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Pesticide nano drug-loaded particle framework material as well as preparation method and application thereof

A nano-drug-loading and framework material technology is applied in the field of pesticide research and development to achieve the effects of fast reaction rate, improved effective utilization, and promotion of growth and metabolism.

Active Publication Date: 2022-05-06
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, research at home and abroad is mainly focused on the preparation, performance characterization, controlled release performance, toxicity to harmful organisms, and improvement of effectiveness of pesticide nano-loaded particles, but there is no application of pesticide nano-loaded particles to regulate the growth and metabolism of target crops. to report

Method used

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  • Pesticide nano drug-loaded particle framework material as well as preparation method and application thereof
  • Pesticide nano drug-loaded particle framework material as well as preparation method and application thereof
  • Pesticide nano drug-loaded particle framework material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Weigh 253.6mg of 2-aminoterephthalic acid, 756.8mg of ferric chloride hexahydrate, 416.7mg of polyvinylpyrrolidone and disperse them in a beaker containing 23ml of N,N-dimethylformamide, add 1ml of acetic acid, 21ul of triethyl Amines, mixed by ultrasound.

[0054] The mixture was transferred to a polytetraethylene autoclave, sealed and placed in an oven for constant temperature reaction at 120° C. for 24 hours.

[0055] Take out from the reaction kettle, let the reactant stand still, let it cool down to room temperature naturally, centrifuge at 10000rpm for 5min, and collect the precipitate.

[0056] The precipitate was washed three times with DMF, ethanol, and ultrapure water, dried in an oven at 60°C for 8 hours, and ground to obtain MOF-NH 2 .

[0057] Weigh 60mg of MOF-NH 2 With 60mg tebuconazole technical substance (pesticide raw material and MOF-NH 2 The mass ratio of materials is 1:1), 2 mL of dichloromethane was added as a load solvent, and stirred at room ...

Embodiment 2

[0068] Weigh 253.6mg of 2-aminoterephthalic acid, 756.8mg of ferric chloride hexahydrate, 277.8mg of polyvinylpyrrolidone and disperse them in a beaker containing 23ml of N,N-dimethylformamide, add 1ml of acetic acid, 21ul of triethyl Amines, mixed by ultrasound.

[0069] The mixture was transferred to a polytetraethylene autoclave, sealed and then placed in an oven for constant temperature reaction at 120° C. for 20 h.

[0070] Take out from the reaction kettle, let the reactant stand still, let it cool down to room temperature naturally, centrifuge at 10000rpm for 5min, and collect the precipitate.

[0071] The precipitate was washed three times with DMF, ethanol, and ultrapure water, dried in an oven at 80°C for 6 hours, and ground to obtain MOF-NH 2 .

[0072] Weigh 60mg of MOF-NH 2 With 60mg tebuconazole technical substance (pesticide raw material and MOF-NH 2 The mass ratio of materials is 1:1), 2 mL of dichloromethane was added as a load solvent, and stirred at room...

Embodiment 3

[0075] Weigh 253.6mg of 2-aminoterephthalic acid, 756.8mg of ferric chloride hexahydrate, 138.9mg of polyvinylpyrrolidone and disperse them in a beaker containing 23ml of N,N-dimethylformamide, add 1ml of acetic acid, 21ul of triethyl Amines, mixed by ultrasound.

[0076] The mixture was transferred to a polytetraethylene autoclave, sealed and placed in an oven for constant temperature reaction at 120° C. for 24 hours.

[0077] Take out from the reaction kettle, let the reactant stand still, let it cool down to room temperature naturally, centrifuge at 10000rpm for 8min, and collect the precipitate.

[0078] The precipitate was washed three times with DMF, ethanol, and ultrapure water, dried in an oven at 60°C for 8 hours, and ground to obtain MOF-NH 2 .

[0079] Weigh 60mg of MOF-NH 2 With 60mg tebuconazole technical substance (pesticide raw material and MOF-NH 2 The mass ratio of materials is 1:1), 2 mL of dichloromethane was added as a load solvent, and stirred at room ...

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Abstract

The invention provides a pesticide nano drug-loaded particle framework material as well as a preparation method and application thereof, and belongs to the technical field of pesticide research and development. The pesticide nano drug-loaded particle framework material provided by the invention is prepared from the following reaction raw materials in parts by mass: 5-15 parts of 2-aminoterephthalic acid and 8-25 parts of soluble ferric iron salt, the reaction raw materials are dispersed in the reaction solvent N, N-dimethylformamide for reaction. The invention provides a pesticide nano drug-loading particle framework material which is obtained by taking ferric iron as a metal node and carrying out amino modification on the surface of the ferric iron, the particle size of the pesticide nano drug-loading particle framework material is 150-400nm, imidacloprid, tebuconazole and thifluzamide can be loaded, and the pesticide nano drug-loading particle framework material has a relatively good controlled release effect and bactericidal activity, and can be used for preparing the pesticide nano drug-loading particle framework material. The negative influence of effective components of the pesticide on the plant growth can be relieved, so that the plant growth is promoted.

Description

technical field [0001] The invention belongs to the technical field of pesticide research and development, and in particular relates to a framework material of pesticide nano drug-loaded particles, a preparation method and application thereof. Background technique [0002] Pesticides are an important guarantee for increasing agricultural production. However, at present, the proportion of high-efficiency and environmentally friendly pesticide preparations produced and used in my country is not high, and the varieties are still dominated by traditional formulations such as emulsifiable concentrate and wettable powder. Low. In addition, during the use of pesticides, they will enter the target crops and have a negative impact on the normal growth and physiological functions of plants. [0003] Pesticide nano drug-loaded particles are currently a hot research topic. At present, research at home and abroad is mainly focused on the preparation, performance characterization, contr...

Claims

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Application Information

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IPC IPC(8): C08G83/00A01N25/10A01N43/653A01N51/00A01P3/00A01P21/00
CPCC08G83/008A01N25/10A01N43/653A01N51/00
Inventor 赵鹏跃黄啟良王超杰曹立冬李凤敏曹冲
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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