CN115677288B - Putty and preparation method thereof - Google Patents

Putty and preparation method thereof Download PDF

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Publication number
CN115677288B
CN115677288B CN202211268592.6A CN202211268592A CN115677288B CN 115677288 B CN115677288 B CN 115677288B CN 202211268592 A CN202211268592 A CN 202211268592A CN 115677288 B CN115677288 B CN 115677288B
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parts
putty
mixture
sodium
powder
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CN115677288A (en
Inventor
丁选明
方华强
李一夫
王红
蒋春勇
曹光伟
王春艳
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Chongqing University
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Chongqing University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Sealing Material Composition (AREA)
  • Paints Or Removers (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses putty and a preparation method thereof, wherein the putty comprises 50-80 parts of coral mud, 10-20 parts of sodium bentonite, 5-15 parts of white cement, 3-8 parts of desulfurized gypsum, 3-5 parts of redispersible biological rubber powder, 1-6 parts of basalt fiber, 0.5-3 parts of anion powder and 0.5-2 parts of carboxypropyl methyl cellulose ether. The putty provided by the invention has the characteristics of ecological environment protection, no powder falling, no peeling, crack resistance, durability, high adhesive strength and good stability, and has the performances of purifying air, adsorbing and decomposing harmful gas, resisting bacteria, sterilizing, regulating air humidity, reducing peculiar smell, insulating sound and heat, preventing fire and the like.

