CN110804333B - Cement-based interior wall putty easy to polish - Google Patents
Cement-based interior wall putty easy to polish Download PDFInfo
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- CN110804333B CN110804333B CN201911156024.5A CN201911156024A CN110804333B CN 110804333 B CN110804333 B CN 110804333B CN 201911156024 A CN201911156024 A CN 201911156024A CN 110804333 B CN110804333 B CN 110804333B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
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- Sealing Material Composition (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to an easy-to-polish cement-based interior wall putty which comprises the following components in parts by weight: 75-90 parts of double-flying powder; 10-20 parts of white cement; 0.5-1 part of dispersible organic rubber powder; 0.1-0.5 parts of expansive soil; 1-1.5 parts of cationic polyacrylamide; 0.5-1 part of carboxymethyl cellulose; 0.1-0.2 part of silicon dioxide, 0.3-0.5 part of hydroxypropyl cellulose ether and 1-5 parts of polyvinyl alcohol fine powder; in the preparation process, the carboxymethyl cellulose and the cationic polyacrylamide are stirred, and then the hydroxypropyl cellulose ether is added. The invention achieves the following beneficial effects: the cement can be mutually adsorbed to form a glue film, the moisture is prevented from being rapidly volatilized, the cement hydration strength is delayed from being improved, the cement can be easily polished and formed after 72H construction is finished, and the requirements of a construction site are met.
Description
Technical Field
The invention relates to the technical field of putty, in particular to easy-to-polish cement-based interior wall putty.
Background
The putty is a material for filling and leveling the construction surface before the construction of decorative wall surfaces or plate surfaces, mainly aims to fill the pores of the construction surface and correct the curve deviation of the construction surface, and lays a foundation for obtaining uniform and smooth surface coatings. According to the classification of the JG/T298-. The putty powders of different types mainly differ in ingredients, so that the difference between water resistance and hardness is caused, and common putty (Y type) and flexible putty (R type) mainly use double-flying powder (white powder) and flexible rubber powder as main raw materials, while interior wall waterproof putty uses cement and flexible rubber powder as main raw materials, so that the interior wall waterproof putty powder has the advantages of strong cohesive force, good water resistance, long service life, no need of shoveling walls in secondary decoration and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the easy-to-polish cement-based interior wall putty and the preparation method thereof, wherein the easy-to-polish cement-based interior wall putty can adsorb each other to form an adhesive film, prevent moisture from volatilizing rapidly, prolong surface drying time and surface hardness and reserve enough polishing time for constructors.
The purpose of the invention is realized by the following technical scheme: an easily polished cement-based putty for inner wall surface is prepared from calcium carbonate, white cement, dispersible organic rubber powder, expansive soil, cationic polyacrylamide, carboxymethyl cellulose, silicon dioxide, hydroxypropyl cellulose ether and polyvinyl alcohol fine powder.
Wherein, the double flying powder and the white cement are common putty using materials, and the expansive soil belongs to common auxiliary materials in the putty.
In general water-proof putty, only carboxymethyl cellulose is used as an auxiliary material, so that the water resistance is not particularly ideal, and most intuitively, after the water content of the general water-proof putty is volatilized, the coating is gradually pulverized, cracked, hollowed, peeled and the like. In order to prevent the moisture from volatilizing, the scheme is added with the polyvinyl amide, except the polyvinyl amide and the carboxymethyl cellulose, the moisture can be prevented from volatilizing, the carboxymethyl cellulose is in an anion shape after being dissolved, and is combined with cationic polyacrylamide, so that a better adhesive film can be formed, the moisture is prevented from volatilizing, the reaction generated by the combination of the two components is more favorable for locking water, so that the constructor can be left for enough time to polish, the surface can not be hardened, and the polishing is easy.
Since carboxymethyl cellulose contains sodium ions, sodium-based bentonite is preferred for avoiding other adverse reactions.
In the traditional putty, polyacrylamide is in an anionic state, cationic polyacrylamide is adopted in the scheme, but the cationic polyacrylamide presents light blue, and in order to eliminate the unfavorable color, the scheme adopts whitening silicon dioxide. The conventional titanium dioxide is not adopted for whitening, because micropores exist in the titanium dioxide structure, water is not easy to lock.
