CN113896479B - Preparation method of negative ion functional mortar - Google Patents
Preparation method of negative ion functional mortar Download PDFInfo
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- CN113896479B CN113896479B CN202111286143.XA CN202111286143A CN113896479B CN 113896479 B CN113896479 B CN 113896479B CN 202111286143 A CN202111286143 A CN 202111286143A CN 113896479 B CN113896479 B CN 113896479B
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
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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
- 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
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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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- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention relates to the technical field of mortar, and provides a preparation method of negative ion functional mortar, which comprises the following steps: the method comprises the following steps: the nano tourmaline powder is sent into the bentonite dispersing agent according to the weight ratio of 1:5, low-speed stirring is carried out firstly, the stirring speed is 100-500r/min, the stirring time is 20-30min, after the stirring is finished, modified montmorillonite powder accounting for 20-30% of the total amount of the bentonite dispersing agent and activated carbon accounting for 15% of the total amount of the bentonite dispersing agent are added, and finally polypropylene short fibers accounting for 10% of the total amount of the bentonite dispersing agent and dilute sulfuric acid accounting for 8% of the total amount of the bentonite dispersing agent are added for full stirring. The wollastonite is subjected to micro-treatment by ferric chloride and aluminum chloride, so that the surface of the wollastonite is subjected to micro-pore treatment, the modified wollastonite is inserted into a bentonite sheet layer, and the anion powder is guided through the micro-pores of the wollastonite, so that anions are orderly released, and the anion generation efficiency is improved.
Description
Technical Field
The invention relates to the technical field of mortar, in particular to a preparation method of negative ion functional mortar.
Background
Mortar is used as a traditional building binding material and widely used for building construction and plastering and whitewashing construction. The comprehensive performance index is good and bad, and the influence on the final building quality is huge; with the improvement of living standard and the enhancement of health and environmental protection consciousness of people, higher requirements are put forward on the selection and use of materials for home decoration. How to meet the use requirements of people on indoor decoration materials of increasingly competitive furniture becomes a priority for various manufacturers. Negative oxygen ions are widely present in nature in places with high content, such as forests, seasides, waterfall areas, and the like. Although colorless and tasteless, the function is remarkable, so that the vitamin is changed into 'air vitamin' by the medical field. Negative oxygen ions can enter human bodies through blood and a nervous system and affect the physiological activities of the human bodies. For example, when negative oxygen ions enter the brain, the functions of the cerebral cortex can be adjusted to play the roles of improving the sleep quality and reducing the blood pressure; when the negative oxygen ions enter the respiratory tract of a human body, the smooth muscle of the bronchus can be relaxed, the function of a heart-lung system is improved, and the working efficiency is improved.
The existing mortar is mostly matched with tourmaline in a conventional way, and the mortar is solidified and molded, so that the negative ion powder is solidified, the release amount of negative ions is influenced, and the use efficiency of the mortar is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a preparation method of negative ion functional mortar.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a preparation method of negative ion functional mortar, which comprises the following steps:
the method comprises the following steps: the method comprises the following steps of (1) respectively feeding nano tourmaline powder and travertine powder into a bentonite dispersing agent according to a weight ratio of 1:5, stirring at a low speed of 500r/min at a stirring speed of 100 and 20-30min, finishing stirring, then adding modified montmorillonite powder accounting for 20-30% of the total amount of the bentonite dispersing agent and activated carbon accounting for 15% of the total amount of the bentonite dispersing agent, and finally adding polypropylene short fibers accounting for 10% of the total amount of the bentonite dispersing agent and dilute sulfuric acid accounting for 8% of the total amount of the bentonite dispersing agent for full stirring;
step two: respectively adding medical stone powder and guiyang stone powder accounting for 15% of the total amount of the bentonite dispersant into the mixture obtained in the step one, then sending the mixture into a magnetic stirrer, reacting for 10-20h at the temperature of 80-90 ℃, wherein the reaction speed is 500-;
step three: weighing 10-20 parts of anion modified material, 70-100 parts of portland cement, 30-40 parts of quartz sand, 5-10 parts of modified needle-like wollastonite, 1-3 parts of cellulose ether, 100-120 parts of deionized water, 6-9 parts of defoaming agent, 8-15 parts of dispersing agent and 2-4 parts of film-forming assistant;
step four: sequentially adding the raw materials in the step three into a stirrer for stirring treatment, wherein the stirring speed is 500-;
step five: and (3) feeding the premix into a proton irradiation box for irradiation with the irradiation power of 100-500W and the irradiation time of 20-30min, and finally performing curing treatment to finish the curing.
