CN105130331A - Light-weight diatomite plate and preparation method thereof - Google Patents
Light-weight diatomite plate and preparation method thereof Download PDFInfo
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- CN105130331A CN105130331A CN201510441735.2A CN201510441735A CN105130331A CN 105130331 A CN105130331 A CN 105130331A CN 201510441735 A CN201510441735 A CN 201510441735A CN 105130331 A CN105130331 A CN 105130331A
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- diatomite
- diatomite plate
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 239000004568 cement Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 17
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004816 latex Substances 0.000 claims abstract description 8
- 229920000126 latex Polymers 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 241000208202 Linaceae Species 0.000 claims description 13
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000011435 rock Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 239000013530 defoamer Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 239000011398 Portland cement Substances 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical group O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims description 2
- 229940080314 sodium bentonite Drugs 0.000 claims description 2
- 229910000280 sodium bentonite Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 14
- 239000006004 Quartz sand Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract 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 abstract 2
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 238000009435 building construction Methods 0.000 abstract 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 abstract 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 abstract 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 abstract 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 abstract 1
- 239000000378 calcium silicate Substances 0.000 description 7
- 229910052918 calcium silicate Inorganic materials 0.000 description 7
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 7
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010456 wollastonite Substances 0.000 description 2
- 229910052882 wollastonite Inorganic materials 0.000 description 2
- 240000008564 Boehmeria nivea Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002977 hyperthermial effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Abstract
A light-weight diatomite plate is characterized by being prepared from following raw materials, by weight, 50-60 parts of diatomite, 15-25 parts of bentonite, 10-15 parts of cement, 0.5-2 parts of natural linen fiber, 10-15 parts of an expanded perlite powder material, 3-5 parts of re-dispersable latex powder, 0.5-1 part of hydroxypropyl methyl cellulose and 0.1-0.5 parts of a defoaming agent. The diatomite is far lower than quartz sand in hardness, so that the material is easier to cut during building construction, thereby greatly improving construction efficiency. Meanwhile, by means of the expanded perlite powder material, the diatomite plate is lighter in weight, so that an object of reducing weight in building is achieved. The diatomite cement plate is light in weight, is easy to cut, has the effects of insulating sound, preserving heat and being high in rupture strength.
Description
Technical field
The present invention relates to building material field, be specifically related to a kind of lightweight diatomite plate and preparation method thereof.
Background technology
At present, it is based on the material of construction of production lightweight, high strength and energy-conserving and environment-protective that trend is walked in the industrial development of world architecture material, its stable performance simultaneously, the characteristics such as deflection is little, be widely used in the construction work of World Developed Countries with its excellent performance of walking to get over, and range of application is more and more wider, has progressively developed into building field sheet material and has dominated one of material.Especially indoor decoration sheet material more attaching importance to environmental protection, more focuses on lightweight in construction simultaneously and easily processes.Existing calcium silicate board belongs to high density plate, main at more than 1.1g/cm3, and in raw material, dose quartz sand and the cement of vast scale, the cement of 30% ~ 40% is used in Chinese invention patent 201310352902.7, quartz sand 24 ~ 34% is used in Chinese patent 00119086.5, cement 26-57%, causes sheet material hardness high, and it is large to cut difficulty in construction.The density of existing low density calcium silicate board is generally at 0.6 ~ 0.9g/cm
3between, but its production technique generally uses secondary steam pressure, and raw materials cost, energy consumption and manufacturing cost are higher.Therefore develop a kind of lightweight, environmental protection, be easy to cut sheet material imperative.
Summary of the invention
Object of the present invention is just to provide a kind of lightweight diatomite plate and preparation method thereof, to overcome the deficiencies in the prior art.
The present invention is mainly by the following technical programs to realize above-mentioned purpose:
A kind of lightweight diatomite plate, it is characterized in that, be made up of the raw material of following weight part: diatomite 50 weight part ~ 60 weight part, wilkinite 15 weight part ~ 25 weight part, cement 10 weight part ~ 15 weight part, natural flax fiber 0.5 weight part ~ 2 weight part, expansion pearl rock powder 10 weight part ~ 15 weight part, redispersable latex powder 3 weight part ~ 5 weight part, Vltra tears 0.5 weight part ~ 1 weight part, defoamer 0.1 weight part ~ 0.5 weight part.
SiO in described diatomite
2content > 55wt%, its 150 mesh sieve margin is less than 1wt%.
