CN113583501A - Moisture-resistant putty and preparation method thereof - Google Patents
Moisture-resistant putty and preparation method thereof Download PDFInfo
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- CN113583501A CN113583501A CN202111049962.2A CN202111049962A CN113583501A CN 113583501 A CN113583501 A CN 113583501A CN 202111049962 A CN202111049962 A CN 202111049962A CN 113583501 A CN113583501 A CN 113583501A
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- 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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Abstract
The invention relates to moisture-resistant putty and a preparation method thereof, wherein the moisture-resistant putty comprises the following putty raw pulp, wherein the putty raw pulp is prepared from the following components in parts by weight:
the film forming temperature of the redispersible latex powder is 0-10 ℃. The invention overcomes the defects of poor early strength, easy occurrence of phenomena of powder falling, polishing delamination and the like of the existing moisture-resistant putty, and has the advantages of good early strength and difficult powder falling by adopting the preferable low-film-forming-temperature redispersible latex powder and the early strength agent and matching with the preferable other components and the dosage proportion thereof in the system.
Description
Technical Field
The invention relates to moisture-resistant putty and a preparation method thereof, which are applied to the field of functional putty production.
Background
The existing moisture-resistant putty belongs to a large circulation product and is put into use nationwide. After entering for november in most regions in China, the temperature difference between the morning and the evening is large, the temperature is more than 10 ℃ in the daytime, and the temperature may be lower than 5 ℃ at night. The existing moisture-resistant putty is easy to fall off powder, polish and delaminate after being applied to a wall due to low environmental temperature and poor early strength.
Therefore, it is a task to provide a moisture-resistant putty with good early strength and less powder falling and a preparation method thereof.
Disclosure of Invention
In order to overcome the defects of poor early strength, easy occurrence of phenomena of powder falling, polishing delamination and the like of the existing moisture-resistant putty, the invention provides the moisture-resistant putty and the preparation method thereof.
The technical scheme of the invention is as follows:
a moisture resistant putty comprising the following putty paste:
the putty raw stock is prepared from the following components in parts by weight:
the redispersible latex powder is redispersible latex powder with a film forming temperature of 0-10 ℃.
The putty primary pulp system of the moisture-resistant putty adopts the preferable low-film-forming-temperature redispersible latex powder and the early strength agent, and is matched with other preferable components and the dosage proportion thereof in the system, so that the putty primary pulp system has the advantages of good early strength and difficulty in powder falling. Firstly, the early strength agent is added into the system, on one hand, the concentration of calcium ions is increased, the calcium increasing effect is achieved, on the other hand, the pH value of a liquid phase is reduced, the precipitation of calcium hydroxide is promoted, the concentration of hydroxyl in the solution on the surface of cement particles is rapidly reduced, the further reaction speed of unhydrated particles is accelerated, and the formation of C-S-H gelation is promoted, so that the strength of cement is improved, the moisture resistance and the low-temperature strength of the putty are effectively enhanced, the putty strength is more uniform, the sanding property is good, and a good base effect is achieved. In addition, the hydration of the cement is carried out from the surface to the inside in a gradually deep manner, the hydration degree of the cement is continuously increased along with the time, hydration products are also continuously increased and filled in capillary pores, so that the porosity of the capillary pores is reduced, the porosity of gel pores is correspondingly increased, and the early strength agent can promote the cement hydration reaction to generate more hydration products to fill the pores of the cement slurry, so that the porosity is reduced, the pore diameter is refined, the pore structure of the cement slurry is improved, the cement slurry is more compact, and the strength of the cement is improved. Secondly, the redispersible latex powder with low film forming temperature is added into the system, so that the problem of insufficient material binding power at low temperature is solved, the strength performance of the moisture-resistant putty at low temperature is improved, the strength of the moisture-resistant putty is more uniform, the sanding property of the moisture-resistant putty is better, and the problem of powder shedding of the putty in part of areas in winter is solved. Thirdly, the moisture-resistant putty system has low cement mixing amount, and the phenomenon of 'glazing' can not occur after the putty is dried in winter. Wherein, the functions of each component in the system are respectively as follows:
the white cement can improve the filling property of the putty and reduce the wet viscosity;
the heavy calcium carbonate can ensure good flatness of the surface of the putty and can ensure that the whole putty is of a firm structure;
cellulose ethers can provide effective thickening effects in putty systems;
the starch ether can realize rapid thickening and certain water retention performance;
the preferable redispersible latex powder with the film forming temperature of 0-10 ℃ can effectively bond main film forming substances and various materials to form a whole, thereby realizing better strength;
the early strength agent can effectively promote the development of the early strength of the concrete; not only has the early strength function, but also has certain water reducing and enhancing functions.