Preferably, the first and second liquid crystal materials are,
s1: the bentonite is sent into a reaction furnace with the temperature of 500-plus-one and the temperature of 1000 ℃ for reaction treatment, the reaction time is 30-50min, the reaction is finished, then the temperature is reduced to 200-plus-one and the temperature is kept for 10-20min, then the bentonite is sent into a layer expanding agent for ultrasonic dispersion, the ultrasonic power is 200-plus-one and the ultrasonic time is 10-20min, and the layer expanding agent is prepared by mixing sodium alginate, hydrochloric acid and deionized water according to the weight ratio of 3:1: 2;
s2: then washing and drying, then grinding by a grinder, wherein the grinding speed is 1000-1500r/min, the grinding time is 20-30min, and after grinding is finished, filtering treatment is carried out;
s3: then the bentonite in the S2 is sent into 3 times of aluminum chloride solution for high-speed stirring with the stirring speed of 1000-1500r/min and the stirring time of 20-30min, thus obtaining the bentonite dispersant.
Preferably, the montmorillonite is firstly sent into a sodium citrate solution for ultrasonic dispersion for 10-50min, the ultrasonic power is 100-500W, the ultrasonic treatment is finished, then the montmorillonite is added into an ionic liquid for ionization activity treatment, the ionization is finished, and then the montmorillonite is washed and dried to obtain the modified montmorillonite powder.
Preferably, sodium chloride is added into the ionized water according to the weight ratio of 1:5, then 4-dimethylaminobutylamine accounting for 10-20% of the total amount of the sodium chloride is added, then nano-silica accounting for 40-50% of the total amount of the sodium chloride is added, the stirring is continued at the rotation speed of 100-.
Preferably, the specific conditions of the ionization activity treatment are as follows: the ionization temperature is 50-60 ℃, the voltage is 200-220V, the current is 5-7A, and the treatment time is 10-30 min.
Preferably, the ionization temperature is 55 ℃, the voltage is 210V, the current is 6A, and the treatment time is 20 min.
Preferably, the modification method of the modified acicular wollastonite comprises the following steps: sending wollastonite into a grinding machine for grinding at the grinding speed of 1000-1500r/min for 20-30min, then carrying out plasma treatment, then sending the wollastonite into iron chloride and aluminum chloride with the mass fraction of 20-30% for low-speed stirring at the stirring speed of 100-200r/min for 20-30min at the stirring temperature of 65-75 ℃, and obtaining the modified needle-like wollastonite after the stirring is finished.
Preferably, the power of the plasma treatment is 100-500W, and the treatment time is 20-30 min.
Preferably, the power of the plasma treatment is 300W, and the treatment time is 25 min.
Preferably, the curing temperature is 35-45 ℃, and the curing time is 10-20 h.
