Pesticide protection spraying liquid for pesticide bottle and preparation process of pesticide protection spraying liquid

Abstract

The invention provides medicine protection spraying liquid for a pesticide bottle and a preparation process of the medicine protection spraying liquid. The medicine protection spraying liquid for the pesticide bottle is prepared from the following raw material medicines in parts by weight: 30.0 to 35.0 parts of acrylic resin, 5.0 to 7.0 parts of nano silicon dioxide, 1.5 to 2.5 parts of a surfactant, 2.0 to 3.0 parts of a thickening agent, 3.0 to 4.5 parts of an anti-freezing agent, 0.5 to 1.0 part of a preservative, 0.8 to 1.2 parts of an antioxidant, 1.0 to 2.0 parts of an ultraviolet light absorber and 40.0 to 50.0 parts of deionized water. The service life of the pesticide bottle can be prolonged, and the stability and safety of pesticide are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticide bottle protection, and more specifically, to a pesticide bottle drug protection spray liquid and a preparation process thereof. Background Art

[0002] Existing pesticide bottle protection technologies mainly rely on traditional coatings and protective materials, which often have problems such as insufficient protective performance, poor durability, and harm to the environment and human body. During the use of pesticide bottles, due to the chemical properties of the pesticides themselves and the influence of the external environment, such as ultraviolet radiation, temperature changes, humidity, etc., the surface of the pesticide bottles is easily corroded and worn, resulting in leakage and failure of the pesticides.

[0003] In addition, traditional protective materials may require the use of organic solvents during the preparation process, which not only pollutes the environment but also poses a threat to the health of operators. During the transportation and storage of pesticide bottles, the uneven or weak protective layer can easily lead to the breakage and damage of pesticide bottles. These problems not only affect the effective use of pesticides, but also pose potential hazards to agricultural production and the ecological environment.

[0004] In the process of implementing the embodiments of the present invention, the inventors found that there are at least the following problems or defects in the prior art: the existing pesticide bottle protective materials are insufficient in terms of protective performance, environmental adaptability and environmental friendliness of the preparation process. Summary of the invention

[0005] The invention provides a drug protection spray liquid for a pesticide bottle and a preparation process thereof.

[0006] In a first aspect of the present invention, a pesticide bottle drug protection spray liquid is provided, which is made of the following raw materials in parts by weight:

[0007] 30.0-35.0 parts of acrylic resin, 5.0-7.0 parts of nano silicon dioxide, 1.5-2.5 parts of surfactant, 2.0-3.0 parts of thickener, 3.0-4.5 parts of antifreeze agent, 0.5-1.0 part of preservative, 0.8-1.2 parts of antioxidant, 1.0-2.0 parts of ultraviolet absorber and 40.0-50.0 parts of deionized water.

[0008] Furthermore, the drug protection spray liquid for the pesticide bottle is made of the following raw materials in parts by weight: 30.0 parts of acrylic resin, 5.0 parts of nano-silicon dioxide, 2.0 parts of surfactant, 2.5 parts of thickener, 3.5 parts of antifreeze, 0.8 parts of preservative, 1.0 parts of antioxidant, 1.5 parts of ultraviolet absorber and 45.0 parts of deionized water.

[0009] Furthermore, the drug protection spray liquid for the pesticide bottle is made of the following raw materials in parts by weight: 35.0 parts of acrylic resin, 7.0 parts of nano-silicon dioxide, 2.5 parts of surfactant, 3.0 parts of thickener, 4.0 parts of antifreeze, 1.0 parts of preservative, 1.2 parts of antioxidant, 2.0 parts of ultraviolet absorber and 50.0 parts of deionized water.

[0010] Furthermore, the drug protection spray liquid for the pesticide bottle is made of the following raw materials in parts by weight: 32.5 parts of acrylic resin, 6.0 parts of nano-silicon dioxide, 2.0 parts of surfactant, 2.8 parts of thickener, 3.75 parts of antifreeze, 0.9 parts of preservative, 1.0 parts of antioxidant, 1.75 parts of ultraviolet absorber and 47.5 parts of deionized water.

[0011] Furthermore, the acrylic resin is a combination of one or more of methyl methacrylate, styrene, acrylonitrile, butyl acrylate and butyl methacrylate.

[0012] Furthermore, the acrylic resin is a mixture of methyl methacrylate, styrene and acrylonitrile, and the weights of the methyl methacrylate, styrene and acrylonitrile are equal.

[0013] Furthermore, the acrylic resin is butyl acrylate, and the nano-silicon dioxide is 5.0 parts and the butyl acrylate is 30.0 parts in parts by weight.

[0014] Furthermore, the acrylic resin is butyl methacrylate, and the molecular weight of the butyl methacrylate is less than 100,000.