The coarse whiting is 350-mesh coarse whiting of 450 meshes.
The fine and fine coarse whiting with proper mesh size is preferable to ensure good flatness and form a firm structure.
The white cement is 325 white cement.
The preferred white cement provides good adhesion to the inorganic coating.
When in use, the moisture-resistant putty is prepared by mixing putty raw stock and water according to the weight ratio of 1: 0.25-0.35.
The optimized proportion of the putty raw stock to the water can further improve the performance of the moisture-resistant putty.
The preparation method of the putty primary pulp in the preparation method of the moisture-resistant putty mainly comprises the following steps of:
and starting a dispersion machine, adjusting the dispersion rotation speed to 400-600 revolutions per minute, mixing white cement, heavy calcium carbonate, cellulose ether, starch ether, redispersible latex powder and an early strength agent, and stirring and dispersing for 10-20 minutes to obtain the putty primary pulp.
The preparation method of the raw material putty raw stock of the moisture-resistant putty is simple and convenient in steps, convenient to operate and beneficial to popularization.
The preparation method of the moisture-resistant putty further comprises the following steps of: and uniformly mixing the putty raw stock and water according to the weight part ratio of 1:0.25-0.35 to obtain the moisture-resistant putty.
This application moisture resistant putty convenient to use only needs before the construction after simple misce bene according to preferred proportion with putty magma and water, can construct, has promoted the efficiency of construction greatly.
The redispersible latex powder adopts Kening 60M type redispersible latex powder.
Preferably, the overall performance of the moisture-resistant putty can be further improved.
The preparation method of the putty raw stock mainly comprises the following steps of sequentially carrying out:
and starting a dispersion machine, adjusting the dispersion rotation speed to 400-600 revolutions per minute, mixing white cement, heavy calcium carbonate, cellulose ether, starch ether, redispersible latex powder and an early strength agent, and stirring and dispersing for 10-20 minutes to obtain the putty primary pulp.
The preparation method of the moisture-resistant putty further comprises the following steps of: and uniformly mixing the putty raw stock and water according to the weight part ratio of 1:0.25-0.35 to obtain the moisture-resistant putty.
The preparation method of the moisture-resistant putty is simple and convenient in steps, convenient to operate, beneficial to popularization and convenient to use.
Compared with the prior art, the method has the following advantages:
1) the moisture-resistant putty adopts the preferable low-film-forming-temperature redispersible latex powder and the early strength agent, and is matched with other preferable components and the dosage proportion thereof in the system, so that the moisture-resistant putty has the advantages of good early strength and difficult powder falling, and the phenomenon of 'glazing' after the putty is dried in winter can not occur due to the lower cement mixing amount in the system;
2) the preparation method of the raw material putty raw stock of the moisture-resistant putty is simple and convenient in steps, convenient to operate and beneficial to popularization;
3) this application moisture resistant putty convenient to use only needs before the construction after simple misce bene according to preferred proportion with putty magma and water, can construct, has promoted the efficiency of construction greatly.
Drawings
FIG. 1 is the effect diagram of the ordinary N-type water-resistant putty after construction;
FIG. 2 is the effect diagram of the conventional Y-type water-resistant putty after construction;
FIG. 3 is a graph showing the results of the surface strength test of the moisture resistant putty according to example 1 of the present invention;
FIG. 4 is a graph showing the results of the surface strength test of the moisture resistant putty of example 2 of the present invention;
FIG. 5 is a graph showing the results of the surface strength test of the moisture resistant putty of example 3 of the present invention.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the embodiments of the specification.
Example 1
The moisture-resistant putty comprises the following putty raw stock:
the putty raw stock is prepared from the following components in parts by weight:
the redispersible latex powder is redispersible latex powder with a film forming temperature of 4 ℃.
The coarse whiting is 350-mesh coarse whiting of 450 meshes.
The white cement is 325 white cement.
When in use, the moisture-resistant putty is prepared by mixing putty raw stock and water according to the weight part ratio of 1: 0.3.
The redispersible latex powder adopts Kening 60M type redispersible latex powder.
The preparation method of the putty raw stock mainly comprises the following steps of sequentially carrying out:
and starting a dispersion machine, regulating the dispersion rotation speed to 500 rpm, mixing white cement, heavy calcium carbonate, cellulose ether, starch ether, redispersible emulsion powder and an early strength agent, and stirring and dispersing for 18 minutes to obtain the putty raw stock.
