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Pymetrozine water dispersing granule and preparation method thereof

A technology of pymetrozine and disperse granules, which is applied to botany equipment and methods, insecticides, biocides, etc., can solve the problems of large filler consumption, environmental pollution, etc., reduce negative impacts, reduce environmental pollution, and improve The effect of utilization

Inactive Publication Date: 2013-06-19
JIANGSU TIANRONG GROUP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects that pymetrozine wettable powder consumes a large amount of fillers and causes serious pollution to the environment, and develops an environmentally friendly, high-efficiency, broad-spectrum insecticide containing pymetrozine

Method used

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  • Pymetrozine water dispersing granule and preparation method thereof
  • Pymetrozine water dispersing granule and preparation method thereof
  • Pymetrozine water dispersing granule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: 10% pymetrozine water-dispersible granules

[0022] Each component is (weight):

[0023] Pymetrozine 10 parts

[0024] Polycarboxylate 25 parts

[0025] Sodium carboxymethyl starch 12 parts

[0026] Sodium p-methoxy fatty amidobenzene sulfonate 12 parts

[0027] Sodium carboxymethyl cellulose 10 parts

[0028] Anhydrous sodium sulfate 31 parts

[0029] Grind pymetrozine and the rest of the additives except the binder, and pre-mix them in a gravity-free mixer according to the formula ratio for 20 minutes, then put the mixture into the double-screw mixer (I), and pulverize it by airflow while mixing. Machine crushed to a particle size of 1000 mesh or more, collected by a cyclone separator and a bag filter, and finally mixed again in a double-screw mixer (II) to obtain a uniform powder. Then accurately weigh a certain amount of powder into a fluidized granulator, spray into the binder according to the formula, and dry to obtain a granular water-dispersi...

Embodiment 2

[0030] Embodiment 2: 25% pymetrozine water dispersible granules

[0031] Pymetrozine 25 parts

[0032] Polycarboxylate 10 parts

[0033] Sodium carboxymethyl starch 5 parts

[0034] Sodium p-methoxy fatty amidobenzene sulfonate 5 parts

[0035] Sodium carboxymethyl cellulose 1 part

[0036] Anhydrous sodium sulfate 54 parts

[0037] According to the method of Example 1, 25% pymetrozine water-dispersible granules were prepared.

Embodiment 3

[0038] Embodiment 3: 50% pymetrozine water dispersible granules

[0039] Pymetrozine 50 parts

[0040] Polycarboxylate 15 parts

[0041] Sodium carboxymethyl starch 10 parts

[0042] Sodium p-methoxy fatty amidobenzene sulfonate 12 parts

[0043] Sodium carboxymethyl cellulose 3 parts

[0044] Anhydrous sodium sulfate 10 parts

[0045] According to the method of Example 1, 50% pymetrozine water-dispersible granules were prepared.

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Abstract

The invention discloses a pymetrozine water dispersing granule and a preparation method thereof. The pymetrozine water dispersing granule comprises the following components in percentage by weight: 5%-80% of pymetrozine, 2%-25% of dispersing agents, 2%-20% of disintegrating agents, 1%-15% of wetting agents, 0.1%-10% of cementing agents, and the balance of fillers complemented to 100%. The invention has stable physical and chemical property and difficult decomposition and degeneration, needs no organic solvent, has no dust entrainment, can not burn and explode, saves the petroleum resources, reduces the environmental pollution, is safe for operators and environments in the production and usage process, can be processed into a high-content preparation as required and saves the packing, storage and transportation cost.

Description

technical field [0001] The invention belongs to the field of pesticide formulations, and in particular relates to a pymetrozine water-dispersible granule and a preparation method. Background technique [0002] Pymetrozine belongs to pyridine or triazinone insecticides. It is a brand-new non-biocide insecticide. It was first developed by Ciba-Geigy in Switzerland in 1988. Pests showed excellent control effect. Studies using electropenetrography (EPG) techniques have shown that no matter in drip, feeding or injection experiments, as long as aphids or planthoppers are exposed to pymetrozine, they almost immediately produce a stylet blocking effect, stop feeding immediately, and eventually starve. fatal, and the process is irreversible. Therefore, pymetrozine has an excellent function of blocking insect transmission. Although the mechanism of the stylet blockage caused by pymetrozine is not yet clear, existing studies have shown that this irreversible "stop eating" is not cau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/14A01N43/707A01P7/04
Inventor 许网保魏明阳臧伟新虞国新刘文新
Owner JIANGSU TIANRONG GROUP