[0015] In a second aspect of the present invention, a process for preparing a pesticide protection spray liquid for a pesticide bottle is provided, comprising the following steps:

[0016] S1. The nano-silica is ground in a ball mill to a desired particle size, and then surface modified, the modifier is a silane coupling agent, and the treatment time is 2 to 4 hours;

[0017] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed uniformly, and then dried in a vacuum drying oven to a moisture content of less than 1%, the drying temperature is 40 ℃ ~ 50 ℃, and the time is 4 to 6 hours;

[0018] S3. The surfactant and deionized water are mixed and stirred, heated to 60 ℃ ~ 80 ℃, to form an aqueous phase, the stirring speed is 300 ~ 500 rpm, the time is 1 to 2 hours;

[0019] S4. The acrylic resin mixture and the ultraviolet absorber are mixed and stirred to form a resin phase at a stirring speed of 500 to 700 rpm for 2 to 3 hours;

[0020] S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 80 ℃ ~ 100 ℃ for 30 to 60 minutes at a stirring speed of 700 to 900 rpm;

[0021] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 5000 to 7000 rpm for 15 to 30 minutes to form a uniform emulsion;

[0022] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0023] Further, in step S2, the particle size of the acrylic resin mixture is less than 200 mesh, and is dried by a spray drying tower, the drying gas is nitrogen, the drying temperature is 80° C. to 90° C., and the time is 5 to 7 hours to ensure the uniformity and fluidity of the mixture.

[0024] According to the above-mentioned embodiments of the present invention, at least the following beneficial effects are achieved: the drug protection spray liquid of the present invention can form a coating with excellent protective properties through carefully selected and proportioned raw materials, such as acrylic resin, nano-silicon dioxide, surfactants, etc. This coating can not only resist the chemical erosion of pesticides, but also effectively resist the influence of external environmental factors such as ultraviolet rays, temperature changes and humidity, thereby extending the service life of the pesticide bottle. In addition, the preparation process of the spray liquid adopts environmentally friendly surface modification treatment and solvent-free mixing and stirring technology, which can reduce pollution to the environment, while ensuring the uniformity and adhesion of the coating, and improving the overall protective effect of the pesticide bottle.

[0025] Through the preparation process of the present invention, a drug protection spray liquid with stable performance can be prepared, and the spray liquid can provide long-lasting protection in practical applications, reduce damage to pesticide bottles and waste of pesticides. At the same time, due to the use of materials such as nano-silicon dioxide, the coating also has good antifreeze and anti-oxidation properties, so that the pesticide bottle can remain stable under extreme climatic conditions. In addition, no harmful organic solvents are used in the preparation process of the spray liquid, so it is more friendly to the health of operators and the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0027] Figure 1 A schematic flow chart of a process for preparing a drug protective spray liquid for a pesticide bottle provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0028] The principles and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement the present invention, and are not intended to limit the scope of the present invention in any way. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0029] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. All features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive characteristics and / or steps, can be combined in any way, unless otherwise described, and can be replaced by other equivalent or alternative features with similar purposes, that is, unless otherwise described, each feature is only one embodiment in a series of equivalent or similar features.

[0030] Embodiment 1:

[0031] A drug protection spray liquid for pesticide bottles is prepared from the following raw materials in parts by weight: 30.0 parts of acrylic resin, 5.0 parts of nano silicon dioxide, 2.0 parts of surfactant, 2.5 parts of thickener, 3.5 parts of antifreeze, 0.8 parts of preservative, 1.0 parts of antioxidant, 1.5 parts of ultraviolet absorber and 45.0 parts of deionized water.

[0032] The preparation method of this embodiment comprises the following steps:

[0033] S1. The nano-silica was ground to a desired particle size in a ball mill, and then surface-modified, the modifier being a silane coupling agent, and the treatment time was 3 hours;

[0034] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed and then dried in a vacuum oven to a moisture content of less than 1% at a drying temperature of 45 ° C for 5 hours;

[0035] S3. The surfactant and deionized water were mixed and stirred, heated to 70 ° C to form an aqueous phase, and the stirring speed was 400 rpm for 1.5 hours;

[0036] S4. The acrylic resin mixture and the ultraviolet absorber were mixed and stirred to form a resin phase at a stirring speed of 600 rpm for 2.5 hours;

[0037] S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 90 ° C for 45 minutes at a stirring speed of 800 rpm;

[0038] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 6000 rpm for 22.5 minutes to form a uniform emulsion;

[0039] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0040] In this embodiment, the acrylic resin is a mixture of methyl methacrylate, styrene and acrylonitrile, and the weights of the methyl methacrylate, styrene and acrylonitrile are equal. This combination of acrylic resins provides excellent adhesion and chemical corrosion resistance, ensuring that the protective spray liquid of this embodiment forms a uniform and stable protective layer on the surface of the pesticide bottle.

[0041] Experimental data:

[0042] Synthesis method: Follow the above steps S1 to S7.

[0043] Reaction conditions: nano-silica surface modification treatment for 3 hours, acrylic resin mixture vacuum dried at 45°C for 5 hours, water phase heated to 70°C and stirred for 1.5 hours, resin phase stirred for 2.5 hours, final mixing and stirring temperature 90°C, shear speed 6000 rpm, shear time 22.5 minutes.

[0044] Yield: The theoretical yield is 100%, and the actual yield is 97%.

[0045] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of the acrylic resin was 99.0%.

[0046] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors for six months, there is no obvious corrosion and wear on the surface, and the protective effect is significant.

