CN113443855A - Functional granite capable of releasing negative ions and preparation method thereof - Google Patents
Functional granite capable of releasing negative ions and preparation method thereof Download PDFInfo
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- CN113443855A CN113443855A CN202110868072.8A CN202110868072A CN113443855A CN 113443855 A CN113443855 A CN 113443855A CN 202110868072 A CN202110868072 A CN 202110868072A CN 113443855 A CN113443855 A CN 113443855A
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/18—Polyesters; Polycarbonates
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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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
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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
- C04B2111/54—Substitutes for natural stone, artistic materials or the like
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
The invention discloses a functional granite capable of releasing negative ions, which is prepared from the following raw materials in parts by weight: 6-8 parts of resin powder, 7-10 parts of curing agent, 0-2.5 parts of accelerator, 20-30 parts of powder, 20-30 parts of sand material and 0.1-1 part of modified tourmaline material. The invention also discloses a preparation method of the functional granite, which comprises the following steps: s1: mixing the raw materials according to the proportion, and stirring to obtain a material A; s2: and pouring the material A into a mold, vibrating in vacuum for 1-2 min, and naturally curing to obtain the material A. The functional granite has higher hardness and strength, and the modified tourmaline material is added, so that microcurrent basically matched with human bioelectricity flows on the surface of the granite all the time, the bioelectricity of a human body can be balanced, and meanwhile, far infrared rays and negative ions can be released, the sub-health state of the human body is improved, and more choices are provided for consumers.
Description
Technical Field
The invention belongs to the technical field of building material preparation, and particularly relates to a functional granite capable of releasing negative ions and a preparation method thereof.
Background
The granite is made up of crushed natural marble or stone powder as main raw material, mosaic, shell and glass as additive, organic resin as cementing agent, and through vacuum stirring, high-pressure vibration, solidifying at ordinary temp (for more than 7 days), sawing, grinding and polishing.
The research and development directions of the granite products in the market are mainly on the patterns, the function of the granite products is single, and with the more and more choice of people on the granite products, the appearance of the functional granite products can not only improve the share of the market but also provide more choices for consumers.
Disclosure of Invention
The invention provides a functional granite capable of releasing negative ions, which has higher hardness and strength, is added with modified tourmaline materials, and micro-current basically matched with human bioelectricity flows on the surface of the granite all the time, so that the bioelectricity of a human body can be balanced, and meanwhile, far infrared rays and negative ions can be released, the sub-health state of the human body is improved, and more choices are provided for consumers.
In order to achieve the purpose, the invention adopts the following technical scheme:
a functional granite capable of releasing negative ions is prepared from the following raw materials in parts by weight: 6-8 parts of resin powder, 7-10 parts of curing agent, 0-2.5 parts of accelerator, 20-30 parts of powder, 20-30 parts of sand material and 0.1-1 part of modified tourmaline material.
Further, the resin powder is unsaturated polyester resin powder;
the curing agent is methyl ethyl ketone peroxide;
the accelerant is cobalt cycloiso-octoate;
the powder material is calcium carbonate powder with the particle size of 300-600;
the sand material is natural granite broken stone.
Further, the preparation method of the modified tourmaline material comprises the following steps:
A. mixing tourmaline mineral powder with a surfactant, and grinding for 1-2 h to obtain a mixture;
B. adding the mixture into a ferrous sulfate solution, stirring for 10-30 min, adding a precipitator, heating to 50-80 ℃, and continuing stirring for 1-3 h; then adding a transforming agent, continuously heating to boil, performing ultrasonic dispersion for 10-30 min, and filtering to obtain a crude product;
C. and washing the crude product to be neutral, drying, carrying out sectional calcination under the protection of argon, and then grinding to obtain the particle size of 100-500 nm.
Further, in the step A, the surfactant is cetyl trimethyl ammonium bromide.
Further, in the step B, one of ammonium bicarbonate, sodium bicarbonate or potassium bicarbonate is adopted; the transforming agent is ammonia water solution.
Further, the ultrasonic power in the step B is 200-500W.
Further, in step C, the step of calcining comprises: firstly, heating to 100 ℃ at the speed of 3-5 ℃/min, and keeping for 1-2 h; and then heating to 500-650 ℃ at the speed of 1-3 ℃/min, keeping for 1-3 h, and then cooling to room temperature at the speed of 3-5 ℃/min.
The invention also provides a preparation method of the functional granite capable of releasing negative ions, which comprises the following steps:
s1: mixing the raw materials according to the proportion, and stirring to obtain a mixed material;
s2: and pouring the mixed material into a mold, vibrating in vacuum for 1-2 min, and naturally curing to obtain the material.