Compared with the prior art, the invention has the following beneficial effects:
the negative ion functional mortar is prepared by stirring and dispersing nano tourmaline powder in a bentonite dispersing agent, wherein the bentonite dispersing agent adopts bentonite for high-temperature treatment in a reaction furnace to improve the activity capability of the bentonite, ultrasonic dispersion is carried out through a layer expanding agent to further expand the layers of the bentonite and improve the layer spacing, grinding treatment is carried out to further refine the layers so as to improve the layer-to-layer spacing, the addition of dilute sulfuric acid enables the bentonite to be activated, aluminum chloride solution is added for treatment, the bentonite can be further activated and the working capability of the bentonite is improved, the nano tourmaline powder has poor load capacity in the bentonite dispersing agent, modified montmorillonite powder and active carbon are further introduced, the montmorillonite powder is subjected to ionization activity treatment to enhance the activity and the adsorption capability, the load of the montmorillonite powder is supported, the load adsorption capability of negative ions in the bentonite is improved, and the matching use of the active carbon and the montmorillonite powder is further improved The load adsorption capacity of negative ions in the bentonite is improved; negative ion powder is orderly led into a mortar product through bentonite, so that the negative ion powder is prevented from being solidified by cement and affecting the release capacity, the negative ion powder is loaded in a bentonite sheet layer and is regularly led into the cement, meanwhile, the wollastonite is treated through the matching of modified wollastonite, the penetrating capacity of a needle-shaped structure of the wollastonite is enhanced, gaps of the cement are filled, the compactness is enhanced, the wollastonite is subjected to micro treatment through ferric chloride and aluminum chloride, the surface of the wollastonite is subjected to micro-pore treatment, the modified wollastonite is inserted into the bentonite sheet layer, and the negative ion powder is guided through micro-pores of the wollastonite, so that negative ions are orderly released, and the generation efficiency of the negative ions is improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, 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 preparation method of the negative ion functional mortar of the embodiment comprises the following steps:
the method comprises the following steps: the method comprises the following steps of (1) respectively feeding nano tourmaline powder and travertine powder into a bentonite dispersing agent according to a weight ratio of 1:5, stirring at a low speed of 100r/min for 20min, adding modified montmorillonite powder accounting for 20% of the total amount of the bentonite dispersing agent and activated carbon accounting for 15% of the total amount of the bentonite dispersing agent, and finally adding polypropylene short fibers accounting for 10% of the total amount of the bentonite dispersing agent and dilute sulfuric acid accounting for 8% of the total amount of the bentonite dispersing agent to fully stir;
step two: respectively adding medical stone powder and guiyang stone powder accounting for 15% of the total amount of the bentonite dispersant into the mixture obtained in the first step, then sending the mixture into a magnetic stirrer, reacting for 10 hours at the temperature of 80 ℃, wherein the reaction speed is 500r/min, after the reaction is finished, performing suction filtration and drying to obtain a negative ion modified material;
step three: weighing 10 parts of anion modified material, 70 parts of portland cement, 30 parts of quartz sand, 5 parts of modified needle-like wollastonite, 1 part of cellulose ether, 100 parts of deionized water, 6 parts of defoaming agent, 8 parts of dispersing agent and 2 parts of film-forming assistant, wherein: the film-forming auxiliary agent is a mixed solution of propylene glycol butyl ether and propylene glycol methyl ether acetate;
step four: sequentially adding the raw materials in the step three into a stirrer for stirring treatment, wherein the stirring speed is 100r/min, the stirring time is 20min, and after the stirring is finished, increasing the stirring speed to 1000r/min, and stirring for 10min to obtain a premix;
step five: and (3) feeding the premix into a proton irradiation box for irradiation with the irradiation power of 100W and the irradiation time of 20min, and finally performing curing treatment to finish curing.
In the first step of this embodiment, the preparation method of the bentonite dispersant comprises:
s1: feeding bentonite into a 500 ℃ reaction furnace for reaction treatment, wherein the reaction time is 30min, after the reaction is finished, cooling to 200 ℃, preserving heat for 10min, and then feeding the bentonite into a layer expanding agent for ultrasonic dispersion, wherein the ultrasonic power is 200W, and the ultrasonic time is 10 min;
s2: then washing and drying, then grinding by a grinder, wherein the grinding speed is 1000r/min, the grinding time is 20min, and after grinding is finished, filtering;
s3: and then the bentonite in the S2 is sent into aluminum chloride solution with the weight 3 times that of the bentonite, and the bentonite is stirred at high speed, the stirring speed is 1000r/min, and the stirring time is 20min, so that the bentonite dispersing agent is obtained.
