Matrine microcapsule suspension agent and preparation method thereof

A technology of microcapsule suspending agent and matrine, applied in botany equipment and methods, insecticides, acaricides, etc., can solve the problems of environmental pollution and pest control effects and deficiencies, and achieve increased insecticidal effects and safety Good sex and long lasting effect

Inactive Publication Date: 2012-09-19
沈阳东大迪克化工药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Purpose of the invention: the present invention provides a kind of matrine microcapsule suspension and preparation method thereof, and its purpose is to solve the deficiency of the formulation of biological pesticides in my country, the pollution to the environment and the problems existing in the control effect of pests

Method used

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  • Matrine microcapsule suspension agent and preparation method thereof
  • Matrine microcapsule suspension agent and preparation method thereof
  • Matrine microcapsule suspension agent and preparation method thereof

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Experimental program
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Embodiment approach

[0030] Embodiment: Below in conjunction with embodiment and experimental method, the present invention will be further described:

[0031] A matrine microcapsule suspending agent, the suspending agent is mainly composed of: 1-25 parts of matrine total alkaloids, 5-20 parts of organic solvent, 1-25 parts of capsule wall material, 0.1-25 parts of colloid 3 parts, emulsifier 1~20 parts, deionized water to make up to 100 parts. The suspending agent can also include antifreeze and preservative; the distribution relationship is 1 to 6 parts by weight of antifreeze, 0.01 to 1 part of preservative, and 100 parts of deionized water;

[0032] The total alkaloids of flavescens are extracted from roots of flavescens and purified repeatedly, and the content of flavescens is more than 30%. The organic solvent is one or more combinations of xylene, cyclohexanone, DY-5 and castor oil. The capsule wall material is an aqueous solution of urea-formaldehyde resin. The colloid is composed of on...

Embodiment 1

[0040] Embodiment 1 prepares 1% matrine microcapsule suspension, by weight:

[0041]

[0042]Mix and stir 3.4 g of matrine ointment and 5 g of castor oil solvent to dissolve them all, and then add a certain amount of urea-formaldehyde resin solution 10 g under stirring. Then add 2 g of xanthan gum and stir at 1500 rpm to form an oil-in-water emulsion. Reduce the number of rotations, stir for 10 minutes, then add dilute hydrochloric acid to adjust the pH value to 2.0, stir for another hour and then reduce the rotation speed to 800 rpm, raise the temperature to about 50 degrees, continue stirring to form stable microcapsules, and add hydroxide after 2 hours Sodium adjusts the pH to 7.0. Add natural soap powder 13g, ethylene glycol 5g, potassium sorbate 0.6g under stirring state, after stirring for 2 hours, add 61g deionized water to make up 100% and continue stirring for 2 hours to obtain matrine microcapsule suspension.

Embodiment 2

[0043] Embodiment 2 prepares 2.5% matrine microcapsule suspension, by weight:

[0044]

[0045] Mix and stir 8.4g of matrine ointment and 10g of DY-5 solvent to dissolve them completely, and then add a certain amount of urea-formaldehyde resin solution 20g under stirring. Then add 0.6 g of gelatin and stir at 1500 rpm to form an oil-in-water emulsion. Reduce the number of rotations, stir for 10 minutes, then add dilute hydrochloric acid to adjust the pH value to 2.0, stir for another hour and then reduce the rotation speed to 800 rpm, raise the temperature to about 50 degrees, continue stirring to form stable microcapsules, and add hydroxide after 2 hours Sodium adjusts the pH to 7.0. Add Tween 15g, glycerol 3g, sodium benzoate 0.5g under stirring state, after stirring for 2 hours, add 42.5g deionized water to make up 100%, continue stirring for 2 hours to obtain matrine microcapsule suspension.

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Abstract

The invention belongs to the technical field of biological pesticides, and more particularly relates to a matrine-containing pesticide and a preparation method thereof. The matrine-containing pesticide is characterized in that a suspension agent mainly comprises the following components in parts by weight: 1-25 parts of matrine, 5-20 parts of organic solvent, 1-25 parts of capsule wall material, 0.1-3 parts of colloid, 1-20 parts of emulsifier and the balance of de-ionized water to 100 parts. The matrine microcapsule suspension agent and the preparation method thereof aim to solve insufficient dosage form of biological pesticides in China, pollution to the environment and a poor control effect on insect pests. All active components in the scheme are naturally extracted from single-composition sophora flavescens plants, do not contain any chemical pesticides and are safe to natural enemies and the environment; and the novel matrine pesticide has the advantages of long duration of efficacy, anti-photolysis, improvement of utilization rate of pesticides and the like.

Description

Technical field: [0001] The invention belongs to the technical field of biopesticides, in particular to an insecticide containing unimatrine as an effective drug component and a preparation method thereof. Background technique: [0002] With the improvement of people's living standards, the quality requirements of agricultural products are higher, not only to taste good, but also to be healthy. The problem of pesticide residues caused by highly toxic chemical pesticides has increasingly become a hot spot of social concern. Extensive use of chemical pesticides is the key to affecting the quality and safety of agricultural products, especially the unreasonable use of highly toxic chemical pesticides, which not only directly endangers the health of the people, but also affects the income of farmers. In addition, with the increasing awareness of environmental protection in countries around the world, high-toxicity, high-residue chemical pesticides and outdated formulations will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/20A01N25/04A01N25/28A01P7/04A01P7/02A01P3/00
CPCY02A50/30
Inventor 谢跃刚许伟
Owner 沈阳东大迪克化工药业有限公司
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