Further, in step S1, the stirring speed is 40-300 r/min, and the stirring time is 15-20 min.
Further, in step S2, the vacuum degree of the vacuum oscillation is 0.095 to 0.1 MPa.
Compared with the prior art, the invention has the beneficial effects that:
1. the modified tourmaline material is added into the functional granite, and micro-current basically matched with human bioelectricity flows on the surface of the granite all the time, so that the bioelectricity of a human body can be balanced, pathological potentials can be recovered to be normal, and meanwhile, far infrared rays and negative ions can be released, so that the activity of cells can be enhanced, the metabolism can be promoted, the fatigue can be relieved, the sub-health state of the human body can be improved, and the immunity of the human body can be improved.
2. In the preparation method of the modified tourmaline material, iron enters tourmaline unit cells in a single atom form to achieve a doping effect in the calcining process, so that the infrared radiation capability of the tourmaline material is improved to a certain degree; in addition, the negative ions and the monatomic iron released by the tourmaline material also have the capability of catalyzing and decomposing formaldehyde, so that the formaldehyde is degraded into harmless carbon dioxide and water, and secondary pollution is avoided; the modified tourmaline material is doped with the monatomic iron, so that the treatment effect on formaldehyde is enhanced.
3. According to the preparation method of the modified tourmaline material, the weak base is used as a precipitator, the reaction is carried out under a near-neutral condition, the reaction condition is mild, and the particle diameter ratio of the generated basic carbonate is relatively uniform; but the basic carbonate contains more crystal water and has larger particles; according to the invention, ammonia water is added to convert the precipitate, so that the generated basic carbonate precipitate can be promoted to be completely converted into hydroxide precipitate, the conversion is carried out between solid phases, the generated hydroxide has fine particle size, is loose and porous, can more easily form a single-atom form under the calcination condition, and is doped with tourmaline ore powder; and the ammonia water can further convert the unreacted iron ions into ferric hydroxide precipitates, thereby improving the yield of the product.
4. The functional granite of the invention can meet the increasing demands of people, provides more choices for consumers and is suitable for popularization and application.
Detailed Description
In order to facilitate a better understanding of the invention, the following examples are given to illustrate, but not to limit the scope of the invention.
Example 1
A functional granite capable of releasing negative ions is prepared from the following raw materials in parts by weight: 6 parts of unsaturated polyester resin powder, 7 parts of methyl ethyl ketone peroxide, 25 parts of calcium carbonate powder with the particle size of 600, 30 parts of natural granite gravel sand and 1 part of modified tourmaline material.
The preparation method of the modified tourmaline material comprises the following steps:
A. mixing tourmaline mineral powder with hexadecyl trimethyl ammonium bromide, and grinding for 1h to obtain a mixture;
B. adding the mixture into a ferrous sulfate solution, stirring for 10min, adding ammonium bicarbonate, heating to 50 ℃, and continuing stirring for 3 h; then adding ammonia water solution, continuously heating to boil, performing ultrasonic dispersion at 200W for 30min, and filtering to obtain a crude product;
C. washing the crude product to be neutral, drying, heating to 100 ℃ at the speed of 3 ℃/min under the protection of argon, and keeping for 1 h; heating to 500 deg.C at a rate of 1 deg.C/min, maintaining for 1h, cooling to room temperature at a rate of 3 deg.C/min, and grinding to particle size of 500 nm.
A preparation method of functional granite capable of releasing negative ions comprises the following steps:
s1: mixing the raw materials according to the proportion, and stirring for 20min at 40r/min to obtain a mixed material;
s2: pouring the mixture into a mold, shaking for 2min under the vacuum degree of 0.095MPa, and naturally curing to obtain the final product.
Example 2
A functional granite capable of releasing negative ions is prepared from the following raw materials in parts by weight: 7 parts of unsaturated polyester resin powder, 10 parts of methyl ethyl ketone peroxide, 1 part of cobalt cyclooctanoate, 20 parts of calcium carbonate powder with the particle size of 500, 20 parts of natural granite gravel sand and 0.1 part of modified tourmaline material.
The preparation method of the modified tourmaline material comprises the following steps:
A. mixing tourmaline mineral powder with hexadecyl trimethyl ammonium bromide, and grinding for 1.5h to obtain a mixture;
B. adding the mixture into a ferrous sulfate solution, stirring for 30min, adding potassium bicarbonate, heating to 80 ℃, and continuing stirring for 1 h; then adding ammonia water solution, continuously heating to boil, performing ultrasonic dispersion at 500W for 10min, and filtering to obtain a crude product;
C. washing the crude product to be neutral, drying, heating to 100 ℃ at the speed of 5 ℃/min under the protection of argon, and keeping for 2 h; then heating to 650 ℃ at the speed of 3 ℃/min, keeping for 2h, then cooling to room temperature at the speed of 5 ℃/min, and grinding until the particle size is 300 nm.
