CN113248223A - Self-leveling gypsum - Google Patents
Self-leveling gypsum Download PDFInfo
- Publication number
- CN113248223A CN113248223A CN202110464877.6A CN202110464877A CN113248223A CN 113248223 A CN113248223 A CN 113248223A CN 202110464877 A CN202110464877 A CN 202110464877A CN 113248223 A CN113248223 A CN 113248223A
- Authority
- CN
- China
- Prior art keywords
- parts
- self
- raw materials
- leveling
- gypsum
- Prior art date
- 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.)
- Pending
Links
- 239000010440 gypsum Substances 0.000 title claims abstract description 53
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 53
- 239000002994 raw material Substances 0.000 claims abstract description 49
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004568 cement Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 15
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 239000001341 hydroxy propyl starch Substances 0.000 claims abstract description 11
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 11
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 11
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 11
- 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 11
- 235000013828 hydroxypropyl starch Nutrition 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 8
- 238000007873 sieving Methods 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 22
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- 150000003505 terpenes Chemical class 0.000 claims description 8
- 235000007586 terpenes Nutrition 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 6
- 230000003449 preventive effect Effects 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- 239000003242 anti bacterial agent Substances 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- -1 phenolic aldehyde Chemical class 0.000 claims description 4
- 229920006122 polyamide resin Polymers 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 229920003086 cellulose ether Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 11
- 239000004599 antimicrobial Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000012216 screening 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
- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses self-leveling gypsum which comprises the following raw materials in parts by weight: 60-70 parts of calcined building gypsum, 5-10 parts of masonry black cement and 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 1-1.5 parts of self-leveling composite rubber powder and 0.5-1.5 parts of defoaming agent, respectively sieving raw materials of each component by using a screen mesh, then weighing the raw materials according to a set proportion, uniformly mixing the raw materials, and drying to obtain gypsum; the invention has the advantages of good stability, strong leveling property, good blow-crack resistance effect and less bubbles.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to self-leveling gypsum.
Background
The self-leveling mortar is a novel floor material for self-leveling, which is modified by taking an inorganic gel material or an inorganic gel material as a base material and adding various additives, and is a material capable of quickly, economically and effectively obtaining a flat, firm or decorative floor. According to the different gel materials, the gel material can be divided into two categories of gypsum base and cement base. The gypsum-based self-leveling material is mainly used as a bottom self-leveling material, namely a laying support layer applied to a ground decorative layer. Compared with cement-based self-leveling, gypsum-based self-leveling generates micro-expansion in the setting and hardening process, does not generate shrinkage cracks, has good thermal stability and can be used as a floor heating leveling layer.
The gypsum-based material also has good heat preservation and sound insulation characteristics, has a breathing function, can adjust indoor temperature and humidity, can improve living comfort, has lower cost than cement-based self-leveling material, can reduce engineering cost, has economic advantages, has far lower energy consumption and production pollution in the production process than cement, has little harm to the environment, and is an environment-friendly building material
However, the existing gypsum still has the following problems: poor stability, poor leveling, poor blow-out resistance, and more bubbles, so improvements are needed.
Disclosure of Invention
The invention aims to provide self-leveling gypsum to solve the problems of poor stability, poor leveling property, poor blow-crack resistance and more bubbles in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the self-leveling gypsum comprises the following raw materials in parts by weight: 60-70 parts of calcined building gypsum, 5-10 parts of masonry black cement and 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 1-1.5 parts of self-leveling composite rubber powder and 0.5-1.5 parts of defoaming agent, respectively sieving the raw materials of each component by using a screen, then weighing the raw materials according to a set proportion, uniformly mixing the raw materials, and drying to obtain the gypsum.
Further, the feed also comprises the following raw materials in parts by weight: 12-15 parts of ore tailings.
Further, the feed also comprises the following raw materials in parts by weight: 1-2 parts of nano zinc oxide antibacterial agent.
Further, the self-leveling composite rubber powder is an ethylene/vinyl acetate copolymer.
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: 0.15-0.2 part of mildew preventive.
Further, the feed also comprises the following raw materials in parts by weight: 0.2-0.5 parts of functional resin.
Further, the functional resin comprises one or more of polyamide resin, hydrogenated petroleum resin, terpene resin and phenolic aldehyde modified terpene resin.
Compared with the prior art, the invention has the following beneficial effects: the method has the advantages of good stability, strong leveling property, good blow-crack resistance effect and less bubbles.
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: the self-leveling gypsum comprises the following raw materials in parts by weight: 60-70 parts of calcined building gypsum, 5-10 parts of masonry black cement and 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 1-1.5 parts of self-leveling composite rubber powder and 0.5-1.5 parts of defoaming agent, respectively sieving the raw materials of each component by using a screen, then weighing the raw materials according to a set proportion, uniformly mixing the raw materials, and drying to obtain the gypsum.