[0047] Embodiment 2:

[0048] A drug protection spray liquid for pesticide bottles is prepared from the following raw materials in parts by weight: 30.0 parts of acrylic resin, 5.0 parts of nano silicon dioxide, 2.0 parts of surfactant, 2.5 parts of thickener, 3.5 parts of antifreeze, 0.8 parts of preservative, 1.0 parts of antioxidant, 1.5 parts of ultraviolet absorber and 45.0 parts of deionized water.

[0049] The preparation method of this embodiment comprises the following steps:

[0050] S1. The nano-silica was ground in a ball mill to a desired particle size, and then surface-modified, the modifier was a silane coupling agent, and the treatment time was 2 hours;

[0051] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed and then dried in a vacuum oven to a moisture content of less than 1% at a drying temperature of 40 ° C for 4 hours;

[0052] S3. The surfactant and deionized water were mixed and stirred, heated to 60 ° C to form an aqueous phase, and the stirring speed was 300 rpm for 1 hour;

[0053] S4. The acrylic resin mixture and the ultraviolet absorber were mixed and stirred to form a resin phase at a stirring speed of 500 rpm for 2 hours;

[0054] S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 80°C for 30 minutes at a stirring speed of 700 rpm;

[0055] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 5000 rpm for 15 minutes to form a uniform emulsion;

[0056] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0057] In this embodiment, the acrylic resin is butyl acrylate, and the molecular weight of this butyl acrylate is less than 100,000, which provides better fluidity and adhesion, ensuring that the protective spray liquid of this embodiment forms a uniform and stable protective layer on the surface of the pesticide bottle.

[0058] Experimental data:

[0059] Synthesis method: Follow the above steps S1 to S7.

[0060] Reaction conditions: nano-silica surface modification treatment for 2 hours, acrylic resin mixture vacuum drying at 40°C for 4 hours, water phase heated to 60°C and stirred for 1 hour, resin phase stirred for 2 hours, final mixing and stirring temperature 80°C, shear speed 5000 rpm, shear time 15 minutes.

[0061] Yield: The theoretical yield is 100%, and the actual yield is 97%.

[0062] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of butyl acrylate was 99.0%.

[0063] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors for six months, there is no obvious corrosion and wear on the surface, and the protective effect is significant.

[0064] Embodiment 3:

[0065] A drug protection spray liquid for pesticide bottles is prepared from the following raw materials in parts by weight: 35.0 parts of acrylic resin, 7.0 parts of nano silicon dioxide, 2.5 parts of surfactant, 3.0 parts of thickener, 4.0 parts of antifreeze, 1.0 parts of preservative, 1.2 parts of antioxidant, 2.0 parts of ultraviolet absorber and 50.0 parts of deionized water.

[0066] The preparation method of this embodiment comprises the following steps:

[0067] S1. The nano-silica was ground in a ball mill to a desired particle size, and then surface-modified, the modifier being a silane coupling agent, and the treatment time was 4 hours;

[0068] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed uniformly and then dried in a vacuum drying oven to a moisture content of less than 1% at a drying temperature of 50 ° C for 6 hours;

[0069] S3. The surfactant and deionized water were mixed and stirred, heated to 80 ° C to form an aqueous phase, and the stirring speed was 500 rpm for 2 hours;

[0070] S4. The acrylic resin mixture and the ultraviolet absorber were mixed and stirred to form a resin phase at a stirring speed of 700 rpm for 3 hours;

[0071] S5. The aqueous phase was slowly poured into the resin phase, and the preservative was added and mixed, and stirred at 100 ° C for 60 minutes at a stirring speed of 900 rpm;

[0072] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 7000 rpm for 30 minutes to form a uniform emulsion;

[0073] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0074] In this embodiment, the acrylic resin is a mixture of methyl methacrylate, styrene and acrylonitrile, and the weights of methyl methacrylate, styrene and acrylonitrile are equal. This combination of resins provides excellent weather resistance and chemical resistance, ensuring that the protective spray liquid of this embodiment forms a strong and durable protective layer on the surface of the pesticide bottle.

[0075] Experimental data:

[0076] Synthesis method: Follow the above steps S1 to S7.

[0077] Reaction conditions: nano-silica surface modification treatment for 4 hours, acrylic resin mixture vacuum drying at 50°C for 6 hours, water phase heated to 80°C and stirred for 2 hours, resin phase stirred for 3 hours, final mixing and stirring temperature of 100°C, shear speed of 7000 rpm, shear time of 30 minutes.

[0078] Yield: The theoretical yield is 100%, and the actual yield is 96%.

[0079] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of the acrylic resin was 99.0%.

[0080] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors under extreme climatic conditions for one year, the surface still maintains good protective performance without obvious corrosion and wear, effectively extending the service life of the pesticide bottles.

[0081] Embodiment 4:

[0082] A drug protection spray liquid for pesticide bottles is prepared from the following raw materials in parts by weight: 32.5 parts of acrylic resin, 6.0 parts of nano silicon dioxide, 2.0 parts of surfactant, 2.8 parts of thickener, 3.75 parts of antifreeze, 0.9 parts of preservative, 1.0 parts of antioxidant, 1.75 parts of ultraviolet absorber and 47.5 parts of deionized water.

