CN103896622A - Preparation method of thermal insulation foam ceramic material - Google Patents
Preparation method of thermal insulation foam ceramic material Download PDFInfo
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- CN103896622A CN103896622A CN201410094470.9A CN201410094470A CN103896622A CN 103896622 A CN103896622 A CN 103896622A CN 201410094470 A CN201410094470 A CN 201410094470A CN 103896622 A CN103896622 A CN 103896622A
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- heat preservation
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- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 229910010293 ceramic material Inorganic materials 0.000 title abstract description 6
- 239000002937 thermal insulation foam Substances 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- 238000005338 heat storage Methods 0.000 claims abstract description 32
- 239000006260 foam Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000919 ceramic Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 19
- 239000012774 insulation material Substances 0.000 claims abstract description 14
- 229960000892 attapulgite Drugs 0.000 claims abstract description 13
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 13
- 238000000498 ball milling Methods 0.000 claims abstract description 12
- 239000006185 dispersion Substances 0.000 claims abstract description 10
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 5
- 238000001132 ultrasonic dispersion Methods 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 27
- 238000004321 preservation Methods 0.000 claims description 26
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- -1 polyethylene Polymers 0.000 claims description 12
- 229920000573 polyethylene Polymers 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 11
- 235000013312 flour Nutrition 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 238000010792 warming Methods 0.000 claims description 11
- 238000005469 granulation Methods 0.000 claims description 10
- 230000003179 granulation Effects 0.000 claims description 10
- 238000003801 milling Methods 0.000 claims description 9
- 239000011812 mixed powder Substances 0.000 claims description 9
- 235000013339 cereals Nutrition 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 8
- 229920003169 water-soluble polymer Polymers 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000009775 high-speed stirring Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000003929 acidic solution Substances 0.000 claims description 4
- 150000008064 anhydrides Chemical class 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003828 vacuum filtration Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000004088 foaming agent Substances 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- 230000005496 eutectics Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Abstract
The invention relates to a preparation method of a thermal insulation foam ceramic material. The preparation method comprises the following steps: (1) dissolving active attapulgite and a silane coupling agent in a agent, and carrying out water bath heating and ultrasonic dispersion, thus obtaining viscous liquid; (2) adding the obtained viscous liquid to a heat storage thermal insulation material, stirring and dispersing at a high speed, thus obtaining a heat-storage thermal insulation material dispersion liquid; (3) drying the obtained dispersion liquid, carrying out ball milling and pelleting, thus obtaining mixed particles; (4) adding the prepared mixed particles, a foamed ceramic blank and a foaming agent to a ball mill, carrying out ball milling, and then carrying out high-temperature sintering, thus obtaining the foam ceramic thermal insulation material. The preparation method has the advantages that by adding the heat storage thermal insulation material to ceramic batching, a material substrate and the foaming agent are in mutually eutectic melting and subjected to chemical reaction, dense closed pores exist in the material, and the porous light thermal insulation material structure is obtained in the end.
Description
Technical field
The preparation method who the present invention relates to a kind of insulating foam stupalith, belongs to field of heat insulating materials.
Background technology
Building exterior wall heat preserving is the important content of building energy conservation, can account for 30%～40% of building energy conservation, at present, the main product of China's external-wall heat-insulation material is the organic insulation material such as polystyrene foam plate and polystyrene extruded sheet, the advantage of these organic insulation materials is that heat-insulating property excellence, price are low, but also having critical defect, is exactly that they all belong to combustible matl, has the danger of initiation fire.
Phase change material has that storage density is large, heat vessel volume is little, thermo-efficiency advantages of higher, has broad application prospects in fields such as sun power utilization, industrial exhaust heat, waste heat recovery, building energy conservations.Current phase change heat storage material research is mainly divided into: organic phase-change heat-storing material and inorganic-phase variable heat-storing material, organic phase-change heat-storing material performance is more stable, almost without crossing cold-peace problem of phase separation, but its latent heat of phase change is low, density is little, thereby its unit volume heat storage capacity is less.Inorganic-phase variable heat-storing material has higher unit volume heat storage capacity and good thermal conductivity, has fairly obvious advantage.