Described wilkinite is sodium bentonite, wherein SiO
2content > 65wt%, its 150 mesh sieve margin is less than 1wt%.
Described cement is ordinary Portland cement.
The length of described natural flax fiber is 8 ~ 25mm.
The granularity of described expansion pearl rock powder is 100 ~ 150 orders.
The density of described lightweight diatomite plate is 0.82-0.85g/cm
3, cross direction tensile strength is 14.27-14.61MPa.
The present invention is main siliceous material with diatomite, because its diatomaceous chemical composition mainly SiO
2, containing a small amount of Al
2o
3, Fe
2o
3, CaO, MgO etc.Diatomaceous density 1.9-2.3g/cm
3, bulk density 0.34-0.65g/cm
3, specific surface area 40-65m
2/ g, chemical stability is high, fusing point 1650 DEG C-1750 DEG C, is the poor conductor of heat, electricity, sound, can observes the structure of special porous under an electron microscope.Diatomite Mohs' hardness is 1 ~ 1.5, far below 7.5 of quartz sand, can be used in the green sheet preparing lightweight, environmental protection, easily processing.
Meanwhile, the present invention also provides a kind of method preparing above-mentioned lightweight diatomite plate, comprises the following steps:
Step one, natural flax fiber is cut into the staple fibre of length 8mm ~ 25mm, takes out stand-by after dry 6 hours at 80 DEG C of loft drier;
Step 2, by the diatomite of 50 weight part ~ 60 weight parts, the wilkinite of 15 weight part ~ 25 weight parts, the cement of 10 weight part ~ 15 weight parts, the natural flax fiber after step one processes of 0.5 weight part ~ 2 weight part, the expansion pearl rock powder of 10 weight part ~ 15 weight parts, the redispersable latex powder of 3 weight part ~ 5 weight parts, the Vltra tears of 0.5 weight part ~ 1 weight part, the defoamer of 0.1 weight part ~ 0.5 weight part mixes, add water stirring again, obtain the compound that concentration is 15wt% ~ 21wt%, be made into the wet base of lightweight diatomite plate again,
Step 3, the wet base of lightweight diatomite plate step 2 obtained are placed in precuring case, and be under the condition of 31 ~ 35 DEG C in temperature, moisture maintenance 7-8h, obtains base substrate;
Step 4, base substrate obtained for step 3 is placed in autoclave, the saturation steam in 1.2 ~ 1.3MPa is depressed, constant voltage maintenance 9 ~ 10h, prepares lightweight diatomite plate;
Step 5, by lightweight diatomite plate obtained for step 4 by drying machine drying process, make its moisture content lower than 10wt%, obtain lightweight diatomite plate.
As preferably, adding water described in step 2 is stirred and is adopted following steps: add water to stir rises to 80 DEG C by temperature with the speed of 2 DEG C/s simultaneously, is incubated 30 minutes, then cools to 40 DEG C with the speed of 20 DEG C/min, be incubated 15 minutes; Rise to 50 DEG C with the speed of 2 DEG C/s again, be incubated 25 minutes, then naturally cool to room temperature, finally obtain the compound that concentration is 15wt% ~ 21wt%.By hyperthermic treatment rapidly, can refinement material particles further, make it mix fully.Material then can carry out coagulation treatment rapidly by rapid cooling, thus can repeatedly tentatively shape.
The present invention adopts dioxide-containing silica > 55wt% clayey diatomite to be that main raw material prepares lightweight diatomite plate, open the diatomaceous novelty teabag of middle-low grade in domestic diatomite Mineral resources, and diatomaceous hardness is well below quartz sand, building operation is made more to be easy to cutting, greatly improve operating efficiency, dose pearlstone material simultaneously, make diatom plate lightweight more, thus reach the object of loss of weight in building.Diacel cement plate of the present invention has the good characteristics such as lightweight, easily cutting, sound insulation, insulation, folding strength height.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
Step one, natural flax fiber is cut into length 8mm ~ 25mm staple fibre, takes out stand-by after dry 6 hours at 80 DEG C of loft drier;
Step 2, the Vltra tears of the redispersable latex powder of the expansion pearl rock powder of the natural flax fiber after step one processes of the cement of the wilkinite of the diatomite of weight part 50 weight part, 22 weight parts, 10.5 weight parts, 2 weight parts, 10 weight parts, 4 weight parts, 1 weight part, the defoamer of 0.5 weight part to be mixed, add water to stir and temperature is risen to 80 DEG C with the speed of 2 DEG C/s simultaneously, be incubated 30 minutes, then cool to 40 DEG C with the speed of 20 DEG C/min, be incubated 15 minutes; Rise to 50 DEG C with the speed of 2 DEG C/s again, be incubated 25 minutes, then naturally cool to room temperature, finally obtain the slip that concentration is 15% ~ 21%, then be made into the wet base of lightweight diatomite plate;
Step 3, the base that to be wet by lightweight diatomite plate obtained for step 2 are placed in precuring case, and be under the condition of 31 DEG C in temperature, moisture maintenance 7h, obtains base substrate;
Step 4, base substrate obtained for step 3 is placed in autoclave, in the pressure of 1.2MPa saturation steam, constant voltage maintenance 10h, prepares lightweight diatomite plate;
Step 5, by lightweight diatomite plate obtained for step 4 by drying machine drying process, make its moisture content lower than 10wt%, obtain lightweight diatomite plate.