Description

Putty and preparation method thereof
Technical Field
The invention relates to the technical field of building exterior wall materials, in particular to putty and a preparation method thereof.
Background
In recent years, with the increase of large-scale hydraulic filling island construction projects, the number of modern engineering projects on island reefs is increasing, and the demand for building putty is increasing.
The current putty for buildings on island reefs is preferably waterproof putty, the existing waterproof putty on the market mainly realizes the waterproof performance of the putty by adding some auxiliary agents (such as water-absorbing resin, silicon carbide, carbon powder and the like), but the effect is not obvious, and the waterproof performance of the putty is poor especially in high-temperature and high-humidity environments.
Therefore, there is an urgent need for a putty suitable for island construction.
Disclosure of Invention
In order to solve the problem of poor water resistance of the conventional putty when used for island construction, one of the purposes of the invention is to provide the putty.
The technical scheme for solving the technical problems is as follows:
The putty comprises the following components in parts by weight:
The beneficial effects of the invention are as follows: the putty provided by the invention has the characteristics of ecological environment protection, no powder falling, no peeling, crack resistance, durability, high adhesive strength and good stability, and has the performances of purifying air, adsorbing and decomposing harmful gas, resisting bacteria, sterilizing, regulating air humidity, reducing peculiar smell, insulating sound and heat, preventing fire and the like.
Based on the technical scheme, the invention can also be improved as follows:
Further, the method comprises the following steps in parts by weight:
further, the granularity of the coral mud is 400-800 meshes.
Further, the redispersible biological gum powder comprises white carbon black, gelatin, sodium alginate, guar gum, carrageenan and dispersing agent.
Further, the dispersant includes at least one of sodium polyphosphate, sodium hexametaphosphate, sodium pyrophosphate, and sodium dodecyl sulfate.
Further, the length of basalt fiber is 3-5 mm.
Further, the viscosity of the carboxypropylmethyl cellulose is 50000 to 100000 mPa.s.
Further, the granularity of the white cement is 400-800 meshes.
The second object of the present invention is to provide a method for preparing the putty in one of the objects, comprising the steps of:
step 1, fully mixing coral mud, sodium bentonite and white cement to obtain a mixture I;
step 2, adding the negative ion powder and basalt fiber into the mixture I, and fully mixing to obtain a mixture II;
step 3, fully mixing the rest part with the mixture II to obtain a mixture III;
and 4, fully mixing the mixture III with water to obtain the putty.
Further, the mass ratio of the mixture III to water is 2 (0.8-1.2).
The invention has the following beneficial effects:
1. The putty provided by the invention has the characteristics of ecological environment protection, no powder falling, no peeling, crack resistance, durability, high adhesive strength and good stability, and has the performances of purifying air, adsorbing and decomposing harmful gas, resisting bacteria, sterilizing, regulating air humidity, reducing peculiar smell, insulating sound and heat, preventing fire and the like.
2. In the present invention, the hydration of white cement proceeds from the surface to the inside gradually, and as the degree of hydration of cement increases, the hydration product also increases and fills the capillary pores, the porosity of the capillary pores decreases, and the porosity of the gel increases correspondingly. In the invention, the white cement and the desulfurized gypsum can form needle-shaped ettringite with expansibility, and the formed ettringite can fill the pores generated in the hydration process of the white cement, so that the strength of the putty after film formation is enhanced; in addition, in the process of hydration of white cement, one end of part of basalt fiber extends into the pores, and ettringite formed by white cement and gypsum can fix the basalt fiber extending into the pores when the pores are filled, so that the crack resistance of the putty is improved; in addition, the basalt fiber, the white cement and the needle ettringite formed by the desulfurized gypsum can form a three-dimensional network structure, and the strength and the crack resistance of the putty can be further enhanced.
In addition, the carboxypropyl methyl cellulose ether can also form and protect cement gel formed after hydration of white cement, which is beneficial to cementing all components in the putty together by the white cement and improves the strength of the putty after film formation to a certain extent.
3. The coral mud in the invention has the functions of adsorbing and adjusting air humidity; sodium bentonite has swelling property, cohesiveness and the like, and the carboxypropyl methyl cellulose ether has water retention property. In the invention, the coral mud ensures the water content of the putty to ensure that the bentonite has better viscosity by adjusting the humidity in the air; in addition, the water retention performance of the carboxypropyl methyl cellulose ether can further ensure the content of water in the putty, and reduce the influence of external environment on the adhesiveness of the putty; therefore, the putty provided by the invention has good water resistance.
4. The negative oxygen ions generated in the negative ion powder have higher activity and strong oxidation-reduction effect, and can destroy the activity of cell membranes or cytoplasmatic active enzymes of bacteria, thereby achieving the aim of resisting bacteria and killing bacteria; the coral mud has a porous structure, so that the humidity in the air can be adjusted, the ecological environment of bacteria is damaged, and the growth of the bacteria is inhibited. Therefore, in the invention, the negative ion powder and the coral mud respectively destroy bacteria from the inside and the outside, thereby purifying indoor air and eliminating indoor peculiar smell.
Detailed Description
A putty and a method for preparing the same according to the present application will be described below with reference to examples.
This application may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein, but rather should be construed in order that the application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.
An embodiment of the first aspect of the present invention provides a putty, comprising, in parts by weight:
The putty in the example has the characteristics of ecological environment protection, no powder falling, no peeling, crack resistance, durability, high adhesive strength and good stability, and also has the performances of purifying air, adsorbing and decomposing harmful gases, resisting bacteria, sterilizing, regulating air humidity, reducing peculiar smell, insulating sound and heat, preventing fire and the like.
The main component of the coral mud in the example is calcium carbonate, which is a porous medium with multiple functions of good incombustibility, adsorptivity, decomposition of harmful gases, air humidity regulation, odor reduction, sound insulation, heat insulation and the like. The coral mud in this example mainly has two sources, one is fine coral soil formed in the process of hydraulic filling of island reefs, and the other is coral soil with a target particle size obtained by grinding coral sand by a ball mill. In the embodiment, fine coral soil formed in the island blowing and filling process is preferably selected as coral mud, so that on one hand, ocean resources can be effectively utilized, waste is turned into wealth, and the aim of protecting the environment is fulfilled; on the other hand, the materials are locally obtained, the cost is saved, and considerable economic benefit can be obtained for deep processing and utilization of the materials.
The sodium bentonite in this example is a montmorillonite-based hydrous clay mineral having swelling, binding, adsorbing, catalytic, thixotropic, suspending and packing properties.
The white cement in this example can be bonded to other raw materials, and can promote film formation to some extent. In this example, white cement having a whiteness of 90 degrees is preferable; in addition, the white cement in this example is at least one of Portland cement, portland cement, fly ash Portland cement, composite Portland cement and pozzolanic Portland cement, preferably cement numbered 32.5 or 42.5.
The basalt fiber in the example is a novel inorganic environment-friendly high-performance fiber material, which consists of oxides such as silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, ferric oxide, titanium dioxide and the like, and has various excellent performances such as high strength, corrosion resistance, high temperature resistance, wear resistance, tensile resistance and the like.
The viscosity of the carboxypropylmethyl cellulose ether in this example is 50000 to 100000 mPa.s, preferably the viscosity of the carboxypropylmethyl cellulose ether is 50000 to 60000 mPa.s; it has the characteristics of good thickening, suspending, dispersing, emulsifying, binding, film forming, moisture protection, protective colloid provision and the like.
Negative ions in the negative ion powder in the example show a Z shape when moving in the air; the air purifier conveys negative charges to bacteria, dust, smoke particles, water drops and other particles, and the charges are combined with the particles to be aggregated into balls to sink, so that the aim of purifying air is fulfilled; in addition, the released air anions can effectively eliminate indoor peculiar smell and various harmful gases. In addition, the negative oxygen ions generated in the negative ion powder have higher activity and strong oxidation-reduction effect, and can destroy the activity of cell membranes or cytoplasmatic active enzymes of bacteria, thereby achieving the aim of resisting bacteria and killing bacteria. In this example, a negative ion powder having a whiteness of 92 is preferable.
In some embodiments, preferably, the putty comprises, in parts by weight:
additionally, in some embodiments, the coral mud particle size is 400-800 mesh.
Additionally, in some embodiments, the redispersible biocolloid powder includes white carbon black, gelatin, sodium alginate, guar gum, carrageenan, and a dispersant; preferably, the redispersible biological gum powder in the embodiment comprises 1 to 3 parts by weight of white carbon black, 1 to 3 parts by weight of gelatin, 0.5 to 1.2 parts by weight of sodium alginate, 0.8 to 2.1 parts by weight of guar gum, 0.7 to 1.6 parts by weight of carrageenan and 1 to 2 parts by weight of dispersing agent; in addition, the redispersible biological rubber powder does not influence the adsorption characteristic of coral mud after the putty is formed into a film; the dispersant in this example includes at least one of sodium polyphosphate, sodium hexametaphosphate, sodium pyrophosphate, and sodium dodecyl sulfate.
Additionally, in some embodiments, basalt fibers have a length of 3 to 5mm. In the example, the basalt fiber is easy to agglomerate in the preparation process due to the too long length, which is unfavorable for the uniform distribution in the putty, and the cracking resistance cannot be generated due to the too short length.
In addition, in some embodiments, the white cement has a particle size of 400 to 800 mesh.
An embodiment of the second aspect of the present invention provides a method for preparing the putty according to the embodiment of the first aspect, comprising the steps of:
step 1, fully mixing coral mud, sodium bentonite and white cement to obtain a mixture I;
step 2, adding the negative ion powder and basalt fiber into the mixture I, and fully mixing to obtain a mixture II;
step 3, fully mixing the rest part with the mixture II to obtain a mixture III;
and 4, fully mixing the mixture III with water to obtain the putty.
In this example, the mixing times in step 1, step 2 and step 3 were 3min, 5min and 5min, respectively.
In addition, in some embodiments, the mass of mixture III and water is 2 (0.8-1.2).
In addition, during actual operation, the putty is subjected to twice scraping construction, and after the wall body is completely dried in the first scraping operation, the second scraping operation is performed, wherein the thickness of each scraping operation is not more than 1.5mm.
Examples
Example 1
The putty comprises the following components in parts by weight:
wherein the granularity of the coral mud is 600 meshes;
the white cement is Portland cement with the grade of 42.5, and the granularity of the white cement is 500 meshes;
The redispersible bio-gelatine powder comprises: 1.5 parts of white carbon black, 2.0 parts of gelatin, 0.8 part of sodium alginate, 1.4 parts of guar gum, 0.9 part of carrageenan and 1.5 parts of sodium hexametaphosphate;
the length of basalt fiber is 4mm;
the viscosity of the carboxypropylmethyl cellulose ether was 60000 mPa.s.
The preparation method of the putty in the example specifically comprises the following steps:
Step 1, fully mixing coral mud, sodium bentonite and white cement for 3min to obtain a mixture I;
Step 2, adding the negative ion powder and basalt fiber into the mixture I, and fully mixing for 5min to obtain a mixture II;
step 3, fully mixing the rest part with the mixture II for 5min to obtain a mixture III;
Step 4, fully mixing the mixture III with water to obtain putty; wherein the mass ratio of the mixture III to the water is 2:1.2.
Example 2
The putty in this example and the method of preparing the same as in example 1, except that the putty comprises, in parts by weight:
Example 3
The putty in this example and the method of preparing the same as in example 1, except that the putty comprises, in parts by weight:
Example 4
The putty in this example and the method of preparing the same as in example 1, except that the putty comprises, in parts by weight:
example 5
The putty in this example and the method of preparing the same as in example 1, except that the putty comprises, in parts by weight:
example 6
The putty in this example and the method of preparing the same as in example 1, except that the putty comprises, in parts by weight:
Example 7
The putty in this example and the method of preparing the same as in example 1, except that the putty comprises, in parts by weight:
Comparative example 1
The putty in this example and the method of making the same as in example 4, except that the putty comprises, in parts by weight:
Comparative example 2
The putty in this example and the method of making the same as in example 4, except that the putty comprises, in parts by weight:
Test analysis:
the putty in the above examples and comparative examples was tested according to the standard JG/T157-2009 putty for building exterior walls, and the test results are shown in table 1.
TABLE 1 test results
As can be seen from Table 1, the putty provided by the invention has the characteristics of good water resistance and salt resistance, and also has the characteristics of high bonding strength and good crack resistance, and is relatively suitable for island construction materials.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (7)

