CN110790558A - Moisture-proof light plastering gypsum capable of releasing negative oxygen ions and preparation method thereof - Google Patents
Moisture-proof light plastering gypsum capable of releasing negative oxygen ions and preparation method thereof Download PDFInfo
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- CN110790558A CN110790558A CN201911122623.5A CN201911122623A CN110790558A CN 110790558 A CN110790558 A CN 110790558A CN 201911122623 A CN201911122623 A CN 201911122623A CN 110790558 A CN110790558 A CN 110790558A
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- -1 oxygen ions Chemical class 0.000 title claims abstract description 83
- 239000001301 oxygen Substances 0.000 title claims abstract description 81
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 81
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 62
- 239000010440 gypsum Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 38
- 239000003607 modifier Substances 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 18
- 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 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 230000002940 repellent Effects 0.000 claims description 4
- 239000005871 repellent Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical group 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 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 102000004169 proteins and genes Human genes 0.000 claims description 2
- 108090000623 proteins and genes Proteins 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 229910052613 tourmaline Inorganic materials 0.000 claims description 2
- 229940070527 tourmaline Drugs 0.000 claims description 2
- 239000011032 tourmaline Substances 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011325 microbead Substances 0.000 claims 1
- 238000005303 weighing Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 206010035664 Pneumonia Diseases 0.000 description 2
- 206010044302 Tracheitis Diseases 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 208000023504 respiratory system disease Diseases 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003905 indoor air pollution Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000005616 pyroelectricity Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 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
- C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
- C04B28/147—Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- 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
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
-
- 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)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The invention discloses moistureproof light plastering gypsum capable of releasing negative oxygen ions and a preparation method thereof, wherein the plastering gypsum comprises β semi-hydrated gypsum components, light aggregate components, pH regulator components, water retention agent components, modifier components, retarder components, waterproof agents and negative oxygen ion powder components, wherein β semi-hydrated gypsum components are 60-85 parts, light aggregate components are 8-15 parts, pH regulator components are 0-5 parts, water retention agent components are 0.1-0.5 part, modifier components are 0.01-0.1 part, waterproof agent components are 0.05-0.5 part, retarder components are 0.1-0.4 part and negative oxygen ion powder components are 1-10 parts.
Description
Technical Field
The invention belongs to the field of building materials, and particularly relates to moisture-proof light plastering gypsum capable of releasing negative oxygen ions and a preparation method thereof.
Background
In recent years, with the improvement of the living standard of people, people have higher and higher requirements on indoor decoration standards, and indoor air pollution has diversity, which includes both the diversity of pollutant types and the diversity of indoor pollutant sources, namely, physical pollution (dust particles and the like), chemical pollution (formaldehyde and the like), and microbial pollution (bacteria, viruses and the like). Because the indoor environment is a relatively closed space, the air circulation is poor, pollutants entering the room are easy to accumulate indoors, the pollution index is increased, the pollutant concentration is increased, and the harm to human bodies is further caused.
Generally, people need about 130 million negative oxygen ions per day, and our environment such as bedrooms, offices, entertainment places, etc. can only provide about 1-20 million negative oxygen ions. This large contrast between supply and demand often leads to respiratory diseases such as pneumonia and tracheitis.
At present, negative oxygen ions are often expelled due to an air conditioning system of central heating and cooling equipment used in a house; the used synthetic fiber and carpet have positive charges and are easy to absorb negative oxygen ions; and the wall body, the reinforcing steel bar and the fiber board of the house all absorb negative oxygen ions, so that the negative oxygen ions in the house are difficult to meet the requirements.
Disclosure of Invention
The invention aims to provide a moisture-proof light plastering gypsum capable of releasing negative oxygen ions.
To achieve the purpose of the invention, the moisture-proof releasable negative oxygen ion light plastering gypsum provided herein comprises β hemihydrate gypsum component, lightweight aggregate component, pH regulator component, water retention agent component, modifier component, retarder component, water repellent component and negative oxygen ion powder component.
Wherein the β hemihydrate gypsum component, the lightweight aggregate component, the pH regulator component, the water-retaining agent component, the modifier component, the retarder component, the water-proofing agent component and the negative oxygen ion component are in parts by weight:
the invention also aims to provide a method for preparing moisture-proof releasable negative oxygen ion light plastering gypsum, which specifically comprises the following steps:
step S01: firstly, mixing and stirring a pH regulator component, a water-retaining agent component, a modifier component, a retarder component and a negative oxygen ion component uniformly for later use;
step S02, adding β hemihydrate gypsum component into the mixture formed in the step S01 and stirring uniformly;
step S03: adding the lightweight aggregate component into the mixture formed in the step S02, and uniformly stirring to obtain a lightweight plastering gypsum powder material capable of releasing negative oxygen ions;
step S04: and (4) measuring the water consumption for the standard consistency of the light plastering gypsum powder material capable of releasing negative oxygen ions obtained in the step (S03), adding a waterproof agent into water in proportion, adding the light plastering gypsum powder material capable of releasing negative oxygen ions obtained in the step (S03), stirring into paste, and performing construction and drying to obtain the moisture-proof light plastering gypsum capable of releasing negative oxygen ions.
