CN114890813B - Preparation method of mosquito-resistant ecological cement-based light board - Google Patents
Preparation method of mosquito-resistant ecological cement-based light board Download PDFInfo
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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
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/12—Scaring or repelling devices, e.g. bird-scaring apparatus using odoriferous substances, e.g. aromas, pheromones or chemical agents
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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
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention provides a preparation method of an anti-mosquito ecological cement-based light board, which comprises the following steps: step 1, freezing and drying anti-mosquito plant leaves, crushing the leaves, and soaking the crushed leaves in a deionized water solution to obtain a solution A; step 2, mixing and wet-milling the solution A and spherical zirconia to obtain a pasty anti-mosquito plant admixture, and sieving to obtain filtrate to obtain a solution B; step 3, adding ammonium chloride into the carboxymethyl cellulose solution, magnetically stirring until the ammonium chloride is completely dissolved, then adding a formaldehyde crosslinking agent and 1, 2-propylene glycol carbonate, uniformly mixing, then adding an oil-absorbing resin, and fully dissolving to obtain a solution C; step 4, adding the solution C into the solution B, and fully mixing to obtain a solution D; and 5, carrying out ultrasonic dispersion on the solution D, mixing the dispersed solution D with cement, fly ash and bentonite, adding a water reducing agent, stirring and forming, and curing to obtain the mosquito-resistant light board. The anti-mosquito light-weight board prepared by the invention has good anti-mosquito effect and long duration.
Description
Technical Field
The invention belongs to the field of building engineering materials, and particularly relates to a preparation method of an anti-mosquito ecological cement-based light board.
Background
In summer, mosquitoes are a problem which always troubles people, and according to statistics, about 70 thousands of people die from mosquito bites every year, wherein nearly 90% of people die from the malaria transmitted by the mosquitoes, and infectious encephalitis B, dengue fever, yellow fever, malaria and other diseases are transmitted by the mosquito bites, thereby bringing great threat to human health. Outdoor vacation hotels, open-air stadiums, open-air theaters, indoor places and the like are troubled by mosquitoes due to wide fields and a large number of green plants.
The prior multi-purpose mosquito repelling method comprises the modes of mosquito repellent incense, mosquito repellent spray, mosquito repellent bracelet, electric mosquito swatter and the like. The mosquito incense has limited action range, and the smell is harmful to the health of human bodies; the mosquito-proof spray and the mosquito-proof bracelet are limited in a small area, the fragrance is easy to volatilize, and the mosquito-proof bracelet is very inconvenient to carry. Meanwhile, the realization of high-efficiency, long-term and ecological mosquito resistance is still a great problem.
The herba Menthae Haplocalycis mainly contains oleum Menthae Dementholatum (herba Menthae extractive solution) derived from stem and leaf of fresh herba Menthae Haplocalycis, and is colorless or yellowish clear liquid. Has the characteristic fragrance and flavor of mint, is often used for repelling mosquitoes and can also improve mental fatigue. And has strong adaptability to environmental conditions and long duration of flowering period. The main chemical component of the geranium is geraniol, and the minor component of the geranium is menthol, so that the geranium has the mosquito repelling effect. The mosquito repellent vanilla has special and strong taste, contains citronellal as main chemical component, and can repel mosquitoes and avoid insects. However, the three plants have the problems of easy volatilization of aroma and short duration.
The application aims to prepare the mosquito-resistant light board by adopting the oil-absorbing resin loaded mosquito-resistant plant extract, and the mosquito-resistant light board has the advantages of good mosquito-resistant effect, long duration, no toxicity and no harm.