The modification method of the modified montmorillonite powder in this embodiment is as follows: the montmorillonite is firstly sent into a sodium citrate solution for ultrasonic dispersion for 10min, the ultrasonic power is 100W, the ultrasonic treatment is finished, then the montmorillonite is added into an ionic liquid for ionization activity treatment, the ionization is finished, and then the montmorillonite is washed and dried to obtain the modified montmorillonite powder.
The preparation method of the ionic liquid in the embodiment comprises the following steps: adding sodium chloride into ionized water according to the weight ratio of 1:5, then adding 4-dimethylaminobutylamine accounting for 10% of the total amount of the sodium chloride, then adding nano-silicon dioxide accounting for 40% of the total amount of the sodium chloride, continuing stirring at the rotating speed of 100r/min for 30min, and obtaining the ionic liquid after the stirring.
Specific conditions of the ionization activity treatment of this example were: the ionization temperature is 50 deg.C, voltage is 200V, current is 5A, and the treatment time is 10 min.
The modification method of the modified needle-like wollastonite in this example is as follows: and (2) feeding wollastonite into a grinding machine for grinding at the grinding speed of 1000r/min for 20min, then carrying out plasma treatment, feeding the wollastonite into iron chloride and aluminum chloride with the mass fraction of 20%, stirring at the stirring speed of 100r/min for 20min at the stirring temperature of 65 ℃, and finishing stirring to obtain the modified needle-like wollastonite.
The plasma treatment power of this example was 100W, and the treatment time was 20 min.
The curing temperature in this example was 35 ℃ and the curing time was 10 hours.
Example 2.
The preparation method of the anion functional mortar of the embodiment comprises the following steps:
the method comprises the following steps: the method comprises the following steps of (1) respectively feeding nano tourmaline powder and travertine powder into a bentonite dispersing agent according to a weight ratio of 1:5, stirring at a low speed of 500r/min for 30min, adding modified montmorillonite powder accounting for 30% of the total amount of the bentonite dispersing agent and activated carbon accounting for 15% of the total amount of the bentonite dispersing agent, and finally adding polypropylene short fibers accounting for 10% of the total amount of the bentonite dispersing agent and dilute sulfuric acid accounting for 8% of the total amount of the bentonite dispersing agent to fully stir;
step two: respectively adding medical stone powder and guiyang stone powder accounting for 15% of the total amount of the bentonite dispersant into the mixture obtained in the first step, then sending the mixture into a magnetic stirrer, reacting for 20 hours at the temperature of 90 ℃, wherein the reaction speed is 1000r/min, after the reaction is finished, performing suction filtration and drying to obtain a negative ion modified material;
step three: weighing 20 parts of anion modified material, 100 parts of portland cement, 40 parts of quartz sand, 10 parts of modified needle-like wollastonite, 3 parts of cellulose ether, 120 parts of deionized water, 8 parts of defoaming agent, 11 parts of dispersing agent and 3 parts of film-forming assistant, wherein: the film forming auxiliary agent is a mixed solution of propylene glycol butyl ether and propylene glycol methyl ether acetate;
step four: sequentially adding the raw materials in the step three into a stirrer for stirring treatment, wherein the stirring speed is 500r/min, the stirring time is 30min, after the stirring is finished, increasing the stirring speed to 1500r/min, and stirring for 20min to obtain a premix;
step five: and (3) feeding the premix into a proton irradiation box for irradiation, wherein the irradiation power is 500W, the irradiation time is 30min, and finally, performing maintenance treatment to finish maintenance.
The preparation method of the bentonite dispersant in the first step of this example is as follows:
s1: feeding bentonite into a reaction furnace at 1000 ℃ for reaction treatment, wherein the reaction time is 50min, after the reaction is finished, cooling to 300 ℃, preserving heat for 20min, and then feeding the bentonite into a layer expanding agent for ultrasonic dispersion, wherein the ultrasonic power is 400W, and the ultrasonic time is 20 min;
s2: then washing with water, drying, grinding by a grinder at a rotation speed of 1500r/min for 30min, and filtering after grinding;
s3: and then the bentonite in the S2 is sent into 3 times of aluminum chloride solution by weight, and the bentonite is stirred at high speed, the stirring speed is 1500r/min, and the stirring time is 30min, so that the bentonite dispersing agent is obtained.
