Pyraoxystrobin pesticide preparation taking porous silicon dioxide as carrier and preparation method of pyraoxystrobin pesticide preparation

A technology of porous silica and mesoporous silica, applied in the field of pesticides, can solve problems such as poor transmission performance, achieve high drug loading rate, good transmission performance, and improve the effect of pesticide systemic absorption

Inactive Publication Date: 2021-04-30
河南衡谱分析检测技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a systemic pesticide, pyraclostrobin has poor transport performance in target crops, mostly in the treatment of leaf transport.

Method used

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  • Pyraoxystrobin pesticide preparation taking porous silicon dioxide as carrier and preparation method of pyraoxystrobin pesticide preparation
  • Pyraoxystrobin pesticide preparation taking porous silicon dioxide as carrier and preparation method of pyraoxystrobin pesticide preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]A pyraclostrobin pesticide preparation using porous silica as a carrier, the active ingredient is pyraclostrobin, the carrier is porous silica, the particle size of the porous silica is 200nm, and the porous silica is mesoporous Silica or microporous silica, the specific surface area of ​​porous silica is 900.013m 2 / g, the pore diameter of porous silica is 1.487nm.

[0034] A preparation method of pyraclostrobin pesticide preparation using porous silicon dioxide as a carrier, dissolving all the pyraclostrobin original drug in an organic solvent, then adding porous silicon dioxide prepared by a sol-gel method, and fully mixing , centrifuged and dried to obtain pyraclostrobin pesticide preparation with porous silica as carrier.

[0035] Further, the mass ratio of pyraclostrobin to porous silica is 1:2, and the specific usage amounts are 15 mg of Pyr and 30 mg of MSN.

[0036] Further, the organic solvent is methanol.

[0037] Further, after adding porous silicon dioxid...

Embodiment 2

[0051] A pyraclostrobin pesticide preparation using porous silica as a carrier, the active ingredient is pyraclostrobin, the carrier is porous silica, the particle size of the porous silica is 100nm, and the porous silica is mesoporous Silica or microporous silica, the specific surface area of ​​porous silica is 623.017m 2 / g, the pore diameter of porous silica is 2nm.

[0052] A preparation method of pyraclostrobin pesticide preparation using porous silicon dioxide as a carrier, dissolving all the pyraclostrobin original drug in an organic solvent, then adding porous silicon dioxide prepared by a sol-gel method, and fully mixing , centrifuged and dried to obtain pyraclostrobin pesticide preparation with porous silica as carrier.

[0053] Further, the mass ratio of pyraclostrobin to porous silica is 3:1, and the specific usage amounts are 90 mg of Pyr and 30 mg of MSN.

[0054] Further, the organic solvent is xylene.

[0055] Further, after adding porous silicon dioxide, st...

Embodiment 3

[0069] A pyraclostrobin pesticide preparation using porous silica as a carrier, the active ingredient is pyraclostrobin, the carrier is porous silica, the particle diameter of the porous silica is 15nm, and the porous silica is mesoporous Silica or microporous silica, the specific surface area of ​​porous silica is 342.09m 2 / g, the pore diameter of porous silica is 2.743nm.

[0070] A preparation method of pyraclostrobin pesticide preparation using porous silicon dioxide as a carrier, dissolving all the pyraclostrobin original drug in an organic solvent, then adding porous silicon dioxide prepared by a sol-gel method, and fully mixing , centrifuged and dried to obtain pyraclostrobin pesticide preparation with porous silica as carrier.

[0071] Further, the mass ratio of pyraclostrobin to porous silica is 6:1, and the specific usage amounts are 180 mg of Pyr and 30 mg of MSN.

[0072] Further, the organic solvent is dichloromethane.

[0073] Further, after adding porous sil...

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Abstract

The invention discloses a pyraoxystrobin pesticide preparation taking porous silicon dioxide as a carrier and a preparation method of the pyraoxystrobin pesticide preparation. According to the pyraoxystrobin pesticide preparation taking the porous silicon dioxide as the carrier, the effective component is pyraoxystrobin, the carrier is the porous silicon dioxide, the particle size of the porous silicon dioxide is 15-200 nm, the porous silicon dioxide is mesoporous silicon dioxide or microporous silicon dioxide, and the specific surface area of the porous silicon dioxide is 342.09-900.013 m<2>/g. The preparation method of the pyraoxystrobin pesticide preparation taking the porous silicon dioxide as the carrier comprises the steps: completely dissolving a pyraoxystrobin active compound in an organic solvent, adding the porous silicon dioxide prepared by a sol-gel method, fully mixing and adsorbing, and centrifugally drying to obtain the pyraoxystrobin pesticide preparation taking the porous silicon dioxide as the carrier.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a pyraclostrobin pesticide preparation with porous silicon dioxide as a carrier and a preparation method thereof. Background technique [0002] Pesticides can effectively reduce biological pests and are an important material basis for ensuring food security and increasing food production. As an important means of agricultural production, it is indispensable in agriculture. However, traditional pesticides have shortcomings such as coarse drug-loaded particles, high organic solvent content, dust drift, poor dispersibility, and low effective active ingredients. During use, the utilization rate of pesticides is not high due to unstable physical and chemical properties and improper application methods. Effective active ingredients are easily degraded and lost. This not only increases the cost of pesticide production, affects the efficiency of pesticide use, increases t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01N25/08A01P3/00A01P1/00
CPCA01N25/08A01N43/56
Inventor 贾明宏徐永丙梁旭阳
Owner 河南衡谱分析检测技术有限公司
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