The self-leveling gypsum in the embodiment comprises the following raw materials in parts by weight: 61 parts of calcined building gypsum, 10 parts of masonry black cement and 0.5 part of hydroxypropyl methyl cellulose; 0.5 part of hydroxypropyl starch ether; 0.5 parts of anti-crack fibers; 1 part of self-leveling composite rubber powder and 0.5 part of defoaming agent.
Example 2:
the embodiment provided by the invention comprises the following steps: the self-leveling gypsum comprises the following raw materials in parts by weight: 60-70 parts of calcined building gypsum, 5-10 parts of masonry black cement and 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 1-1.5 parts of self-leveling composite rubber powder and 0.5-1.5 parts of defoaming agent, respectively sieving the raw materials of each component by using a screen, then weighing the raw materials according to a set proportion, uniformly mixing the raw materials, and drying to obtain the gypsum.
Further, the feed also comprises the following raw materials in parts by weight: 1-2 parts of nano zinc oxide antibacterial agent. .
Further, the self-leveling composite rubber powder is an ethylene/vinyl acetate copolymer.
Further, the feed also comprises the following raw materials in parts by weight: 0.15-0.2 part of mildew preventive.
The self-leveling gypsum in the embodiment comprises the following raw materials in parts by weight: 65 parts of calcined building gypsum, 5 parts of masonry black cement and 0.7 part of hydroxypropyl methyl cellulose; 0.7 part of hydroxypropyl starch ether; 0.5 parts of anti-crack fibers; 1 part of self-leveling composite rubber powder, 0.5 part of defoaming agent and 0.16 part of mildew preventive, and 1.3 parts of nano zinc oxide anti-microbial agent.
Example 3:
the embodiment provided by the invention comprises the following steps: the self-leveling gypsum comprises the following raw materials in parts by weight: 60-70 parts of calcined building gypsum, 5-10 parts of masonry black cement and 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 1-1.5 parts of self-leveling composite rubber powder, 0.5-1.5 parts of defoaming agent, 0.15-0.2 part of mildew preventive, 0.2-0.5 part of functional resin, 0.2-0.5 part of anti-settling auxiliary agent, 1-2 parts of nano zinc oxide anti-microbial agent and 12-15 parts of ore tailings, screening the raw materials of the components by using a screen respectively, weighing the raw materials according to a set proportion, uniformly mixing the raw materials, and drying to obtain the gypsum.
The self-leveling gypsum in the embodiment comprises the following raw materials in parts by weight: 65 parts of calcined building gypsum, 6 parts of masonry black cement and 0.8 part of hydroxypropyl methyl cellulose; 0.8 part of hydroxypropyl starch ether; 0.6 parts of anti-crack fibers; 1.2 parts of self-leveling composite rubber powder, 1.3 parts of defoaming agent, 0.18 part of mildew inhibitor, 0.4 part of functional resin, 0.3 part of anti-settling auxiliary agent and the following components in parts by weight: 1.5 parts of nano zinc oxide antibacterial agent and 14 parts of ore tailings.
Further, the self-leveling composite rubber powder is an ethylene/vinyl acetate copolymer.
Further, the anti-settling aid comprises one or more of a low viscosity cellulose ether and a modified bentonite.
Further, the functional resin comprises one or more of polyamide resin, hydrogenated petroleum resin, terpene resin and phenolic aldehyde modified terpene resin.
Example 4:
the embodiment provided by the invention comprises the following steps: the self-leveling gypsum comprises the following raw materials in parts by weight: 65 parts of calcined building gypsum, 8 parts of masonry black cement and 0.6 part of hydroxypropyl methyl cellulose; 1 part of hydroxypropyl starch ether; 1 part of anti-crack fiber; 1.3 parts of self-leveling composite rubber powder and 1 part of defoaming agent, respectively sieving raw materials of each component by using a screen, then weighing the raw materials according to a set proportion, uniformly mixing the raw materials, and drying to obtain the gypsum.
Further, the feed also comprises the following raw materials in parts by weight: 0.2 to 0.5 part of a functional resin, and 0.4 part of the functional resin is described in the embodiment.
Further, the functional resin comprises one or more of polyamide resin, hydrogenated petroleum resin, terpene resin and phenolic aldehyde modified terpene resin.
Example 5:
the embodiment provided by the invention comprises the following steps: the self-leveling gypsum comprises the following raw materials in parts by weight: 70 parts of calcined building gypsum, 7 parts of masonry black cement and 1 part of hydroxypropyl methyl cellulose; 1 part of hydroxypropyl starch ether; 1 part of anti-crack fiber; 1.5 parts of self-leveling composite rubber powder and 1.5 parts of defoaming agent, respectively sieving the raw materials of each component by using a screen, then weighing the raw materials according to a set proportion, uniformly mixing the raw materials, and drying to obtain the gypsum.