Patent ZL201210034759.2 discloses a kind of external wall thermal insulation light foamed ceramic and preparation method thereof, it first fluxes material after wet grinding makes slip by the industrial solid castoff of 60～90 parts of mass fractions and 10～40 parts, be prepared from again the features such as the light floamed ceramic material that have that product cost is low, thermal conductivity is good, can be used for building exterior wall heat preserving through foam process.
Summary of the invention
The object of this invention is to provide a kind of preparation method of building exterior wall heat preserving foam ceramic material, prepared foam ceramic material can reach the requirement of A level combustionproperty, meets the various performance requriementss of people to architecture exterior wall insulating materials simultaneously.
The technical scheme that realizes the object of the invention is: a kind of preparation method of insulating foam stupalith, and preparation process is:
A preparation method for insulating foam stupalith, preparation process is as follows:
1) by soluble in water to active attapulgite soil and silane coupling agent, heating in water bath, ultrasonic dispersion, obtains viscous liquid;
2) in the prepared viscous liquid of step 1), add heat-storage heat preservation material, high-speed stirring is disperseed, and obtains heat-storage heat preservation material dispersion liquid;
3) by step 2) dispersion liquid of gained is dry, ball milling and granulation, obtains composite grain;
4) composite grain step 3) being made, foamed ceramic blank and whipping agent add ball milling in ball mill, then carry out high temperature sintering, make foam ceramic thermal insulation material..
Preferably, in step 1), the mass ratio of described active attapulgite soil, silane coupling agent and water is 1:(0.01～0.1): (10～30), described water bath heating temperature is 50～55 ℃, described ultrasonic jitter time is 10～60 minutes;
In step 2) in, described heat-storage heat preservation material is inorganic heat-storage heat preservation material, and the mass ratio of this heat-storage heat preservation material and active attapulgite soil is 2～8, and described high-speed stirring jitter time is 10～60 minutes;
In step 4), described foamed ceramic blank and the mass ratio of active attapulgite soil are 8～15, the mass ratio of described whipping agent and foamed ceramic blank is 1:50～100, described Ball-milling Time is 4～6 hours, described high temperature sintering condition is: be first warming up to 300 ℃～400 ℃, be incubated 1～2 hour, continue to be warming up to 800～1000 ℃, be incubated 1～3 hour.
Further, described inorganic heat-storage heat preservation material is, is calculated in mass percent, and comprises rinkolite powder 40%～60%, titanium dioxide powder 5%～10%, sodium sulfate 10%～30%, aluminium powder 10%～30%.
Further, described inorganic heat-storage heat preservation material, its preparation method is:
1) take by weight percentage rinkolite powder, titanium dioxide powder, sodium sulfate and aluminium powder, through mixing, grinding, make mixed powder;
2) water-soluble polymer silane coupling agent is added drop-wise in deionized water, the acidic solution regulation system pH value that is 5%～15% by mass concentration is 3～6, again system is warming up to 60 ℃～80 ℃, add prepared mixed powder, insulated and stirred 1～3 hour, vacuum filtration, dehydration, make modified powder, wherein the mass ratio of water-soluble polymer silane coupling agent and deionized water is 0.005～0.02: 1, and the mass ratio of mixed powder and water-soluble polymer silane coupling agent is 5～15: 1.
Wherein, described polymer silane coupling agent is the one in polyethylene to graft glycidyl methacrylate or Research of Grafting Malaic Anhydride Onto Polyethylene.
The mass ratio of active attapulgite soil of the present invention, silane coupling agent and water is 1:(0.01～0.1): (10～30).
Whipping agent of the present invention, represents, be made up of rhombspar 32%～52%, calcium carbonate 25%～35%, calcium sulfate 5%～10%, carbon dust 10%～18% and silica flour 5%～10%, described whipping agent is particulate state by mass percentage, and particle diameter is 30～100 μ m.
Further, described whipping agent is made by following method:
(1) batch mixing: rhombspar, calcium carbonate, calcium sulfate are prepared burden, mix after 0.5～3 hour and obtain powder with vibromill;
(2) sand milling: above-mentioned powder is put into sand mill, add carbon dust, silica flour, deionized water and polyethylene of dispersing agent alcohol simultaneously, sand milling obtains slurry for 0.5～3 hour;
(3) granulation: the slurry after above-mentioned sand milling is carried out to granulation by sponging granulator.