The invention has the beneficial effects that: the gypsum plaster provided by the invention is added with negative oxygen ion powder, and the negative oxygen ion powder can generate negative oxygen ions due to the pyroelectricity and piezoelectricity; the negative oxygen ions can promote the human body to synthesize and store vitamins, and strengthen and activate the physiological activities of the human body.
The plastering gypsum provided by the invention also comprises a gypsum component, so that the plastering gypsum has better flame retardance; the plastering gypsum provided by the invention also has the characteristics of heat insulation, sound absorption, impact resistance, moisture resistance and the like under the action of the water retention agent component, the modifier component, the retarder component and the waterproof agent component.
Detailed Description
In order to better understand the technical solutions provided by the present invention, the following embodiments are further illustrated, but the technical solutions claimed by the present invention are not limited to the following embodiments.
The invention provides moisture-proof light plastering gypsum capable of releasing negative oxygen ions, which comprises β semi-hydrated gypsum component, light aggregate component, pH regulator component, water retention agent component, modifier component, retarder component, waterproof agent component and negative oxygen ion powder component, wherein the weight proportions of the components are as follows.
Example one
The moisture-proof light plastering gypsum capable of releasing negative oxygen ions provided by the embodiment comprises β hemihydrate gypsum component, a light aggregate component, a pH regulator component, a water-retaining agent component, a modifier component, a retarder component, a waterproof agent component and negative oxygen ion powder component, wherein the components are as follows by weight:
weighing a pH regulator component, a water-retaining agent component, a modifier component, a retarder component and a negative oxygen ion powder component according to the weight parts of the formula, stirring the components in a stirrer for 3min to be used, weighing β semi-hydrated gypsum component according to the weight parts, pouring the weighed components into a gravity-free stirrer, adding the uniformly stirred pH regulator component, the water-retaining agent component, the modifier component, the retarder component and the negative oxygen ion component, stirring the components together with β semi-hydrated gypsum component in the gravity-free stirrer for 3min, finally adding a light aggregate component weighed according to the weight parts, stirring for 5min to prepare a uniformly stirred plastering gypsum powder material capable of releasing negative oxygen ions, measuring the standard water consumption of the powder material, adding a waterproof agent into water, adding the powder material, stirring the mixture into paste, and constructing and drying to obtain the moisture-proof type plastering gypsum capable of releasing negative oxygen ions.
Example two
The moisture-proof light plastering gypsum capable of releasing negative oxygen ions provided by the embodiment comprises β hemihydrate gypsum component, a light aggregate component, a pH regulator component, a water-retaining agent component, a modifier component, a retarder component, a waterproof agent component and negative oxygen ion powder component, wherein the components are as follows by weight:
weighing a pH regulator component, a water-retaining agent component, a modifier component, a retarder component and a negative oxygen ion powder component according to the weight parts of the formula, stirring the components in a stirrer for 3min to be used, weighing β semi-hydrated gypsum component according to the weight parts, pouring the weighed components into a gravity-free stirrer, adding the uniformly stirred pH regulator component, the water-retaining agent component, the modifier component, the retarder component and the negative oxygen ion component, stirring the components together with β semi-hydrated gypsum component in the gravity-free stirrer for 3min, finally adding a light aggregate component weighed according to the weight parts, stirring for 5min to prepare a uniformly stirred plastering gypsum powder material capable of releasing negative oxygen ions, measuring the standard water consumption of the powder material, adding a waterproof agent into water, adding the powder material, stirring the mixture into paste, and constructing and drying to obtain the moisture-proof type plastering gypsum capable of releasing negative oxygen ions.
