CN115108779B - Waste active shellfish inactivated virus functional decorative wall material and preparation method thereof - Google Patents
Waste active shellfish inactivated virus functional decorative wall material and preparation method thereof Download PDFInfo
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- CN115108779B CN115108779B CN202210703770.7A CN202210703770A CN115108779B CN 115108779 B CN115108779 B CN 115108779B CN 202210703770 A CN202210703770 A CN 202210703770A CN 115108779 B CN115108779 B CN 115108779B
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a waste active shellfish inactivated virus functional decorative wall material and a preparation method thereof, wherein the decorative wall material comprises the following raw materials in percentage by volume: 30-50% of active shell powder, 10-16% of quartz sand, 15-20% of cement and 25-40% of auxiliary material; the auxiliary materials comprise one or more than two of wollastonite, copper sulfate, silver nitrate, tourmaline, mildew preventive and cellulose. The invention adopts physical and chemical treatment of shells, disinfects, sterilizes and deodorizes by hydrogen peroxide, and then carries out physical and chemical reaction with the hydrogen peroxide under the pressure and temperature of the autoclave, so that the active shell powder has the function of inactivating bacteria and viruses, and simultaneously protects the biophysical activity of the waste shells. The decorative wall material prepared by using the active shell powder can naturally breathe along with the change of temperature, automatically adjust the dryness and humidity of indoor air, release negative oxygen ions and improve the indoor living environment.
Description
Technical Field
The invention relates to a waste activated shellfish inactivated virus functional decorative wall material and a preparation method thereof, belonging to the technical field of marine waste utilization.
Background
With the improvement of the social living standard, the demand of marine foods is increasing, and the shell is more and more popular. With the increase in demand, the amount of shellfish to be cultured increases year by year, and a large amount of waste shells are generated, which may cause serious environmental problems if discarded without proper disposal. However, seashells have a very high utility value as a biomass. Shells contain a large number of natural pores of 2-10 μm, which are formed naturally, have good adsorption capacity, and are widely studied and applied to various fields. With the popularization of the shell powder technology, the application field is wider and wider, and the shell powder is gradually expanded to the decoration field from the initial beauty industry and food additives. The current research shows that the shell powder after special processing keeps the biophysical activity of the shell, and can have special functions such as formaldehyde adsorption, air purification, odor elimination, antibiosis, bacteriostasis, fire prevention, flame retardation, static prevention, air humidity adjustment, light pollution prevention and the like when being applied to building materials. Therefore, how to better utilize the waste shells and realize the high-value resource utilization of the shells has important significance.
Along with the increase of environmental protection strength in China in recent years, research on resource utilization of waste shells arouses great interest of researchers, for example, a method for preparing shell powder by calcining shells in a high-temperature furnace is reported in the literature ' research on antibacterial and mildew-removing properties of high-temperature calcined shell powder ', and the prepared shell powder is used for inhibiting and removing bacteria (see An Xin, waning sum, research on antibacterial and mildew-removing properties of high-temperature calcined shell powder, scientific and technological innovation, 2021 (27): 3-9 '). In the literature, "antibacterial performance research of high-temperature calcined shell powder", a method for preparing antibacterial shell powder by a high-temperature section method is also reported (Gaoguanqing, qi Shu, etc.. Antibacterial performance research of high-temperature calcined shell powder, proc. Of Jilin building university, 2022,39 (01): 38-42.). Chinese patent document CN107572971A discloses a lightweight fireproof ecological aldehyde-cleaning cement board. Although the shell powder prepared by the high-temperature calcination method has better performance, the biophysical activity of the shell after high-temperature calcination is greatly influenced, the retention of the biological activity in the shell is not facilitated, and the deep utilization value of the shell powder is influenced.
The amount of the waste shells is increased year by year along with the improvement of the whole living standard of the society, the environmental problem can be caused by random abandonment of the waste shells, and the high-value resource utilization of the waste shells has important significance for the culture and the environmental protection of the shellfish. The invention is therefore proposed.
Disclosure of Invention
Aiming at the defects in the prior art, in particular to the defect that the high-temperature calcination method adopted in the prior art is not beneficial to retaining the biological activity of shells, the invention provides a waste active shellfish inactivated virus functional decorative wall material and a preparation method thereof. According to the invention, waste shells are used as raw materials, the biological activity of the shells is improved through treatment processes such as oxidation and autoclaving, the active shell powder is prepared, and the active cement board is prepared through compounding of cement, quartz sand and the like, so that the resource utilization and high-value utilization of the waste shells are realized.
The technical scheme of the invention is as follows:
a waste active shellfish inactivated virus functional decorative wall material comprises the following raw materials in percentage by volume:
30-50% of active shell powder, 10-16% of quartz sand, 15-20% of cement and 25-40% of auxiliary material;
the auxiliary materials comprise one or more than two of wollastonite, copper sulfate, silver nitrate, tourmaline, mildew preventive and cellulose.
