CN113213870A - Better-performance light plastering gypsum - Google Patents
Better-performance light plastering gypsum Download PDFInfo
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- CN113213870A CN113213870A CN202110464855.XA CN202110464855A CN113213870A CN 113213870 A CN113213870 A CN 113213870A CN 202110464855 A CN202110464855 A CN 202110464855A CN 113213870 A CN113213870 A CN 113213870A
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- plastering gypsum
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- light plastering
- gypsum
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- 239000010440 gypsum Substances 0.000 title claims abstract description 95
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 95
- 239000002994 raw material Substances 0.000 claims abstract description 67
- 239000000835 fiber Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 38
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000004816 latex Substances 0.000 claims abstract description 19
- 229920000126 latex Polymers 0.000 claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 14
- 150000001413 amino acids Chemical class 0.000 claims abstract description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 12
- 239000001341 hydroxy propyl starch Substances 0.000 claims abstract description 12
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 12
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 12
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 12
- 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 claims abstract description 12
- 235000013828 hydroxypropyl starch Nutrition 0.000 claims abstract description 12
- 239000011325 microbead Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000009736 wetting Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 7
- 238000012216 screening Methods 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 13
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 7
- 239000003242 anti bacterial agent Substances 0.000 claims description 7
- 239000000084 colloidal system Substances 0.000 claims description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000011787 zinc oxide Substances 0.000 claims description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 230000003449 preventive effect Effects 0.000 claims description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 229920003086 cellulose ether Polymers 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims 1
- 229920001038 ethylene copolymer Polymers 0.000 claims 1
- 238000004321 preservation Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 6
- 238000005336 cracking Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000001514 detection method Methods 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
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000007873 sieving Methods 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses light plastering gypsum with better performance, which comprises the following raw materials in parts by weight: 70-90 parts of calcined building gypsum, 12-15 parts of 400-mesh heavy calcium carbonate and 5-10 parts of 7-10-mesh wavy microbeads; 0.8-2 parts of amino acid retarder; 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 2-3 parts of redispersible latex powder; 1-1.5 parts of wetting powder, screening the raw materials of each component by using a screen, weighing the raw materials of the light plastering gypsum according to a set proportion, uniformly mixing the raw materials, and drying to obtain the light plastering gypsum, wherein when the light plastering gypsum is prepared into slurry and smeared, the ratio of the light plastering gypsum to water is 1: 0.4 to 0.42; the invention has better heat preservation performance, effectively prevents gypsum fluid from flowing downwards and dripping, and has better blow-crack resistance effect.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to light plastering gypsum with better performance.
Background
Along with the rapid development of market economy in China and the improvement of the quality level of life of people, people have higher and higher expectations for building decoration quality, in the construction of interior walls, the traditional cement mortar and mixed mortar have poor water retention during hydration and drying, large shrinkage rate, easy problems of hollowing and cracking of wall surfaces, slow setting and hardening, long decoration period and the like, are easy to occur when the construction is not standard, have high on-site repair rate, and can not meet the requirements of indoor plastering quality and construction period more and more. The plastering gypsum is a novel plastering material, has the advantages of firm bonding with a base layer, no hollowing, no falling, micro-expansion in hydration, no cracking, convenient construction, early strength, quick hardening, fire resistance, heat preservation, sound insulation, self-regulation of indoor temperature, environmental protection and the like, and has high popularization and application values.
However, the existing lightweight plastering gypsum still has the following problems: the dripping of gypsum fluids down stream results in construction difficulties, poor blow-out resistance, and poor thermal insulation, and thus improvements are needed.
Disclosure of Invention
The invention aims to provide light plastering gypsum with better performance, which solves the problems of difficult construction, poor blow-crack resistance effect and poor heat preservation caused by the downward flow and dripping of gypsum fluid in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a light plastering gypsum with better performance comprises the following raw materials in parts by weight: 70-90 parts of calcined building gypsum, 12-15 parts of 400-mesh heavy calcium carbonate and 5-10 parts of 7-10-mesh wavy microbeads; 0.8-2 parts of amino acid retarder; 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 2-3 parts of redispersible latex powder; 1-1.5 parts of wetting powder, screening the raw materials of each component by using a screen, weighing the raw materials of the light plastering gypsum according to a set proportion, uniformly mixing the raw materials, and drying to obtain the light plastering gypsum, wherein when the light plastering gypsum is prepared into slurry and smeared, the ratio of the light plastering gypsum to water is 1: 0.4 to 0.42.
