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Mugwort essential oil synergistic chlorpyrifos microcapsules by using copolymer as carrier and preparation method thereof

A technology of mugwort essential oil and chlorpyrifos, applied in botany equipment and methods, preservation of human or animal body, animal repellent, etc., can solve environmental protection, health, lack of concept of sustainable development, unsatisfactory dispersion and stability , poor slow-release and other problems, to achieve the effect of improving the effective utilization rate, reducing toxicity and drug damage, and reducing the use of pesticides

Inactive Publication Date: 2017-05-31
严帝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Zhao De prepared chlorpyrifos microcapsules with urea-formaldehyde resin as the wall material in "Urea-formaldehyde Resin Preparation of Chlorpyrifos Microcapsules and Performance Characterization", but there are still problems in dispersibility and stability, poor slow-release performance, environmental protection, health, The concept of sustainable development is lacking

Method used

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Experimental program
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Effect test

Embodiment

[0019] A mugwort essential oil synergistic chlorpyrifos microcapsule with a copolymer as a carrier is characterized in that it is made of the following raw materials in parts by weight:

[0020] Succinic acid 5, chlorpyrifos technical 25, bentonite 50, butylene glycol 5, mugwort essential oil 8, urea 40, dodecyltrimethylammonium chloride 2, lactic acid 1.5, formaldehyde 70, hydrochloric acid amount, methanol 20, Appropriate amount of sodium hydroxide, styrene-maleic anhydride copolymer sodium salt 5, sodium polyacrylate 3, distilled water 800;

[0021] The mass fraction of the formaldehyde is 30-40%, the mass fraction of the hydrochloric acid is 20-30%, and the mass fraction of the sodium hydroxide is 20-40.

[0022] The preparation method of the mugwort essential oil synergistic chlorpyrifos microcapsules with a copolymer as a carrier is characterized in that it is made by the following steps:

[0023] a. Fully disperse bentonite into 100-200 parts of distilled water to make...

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Abstract

The invention discloses mugwort essential oil synergistic chlorpyrifos microcapsules by using a copolymer as a carrier and a preparation method thereof. The invention is characterized in that the microcapsules are prepared from the following raw materials in parts by weight: 3-5 parts of succinic acid, 15-25 parts of chlorpyrifos technical toxicant, 30-50 parts of bentonite, 3-5 parts of butanediol, 3-8 parts of mugwort essential oil, 30-40 parts of urea, 1-2 parts of dodecyl trimethyl ammonium chloride, 0.6-1.5 parts of lactic acid, 60-70 parts of formaldehyde, a right amount of hydrochloric acid, 10-20 parts of methanol, a right amount of sodium hydroxide, 2-5 parts of styrene-maleic anhydride copolymer sodium salt, 2-3 parts of sodium polyacrylate and 250-800 parts of distilled water. Organobentonite is introduced into the microcapsules as the carrier, thereby achieving the goal of postponing the drug release, enhancing the stability of the microcapsule suspending agent, and prolonging the service life of agricultural chemicals. The introduced copolymer is used as a co-carrier, thereby obviously enhancing the drug loading capacity of the microcapsules.

Description

technical field [0001] The invention relates to a pesticide preparation, in particular to a mugwort essential oil synergistic chlorpyrifos microcapsule with a copolymer as a carrier and a preparation method thereof. Background technique [0002] Microcapsule suspension can be described as one of the most technologically advanced pesticide formulations. It uses a polymer material as the capsule wall, and wraps the pesticide active substance as the capsule core by chemical, physical or physicochemical methods to form a microcapsule with a semi-permeable membrane. And they are stably dispersed and suspended in water as the continuous phase at a certain concentration. Compared with conventional pesticide formulations, microencapsulated pesticide preparations have the following advantages: 1. The introduction of controlled release technology prolongs the duration of pesticides, reduces the number and frequency of pesticide application, improves the utilization rate of pesticides...

Claims

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Application Information

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IPC IPC(8): A01N65/12A01N57/16A01N25/28A01N25/04A01N25/18A01P7/04
CPCA01N25/04A01N25/18A01N25/28A01N57/16A01N65/00A01N65/12A01N2300/00
Inventor 严帝
Owner 严帝
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