The modification method of the modified montmorillonite powder in this example is: the montmorillonite is firstly sent into a sodium citrate solution for ultrasonic dispersion for 50min, the ultrasonic power is 500W, the ultrasonic treatment is finished, then the montmorillonite is added into an ionic liquid for ionization activity treatment, the ionization is finished, and then the montmorillonite is washed and dried to obtain the modified montmorillonite powder.
The preparation method of the ionic liquid in the embodiment comprises the following steps: adding sodium chloride into ionized water according to the weight ratio of 1:5, then adding 4-dimethylaminobutylamine accounting for 20% of the total amount of the sodium chloride, then adding nano-silicon dioxide accounting for 50% of the total amount of the sodium chloride, continuing stirring at the rotating speed of 200r/min for 40min, and obtaining the ionic liquid after the stirring.
Specific conditions of the ionization activity treatment of this example were: the ionization temperature is 60 ℃, the voltage is 220V, the current is 7A, and the treatment time is 30 min.
The modification method of the modified needle-like wollastonite in this example is as follows: and (2) feeding wollastonite into a grinding machine for grinding at the grinding speed of 1500r/min for 30min, then carrying out plasma treatment, then feeding the wollastonite into iron chloride and aluminum chloride with the mass fraction of 30% for low-speed stirring at the stirring speed of 200r/min for 30min at the stirring temperature of 75 ℃, and finishing stirring to obtain the modified needle-like wollastonite.
The plasma treatment power of this example was 500W, and the treatment time was 30 min.
The curing temperature in this example was 45 ℃ and the curing time was 20 hours.
Example 3.
The preparation method of the anion functional mortar of the embodiment comprises the following steps:
the method comprises the following steps: the method comprises the following steps of (1) respectively feeding nano tourmaline powder and travertine powder into a bentonite dispersing agent according to a weight ratio of 1:5, stirring at a low speed of 300r/min for 25min, adding modified montmorillonite powder accounting for 25% of the total amount of the bentonite dispersing agent and activated carbon accounting for 15% of the total amount of the bentonite dispersing agent, and finally adding polypropylene short fibers accounting for 10% of the total amount of the bentonite dispersing agent and dilute sulfuric acid accounting for 8% of the total amount of the bentonite dispersing agent for full stirring;
step two: respectively adding medical stone powder and guiyang stone powder accounting for 15% of the total amount of the bentonite dispersant into the mixture obtained in the first step, then sending the mixture into a magnetic stirrer, reacting for 15 hours at 85 ℃, wherein the reaction speed is 750r/min, after the reaction is finished, performing suction filtration and drying to obtain a negative ion modified material;
step three: weighing 15 parts of anion modified material, 85 parts of portland cement, 35 parts of quartz sand, 7.5 parts of modified needle-like wollastonite, 2 parts of cellulose ether, 110 parts of deionized water, 9 parts of defoaming agent, 15 parts of dispersing agent and 4 parts of film-forming assistant, wherein: the film-forming auxiliary agent is a mixed solution of propylene glycol butyl ether and propylene glycol methyl ether acetate;
step four: sequentially adding the raw materials in the step three into a stirrer for stirring treatment, wherein the stirring speed is 300r/min, the stirring time is 25min, after the stirring is finished, increasing the stirring speed to 1250r/min, and stirring for 15min to obtain a premix;
step five: and (3) feeding the premix into a proton irradiation box for irradiation with the irradiation power of 300W and the irradiation time of 25min, and finally performing curing treatment to finish curing.
