CN110622980A - Compound microcapsule pesticide and preparation method thereof - Google Patents
Compound microcapsule pesticide and preparation method thereof Download PDFInfo
- Publication number
- CN110622980A CN110622980A CN201810648994.6A CN201810648994A CN110622980A CN 110622980 A CN110622980 A CN 110622980A CN 201810648994 A CN201810648994 A CN 201810648994A CN 110622980 A CN110622980 A CN 110622980A
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- dispersant
- water
- microcapsule pesticide
- pesticide
- wall material
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
- A01N25/28—Microcapsules or nanocapsules
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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
-
- 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
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/14—Polymerisation; cross-linking
- B01J13/16—Interfacial polymerisation
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Plant Pathology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a compound microcapsule insecticide and a preparation method thereof in the field of pesticides, wherein the compound microcapsule insecticide comprises the following components in percentage by weight: 5-28% of sucrose ester, 0.5-3% of abamectin, 0.5-3% of emamectin benzoate, 1-6% of a dispersant, 1-10% of a solvent, 1-25% of a wall material and the balance of water. Compared with the prior art, the compound microcapsule pesticide has the advantages that the pest control spectrum is wide, and the pests are difficult to generate drug resistance; long lasting period, simple preparation process, low production cost and the like, meets the requirements of green and environment-friendly pesticides, and is suitable for large-area popularization and application.
Description
Technical Field
The invention relates to the field of pesticides, and particularly relates to a compound microcapsule pesticide and a preparation method thereof.
Background
China is a big agricultural country, in particular to a big producing country of crops such as wheat, cotton, tobacco leaves and the like, and the economic loss caused by diseases and insect pests is huge every year. For a long time, the pesticide production formulations in China mainly take the traditional formulations such as missible oil, powder and wettable powder. The emulsifiable concentrate preparation contains a large amount of organic solvent to pollute the environment, and powder and the like are easy to generate dust pollution in the production and processing process.
The pesticide microcapsule takes a high molecular material as a capsule wall or a capsule membrane, and pesticide active substances are wrapped by a chemical, physical or physical chemical method to form a microcapsule with a semipermeable capsule membrane, which is one of the most promising new formulations of the current pesticide, and has the characteristics of long lasting time, little environmental pollution, low toxicity to human bodies, good stability of active ingredients, difficult rain wash and the like.
Sucrose ester is a short name for sucrose fatty acid ester and is formed by esterifying one or more hydroxyl groups of sucrose with fatty acid or aromatic acid. Sucrose ester can cause the involucra of pests to fall off, dehydrate and die, and the action mechanism of the sucrose ester on the pests is not completely clear up to now.
The emamectin benzoate is a structural modification product of agricultural antibiotic abamectin B1, and has stomach toxicity and certain contact poisoning effect. The mechanism of action is to enhance the action of neurotransmitters such as glutamate and Y-aminobutyric acid, thereby allowing a large amount of chloride ions to enter nerve cells, causing cell function to be lost, disturbing nerve conduction, and allowing larvae to stop feeding soon after contacting the agent, resulting in irreversible paralysis. The agent can penetrate into the epidermis of target crops to form an effective storage layer, and has long-term drug effect. Meanwhile, the dosage is small, and the degradation is easy, so that the environment is not polluted and has no residue. Research tests show that the emamectin benzoate has good effect at very low dosage, does not harm beneficial insects in the process of controlling pests, and is highly safe to crops. The emamectin benzoate is an efficient, high-selectivity, green, environment-friendly and biological insecticide.
The abamectin has contact killing and stomach poisoning effects on insects and mites, has weak fumigating effect and no systemic action, has strong osmosis effect on leaves, can kill pests under epidermis, has long residual effect period, has an action mechanism different from that of a common pesticide, interferes with neurophysiological activity, stimulates and releases Y-aminobutyric acid, has an inhibition effect on nerve conduction of arthropods, and has little damage to beneficial insects. The formulation mainly takes missible oil as a main component, and the long-term use of a single dose of the abamectin easily causes the resistance of pests to be increased continuously.
At present, no report of a microcapsule pesticide compounded by sucrose ester, emamectin benzoate and abamectin is found.
Disclosure of Invention
The invention aims to provide a compound microcapsule pesticide which has a wide pest control spectrum, is difficult to generate drug resistance for pests, is safe and environment-friendly, and a preparation method thereof.
The purpose of the invention is realized as follows: a compound microcapsule pesticide comprises the following components in percentage by weight: 5-28% of sucrose ester, 0.5-3% of abamectin, 0.5-3% of emamectin benzoate, 1-6% of a dispersant, 1-10% of a solvent, 1-25% of a wall material and the balance of water. Compared with the prior art, the compound microcapsule pesticide has the advantages that the pest control spectrum is wide, and the pests are difficult to generate drug resistance; long lasting period, simple preparation process, low production cost and the like, meets the requirements of green and environment-friendly pesticides, and is suitable for large-area popularization and application.
