CN107459319A - A kind of preparation method of light-weight environment-friendly gypsum dividing plate - Google Patents
A kind of preparation method of light-weight environment-friendly gypsum dividing plate Download PDFInfo
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- CN107459319A CN107459319A CN201710673873.2A CN201710673873A CN107459319A CN 107459319 A CN107459319 A CN 107459319A CN 201710673873 A CN201710673873 A CN 201710673873A CN 107459319 A CN107459319 A CN 107459319A
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- China
- Prior art keywords
- gypsum
- parts
- dividing plate
- preparation
- paper web
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 56
- 239000010440 gypsum Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000002657 fibrous material Substances 0.000 claims abstract description 8
- 241000722949 Apocynum Species 0.000 claims description 30
- 239000000835 fiber Substances 0.000 claims description 30
- 241000209094 Oryza Species 0.000 claims description 23
- 235000007164 Oryza sativa Nutrition 0.000 claims description 23
- 235000009566 rice Nutrition 0.000 claims description 23
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 16
- 239000001095 magnesium carbonate Substances 0.000 claims description 16
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 16
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 15
- 238000007493 shaping process Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000009835 boiling Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- -1 polyoxyethylene Polymers 0.000 claims description 7
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- 238000005660 chlorination reaction Methods 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 238000007711 solidification Methods 0.000 abstract description 6
- 230000008023 solidification Effects 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000001473 noxious effect Effects 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract description 2
- 239000002341 toxic gas Substances 0.000 abstract description 2
- 239000006071 cream Substances 0.000 description 7
- 239000004575 stone Substances 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 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 1
- 238000005253 cladding Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/12—Multiple coating or impregnating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
The invention discloses a kind of preparation method of light-weight environment-friendly gypsum dividing plate, includes four fibrous material pretreatment, the making of paper web keel, the preparation of gypsum slurry and solidification steps.The sheet material of gypsum dividing plate prepared by the inventive method is overall lighter, and sheet material greatly reduces the weight of sheet material in the case where ensureing the preferable mechanical strength of sheet material using paper web as keel；Sheet material is also more environmentally friendly, the addition of the gypsum dividing plate without noxious volatile organic matter, toxic gas will not be distributed to the interior space, safer；The manufacturing cost of gypsum dividing plate is lower, and the gypsum sheet material uses more cheap raw material, the keel that there is hollow paper web to be formed inside sheet material, is more saved with material, cost is greatly lowered.
Description
Technical field
The present invention relates to a kind of plasterboard, more precisely, being a kind of preparation method of light-weight environment-friendly gypsum dividing plate.
Background technology
In current Process of Engineering Construction, the use of plasterboard becomes more and more extensive.Plasterboard is with plaster of Paris
For a kind of material made of primary raw material.It is it is a kind of it is in light weight, intensity is higher, thinner thickness, easy to process and sound insulation are exhausted
The construction material of the better performances such as heat and fire prevention, it is current one of novel light sheet material of development emphatically.Plasterboard is used extensively
Internal partition wall, wall cladding boards, ceiling, sound-absorbing in the various buildings such as house, office building, shop, hotel and industrial premises
Plate, ground layer plate and various decorative panels etc..
Plasterboard can be as the internal partition wall of building, and the plasterboard plate body as internal partition wall is thicker also more heavy, stone
The transport and construction of cream plate are all not convenient enough.Be commonly used as the plasterboard of internal partition wall with the addition of in gypsum material compared with
More chemical materials, pollution is easily caused to room air, is unfavorable for health.