According to the invention, preferably, the active shell powder is prepared by the following method:
washing the waste shells of the marine shellfish with water, soaking the shells in hydrogen peroxide, then sterilizing by autoclaving, drying and grinding to obtain the active shell powder.
According to the invention, preferably, the mass concentration of the hydrogen peroxide is 25-50%;
preferably, the soaking time of the hydrogen peroxide is 5 to 30 minutes.
According to the invention, the steam pressure of steam sterilization is preferably 0.5MPa-1MPa, and more preferably 0.6MPa-0.8MPa;
preferably, the steam temperature of the steam pressure sterilization is 160-200 ℃;
preferably, the time for autoclaving and sterilization is 30 minutes to 60 minutes.
According to the present invention, it is preferable that the drying temperature is 100 ℃ to 600 ℃, further preferably 200 ℃ to 500 ℃.
According to the present invention, it is preferable that the number of the ground meshes is 280 to 5000 meshes.
According to the invention, preferably, the marine shellfish is oyster, mussel, conch, clam or razor clam.
According to the invention, the preparation of the active shell powder is preferred, a preferred embodiment, comprising the steps of:
washing and screening the shells of the waste marine shellfish by water, then conveying the shells to a hydrogen peroxide pool to soak for 5-30 minutes, then conveying the shells to an autoclave to sterilize, autoclaving for 30-60 minutes, taking the shells out of the autoclave, conveying the shells to a drying furnace to dry, wherein the temperature of the drying furnace is 100-600 ℃, and then conveying the shells to air flow to grind and grind the shells into powder to obtain active shell powder;
hydrogen peroxide mass concentration: 25-50%, autoclave pressure: 0.6MPa, vapor temperature: 160-200 ℃, grinding mesh number of shell powder: 280 meshes to 5000 meshes.
According to the invention, the preparation method of the waste activated shellfish inactivated virus functional decorative wall material comprises the following steps:
(1) Taking materials, namely weighing active shell powder, quartz sand, cement and auxiliary materials as raw materials according to volume percentage;
(2) Mixing the above materials, and stirring;
(3) Forming, namely curing the uniformly stirred materials at normal temperature after forming, and then carrying out steam reaction under the steam pressure of 5-8 MPa;
(4) And (4) drying, namely drying the product after the steam reaction to obtain the waste activated shellfish inactivated virus functional decorative wall material.
According to the present invention, it is preferable that the curing time at normal temperature in the step (3) is 3 to 8 hours, and the steam reaction time is 15 to 25 hours.
According to the present invention, it is preferable that the drying temperature in the step (4) is 100 to 150 ℃ and the drying time is 0.5 to 2 hours.
According to the invention, a preferable embodiment of the preparation method of the waste activated shellfish inactivated virus functional decorative wall material comprises the following steps:
(1) Taking materials, namely weighing active shell powder, quartz sand, cement and auxiliary materials as raw materials according to the volume percentage;
(2) Mixing the raw materials by a high-speed stirrer, and uniformly stirring;
(3) Molding, namely injecting the uniformly stirred material into a material storage tank through a high-pressure pump, allowing the material to flow into coarse cloth, curing the blank product which is formed by sticking a roller and is produced by adopting a calcium silicate board equipment process flow for 4 hours at normal temperature, and then feeding the blank product into an autoclave for steam reaction for 18 hours, wherein the steam pressure is 6 MPa;
(4) And (3) drying, namely, sending the product discharged from the autoclave into a drying room to be dried for 1 hour at the temperature of 120 ℃, thus obtaining the waste activated shellfish inactivated virus functional decorative wall material.
In the prior art, the shell powder is prepared by adopting a high-temperature calcination mode, the biophysical activity is greatly influenced, and the utilization value of the self functionality is reduced. The method takes waste marine shells as a disposal object, the waste shells are washed by water, dried in the air, conveyed to a hydrogen peroxide pool for soaking, filtered, conveyed to an autoclave for autoclaving, conveyed to a drying furnace for drying, conveyed to air flow for grinding and grinding into powder, and the active shell powder can be obtained. Mixing the prepared active shell powder with quartz sand, cement and auxiliary materials, and preparing a decorative wall material under the conditions of a fluid slurry method and steam high temperature of an autoclave, wherein the preferable decorative wall material can be a cement board. The method realizes the functions of inactivating bacteria and viruses and releasing biological negative electricity of the active shell powder, protects the biophysical activity of the waste shell, and realizes high-value utilization of the waste shell.