Embodiment 2
Step one, natural ramie fiber is cut into length 8mm ~ 25mm staple fibre, takes out stand-by after dry 6 hours at 80 DEG C of loft drier;
Step 2, the Vltra tears of the redispersable latex powder of the expansion pearl rock powder of the natural flax fiber after step one processes of the cement of the wilkinite of the diatomite of weight part 54 weight part, 16 weight parts, 11 weight parts, 1.5 weight parts, 11.3 weight parts, 5 weight parts, 0.8 weight part, the defoamer of 0.4 weight part to be mixed, add water to stir and temperature is risen to 80 DEG C with the speed of 2 DEG C/s simultaneously, be incubated 30 minutes, then cool to 40 DEG C with the speed of 20 DEG C/min, be incubated 15 minutes; Rise to 50 DEG C with the speed of 2 DEG C/s again, be incubated 25 minutes, then naturally cool to room temperature, finally obtain the slip that concentration is 15% ~ 21%, then make the wet base of lightweight diatomite plate;
Step 3, the base that to be wet by lightweight diatomite plate obtained for step 2 are placed in precuring case, and be under the condition of 32 DEG C in temperature, moisture maintenance 8h, obtains base substrate;
Step 4, base substrate obtained for step 3 is placed in autoclave, in the pressure of 1.3MPa saturation steam, constant voltage maintenance 9.5h, prepares lightweight diatomite plate;
Step 5, by lightweight diatomite plate obtained for step 4 by drying machine drying process, make its moisture content lower than 10wt%, obtain lightweight diatomite plate.
Embodiment 3
Step one, natural flax fiber is cut into length 8mm ~ 25mm staple fibre, takes out stand-by after dry 6 hours at 80 DEG C of loft drier;
Step 2, the Vltra tears of the redispersable latex powder of the expansion pearl rock powder of the natural flax fiber after step one processes of the cement of the wilkinite of the diatomite of weight part 55 weight part, 17.1 weight parts, 12 weight parts, 1 weight part, 11 weight parts, 3 weight parts, 0.7 weight part, the defoamer of 0.2 weight part to be mixed, add water to stir and temperature is risen to 80 DEG C with the speed of 2 DEG C/s simultaneously, be incubated 30 minutes, then cool to 40 DEG C with the speed of 20 DEG C/min, be incubated 15 minutes; Rise to 50 DEG C with the speed of 2 DEG C/s again, be incubated 25 minutes, then naturally cool to room temperature, finally obtain the slip that concentration is 15% ~ 21%, then make the wet base of lightweight diatomite plate;
Step 3, the base that to be wet by lightweight diatomite plate obtained for step 2 are placed in precuring case, and be under the condition of 35 DEG C in temperature, moisture maintenance 7.5h, obtains base substrate;
Step 4, base substrate obtained for step 3 is placed in autoclave, in the pressure of 1.2MPa saturation steam, constant voltage maintenance 9h, prepares lightweight diatomite plate;
Step 5, by lightweight diatomite plate obtained for step 4 by drying machine drying process, make its moisture content lower than 10wt%, obtain lightweight diatomite plate.
Comparative example
Diatomite 44.4% (200 mesh sieve margins are 0.6wt%); Cement 35.7% (PO42.5); Lime 4.4% (CaO content > 65wt%, 200 mesh sieve margin < 20wt%); Paper pulp fiber 6.7% (reservation long fiber length is 1.6-2.7mm); Wollastonite 4.4% (200 mesh sieve margin < 1wt%); Wilkinite 4.4% (200 mesh sieve margin < 10wt%).