Disclosure of Invention
Aiming at the problems in the prior art, the technical scheme adopted by the invention for solving the problems in the prior art is as follows:
a preparation method of an anti-mosquito ecological cement-based light board comprises the following steps:
step 1, freeze-drying anti-mosquito plant leaves for 12-48h, then carrying out primary crushing to obtain plant broken leaves, and soaking the plant broken leaves in a deionized water solution to obtain a solution A;
step 2, pouring the solution A obtained in the step 1 and spherical zirconium oxide into a wet grinder, grinding for 40-100 min by a wet method to obtain a pasty anti-mosquito plant admixture with fineness less than or equal to 50 mu m, and sieving to obtain filtrate to obtain a solution B;
step 3, adding ammonium chloride into a 2-5% carboxymethyl cellulose solution, magnetically stirring until the ammonium chloride is completely dissolved, then adding a formaldehyde crosslinking agent and 1.2-propylene glycol carbonate, uniformly mixing, then adding an oil-absorbing resin, and fully dissolving to obtain a solution C;
step 4, adding the solution C into the solution B, and fully mixing to obtain a solution D;
and 5, performing ultrasonic dispersion on 50-100 parts of the solution D, mixing the dispersed solution D with 100-200 parts of cement, 150-300 parts of fly ash and 10-50 parts of bentonite, adding 2-5 parts of a water reducing agent, stirring, forming, and performing standard maintenance to obtain the mosquito-resistant light plate.
The mosquito-resistant plant used in the step 1 is one of mint leaves, geranium and anophelifuge.
In the step 1, 100 parts of plant crushed leaves are soaked in 50-100 parts of deionized water, so that the solid content of the solution A is more than 50%.
The spherical zirconia used in the step 2 comprises three diameters of 1.1mm to 1.3mm,1.5mm to 1.8mm,2.1mm to 2.5mm, and the weight ratio of the spherical zirconia of the three diameters is 2.
The concentration of the carboxymethyl cellulose solution used in the step 3 is 2-5%, the formaldehyde cross-linking agent accounts for 7-10% of the mass of the carboxymethyl cellulose solution, the ammonium chloride accounts for 2-3% of the mass of the carboxymethyl cellulose solution, and the 1, 2-propylene glycol carbonate accounts for 5-10% of the mass of the carboxymethyl cellulose solution.
The oil-absorbing resin adopted in the step 3 is one of polyacrylate, polyolefin and polyurethane, and the mass part of the oil-absorbing resin is 2-5% of the carboxymethyl cellulose solution.
In the step 5, the bentonite is water-absorbing pre-saturated bentonite, and the water accounts for 6-10% of the mass of the bentonite in parts by mass.
The water reducing agent used in the step 5 is one of a polycarboxylic acid water reducing agent, a naphthalene water reducing agent and a lignosulphonate water reducing agent, and the water reducing rate reaches 40%.
The invention has the following advantages:
1. according to the invention, the oil-absorbing resin is modified by crosslinking carboxymethyl cellulose with formaldehyde, 1, 2-propylene carbonate and ammonium chloride, the crosslinked carboxymethyl cellulose is of a linear structure, the molecular chains are closely arranged and have strong hydrogen bond action, so that the heat resistance of the oil-absorbing resin is improved, and the oil-absorbing resin has certain heat preservation property, so that chemical components playing a role of resisting mosquitoes in plants can volatilize at a certain temperature, and the effect is more durable; meanwhile, the modified oil-absorbing resin has enhanced hydrophobicity and improved penetration effect on oil substances, and gradual slow release of the plant volatile oil is realized.
2. The bentonite added in the invention is water-absorbing pre-saturated bentonite, and the water-rich gel of the water-absorbing pre-saturated bentonite has the characteristic of a multi-scale pore structure, can be used as a pore reforming agent, and can effectively improve the strength of the light board. Secondly, due to the nanoscale effect of the water-absorbing pre-saturated bentonite, the heat conductivity coefficient of the material can be effectively reduced, a certain heat preservation effect is achieved, and a certain regulation and control effect on the release of volatile oil in the modified oil-absorbing resin is achieved.
3. The oil-absorbing resin is modified by the carboxymethyl cellulose after the cross-linking reaction, the mosquito-resistant plant solution which is wet-milled is coated by the modified oil-absorbing resin to play a role in protection and regulation, and finally the modified oil-absorbing resin is combined with the bentonite to prepare the mosquito-resistant light plate which is used for outdoor construction with more plants, has obvious mosquito-resistant effect and long duration, saves the cost and space and creates a more comfortable living environment.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments.