The carboxymethyl cellulose in the scheme is mainly used for locking water; in order to achieve better dissolution of the entire putty, hydroxypropyl cellulose ether was introduced.
Furthermore, polyvinyl alcohol fine powder is added to increase the fineness.
The invention is realized by the following technical scheme:
the easy-to-polish cement-based interior wall putty comprises the following components in parts by weight: 75-90 parts of double-flying powder; 10-20 parts of white cement; 0.5-1 part of dispersible organic rubber powder; 0.1-0.5 parts of expansive soil; 1-1.5 parts of cationic polyacrylamide; 0.5-1 part of carboxymethyl cellulose; 0.1-0.2 parts of silicon dioxide, 0.3-0.5 parts of hydroxypropyl cellulose ether and 1-5 parts of polyvinyl alcohol fine powder.
The easy-to-polish cement-based interior wall putty is prepared by the following steps:
s1, mixing and stirring the calcium carbonate, the white cement, the dispersible organic rubber powder, the expansive soil, the carboxymethyl cellulose, the silicon dioxide and the polyvinyl alcohol fine powder uniformly in a heating stirring tank;
s2, adding cationic polyacrylamide, wherein the temperature in the tank is lower than or not close to 80 ℃;
s3, and finally adding hydroxypropyl cellulose ether.
Further, in step S1, the dispersible organic rubber powder is added in multiple portions to ensure the rubber viscosity.
Preferably, the hydroxypropyl cellulose ether has a viscosity of 6 to 7 ten thousand.
Preferably, the granularity of the polyvinyl alcohol fine powder is 300-400 meshes.
Preferably, the whiteness of the double-flying powder is 83 degrees, and the particle size is 250 meshes.
Preferably, the white cement whiteness is 90 degrees.
Preferably, the dispersible organic rubber powder is a vinyl acetate-ethylene copolymer.
Preferably, the molecular weight of the cationic polyacrylamide is 1500-2000 ten thousand, and the particle size is 100-110 meshes.
The invention has the following advantages: by adding the cationic polyacrylamide and the carboxymethyl cellulose, the cationic polyacrylamide can form a layer of adhesive film on the surface of the putty, and the carboxymethyl cellulose can well adsorb water to prevent the water from volatilizing rapidly; meanwhile, the glue layer generated by the combination of the two can better form a glue film, prolong the formation of surface hardness and leave enough time for constructors to finish polishing.
Detailed Description
The present invention is further described below, but the scope of the present invention is not limited to the following.
[ example 1 ]
An easily-polished cement-based interior wall putty comprises, by weight, 75-90 parts of double-flying powder; 10-20 parts of white cement; 0.5-1 part of dispersible organic rubber powder; 0.1-0.5 parts of expansive soil; 1-1.5 parts of cationic polyacrylamide; 0.5-1 part of carboxymethyl cellulose; 0.1-0.2 parts of silicon dioxide, 0.3-0.5 parts of hydroxypropyl cellulose ether and 1-5 parts of polyvinyl alcohol fine powder.
Among them, preferred is hydroxypropyl cellulose ether having a viscosity of 6 to 7 ten thousand. The granularity of the polyvinyl alcohol fine powder is 300-400 meshes. The whiteness of the calcium carbonate is 83 degrees, and the granularity is 250 meshes. The white cement whiteness was 90 degrees. The dispersible organic glue powder is vinyl acetate ethylene copolymer. The molecular weight of the cationic polyacrylamide is 1500-2000 ten thousand, and the granularity is 100-110 meshes.
During preparation:
s1, adding deionized water into a heating and stirring tank, sequentially adding the double-flying powder, white cement, expansive soil, carboxymethyl cellulose, silicon dioxide and polyvinyl alcohol fine powder when the tank is in a stirring state, and adding a part of dispersible organic rubber powder into each component to ensure the rubber viscosity;
s2, adding cationic polyacrylamide, and combining with carboxymethyl cellulose to a certain degree, wherein the temperature in the tank is lower than or not close to 80 ℃, and the cationic polyacrylamide is easy to precipitate at a temperature higher than 80 ℃ and is determined by the characteristics of the carboxymethyl cellulose;
s3, finally adding hydroxypropyl cellulose ether, and further dissolving to form an emulsion putty shape.
