CN110922103A - Preparation method of self-cleaning muck polymer - Google Patents

Preparation method of self-cleaning muck polymer Download PDF

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Publication number
CN110922103A
CN110922103A CN201911106669.8A CN201911106669A CN110922103A CN 110922103 A CN110922103 A CN 110922103A CN 201911106669 A CN201911106669 A CN 201911106669A CN 110922103 A CN110922103 A CN 110922103A
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CN
China
Prior art keywords
self
slag
muck
polymer
cleaning
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
Application number
CN201911106669.8A
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Chinese (zh)
Inventor
查晓雄
王凯
刘杨
魏俊
张慧杰
潘志忠
张雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Graduate School Harbin Institute of Technology
Shenzhen Construction Engineering Group Co Ltd
Original Assignee
Shenzhen Graduate School Harbin Institute of Technology
Shenzhen Construction Engineering Group Co Ltd
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Publication date
Application filed by Shenzhen Graduate School Harbin Institute of Technology, Shenzhen Construction Engineering Group Co Ltd filed Critical Shenzhen Graduate School Harbin Institute of Technology
Priority to CN201911106669.8A priority Critical patent/CN110922103A/en
Publication of CN110922103A publication Critical patent/CN110922103A/en
Pending legal-status Critical Current

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    • 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
    • C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/2038—Resistance against physical degradation
    • C04B2111/2061—Materials containing photocatalysts, e.g. TiO2, for avoiding staining by air pollutants or the like
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention provides a preparation method of self-cleaning slag soil polymer, which mainly comprises the steps of mixing slag soil and slag according to a proportion, carrying out primary treatment, mixing with an alkaline activator according to a proportion, adding water for stirring, and then covering TiO2And (3) a nano material film, and finally curing the mixture to form the nano material film for use. The invention has the beneficial effects that: by using TiO2The nano material is used as additive, building residue soil and slag are used as cementing material to prepare self-cleaning residue soil polymer, TiO2The doping of the nano material enables the geopolymer to have a self-cleaning function under the action of natural illumination and rainfall, realizes the self-cleaning function of buildings, can replace common portland cement, is favorable for saving energy, protecting the ecological environment and accords with the strategic target of sustainable development.