Wherein, step 2) described in the mass ratio of carbon dust, silica flour, deionized water and polyethylene of dispersing agent alcohol be: (1～3.6): 1:(5～15): (0.1～0.6).
The present invention compared with prior art, the advantage having is: 1) the present invention by adding inorganic heat-storage heat preservation material in ceramic batch, the mutual congruent melting of material matrix and whipping agent under high temperature, there is chemical reaction, material internal presents intensive closed pore pore, finally obtained the lagging material structure of porousness, lightweight; 2), by the foaming process that heats up stage by stage, improve the homogeneity of the aperture structure of foam ceramic material; 3) adopt whipping agent of the present invention can carry out the foam production of foamed ceramics at than the temperature of low 200～300 ℃ of common whipping agent, reduce energy consumption; 4) rhombspar in whipping agent, can decomposite a large amount of gas, and the carbon dust selected, silica flour, as conditioning agent, not only regulate the foam performance of whipping agent, and strengthened the heat resistance of foamed ceramics.
Embodiment
Below in conjunction with embodiment, the present invention is described further, but the invention is not restricted to these embodiment.
embodiment 1
1) take 1 gram, 100 grams, active attapulgite soil, silane coupling agent and be dissolved in 1 kg water, heating in water bath to 50 ℃, ultrasonic dispersion 10 minutes, obtains viscous liquid;
2) in the prepared viscous liquid of step 1), add 200 grams of inorganic heat-storage heat preservation materials, high-speed stirring is disperseed 10 minutes, obtains heat-storage heat preservation material dispersion liquid;
3) by step 2) dispersion liquid of gained is dry, ball milling and granulation, obtains composite grain;
4) composite grain step 3) being made, 800 grams of foamed ceramic blanks and 40 grams of whipping agents add in ball mill ball milling 4 hours, then carry out high temperature sintering, sintering oven is first warming up to 300 ℃, is incubated 1 hour, continues to be warming up to 800 ℃, be incubated 1 hour, make foam ceramic thermal insulation material.
embodiment 2
1) take 10 grams, 100 grams, active attapulgite soil, silane coupling agent and be dissolved in 3 kg water, heating in water bath to 55 ℃, ultrasonic dispersion 60 minutes, obtains viscous liquid;
2) in the prepared viscous liquid of step 1), add 800 grams of inorganic heat-storage heat preservation materials, high-speed stirring is disperseed 60 minutes, obtains heat-storage heat preservation material dispersion liquid;
3) by step 2) dispersion liquid of gained is dry, ball milling and granulation, obtains composite grain;
4) composite grain step 3) being made, 1500 grams of foamed ceramic blanks and 30 grams of whipping agents are added in ball mill ball milling 6 hours, then carry out high temperature sintering, sintering oven is first warming up to 400 ℃, is incubated 2 hours, continues to be warming up to 1000 ℃, be incubated 3 hours, make foam ceramic thermal insulation material.
In embodiment 1～2, the inorganic heat-storage heat preservation material of employing, foamed ceramic blank and whipping agent are commercially available prod.
embodiment 3
The foam ceramic thermal insulation material preparation process of the present embodiment is with embodiment 1.But the inorganic heat-storage heat preservation material in the present embodiment and whipping agent are self-control.The inorganic heat-storage heat preservation material of the present embodiment, is calculated in mass percent, and comprises rinkolite powder 40%～60%, titanium dioxide powder 5%～10%, sodium sulfate 10%～30% and aluminium powder 10%～30%.This inorganic heat-storage heat preservation material preparation method is:
1) by weight percentage, take rinkolite powder, titanium dioxide powder, sodium sulfate and aluminium powder, through mixing, grinding, make mixed powder;
2) polyethylene to graft glycidyl methacrylate or Research of Grafting Malaic Anhydride Onto Polyethylene are added drop-wise in deionized water, the acidic solution regulation system pH value that is 5% by mass concentration is 3～6, again system is warming up to 60 ℃～80 ℃, add prepared mixed powder, insulated and stirred 1～3 hour, vacuum filtration, dehydration, make modified powder, wherein the mass ratio of water-soluble polymer silane coupling agent and deionized water is 0.005～0.02: 1, and the mass ratio of mixed powder and water-soluble polymer silane coupling agent is 5～15: 1.Wherein, acidic solution is hydrochloric acid, sulfuric acid or salpeter solution.