[0083] The preparation method of this embodiment comprises the following steps:

[0084] S1. The nano-silica was ground in a ball mill to a desired particle size, and then surface-modified, the modifier was a silane coupling agent, and the treatment time was 3.5 hours;

[0085] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed and then dried in a vacuum oven to a moisture content of less than 1% at a drying temperature of 45 ° C for 5 hours;

[0086] S3. The surfactant and deionized water were mixed and stirred, heated to 70 ° C to form an aqueous phase, and the stirring speed was 400 rpm for 1.5 hours;

[0087] S4. The acrylic resin mixture and the ultraviolet absorber were mixed and stirred to form a resin phase at a stirring speed of 600 rpm for 2.5 hours;

[0088] S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 90 ° C for 45 minutes at a stirring speed of 800 rpm;

[0089] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 6500 rpm for 25 minutes to form a uniform emulsion;

[0090] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0091] In this embodiment, the acrylic resin is a mixture of methyl methacrylate, styrene and acrylonitrile, and the weights of the methyl methacrylate, styrene and acrylonitrile are equal. This combination of resins provides excellent weather resistance and chemical resistance, ensuring that the protective spray liquid of this embodiment forms a strong and durable protective layer on the surface of the pesticide bottle.

[0092] Experimental data:

[0093] Synthesis method: Follow the above steps S1 to S7.

[0094] Reaction conditions: nano-silica surface modification treatment for 3.5 hours, acrylic resin mixture vacuum drying at 45°C for 5 hours, water phase heated to 70°C and stirred for 1.5 hours, resin phase stirred for 2.5 hours, final mixing and stirring temperature 90°C, shear speed 6500 rpm, shear time 25 minutes.

[0095] Yield: The theoretical yield is 100%, and the actual yield is 97%.

[0096] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of the acrylic resin was 99.0%.

[0097] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors under extreme climatic conditions for one year, the surface still maintains good protective performance without obvious corrosion and wear, effectively extending the service life of the pesticide bottles.

[0098] Embodiment 5:

[0099] A drug protection spray liquid for pesticide bottles is prepared from the following raw materials in parts by weight: 30.0 parts of acrylic resin, 5.0 parts of nano silicon dioxide, 2.0 parts of surfactant, 2.5 parts of thickener, 3.5 parts of antifreeze, 0.8 parts of preservative, 1.0 parts of antioxidant, 1.5 parts of ultraviolet absorber and 45.0 parts of deionized water.

[0100] The preparation method of this embodiment comprises the following steps:

[0101] S1. The nano-silica was ground in a ball mill to a desired particle size, and then surface-modified, the modifier was a silane coupling agent, and the treatment time was 2 hours;

[0102] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed and then dried in a vacuum oven to a moisture content of less than 1% at a drying temperature of 40 ° C for 4 hours;

[0103] S3. The surfactant and deionized water were mixed and stirred, heated to 60 ° C to form an aqueous phase, and the stirring speed was 300 rpm for 1 hour;

[0104] S4. The acrylic resin mixture and the ultraviolet absorber were mixed and stirred to form a resin phase at a stirring speed of 500 rpm for 2 hours;

[0105] S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 80°C for 30 minutes at a stirring speed of 700 rpm;

[0106] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 5000 rpm for 15 minutes to form a uniform emulsion;

[0107] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0108] In this embodiment, the acrylic resin is a mixture of methyl methacrylate, styrene and acrylonitrile, and the weights of the methyl methacrylate, styrene and acrylonitrile are equal. This combination of resins provides excellent weather resistance and chemical resistance, ensuring that the protective spray liquid of this embodiment forms a strong and durable protective layer on the surface of the pesticide bottle.

[0109] Experimental data:

[0110] Synthesis method: Follow the above steps S1 to S7.

[0111] Reaction conditions: nano-silica surface modification treatment for 2 hours, acrylic resin mixture vacuum drying at 40°C for 4 hours, water phase heated to 60°C and stirred for 1 hour, resin phase stirred for 2 hours, final mixing and stirring temperature 80°C, shear speed 5000 rpm, shear time 15 minutes.

[0112] Yield: The theoretical yield is 100%, and the actual yield is 97%.

[0113] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of the acrylic resin was 99.0%.

[0114] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors under extreme climatic conditions for one year, the surface still maintains good protective performance without obvious corrosion and wear, effectively extending the service life of the pesticide bottles.

[0115] Embodiment 6:

[0116] A drug protection spray liquid for pesticide bottles is prepared from the following raw materials in parts by weight: 30.0 parts of acrylic resin, 5.0 parts of nano silicon dioxide, 2.0 parts of surfactant, 2.5 parts of thickener, 3.5 parts of antifreeze, 0.8 parts of preservative, 1.0 parts of antioxidant, 1.5 parts of ultraviolet absorber and 45.0 parts of deionized water.

[0117] The preparation method of this embodiment comprises the following steps:

[0118] S1. The nano-silica was ground in a ball mill to a desired particle size, and then surface-modified, the modifier was a silane coupling agent, and the treatment time was 2 hours;

[0119] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed uniformly and then dried in a vacuum drying oven to a moisture content of less than 1% at a drying temperature of 45 ° C for 4 hours;

[0120] S3. The surfactant and deionized water were mixed and stirred, heated to 70 ° C to form an aqueous phase, and the stirring speed was 400 rpm for 1.5 hours;

[0121] S4. The acrylic resin mixture and the ultraviolet absorber were mixed and stirred to form a resin phase at a stirring speed of 600 rpm for 2.5 hours;

[0122] S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 85°C for 45 minutes at a stirring speed of 800 rpm;

[0123] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 6000 rpm for 20 minutes to form a uniform emulsion;

[0124] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0125] In this embodiment, the acrylic resin is a mixture of methyl methacrylate, styrene and acrylonitrile, and the weights of methyl methacrylate, styrene and acrylonitrile are equal. This combination of resins provides excellent weather resistance and chemical resistance, ensuring that the protective spray liquid of this embodiment forms a strong and durable protective layer on the surface of the pesticide bottle.

