high, impurity is few, need not calcination processing, need not be broken, grinding workload is few.The exploitation of modern fluorgypsum are mainly used as mineralizer and the cement setting retarder of calcination of cement clinker, prepare brushing gypsum, produce building plasterboard and coating material etc.But because fluorgypsum is a kind of dehydrated gyp-, hydration reaction is very slow, and the dissolution rate in water is slow, if be directly used in building materials, such as wall covering, the series of problems such as the linking cracking stitched when usually occurring the insufficient strength of walling, chance water softening and install.
Therefore, by carrying out modification to gypsum, overcoming its inherent defect, making it for modern wall covering, be realize one of approach that industry byproduct fluorgypsum resource utilization effectively utilizes, and tool of preserving the ecological environment is of great significance.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of modification fluorine gypsum powder for wall covering, described modification fluorine gypsum powder, not only meet the requirements such as the water-intake rate of wall covering, intensity, and density is good, thermal conductivity is low, product high comprehensive performance, and preparation technology is simple.
A kind of modification fluorine gypsum powder for wall covering that the present invention proposes, its raw material comprises by weight: fluorgypsum 100 parts, coal ash powder 30-50 part, silico-aluminate 2-5 part, vitriol 3-8 part, light material 3-6 part, conjugated fibre 2-5 part, water-resisting agent 2-5 part, foaming control agent 1-2 part;
Wherein, prepare described coal ash powder to comprise: 100 parts of flyash are added in the mixed acid solution of 200-240 part 3-5mol/L, 6-8h is stirred after being warming up to 100-120 DEG C, cooling, after leaving standstill 8-10h, filter, dry, pulverize, obtain described coal ash powder with 16-20 part sepiolite powder, 1-10 part Walocel MT 20.000PV after mixing, wherein said mixed acid solution is HCl and H of 1:3-5 by mol ratio
2sO
4formulated;
The described modification fluorine gypsum powder for wall covering of preparation comprises: fluorine gypsum powder is broken to particle diameter≤2mm, add with fluorgypsum be benchmark 15-25wt% water after stir, add silico-aluminate after being warming up to 30-40 DEG C and stir 1-2h, cooling leaves standstill 15-20h, add vitriol mixing, roasting 1-3h at 80-180 DEG C, be cooled to room temperature, add water and regulate humidity to be 5-10wt%, add coal ash powder, light material, conjugated fibre, water-resisting agent, foaming control agent mixing successively, after being finely ground to particle diameter≤0.147mm, obtain described modification fluorine gypsum powder.
Preferably, the raw material of the described modification fluorine gypsum powder for wall covering comprises by weight: fluorgypsum 100 parts, coal ash powder 35-45 part, silico-aluminate 3-4 part, vitriol 5-6 part, light material 4-5 part, conjugated fibre 3-4 part, water-resisting agent 3-4 part, foaming control agent 1-2 part.Preferably, described coal ash powder is 800-900 order.
Preferably, described silico-aluminate is one or more in kaolin, andaluzite, coal gangue, and described vitriol is one or more in Tai-Ace S 150, potassium aluminium sulfate, potassium sulfate, zinc sulfate, barium sulfate.
Preferably, described light material is pearlstone, expanded vermiculite, the polystyrene plastic granulometric composition of 1:5-7:3-5 by weight proportion.
Preferably, described conjugated fibre be by by the glass fibre of quality proportioning 1:1-3 and innovation wood fibrous; Preferably, described glass fibre is high alkali glass fibre, and sodium oxide content is 13-16%; Described innovation wood fiber is by xylon being placed in 150-170 DEG C, the water vapor pressure force container of 1-2.5MPa, preparing after 3-4 internal pressure second drops to normal pressure.
Preferably, described water-resisting agent is organic waterproof agent, and preferably, organic waterproof agent is by the homogeneous latex emulsion of stearic acid, paraffin, polyethylene emulsification.
Preferably, described whipping agent conditioning agent is formulated by the NaOH of weight proportion 1:0.3-0.5:6-8, gelatine and rosin.