EXAMPLE III
The moisture-proof light plastering gypsum capable of releasing negative oxygen ions provided by the embodiment comprises β hemihydrate gypsum component, a light aggregate component, a pH regulator component, a water-retaining agent component, a modifier component, a retarder component, a waterproof agent component and negative oxygen ion powder component, wherein the components are as follows by weight:
weighing a pH regulator component, a water-retaining agent component, a modifier component, a retarder component and a negative oxygen ion powder component according to the weight parts of the formula, stirring the components in a stirrer for 3min to be used, weighing β semi-hydrated gypsum component according to the weight parts, pouring the weighed components into a gravity-free stirrer, adding the uniformly stirred pH regulator component, the water-retaining agent component, the modifier component, the retarder component and the negative oxygen ion component, stirring the components together with β semi-hydrated gypsum component in the gravity-free stirrer for 3min, finally adding a light aggregate component weighed according to the weight parts, stirring for 5min to prepare a uniformly stirred plastering gypsum powder material capable of releasing negative oxygen ions, measuring the standard water consumption of the powder material, adding a waterproof agent into water, adding the powder material, stirring the mixture into paste, and constructing and drying to obtain the moisture-proof type plastering gypsum capable of releasing negative oxygen ions.
The moisture-proof releasable negative oxygen ion plastering gypsum provided in the first, second and third embodiments is placed in a standard laboratory for 24 hours, and is tested according to the national standards GB/T9775-2008 and GB/T26827-2012 for the performances of water absorption, oven dry breaking strength, oven dry compressive strength, tensile bond strength, actual coating area, negative oxygen ion release amount and the like for 2 hours, and the test results are as follows:
table 1 table of performance test results
| Testing performance | Example one | Example two | EXAMPLE III |
| Negative oxygen ion release amount/cm before test3 | 40 | 40 | 40 |
| Negative oxygen ion release amount per cm after test3 | 2300 | 4700 | 7100 |
| Absolute dry rupture strength/Mpa | 2.0 | 1.8 | 1.6 |
| Absolute dry compressive strength/Mpa | 4.2 | 4.0 | 3.6 |
| Tensile bond strength/MPa | 0.58 | 0.49 | 0.40 |
| Actual application area/m 2 | 130 | 130 | 130 |
| 2h water absorption/%) | 5 | 4 | 2 |
As can be seen from the table, the water absorption rate was gradually decreased and the negative oxygen ion release amount was gradually increased for 2 hours as the addition amounts of the waterproofing agent and the negative oxygen ion powder were gradually increased.
The β semi-hydrated gypsum described in the first, second and third embodiments is β semi-hydrated gypsum, which is prepared by calcining dihydrate gypsum at 140-150 ℃ for 2-6h and aging for 72h, and has a pH value of 6-7, and meets the 3.0 grade standard of building gypsum.
The lightweight aggregate components described in the first, second and third examples are closed-cell vitrified microspheres of 50-70 mesh, a water absorption of less than 10%, and a volume weight of 110-3(ii) a Of course, other lightweight aggregates may be used.
The components of the pH regulator described in the first, second and third embodiments are sierozem powder of 100-120 meshes; of course, other pH adjusting agents may be used.
The water retention agent described in the first embodiment, the second embodiment and the third embodiment is hydroxypropyl methyl cellulose ether, the viscosity is 50000-100000 Pa.s; of course, other water-retaining agents may be used.
Any of the modifiers described in examples one, two and three can be used, and starch ether is used herein.
The retarder components described in examples one, two and three may be any retarder, and here, a protein retarder is used.
The water repellent components described in examples one, two and three can be any water repellent, and methyl hydrogen silicone oil emulsion is used herein.
The oxygen anion powder described in the first, second and third embodiments may be any oxygen anion powder, and the oxygen anion powder is prepared by mixing 65% of rare earth, 30% of tourmaline powder, 5% of other mineral substances and 40000 negative oxygen ion release amount/cm3。
The moisture-proof light plastering gypsum capable of releasing negative oxygen ions provided by the invention has the advantages that the absolute dry breaking strength is more than 1.3MPa, the compressive strength is more than 2.5MPa, the tensile bonding strength is more than 0.3MPa, and the volume density is less than 1000Kg/m3The water absorption rate is less than or equal to 2h5% of negative oxygen ion releasing amount>2000 pieces/cm3The coating has the characteristics of good moisture resistance, large negative oxygen ion release amount, light weight, high strength, no hollowing, no cracking, environmental protection and the like, belongs to a functional plastering gypsum material, has market competitiveness compared with the traditional plastering gypsum material, and has important significance for promoting the comprehensive utilization of gypsum.
The first embodiment, the second embodiment and the third embodiment are stirred in the gravity-free stirrer, and the gravity-free stirrer can prevent the lightweight aggregate from being damaged in the stirring process, so that the coating area of the material can be increased.
When the plastering gypsum provided by the invention is used for plastering a house, the house can generate negative oxygen ions, the requirement of people on the negative oxygen ions is met, the respiratory diseases such as pneumonia and tracheitis are reduced, and healthy living is realized.