As a further improvement of the invention, the weight percentage of each component is as follows: 18% of sucrose ester, 1.5% of abamectin, 1.5% of emamectin benzoate, 3% of a dispersant, 5% of a solvent, 16% of a wall material and the balance of water.
As a further improvement of the invention, the sucrose ester is one or two of sucrose heptanoate or sucrose octanoate; the dispersant is calcium lignosulphonate, sodium dodecyl sulfate or polyacrylic acid; the solvent is toluene; the wall material is a polybasic acyl chloride-polyamine system, the polybasic acyl chloride is one of paraphthaloyl chloride, phthaloyl chloride and adipoyl chloride, and the polyamine is ethylenediamine, methyldiamine or triethyltetramine; the mass of the polybasic acyl chloride and the polybasic amine is 0.6-1.0: 1, and the water is deionized water or distilled water.
The preparation method of the compound microcapsule pesticide comprises the following steps: adding water into a dispersant to prepare a dispersant aqueous solution with the mass concentration of 3-8%, adding sucrose ester into the dispersant aqueous solution according to a formula, uniformly mixing to obtain a continuous phase, fully dissolving abamectin and emamectin benzoate in toluene to obtain an organic phase, adding the organic phase into the continuous phase, heating to 45-50 ℃, adding a wall material at a constant temperature, carrying out interfacial polymerization reaction under the stirring condition, and continuously stirring at the rotating speed of 500-1000 r/min for 25-35 min to obtain the compound microcapsule pesticide.
As a further improvement of the preparation method of the compound microcapsule pesticide, the interfacial polymerization reaction is carried out under the stirring condition, namely the interfacial polymerization reaction is carried out under the stirring at the rotating speed of 1600-2800 r/min for 35-60 min.
Detailed Description
Example 1
The compound microcapsule pesticide of the embodiment comprises the following components in percentage by weight: 5% of sucrose heptanoate, 3% of abamectin, 3% of emamectin benzoate, 1% of calcium lignosulfonate, 1% of toluene, 20% of wall material and the balance of deionized water. The preparation method of the compound microcapsule pesticide of the embodiment comprises the following steps: adding water into calcium lignosulphonate to prepare a calcium lignosulphonate aqueous solution with the mass concentration of 3-8%, adding sucrose heptanoate into the calcium lignosulphonate aqueous solution according to a formula, uniformly mixing to obtain a continuous phase, fully dissolving abamectin and emamectin benzoate in toluene to obtain an organic phase, adding the organic phase into the continuous phase, heating to 45 ℃, adding a wall material at a constant temperature, stirring at 1600 rotation speed for 35min to perform an interfacial polymerization reaction, and then continuously stirring at 500r/min for 25min to obtain the compound microcapsule pesticide.
Example 2
The compound microcapsule pesticide of the embodiment comprises the following components in percentage by weight: 18% of sucrose heptanoate, 1.5% of abamectin, 1.5% of emamectin benzoate, 3% of sodium dodecyl sulfate, 5% of toluene, 16% of wall material and the balance of deionized water. The preparation method of the compound microcapsule pesticide of the embodiment comprises the following steps: adding water into sodium dodecyl sulfate to prepare a sodium dodecyl sulfate aqueous solution with the mass concentration of 3-8%, adding sucrose heptanoate into the sodium dodecyl sulfate aqueous solution according to a formula, uniformly mixing to obtain a continuous phase, fully dissolving abamectin and emamectin benzoate in toluene to obtain an organic phase, adding the organic phase into the continuous phase, heating to 45 ℃, adding a wall material at a constant temperature, stirring at 1600 rpm for 35min to perform an interfacial polymerization reaction, and then continuously stirring at 500r/min for 25min to obtain the compound microcapsule pesticide.
Example 3
The compound microcapsule pesticide of the embodiment comprises the following components in percentage by weight: 16% of sucrose caprylate, 2% of abamectin, 2% of emamectin benzoate, 4% of polyacrylic acid, 5% of toluene, 16% of wall material and the balance of deionized water. The preparation method of the compound microcapsule pesticide of the embodiment comprises the following steps: adding water into polyacrylic acid to prepare a polyacrylic acid aqueous solution with the mass concentration of 3-8%, adding sucrose caprylate into the polyacrylic acid aqueous solution according to a formula, uniformly mixing to obtain a continuous phase, fully dissolving abamectin and emamectin benzoate in toluene to obtain an organic phase, adding the organic phase into the continuous phase, heating to 50 ℃, adding a wall material at a constant temperature, stirring at a rotating speed of 2200 for 50min to perform an interfacial polymerization reaction, and then continuously stirring at a rotating speed of 1000r/min for 35min to obtain the compound microcapsule pesticide.
