Nano-particle based on mesoporous silica loaded trifluorobenzene pyrimidine

A technology of mesoporous silica and trifluoropyrim, which is applied in the field of nanoparticles, can solve the problems of not being able to reflect low-toxicity pesticides and effectively highlighting the advantages of trifluoropyrim in terms of ecological and environmental safety.

Inactive Publication Date: 2021-06-11
YANGZHOU POLYTECHNIC COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For high-efficiency and low-toxicity pesticides, the advantages of low-toxicity pesticides cannot be reflected if new environmentally friendly formulations are not developed
If the preparations of triflumezidine and bromflubendiamide do not reduce the amount of organic solvents and develop safe formulations such as water-based preparations, it will not be possible to effectively highlight the advantages of triflumezidine and bromflubendiflubamide on the ecological environment.

Method used

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  • Nano-particle based on mesoporous silica loaded trifluorobenzene pyrimidine
  • Nano-particle based on mesoporous silica loaded trifluorobenzene pyrimidine
  • Nano-particle based on mesoporous silica loaded trifluorobenzene pyrimidine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、7

[0025] Example 1. 7.0% trifluoropyrimidine·brofenfenib nanoparticles: the mass concentrations of the active ingredients trifluorofenib and fenfenpifen in the nanoparticle formulation are 5.0% and 2.0%, respectively.

[0026] Preparation method: 14.50 g of trifluorophenyl pyrimidine and 5.80 g of bromiliprole were added to 100 mL of ethanol solution, and then 80 g of mesoporous silica was added into it. The mixed solution was stirred in a water bath at 60° C. for 6 h, so that the mesoporous silica could fully adsorb trifluoropyrimidine and fenflunomide. Then open the stirring, slowly evaporate the ethanol to dry the mesoporous silica, and then use 25 mL of hot ethanol solution to wash the residual trifluoropyrimidine and bromilifenamide on the surface of the mesoporous silica. Then, the residual ethanol was washed with deionized water, and the residual ethanol was washed with deionized water for a total of 3 times. Finally, the washed mesoporous silica was put into a freeze dry...

Embodiment 2

[0027] Example 2. Field efficacy test: The test site is located in the rice planting base of Shaobo Town, Jiangdu District, Yangzhou City, Jiangsu Province. During the test period, the occurrence of rice leaf roller was serious, and the area was 360 m 2 , medium fertility, water and fertilizer management, cultivation techniques, sowing and seedlings and planting period and other conditions are the same, the test treatment and plot arrangement, the test set a total of 3 treatments: (1) 7.0% trifluoropyrimidine · bromflofenac nanometer Emulsion, diluted 1000 times for spray application; (2) 6.0% Abamectin·Indoxacarb microemulsion: diluted 1000 times for spray application; (3) clear water control, clear water spray application. The experimental plots were arranged in random blocks, with 3 treatments, each with 4 replicates, a total of 12 plots, and the test area of ​​each plot was 30m2 2 . Dilute each agent to the required concentration, use Gongnong-16 type knapsack manual spra...

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Abstract

The invention relates to a nano-particle based on mesoporous silica loaded triflumezopyrim, the nano-particle comprises the following components: an effective component triflumezopyrim, an effective component chlorfenapyr bisamide and a mesoporous silica capsule wall material, wherein the effective component triflumezopyrim and the effective component chlorfenapyr bisamide respectively account for 5.0% and 2.0% of the total mass of the nano-particle, a and the rest is a mesoporous silica capsule wall material. The prepared nano-particle has slow-release and controlled-release characteristics and environmental compatibility, the lasting period is prolonged, the application amount is reduced, and the control effect on pests is improved.

Description

technical field [0001] The invention relates to a nanoparticle based on mesoporous silica supported trifluoropyrimidine, which belongs to the research field of plant protection. Background technique [0002] On a global scale, the year-by-year expansion of crop planting areas has made it increasingly difficult to control pests (diseases, insects, and weeds), and the resulting losses account for about 35% of the total crop output. In the comprehensive management of pests, chemical pesticides have become the main means of control due to their rapidity, high efficiency, low cost, and easy operation. In recent years, the extensive use of pesticides has exposed many problems such as environmental pollution, pesticide residues, pest resistance and the re-emergence of pests, which makes the safe and efficient use of pesticides attract the attention and attention of all countries. Therefore, changing the traditional ways of using pesticides in agricultural production and developing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N37/46A01N25/08A01P7/04C01B33/18
CPCA01N25/08A01N37/46A01N43/90C01B33/18C01P2004/04C01P2004/64C01P2006/12C01P2006/14C01P2006/16
Inventor 徐志英王奎萍陈小军沈殿晶范添乐刘苏闽
Owner YANGZHOU POLYTECHNIC COLLEGE
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