Example 1
Step one, freeze-drying mint leaves for 24 hours, then carrying out primary crushing to obtain mint leaf crushed leaves, and soaking the mint leaf crushed leaves in a deionized water solution to obtain a solution A, wherein the solid content of the solution A is 50%;
step two, mixing the solution A obtained in the step one with a solution A with the diameter of 1.1mm:1.5mm:2.1mm, pouring spherical zirconia with the weight ratio of 2;
adding 2 mass percent of ammonium chloride into a carboxymethyl cellulose solution with the concentration of 2%, magnetically stirring until the ammonium chloride is completely dissolved, then adding 7 mass percent of formaldehyde crosslinking agent and 5 mass percent of 1.2-propylene carbonate into the carboxymethyl cellulose solution, uniformly mixing, then adding 2 mass percent of polyacrylate oil-absorbing resin into the carboxymethyl cellulose solution, and fully dissolving to obtain a solution C;
step four, adding the solution C into the solution B, and fully mixing to obtain a solution D;
and fifthly, carrying out ultrasonic dispersion on the solution D, mixing 50 parts of the solution D, 100 parts of cement, 150 parts of fly ash and 10 parts of water-absorbing pre-saturated bentonite with the water content of 6%, adding 2 parts of polycarboxylic acid water reducing agent, stirring and forming, and carrying out standard maintenance to obtain the mosquito-resistant light board.
Placing the mosquito-resistant light plate obtained in the steps into a 40cm multiplied by 40cm mesh enclosure, placing 50 mosquitoes into the mesh enclosure, recording the number of the mosquitoes staying on the surface of the light plate once every ten minutes, recording six times and summing up, calculating to obtain the total number of the mosquitoes staying on the surface of the light plate within 1h to be about 92, as shown in table 1, placing the light plate for three days, repeating the test, and calculating to obtain the total number of the mosquitoes staying on the surface of the light plate within 1h to be about 104.
Example 2
Step one, freeze-drying mint leaves for 24 hours, then carrying out primary crushing to obtain mint leaf crushed leaves, and soaking the mint leaf crushed leaves in a deionized water solution to obtain a solution A, wherein the solid content of the solution A is 55%;
step two, mixing the solution A in the step one with a solution with the diameter of 1.2mm:1.6mm:2.3mm, pouring spherical zirconia with the weight ratio of 2 to 1 into a ball mill, rotating at 300R/min, carrying out wet grinding for 40min to obtain a pasty anti-mosquito plant admixture with the fineness of less than or equal to 50 mu m, sieving the obtained anti-mosquito plant admixture, and taking a filtrate as a solution B;
adding 2 mass percent of ammonium chloride into a carboxymethyl cellulose solution with the concentration of 3%, magnetically stirring until the ammonium chloride is completely dissolved, then adding 8 mass percent of formaldehyde crosslinking agent and 6 mass percent of 1.2-propylene carbonate into the carboxymethyl cellulose solution, uniformly mixing, then adding 3 mass percent of polyacrylate oil-absorbing resin into the carboxymethyl cellulose solution, and fully dissolving to obtain a solution C;
step four, adding the solution C into the solution B, and fully mixing to obtain a solution D;
and fifthly, carrying out ultrasonic dispersion on the solution D, mixing 70 parts of the solution D, 150 parts of cement, 200 parts of fly ash and 20 parts of water-absorbing pre-saturated bentonite with the water content of 8%, adding 3 parts of naphthalene water reducer, stirring and forming, and carrying out standard maintenance to obtain the mosquito-resistant light plate.
The mosquito-repellent light plate obtained through the steps is placed in a 40cm x 40cm mesh enclosure, 50 mosquitoes are placed in the mesh enclosure, the number of the mosquitoes staying on the surface of the light plate once every ten minutes is recorded, the total number of the mosquitoes staying on the surface of the light plate within 1h is calculated to be about 79, the number is reduced compared with that of the mosquitoes in the embodiment 1, as shown in the table 1, the light plate is placed for three days, the test is repeated, and the total number of the mosquitoes staying on the surface of the light plate within 1h is calculated to be about 83.