Preferably, prepare described foaming control agent and comprise, be mixed with the solution that relative density is 1.1-1.2, add soluble in water for NaOH rosin, be stirred to rosin and all dissolve, then add gelatine after boiling, after cooling, room temperature is deposited and is obtained described whipping agent conditioning agent.
Using fluorgypsum as base material in the present invention, by adding coal ash powder and its proportioning of conservative control, the existence of coal ash powder makes fluorgypsum inside generate rigid mineral, and be filled in hydration fluorgypsum gaps between crystals, the solubleness of hydrated product is significantly reduced, improve the product strength of fluorgypsum, and there is certain water tolerance; By adding a certain amount of silico-aluminate and vitriol as exciting agent, improving and improving the hydration activity of fluorgypsum and the extremely slow characteristic of condensation, strengthening the activation performance of fluorgypsum, improve and other raw material bonding strength; Adding of light material has good strengthening action to fluorgypsum material when high temperature, and can significantly improve shock strength, wear resisting property when greatly improving high temperature; Conjugated fibre is as strongthener, it adds the density that can reduce material, reduces its abrasion loss, also can reduce the frictional coefficient of material simultaneously, wherein, glass fibre and the fibrous conjugated fibre of innovation wood can significantly improve the stability of fluorine gypsum powder when high temperature; Adding of whipping agent conditioning agent, effectively can reduce apparent unit weight and the thermal conductivity of fluorgypsum material.
Modification fluorine gypsum powder for wall covering of the present invention, by under suitable additional properties-correcting agent effect, change the chemical kinetics character of its hydration reaction process, improve its dissolution rate and hydration rate, promote that fluorgypsum whisker is respectively to homoepitaxial, form each reticulated structure to whisker prosperity, shorten time of coagulation, improve crystal early strength, simultaneously in preparation process, by fine grinding modification fluorine gypsum powder to specified particle size, reduce the particle fineness of raw material, increase the surface-area of particle, thus improve their activity, to the effect of having greatly improved of fluorgypsum activity, it changes qualified wall covering into the most at last.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of modification fluorine gypsum powder for wall covering that the present invention proposes, its raw material comprises by weight: fluorgypsum 100 parts, coal ash powder 30 parts, kaolin 5 parts, 3 parts, Tai-Ace S 150, light material 6 parts, conjugated fibre 2 parts, water-resisting agent 5 parts, foaming control agent 1 part;
Wherein, prepare described coal ash powder to comprise: 100 parts of flyash are added in 200 parts of 5mol/L mixed acid solutions, 8h is stirred after being warming up to 100 DEG C, cooling, after leaving standstill 8h, filter, dry, pulverize, obtain described coal ash powder with 20 parts of sepiolite powders, 1 part of Walocel MT 20.000PV after mixing, wherein said mixed acid solution is HCl and H of 1:5 by mol ratio
2sO
4formulated;
The described modification fluorine gypsum powder for wall covering of preparation comprises: fluorine gypsum powder is broken to particle diameter≤2mm, add with fluorgypsum be benchmark 15wt% water after stir, add kaolin after being warming up to 40 DEG C and stir 1h, cooling leaves standstill 20h, add Tai-Ace S 150 mixing, roasting 3h at 80 DEG C, be cooled to room temperature, add water and regulate humidity to be 5wt%, add coal ash powder, light material, conjugated fibre, water-resisting agent, foaming control agent mixing successively, after being finely ground to particle diameter≤0.147mm, obtain described modification fluorine gypsum powder;
Described light material is pearlstone, expanded vermiculite, the polystyrene plastic granulometric composition of 1:5:5 by weight proportion; Described conjugated fibre is that wherein said glass fibre is high alkali glass fibre by the glass fibre of weight proportion 1:1 and the fibrous mixture of innovation wood, and sodium oxide content is 13%; Described innovation wood fiber is by xylon being placed in 170 DEG C, the water vapor pressure force container of 1MPa, preparing after 3-4 internal pressure second drops to normal pressure; Described water-resisting agent is by the homogeneous latex emulsion of stearic acid, paraffin, polyethylene emulsification; Described whipping agent conditioning agent is that the NaOH of 1:0.3:8, gelatine and rosin are formulated by weight proportion.