Description

Preparation method of self-cleaning muck polymer
Technical Field
The invention relates to a muck polymer, in particular to a preparation method of a self-cleaning muck polymer.
Background
The application of silicate cement concrete in a large amount greatly increases the content of greenhouse gases in the environment, greatly consumes natural resources and aggravates the severity of global climate problems. Meanwhile, the application of concrete in urban high-rise buildings also causes the problem that pollutants such as dust, oil stains and the like on the surface of the concrete are difficult to clean, and the problem of urban air pollution is more prominent.
At present, alkali-activated muck geopolymer is mainly adopted to replace portland cement concrete, but the existing alkali-activated muck geopolymer has the following problems:
1. the existing alkali-activated muck geopolymer has no functions of degrading organic pollutants and purifying atmosphere, and cannot meet the aim of self-cleaning of urban buildings.
2. In the preparation process of the alkali-activated muck geopolymer, a certain target strength can be achieved by high-temperature curing at 60-80 ℃, and meanwhile, the used alkali-activating agent has potential safety hazards in transportation, so that the alkali-activated muck geopolymer is not beneficial to popularization and application of the geopolymer.
3. The development of a large number of construction projects leads to more and more dregs as construction wastes, and the problem of reasonable treatment of the dregs is increasingly highlighted.
Therefore, in order to solve the problems of continuous increase of carbon emission, excessive consumption of natural resources, difficulty in cleaning pollutants on the outer vertical surfaces of urban buildings, overhigh content of atmospheric pollutants and the like, a novel green low-carbon cementing material needs to be found to replace ordinary portland cement.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a preparation method of a self-cleaning muck polymer.
The invention provides a preparation method of a self-cleaning muck polymer, which utilizes TiO2The nano material is used as an additive, and the building residue and the slag are used as cementing materials to prepare the self-cleaning residue soil polymer.
As a further improvement of the invention, the method mainly comprises the steps of mixing the slag soil and the slag according to a proportion, carrying out primary treatment, mixing the slag soil and the slag with the alkaline activator according to a proportion, adding water for stirring, and then covering TiO2And (3) a nano material film, and finally curing the mixture to form the nano material film for use.
As a further improvement of the invention, the alkali-activator is Ca (OH)2，Na2CO3Any one of solid sodium silicate or any combination thereof.
As a further improvement of the invention, by adjusting Ca (OH)2，Na2CO3And the dosage of the solid sodium silicate is used for adjusting the modulus of the alkali-activator.
As a further improvement of the present invention, the concentration of the alkali-activator solution is adjusted by adding water.
The further improvement of the invention is that the slag soil and the slag after drying and grinding treatment are mixed with the aggregate, then the alkali activator is added for mixing and stirring, and finally the TiO is coated on the surface layer by a' film coating method2And (3) nano materials.
As a further improvement of the invention, the curing conditions are at a temperature of 20 ℃.
As a further improvement of the invention, the curing conditions are 95% relative humidity.
As a further improvement of the invention, the mixture is finally formed into a building facade by curing.
The invention has the beneficial effects that: by using TiO2Preparation of self-cleaning slag soil by using nano material as additive and building slag soil and slag as cementing materialPolymers, TiO2The doping of the nano material enables the geopolymer to have a self-cleaning function under the action of natural illumination and rainfall, realizes the self-cleaning function of buildings, can replace common portland cement, is favorable for saving energy, protecting the ecological environment and accords with the strategic target of sustainable development.
Drawings
FIG. 1 is a schematic self-cleaning illustration of the self-cleaning muck polymer of the present invention.
FIG. 2 is a schematic self-cleaning illustration of the self-cleaning muck polymer of the present invention.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in figures 1-2, a method for preparing self-cleaning muck polymer mainly comprises mixing muck and slag according to a certain proportion, drying, grinding, and mixing with alkaline activator (Ca (OH)2，Na2CO3Solid sodium silicate) is mixed according to a certain proportion, then water is added and stirred, and then TiO is covered2And (3) a nano material film, and finally, performing standard maintenance on the mixture to form the nano material film for use.
The specific preparation sequence is as follows: mixing the dried and ground slag, slag and aggregate, adding an alkaline activator, mixing and stirring, and finally coating TiO on the surface layer by a film coating method2And (3) nano materials. The curing conditions were 20 ℃ and 95% relative humidity.
Can be regulated by Ca (OH)2，Na2CO3And the modulus of the alkali-activator is adjusted by the mixing amount of the solid sodium silicate, and the concentration of the alkali-activator solution is adjusted by adding water.
The invention provides a preparation method of a self-cleaning muck polymer, which utilizes TiO2The nano material is used as an additive, and the building residue and the slag are used as cementing materials to prepare the self-cleaning residue soil polymer. TiO 22The doping of the nano material enables the geopolymer to have a self-cleaning function under the action of natural illumination and precipitation, and the self-cleaning function of buildings is realized.
The preparation method of the self-cleaning muck polymer provided by the invention has the following advantages:
1. addition of TiO with photocatalytic function to geopolymers2The nanometer material enables the geopolymer to have the functions of self-cleaning and atmosphere purification under the action of natural illumination and rainfall, is beneficial to saving energy, protecting the ecological environment and meeting the strategic target of sustainable development.
2. The current situations of potential safety hazards and environmental damage caused by stacking of construction wastes such as muck and the like as construction wastes are reduced, energy is saved, the ecological environment is protected, and the strategic target of sustainable development is met.
3. The product of the invention has strong practicability and good working performance, is developed by utilizing the product, and can be applied to actual engineering in a large scale.
The self-cleaning muck polymer provided by the invention has wide application, can be used as a building material in construction engineering, can be used as a building member such as compression bending and the like, including columns, beams, plates and the like in various forms, and can be used as a building facade to realize the self-cleaning function of a building.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (9)

