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Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide and preparation method thereof

A slow-release microcapsule and abamectin technology, applied in the direction of pesticides, botanical equipment and methods, biocides, etc., can solve the problems of reducing the number of applications and the amount of application, so as to realize the utilization of waste and reduce the toxicity of humans and animals , the effect of environmental protection

Active Publication Date: 2011-12-14
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Based on the above-mentioned existing technology and resource background, we use environmental pollutants cyanobacteria as pesticide carriers to improve the shortcoming of abamectin’s rapid decomposition under ultraviolet light, reduce the number of applications and the amount of application, improve insecticidal efficiency, and reduce the impact of abamectin on It is very necessary to invent a kind of abamectin-cyanobacterium anti-ultraviolet sustained-release microcapsule insecticide and its preparation method because of human and animal toxicity

Method used

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  • Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide and preparation method thereof
  • Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide and preparation method thereof
  • Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide and preparation method thereof

Examples

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Effect test

Embodiment 1

[0036] Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide, comprising the steps of:

[0037] 1) Put 4 parts of abamectin into 100 parts of organic solvent in the reactor, and stir until completely dissolved. Then add 20 parts of dried cyanobacteria powder, shake and soak in an air bath shaker at a constant temperature of 25°C for 24 hours;

[0038] 2) Add 2 parts of easily degradable polymers into the above reactor, stir and disperse evenly;

[0039] 3) Pour 3 parts of surfactant into 100 parts of double distilled water, and stir until completely dissolved;

[0040] 4) After mixing the product of step 2) with the product of step 3), first use a high-shear emulsifier to stir at a speed of 12000rpm for 15 minutes, evaporate the organic solvent at a temperature of 40°C, solidify into capsules, filter out water, and dry , that is, Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide.

Embodiment 2

[0042] The preparation technology of Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide comprises the following steps:

[0043] 1) Stir 5 parts of abamectin and 100 parts of organic solvent in the reactor until completely dissolved. Then add 25 parts of dried cyanobacteria powder, shake and soak at a constant temperature of 30°C for 24 hours;

[0044] 2) Add 3 parts of easily degradable polymers into the above reactor, stir and disperse evenly;

[0045] 3) Pour 3 parts of surfactant into 150 parts of double distilled water, and stir until completely dissolved;

[0046] 4) After mixing the product of step 2) with the product of step 3), first stir with a high-shear emulsifier at a speed of 10,000rpm for 15 minutes, evaporate the organic solvent at a temperature of 50°C, solidify into capsules, filter out water, and dry , that is, Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide.

Embodiment 3

[0048] The preparation technology of Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide comprises the following steps:

[0049] 1) Dissolve 2.5 parts of abamectin in 35 parts of organic solvent in a reactor and stir until completely dissolved. Then add 15 parts of dried cyanobacteria powder, shake and soak in a constant temperature air bath shaker at 25°C for 20 hours;

[0050] 2) Add 1.5 parts of easily degradable polymers into the above reactor, and stir until completely dissolved;

[0051] 3) Pour 2 parts of surfactant into 100 parts of double distilled water, and stir until completely dissolved;

[0052] 4) After mixing the product of step 2) with the product of step 3), first stir with a high-shear emulsifier at a speed of 10,000rpm for 15 minutes, evaporate the organic solvent at a temperature of 55°C, solidify into capsules, filter out water, and dry , that is, Abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule ins...

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Abstract

The invention discloses an abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide and a preparation method thereof. In parts by weight, the components and contents thereof are: 0.5-50 parts of abamectin, 5 parts of blue-green algae powder -50 parts, surfactant 1-20 parts, easily degradable polymer 0.5-20 parts. The present invention utilizes blue-green algae as a pesticide carrier to adsorb abamectin, and relies on its own natural properties to delay the decomposition of abamectin due to ultraviolet light, and can be used as an organic fertilizer to increase production of crops to realize waste utilization of pollutants; secondly, using The degradable polymer is used as the coating agent, which is beneficial to environmental protection. Thirdly, the controlled release of abamectin is achieved by using the slow-release technology, which reduces the toxicity of abamectin to humans and animals.

Description

[0001] technical field [0002] The invention relates to an abamectin insecticide, in particular to an abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide, and a preparation method of the abamectin insecticide. Belonging to the field of abamectin pesticides. [0003] Background technique [0004] Abamectin, English name Avermectins, its structural formula is as follows: [0005] [0006] Its molecular formula is B 1b C 47 h 70 o 14 , B 1a C 48 h 72 o 14 ;Molecular weight is B 1b , 858.1;B 1a , 872.1; Melting point: 150-155°C; Vapor pressure (20°C): <2×10 -4 mPa; stability: good stability in aqueous solution (25°C) with a pH value of 5-9; sensitive to strong acid and strong alkali; it will first transform into 8,9-Z isomer under ultraviolet light irradiation, and then degrade to unknown product. [0007] Abamectin is a new type of antibiotic with the characteristics of novel structure and dual-use for agriculture and livesto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/08A01N25/28A01N25/00A01N43/90A01P7/04
Inventor 任天瑞侯宏伟王全喜燕云峰张晓敏
Owner SHANGHAI NORMAL UNIVERSITY
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