Example 3
Step one, freeze-drying mint leaves for 24 hours, then carrying out primary crushing to obtain mint leaf crushed leaves, and soaking the mint leaf crushed leaves in a deionized water solution to obtain a solution A, wherein the solid content of the solution A is 60%;
step two, mixing the solution A in the step one with a solution with the diameter of 1.2mm:1.7mm:2.4mm, pouring spherical zirconia with the weight ratio of 2;
adding 3 mass percent of ammonium chloride into a carboxymethyl cellulose solution with the concentration of 4%, magnetically stirring until the ammonium chloride is completely dissolved, then adding 9 mass percent of formaldehyde crosslinking agent and 8 mass percent of 1.2-propylene carbonate into the carboxymethyl cellulose solution, uniformly mixing, then adding 4 mass percent of polyacrylate oil-absorbing resin into the carboxymethyl cellulose solution, and fully dissolving to obtain a solution C;
step four, adding the solution C into the solution B, and fully mixing to obtain a solution D;
and fifthly, performing ultrasonic dispersion on the solution D, mixing 80 parts of the solution D, 150 parts of cement, 200 parts of fly ash and 30 parts of water-absorbing presaturation bentonite with the water content of 9%, adding 4 parts of a lignosulfonate water reducing agent in a mixing manner, stirring, forming, and performing standard curing to obtain the mosquito-resistant light board.
The mosquito-repellent light plate obtained through the steps is placed in a 40cm x 40cm net cover, 50 mosquitoes are placed in the net cover, the number of the mosquitoes staying on the surface of the light plate is recorded once every ten minutes, the total number of the mosquitoes staying on the surface of the light plate within 1h is calculated to be about 84, the number is slightly increased compared with the number in the embodiment 2, as shown in the table 1, the light plate is placed for three days, the test is repeated, and the total number of the mosquitoes staying on the surface of the light plate within 1h is calculated to be about 94.
Example 4
Step one, freeze-drying mint leaves for 24 hours, then carrying out primary crushing to obtain mint leaf fragments, and soaking the mint leaf fragments in a deionized water solution to obtain a solution A, wherein the solid content of the solution A is 65%;
step two, mixing the solution A obtained in the step one with a solution A with the diameter of 1.3mm:1.8mm:2.5mm, pouring spherical zirconia with the weight ratio of 2 to 1 into a ball mill, rotating at 300R/min, carrying out wet grinding for 40min to obtain a pasty anti-mosquito plant admixture with the fineness of less than or equal to 50 mu m, sieving the obtained anti-mosquito plant admixture, and taking a filtrate as a solution B;
adding 3 mass percent of ammonium chloride into 5 mass percent of carboxymethyl cellulose solution, magnetically stirring until the ammonium chloride is completely dissolved, then adding 10 mass percent of formaldehyde crosslinking agent and 10 mass percent of 1.2-propylene carbonate into the carboxymethyl cellulose solution, uniformly mixing, then adding 5 mass percent of polyacrylate oil-absorbing resin into the carboxymethyl cellulose solution, and fully dissolving to obtain solution C;
step four, adding the solution C into the solution B, and fully mixing to obtain a solution D;
and fifthly, performing ultrasonic dispersion on the solution D, mixing 100 parts of the solution D, 200 parts of cement, 300 parts of fly ash and 50 parts of water-absorbing pre-saturated bentonite with the water content of 10%, adding 5 parts of polycarboxylic acid water reducing agent, stirring and forming, and performing standard maintenance to obtain the mosquito-resistant light board.
The mosquito-repellent light plate obtained through the steps is placed in a 40cm x 40cm mesh enclosure, 50 mosquitoes are placed in the mesh enclosure, the number of the mosquitoes staying on the surface of the light plate is recorded once every ten minutes, the total number of the mosquitoes staying on the surface of the light plate within 1h is calculated to be about 67, and the number is obviously reduced compared with that in the embodiment 3, as shown in table 1, the light plate is placed for three days, and the experiment is repeated to calculate that the total number of the mosquitoes staying on the surface of the light plate within 1h is about 72.