[0126] Experimental data:

[0127] Synthesis method: Follow the above steps S1 to S7.

[0128] Reaction conditions: nano-silica surface modification treatment for 2 hours, acrylic resin mixture vacuum dried at 45°C for 4 hours, water phase heated to 70°C and stirred for 1.5 hours, resin phase stirred for 2.5 hours, final mixing and stirring temperature of 85°C, shear speed of 6000 rpm, shear time of 20 minutes.

[0129] Yield: The theoretical yield is 100%, and the actual yield is 97%.

[0130] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of the acrylic resin was 99.0%.

[0131] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors under extreme climatic conditions for one year, the surface still maintains good protective performance without obvious corrosion and wear, effectively extending the service life of the pesticide bottles.

[0132] Embodiment 7:

[0133] A drug protection spray liquid for pesticide bottles is prepared from the following raw materials in parts by weight: 30.0 parts of acrylic resin, 5.0 parts of nano silicon dioxide, 2.5 parts of surfactant, 3.0 parts of thickener, 4.0 parts of antifreeze, 1.0 parts of preservative, 1.2 parts of antioxidant, 2.0 parts of ultraviolet absorber and 50.0 parts of deionized water.

[0134] The preparation method of this embodiment comprises the following steps:

[0135] S1. The nano-silica was ground to a desired particle size in a ball mill, and then surface-modified, the modifier being a silane coupling agent, and the treatment time was 3 hours;

[0136] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed and then dried in a vacuum oven to a moisture content of less than 1% at a drying temperature of 50 ° C for 5 hours;

[0137] S3. The surfactant and deionized water were mixed and stirred, heated to 75 ° C to form an aqueous phase, and the stirring speed was 450 rpm for 1.75 hours;

[0138] S4. The acrylic resin mixture and the ultraviolet absorber were mixed and stirred to form a resin phase at a stirring speed of 650 rpm for 2.75 hours;

[0139] S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 95 ° C for 52.5 minutes at a stirring speed of 850 rpm;

[0140] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 6500 rpm for 25 minutes to form a uniform emulsion;

[0141] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0142] In this embodiment, the acrylic resin is butyl acrylate, and by weight, the nano-silica is 5.0 parts and the butyl acrylate is 30.0 parts. This specific ratio provides excellent chemical resistance and UV resistance, ensuring that the protective spray liquid of this embodiment forms a strong and durable protective layer on the surface of the pesticide bottle.

[0143] Experimental data:

[0144] Synthesis method: Follow the above steps S1 to S7.

[0145] Reaction conditions: nano-silica surface modification treatment for 3 hours, acrylic resin mixture vacuum dried at 50°C for 5 hours, water phase heated to 75°C and stirred for 1.75 hours, resin phase stirred for 2.75 hours, final mixing and stirring temperature of 95°C, shear speed of 6500 rpm, shear time of 25 minutes.

[0146] Yield: The theoretical yield is 100%, and the actual yield is 97%.

[0147] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of butyl acrylate was 99.0%.

[0148] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors under extreme climatic conditions for one year, the surface still maintains good protective performance without obvious corrosion and wear, effectively extending the service life of the pesticide bottles.

[0149] Embodiment 8:

[0150] A drug protection spray liquid for pesticide bottles is prepared from the following raw materials in parts by weight: 35.0 parts of acrylic resin, 7.0 parts of nano silicon dioxide, 2.5 parts of surfactant, 3.0 parts of thickener, 4.0 parts of antifreeze, 1.0 parts of preservative, 1.2 parts of antioxidant, 2.0 parts of ultraviolet absorber and 50.0 parts of deionized water.

[0151] The preparation method of this embodiment comprises the following steps:

[0152] S1. The nano-silica was ground in a ball mill to a desired particle size, and then surface-modified, the modifier being a silane coupling agent, and the treatment time was 4 hours;

[0153] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed uniformly and then dried in a vacuum drying oven to a moisture content of less than 1% at a drying temperature of 50 ° C for 6 hours;

[0154] S3. The surfactant and deionized water were mixed and stirred, heated to 80 ° C to form an aqueous phase, and the stirring speed was 500 rpm for 2 hours;

[0155] S4. The acrylic resin mixture and the ultraviolet absorber were mixed and stirred to form a resin phase at a stirring speed of 700 rpm for 3 hours;

[0156] S5. The aqueous phase was slowly poured into the resin phase, and the preservative was added and mixed, and stirred at 100 ° C for 60 minutes at a stirring speed of 900 rpm;

[0157] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 7000 rpm for 30 minutes to form a uniform emulsion;

[0158] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0159] In this embodiment, the acrylic resin is butyl methacrylate, and the molecular weight of the butyl methacrylate is less than 100,000. This low molecular weight acrylic resin provides better fluidity and permeability, ensuring that the protective spray liquid of this embodiment forms a uniform and strongly adherent protective layer on the surface of the pesticide bottle.

