CN111484774A - Fruit tree sunscreen cream and preparation method thereof - Google Patents
Fruit tree sunscreen cream and preparation method thereof Download PDFInfo
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- CN111484774A CN111484774A CN202010522298.8A CN202010522298A CN111484774A CN 111484774 A CN111484774 A CN 111484774A CN 202010522298 A CN202010522298 A CN 202010522298A CN 111484774 A CN111484774 A CN 111484774A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D105/00—Coating compositions based on polysaccharides or on their derivatives, not provided for in groups C09D101/00 or C09D103/00
- C09D105/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/32—Radiation-absorbing paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The invention discloses a fruit tree sunscreen cream which comprises the following components in parts by weight: 1-2 parts of lime powder, 1-2 parts of talcum powder, 0.8-1.5 parts of water-soluble chitosan, 0.01-0.03 part of betaine, 0.06-0.2 part of humectant, 0.05-0.3 part of dispersant, 0.2-0.5 part of water-phase emulsifier, 0.2-0.5 part of starch, 0.8-1.5 parts of seaweed extract, 0.3-0.7 part of titanium dioxide, 0.2-0.6 part of chelating agent and 3-4 parts of water. The fruit tree sunscreen cream prepared by the invention can prevent and control the generation of sunscald, promote the growth of fruits, improve the yield and quality of the fruits and integrate the prevention and control of plant diseases and the promotion of growth.
Description
Technical Field
The invention relates to the technical field of daily chemicals, and particularly relates to a fruit tree sunscreen cream and a preparation method thereof.
Background
The method is characterized in that the sun burn disease is produced after the citrus fruits and the citrus leaves are exposed to the sun continuously under the strong sunlight at high temperature and drought for 6-9 months, so that the physiological change of hindered growth of fruit peels and mesophyll is caused; at the initial stage of burn, the surface of the fruit can be cracked, the pericarp nearby can be faded to form a yellowish spot, and the yellowish spot can continuously spread to pieces, if the degree of sunburn is serious, the necrotic oil cells can be blackened, and the center can be dented to form dry scars; but at the moment, the injury does not go deep into the sponge layer, so the internal pulp is intact, the quality is not affected, the disease spots on the surface of the fruit become black and crack along with sinking, the juice cells are granulated and lack water, and the edible value of the fruit is lost, so the method is very important for preventing and treating the sun-screening and sunburn of the fruit trees.
At present, most of the existing sun protection technologies for citrus fruit trees are used for sun protection of fruits by farmers according to experience continued for many years and a personal self-created traditional method, such as lime powder spraying, water spraying and bagging, wherein the method of lime powder spraying reduces photosynthesis of plants, influences tree vigor, lime easily falls off after spraying, needs to be continuously sprayed, meanwhile, lime remains on fruit peels to influence sales, water spraying improves gap humidity and microclimate of an orchard, bagging is large in workload, influences fruit growth, and has a common sun protection effect.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide a fruit tree sunscreen cream and a preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a fruit tree sunscreen cream which comprises the following components in parts by weight:
1-2 parts of lime powder, 1-2 parts of talcum powder, 0.8-1.5 parts of water-soluble chitosan, 0.01-0.03 part of betaine, 0.06-0.2 part of humectant, 0.05-0.3 part of dispersant, 0.2-0.5 part of water-phase emulsifier, 0.2-0.5 part of starch, 0.8-1.5 parts of seaweed extract, 0.3-0.7 part of titanium dioxide, 0.2-0.6 part of chelating agent and 3-4 parts of water.
Further, the fruit tree sunscreen cream comprises the following components in parts by weight:
1.5 parts of lime powder, 1.5 parts of talcum powder, 1.2 parts of water-soluble chitosan, 0.02 part of betaine, 0.1 part of humectant, 0.15 part of dispersant, 0.35 part of water-phase emulsifier, 0.3 part of starch, 1.1 part of seaweed extract, 0.5 part of titanium dioxide, 0.4 part of chelating agent and 3.5 parts of water.
Furthermore, the humectant is propylene glycol, the dispersant is polyethylene glycol, the titanium dioxide is nano titanium dioxide, and the chelating agent is ethylenediamine tetraacetic acid.