Comparative example 1
Step one, freeze-drying the lysimachia foenum-graecum hance for 24 hours, then carrying out primary crushing to obtain lysimachia foenum-graecum hance crushed leaves, and soaking the lysimachia foenum-graecum crushed leaves in a deionized water solution to obtain a solution A, wherein the solid content of the solution A is 65%;
step two, mixing the solution A in the step one with a solution with the diameter of 1.3mm:1.8mm:2.5mm, pouring spherical zirconia with the weight ratio of 2 to 1 into a ball mill, rotating at 300R/min, carrying out wet grinding for 40min to obtain a pasty anti-mosquito plant admixture with the fineness of less than or equal to 50 mu m, sieving the obtained anti-mosquito plant admixture, and taking a filtrate as a solution B;
and step three, performing ultrasonic dispersion on the solution B, mixing 100 parts of the solution B with 200 parts of cement, 300 parts of fly ash and 50 parts of water-absorbing pre-saturated bentonite with the water content of 10%, adding 5 parts of polycarboxylic acid water reducing agent, stirring and forming, and performing standard maintenance to obtain the mosquito-resistant light board.
The mosquito-repellent light plate obtained through the above steps is placed in a net cover of 40cm × 40cm, 50 mosquitoes are placed in the net cover, the number of mosquitoes staying on the surface of the light plate once every ten minutes is recorded, and the total number of mosquitoes staying on the surface of the light plate within 1h is calculated to be about 97, compared with the embodiment 4. The light weight plates were left for three days, and the above experiment was repeated, and it was calculated that the total number of mosquitoes staying on the surface of the light weight plates within 1h was about 112, compared to example 4 left for three days. It is known that the mosquito-repellent effect of example 4 is not significantly decreased, and the effect of comparative example 1 is significantly decreased, as shown in table 2.
Comparative example 2
Step one, freezing and drying geranium for 24 hours, then carrying out primary crushing to obtain geranium broken leaves, and soaking the geranium broken leaves in a deionized water solution to obtain a solution A, wherein the solid content of the solution A is 65%;
step two, mixing the solution A in the step one with a solution with the diameter of 1.3mm:1.8mm:2.5mm, pouring spherical zirconia with the weight ratio of 2 to 1 into a ball mill, rotating at 300R/min, carrying out wet grinding for 40min to obtain a pasty anti-mosquito plant admixture with the fineness of less than or equal to 50 mu m, sieving the obtained anti-mosquito plant admixture, and taking a filtrate as a solution B;
adding 3 mass percent of ammonium chloride into 5 mass percent of carboxymethyl cellulose solution, magnetically stirring until the ammonium chloride is completely dissolved, then adding 10 mass percent of formaldehyde crosslinking agent and 10 mass percent of 1.2-propylene carbonate into the carboxymethyl cellulose solution, uniformly mixing, then adding 5 mass percent of polyacrylate oil-absorbing resin into the carboxymethyl cellulose solution, and fully dissolving to obtain solution C;
step four, adding the solution C into the solution B, and fully mixing to obtain a solution D;
and fifthly, performing ultrasonic dispersion on the solution D, mixing 100 parts of the solution D, 200 parts of cement, 300 parts of fly ash and 50 parts of water-absorbing pre-saturated bentonite with the water content of 10%, adding 5 parts of polycarboxylic acid water reducing agent, stirring and forming, and performing standard maintenance to obtain the mosquito-resistant light board.
The mosquito-repellent light plate obtained through the steps is placed in a 40cm multiplied by 40cm mesh enclosure, 50 mosquitoes are placed in the mesh enclosure, the number of the mosquitoes staying on the surface of the light plate is recorded once every ten minutes, the total number of the mosquitoes staying on the surface of the light plate within 1h is calculated to be about 86, the number is obviously increased compared with the embodiment 4, as shown in the table 2, the light plate is placed for three days, the test is repeated, and the total number of the mosquitoes staying on the surface of the light plate within 1h is calculated to be about 93.