[0160] Experimental data:

[0161] Synthesis method: Follow the above steps S1 to S7.

[0162] Reaction conditions: nano-silica surface modification treatment for 4 hours, acrylic resin mixture vacuum drying at 50°C for 6 hours, water phase heated to 80°C and stirred for 2 hours, resin phase stirred for 3 hours, final mixing and stirring temperature of 100°C, shear speed of 7000 rpm, shear time of 30 minutes.

[0163] Yield: The theoretical yield is 100%, and the actual yield is 97%.

[0164] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of butyl methacrylate was 99.0%.

[0165] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors under extreme climatic conditions for one year, the surface still maintains good protective performance without obvious corrosion and wear, effectively extending the service life of the pesticide bottles.

[0166] Embodiment 9:

[0167] like Figure 1 As shown, a method for preparing a drug protective spray liquid for a pesticide bottle is prepared from the following raw materials in parts by weight: 32.5 parts of acrylic resin, 6.0 parts of nano-silicon dioxide, 2.0 parts of surfactant, 2.8 parts of thickener, 3.75 parts of antifreeze, 0.9 parts of preservative, 1.0 parts of antioxidant, 1.75 parts of ultraviolet absorber and 47.5 parts of deionized water.

[0168] The preparation method of this embodiment comprises the following steps:

[0169] S1. The nano-silica is ground in a ball mill to a desired particle size, and then surface modified, the modifier is a silane coupling agent, and the treatment time is 2 to 4 hours;

[0170] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed uniformly, and then dried in a vacuum drying oven to a moisture content of less than 1%, the drying temperature is 40 ℃ ~ 50 ℃, and the time is 4 to 6 hours;

[0171] S3. The surfactant and deionized water are mixed and stirred, heated to 60 ℃ ~ 80 ℃, to form an aqueous phase, the stirring speed is 300 ~ 500 rpm, the time is 1 to 2 hours;

[0172] S4. The acrylic resin mixture and the ultraviolet absorber are mixed and stirred to form a resin phase at a stirring speed of 500 to 700 rpm for 2 to 3 hours;

[0173] S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 80 ℃ ~ 100 ℃ for 30 to 60 minutes at a stirring speed of 700 to 900 rpm;

[0174] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 5000 to 7000 rpm for 15 to 30 minutes to form a uniform emulsion;

[0175] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

[0176] In this embodiment, the acrylic resin is a mixture of methyl methacrylate, styrene and acrylonitrile, and the weights of the methyl methacrylate, styrene and acrylonitrile are equal. This combination of resins provides excellent weather resistance and chemical resistance, ensuring that the protective spray liquid of this embodiment forms a strong and durable protective layer on the surface of the pesticide bottle.

[0177] Experimental data:

[0178] Synthesis method: Follow the above steps S1 to S7.

[0179] Reaction conditions: nano-silica surface modification treatment for 3 hours, acrylic resin mixture vacuum dried at 45°C for 5 hours, water phase heated to 70°C and stirred for 1.5 hours, resin phase stirred for 2.5 hours, final mixing and stirring temperature 90°C, shear speed 6000 rpm, shear time 22.5 minutes.

[0180] Yield: The theoretical yield is 100%, and the actual yield is 97%.

[0181] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of the acrylic resin was 99.0%.

[0182] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors under extreme climatic conditions for one year, the surface still maintains good protective performance without obvious corrosion and wear, effectively extending the service life of the pesticide bottles.

[0183] Embodiment 10:

[0184] A method for preparing a drug protection spray liquid for a pesticide bottle is prepared from the following raw materials in parts by weight: 30.0 parts of acrylic resin, 5.0 parts of nano silicon dioxide, 2.0 parts of surfactant, 2.5 parts of thickener, 3.5 parts of antifreeze, 0.8 parts of preservative, 1.0 parts of antioxidant, 1.5 parts of ultraviolet absorber and 45.0 parts of deionized water.

[0185] The preparation method of this embodiment comprises the following steps:

[0186] S1. The nano-silica was ground in a ball mill to a desired particle size, and then surface-modified, the modifier was a silane coupling agent, and the treatment time was 2 hours;

[0187] S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed and then dried in a vacuum oven to a moisture content of less than 1% at a drying temperature of 40 ° C for 4 hours;

[0188] S3. The surfactant and deionized water were mixed and stirred, heated to 60 ° C to form an aqueous phase, and the stirring speed was 300 rpm for 1 hour;

[0189] S4. The acrylic resin mixture and the ultraviolet absorber were mixed and stirred to form a resin phase at a stirring speed of 500 rpm for 2 hours;

[0190] S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 80°C for 30 minutes at a stirring speed of 700 rpm;

[0191] S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 5000 rpm for 15 minutes to form a uniform emulsion;

[0192] S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain a final drug protective spray liquid;

[0193] S8. In step S2, the particle size of the acrylic resin mixture is less than 200 mesh, and is dried by a spray drying tower, the drying gas is nitrogen, the drying temperature is 80°C to 90°C, preferably 85°C, and the time is 5 to 7 hours, preferably 6 hours, to ensure the uniformity and fluidity of the mixture.