1) according to component design, paper pulp fiber is passed through metering, send in paste roller mill and loosen, for subsequent use when beating degree is 31-34SR;
2) above-mentioned wilkinite and water are measured according to the mass percent of 1:1, be placed in ageing 12-36h under room temperature, obtained activated gel;
3) then by above-mentioned diatomite, cement, lime, wollastonite and step 1) obtained paper pulp fiber and step 2) obtained by activated gel, mix, add water slurrying again, obtain the slip that mass percent concentration is 14%-20%, prepare light calcium silicate plate base substrate by slurry flowing process technique;
4) by step 3) obtained light calcium silicate plate base substrate in 20-30 DEG C, moisture maintenance 6h;
5) again by step 4) obtained light calcium silicate plate base substrate sends in autoclave, and in the pressure of 1.03MPa saturation steam, constant voltage 8h, prepares the sample of light calcium silicate plate;
6) finally its moisture is dried below 10wt% by the sample dryer of preparation, obtain described light calcium silicate plate.
The physicals detected result of the lightweight diatomite plate of table 1 embodiment 1 ~ 3 and comparative example gained
Note: horizontal anti-specific tenacity=cross direction tensile strength/density, the intensity level of reaction diatomite plate unit intensity.
Found out by the physicals detected result of diatom plate, along with the increasing of diatomite adding proportion, the corresponding minimizing of diatom plate density, but the not corresponding reduction of the intensity of unit intensity, with reference to JC/T564.1-2008 first part, intensity index meets industry standard completely.
Claims (9)
1. a lightweight diatomite plate, it is characterized in that, be made up of the raw material of following weight part: diatomite 50 weight part ~ 60 weight part, wilkinite 15 weight part ~ 25 weight part, cement 10 weight part ~ 15 weight part, natural flax fiber 0.5 weight part ~ 2 weight part, expansion pearl rock powder 10 weight part ~ 15 weight part, redispersable latex powder 3 weight part ~ 5 weight part, Vltra tears 0.5 weight part ~ 1 weight part, defoamer 0.1 weight part ~ 0.5 weight part.
2. a kind of lightweight diatomite plate according to claim 1, is characterized in that, SiO in described diatomite
2content > 55wt%, its 150 mesh sieve margin is less than 1wt%.
3., according to a kind of lightweight diatomite plate one of claim 1-2 Suo Shu, it is characterized in that, described wilkinite is sodium bentonite, wherein SiO
2content > 65wt%, its 150 mesh sieve margin is less than 1wt%.
4., according to a kind of lightweight diatomite plate one of claim 1-3 Suo Shu, it is characterized in that, described cement is ordinary Portland cement.
5. according to a kind of lightweight diatomite plate one of claim 1-4 Suo Shu, it is characterized in that, the length of described natural flax fiber is 8 ~ 25mm.
6. according to a kind of lightweight diatomite plate one of claim 1-6 Suo Shu, it is characterized in that, the granularity of described expansion pearl rock powder is 100 ~ 150 orders.
7. according to a kind of lightweight diatomite plate one of claim 1-6 Suo Shu, it is characterized in that, the density of described lightweight diatomite plate is 0.82-0.85g/cm
3, cross direction tensile strength is 14.27-14.61MPa.
8. a preparation method for lightweight diatomite plate, is characterized in that, comprises the following steps:
Step one, natural flax fiber is cut into the staple fibre of length 8mm ~ 25mm, takes out stand-by after dry 6 hours at 80 DEG C of loft drier;
Step 2, by the diatomite of 50 weight part ~ 60 weight parts, the wilkinite of 15 weight part ~ 25 weight parts, the cement of 10 weight part ~ 15 weight parts, the natural flax fiber after step one processes of 0.5 weight part ~ 2 weight part, the expansion pearl rock powder of 10 weight part ~ 15 weight parts, the redispersable latex powder of 3 weight part ~ 5 weight parts, the Vltra tears of 0.5 weight part ~ 1 weight part, the defoamer of 0.1 weight part ~ 0.5 weight part mixes, add water stirring again, obtain the compound that concentration is 15wt% ~ 21wt%, be made into the wet base of lightweight diatomite plate again,
Step 3, the wet base of lightweight diatomite plate step 2 obtained are placed in precuring case, and be under the condition of 31 ~ 35 DEG C in temperature, moisture maintenance 7-8h, obtains base substrate;
Step 4, base substrate obtained for step 3 is placed in autoclave, the saturation steam in 1.2 ~ 1.3MPa is depressed, constant voltage maintenance 9 ~ 10h, prepares lightweight diatomite plate;
Step 5, by lightweight diatomite plate obtained for step 4 by drying machine drying process, make its moisture content lower than 10wt%, obtain lightweight diatomite plate.
