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Jatropha curcas microcapsule and preparation technique thereof

A technology of microcapsule preparation and preparation process, applied in microcapsule preparation, microsphere preparation, biocide and other directions, can solve the problems of short drug effect period and high application cost, reduce decomposition and loss, and be suitable for industrial production and technology. simple effect

Inactive Publication Date: 2012-06-20
YUNNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main insecticidal active ingredients in conventional pesticide formulations are easily decomposed by sunlight, oxygen in the air, microorganisms, and metal ions during storage, transportation, and use, resulting in short efficacy periods and high application costs. renew

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1. In a reactor, add 32 grams of sodium lignosulfonate aqueous solution, heat to 50° C., then add 5 grams of alkyl polyoxyethylene ether and 20 grams of jatrophin parent drug successively, and stir evenly. Maintain the solution temperature at 50°C, add 15 grams of 1,3-propylenediamine and 20 grams of phthaloyl chloride respectively, stir at 1500 rpm for interfacial polymerization for 50 minutes, add triethanolamine to adjust the pH value to 7, and then Stir at 700 rpm for 20 minutes to prepare jatrophin microcapsules.

Embodiment 2

[0022] Example 2. In the reactor, add 23 grams of Tween-60 aqueous solution, heat to 50° C., then add 3 grams of styroylphenol polyoxyethylene ether phosphate and 15 grams of jatrophin parent drug successively, and stir evenly . Maintain the solution temperature at 50°C, add 10 grams of ethylenediamine and 15 grams of terephthaloyl chloride respectively, stir at 1500 rpm for interfacial polymerization for 50 minutes, add sodium bicarbonate to adjust the pH value to 6.5, and then stir at 700 rpm minute stirring for 20 minutes to prepare jatrophin microcapsules.

Embodiment 3

[0023] Example 3, in the reactor, add 40 grams of polyvinyl alcohol aqueous solution, heat to 50 ° C, then add 3 grams of biphenol polyoxyethylene ether, 1.5 grams of calcium dodecylbenzenesulfonate, 25 grams of Jatropha Vegetarian medicine, stir evenly. Maintain the solution temperature at 50°C, add 20 grams of 2,4,6-triaminotoluene and 25 grams of adipoyl chloride respectively, stir at 1500 rpm for interfacial polymerization for 50 minutes, add triethanolamine to adjust the pH value to 7.5, then add triethanolamine to 700 R / min and stirring for 20 minutes, jatrophin microcapsules can be prepared.

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PUM

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Abstract

The invention relates to prepared jatropha curcas microcapsule and a preparation method thereof, which belongs to the technical field of pesticide formulation, and is characterized in that: jatropha curcas (the active ingredient is Jatropherol I) is adopted as the material core and is made into the jatropha curcas microcapsule through an interfacial polymerization method. The jatropha curcas microcapsule is characterized by comprising the following ingredients: 1 to 50 percent of jatropha curcas parental maternal drug, 7 to 27 percent of emulsifier, 5 to 18 percent of penetration agent, 5 to 26 percent of latent solvent and water with the rest quantity. The microcapsule has good sealing performance, suffers small natural influence (such as ultraviolet, microorganisms, temperature and metal ions), has high stability, can cover smells, has sustained-release efficiency, and can effectively control the pollution on the underground water; and the microcapsule has simple preparation technique and low production cost and is suitable for the mass production.

Description

technical field [0001] The invention belongs to the category of preparation techniques of pesticides and insecticides, and in particular relates to a jatropha insecticidal microcapsule and a preparation technique thereof. Background technique [0002] Botanical pesticides have the advantages of wide insecticidal spectrum, environmental friendliness, low toxicity, not easy to produce resistance, and do not harm natural enemies of pests. Biology is relatively safe. [0003] The main insecticidal active ingredients in conventional pesticide formulations are easily decomposed by sunlight, oxygen in the air, microorganisms, and metal ions during storage, transportation, and use, resulting in short efficacy periods and high application costs. renew. Microcapsules is a technology that coats active substances on polymer substrates for slow release. It has the advantages of reducing toxic and side effects, reducing the amount of active substances, improving utilization efficiency, ...

Claims

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Application Information

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IPC IPC(8): A01N45/00A01N25/28A01P1/00A01P7/00A01P9/00B01J13/16
Inventor 林军浦恩堂廖云波夏咸松严胜骄王耘
Owner YUNNAN UNIV
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