In the first step of this embodiment, the preparation method of the bentonite dispersant comprises:
s1: feeding bentonite into a reaction furnace at 750 ℃ for reaction treatment, wherein the reaction time is 40min, after the reaction is finished, cooling to 250 ℃, preserving heat for 15min, and then feeding the bentonite into a layer expanding agent for ultrasonic dispersion, wherein the ultrasonic power is 300W, and the ultrasonic time is 15 min;
s2: then washing and drying, then grinding by a grinder, wherein the grinding speed is 1250r/min, the grinding time is 25min, and after grinding is finished, filtering;
s3: and then the bentonite in the S2 is sent into 3 times of aluminum chloride solution by weight, and the bentonite is stirred at high speed, wherein the stirring speed is 1250r/min, and the stirring time is 25min, so that the bentonite dispersing agent is obtained.
The modification method of the modified montmorillonite powder in this embodiment is as follows: the montmorillonite is firstly sent into a sodium citrate solution for ultrasonic dispersion for 30min, the ultrasonic power is 300W, the ultrasonic treatment is finished, then the montmorillonite is added into an ionic liquid for ionization activity treatment, the ionization is finished, and then the montmorillonite is washed and dried to obtain the modified montmorillonite powder.
The preparation method of the ionic liquid in the embodiment comprises the following steps: adding sodium chloride into ionized water according to the weight ratio of 1:5, then adding 4-dimethylaminobutylamine accounting for 15% of the total amount of the sodium chloride, then adding nano-silicon dioxide accounting for 45% of the total amount of the sodium chloride, continuing stirring at the rotating speed of 150r/min for 35min, and obtaining the ionic liquid after the stirring.
Specific conditions of the ionization activity treatment of this example were: the ionization temperature is 55 deg.C, voltage is 210V, current is 6A, and the treatment time is 20 min.
The modification method of the modified needle-like wollastonite in this example is: and (2) feeding wollastonite into a grinding machine for grinding at the grinding speed of 1250r/min for 25min, then carrying out plasma treatment, then feeding the wollastonite into 25 mass percent of ferric chloride and aluminum chloride for low-speed stirring at the stirring speed of 150r/min for 25min at the stirring temperature of 70 ℃, and finishing stirring to obtain the modified needle-like wollastonite.
The plasma treatment power of this example was 300W and the treatment time was 25 min.
The curing temperature in this example was 40 ℃ and the curing time was 15 hours.
Comparative example 1.
The mortar prepared by the raw material of application No. 201710700668.0.
The method for testing the generation amount of the negative ions comprises the following steps: JC/T1016-2006 test method for negative ion generation amount of material.
The product properties of examples 1-3 and comparative example 1 were tested as follows:
the anion generation amount and the 28d compressive strength of the examples 1 to 3 are significantly higher than those of the comparative example 1.
The influence of a specific modification method of the negative ion modified material on the generation amount of negative ions and the integral influence of the addition of the modified needle-like wollastonite on the product performance are researched.
Modified montmorillonite powder and modified acicular wollastonite are not added into the bentonite dispersing agent, and the generation amount of negative ions and the 28d compressive strength are both obviously reduced.
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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The preparation method of the anion functional mortar is characterized by comprising the following steps:
the method comprises the following steps: the method comprises the following steps of (1) respectively feeding nano tourmaline powder and travertine powder into a bentonite dispersing agent according to a weight ratio of 1:5, stirring at a low speed of 500r/min at a stirring speed of 100 and 20-30min, finishing stirring, then adding modified montmorillonite powder accounting for 20-30% of the total amount of the bentonite dispersing agent and activated carbon accounting for 15% of the total amount of the bentonite dispersing agent, and finally adding polypropylene short fibers accounting for 10% of the total amount of the bentonite dispersing agent and dilute sulfuric acid accounting for 8% of the total amount of the bentonite dispersing agent for full stirring;
step two: respectively adding medical stone powder and guiyang stone powder accounting for 15% of the total amount of the bentonite dispersant into the mixture obtained in the step one, then sending the mixture into a magnetic stirrer, reacting for 10-20h at the temperature of 80-90 ℃, wherein the reaction speed is 500-;