The content of the invention
The present invention mainly solves the technical problem present in prior art, so as to provide a kind of light-weight environment-friendly gypsum dividing plate
Preparation method.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
A kind of preparation method of light-weight environment-friendly gypsum dividing plate, is comprised the following steps：
1. fibrous material pre-processes：Apocynum fibre silk is cut into the short silk of 2-4cm length, is put into 3-6% concentration
30-40 minutes are soaked in sodium chloride solution, apocynum fibre silk is pulled out and uniformly spreads out on sieve plate, with the polyoxy of 1-3% concentration
Change the dilute uniformly sprinkling of second, filament is then put into dryer low temperature drying together with sieve plate；
2. the making of paper web keel：The equal paper web of thickness is equidistantly placed in parallel, connected admittedly with thin wire between paper web
It is fixed, make the center keel of gypsum dividing plate；
3. the preparation of gypsum slurry：Apocynum fibre silk 30-40 parts, the land plaster 200- of step 1 preparation are taken by weight
230 parts, ground rice 20-30 parts, magnesium carbonate 6-12 parts, water 280-320 parts, pour into ground rice after boiling is boiled, boil 10-15 minutes,
Mixer is poured into after naturally cooling to room temperature, then apocynum fibre silk, land plaster, ground rice, magnesium carbonate are added into mixer stirring
Gypsum slurry uniformly is made；
4. solidify:Center keel are put into shaping frame, gypsum slurry is poured into shaping frame, is obtained after curing molding
Gypsum sheet material.
As preferred embodiments of the present invention, the paper web diameter of described step 2. center keel is less than gypsum block board thickness
1/2.
As preferred embodiments of the present invention, described step 3. in take 36 parts of apocynum fibre silk, gypsum by weight
210 parts of powder, 23 parts of ground rice, 9 parts of magnesium carbonate, 300 parts of water.
Gypsum dividing plate prepared by the inventive method has the following advantages that：
1. sheet material is overall lighter, sheet material is big in the case where ensureing the preferable mechanical strength of sheet material using paper web as keel
The big weight for reducing sheet material；
2. environmental protection, the addition of the gypsum dividing plate without noxious volatile organic matter, will not distribute toxic gas to the interior space,
It is safer；
3. manufacturing cost is low, the gypsum sheet material uses more cheap raw material, inside sheet material there is hollow paper web to be formed
Keel, more saved with material, cost is greatly lowered.
Embodiment
The preferred embodiments of the present invention are described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly defined so as to be made to protection scope of the present invention.
[embodiment 1]
Fibrous material pre-processes：Apocynum fibre silk is cut into the short silk of 2cm length, is put into the sodium chloride of 3% concentration
Soaked 30 minutes in solution, pull apocynum fibre silk out and uniformly spread out on sieve plate, with the dilute uniformly spray of the polyoxyethylene of 1% concentration
Spill, filament is then put into dryer low temperature drying together with sieve plate.
The making of paper web keel：The equal paper web of thickness is equidistantly placed in parallel, is connected between paper web with thin wire,
Make the center keel of gypsum dividing plate.
The preparation of gypsum slurry：30 parts of apocynum fibre silk, 200 parts of land plaster, ground rice 20 after drying are taken by weight
Part, 6 parts of magnesium carbonate, 280 parts of water, ground rice are poured into after boiling is boiled, boiled 10 minutes, stirring is poured into after naturally cooling to room temperature
Machine, then apocynum fibre silk, land plaster, ground rice, magnesium carbonate addition mixer are stirred and gypsum slurry are made.
Solidification:Center keel are put into shaping frame, gypsum slurry is poured into shaping frame, stone is obtained after curing molding
Cream sheet material.
[embodiment 2]
Fibrous material pre-processes：Apocynum fibre silk is cut into the short silk of 4cm length, is put into the sodium chloride of 6% concentration
Soaked 40 minutes in solution, pull apocynum fibre silk out and uniformly spread out on sieve plate, with the dilute uniformly spray of the polyoxyethylene of 3% concentration
Spill, filament is then put into dryer low temperature drying together with sieve plate.
The making of paper web keel：The equal paper web of thickness is equidistantly placed in parallel, is connected between paper web with thin wire,
Make the center keel of gypsum dividing plate.
The preparation of gypsum slurry：40 parts of apocynum fibre silk, 230 parts of land plaster, ground rice 30 after drying are taken by weight
Part, 12 parts of magnesium carbonate, 320 parts of water, ground rice are poured into after boiling is boiled, boiled 15 minutes, stirring is poured into after naturally cooling to room temperature
Machine, then apocynum fibre silk, land plaster, ground rice, magnesium carbonate addition mixer are stirred and gypsum slurry are made.