[0194] In this embodiment, by adding a spray drying process in step S2, the particle size of the acrylic resin mixture is further controlled, and the drying under nitrogen protection avoids the decomposition of heat-sensitive components, thereby improving the quality and stability of the drug protective spray liquid.

[0195] Experimental data:

[0196] Synthesis method: Follow the above steps S1 to S8.

[0197] Reaction conditions: nano-silica surface modification treatment for 2 hours, acrylic resin mixture vacuum drying at 40°C for 4 hours, spray drying at 85°C for 6 hours, water phase heated to 60°C and stirred for 1 hour, resin phase stirred for 2 hours, final mixing and stirring temperature of 80°C, shear speed of 5000 rpm, shear time of 15 minutes.

[0198] Yield: The theoretical yield is 100%, and the actual yield is 97%.

[0199] Purity: According to high performance liquid chromatography (HPLC) analysis, the purity of the acrylic resin was 99.0%.

[0200] Uses and effects: This drug protective spray liquid is suitable for the surface protection of various pesticide bottles. Experiments show that after the sprayed pesticide bottles are stored outdoors under extreme climatic conditions for one year, the surface still maintains good protective performance without obvious corrosion and wear, effectively extending the service life of the pesticide bottles.

[0201] Comparative Example 1

[0202] This comparative example is a pesticide bottle protective spray liquid, which is prepared from the following raw materials in parts by weight:

[0203] 25.0 parts of acrylic resin, 5.0 parts of nano silicon dioxide, 1.0 parts of surfactant, 2.0 parts of thickener, 3.0 parts of antifreeze agent, 0.5 parts of preservative, 0.5 parts of antioxidant, 1.0 parts of ultraviolet absorber and 40.0 parts of deionized water;

[0204] The preparation method of the above pesticide bottle protective spray liquid comprises the following steps:

[0205] (a) mixing acrylic resin, thickener, antifreeze agent and antioxidant uniformly, and then stirring at room temperature until uniform;

[0206] (b) mixing and stirring the surfactant and deionized water, and heating to room temperature to form an aqueous phase;

[0207] (c) The uniformly mixed powder is mixed with water and stirred briefly to obtain the pesticide bottle protective spray liquid.

[0208] Comparative Example 2

[0209] This comparative example is a pesticide bottle protective spray liquid, which is prepared from the following raw materials in parts by weight:

[0210] 40.0 parts of acrylic resin, 10.0 parts of nano silicon dioxide, 3.0 parts of surfactant, 4.0 parts of thickener, 5.0 parts of antifreeze agent, 1.5 parts of preservative, 1.5 parts of antioxidant, 3.0 parts of ultraviolet absorber and 60.0 parts of deionized water;

[0211] The preparation method of the above pesticide bottle protective spray liquid comprises the following steps:

[0212] (a) mixing acrylic resin, thickener, antifreeze agent and antioxidant uniformly, and then stirring at room temperature until uniform;

[0213] (b) mixing and stirring the surfactant and deionized water, and heating to room temperature to form an aqueous phase;

[0214] (c) The uniformly mixed powder is mixed with water and stirred briefly to obtain the pesticide bottle protective spray liquid.

[0215] Experimental example

[0216] Obtain the pesticide bottle protective spray liquids prepared in Example 9 and Comparative Examples 1-2 respectively;

[0217] The pesticide bottle protective spray liquid was used to spray pesticide bottles stored outdoors to test its protective effect; among them, 63 pesticide bottles were treated with the spray liquid of Example 9, 41 pesticide bottles were treated with the spray liquid of Comparative Example 1, and 36 pesticide bottles were treated with the spray liquid of Comparative Example 2;

[0218] Treatment method:

[0219] Use spraying equipment to evenly spray the protective spray liquid on the surface of the pesticide bottle and wait for it to dry naturally;

[0220] Evaluation method:

[0221] Observe and record the corrosion and wear of pesticide bottles after 6 months of outdoor storage;

[0222] Evaluation criteria:

[0223] Excellent: no corrosion and wear on the surface;

[0224] Good: Slight corrosion or wear on the surface;

[0225] General: The surface has moderate corrosion or wear;

[0226] Poor: The surface is severely corroded or worn.

[0227] The statistical results are shown in Tables 1 to 3:

[0228] Table 1 Statistics on the protective effect of pesticide bottles

[0229] Group excellent good generally Difference Example 9 58 5 0 0 Comparative Example 1 20 15 5 1 Comparative Example 2 15 12 8 1

[0230] Table 2 Pesticide bottle surface condition rating

[0231]

[0232]

[0233] Table 3 Statistics on the duration of protective performance of pesticide bottles

[0234] Group Duration of protective effect (months) Example 9 12 Example 9 10 Example 9 9 Example 9 8 Comparative Example 1 6 Comparative Example 1 5 Comparative Example 1 4 Comparative Example 1 3 Comparative Example 2 7 Comparative Example 2 6 Comparative Example 2 5 Comparative Example 2 4

[0235] From Tables 1 to 3, we can see that:

[0236] The pesticide bottle protective spray liquid prepared by the technical solution of the present application is superior to Comparative Examples 1 and 2 in terms of protective effect, surface condition score, and duration of protective performance, showing better protective performance and longer service life. The protective spray liquid of Example 9 can maintain excellent protective effects for a longer period of time, while the protective effects of Comparative Examples 1 and 2 decrease rapidly over time. In addition, the protective spray liquid of Example 9 is also significantly higher than that of Comparative Examples 1 and 2 in surface condition score, indicating that it has superior performance in protecting pesticide bottles from corrosion and wear.