The invention has the following beneficial effects:
the invention adopts physical and chemical treatment of shells, disinfects, sterilizes and deodorizes by hydrogen peroxide, and then carries out physical and chemical reaction with the hydrogen peroxide under the pressure and temperature of the autoclave, so that the active shell powder has the function of inactivating bacteria and viruses, and simultaneously protects the biophysical activity of the waste shells. The decorative wall material prepared by using the active shell powder can naturally breathe along with the change of temperature, automatically adjust the dryness and humidity of indoor air, and simultaneously can release negative oxygen ions to improve the indoor living environment.
Detailed Description
The present invention is further illustrated by the following examples, which are presented for the purpose of illustration only and are not intended to limit the scope of the invention.
Example 1
Preparation of active shell powder:
washing and air-drying the shells, soaking the shells in 35% hydrogen peroxide for 10 minutes, filtering the shells, placing the shells in an autoclave, and autoclaving the shells under 0.6MPa for 35 minutes at the steam temperature of 160-200 ℃; steaming and pressing, drying in a drying furnace at 200 ℃, and then conveying to an air flow mill for crushing and grinding into active shell powder of 200 meshes.
Preparation of reactive cement board:
after the active shell powder is prepared, the active cement board is prepared by the following raw materials in percentage by volume through a slurry flow method and a steam autoclave steam high-temperature condition: 35% of active shell powder, 12% of quartz sand, 16% of cement and 37% of auxiliary materials; the auxiliary materials comprise 65% of wollastonite, 5% of copper sulfate, 2% of silver nitrate, 3% of tourmaline, 5% of mildew preventive and 20% of cellulose by taking the total mass of the auxiliary materials as 100%.
(1) Taking materials, namely weighing active shell powder, quartz sand, cement and auxiliary materials as raw materials according to volume percentage;
(2) Mixing the raw materials by a high-speed stirrer, and uniformly stirring;
(3) Molding, namely injecting the uniformly stirred material into a material storage tank through a high-pressure pump, allowing the material to flow into coarse cloth, curing the blank product which is formed by sticking a roller and is produced by adopting a calcium silicate board equipment process flow for 4 hours at normal temperature, and then feeding the blank product into an autoclave for steam reaction for 18 hours, wherein the steam pressure is 6 MPa;
(4) And (3) drying, namely, sending the product discharged from the autoclave into a drying room for drying for 1 hour at the temperature of 120 ℃ to obtain the active cement board.
Example 2
As described in example 1, except that:
preparation of active shell powder:
washing and air-drying shells, soaking the shells in hydrogen peroxide with the mass concentration of 40% for 20 minutes, filtering the shells, placing the shells in an autoclave, and autoclaving the shells for 50 minutes under the condition of 0.6MPa, wherein the steam temperature is 160-200 ℃; steaming and drying at 300 deg.C in a drying furnace, and pulverizing with air flow to obtain active shell powder of 500 meshes.
Preparing an activated cement board:
after the active shell powder is prepared, the active cement board is prepared by the following raw materials in percentage by volume through a fluid slurry method and a steam autoclave steam high-temperature condition: 40% of active shell powder, 15% of quartz sand, 17% of cement and 28% of auxiliary materials.
(1) Taking materials, namely weighing active shell powder, quartz sand, cement and auxiliary materials as raw materials according to volume percentage;
(2) Mixing the raw materials by a high-speed stirrer, and uniformly stirring;
(3) Molding, namely injecting the uniformly stirred material into a material storage tank through a high-pressure pump, allowing the material to flow into coarse cloth, curing the blank product which is formed by sticking a roller and is produced by adopting a calcium silicate board equipment process flow for 4 hours at normal temperature, and then feeding the blank product into an autoclave for steam reaction for 24 hours, wherein the steam pressure is 5 MPa;
(4) And (3) drying, namely, sending the product discharged from the autoclave into a drying room for drying for 0.5 hour at the temperature of 150 ℃ to obtain the active cement board.
Example 3
As described in example 1, except that:
preparation of active shell powder:
washing and air-drying the shells, soaking the shells in 45 mass percent hydrogen peroxide for 30 minutes, filtering the shells, placing the shells in an autoclave, and autoclaving the shells under 0.6MPa for 60 minutes at the steam temperature of 160-200 ℃; steaming and drying at 500 deg.C in a drying furnace, and pulverizing with air flow to obtain 1000 mesh active shell powder.
Preparation of reactive cement board:
after the active shell powder is prepared, the active cement board is prepared by the following raw materials in percentage by volume through a fluid slurry method and a steam autoclave steam high-temperature condition: 45% of active shell powder, 10% of quartz sand, 15% of cement and 30% of auxiliary materials.
