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Ivermectin compounded chlorpyrifos microcapsule suspension and preparation method thereof

A technology of microcapsule suspending agent and ivermectin, applied in the field of pesticides, can solve problems such as insufficient sustained release performance

Inactive Publication Date: 2017-05-10
王欣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is insufficient sustained release performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] A chlorpyrifos microcapsule suspension compounded with ivermectin is prepared from the following raw materials in parts by weight (g):

[0021] Chlorpyrifos 8, polypropylene carbonate 30, polyvinyl alcohol 18, polylactic acid 14, gelatin 10, emulsified silicone oil 0.3, sodium alginate 6, organic bentonite 9, MCM-41 molecular sieve 8, KH550 3, polyacrylic acid 6, hydrotalcite 7 , ivermectin 2, polyether L-64 7, urea 4, dichloromethane, ethanol, toluene, N,N-dimethylformamide, ethylene glycol, distilled water in proper amount.

[0022] A kind of preparation method of the compound chlorpyrifos microcapsule suspension of ivermectin, it is characterized in that, carry out according to the following steps:

[0023] a. Dissolve polylactic acid in dichloromethane at 1:10, polyvinyl alcohol and gelatin in distilled water at 1:1:50, mix the two together for high-speed dispersion and emulsification for 40 seconds, add emulsified silicone oil, and stir magnetically for 2 hours to ...

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Abstract

The invention discloses an ivermectin compounded chlorpyrifos microcapsule suspension and a preparation method thereof. The ivermectin compounded chlorpyrifos microcapsule suspension is characterized by taking chlorpyrifos, polypropylene carbonate, polyvinyl alcohol, polylactic acid, gelatin, emulsified silicone oil, sodium alginate, organic bentonite, an MCM-41 molecular sieve, KH550, polyacrylic acid, hydrotalcite, ivermectin, polyether L-64, urea, N,N-dimethylformamide, ethylene glycol and the like as raw materials. According to the ivermectin compounded chlorpyrifos microcapsule suspension disclosed by the invention, the organic bentonite and the sodium alginate are commixed and modified so that intercalation is realized, and the hydrophobicity and adsorption effect are improved; a mixture is compounded with a biodegradable material, namely the polyacrylic acid, so as to prepare drug slow-releasing microcapsules. The KH550 is used for modifying the MCM-41 molecular sieve to obtain a carrier, and the polyacrylic acid with negative charges is used as a functional molecule; a slow releasing system is prepared through an electrostatic adsorption effect. The laminar hydrotalcite is used as a main body and the microencapsulated chlorpyrifos is used as a guest molecule, and the components prepared into an intercalation material, so that the ivermectin compounded chlorpyrifos microcapsule suspension is prepared.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a chlorpyrifos microcapsule suspension compounded with ivermectin, and a preparation process thereof. Background technique [0002] Chlorpyrifos is a widely used organophosphorus insecticide. It can be used as a substitute for highly toxic pesticides. It can be applied to the control of sanitation and agricultural pests. It can effectively control more than 100 kinds of pests on various crops such as grain, vegetables, and fruit trees. Chlorpyrifos has a strong odor, is relatively easy to photolyze, and is easy to cause phytotoxicity to sensitive crops. In order to improve its safety and duration, and reduce environmental pollution, it is microencapsulated. [0003] In his research paper "Preparation and Sustained Release Performance Evaluation of Degradable Polypropylene Carbonate-Chlorpyrifos Microcapsules", Meng Rui used polypropylene carbonate (PPC) as the wall material and polyviny...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N25/28A01N57/16A01N43/90A01P7/04
CPCA01N25/04A01N25/28A01N43/90A01N57/16
Inventor 王欣
Owner 王欣