Further, the feed also comprises the following raw materials in parts by weight: 1-2 parts of nano zinc oxide antibacterial agent.
Further, the feed also comprises the following raw materials in parts by weight: 2-3 parts of aluminum silicate fiber.
Further, the feed also comprises the following raw materials in parts by weight: 0.2-0.5 part of anti-crack fiber expanding agent, wherein the anti-crack fiber expanding agent comprises the following raw materials in parts by weight: 96-98% of expanding agent, 0.15-0.18% of fiber and 0.5-4% of dispersing agent.
Further, the feed also comprises the following raw materials in parts by weight: 0.2-0.5 part of anti-settling auxiliary agent.
Further, the anti-settling aid comprises one or more of a low viscosity cellulose ether and a modified bentonite.
Further, the feed also comprises the following raw materials in parts by weight: 0.1-0.3 part of mildew preventive.
Further, the feed comprises the following raw materials in parts by weight: 88 parts of calcined building gypsum, 13 parts of 400-mesh heavy calcium carbonate and 5 parts of 7-10-mesh wavy microbeads; 1 part of amino acid retarder; 0.8 part of hydroxypropyl methyl cellulose; 0.6 part of hydroxypropyl starch ether; 0.8 parts of anti-crack fibers; 2 parts of redispersible latex powder; 1 part of wetting powder, each component raw material is respectively screened by a screen mesh, then each raw material component of the light plastering gypsum is weighed according to a set proportion, the components are uniformly mixed and dried, the light plastering gypsum can be prepared, and when the light plastering gypsum is prepared into slurry and smeared, the proportion of the light plastering gypsum to water is 1: 0.4.
furthermore, the diameter of the aluminum silicate fiber is 4-5 mm.
Further, the re-dispersible latex powder is vinyl acetate and ethylene copolymerized rubber powder, and polyvinyl alcohol is used as a protective colloid.
Compared with the prior art, the invention has the following beneficial effects: the heat insulation performance is high, meanwhile, gypsum fluid cannot easily flow downwards and drip, construction is finally convenient, and the blow-crack resistance effect is good.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the embodiment provided by the invention comprises the following steps: a light plastering gypsum with better performance comprises the following raw materials in parts by weight: 70-90 parts of calcined building gypsum, 12-15 parts of 400-mesh heavy calcium carbonate and 5-10 parts of 7-10-mesh wavy microbeads; 0.8-2 parts of amino acid retarder; 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 2-3 parts of redispersible latex powder; 1-1.5 parts of wetting powder, screening the raw materials of each component by using a screen, weighing the raw materials of the light plastering gypsum according to a set proportion, uniformly mixing the raw materials, and drying to obtain the light plastering gypsum, wherein when the light plastering gypsum is prepared into slurry and smeared, the ratio of the light plastering gypsum to water is 1: 0.4 to 0.42.
Further, the feed also comprises the following raw materials in parts by weight: 1-2 parts of nano zinc oxide antibacterial agent.
Further, the feed also comprises the following raw materials in parts by weight: 2-3 parts of aluminum silicate fiber.
Further, the feed also comprises the following raw materials in parts by weight: 0.2-0.5 part of anti-crack fiber expanding agent, wherein the anti-crack fiber expanding agent comprises the following raw materials in parts by weight: 96-98% of expanding agent, 0.15-0.18% of fiber and 0.5-4% of dispersing agent.
Further, the feed also comprises the following raw materials in parts by weight: 0.2-0.5 part of anti-settling auxiliary agent.
Further, the anti-settling aid comprises one or more of a low viscosity cellulose ether and a modified bentonite.
Further, the feed also comprises the following raw materials in parts by weight: 0.1-0.3 part of mildew preventive.