Comparative example 3
Step one, freeze-drying the lysimachia foenum-graecum for 24 hours, then carrying out primary crushing to obtain lysimachia foenum-graecum crushed leaves, and soaking the lysimachia foenum-graecum crushed leaves in a deionized water solution to obtain a solution A, wherein the solid content of the solution A is 65%;
step two, mixing the solution A in the step one with a solution with the diameter of 1.3mm:1.8mm:2.5mm, pouring spherical zirconia with the weight ratio of 2;
adding 3 mass percent of ammonium chloride into 5 mass percent of carboxymethyl cellulose solution, magnetically stirring until the ammonium chloride is completely dissolved, then adding 10 mass percent of formaldehyde crosslinking agent and 10 mass percent of 1.2-propylene carbonate into the carboxymethyl cellulose solution, uniformly mixing, then adding 5 mass percent of polyacrylate oil-absorbing resin into the carboxymethyl cellulose solution, and fully dissolving to obtain solution C;
step four, adding the solution C into the solution B, and fully mixing to obtain a solution D;
and fifthly, performing ultrasonic dispersion on the solution D, mixing 100 parts of the solution D, 200 parts of cement, 300 parts of fly ash and 50 parts of water-absorbing pre-saturated bentonite with the water content of 10%, adding 5 parts of polycarboxylic acid water reducing agent, stirring and forming, and performing standard maintenance to obtain the mosquito-resistant light board.
The mosquito-repellent light plate obtained through the steps is placed in a 40cm x 40cm mesh enclosure, 50 mosquitoes are placed in the mesh enclosure, the number of the mosquitoes staying on the surface of the light plate is recorded once every ten minutes, the total number of the mosquitoes staying on the surface of the light plate within 1h is calculated to be about 79, compared with the embodiment 4, the number is obviously increased, as shown in the table 2, the light plate is placed for three days, the test is repeated, and the total number of the mosquitoes staying on the surface of the light plate within 1h is calculated to be about 87.
Table 1: examples 1, 2,3, 4 comparison of effects
Table 2: example 4, comparative examples 1, 2 and 3 comparison of effects
Comparing examples 1, 2,3 and 4, it was found that the anti-mosquito effect increased slightly with increasing the fraction of solution D and increasing the fraction of bentonite, and then increased significantly, and over time, the anti-mosquito effect decreased slightly, but not significantly. In the embodiment 3, the mosquito-repellent effect is slightly reduced compared with that of the embodiment 2, mainly because the modified polyacrylate oil-absorbing resin has better performance than the polyolefin oil-absorbing resin.
Comparing example 4 with comparative example 1, it is found that the light board prepared by coating solution B with the modified oil-absorbing resin, and then mixing, molding and curing is much stronger than the light board prepared by directly mixing, molding and curing solution B, and it is also demonstrated that the modified oil-absorbing resin loaded with the mint extract protects the active ingredients in the extract, improves the anti-mosquito effect of the light board, and increases the action time. Comparing the example 4 with the comparative example 2,3, the modified mint leaf mosquito-repellent light plate is found to have a mosquito-repellent effect obviously superior to the modified mosquito-repellent vanilla and geranium mosquito-repellent light plate, and the duration of the mosquito-repellent effect is longer, but the mosquito-repellent effects of the mint leaf mosquito-repellent light plate, the mint leaf mosquito-repellent light plate and the geranium mosquito-repellent light plate are superior to the mosquito-repellent light plate which is not modified, and the modified oil-absorbing resin loaded mint extracting solution is explained again to protect the active ingredients in the extracting solution, improve the mosquito-repellent effect of the light plate, and prolong the acting time.