1. A preparation method of a self-cleaning muck polymer is characterized by comprising the following steps: by using TiO2The nano material is used as an additive, and the building residue and the slag are used as cementing materials to prepare the self-cleaning residue soil polymer.
2. The method of preparing a self cleaning muck polymer according to claim 1, wherein: master and slaveMixing slag and slag in proportion, performing primary treatment, mixing with an alkaline activator in proportion, adding water, stirring, and covering with TiO2And (3) a nano material film, and finally curing the mixture to form the nano material film for use.
3. The method of preparing a self cleaning muck polymer according to claim 2, wherein: the alkali activator is Ca (OH)2，Na2CO3Any one of solid sodium silicate or any combination thereof.
4. The method of preparing a self cleaning muck polymer according to claim 3, wherein: by regulating Ca (OH)2，Na2CO3And the dosage of the solid sodium silicate is used for adjusting the modulus of the alkali-activator.
5. The method of preparing a self cleaning muck polymer according to claim 3, wherein: the concentration of the alkali-activator solution is adjusted by adding water.
6. The method of preparing a self cleaning muck polymer according to claim 2, wherein: mixing the dried and ground slag, slag and aggregate, adding an alkaline activator, mixing and stirring, and finally coating TiO on the surface layer by a film coating method2And (3) nano materials.
7. The method of preparing a self cleaning muck polymer according to claim 6, wherein: the curing conditions were at a temperature of 20 ℃.
8. The method of making a self cleaning muck polymer of claim 7, wherein: the curing conditions were 95% relative humidity.
9. The method of preparing a self cleaning muck polymer according to claim 2, wherein: and finally, curing and forming the mixture into the building facade.
CN201911106669.8A 2019-11-13 2019-11-13 Preparation method of self-cleaning muck polymer Pending CN110922103A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Publications (1)

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CN110922103A true CN110922103A (en) 2020-03-27

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266085A (en) * 1991-09-19 1993-11-30 Texaco Inc. Process for disposing of sewage sludge
CN101289334A (en) * 2008-06-17 2008-10-22 中国科学院广州能源研究所 Self-cleaning, heat-insulation and heat-preservation ceramic and method for preparing same
CN101293790A (en) * 2008-06-17 2008-10-29 中国科学院广州能源研究所 Self-cleaning heat insulation ceramic ware and preparation method thereof
CN202152318U (en) * 2011-05-13 2012-02-29 江西斯米克陶瓷有限公司 Ceramic tile containing photo-catalyst layer
CN108129096A (en) * 2017-11-27 2018-06-08 浙江加州国际纳米技术研究院台州分院 For the cement slurry and preparation method of nanometer modified photocatalytic self-cleaning concrete
CN109776031A (en) * 2018-08-28 2019-05-21 查晓雄 A kind of new polymers dry type preparation method
CN110317024A (en) * 2019-07-29 2019-10-11 绍兴华放新材料有限公司 A kind of photocatalysis concrete light soundproof wall and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266085A (en) * 1991-09-19 1993-11-30 Texaco Inc. Process for disposing of sewage sludge
CN101289334A (en) * 2008-06-17 2008-10-22 中国科学院广州能源研究所 Self-cleaning, heat-insulation and heat-preservation ceramic and method for preparing same
CN101293790A (en) * 2008-06-17 2008-10-29 中国科学院广州能源研究所 Self-cleaning heat insulation ceramic ware and preparation method thereof
CN202152318U (en) * 2011-05-13 2012-02-29 江西斯米克陶瓷有限公司 Ceramic tile containing photo-catalyst layer
CN108129096A (en) * 2017-11-27 2018-06-08 浙江加州国际纳米技术研究院台州分院 For the cement slurry and preparation method of nanometer modified photocatalytic self-cleaning concrete
CN109776031A (en) * 2018-08-28 2019-05-21 查晓雄 A kind of new polymers dry type preparation method
CN110317024A (en) * 2019-07-29 2019-10-11 绍兴华放新材料有限公司 A kind of photocatalysis concrete light soundproof wall and preparation method thereof

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Application publication date: 20200327

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