Embodiment 2
A kind of modification fluorine gypsum powder for wall covering that the present invention proposes, its raw material comprises by weight: fluorgypsum 100 parts, coal ash powder 50 parts, andaluzite 2 parts, potassium aluminium sulfate 8 parts, light material 3 parts, conjugated fibre 5 parts, water-resisting agent 2 parts, foaming control agent 2 parts;
Wherein, prepare described coal ash powder to comprise: 100 parts of flyash are added in 240 parts of 3mol/L mixed acid solutions, 6h is stirred after being warming up to 120 DEG C, cooling, after leaving standstill 10h, filter, dry, pulverize, obtain described coal ash powder with 16 parts of sepiolite powders, 10 parts of Walocel MT 20.000PVs after mixing, wherein said mixed acid solution is HCl and H of 1:3 by mol ratio
2sO
4formulated;
The described modification fluorine gypsum powder for wall covering of preparation comprises: fluorine gypsum powder is broken to particle diameter≤2mm, add with fluorgypsum be benchmark 25wt% water after stir, add andaluzite after being warming up to 30 DEG C and stir 2h, cooling leaves standstill 15h, add potassium aluminium sulfate mixing, roasting 1h at 180 DEG C, be cooled to room temperature, add water and regulate humidity to be 10wt%, add coal ash powder, light material, conjugated fibre, water-resisting agent, foaming control agent mixing successively, after being finely ground to particle diameter≤0.147mm, obtain described modification fluorine gypsum powder;
Described light material is pearlstone, expanded vermiculite, the polystyrene plastic granulometric composition of 1:7:3 by weight proportion; Described conjugated fibre is that wherein said glass fibre is high alkali glass fibre by the glass fibre of weight proportion 1:3 and the fibrous mixture of innovation wood, and sodium oxide content is 16%; Described innovation wood fiber is by xylon being placed in 150 DEG C, the water vapor pressure force container of 2.5MPa, preparing after 3-4 internal pressure second drops to normal pressure; Described water-resisting agent is by the homogeneous latex emulsion of stearic acid, paraffin, polyethylene emulsification; Described whipping agent conditioning agent is that the NaOH of 1:0.5:6, gelatine and rosin are formulated by weight proportion.
Embodiment 3
A kind of modification fluorine gypsum powder for wall covering that the present invention proposes, its raw material comprises by weight: fluorgypsum 100 parts, coal ash powder 35 parts, coal gangue 4 parts, potassium sulfate 5 parts, light material 5 parts, conjugated fibre 3 parts, water-resisting agent 4 parts, foaming control agent 1.5 parts;
Wherein, prepare described coal ash powder to comprise: 100 parts of flyash are added in 220 parts of 4mol/L mixed acid solutions, 7h is stirred after being warming up to 110 DEG C, cooling, after leaving standstill 9h, filter, dry, pulverize, obtain described coal ash powder with 18 parts of sepiolite powders, 6 parts of Walocel MT 20.000PVs after mixing, wherein said mixed acid solution is HCl and H of 1:4 by mol ratio
2sO
4formulated;
The described modification fluorine gypsum powder for wall covering of preparation comprises: fluorine gypsum powder is broken to particle diameter≤2mm, add with fluorgypsum be benchmark 20wt% water after stir, add iron ore after being warming up to 35 DEG C and stir 1.5h, cooling leaves standstill 18h, add potassium sulfate mixing, roasting 2h at 130 DEG C, be cooled to room temperature, add water and regulate humidity to be 7wt%, add coal ash powder, light material, conjugated fibre, water-resisting agent, foaming control agent mixing successively, after being finely ground to particle diameter≤0.147mm, obtain described modification fluorine gypsum powder;
Described light material is pearlstone, expanded vermiculite, the polystyrene plastic granulometric composition of 1:6:4 by weight proportion; Described conjugated fibre is by the glass fibre of weight proportion 1:2 and the fibrous mixture of innovation wood; Wherein said glass fibre is high alkali glass fibre, and sodium oxide content is 14%; Described innovation wood fiber is by xylon being placed in 160 DEG C, the water vapor pressure force container of 1.5MPa, preparing after 3-4 internal pressure second drops to normal pressure; Described water-resisting agent is by the homogeneous latex emulsion of stearic acid, paraffin, polyethylene emulsification; Described whipping agent conditioning agent is that the NaOH of 1:0.4:7, gelatine and rosin are formulated by weight proportion.