Solidification:Center keel are put into shaping frame, gypsum slurry is poured into shaping frame, stone is obtained after curing molding
Cream sheet material.
[embodiment 3]
Fibrous material pre-processes：Apocynum fibre silk is cut into the short silk of 2.5cm length, is put into the chlorination of 4% concentration
Soaked 33 minutes in sodium solution, pull apocynum fibre silk out and uniformly spread out on sieve plate, it is dilute with the polyoxyethylene of 1.5% concentration
Even sprinkling, filament is then put into dryer low temperature drying together with sieve plate.
The making of paper web keel：The equal paper web of thickness is equidistantly placed in parallel, is connected between paper web with thin wire,
Make the center keel of gypsum dividing plate.
The preparation of gypsum slurry：33 parts of apocynum fibre silk, 210 parts of land plaster, ground rice 23 after drying are taken by weight
Part, 8 parts of magnesium carbonate, 290 parts of water, ground rice are poured into after boiling is boiled, boiled 12 minutes, stirring is poured into after naturally cooling to room temperature
Machine, then apocynum fibre silk, land plaster, ground rice, magnesium carbonate addition mixer are stirred and gypsum slurry are made.
Solidification:Center keel are put into shaping frame, gypsum slurry is poured into shaping frame, stone is obtained after curing molding
Cream sheet material.
[embodiment 4]
Fibrous material pre-processes：Apocynum fibre silk is cut into the short silk of 3.5cm length, is put into the chlorination of 5% concentration
Soaked 37 minutes in sodium solution, pull apocynum fibre silk out and uniformly spread out on sieve plate, it is dilute with the polyoxyethylene of 2.5% concentration
Even sprinkling, filament is then put into dryer low temperature drying together with sieve plate.
The making of paper web keel：The equal paper web of thickness is equidistantly placed in parallel, is connected between paper web with thin wire,
Make the center keel of gypsum dividing plate.
The preparation of gypsum slurry：37 parts of apocynum fibre silk, 220 parts of land plaster, ground rice 27 after drying are taken by weight
Part, 10 parts of magnesium carbonate, 310 parts of water, ground rice are poured into after boiling is boiled, boiled 14 minutes, stirring is poured into after naturally cooling to room temperature
Machine, then apocynum fibre silk, land plaster, ground rice, magnesium carbonate addition mixer are stirred and gypsum slurry are made.
Solidification:Center keel are put into shaping frame, gypsum slurry is poured into shaping frame, stone is obtained after curing molding
Cream sheet material.
[embodiment 5]
Fibrous material pre-processes：Apocynum fibre silk is cut into the short silk of 3cm length, is put into the chlorination of 4.5% concentration
Soaked 35 minutes in sodium solution, pull apocynum fibre silk out and uniformly spread out on sieve plate, it is dilute uniformly with the polyoxyethylene of 2% concentration
Sprinkling, is then put into dryer low temperature drying by filament together with sieve plate.
The making of paper web keel：The equal paper web of thickness is equidistantly placed in parallel, is connected between paper web with thin wire,
Make the center keel of gypsum dividing plate.
The preparation of gypsum slurry：35 parts of apocynum fibre silk, 215 parts of land plaster, ground rice 25 after drying are taken by weight
Part, 9 parts of magnesium carbonate, 300 parts of water, ground rice are poured into after boiling is boiled, boiled 12.5 minutes, stirring is poured into after naturally cooling to room temperature
Machine, then apocynum fibre silk, land plaster, ground rice, magnesium carbonate addition mixer are stirred and gypsum slurry are made.
Solidification:Center keel are put into shaping frame, gypsum slurry is poured into shaping frame, stone is obtained after curing molding
Cream sheet material.