1. The putty is characterized by comprising the following components in parts by weight:
50-80 parts of coral mud
10-20 Parts of sodium bentonite
5-15 Parts of white cement
3-8 Parts of desulfurized gypsum
3-5 Parts of redispersible biological rubber powder
1-6 Parts of basalt fiber
0.5-3 Parts of negative ion powder
0.5-2 Parts of carboxypropyl methyl cellulose ether;
the viscosity of the carboxypropyl methyl cellulose is 50000-100000 mPa.s;
The granularity of the white cement is 400-800 meshes;
the redispersible biological gel powder comprises white carbon black, gelatin, sodium alginate, guar gum, carrageenan and a dispersing agent.
2. The putty as set forth in claim 1, comprising the following components in parts by weight:
68 parts of coral mud
Sodium bentonite 16 parts
11 Parts of white cement
Desulfurized gypsum 6 parts
4 Parts of redispersible biological gel powder
Basalt fiber 4 parts
Anion powder 2 parts
1 Part of carboxypropyl methyl cellulose ether.
3. The putty as set forth in claim 1 or 2, wherein said coral mud has a particle size of 400-800 mesh.
4. The putty as set forth in claim 1 wherein said dispersant comprises at least one of sodium polyphosphate, sodium hexametaphosphate, sodium pyrophosphate and sodium dodecyl sulfate.
5. The putty according to claim 1 or 2, characterized in that the basalt fiber length is 3-5 mm.
6. The method for preparing the putty as set forth in any one of claims 1 to 5, comprising the steps of:
step 1, fully mixing coral mud, sodium bentonite and white cement to obtain a mixture I;
step 2, adding the negative ion powder and basalt fiber into the mixture I, and fully mixing to obtain a mixture II;
step 3, fully mixing the rest part with the mixture II to obtain a mixture III;
and 4, fully mixing the mixture III with water to obtain the putty.
7. The preparation method according to claim 6, wherein the mass ratio of the mixture III to water is 2 (0.8-1.2).
CN202211268592.6A 2022-10-17 2022-10-17 Putty and preparation method thereof Active CN115677288B (en)