Embodiment 4
A kind of modification fluorine gypsum powder for wall covering that the present invention proposes, its raw material comprises by weight: fluorgypsum 100 parts, coal ash powder 40 parts, silico-aluminate 3 parts, 6 parts, vitriol, light material 4 parts, conjugated fibre 4 parts, water-resisting agent 3 parts, foaming control agent 1.5 parts;
Wherein, prepare described coal ash powder to comprise: 100 parts of flyash are added in 220 parts of 4mol/L mixed acid solutions, 7h is stirred after being warming up to 110 DEG C, cooling, after leaving standstill 9h, filter, dry, pulverize, obtain described coal ash powder with 18 parts of sepiolite powders, 5 parts of Walocel MT 20.000PVs after mixing, wherein said mixed acid solution is HCl and H of 1:4 by mol ratio
2sO
4formulated;
The described modification fluorine gypsum powder for wall covering of preparation comprises: fluorine gypsum powder is broken to particle diameter≤2mm, add with fluorgypsum be benchmark 19wt% water after stir, add silico-aluminate after being warming up to 35 DEG C and stir 1.5h, cooling leaves standstill 17h, add vitriol mixing, roasting 2h at 130 DEG C, be cooled to room temperature, add water and regulate humidity to be 8wt%, add coal ash powder, light material, conjugated fibre, water-resisting agent, foaming control agent mixing successively, after being finely ground to particle diameter≤0.147mm, obtain described modification fluorine gypsum powder;
Described silico-aluminate is made up of kaolin, andaluzite, coal gangue, and described vitriol is made up of potassium aluminium sulfate, zinc sulfate, barium sulfate; Described light material is pearlstone, expanded vermiculite, the polystyrene plastic granulometric composition of 1:6:4 by weight proportion; Described conjugated fibre is by glass fibre and the fibrous mixture of innovation wood; Described whipping agent conditioning agent is that the NaOH of 1:0.4:7, gelatine and rosin are formulated by weight proportion.
Carry out performance test to embodiment 1-4, in embodiment 1-4, gained is as follows for the mean parameter of each performance of the modification fluorine gypsum powder of wall covering: presetting period 3min, final setting time 6.5min; The folding strength 1.90MPa measured after 24h, ultimate compression strength 7.25MPa; Unit weight is 671kg/m
3, thermal conductivity is 0.17W/mK, water ratio < 3%, meets " plaster of Paris (GB/T9776-2008) " building gypsum plaster requirement.
The present invention proposes a kind of modification fluorine gypsum powder for wall covering, described modification fluorine gypsum powder, not only meet the requirements such as the water-intake rate of wall covering, intensity, and density is good, thermal conductivity is low, product high comprehensive performance, and preparation technology is simple.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. the modification fluorine gypsum powder for wall covering, it is characterized in that, its raw material comprises by weight: fluorgypsum 100 parts, coal ash powder 30-50 part, silico-aluminate 2-5 part, vitriol 3-8 part, light material 3-6 part, conjugated fibre 2-5 part, water-resisting agent 2-5 part, foaming control agent 1-2 part;
Wherein, prepare described coal ash powder to comprise: 100 parts of flyash are added in 200-240 part 3-5mol/L mixed acid solution, 6-8h is stirred after being warming up to 100-120 DEG C, cooling, after leaving standstill 8-10h, filter, dry, pulverize, obtain described coal ash powder with 16-20 part sepiolite powder, 1-10 part Walocel MT 20.000PV after mixing, wherein said mixed acid solution is HCl and H of 1:3-5 by mol ratio
2sO
4formulated;
The described modification fluorine gypsum powder for wall covering of preparation comprises: fluorine gypsum powder is broken to particle diameter≤2mm, add with fluorgypsum be benchmark 15-25wt% water after stir, add silico-aluminate after being warming up to 30-40 DEG C and stir 1-2h, cooling leaves standstill 15-20h, add vitriol mixing, roasting 1-3h at 80-180 DEG C, be cooled to room temperature, add water and regulate humidity to be 5-10wt%, add coal ash powder, light material, conjugated fibre, water-resisting agent, foaming control agent mixing successively, after being finely ground to particle diameter≤0.147mm, obtain described modification fluorine gypsum powder.