Further, the feed comprises the following raw materials in parts by weight: 88 parts of calcined building gypsum, 13 parts of 400-mesh heavy calcium carbonate and 5 parts of 7-10-mesh wavy microbeads; 1 part of amino acid retarder; 0.8 part of hydroxypropyl methyl cellulose; 0.6 part of hydroxypropyl starch ether; 0.8 parts of anti-crack fibers; 2 parts of redispersible latex powder; 1 part of wetting powder, each component raw material is respectively screened by a screen mesh, then each raw material component of the light plastering gypsum is weighed according to a set proportion, the components are uniformly mixed and dried, the light plastering gypsum can be prepared, and when the light plastering gypsum is prepared into slurry and smeared, the proportion of the light plastering gypsum to water is 1: 0.4.
furthermore, the diameter of the aluminum silicate fiber is 4-5 mm.
Further, the re-dispersible latex powder is vinyl acetate and ethylene copolymerized rubber powder, and polyvinyl alcohol is used as a protective colloid.
Example 2:
the embodiment provided by the invention comprises the following steps: a light plastering gypsum with better performance comprises the following raw materials in parts by weight: 70-90 parts of calcined building gypsum, 12-15 parts of 400-mesh heavy calcium carbonate and 5-10 parts of 7-10-mesh wavy microbeads; 0.8-2 parts of amino acid retarder; 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 2-3 parts of redispersible latex powder; 1-1.5 parts of wetting powder and 1-2 parts of nano zinc oxide antibacterial agent; 2-3 parts of aluminum silicate fiber; 0.2-0.5 part of anti-crack fiber expanding agent and 0.2-0.5 part of anti-settling auxiliary agent; 0.1-0.3 parts of mildew preventive; the anti-crack fiber expanding agent comprises the following raw materials in parts by weight: 96-98% of expanding agent, 0.15-0.18% of fiber and 0.5-4% of dispersing agent; screening raw materials of the components by using a screen, weighing the raw materials of the light plastering gypsum according to a set proportion, uniformly mixing the raw materials, and drying to obtain the light plastering gypsum, wherein when the light plastering gypsum is prepared into slurry and smeared, the ratio of the light plastering gypsum to water is 1: 0.4 to 0.42;
in this embodiment, the light plastering gypsum with better performance comprises the following raw materials in parts by weight: 86 parts of calcined building gypsum, 14 parts of 400-mesh heavy calcium carbonate and 6 parts of 7-10-mesh wavy microbeads; 1.2 of an amino acid retarder; 0.6 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.6 parts of anti-crack fibers; 2-3 parts of redispersible latex powder; 1.2 parts of wetting powder and 1.5 parts of nano zinc oxide antibacterial agent; 2-3 parts of aluminum silicate fiber; 0.3 part of anti-crack fiber expanding agent and 0.4 part of anti-settling auxiliary agent; 0.2 part of mildew preventive; the anti-crack fiber expanding agent comprises the following raw materials in parts by weight: 97% of expanding agent, 0.16% of fiber and 2.84% of dispersing agent; screening raw materials of the components by using a screen, weighing the raw materials of the light plastering gypsum according to a set proportion, uniformly mixing the raw materials, and drying to obtain the light plastering gypsum, wherein when the light plastering gypsum is prepared into slurry and smeared, the ratio of the light plastering gypsum to water is 1: 0.41;
further, the anti-settling aid comprises one or more of a low viscosity cellulose ether and a modified bentonite.
Further, the diameter of the aluminum silicate fiber is 4.5 mm.
Further, the re-dispersible latex powder is vinyl acetate and ethylene copolymerized rubber powder, and polyvinyl alcohol is used as a protective colloid.