The protective scope of the present invention is not limited to the above-described embodiments, and it is apparent that various modifications and variations can be made to the present invention by those skilled in the art without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (7)
1. The preparation method of the mosquito-resistant ecological cement-based light board is characterized by comprising the following steps:
step 1, freeze-drying anti-mosquito plant leaves for 12-48h, then carrying out primary crushing to obtain plant broken leaves, and soaking the plant broken leaves in a deionized water solution to obtain a solution A;
step 2, pouring the solution A obtained in the step 1 and spherical zirconium oxide into a wet grinder, grinding for 40-100 min by a wet method to obtain a pasty anti-mosquito plant admixture with fineness less than or equal to 50 mu m, and sieving to obtain filtrate to obtain a solution B;
step 3, adding ammonium chloride into a 2-5% carboxymethyl cellulose solution, magnetically stirring until the ammonium chloride is completely dissolved, then adding a formaldehyde crosslinking agent and 1.2-propylene glycol carbonate, uniformly mixing, then adding an oil-absorbing resin, and fully dissolving to obtain a solution C;
step 4, adding the solution C into the solution B, and fully mixing to obtain a solution D;
step 5, performing ultrasonic dispersion on 50-100 parts of the solution D, mixing the dispersed solution D with 100-200 parts of cement, 150-300 parts of fly ash and 10-50 parts of bentonite, adding 2-5 parts of water reducing agent, stirring and forming, and performing standard maintenance to obtain the mosquito-resistant light plate;
in the step 5, the bentonite is water-absorbing pre-saturated bentonite, and the water accounts for 6-10% of the mass of the bentonite in parts by mass.
2. The method for preparing an anti-mosquito ecological cement-based light board as claimed in claim 1, wherein the method comprises the following steps: the mosquito-resistant plant used in the step 1 is one of mint leaves, geranium and anophelifuge.
3. The method for preparing an anti-mosquito ecological cement-based light board as claimed in claim 1, wherein the method comprises the following steps: in the step 1, 100 parts of plant crushed leaves are soaked in 50-100 parts of deionized water, so that the solid content of the solution A is more than 50%.
4. The method for preparing an anti-mosquito ecological cement-based light board as claimed in claim 1, wherein the method comprises the following steps: the spherical zirconia used in the step 2 comprises three diameters of 1.1mm to 1.3mm,1.5mm to 1.8mm,2.1mm to 2.5mm, and the weight ratio of the spherical zirconia of the three diameters is 2.
5. The method for preparing an anti-mosquito ecological cement-based light board as claimed in claim 1, wherein the method comprises the following steps: the concentration of the carboxymethyl cellulose solution used in the step 3 is 2-5%, the formaldehyde cross-linking agent is 7-10% of the mass part of the carboxymethyl cellulose solution, the ammonium chloride is 2-3% of the mass part of the carboxymethyl cellulose solution, and the 1, 2-propylene glycol carbonate is 5-10% of the mass part of the carboxymethyl cellulose solution.
6. The method for preparing an anti-mosquito ecological cement-based light board as claimed in claim 1, wherein the method comprises the following steps: the oil-absorbing resin adopted in the step 3 is one of polyacrylate, polyolefin and polyurethane, and the mass portion of the oil-absorbing resin is 2-5% of the carboxymethyl cellulose solution.
7. The method for preparing an anti-mosquito ecological cement-based light board as claimed in claim 1, wherein the method comprises the following steps: the water reducing agent used in the step 5 is one of a polycarboxylic acid water reducing agent, a naphthalene water reducing agent and a lignosulfonate water reducing agent, and the water reducing rate reaches 40%.
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| US5852077A (en) * | 1995-01-03 | 1998-12-22 | Composite Industries Of America, Inc. | Lightweight, waterproof, insulating, cementitious compositions and methods for forming and using such compositions |
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| CN105621976A (en) * | 2014-11-06 | 2016-06-01 | 哈尔滨欧麦克科技开发有限公司 | Method for removing mosquitoes and other insects in building house |
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| WO2019202415A1 (en) * | 2018-04-16 | 2019-10-24 | Talati Joy Snehalbhai | Natural mosquitoes repellent formulation |
| CN108675821A (en) * | 2018-06-04 | 2018-10-19 | 合肥语林装饰工程有限公司 | A kind of lightweight anticracking cement foaming insulation board |
| KR102043391B1 (en) * | 2019-06-12 | 2019-11-12 | (주)대한하이텍건설 | Imptoved Durability Eco-friendly Concrete Composition for Building to Decrease Fine Dust, Minute Plastic and Greenhouse Gases Using Seaweed and Constructing Methods Using Thereof |
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