2. the modification fluorine gypsum powder for wall covering according to claim 1, it is characterized in that, its raw material comprises by weight: fluorgypsum 100 parts, coal ash powder 35-45 part, silico-aluminate 3-4 part, vitriol 5-6 part, light material 4-5 part, conjugated fibre 3-4 part, water-resisting agent 3-4 part, foaming control agent 1-2 part.
3. the modification fluorine gypsum powder for wall covering according to claim 1 and 2, it is characterized in that, described silico-aluminate is one or more in kaolin, andaluzite, coal gangue, and described vitriol is one or more in Tai-Ace S 150, potassium aluminium sulfate, potassium sulfate, zinc sulfate, barium sulfate.
4. the modification fluorine gypsum powder for wall covering according to any one of claim 1-3, is characterized in that, described light material is pearlstone, expanded vermiculite, the polystyrene plastic granulometric composition of 1:5-7:3-5 by weight proportion.
5. the modification fluorine gypsum powder for wall covering according to any one of claim 1-4, is characterized in that, described conjugated fibre be by the glass fibre of weight proportion 1:1-3 and innovation wood fibrous; Preferably, described glass fibre is high alkali glass fibre, and sodium oxide content is 13-16%; Described innovation wood fiber is by xylon being placed in 150-170 DEG C, the water vapor pressure force container of 1-2.5MPa, preparing after 3-4 internal pressure second drops to normal pressure.
6. the modification fluorine gypsum powder for wall covering according to any one of claim 1-5, is characterized in that, described water-resisting agent is organic waterproof agent, and preferably, organic waterproof agent is by the homogeneous latex emulsion of stearic acid, paraffin, polyethylene emulsification.
7. the modification fluorine gypsum powder for wall covering according to any one of claim 1-6, is characterized in that, described whipping agent conditioning agent is formulated by the NaOH of weight proportion 1:0.3-0.5:6-8, gelatine and rosin.
8. the modification fluorine gypsum powder for wall covering according to claim 7, it is characterized in that, prepare described foaming control agent to comprise, the solution that relative density is 1.1-1.2 is mixed with by soluble in water for NaOH, rosin is added after boiling, be stirred to rosin all to dissolve, then add gelatine, after cooling, room temperature is deposited and is obtained described whipping agent conditioning agent.
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| CN108129045A (en) * | 2017-12-27 | 2018-06-08 | 应城市嘉鸿技术服务科技有限公司 | A kind of preparation method of land plaster |
| CN108623277A (en) * | 2018-05-25 | 2018-10-09 | 合肥奇呗数字科技有限公司 | One kind can cracking resistance thermal-insulating type mortar and preparation method thereof |
| CN109665797A (en) * | 2019-01-25 | 2019-04-23 | 郑晓珊 | A kind of energy conservation and environmental protection wall covering and its Preparation equipment |
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| CN108623277A (en) * | 2018-05-25 | 2018-10-09 | 合肥奇呗数字科技有限公司 | One kind can cracking resistance thermal-insulating type mortar and preparation method thereof |
| CN109665797A (en) * | 2019-01-25 | 2019-04-23 | 郑晓珊 | A kind of energy conservation and environmental protection wall covering and its Preparation equipment |
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Denomination of invention: A modified fluorogypsum powder for wall materials Effective date of registration: 20231204 Granted publication date: 20171128 Pledgee: Ningguo SME financing Company limited by guarantee Pledgor: Jinyang hi tech material Limited by Share Ltd. Registration number: Y2023980069192 |