Methyl-amino-ivermectin water suspension nano capsule prepn and its preparing method

A technology of emamectin and nanocapsules, applied in botany equipment and methods, biocides, animal repellents, etc., can solve problems such as waste of resources, waste of decomposition, pesticide residues, etc., and achieve ecological benefits Effects of environment, improved utilization, and improved stability

Inactive Publication Date: 2004-04-28
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Contains a large amount of organic solvents, such as toluene, xylene, etc., causing thousands of tons of organic solvents to be discharged into nature every year, wasting resources and seriously polluting the environment
[0004] 2. When used, it needs to be diluted with water to form an emulsion. The active ingredients are micron-scale dispersed. The dispersibility of the active ingredients is poor and the effective utilization rate is low, resulting in a large amount of pesticides, resulting in increased agricultural costs and a large number of pesticide residues, which seriously affects the quality of agricultural products.
[0005] 3. The active ingredients

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0055] Example 1:

[0056] 0.1g ammonium persulfate is dissolved in 20g water (divided into two parts by 4: 1), set aside for use; 0.5g methylamino abamectin is dissolved in the mixed monomer of 7g styrene, 8g butyl acrylate, 0.2g acrylic acid In; 6g OP-40, 1g sodium lauryl sulfate are dissolved in 50g 2% polyvinyl alcohol aqueous solution, put into a container with stirring, under stirring, add the mixed monohydrate that is dissolved with methylamino abamectin. body, dispersed into an emulsion, and placed in a reaction vessel. Heating and keeping the temperature at 70±2°C, adding the first part of the initiator, reacting for 6 hours, and keeping the temperature for 1 hour to obtain the seed emulsion; dropwise add 1.5g styrene, 1.5g butyl acrylate, 2g toluene diisocyanate mixed monomer and The second part of the initiator was added dropwise for 1 hour, kept for 2 hours, and cooled; the auxiliary agent was added, and the material was discharged. The content of methylamino aba...

Example Embodiment

[0057]Embodiment 2:

[0058] 0.1g potassium persulfate is dissolved in 10g water (divided into two parts by 4: 1), 1g acrylamide is dissolved in 10g water, for use; 1g methylamino avermectin is dissolved in 4g ethyl acrylate 7g butyl acrylate In the mixed monomer; dissolve 5g OP-40, 4g sodium lauryl sulfate, and 4g sodium polymethacrylate in 60g water, put it into a container with stirring, and add Averbacter methylamino The mixed monomer of the element is dispersed into an emulsion and placed in a reaction vessel. Heating to keep the temperature at 70±2°C, adding the first initiator and acrylamide aqueous solution, reacting for 6 hours, and keeping the temperature for 1 hour to obtain a seed emulsion; dropwise add 1g ethyl acrylate, 1g butyl acrylate, 2g 4,4' - Diphenylmethane diisocyanate mixed monomer, dropwise added for 1 hour, kept for 2 hours, cooled down; added auxiliary agent and discharged. The content of methylamino abamectin in the product was 0.9%.

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PUM

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Abstract

The present invention discloses a water suspended nano methyl-amino-Ivermectin capsule preparation prepared via emulsion polymerization process. It has capsule shell of styrene, isocyanate, acrylate and methacrylate copolymer, and core comprising biologically originated pesticide and animal remedy methyl-amino-Ivermectin as effective component; contains methyl-amino-Ivermectin 0.2-2 wt%, capsule shell 5-30 wt%, additive 10-35 wt% and water in proper proportion. The nano capsule is disersive spherical particle of size smaller than 100 nm. Compared with traditional pesticide preparation forms, the present invention has the features of water based solvent, nano level dispersive effective component, high stability, etc. and may be used in killing animalí»s parasite and various pests of fruit tree, vegetable, flower, cotton, tobacco, etc.

Description

technical field [0001] The invention relates to a water-suspended nanocapsule of emamectin, which belongs to the formulation technology of biological source pesticides and veterinary drugs. Background technique [0002] Emamectin is a product obtained after chemical transformation of abamectin, and it is a semi-synthetic antibiotic insecticide pesticide. The efficacy against lepidopteran pests is significantly improved and the toxicity is lower than that of abamectin, and it is a new type of biological pesticide. Emamectin benzoate insecticide has the characteristics of super high efficiency, non-toxic, pollution-free, double insect lethality, and less affected by environmental factors. Compared with other series of Abamectin products, the activity against Lepidopteran pests that are difficult in agriculture has increased by 1-3 orders of magnitude, and can be used on economic crops such as vegetables, tobacco, and tea. The dosage is about 2-grams per hectare, which has a ...

Claims

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Application Information

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IPC IPC(8): A01N25/28A01N43/90
Inventor 尚青郑和堂祁同生
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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