The fruit tree sunscreen cream is prepared by adopting the following method:
step 1: adding the lime powder, the talcum powder, the water-soluble chitosan, the betaine, the humectant, the dispersant, the water-phase emulsifier and the titanium dioxide in parts by weight into a grinding tank, fully stirring and mixing for 20-30 minutes at normal temperature, and adding the starch, the sodium alginate extracting solution and the water in parts by weight during stirring to prepare a paste base solution;
step 2: standing the pasty base liquid prepared in the step 1 for 30-40 minutes, and then filtering suspended liquid in the pasty base liquid to obtain a paste;
and step 3: pouring the paste prepared in the step 2 into an enamel reaction kettle, adding the chelating agent in parts by weight, carrying out chelation reaction on the paste in the enamel reaction kettle, and preparing a chelate after the chelation reaction;
and 4, step 4: and (4) mixing the chelate prepared in the step (3) and putting the mixture into a centrifugal extractor for extraction for 25-35 minutes to prepare the sunscreen cream.
Further, the chelation reaction temperature in the step 3 is 70-80 ℃, and the reaction time is 3-4 hours.
Further, the extraction temperature of the extraction centrifuge is 20-40 ℃, the extraction pressure is 15-25Mpa, and the rotation speed of the extraction centrifuge is 2000-.
The invention has the following beneficial effects:
(1) the titanium dioxide is applied to fruit sun protection, has high refractivity and high photoactivity, and has a good shielding effect on ultraviolet local areas.
(2) The water-soluble chitosan can kill pests and resist diseases of plants, play a role of fertilizer, improve the immunity of the plants and promote the health of the plants, and meanwhile, the seaweed extract can promote the growth of weak young shoots, increase the number of the young shoots, the number of leaves, the area of the leaves and the thickness of the leaves and promote the growth, thereby improving the quality and increasing the yield.
(3) The application method is simple, the sunscreen cream and water are diluted in proportion and sprayed on fruit trees and fruits, the sunscreen cream covers the surfaces of citrus fruits, the use method is safe, harmless and stable in property, a large amount of manpower and material resources are not needed to be consumed during use, the planting cost is reduced, the good economic benefit is achieved, and the integration of prevention, control and fruit growth promotion is achieved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, 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 invention provides a fruit tree sunscreen cream which comprises the following components in parts by weight:
1 part of lime powder, 1 part of talcum powder, 0.8 part of water-soluble chitosan, 0.01 part of betaine, 0.06 part of humectant, 0.05 part of dispersant, 0.2 part of water-phase emulsifier, 0.2 part of starch, 0.8 part of seaweed extract, 0.3 part of titanium dioxide, 0.2 part of chelating agent and 3 parts of water.
Furthermore, the humectant is propylene glycol, the dispersant is polyethylene glycol, the titanium dioxide is nano titanium dioxide, and the chelating agent is ethylenediamine tetraacetic acid.
The fruit tree sunscreen cream is prepared by adopting the following method:
step 1: adding the lime powder, the talcum powder, the water-soluble chitosan, the betaine, the humectant, the dispersant, the water-phase emulsifier and the titanium dioxide in parts by weight into a grinding tank, fully stirring and mixing for 20 minutes at normal temperature, and adding the starch, the sodium alginate extracting solution and the water in parts by weight during stirring to prepare a paste base solution;
step 2: standing the pasty base liquid prepared in the step 1 for 30 minutes, and then filtering suspended liquid in the pasty base liquid to obtain a paste;
and step 3: pouring the paste prepared in the step 2 into an enamel reaction kettle, adding the chelating agent in parts by weight, carrying out chelation reaction on the paste in the enamel reaction kettle, and preparing a chelate after the chelation reaction;
and 4, step 4: and (4) mixing the chelate prepared in the step (3) and putting the mixture into a centrifugal extractor to extract for 25 minutes to prepare the sunscreen cream.
Further, the chelation reaction temperature in the step 3 is 70 ℃, and the reaction time is 3 hours.
Furthermore, the extraction temperature of the extraction centrifuge is 20 ℃, the extraction pressure is 15Mpa, and the rotation speed of the extraction centrifuge is 2000 r/min.
Example 2
The invention provides a fruit tree sunscreen cream which comprises the following components in parts by weight:
1.5 parts of lime powder, 1.5 parts of talcum powder, 1.2 parts of water-soluble chitosan, 0.02 part of betaine, 0.1 part of humectant, 0.15 part of dispersant, 0.35 part of water-phase emulsifier, 0.3 part of starch, 1.1 part of seaweed extract, 0.5 part of titanium dioxide, 0.4 part of chelating agent and 3.5 parts of water.
Furthermore, the humectant is propylene glycol, the dispersant is polyethylene glycol, the titanium dioxide is nano titanium dioxide, and the chelating agent is ethylenediamine tetraacetic acid.