A preparation method of functional granite capable of releasing negative ions comprises the following steps:
s1: mixing the raw materials according to the proportion, and stirring for 15min at 300r/min to obtain a mixed material;
s2: pouring the mixture into a mold, shaking for 1min under the vacuum degree of 0.098MPa, and naturally curing to obtain the final product.
Example 3
A functional granite capable of releasing negative ions is prepared from the following raw materials in parts by weight: 8 parts of unsaturated polyester resin powder, 9 parts of methyl ethyl ketone peroxide, 1 part and 2.5 parts of cobalt cyclooctanoate, 30 parts of calcium carbonate powder with the particle size of 300, 25 parts of natural granite gravel sand and 0.8 part of modified tourmaline material.
The preparation method of the modified tourmaline material comprises the following steps:
A. mixing tourmaline mineral powder with hexadecyl trimethyl ammonium bromide, and grinding for 2h to obtain a mixture;
B. adding the mixture into a ferrous sulfate solution, stirring for 20min, adding sodium bicarbonate, heating to 70 ℃, and continuing stirring for 2 h; then adding ammonia water solution, continuously heating to boil, performing ultrasonic dispersion at 300W for 20min, and filtering to obtain a crude product;
C. washing the crude product to be neutral, drying, heating to 100 ℃ at the speed of 4 ℃/min under the protection of argon, and keeping for 2 h; then raising the temperature to 580 ℃ at the speed of 2 ℃/min, keeping the temperature for 2h, then cooling to room temperature at the speed of 4 ℃/min, and then grinding until the particle size is 100 nm.
A preparation method of functional granite capable of releasing negative ions comprises the following steps:
s1: mixing the raw materials according to the proportion, and stirring for 18min at 200r/min to obtain a mixed material;
s2: pouring the mixture into a mold, shaking for 1min under a vacuum degree of 0.1MPa, and naturally curing to obtain the final product.
Comparative example 1
Essentially the same as example 3, except that no tourmaline material was added.
Comparative example 2
Essentially the same as the starting material in example 3, except that the tourmaline material was not modified.
Comparative example 3
Basically the same raw materials as in example 3, except that in the method of making the modified tourmaline material, the precipitant was sodium carbonate and no ammonia was used for the conversion.
Anion release detection experiment
The agglomerated stone prepared in the embodiments 1-3 and the comparative examples 1-3 of the invention is sent to a national center for detection to detect the release condition of negative ions, and the detection method is an indoor air ion concentration test method, and the principle is as follows: the method is characterized in that a parallel plate capacitor or a cylindrical capacitor is adopted as an ion collector, air is forced to circulate by a forced air exchange device, and the concentration of negative ions is calculated by recording the change rate of an electric signal on the capacitor along with time. The results are shown in Table 1.
TABLE 1 anion Release from the granite prepared in examples 1-3 and comparative examples 1-3
Case(s) | Number of negative ions/number |
Example 1 | 3520 |
Example 2 | 3530 |
Example 3 | 3550 |
Comparative example 1 | 0 |
Comparative example 2 | 3200 |
Comparative example 3 | 3310 |
As can be seen from table 1, comparative example 1 had no tourmaline material added, and therefore no negative ion release could be detected; the number of negative ions released by the granite prepared in the embodiments 1-3 of the invention is higher than that of the comparative example 2 by more than 10%, and higher than that of the comparative example 3 by more than 6.3%. Therefore, the tourmaline material is added into the granite, so that negative ions can be released really; after the tourmaline material is modified, the capability of releasing negative ions is enhanced by more than 10 percent; if ammonia water is not adopted to convert the sediment in the process of preparing the modified tourmaline material, the release amount of negative ions is reduced by more than 6.3 percent.
Performance test
1. The flexural strength, compressive strength and water absorption of the granite prepared in examples 1 to 3 and comparative examples 1 to 3 of the present invention were measured according to the standard JC/T2110-2012, and the results are shown in Table 2.
2. According to the sixth acceptance standard of GB50325-2012 environmental pollutant control Specification for civil construction engineering: the maximum allowable concentration of formaldehyde in the air is 0.10mg/m3The granite prepared in the invention in the examples 1-3 and the comparative examples 1-3 was placed in the air with a formaldehyde concentration of 0.12mg/m3In the environment (2), the formaldehyde concentration after the standing time was 24 hours was measured. The results are shown in Table 2.