[0237] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0238] The above descriptions are only some preferred embodiments of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present invention is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present invention to form a technical solution.

Claims

1. A drug protection spray liquid for pesticide bottles, characterized in that: The invention is prepared from the following raw materials in parts by weight: 30.0-35.0 parts of acrylic resin, 5.0-7.0 parts of nano silicon dioxide, 1.5-2.5 parts of surfactant, 2.0-3.0 parts of thickener, 3.0-4.5 parts of antifreeze agent, 0.5-1.0 part of preservative, 0.8-1.2 parts of antioxidant, 1.0-2.0 parts of ultraviolet absorber and 40.0-50.0 parts of deionized water.

2. The drug protection spray liquid for pesticide bottles according to claim 1, characterized in that: The invention is prepared from the following raw materials in parts by weight: 30.0 parts of acrylic resin, 5.0 parts of nano-silicon dioxide, 2.0 parts of surfactant, 2.5 parts of thickener, 3.5 parts of antifreeze agent, 0.8 parts of preservative, 1.0 parts of antioxidant, 1.5 parts of ultraviolet absorber and 45.0 parts of deionized water.

3. The drug protection spray liquid for pesticide bottles according to claim 1, characterized in that: The invention is prepared from the following raw materials in parts by weight: 35.0 parts of acrylic resin, 7.0 parts of nano-silicon dioxide, 2.5 parts of surfactant, 3.0 parts of thickener, 4.0 parts of antifreeze agent, 1.0 part of preservative, 1.2 parts of antioxidant, 2.0 parts of ultraviolet absorber and 50.0 parts of deionized water.

4. The drug protection spray liquid for pesticide bottles according to claim 1, characterized in that: The invention is prepared from the following raw materials in parts by weight: 32.5 parts of acrylic resin, 6.0 parts of nano silicon dioxide, 2.0 parts of surfactant, 2.8 parts of thickener, 3.75 parts of antifreeze, 0.9 parts of preservative, 1.0 parts of antioxidant, 1.75 parts of ultraviolet absorber and 47.5 parts of deionized water.

5. The drug protection spray liquid for pesticide bottles according to claim 1, characterized in that: The acrylic resin is a combination of one or more of methyl methacrylate, styrene, acrylonitrile, butyl acrylate and butyl methacrylate.

6. The drug protection spray liquid for pesticide bottles according to claim 5, characterized in that: The acrylic resin is prepared by mixing methyl methacrylate, styrene and acrylonitrile, and the weights of the methyl methacrylate, styrene and acrylonitrile are equal.

7. The drug protection spray liquid for pesticide bottles according to claim 5, characterized in that: The acrylic resin is butyl acrylate, and by weight, the nano silicon dioxide is 5.0 parts and the butyl acrylate is 30.0 parts.

8. The drug protection spray liquid for pesticide bottles according to claim 5, characterized in that: The acrylic resin is butyl methacrylate, and the molecular weight of the butyl methacrylate is less than 100,000.

9. A process for preparing the drug protection spray liquid for pesticide bottles according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. The nano-silica is ground in a ball mill to a desired particle size, and then surface modified, the modifier is a silane coupling agent, and the treatment time is 2 to 4 hours; S2. The acrylic resin, thickener, antifreeze agent and antioxidant are mixed uniformly, and then dried in a vacuum drying oven until the moisture content is less than 1%, the drying temperature is 40 ℃ ~ 50 ℃, and the time is 4 to 6 hours; S3. The surfactant and deionized water are mixed and stirred, heated to 60 ℃ ~ 80 ℃, to form an aqueous phase, the stirring speed is 300 ~ 500 rpm, the time is 1 to 2 hours; S4. The acrylic resin mixture and the ultraviolet absorber are mixed and stirred to form a resin phase at a stirring speed of 500 to 700 rpm for 2 to 3 hours; S5. The aqueous phase is slowly poured into the resin phase, and the preservative is added and mixed and stirred, and stirred at 80 ℃ ~ 100 ℃ for 30 to 60 minutes at a stirring speed of 700 to 900 rpm; S6. The resulting mixture was sheared in a high-speed shearing machine at a shear rate of 5000 to 7000 rpm for 15 to 30 minutes to form a uniform emulsion; S7. Finally, the emulsion is cooled to room temperature and filtered through a 0.2 μm microporous filter membrane to obtain the final drug protective spray liquid.

10. The process for preparing the drug protection spray liquid for pesticide bottles according to claim 9, characterized in that: In step S2, the particle size of the acrylic resin mixture is less than 200 meshes, and it is dried by a spray drying tower, the drying gas is nitrogen, the drying temperature is 80° C. to 90° C., and the time is 5 to 7 hours to ensure the uniformity and fluidity of the mixture.

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