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CN115677288B true CN115677288B (en) 2024-04-30

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007161504A (en) * 2005-12-09 2007-06-28 Okikon:Kk Wall plastering material and its manufacturing method
CN103351687A (en) * 2013-06-21 2013-10-16 天长市开林化工有限公司 Anti-stripping exterior wall putty powder
CN105315727A (en) * 2015-11-23 2016-02-10 大美泰康（天津）生态科技有限公司 Ecological type multi-functional inorganic dry powder paint capable of releasing negative oxygen ions
CN105925049A (en) * 2016-06-20 2016-09-07 杭州唯曦科技有限公司 Ecological environment-friendly putty paste
CN106118202A (en) * 2016-08-03 2016-11-16 吉林建筑大学 Air cleaning putty and preparation and application thereof
CN106519772A (en) * 2016-12-22 2017-03-22 天津雨茅科技有限公司 Inner wall putty used in architectural decoration engineering
CN107840628A (en) * 2017-10-27 2018-03-27 佟朝富 Coral powder ecological functions interior trim wall material
CN108467619A (en) * 2018-05-24 2018-08-31 合肥语林装饰工程有限公司 A kind of water-fast putty powder for exterior wall and preparation method thereof
CN115181376A (en) * 2022-07-11 2022-10-14 重庆大学 Coral island reef building decoration prefabricated plate and preparation method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007161504A (en) * 2005-12-09 2007-06-28 Okikon:Kk Wall plastering material and its manufacturing method
CN103351687A (en) * 2013-06-21 2013-10-16 天长市开林化工有限公司 Anti-stripping exterior wall putty powder
CN105315727A (en) * 2015-11-23 2016-02-10 大美泰康（天津）生态科技有限公司 Ecological type multi-functional inorganic dry powder paint capable of releasing negative oxygen ions
CN105925049A (en) * 2016-06-20 2016-09-07 杭州唯曦科技有限公司 Ecological environment-friendly putty paste
CN106118202A (en) * 2016-08-03 2016-11-16 吉林建筑大学 Air cleaning putty and preparation and application thereof
CN106519772A (en) * 2016-12-22 2017-03-22 天津雨茅科技有限公司 Inner wall putty used in architectural decoration engineering
CN107840628A (en) * 2017-10-27 2018-03-27 佟朝富 Coral powder ecological functions interior trim wall material
CN108467619A (en) * 2018-05-24 2018-08-31 合肥语林装饰工程有限公司 A kind of water-fast putty powder for exterior wall and preparation method thereof
CN115181376A (en) * 2022-07-11 2022-10-14 重庆大学 Coral island reef building decoration prefabricated plate and preparation method thereof

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