After the preparation is finished, detection is carried out, the appearance is required to be white emulsion, the solid content is 40 +/-2%, the pH value is 7-9, and the fineness is less than or equal to 40 um. And packaging the qualified product by using a plastic barrel, and placing the packaged product in an environment at the temperature of 2-40 ℃. When not taken out, the sealing is kept to prevent the skin from forming.
[ example 2 ]
75-90 parts of double-flying powder, namely easily-polished cement-based interior wall putty; 10-20 parts of white cement; 0.5-1 part of dispersible organic rubber powder; 0.1-0.5 parts of expansive soil; 1-1.5 parts of cationic polyacrylamide; 0.5-1 part of carboxymethyl cellulose; 0.1-0.2 parts of silicon dioxide, 0.3-0.5 parts of hydroxypropyl cellulose ether and 1-5 parts of polyvinyl alcohol fine powder.
Among them, preferred is hydroxypropyl cellulose ether having a viscosity of 6 to 7 ten thousand. The granularity of the polyvinyl alcohol fine powder is 300-400 meshes. The whiteness of the calcium carbonate is 83 degrees, and the granularity is 250 meshes. The white cement whiteness was 90 degrees. The dispersible organic glue powder is vinyl acetate ethylene copolymer. The molecular weight of the cationic polyacrylamide is 1500-2000 ten thousand, and the granularity is 100-110 meshes.
The preparation, product requirements and storage were the same as in example 1.
[ example 3 ]
An easy-to-polish cement-based interior wall putty comprises the following components in parts by weight: 75-90 parts of double-flying powder; 10-20 parts of white cement; 0.5-1 part of dispersible organic rubber powder; 0.1-0.5 parts of expansive soil; 1-1.5 parts of cationic polyacrylamide; 0.5-1 part of carboxymethyl cellulose; 0.1-0.2 parts of silicon dioxide, 0.3-0.5 parts of hydroxypropyl cellulose ether and 1-5 parts of polyvinyl alcohol fine powder.
Among them, preferred is hydroxypropyl cellulose ether having a viscosity of 6 to 7 ten thousand. The granularity of the polyvinyl alcohol fine powder is 300-400 meshes. The whiteness of the calcium carbonate is 83 degrees, and the granularity is 250 meshes. The white cement whiteness was 90 degrees. The dispersible organic glue powder is vinyl acetate ethylene copolymer. The molecular weight of the cationic polyacrylamide is 1500-2000 ten thousand, and the granularity is 100-110 meshes.
The preparation, product requirements and storage were the same as in example 1.
According to JG/T298-plus 2010 putty for building interiors, a sanding test description is described, a test experiment is carried out, common putty powder (namely competitive putty powder), the putty in the scheme, the putty formed by adding cationic polyacrylamide but not adding carboxymethyl cellulose, the putty formed by adding carboxymethyl cellulose but not adding cationic polyacrylamide in the scheme are respectively selected, and #1 to #5 test groups are selected, the test experiment is carried out (a national standard detection method is refined, such as the test method with application number 201811319066.1 applied by the company, and the test experiment is carried out by combining corresponding instruments), the steps are as follows:
A. weighing putty powder for experiments, adding the putty powder into water according to a formula proportion, and uniformly stirring for later use;
B. will be stirredThe weight of the mixed putty scraped on a rectangular metal frame (the length multiplied by the width multiplied by the height of the rectangular metal frame is 15cm multiplied by 1cm multiplied by 2mm) is M0The film formation was completed on the cement board (asbestos-free fiber cement board, length × width of the cement board is 20cm × 5cm) with a wet film thickness of 2 mm;
C. standing and curing for 72H under standard curing conditions (23 +/-2 ℃, 50 +/-5%), and weighing the total weight M of the cured putty layer and the cement board1；
D. 1kg of pressing block with 120-mesh dry grinding paper inlaid on the bottom surface is placed on a building coating scrub-resistant instrument, the putty layer is polished back and forth for 10 times after maintenance, and the total weight M of the putty layer and the cement board after 10 times of polishing is weighed2。
E. Calculating the grinding amount (%) (M)1-M2)/(M1-M0)。
The resulting data are shown in table one.
