Avermectin-cyanobacteria anti-ultraviolet sustained-release microcapsule water dispersible granules, and preparation method thereof

A technology of slow-release microcapsules and abamectin, which is applied in botany equipment and methods, insecticides, acaricides, etc., can solve the problems of reducing application times and application amounts, and achieve the goal of reducing toxicity and facilitating production Effect

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

[0010] 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-cyanobacteria anti-ultraviolet sustained-release microcapsule insecticide and its preparation method because of human and animal toxicity

Method used

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  • Avermectin-cyanobacteria anti-ultraviolet sustained-release microcapsule water dispersible granules, and preparation method thereof
  • Avermectin-cyanobacteria anti-ultraviolet sustained-release microcapsule water dispersible granules, and preparation method thereof
  • Avermectin-cyanobacteria anti-ultraviolet sustained-release microcapsule water dispersible granules, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) prepare the anti-ultraviolet sustained-release microcapsules of Abamectin-cyanobacteria

[0038] a. Dissolve 10kg of avermectin in 200kg of ethanol in the reactor, add 5kg of dried cyanobacteria powder, shake and soak for 24 hours at 25°C in a constant temperature air bath oscillator;

[0039] Add 2kg of easily degradable polymer methyl cellulose or carboxymethyl cellulose, stir until evenly dispersed and completely dissolved;

[0040]b. 3kg dispersant lignosulfonate is dissolved in 100L double distilled water, and mixed with the product of step a;

[0041] Stir with a high-shear emulsifier at a speed of 12000rpm for 15 minutes, steam the organic solvent at a temperature of 40°C, solidify it into a capsule, filter out the water, and dry it into a powder to obtain the Abamectin-cyanobacteria anti-ultraviolet sustained-release capsule .

[0042] (2) Take 5kg water-insoluble binder bentonite or kaolin, 10kg dispersant lignosulfonate, 5kg wetting agent sodium dodecylb...

Embodiment 2

[0045] (1) prepare the anti-ultraviolet sustained-release microcapsules of Abamectin-cyanobacteria

[0046] a. Dissolve 10kg of abamectin in 200kg of ethanol in the reactor, add 30kg of dried cyanobacteria powder, shake and soak for 24 hours at 25°C in a constant temperature air bath oscillator;

[0047] Add 3kg of easily degradable polymer polyvinyl acetate, stir until it is evenly dispersed and completely dissolved;

[0048] b. Stir 3kg of dispersant Huntsman T-2700 in 100L double distilled water until completely dissolved, and mix with the product of step a;

[0049] Stir with a high-shear emulsifier at a speed of 12000rpm for 15 minutes, steam the organic solvent at a temperature of 40°C, solidify it into a capsule, filter out the water, and dry it into a powder to obtain the Abamectin-cyanobacteria anti-ultraviolet sustained-release capsule .

[0050] (2) Dissolve 5kg of water-soluble binder polyvinyl acetate and polyvinylpyrrolidone (the weight ratio of the two is 1:1)...

Embodiment 3

[0053] (1) prepare the anti-ultraviolet sustained-release microcapsules of Abamectin-cyanobacteria

[0054] a. Dissolve 10kg of abamectin in 200kg of organic solvent ethanol in the reactor, and add 30kg of dried cyanobacteria powder, shake and soak for 24 hours at 25°C in a constant temperature air bath oscillator;

[0055] Add 3kg of easily degradable polymer polyvinyl alcohol, stir until it is evenly dispersed and completely dissolved;

[0056] b. Mix 3kg of dispersant Rhodia T36 with 100L of double distilled water, stir until completely dissolved, and mix with the product of step a;

[0057] Stir with a high-shear emulsifier at a speed of 12000rpm for 15 minutes, steam the organic solvent at a temperature of 40°C, solidify it into a capsule, filter out the water, and dry it into a powder to obtain the Abamectin-cyanobacteria anti-ultraviolet sustained-release capsule .

[0058] (2) Dissolve 5kg of water-soluble binder cornstarch in water; 10kg of dispersant Rhodia T36, 5k...

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Abstract

The invention belongs to avermectin-cyanobacteria anti-ultraviolet sustained-release microcapsule water dispersible granules, and a preparation method thereof. The granules comprise avermectin, cyanobacteria powder, degradable polymer, a dispersant, a moistening agent, an agglomerant, and a disintegrating agent. According to the invention, with-cyanobacteria, the anti-ultraviolet property of avermectin and a sustained-release technology are integrated in a novel pesticide preparation, and presently advanced and safe sustained-release microcapsule water dispersible granules are prepared. With the granules, production, storage, transportation, and application are convenient. Also, the granules are safe to human.

Description

technical field [0001] The invention belongs to the field of abamectin pesticides, and specifically relates to a water-dispersible granule of abamectin-cyanobacteria anti-ultraviolet sustained-release microcapsules and a preparation method thereof Background technique [0002] Abamectin, English name Avermectins, its structural formula is as follows: [0003] [0004] 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. [0005] Abamectin is a new type of antibiotic with the characteristics of novel structure and dual-use for agriculture and livestock. Abamectin has high biological activity against var...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/28A01N25/08A01N43/90A01P7/04A01P7/02
Inventor 任天瑞侯宏伟王全喜燕云峰张晓敏
Owner SHANGHAI NORMAL UNIVERSITY
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