The fruit tree sunscreen cream is prepared by adopting the following method:
step 1: adding the lime powder, the talcum powder, the water-soluble chitosan, the betaine, the humectant, the dispersant, the water-phase emulsifier and the titanium dioxide in parts by weight into a grinding tank, fully stirring and mixing for 25 minutes at normal temperature, and adding the starch, the sodium alginate extracting solution and the water in parts by weight during stirring to prepare a paste base solution;
step 2: standing the pasty base liquid prepared in the step 1 for 35 minutes, and then filtering suspended liquid in the pasty base liquid to obtain a paste;
and step 3: pouring the paste prepared in the step 2 into an enamel reaction kettle, adding the chelating agent in parts by weight, carrying out chelation reaction on the paste in the enamel reaction kettle, and preparing a chelate after the chelation reaction;
and 4, step 4: and (4) mixing the chelate prepared in the step (3) and putting the mixture into a centrifugal extractor to extract for 30 minutes to prepare the sunscreen cream.
Further, the chelation reaction temperature in the step 3 is 75 ℃, and the reaction time is 3.5 hours.
Further, the extraction temperature of the extraction centrifuge is 30 ℃, the extraction pressure is 20Mpa, and the rotation speed of the extraction centrifuge is 2500 r/min.
Example 3
The invention provides a fruit tree sunscreen cream which comprises the following components in parts by weight:
2 parts of lime powder, 2 parts of talcum powder, 1.5 parts of water-soluble chitosan, 0.03 part of betaine, 0.2 part of humectant, 0.3 part of dispersant, 0.5 part of water-phase emulsifier, 0.5 part of starch, 1.5 parts of seaweed extract, 0.7 part of titanium dioxide, 0.6 part of chelating agent and 4 parts of water.
Furthermore, the humectant is propylene glycol, the dispersant is polyethylene glycol, the titanium dioxide is nano titanium dioxide, and the chelating agent is ethylenediamine tetraacetic acid.
The fruit tree sunscreen cream is prepared by adopting the following method:
step 1: adding the lime powder, the talcum powder, the water-soluble chitosan, the betaine, the humectant, the dispersant, the water-phase emulsifier and the titanium dioxide in parts by weight into a grinding tank, fully stirring and mixing for 30 minutes at normal temperature, and adding the starch, the sodium alginate extracting solution and the water in parts by weight during stirring to prepare a paste base solution;
step 2: standing the pasty base liquid prepared in the step 1 for 40 minutes, and then filtering suspended liquid in the pasty base liquid to obtain a paste;
and step 3: pouring the paste prepared in the step 2 into an enamel reaction kettle, adding the chelating agent in parts by weight, carrying out chelation reaction on the paste in the enamel reaction kettle, and preparing a chelate after the chelation reaction;
and 4, step 4: and (4) mixing the chelate prepared in the step (3) and putting the mixture into a centrifugal extractor for extraction for 35 minutes to prepare the sunscreen cream.
Further, the chelation reaction temperature in the step 3 is 80 ℃, and the reaction time is 4 hours.
Furthermore, the extraction temperature of the extraction centrifuge is 40 ℃, the extraction pressure is 25Mpa, and the rotation speed of the extraction centrifuge is 3000 r/min.
And (3) comparison test:
and (3) experimental design: selecting oranges as fruit tree planting objects, selecting three planting bases at the same place, wherein the planting density of the three planting bases is 100 plants/800 m2The fruit sunscreen cream prepared in example 2 of the present invention was used as experimental group one.
Control test group:
control group one: spraying a functional foliar fertilizer-fruit tree sun-screening agent produced by Henan Wald agricultural science and technology limited company.
Control group two: and (5) spraying clear water.
The sunscreen cream prepared by the invention and the clear water sprayed in the comparison test II adopt the same using method and time as those of the fruit tree sunscreen agent in the comparison test I.
Control experiment one fruit tree sunscreen agent was used in the following manner and period:
the product is diluted by 500 times and sprayed evenly by 700 times, and is used for about 7 days before the coming of high-temperature season, and is continuously used for 3-5 times.
A prevention period: continuously spraying the fertilizer at the field temperature of more than 25 ℃ after 10 am or 4 pm, and spraying the fertilizer once every seven days.
The burn period: when the field temperature is above 30 ℃, spraying once every 5-7 days before 10 am or after 4 pm.
The method comprises the steps of respectively carrying out secondary harvesting on oranges planted in three planting places in a fruit tree maturity period according to maturity, wherein the time interval of the secondary harvesting is 7 days, the harvesting of the three planting places is carried out on the same day, single-plant single harvesting and single-scale yield counting are carried out during harvesting, the average value is obtained after the weight of single harvested fruits and the number of fruits grown in a single plant are counted, and the statistical tables of the weight (g) of single fruits harvested in two times, the number (number) of single-plant fruits and the yield (kg/plant) of the oranges are shown in the table 1 and the table 2 respectively.