TABLE 2 comparison of the Properties of the granite prepared in examples 1-3 and comparative examples 1-3
Case(s) | Flexural Strength/MPa | Compressive strength/MPa | Water absorption/%) | Concentration of Formaldehyde/mg/m3 |
Example 1 | 34.5 | 125 | 0.02 | 0.03 |
Example 2 | 34.8 | 126 | 0.02 | 0.03 |
Example 3 | 35.0 | 126 | 0.01 | 0.02 |
Comparative example 1 | 28.1 | 101 | 0.05 | 0 |
Comparative example 2 | 31.3 | 113 | 0.03 | 0.08 |
Comparative example 3 | 33.2 | 121 | 0.03 | 0.06 |
As can be seen from Table 2, the performance indexes of the granite prepared in the embodiments 1-3 of the invention are superior to those of the embodiments 1-3, wherein the bending strength and the compression strength are higher than that of the comparative example 2 by more than 10%, higher than that of the comparative example 1 by more than 22%, and higher than that of the comparative example 3 by more than 3.9%; the water absorption rate is low; the tourmaline material of the invention has certain formaldehyde removal effect after being modified, and the formaldehyde removal effect of the modified tourmaline material is improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The functional granite capable of releasing negative ions is characterized by being prepared from the following raw materials in parts by weight: 6-8 parts of resin powder, 7-10 parts of curing agent, 0-2.5 parts of accelerator, 20-30 parts of powder, 20-30 parts of sand material and 0.1-1 part of modified tourmaline material.
2. The functional granite capable of releasing negative ions as claimed in claim 1, characterized in that:
the resin powder is unsaturated polyester resin powder;
the curing agent is methyl ethyl ketone peroxide;
the accelerant is cobalt iso-octoate;
the powder material is calcium carbonate powder with the particle size of 300-600;
the sand material is natural granite broken stone.
3. The functional granite capable of releasing negative ions as claimed in claim 1, characterized in that: the preparation method of the modified tourmaline material comprises the following steps:
A. mixing tourmaline mineral powder with a surfactant, and grinding for 1-2 h to obtain a mixture;
B. adding the mixture into a ferrous sulfate solution, stirring for 10-30 min, adding a precipitator, heating to 50-80 ℃, and continuing stirring for 1-3 h; then adding a transforming agent, continuously heating to boil, performing ultrasonic dispersion for 10-30 min, and filtering to obtain a crude product;
C. and washing the crude product to be neutral, drying, carrying out sectional calcination under the protection of argon, and grinding to obtain the particle size of 100-500 nm.
4. The functional granite capable of releasing negative ions as claimed in claim 1, characterized in that: in the step B, heating to 50-100 ℃.
5. The functional granite capable of releasing negative ions as claimed in claim 1, characterized in that:
in the step A, the surfactant is cetyl trimethyl ammonium bromide;
in the step B, the precipitant is one of ammonium bicarbonate, sodium bicarbonate or potassium bicarbonate; the transforming agent is ammonia water solution.
6. The functional granite capable of releasing negative ions as claimed in claim 1, characterized in that: the ultrasonic frequency in the step B is 200-500 Hz.
7. The functional granite capable of releasing negative ions as claimed in claim 1, characterized in that: the step C comprises the following steps: firstly, heating to 100 ℃ at the speed of 3-5 ℃/min, and keeping for 1-2 h; and then heating to 500-650 ℃ at the speed of 1-3 ℃/min, keeping for 1-3 h, and then cooling to room temperature at the speed of 3-5 ℃/min.
8. A method for preparing the functional granite capable of releasing negative ions according to claims 1-7, characterized by comprising the following steps:
s1: mixing the raw materials according to the proportion, and stirring to obtain a material A;
s2: and pouring the material A into a mold, vibrating in vacuum for 1-2 min, and naturally curing to obtain the material A.
9. The method for preparing functional granite capable of releasing negative ions according to claim 8, characterized in that: in step S1, the stirring speed is 40-300 r/min, and the stirring time is 15-20 min.
10. The method for preparing functional granite capable of releasing negative ions according to claim 8, characterized in that: in step S2, the vacuum degree of the vacuum oscillation is 0.095-0.1 MPa.
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Denomination of invention: Functional granite capable of releasing negative ions and its preparation method Effective date of registration: 20221207 Granted publication date: 20220805 Pledgee: Hezhou Branch of Guangxi Beibu Gulf Bank Co.,Ltd. Pledgor: GUANGXI LISHENG STONE Co.,Ltd. Registration number: Y2022980025495 |