The preparation method of the moisture-resistant putty further comprises the following steps of: and uniformly mixing the putty raw stock and water according to the weight part ratio of 1:0.3 to obtain the moisture-resistant putty.
Example 2
The moisture-resistant putty comprises the following putty raw stock:
the putty raw stock is prepared from the following components in parts by weight:
the redispersible latex powder is redispersible latex powder with a film forming temperature of 0 ℃.
The coarse whiting is 350-mesh coarse whiting of 450 meshes.
The white cement is 325 white cement.
When in use, the moisture-resistant putty is prepared by mixing putty raw stock and water according to the weight part ratio of 1: 0.35.
The redispersible latex powder adopts Kening 60M type redispersible latex powder.
The preparation method of the putty raw stock mainly comprises the following steps of sequentially carrying out:
and starting a dispersion machine, regulating the dispersion rotation speed to 500 rpm, mixing white cement, heavy calcium carbonate, cellulose ether, starch ether, redispersible emulsion powder and an early strength agent, and stirring and dispersing for 10 minutes to obtain the putty primary pulp.
The preparation method of the moisture-resistant putty further comprises the following steps of: and uniformly mixing the putty raw stock and water according to the weight part ratio of 1:0.35 to obtain the moisture-resistant putty.
Example 3
The moisture-resistant putty comprises the following putty raw stock:
the putty raw stock is prepared from the following components in parts by weight:
the redispersible latex powder is redispersible latex powder with a film forming temperature of 10 ℃.
The coarse whiting is 350-mesh coarse whiting of 450 meshes.
The white cement is 325 white cement.
When in use, the moisture-resistant putty is prepared by mixing putty raw stock and water according to the weight part ratio of 1: 0.25.
The redispersible latex powder adopts Kening 60M type redispersible latex powder.
The preparation method of the putty raw stock mainly comprises the following steps of sequentially carrying out:
and starting a dispersion machine, regulating the dispersion rotation speed to 600 revolutions per minute, mixing white cement, heavy calcium carbonate, cellulose ether, starch ether, redispersible emulsion powder and an early strength agent, and stirring and dispersing for 20 minutes to obtain the putty primary pulp.
The preparation method of the moisture-resistant putty further comprises the following steps of: and uniformly mixing the putty raw stock and water according to the weight part ratio of 1:0.25 to obtain the moisture-resistant putty.
Raw material information related to each example:
white cement: silver fir 32.5 type
Cellulose ether: acksonobel model M35
Heavy calcium: changxing CC-900350-450 mesh type
Starch ether: national chemical modified starch type
Redispersible latex powder: kening 60M type
Early strength agent: model ESP 3516.
Experimental data:
comparative sample 1: common N-type water-resistant putty: the putty raw stock comprises the following components in parts by weight:
the preparation method of the putty raw stock of the common N-type waterproof putty mainly comprises the following steps of:
and starting a dispersion machine, regulating the dispersion rotation speed to 400 r/m, sequentially adding the materials, stirring, and stirring for 10-20 minutes after all the materials are added to obtain the putty primary pulp.
When in use, the putty raw stock and water are uniformly mixed according to the weight portion ratio of 1:0.3, and the common N-type waterproof putty is obtained.
Comparative sample 2: common Y-type water-resistant putty: the putty raw stock comprises the following components in parts by weight:
the preparation method of the putty raw stock of the common Y-type waterproof putty mainly comprises the following steps of:
and starting a dispersion machine, regulating the dispersion rotation speed to 400 r/m, sequentially adding the materials, stirring, and stirring for 10-20 minutes after all the materials are added to obtain the putty primary pulp.
When in use, the putty raw stock and water are uniformly mixed according to the weight portion ratio of 1:0.3, and the common Y-type waterproof putty is obtained.
The moisture-resistant putty of the scheme is different from the comparative sample 1 in that: the moisture-proof putty system of the scheme has no bentonite, adopts redispersible latex powder with the film forming temperature of 0-10 ℃ instead of common latex powder, also adopts an early strength agent, and the cellulose ether used in the comparison sample 1 is limited to low-viscosity cellulose ether;
the moisture-resistant putty of the scheme is different from the comparative sample 2 in that: the moisture-proof putty system of the scheme does not contain bentonite, adopts redispersible latex powder with the film forming temperature of 0-10 ℃ instead of common latex powder, also adopts early strength agent and starch ether, and limits the cellulose ether used in the comparison sample 2 to low-viscosity cellulose ether.