Described whipping agent in the present embodiment, represent by mass percentage, be made up of rhombspar 32%～52%, calcium carbonate 25%～35%, calcium sulfate 5%～10%, carbon dust 10%～18% and silica flour 5%～10%, described whipping agent is particulate state, and particle diameter is 30～100 μ m.Described whipping agent is made by following method:
(1) batch mixing: rhombspar, calcium carbonate, calcium sulfate are prepared burden, mix after 0.5～3 hour and obtain powder with vibromill;
(2) sand milling: above-mentioned powder is put into sand mill, add carbon dust, silica flour, deionized water and polyethylene of dispersing agent alcohol simultaneously, sand milling obtains slurry in 0.5～3 hour, and wherein the mass ratio of carbon dust, silica flour, deionized water and polyethylene of dispersing agent alcohol is: (1～3.6): 1:(5～15): (0.1～0.6);
(3) granulation: the slurry after above-mentioned sand milling is carried out to granulation by sponging granulator.
embodiment 4
The foam ceramic thermal insulation material preparation process of the present embodiment is with embodiment 2.The inorganic heat-storage heat preservation material of the present embodiment and whipping agent preparation process are with embodiment 3.
The batching situation of embodiment 1～4 can represent by following table:
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Active attapulgite soil | 100 grams | 100 grams | 100 grams | 100 grams |
| Silane coupling agent | 1 gram | 10 grams | 1 gram | 10 grams |
| Water | 1000 grams | 3000 grams | 1000 grams | 3000 grams |
| Inorganic heat-storage heat preservation material | 200 grams, commercially available | 800 grams, commercially available | 200 grams, self-control | 800 grams, self-control |
| Foamed ceramic blank | 800 grams, commercially available | 1500 grams, commercially available | 800 grams, commercially available | 1500 grams, commercially available |
| Whipping agent | 40 grams, commercially available | 30 grams, commercially available | 40 grams, self-control | 30 grams, self-control |
The homemade inorganic heat-storage heat preservation material of the present invention and whipping agent, performance is better than commercially available prod.Whipping agent can carry out the foam production of froth foam at than the temperature of low 200～300 ℃ of commercially available common whipping agent, reduces energy consumption; Rhombspar in whipping agent, can decomposite a large amount of gas, and the carbon dust selected, silica flour, as conditioning agent, not only regulate the foam performance of whipping agent, and strengthened the heat resistance of foamed ceramics.
The present invention is not limited to above embodiment; embodiment 1～4 is only used to principle of the present invention is described and the illustrative embodiments that adopts; but for those skilled in the art; do not departing under real situation of the present invention; can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (8)
1. a preparation method for insulating foam stupalith, is characterized in that preparation process is as follows:
By soluble in water to active attapulgite soil and silane coupling agent, heating in water bath, ultrasonic dispersion, obtains viscous liquid;
In the prepared viscous liquid of step 1), add heat-storage heat preservation material, high-speed stirring is disperseed, and obtains heat-storage heat preservation material dispersion liquid;
By step 2) dispersion liquid of gained is dry, ball milling and granulation, obtains composite grain;
The composite grain that step 3) is made, foamed ceramic blank and whipping agent add ball milling in ball mill, then carry out high temperature sintering, make foam ceramic thermal insulation material.
2. the preparation method of a kind of insulating foam stupalith according to claim 1, is characterized in that:
In step 1), the mass ratio of described active attapulgite soil, silane coupling agent and water is 1:(0.01～0.1): (10～30), described water bath heating temperature is 50～55 ℃, described ultrasonic jitter time is 10～60 minutes;
Step 2) in, described heat-storage heat preservation material is inorganic heat-storage heat preservation material, and the mass ratio of this heat-storage heat preservation material and active attapulgite soil is 2～8, and described high-speed stirring jitter time is 10～60 minutes;
In step 4), described foamed ceramic blank and the mass ratio of active attapulgite soil are 8～15, the mass ratio of described whipping agent and foamed ceramic blank is 1:20～50, described Ball-milling Time is 4～6 hours, described high temperature sintering condition is: be first warming up to 300 ℃～400 ℃, be incubated 1～2 hour, continue to be warming up to 800～1000 ℃, be incubated 1～3 hour.