Further, the feed also comprises the following raw materials in parts by weight: 12-15 parts of ore tailings, in this example 14 parts.
The following is an experimental result of the free flat gypsum obtained by the invention, the gypsum slurry used in the experiment is prepared in the examples 1 to 5, the free flat gypsum slurry prepared by the invention is prepared into a test block of 40mm × 40mm × 160mm according to the requirements of 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
In conclusion, the self-leveling gypsum prepared by the invention has the advantages of good stability, strong leveling property, good anti-blow-cracking effect and less bubbles.
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 (9)
1. The self-leveling gypsum is characterized by comprising the following raw materials in parts by weight: 60-70 parts of calcined building gypsum, 5-10 parts of masonry black cement and 0.5-1 part of hydroxypropyl methyl cellulose; 0.5-1 part of hydroxypropyl starch ether; 0.5-1 part of anti-crack fiber; 1-1.5 parts of self-leveling composite rubber powder and 0.5-1.5 parts of defoaming agent, respectively sieving the raw materials of each component by using a screen, then weighing the raw materials according to a set proportion, uniformly mixing the raw materials, and drying to obtain the gypsum.
2. A self-leveling gypsum according to claim 1, wherein: the feed also comprises the following raw materials in parts by weight: 12-15 parts of ore tailings.
3. A self-leveling gypsum according to claim 1, wherein: the feed also comprises the following raw materials in parts by weight: 1-2 parts of nano zinc oxide antibacterial agent.
4. A self-leveling gypsum according to claim 1, wherein: the self-leveling composite rubber powder is an ethylene/vinyl acetate copolymer.
5. A self-leveling gypsum according to 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. A self-leveling gypsum according to claim 5, wherein: the anti-settling aid comprises one or more of low viscosity cellulose ether and modified bentonite.
7. A self-leveling gypsum according to claim 1, wherein: the feed also comprises the following raw materials in parts by weight: 0.15-0.2 part of mildew preventive.
8. A self-leveling gypsum according to claim 1, wherein: the feed also comprises the following raw materials in parts by weight: 0.2-0.5 parts of functional resin.
9. A self-leveling gypsum according to claim 8, wherein: the functional resin comprises one or more of polyamide resin, hydrogenated petroleum resin, terpene resin and phenolic aldehyde modified terpene resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464877.6A CN113248223A (en) | 2021-04-28 | 2021-04-28 | Self-leveling gypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464877.6A CN113248223A (en) | 2021-04-28 | 2021-04-28 | Self-leveling gypsum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113248223A true CN113248223A (en) | 2021-08-13 |
Family
ID=77222000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110464877.6A Pending CN113248223A (en) | 2021-04-28 | 2021-04-28 | Self-leveling gypsum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113248223A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008126596A1 (en) * | 2007-04-05 | 2008-10-23 | Yoshino Gypsum Co., Ltd. | Self-leveling composition |
| CN101913832A (en) * | 2010-08-04 | 2010-12-15 | 李彦峰 | Antibacterial mildew-proof high-strength whitewash mortar |
| CN108059426A (en) * | 2016-11-09 | 2018-05-22 | 宋德红 | A kind of mould proof plasterboard of waterproof |
| CN108164239A (en) * | 2018-01-16 | 2018-06-15 | 四川华邦保和涂料有限公司 | A kind of preparation method of the water-fast gravity flowing levelling mortar of phosphorus paring stone cream base |
| CN112390605A (en) * | 2020-10-20 | 2021-02-23 | 长兴欧立亚新型建材有限公司 | Light moisture-proof sound-insulation plastering gypsum |
-
2021
- 2021-04-28 CN CN202110464877.6A patent/CN113248223A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008126596A1 (en) * | 2007-04-05 | 2008-10-23 | Yoshino Gypsum Co., Ltd. | Self-leveling composition |
| CN101913832A (en) * | 2010-08-04 | 2010-12-15 | 李彦峰 | Antibacterial mildew-proof high-strength whitewash mortar |
| CN108059426A (en) * | 2016-11-09 | 2018-05-22 | 宋德红 | A kind of mould proof plasterboard of waterproof |
| CN108164239A (en) * | 2018-01-16 | 2018-06-15 | 四川华邦保和涂料有限公司 | A kind of preparation method of the water-fast gravity flowing levelling mortar of phosphorus paring stone cream base |
| CN112390605A (en) * | 2020-10-20 | 2021-02-23 | 长兴欧立亚新型建材有限公司 | Light moisture-proof sound-insulation plastering gypsum |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国国家质量监督检验检疫总局等: "《GB/T28627-2012 抹灰石膏》", 31 July 2012, 中国标准出版社 * |
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| PB01 | Publication | ||
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Application publication date: 20210813 |