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A kind of biodegradable pesticide sustained-release emulsifiable concentrate and its preparation method and application

A slow-release emulsifiable concentrate and pesticide technology, applied in the directions of botanical equipment and methods, applications, biocides, etc., can solve the problems of affecting the ecological environment, complex preparation methods, poor degradability, etc., and achieve simplified preparation methods, simple preparation methods, The effect of high production efficiency

Active Publication Date: 2022-03-11
HEBEI VEYONG BIO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of complex preparation methods of pesticide sustained-release preparations in the prior art, poor degradability, and impact on the ecological environment, the present invention provides a biodegradable pesticide sustained-release emulsifiable concentrate and its preparation method and application

Method used

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  • A kind of biodegradable pesticide sustained-release emulsifiable concentrate and its preparation method and application
  • A kind of biodegradable pesticide sustained-release emulsifiable concentrate and its preparation method and application
  • A kind of biodegradable pesticide sustained-release emulsifiable concentrate and its preparation method and application

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Embodiment 1

[0029] The embodiment of the present invention provides a kind of 5% emamectin b2a benzoate sustained-release emulsifiable concentrate, comprising the following components in mass percentage:

[0030] Emamectin b2a benzoate 5%, polylactic acid-glycolic acid copolymer 20%, sucrose fatty acid ester 1%, diacetyl tartaric acid mono-diglyceride 9%, stearic acid 0.33%, lipoic acid 0.67 %, ethylene glycol monoalkyl ether carboxylate 5.8%, and diethylene glycol monoethyl ether make up to 100%.

[0031] The above-mentioned components are mixed and stirred uniformly to prepare the 5% emamectin b2a benzoate sustained-release emulsifiable concentrate.

Embodiment 2

[0033] The embodiment of the present invention provides a kind of 10% emamectin b2a benzoate sustained-release emulsifiable concentrate, comprising the following components by mass percentage:

[0034] Emamectin b2a benzoate 10%, polylactic acid-glycolic acid copolymer 25%, sucrose fatty acid ester 3%, diacetyl tartaric acid mono-diglyceride 8%, stearic acid 0.25%, lipoic acid 0.75 %, ethylene glycol monoalkyl ether carboxylate 6%, diethylene glycol monoethyl ether make up to 100%.

[0035] The above-mentioned components are mixed and stirred evenly to prepare the 10% emamectin b2a benzoate slow-release emulsifiable concentrate.

Embodiment 3

[0037] The embodiment of the present invention provides a 15% emamectin b2a benzoate slow-release emulsifiable concentrate, comprising the following components in mass percentage:

[0038] Emamectin b2a benzoate 15%, poly(lactic-co-glycolic acid) 22.5%, sucrose fatty acid ester 7%, diacetyl tartaric acid mono-diglyceride 5%, stearic acid 0.3%, lipoic acid 1.2 %, ethylene glycol monoalkyl ether carboxylate 7%, diethylene glycol monoethyl ether to make up to 100%.

[0039] The above-mentioned components are mixed and stirred evenly to prepare the 15% emamectin b2a benzoate slow-release emulsifiable concentrate.

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Abstract

The invention relates to the technical field of pesticide preparation, and specifically discloses a biodegradable pesticide slow-release emulsifiable concentrate and its preparation method and application. The biodegradable pesticide slow-release emulsifiable concentrate comprises the following mass percentage components: 5-20% of abamectin and its derivatives, 20-25% of polylactic-glycolic acid copolymer, 10-12% of emulsifier, auxiliary 1-2% of the auxiliary agent, and the balance is a solvent; wherein, the auxiliary agent is a mixture of stearic acid and lipoic acid. The present invention provides a new pesticide sustained-release dosage form-slow-release emulsifiable concentrate, which can be obtained according to the conventional preparation method of emulsifiable concentrate, which can save the complicated process in the traditional microsphere preparation process, and can be directly mixed with water after emulsification. The method of spraying is the same as that of conventional emulsifiable concentrates, which greatly simplifies the preparation method of sustained-release preparations, saves labor and labor, has excellent sustained-release effects, is environmentally friendly, and has great promotion value.

Description

technical field [0001] The invention relates to the technical field of pesticide preparation, in particular to a biodegradable pesticide slow-release emulsifiable concentrate and its preparation method and application. Background technique [0002] At present, the commonly used sustained-release materials for pesticide sustained-release preparations are mainly non-biodegradable materials such as polyurea and polyurethane. Long-term use of such sustained-release preparations will cause damage to the environment and affect the ecological environment. Therefore, in recent years, the preparation of pesticide sustained-release formulations with biodegradable materials has gradually become a research hotspot. However, most of the preparation methods are based on methods such as emulsification-solvent volatilization method and complex coacervation method, the preparation process is relatively complicated, and the dosage form is also mainly suspension concentrate or granule. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/10A01N25/26A01N25/04A01N43/90A01P7/04
CPCA01N25/10A01N25/26A01N25/04A01N43/90
Inventor 张少飞陈海涛李宏敏张文树柴方堃贾成国
Owner HEBEI VEYONG BIO CHEM