[contrast experiment]
The gypsum dividing plate of same thickness prepared by Example 1-5, while take the stone of 3 kinds of conventional same thickness of in the market
Cream plate carries out contrast test, and test result is as follows：
As can be seen from the comparison result, existing gypsum dividing plate weight of the gypsum dividing plate that prepared by the inventive method compared with same thickness
Amount is lighter, is more beneficial for the construction of the transport of material.The more existing gypsum of intensity of gypsum dividing plate prepared by the inventive method simultaneously
Also tool is greatly improved for dividing plate, and the tension and compressive property of dividing plate are highly improved.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
The change or replacement expected without creative work, it should all be included within the scope of the present invention.Therefore, it is of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (3)
1. a kind of preparation method of light-weight environment-friendly gypsum dividing plate, it is characterised in that comprise the following steps：
1. fibrous material pre-processes：Apocynum fibre silk is cut into the short silk of 2-4cm length, is put into the chlorination of 3-6% concentration
30-40 minutes are soaked in sodium solution, apocynum fibre silk is pulled out and uniformly spreads out on sieve plate, with the polyoxyethylene of 1-3% concentration
Dilute uniformly sprinkling, is then put into dryer low temperature drying by filament together with sieve plate；
2. the making of paper web keel：The equal paper web of thickness is equidistantly placed in parallel, is connected, done with thin wire between paper web
Into the center keel of gypsum dividing plate；
3. the preparation of gypsum slurry：Apocynum fibre silk 30-40 parts, the land plaster 200-230 of step 1 preparation are taken by weight
Part, ground rice 20-30 parts, magnesium carbonate 6-12 parts, water 280-320 parts, ground rice are poured into after boiling is boiled, boil 10-15 minutes, natural
Mixer is poured into after being cooled to room temperature, then apocynum fibre silk, land plaster, ground rice, magnesium carbonate are added mixer and stirred
Gypsum slurry is made；
4. solidify:Center keel are put into shaping frame, gypsum slurry is poured into shaping frame, gypsum is obtained after curing molding
Sheet material.
2. the preparation method of light-weight environment-friendly gypsum dividing plate according to claim 1, it is characterised in that described step 2. in
The paper web diameter of heart keel is less than the 1/2 of gypsum block board thickness.
3. the preparation method of light-weight environment-friendly gypsum dividing plate according to claim 2, it is characterised in that described step 3. in
36 parts of apocynum fibre silk, 210 parts of land plaster, 23 parts of ground rice, 9 parts of magnesium carbonate, 300 parts of water are taken by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710673873.2A CN107459319A (en) | 2017-08-09 | 2017-08-09 | A kind of preparation method of light-weight environment-friendly gypsum dividing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710673873.2A CN107459319A (en) | 2017-08-09 | 2017-08-09 | A kind of preparation method of light-weight environment-friendly gypsum dividing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107459319A true CN107459319A (en) | 2017-12-12 |
Family
ID=60548552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710673873.2A Withdrawn CN107459319A (en) | 2017-08-09 | 2017-08-09 | A kind of preparation method of light-weight environment-friendly gypsum dividing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107459319A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851081A (en) * | 2009-04-03 | 2010-10-06 | 秦永超 | Glass fiber reinforced gypsum product, and preparation method and equipment thereof |
| CN105016691A (en) * | 2014-04-18 | 2015-11-04 | 北新集团建材股份有限公司 | Gypsum board and preparation method thereof |
| CN105365011A (en) * | 2015-11-04 | 2016-03-02 | 阜南县铭钰柳木工艺品有限公司 | Sterilizing and strength increasing pretreatment agent for wicker for wickerwork and preparation method of sterilizing and strength increasing pretreatment agent |
-
2017
- 2017-08-09 CN CN201710673873.2A patent/CN107459319A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851081A (en) * | 2009-04-03 | 2010-10-06 | 秦永超 | Glass fiber reinforced gypsum product, and preparation method and equipment thereof |
| CN105016691A (en) * | 2014-04-18 | 2015-11-04 | 北新集团建材股份有限公司 | Gypsum board and preparation method thereof |
| CN105365011A (en) * | 2015-11-04 | 2016-03-02 | 阜南县铭钰柳木工艺品有限公司 | Sterilizing and strength increasing pretreatment agent for wicker for wickerwork and preparation method of sterilizing and strength increasing pretreatment agent |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171212 |
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| WW01 | Invention patent application withdrawn after publication |