The detection method comprises the following steps:
bonding strength: coating each sample on the surface of a wall body under the conditions of 3 ℃ and 70% RH humidity, wherein the thickness is 1mm, and detecting according to JG/T298-;
surface strength: and (3) coating each sample on the surface of a wall body under the conditions of 3 ℃ and 70% RH humidity, wherein the thickness is 1mm, and touching the surface of each sample by hands after 2 hours to see whether powder falls off or not.
The detection results are as follows:
table 1 results of performance test of each example
As can be seen from the above table and the figures 1-2, the early bonding strength and the early surface strength of the moisture-resistant putty are superior to those of the comparison sample 1-2, and the moisture-resistant putty meets the standard JG/T298-.
The moisture-resistant putty and the preparation method thereof are not limited to the above embodiments, and any modification or replacement according to the principle of the present invention should be within the protection scope of the present invention.
Claims (7)
1. The moisture-resistant putty is characterized in that: the moisture-resistant putty comprises the following putty raw stock:
the putty raw stock is prepared from the following components in parts by weight:
the redispersible latex powder is redispersible latex powder with a film forming temperature of 0-10 ℃.
2. The moisture resistant putty as set forth in claim 1 wherein: the coarse whiting is 350-mesh coarse whiting of 450 meshes.
3. The moisture resistant putty as set forth in claim 1 wherein: the white cement is 325 white cement.
4. The moisture resistant putty as set forth in claim 1 wherein: when in use, the moisture-resistant putty is prepared by mixing putty raw stock and water according to the weight ratio of 1: 0.25-0.35.
5. The moisture resistant putty as set forth in claim 1 wherein: the redispersible latex powder adopts Kening 60M type redispersible latex powder.
6. The method for preparing moisture-resistant putty as set forth in any one of claims 1 to 5, characterized in that: the preparation method of the putty raw stock mainly comprises the following steps of sequentially carrying out:
and starting a dispersion machine, adjusting the dispersion rotation speed to 400-600 revolutions per minute, mixing white cement, heavy calcium carbonate, cellulose ether, starch ether, redispersible latex powder and an early strength agent, and stirring and dispersing for 10-20 minutes to obtain the putty primary pulp.
7. The method for preparing the moisture-resistant putty as claimed in claim 6, wherein the method comprises the following steps: the preparation method of the moisture-resistant putty further comprises the following steps of: and uniformly mixing the putty raw stock and water according to the weight part ratio of 1:0.25-0.35 to obtain the moisture-resistant putty.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113968707A (en) * | 2021-11-17 | 2022-01-25 | 福建省三棵树新材料有限公司 | Putty with crack repairing function and preparation method thereof |
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| CN103086664A (en) * | 2013-01-08 | 2013-05-08 | 张立功 | Internal wall putty and production process thereof |
| CN103130477A (en) * | 2013-02-22 | 2013-06-05 | 山东圣泉化工股份有限公司 | Low-temperature-resistant early-strength dry powder adhesive and bonding slurry |
| US20130190430A1 (en) * | 2012-01-20 | 2013-07-25 | 3M Innovative Properties Company | Self priming spackling compound |
| CN107603318A (en) * | 2017-09-26 | 2018-01-19 | 东南新材料股份有限公司 | A kind of exterior wall putty and its production method suitable for machine spraying |
| CN108727891A (en) * | 2018-06-21 | 2018-11-02 | 广东高登刷新科技有限责任公司 | Crack repairing putty |
| CN113150598A (en) * | 2021-06-03 | 2021-07-23 | 上海三银涂料科技股份有限公司 | High-tolerance curing putty powder and application |
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2021
- 2021-09-08 CN CN202111049962.2A patent/CN113583501A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130190430A1 (en) * | 2012-01-20 | 2013-07-25 | 3M Innovative Properties Company | Self priming spackling compound |
| CN103086664A (en) * | 2013-01-08 | 2013-05-08 | 张立功 | Internal wall putty and production process thereof |
| CN103130477A (en) * | 2013-02-22 | 2013-06-05 | 山东圣泉化工股份有限公司 | Low-temperature-resistant early-strength dry powder adhesive and bonding slurry |
| CN107603318A (en) * | 2017-09-26 | 2018-01-19 | 东南新材料股份有限公司 | A kind of exterior wall putty and its production method suitable for machine spraying |
| CN108727891A (en) * | 2018-06-21 | 2018-11-02 | 广东高登刷新科技有限责任公司 | Crack repairing putty |
| CN113150598A (en) * | 2021-06-03 | 2021-07-23 | 上海三银涂料科技股份有限公司 | High-tolerance curing putty powder and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113968707A (en) * | 2021-11-17 | 2022-01-25 | 福建省三棵树新材料有限公司 | Putty with crack repairing function and preparation method thereof |
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Application publication date: 20211102 |