TABLE 1 statistical table for first harvest of citrus
TABLE 2 statistical table for second harvest of citrus
The data in tables 1 and 2 show that in two harvesting, compared with the sunscreen agent adopted in the first control group and the clear water adopted in the second control group, the sunscreen cream prepared by the invention has heavier weight of single fruit, higher yield of each citrus and higher fruit yield in terms of the weight of the single fruit, the number of fruits of each fruit tree and the yield of each fruit tree.
The symptoms of sunscald of the citrus comprise: the light receiving surface of the fruit is grey-blue, then the fruit skin expands into yellow-brown patches, the fruit grows and stops, the fruit is rough and hardened, the diseased part is dry or sunken, and when the disease is serious, the fruit skin is necrotic and loses water, the pulp cells shrink, and fruit drop is caused. If the number of the fruits generating the sunscald disease accounts for more than 5% -10% of the total number of the fruits, the sunscald disease orange plants are obtained, the statistic table of the sunscald disease orange is shown in a table 3, and the sunscald disease orange fruits (one or one) in the table 3 are the average value of the number of the fruits generating the sunscald disease symptoms in the sunscald disease orange plants.
TABLE 3 statistical table of orange sunscald
The data in Table 3 show that compared with the sunscreen agent used in the first control group and the clear water used in the second control group, the sun cream prepared by the invention has the sun burn incidence rate of the citrus trees lower than that of the first control group by 2 percent and lower than that of the second control group by 10 percent, and meanwhile, the number of fruits generating sun burn per plant is lower than that of the first control group and the second control group, so that the fruit tree sun cream plays a good role in defending the sun burn on the whole.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The fruit tree sunscreen cream is characterized by comprising the following components in parts by weight:
1-2 parts of lime powder, 1-2 parts of talcum powder, 0.8-1.5 parts of water-soluble chitosan, 0.01-0.03 part of betaine, 0.06-0.2 part of humectant, 0.05-0.3 part of dispersant, 0.2-0.5 part of water-phase emulsifier, 0.2-0.5 part of starch, 0.8-1.5 parts of seaweed extract, 0.3-0.7 part of titanium dioxide, 0.2-0.6 part of chelating agent and 3-4 parts of water.
2. The fruit tree sunscreen cream according to claim 1, which is characterized by comprising the following components in parts by weight:
1.5 parts of lime powder, 1.5 parts of talcum powder, 1.2 parts of water-soluble chitosan, 0.02 part of betaine, 0.1 part of humectant, 0.15 part of dispersant, 0.35 part of water-phase emulsifier, 0.3 part of starch, 1.1 part of seaweed extract, 0.5 part of titanium dioxide, 0.4 part of chelating agent and 3.5 parts of water.
3. The fruit tree sunscreen cream as claimed in claim 1, wherein the humectant is propylene glycol, the dispersant is polyethylene glycol, the titanium dioxide is nano titanium dioxide, and the chelating agent is ethylenediamine tetraacetic acid.
4. The fruit tree sunscreen cream as claimed in claim 1 or claim 2, which is prepared by the following method:
step 1: adding the lime powder, the talcum powder, the water-soluble chitosan, the betaine, the humectant, the dispersant, the water-phase emulsifier and the titanium dioxide in parts by weight into a grinding tank, fully stirring and mixing for 20-30 minutes at normal temperature, and adding the starch, the sodium alginate extracting solution and the water in parts by weight during stirring to prepare a paste base solution;
step 2: standing the pasty base liquid prepared in the step 1 for 30-40 minutes, and then filtering suspended liquid in the pasty base liquid to obtain a paste;
and step 3: pouring the paste prepared in the step 2 into an enamel reaction kettle, adding the chelating agent in parts by weight, carrying out chelation reaction on the paste in the enamel reaction kettle, and preparing a chelate after the chelation reaction;
and 4, step 4: and (4) mixing the chelate prepared in the step (3) and putting the mixture into a centrifugal extractor for extraction for 25-35 minutes to prepare the sunscreen cream.
5. The preparation method of the fruit tree sunscreen cream as claimed in claim 4, wherein the chelating reaction temperature in the step 3 is 70-80 ℃, and the reaction time is 3-4 hours.
6. The method for preparing the fruit tree sunscreen cream as claimed in claim 4, wherein the extraction temperature of the extraction centrifuge in the step 4 is set to 20-40 ℃, the extraction pressure is 15-25Mpa, and the rotation speed of the extraction centrifuge is 2000-3000 r/min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116391549A (en) * | 2023-06-09 | 2023-07-07 | 海南省丹若农业有限责任公司 | Method for preventing and treating solar disease of tropical soft-seed pomegranates |
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