9. the preparation method of lightweight diatomite plate according to claim 8, it is characterized in that, add water described in step 2 stir concrete steps as follows: add water stir temperature is risen to 80 DEG C with the speed of 2 DEG C/s simultaneously, be incubated 30 minutes, then cool to 40 DEG C with the speed of 20 DEG C/min, be incubated 15 minutes; Rise to 50 DEG C with the speed of 2 DEG C/s again, be incubated 25 minutes, then naturally cool to room temperature, finally obtain the compound that concentration is 15wt% ~ 21wt%.
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|---|---|---|---|
| CN201510441735.2A CN105130331B (en) | 2015-07-26 | 2015-07-26 | A kind of light silica diatomaceous earth plate and preparation method thereof |
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|---|---|---|---|
| CN201510441735.2A CN105130331B (en) | 2015-07-26 | 2015-07-26 | A kind of light silica diatomaceous earth plate and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884285A (en) * | 2016-04-07 | 2016-08-24 | 东北电力大学 | Diatomite plate and processing method thereof |
| CN111704425A (en) * | 2020-06-03 | 2020-09-25 | 武汉理工大学 | Calcium silicate board containing sepiolite clay minerals and preparation method thereof |
| CN111718168A (en) * | 2020-03-04 | 2020-09-29 | 郑州知淘信息科技有限责任公司 | Asbestos-free composite fiber reinforced calcium silicate board and preparation method thereof |
-
2015
- 2015-07-26 CN CN201510441735.2A patent/CN105130331B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884285A (en) * | 2016-04-07 | 2016-08-24 | 东北电力大学 | Diatomite plate and processing method thereof |
| CN111718168A (en) * | 2020-03-04 | 2020-09-29 | 郑州知淘信息科技有限责任公司 | Asbestos-free composite fiber reinforced calcium silicate board and preparation method thereof |
| CN111704425A (en) * | 2020-06-03 | 2020-09-25 | 武汉理工大学 | Calcium silicate board containing sepiolite clay minerals and preparation method thereof |
| CN111704425B (en) * | 2020-06-03 | 2021-12-07 | 武汉理工大学 | Calcium silicate board containing sepiolite clay minerals and preparation method thereof |
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| CN105130331B (en) | 2016-08-24 |
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Effective date of registration: 20160606 Address after: 100085, building 8, No. 3, pioneering Road, Beijing, Haidian District Applicant after: BEIJING DONGTAI FUBO NEW MATERIAL SCIENCE & TECHNOLOGY CO., LTD. Applicant after: Liaoning Dongsheng Technology Group Co. Ltd. Address before: 100085, building 8, No. 3, pioneering Road, Beijing, Haidian District Applicant before: BEIJING DONGTAI FUBO NEW MATERIAL SCIENCE & TECHNOLOGY CO., LTD. Applicant before: Yingkou Dongsheng Industrial Co.,Ltd. |
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Address after: 100085, Beijing, Haidian District, three Li River Road, No. 10, building 39, 4, A4001 Applicant after: BEIJING DONGTAI FUBO NEW MATERIAL SCIENCE & TECHNOLOGY CO., LTD. Applicant after: Liaoning Dongsheng Technology Group Co. Ltd. Address before: 100085, building 8, No. 3, pioneering Road, Beijing, Haidian District Applicant before: BEIJING DONGTAI FUBO NEW MATERIAL SCIENCE & TECHNOLOGY CO., LTD. Applicant before: Liaoning Dongsheng Technology Group Co. Ltd. |
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Effective date of registration: 20191119 Address after: 115013 No.88, West Qinghua street, West urban area, Yingkou City, Liaoning Province Patentee after: Liaoning Dongsheng Technology Group Co. Ltd. Address before: 100085, Beijing, Haidian District, three Li River Road, No. 10, building 39, 4, A4001 Co-patentee before: Liaoning Dongsheng Technology Group Co. Ltd. Patentee before: BEIJING DONGTAI FUBO NEW MATERIAL SCIENCE & TECHNOLOGY CO., LTD. |
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