Plastering is a traditional construction method for plastering the surfaces of walls, floors and ceilings of house buildings by mortar; the plastering engineering comprises internal plastering and external plastering. Plastering at various indoor parts is generally called inner plastering, such as floor, ceiling, dado, skirting line, inner stairs and the like; the plastering at various outdoor positions is called external plastering, such as external walls, rainsheds, balconies, roofs and the like.
The inner plastering mainly protects the wall, improves the indoor sanitary condition, enhances the light reflection and beautifies the environment; in rooms which are easily corroded by moisture or acid and alkali, the protective layer mainly plays a role in protecting wall bodies, ceilings and floors.
The external plastering is mainly used for protecting the wall from being eroded by wind, rain and snow, improving the capabilities of moisture protection, weathering resistance and heat insulation of the wall and improving the durability of the wall, and is also one of measures for carrying out artistic treatment on the surfaces of various buildings.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (12)
1. A moisture-proof light plastering gypsum capable of releasing negative oxygen ions is characterized by comprising β semi-hydrated gypsum component, light aggregate component, pH regulator component, water retention agent component, modifier component, retarder component, waterproofing agent component and negative oxygen ion powder component.
2. The moisture-proof releasable negative oxygen ion light-weight plastering gypsum of claim 1, wherein the β hemihydrate gypsum component, the lightweight aggregate component, the pH regulator component, the water retention agent component, the modifier component, the retarder component, the water repellent component and the negative oxygen ion powder component are in parts by weight:
3. the moisture-proof releasable negative oxygen ion light-weight plastering gypsum of claim 1 or 2, wherein the β hemihydrate gypsum component meets the building gypsum 3.0 grade standard.
4. The moisture-proof releasable negative oxygen ion lightweight plastering gypsum according to claim 1 or 2, wherein: the light aggregate component is closed-cell vitrified micro-beads with 50-70 meshes, the water absorption rate is less than 10 percent, and the volume weight is 110-140kg/m3。
5. The moisture-proof releasable negative oxygen ion lightweight plastering gypsum according to claim 1 or 2, wherein: the pH regulator comprises ash calcium powder of 100-120 meshes.
6. The moisture-proof releasable negative oxygen ion lightweight plastering gypsum according to claim 1 or 2, wherein: the component of the water retention agent is hydroxypropyl methyl cellulose ether, and the viscosity is 50000-100000Pa & s.
7. The moisture-proof releasable negative oxygen ion lightweight plastering gypsum according to claim 1 or 2, wherein: the modifier component is starch ether.
8. The moisture-proof releasable negative oxygen ion lightweight plastering gypsum according to claim 1 or 2, wherein: the retarder component is a protein retarder.
9. The moisture-proof releasable negative oxygen ion lightweight plastering gypsum according to claim 1 or 2, wherein: the waterproof agent component is methyl hydrogen-containing silicone oil emulsion.
10. The moisture-proof releasable negative oxygen ion lightweight plastering gypsum according to claim 1 or 2, wherein: the negative oxygen ion powder comprises 65% of rare earth, 30% of tourmaline powder, 5% of other mineral substances and 40000 negative oxygen ion release amount/cm which are synthesized by mixing multiple elements3。
11. The preparation method of the moisture-proof releasable negative oxygen ion light plastering gypsum of any one of claims 1 to 10, which is characterized in that: the method comprises the following steps:
step S01: firstly, mixing and stirring a pH regulator component, a water-retaining agent component, a modifier component, a retarder component and a negative oxygen ion component uniformly for later use;
step S02, adding β hemihydrate gypsum component into the mixture formed in the step S01 and stirring uniformly;
step S03: adding the lightweight aggregate component into the mixture formed in the step S02, and uniformly stirring to obtain a lightweight plastering gypsum powder material capable of releasing negative oxygen ions;
step S04: and (4) measuring the water consumption for the standard consistency of the light plastering gypsum powder material capable of releasing negative oxygen ions obtained in the step (S03), adding a waterproof agent into water in proportion, adding the light plastering gypsum powder material capable of releasing negative oxygen ions obtained in the step (S03), stirring into paste, and performing construction and drying to obtain the moisture-proof light plastering gypsum capable of releasing negative oxygen ions.
12. The method of claim 11, wherein: the step S02 is to stir in a gravity-free stirrer.
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| CN113233858A (en) * | 2021-05-31 | 2021-08-10 | 首建新材料(山东)有限公司 | Environment-friendly plastering material for building interior walls and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008266066A (en) * | 2007-04-19 | 2008-11-06 | Eau De Merus Co Ltd | Powder for building material and building material containing powder for building material |
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