step three: weighing 10-20 parts of anion modified material, 70-100 parts of portland cement, 30-40 parts of quartz sand, 5-10 parts of modified needle-like wollastonite, 1-3 parts of cellulose ether, 100-120 parts of deionized water, 6-9 parts of defoaming agent, 8-15 parts of dispersing agent and 2-4 parts of film-forming assistant;
step four: sequentially adding the raw materials in the step three into a stirrer for stirring treatment, wherein the stirring speed is 500-;
step five: feeding the premix into a proton irradiation box for irradiation with the irradiation power of 100-;
the preparation method of the bentonite dispersant in the first step comprises the following steps:
s1: the bentonite is sent into a reaction furnace with the temperature of 500-plus-one and the temperature of 1000 ℃ for reaction treatment, the reaction time is 30-50min, the reaction is finished, then the temperature is reduced to 200-plus-one and the temperature is kept for 10-20min, then the bentonite is sent into a layer expanding agent for ultrasonic dispersion, the ultrasonic power is 200-plus-one and the ultrasonic time is 10-20min, and the layer expanding agent is prepared by mixing sodium alginate, hydrochloric acid and deionized water according to the weight ratio of 3:1: 2;
s2: then washing and drying, then grinding by a grinder, wherein the grinding speed is 1000-1500r/min, the grinding time is 20-30min, and after grinding is finished, filtering treatment is carried out;
s3: then the bentonite in the S2 is sent into 3 times of aluminum chloride solution by weight, and high-speed stirring is carried out, the stirring speed is 1000-1500r/min, and the stirring time is 20-30min, so as to obtain the bentonite dispersant;
the modification method of the modified montmorillonite powder comprises the following steps: the method comprises the steps of firstly, feeding montmorillonite into a sodium citrate solution, carrying out ultrasonic dispersion for 10-50min at the ultrasonic power of 100-500W, finishing the ultrasonic treatment, then adding into an ionic liquid for carrying out ionization activity treatment, finishing the ionization, then washing with water, and drying to obtain modified montmorillonite powder;
the preparation method of the ionic liquid comprises the following steps: adding sodium chloride into ionized water according to the weight ratio of 1:5, then adding 4-dimethylaminobutylamine accounting for 10-20% of the total amount of the sodium chloride, then adding nano-silica accounting for 40-50% of the total amount of the sodium chloride, continuing stirring at the rotating speed of 100-200r/min for 30-40min, and obtaining ionic liquid after the stirring is finished;
the modification method of the modified needle-like wollastonite comprises the following steps: sending wollastonite into a grinding machine for grinding at the grinding speed of 1000-1500r/min for 20-30min, then carrying out plasma treatment, then sending the wollastonite into iron chloride and aluminum chloride with the mass fraction of 20-30% for low-speed stirring at the stirring speed of 100-200r/min for 20-30min at the stirring temperature of 65-75 ℃, and finishing the stirring to obtain the modified needle-like wollastonite.
2. The method for preparing the negative ion functional mortar according to claim 1, wherein the specific conditions of the ionization activity treatment are as follows: the ionization temperature is 50-60 ℃, the voltage is 200-220V, the current is 5-7A, and the treatment time is 10-30 min.
3. The method for preparing anion functional mortar according to claim 1, wherein the ionization temperature is 55 ℃, the voltage is 210V, the current is 6A, and the treatment time is 20 min.
4. The method as claimed in claim 1, wherein the plasma treatment power is 100-500W, and the treatment time is 20-30 min.
5. The method for preparing anion functional mortar according to claim 1, wherein the plasma treatment power is 300W, and the treatment time is 25 min.
6. The method for preparing the anion functional mortar according to claim 1, wherein the curing temperature is 35-45 ℃ and the curing time is 10-20 h.
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| CN105384411A (en) * | 2015-12-11 | 2016-03-09 | 徐琪 | Preparation method of functional mortar capable of releasing negative ions |
| CN111013546A (en) * | 2019-11-29 | 2020-04-17 | 淮阴工学院 | Attapulgite particles for air purification and preparation method thereof |
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| CN105384411A (en) * | 2015-12-11 | 2016-03-09 | 徐琪 | Preparation method of functional mortar capable of releasing negative ions |
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