(1) Taking materials, namely weighing active shell powder, quartz sand, cement and auxiliary materials as raw materials according to volume percentage;
(2) Mixing the raw materials by a high-speed stirrer, and uniformly stirring;
(3) Molding, namely injecting the uniformly stirred materials into a material storage tank through a high-pressure pump, allowing the materials to flow into coarse cloth, curing the blank product which is formed by sticking a roller and is produced by adopting a calcium silicate board equipment process flow for 4 hours at normal temperature, and then feeding the blank product into a still kettle for steam reaction for 16 hours, wherein the steam pressure is 8MPa;
(4) And (3) drying, namely, sending the product discharged from the autoclave into a drying room for drying for 1.5 hours at the temperature of 130 ℃, thus obtaining the active cement board.
Comparative example
As described in example 1, except that:
and (3) treating the shell by adopting a high-temperature calcination mode, and then grinding to obtain the shell powder.
The calcination temperature was 800 ℃ and the calcination time was 1 hour.
The cement board was then prepared according to the method of example 1.
Test examples
Examples 1-3 and comparative examples were tested for relevant performance as shown in table 1.
TABLE 1
Note: the antiviral activity rate refers to the percentage of inactivation of the virus.
As can be seen from Table 1, the negative ion release amount of the cement board prepared by using the active shell powder is much higher than that of the cement board prepared by using the comparative example, the activity rate of the anti-virus (influenza A virus H1N 1) is more than 99%, and the activity rate of the anti-virus (influenza A virus H1N 1) of the cement board prepared by using the shell powder calcined at high temperature is only 51.6%.
Claims (5)
1. The waste active shellfish inactivated virus functional decorative wall material is characterized by comprising the following raw materials in percentage by volume:
30-50% of active shell powder, 10-16% of quartz sand, 15-20% of cement and 25-40% of auxiliary materials;
the auxiliary materials comprise one or more than two of wollastonite, copper sulfate, silver nitrate, tourmaline and cellulose;
the active shell powder is prepared by the following method:
washing the shell of the waste marine shellfish with water, soaking the shell with hydrogen peroxide, sterilizing by autoclaving, drying, and grinding to obtain active shell powder;
the mass concentration of the hydrogen peroxide is 25 to 50 percent, the soaking time of the hydrogen peroxide is 5 to 30 minutes, the autoclaving pressure of the autoclaving sterilization is 0.5 to 1MPa, and the steam temperature of the autoclaving sterilization is 160 to 200 ℃; the time for autoclaving and sterilization is 30-60 minutes; the drying temperature is 100-600 ℃, and the grinding mesh number is 280-5000 meshes; the marine shellfish is oyster, mussel, conch, clam or razor clam.
2. The waste active shellfish deactivated virus functional decorative wall material as claimed in claim 1, wherein the autoclaving pressure for autoclaving, disinfection and sterilization is 0.6MPa-0.8MPa.
3. The preparation method of the waste activated shellfish deactivated virus functional decorative wall material as recited in claim 1, comprising the steps of:
(1) Taking materials, namely weighing active shell powder, quartz sand, cement and auxiliary materials as raw materials according to volume percentage;
(2) Mixing the above materials, and stirring;
(3) Forming, namely forming the uniformly stirred materials, then curing at normal temperature, and then carrying out steam reaction, wherein the steam pressure is 5-8 MPa;
(4) And (4) drying, namely drying the product after the steam reaction to obtain the waste activated shellfish inactivated virus functional decorative wall material.
4. The preparation method of the waste activated shellfish deactivated virus functional decorative wall material as claimed in claim 3, wherein the normal temperature curing time in step (3) is 3-8 hours, and the steam reaction time is 15-25 hours.
5. The preparation method of the waste activated shellfish inactivated virus functional decorative wall material according to claim 3, wherein the drying temperature in the step (4) is 100-150 ℃ and the drying time is 0.5-2 hours.
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| JP2004149345A (en) * | 2002-10-29 | 2004-05-27 | Taiheiyo Material Kk | Mortar concrete, and structure and fish-breeding ground using the same |
| KR20160061723A (en) * | 2014-11-24 | 2016-06-01 | 주식회사 송학 | Method for preparation of wall finishing material |
| CN106731642B (en) * | 2016-12-16 | 2019-07-23 | 高建明 | A kind of shell base material for air purification and preparation method thereof |
| CN111109297A (en) * | 2019-12-31 | 2020-05-08 | 上海海洋大学 | Application of shell powder of mytilus coruscus in bacteriostasis of marine bacteria |
| KR102421063B1 (en) * | 2020-08-31 | 2022-07-15 | 문지희 | Method for preparing architecture interior material using sea shell and architecture interior material prepared by the same |
| CN112680031A (en) * | 2021-01-07 | 2021-04-20 | 岭南师范学院 | Preparation method for preparing novel environment-friendly, nontoxic and dust-free high-quality seashell chalk by utilizing waste shells |
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