Example 3:
the embodiment provided by the invention comprises the following steps: a light plastering gypsum with better performance comprises the following raw materials in parts by weight: 85 parts of calcined building gypsum, 14 parts of 400-mesh heavy calcium carbonate and 7 parts of 7-10-mesh wavy microbeads; 1.5 parts of amino acid retarder; 0.7 part of hydroxypropyl methyl cellulose; 0.8 part of hydroxypropyl starch ether; 1 part of anti-crack fiber; 2.5 parts of redispersible latex powder; 1.2 parts of wetting powder, each component raw material is respectively screened by a screen mesh, then each raw material component of the light plastering gypsum is weighed according to a set proportion, the components are uniformly mixed and dried, the light plastering gypsum can be prepared, and when the light plastering gypsum is prepared into slurry and smeared, the ratio of the light plastering gypsum to water is 1: 0.41.
further, the feed also comprises the following raw materials in parts by weight: 0.2-0.5 part of anti-settling auxiliary agent.
Further, the anti-settling aid comprises one or more of a low viscosity cellulose ether and a modified bentonite.
In this example 0.4 parts of the anti-settling additive is used.
Further, the re-dispersible latex powder is vinyl acetate and ethylene copolymerized rubber powder, and polyvinyl alcohol is used as a protective colloid.
Example 4:
the embodiment provided by the invention comprises the following steps: a light plastering gypsum with better performance comprises the following raw materials in parts by weight: 70 parts of calcined building gypsum, 12 parts of 400-mesh heavy calcium carbonate and 8 parts of 7-10-mesh wavy microbeads; 0.8 part of amino acid retarder; 0.5 part of hydroxypropyl methyl cellulose; 0.5 part of hydroxypropyl starch ether; 0.5 parts of anti-crack fibers; 2 parts of redispersible latex powder; 1 part of wetting powder, each component raw material is respectively screened by a screen mesh, then each raw material component of the light plastering gypsum is weighed according to a set proportion, the components are uniformly mixed and dried, the light plastering gypsum can be prepared, and when the light plastering gypsum is prepared into slurry and smeared, the proportion of the light plastering gypsum to water is 1: 0.4.
further, the feed also comprises the following raw materials in parts by weight: 1-2 parts of a nano zinc oxide antibacterial agent; 2-3 parts of aluminum silicate fiber. In the embodiment, the nano zinc oxide antibacterial agent is 1 part, and the aluminum silicate fiber is 2 parts.
Furthermore, the diameter of the aluminum silicate fiber is 4-5 mm. The aluminium silicate fibres have a diameter of 5mm in this example.
Further, the re-dispersible latex powder is vinyl acetate and ethylene copolymerized rubber powder, and polyvinyl alcohol is used as a protective colloid.
Example 5:
the embodiment provided by the invention comprises the following steps: a light plastering gypsum with better performance comprises the following raw materials in parts by weight: 90 parts of calcined building gypsum, 15 parts of 400-mesh heavy calcium carbonate and 9 parts of 10-mesh wavy microbeads; 2 parts of an amino acid retarder; 1 part of hydroxypropyl methylcellulose; 1 part of hydroxypropyl starch ether; 1 part of anti-crack fiber; 3 parts of redispersible latex powder; 1.5 parts of wetting powder, which is prepared by respectively sieving raw materials of each component by using a screen, then weighing each raw material component of the light plastering gypsum according to a set proportion, uniformly mixing the raw material components, and drying the raw material components to obtain the light plastering gypsum, wherein when the light plastering gypsum is prepared into slurry and smeared, the ratio of the light plastering gypsum to water is 1: 0.4 to 0.42.
Further, the feed also comprises the following raw materials in parts by weight: 0.1-0.3 part of mildew preventive. In this example, the amount of the fungicide is 0.2 parts.
Further, the re-dispersible latex powder is vinyl acetate and ethylene copolymerized rubber powder, and polyvinyl alcohol is used as a protective colloid.