Table-test experiment data comparison table
As can be seen from the table I, the putty powder does not fall off in the scheme and the common putty powder (competitive product putty powder), and meets the requirements. According to the experimental site construction feedback, when the construction is finished within the polishing amount range of 1-3% after 72H, the scheme is very easy to polish and does not cause powder falling; and the common putty powder (competitive product putty powder) is difficult to polish, the polishing amount is only 0.67 percent, which brings difficulty to construction, seriously affects the polishing efficiency of a greaser and affects the quality of a final wall surface formed after polishing. In addition, the polishing amount of the putty only added with the cationic polyacrylamide and the polishing amount of the putty added with the carboxymethyl cellulose are 3.58% and 3.61%, and the powder falling is very serious during polishing, thereby bringing about hidden troubles to the low adhesive force of a subsequent coating.
The above examples only show some embodiments of the present invention, but should not be construed as limiting the scope of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The easy-to-polish cement-based interior wall putty is characterized in that: the composition comprises the following components in parts by weight:
75-90 parts of double-flying powder;
10-20 parts of white cement;
0.5-1 part of redispersible organic rubber powder;
0.1-0.5 parts of expansive soil;
1-1.5 parts of cationic polyacrylamide;
0.5-1 part of carboxymethyl cellulose;
0.1-0.2 parts of silicon dioxide
0.3-0.5 part of hydroxypropyl cellulose ether
1-5 parts of polyvinyl alcohol;
the viscosity of the hydroxypropyl cellulose ether is 6-7 ten thousand;
the molecular weight of the cationic polyacrylamide is 1500-2000 ten thousand, and the granularity is 100-110 meshes;
the easy-to-polish cement-based interior wall putty is white emulsion in appearance, the solid content is 40 +/-2%, the PH value is 7-9, and the fineness is less than or equal to 40 um.
2. The easy-to-polish cement-based interior wall putty as claimed in claim 1, wherein: also comprises 1-5 parts of polyvinyl alcohol fine powder, wherein the granularity of the polyvinyl alcohol fine powder is 300-400 meshes.
3. The easy-to-polish cement-based interior wall putty as claimed in claim 2, wherein: the whiteness of the double flying powder is 83 degrees, and the granularity is 250 meshes.
4. The easy-to-polish cement-based interior wall putty as claimed in claim 3, wherein: the whiteness of the white cement is 90 degrees.
5. The easy-to-polish cement-based interior wall putty as claimed in claim 4, wherein: the dispersible organic rubber powder is vinyl acetate ethylene copolymer.
6. The easy-to-polish cement-based interior wall putty as claimed in claim 5, wherein: when the inner wall putty is prepared:
s1, mixing and stirring the calcium carbonate, the white cement, the dispersible organic rubber powder, the expansive soil, the carboxymethyl cellulose, the silicon dioxide and the polyvinyl alcohol fine powder uniformly in a heating stirring tank;
s2, adding cationic polyacrylamide, wherein the temperature in the tank is lower than or not close to 80 ℃;
s3, and finally adding hydroxypropyl cellulose ether.
7. The easy-to-polish cement-based interior wall putty as claimed in claim 6, wherein: in step S1, the dispersible organic rubber powder is added in multiple portions to ensure the rubber viscosity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911156024.5A CN110804333B (en) | 2019-11-22 | 2019-11-22 | Cement-based interior wall putty easy to polish |
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| CN110804333B true CN110804333B (en) | 2022-03-08 |
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| CN114316848A (en) * | 2021-12-22 | 2022-04-12 | 重庆兴渝涂料股份有限公司 | Putty glue and preparation method thereof |
| CN115991590A (en) * | 2022-11-19 | 2023-04-21 | 江苏康程新材料科技有限公司 | Preparation method of external wall decorative coating with better adhesion |
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| GB201011087D0 (en) * | 2010-07-01 | 2010-08-18 | Amcrol Ltd | Cleaning material |
| CN103555226A (en) * | 2013-11-12 | 2014-02-05 | 熊静雯 | Gelatine powder and liquid cement for quickly mixing putty or cement |
| CN105566981B (en) * | 2016-03-03 | 2017-12-15 | 临泉县绿梦佳涂料厂 | A kind of inner wall environmentally-friendly sealing compound |
| CN105733336A (en) * | 2016-03-31 | 2016-07-06 | 嘉兴王家涂料有限公司 | Instantly soluble concentrated adhesive powder for interior wall putty |
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