Example 4
The compound microcapsule pesticide of the embodiment comprises the following components in percentage by weight: 28% of sucrose caprylate, 0.5% of abamectin, 0.5% of emamectin benzoate, 6% of polyacrylic acid, 10% of toluene, 25% of wall material and the balance of deionized water. The preparation method of the compound microcapsule pesticide of the embodiment comprises the following steps: adding water into polyacrylic acid to prepare a polyacrylic acid aqueous solution with the mass concentration of 3-8%, adding sucrose caprylate into the polyacrylic acid aqueous solution according to a formula, uniformly mixing to obtain a continuous phase, fully dissolving abamectin and emamectin benzoate in toluene to obtain an organic phase, adding the organic phase into the continuous phase, heating to 50 ℃, adding a wall material at a constant temperature, stirring at 2800 rotation speed for 60min to perform an interfacial polymerization reaction, and then continuously stirring at 1000r/min for 35min to obtain the compound microcapsule pesticide.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (5)
1. A compound microcapsule pesticide is characterized in that: the weight percentages of the components are as follows: 5-28% of sucrose ester, 0.5-3% of abamectin, 0.5-3% of emamectin benzoate, 1-6% of a dispersant, 1-10% of a solvent, 1-25% of a wall material and the balance of water.
2. The built microcapsule pesticide as set forth in claim 1, wherein: the weight percentages of the components are as follows: 18% of sucrose ester, 1.5% of abamectin, 1.5% of emamectin benzoate, 3% of a dispersant, 5% of a solvent, 16% of a wall material and the balance of water.
3. The built microcapsule pesticide according to claim 1 or 2, wherein: the sucrose ester is one or two of sucrose heptanoate or sucrose caprylate; the dispersant is calcium lignosulphonate, sodium dodecyl sulfate or polyacrylic acid; the solvent is toluene; the wall material is a polybasic acyl chloride-polyamine system, the polybasic acyl chloride is one of paraphthaloyl chloride, phthaloyl chloride and adipoyl chloride, and the polyamine is ethylenediamine, methyldiamine or triethyltetramine; the mass of the polybasic acyl chloride and the polybasic amine is 0.6-1.0: 1, and the water is deionized water or distilled water.
4. The preparation method of the built microcapsule pesticide as set forth in any one of claims 1 to 3, characterized in that: the method comprises the following steps: adding water into a dispersant to prepare a dispersant aqueous solution with the mass concentration of 3-8%, adding sucrose ester into the dispersant aqueous solution according to a formula, uniformly mixing to obtain a continuous phase, fully dissolving abamectin and emamectin benzoate in toluene to obtain an organic phase, adding the organic phase into the continuous phase, heating to 45-50 ℃, adding a wall material at a constant temperature, carrying out interfacial polymerization reaction under the stirring condition, and continuously stirring at the rotating speed of 500-1000 r/min for 25-35 min to obtain the compound microcapsule pesticide.
5. The preparation method of the built microcapsule pesticide as set forth in claim 4, characterized in that: the interfacial polymerization reaction is carried out under the stirring condition, namely the interfacial polymerization reaction is carried out by stirring at the rotating speed of 1600-2800 r/min for 35-60 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810648994.6A CN110622980A (en) | 2018-06-22 | 2018-06-22 | Compound microcapsule pesticide and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810648994.6A CN110622980A (en) | 2018-06-22 | 2018-06-22 | Compound microcapsule pesticide and preparation method thereof |
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| CN110622980A true CN110622980A (en) | 2019-12-31 |
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| CN201810648994.6A Pending CN110622980A (en) | 2018-06-22 | 2018-06-22 | Compound microcapsule pesticide and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111363522A (en) * | 2020-04-01 | 2020-07-03 | 黄寅福 | Multilayer heat-storage heat-preservation microcapsule applied to fabric and preparation method thereof |
| CN111560258A (en) * | 2020-05-27 | 2020-08-21 | 江苏集萃智能液晶科技有限公司 | Temperature-sensitive color developing liquid crystal microcapsule and preparation method thereof |
-
2018
- 2018-06-22 CN CN201810648994.6A patent/CN110622980A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111363522A (en) * | 2020-04-01 | 2020-07-03 | 黄寅福 | Multilayer heat-storage heat-preservation microcapsule applied to fabric and preparation method thereof |
| CN111363522B (en) * | 2020-04-01 | 2021-06-01 | 迈科凯普(杭州)生物科技有限公司 | Multilayer heat-storage heat-preservation microcapsule applied to fabric and preparation method thereof |
| CN111560258A (en) * | 2020-05-27 | 2020-08-21 | 江苏集萃智能液晶科技有限公司 | Temperature-sensitive color developing liquid crystal microcapsule and preparation method thereof |
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Application publication date: 20191231 |