The following is an experimental result of the light heat-preservation anti-cracking plastering gypsum obtained by the invention, gypsum slurry used in the experiment is prepared in the examples 1 to 5, the light heat-preservation anti-cracking plastering gypsum slurry prepared by the invention is prepared into a test block of 40mm multiplied by 160mm according to the requirements of the light bottom layer plastering gypsum in the national standard GB/T28627-2012 plastering gypsum, the performance parameters of the test block are detected, and the detection result is shown in the following table
In conclusion, the light plastering gypsum with better performance prepared by the invention has high heat preservation, meanwhile, the gypsum fluid can not easily flow downwards and drip, and finally, the construction is convenient, and the blow-crack resistance effect is good.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. The light plastering gypsum with better performance is characterized by comprising the following raw materials in parts by weight: 70-90 parts of calcined building gypsum, 12-15 parts of 400-mesh heavy calcium carbonate and 5-10 parts of 7-10-mesh wavy microbeads; 0.8-2 parts of amino acid retarder; 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 2-3 parts of redispersible latex powder; 1-1.5 parts of wetting powder, screening the raw materials of each component by using a screen, weighing the raw materials of the light plastering gypsum according to a set proportion, uniformly mixing the raw materials, and drying to obtain the light plastering gypsum, wherein when the light plastering gypsum is prepared into slurry and smeared, the ratio of the light plastering gypsum to water is 1: 0.4 to 0.42.
2. The better-performing light plastering gypsum of claim 1, wherein: the feed also comprises the following raw materials in parts by weight: 1-2 parts of nano zinc oxide antibacterial agent.
3. The better-performing light plastering gypsum of claim 1, wherein: the feed also comprises the following raw materials in parts by weight: 2-3 parts of aluminum silicate fiber.
4. The better-performing light plastering gypsum of claim 1, wherein: the feed also comprises the following raw materials in parts by weight: 0.2-0.5 part of anti-crack fiber expanding agent, wherein the anti-crack fiber expanding agent comprises the following raw materials in parts by weight: 96-98% of expanding agent, 0.15-0.18% of fiber and 0.5-4% of dispersing agent.
5. The better-performing light plastering gypsum of claim 1, wherein: the feed also comprises the following raw materials in parts by weight: 0.2-0.5 part of anti-settling auxiliary agent.
6. The better-performing light plastering gypsum of claim 5, wherein: the anti-settling aid comprises one or more of low viscosity cellulose ether and modified bentonite.
7. The better-performing light plastering gypsum of claim 1, wherein: the feed also comprises the following raw materials in parts by weight: 0.1-0.3 part of mildew preventive.
8. The better-performing light plastering gypsum of claim 1, wherein: the feed comprises the following raw materials in parts by weight: 88 parts of calcined building gypsum, 13 parts of 400-mesh heavy calcium carbonate and 5 parts of 7-10-mesh wavy microbeads; 1 part of amino acid retarder; 0.8 part of hydroxypropyl methyl cellulose; 0.6 part of hydroxypropyl starch ether; 0.8 parts of anti-crack fibers; 2 parts of redispersible latex powder; 1 part of wetting powder, each component raw material is respectively screened by a screen mesh, then each raw material component of the light plastering gypsum is weighed according to a set proportion, the components are uniformly mixed and dried, the light plastering gypsum can be prepared, and when the light plastering gypsum is prepared into slurry and smeared, the proportion of the light plastering gypsum to water is 1: 0.4.
9. a better performing lightweight plastering gypsum according to claim 3, wherein: the diameter of the aluminum silicate fiber is 4-5 mm.
10. The better-performing light plastering gypsum of claim 1, wherein: the re-dispersible latex powder is vinyl acetate-ethylene copolymer powder, and polyvinyl alcohol is used as protective colloid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110464855.XA CN113213870A (en) | 2021-04-28 | 2021-04-28 | Better-performance light plastering gypsum |
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| CN202110464855.XA CN113213870A (en) | 2021-04-28 | 2021-04-28 | Better-performance light plastering gypsum |
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| CN202110464855.XA Pending CN113213870A (en) | 2021-04-28 | 2021-04-28 | Better-performance light plastering gypsum |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044661A (en) * | 2021-12-03 | 2022-02-15 | 贵州国锐鑫节能科技有限公司 | Solar heat-absorbing and heat-releasing phosphogypsum insulation board and preparation method thereof |
| CN114149238A (en) * | 2021-11-30 | 2022-03-08 | 浙江益森科技股份有限公司 | Light plastering gypsum for building and preparation method thereof |
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