3. the preparation method of a kind of insulating foam stupalith according to claim 2, it is characterized in that: described inorganic heat-storage heat preservation material, be calculated in mass percent, comprise rinkolite powder 40%～60%, titanium dioxide powder 5%～10%, sodium sulfate 10%～30% and aluminium powder 10%～30%.
4. the preparation method of a kind of insulating foam stupalith according to claim 3, is characterized in that: described inorganic heat-storage heat preservation material preparation method is:
By weight percentage, take rinkolite powder, titanium dioxide powder, sodium sulfate and aluminium powder, through mixing, grinding, make mixed powder;
Water-soluble polymer silane coupling agent is added drop-wise in deionized water, the acidic solution regulation system pH value that is 5%～15% by mass concentration is 3～6, again system is warming up to 60 ℃～80 ℃, add prepared mixed powder, insulated and stirred 1～3 hour, vacuum filtration, dehydration, make modified powder, wherein the mass ratio of water-soluble polymer silane coupling agent and deionized water is 0.005～0.02: 1, and the mass ratio of mixed powder and water-soluble polymer silane coupling agent is 5～15: 1.
5. the preparation method of a kind of insulating foam stupalith according to claim 4, is characterized in that: described polymer silane coupling agent is the one in polyethylene to graft glycidyl methacrylate or Research of Grafting Malaic Anhydride Onto Polyethylene.
6. the preparation method of a kind of insulating foam stupalith according to claim 1, it is characterized in that: the whipping agent described in step 4), represent by mass percentage, formed by rhombspar 32%～52%, calcium carbonate 25%～35%, calcium sulfate 5%～10%, carbon dust 10%～18% and silica flour 5%～10%, described whipping agent is particulate state, and particle diameter is 30～100 μ m.
7. the preparation method of a kind of insulating foam stupalith according to claim 6, is characterized in that: described whipping agent is made by following method:
(1) batch mixing: rhombspar, calcium carbonate, calcium sulfate are prepared burden, mix after 0.5～3 hour and obtain powder with vibromill;
(2) sand milling: above-mentioned powder is put into sand mill, add carbon dust, silica flour, deionized water and polyethylene of dispersing agent alcohol simultaneously, sand milling obtains slurry for 0.5～3 hour;
(3) granulation: the slurry after above-mentioned sand milling is carried out to granulation by sponging granulator.
8. the preparation method of a kind of insulating foam stupalith according to claim 7, is characterized in that: step 2) described in the mass ratio of carbon dust, silica flour, deionized water and polyethylene of dispersing agent alcohol be: (1～3.6): 1:(5～15): (0.1～0.6).
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Cited By (5)
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| CN104164582A (en) * | 2014-09-04 | 2014-11-26 | 丹阳市国美汽配有限公司 | Foaming agent for foamed aluminum materials and preparation technique thereof |
| CN104529511A (en) * | 2014-12-17 | 2015-04-22 | 南京理工大学常熟研究院有限公司 | Preparation method of foamed ceramic |
| CN106946572A (en) * | 2017-03-31 | 2017-07-14 | 美科特种材料股份有限公司 | A kind of many material mixed types improve hollow foam ceramic material of intensity and preparation method thereof |
| CN107434426A (en) * | 2017-07-21 | 2017-12-05 | 武汉科技大学 | A kind of mullite multi-stage porous ceramics and preparation method thereof |
| CN108046839A (en) * | 2017-12-19 | 2018-05-18 | 罗洪梅 | A kind of recessed soil matrix porous ceramics of chemical modification and preparation method thereof |
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| CN104529511B (en) * | 2014-12-17 | 2016-05-04 | 南京理工大学常熟研究院有限公司 | A kind of preparation method of foam ceramic material |
| CN106946572A (en) * | 2017-03-31 | 2017-07-14 | 美科特种材料股份有限公司 | A kind of many material mixed types improve hollow foam ceramic material of intensity and preparation method thereof |
| CN107434426A (en) * | 2017-07-21 | 2017-12-05 | 武汉科技大学 | A kind of mullite multi-stage porous ceramics and preparation method thereof |
| CN108046839A (en) * | 2017-12-19 | 2018-05-18 | 罗洪梅 | A kind of recessed soil matrix porous ceramics of chemical modification and preparation method thereof |
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