Chlopyrifos microcapsules containing quick lime and preparation method thereof

A technology of quicklime and chlorpyrifos, applied in botany equipment and methods, chemical instruments and methods, chemicals for biological control, etc., can solve environmental protection, health, lack of concept of sustainable development, unsatisfactory dispersion and stability, Poor slow-release performance and other problems, to achieve the effect of improving effective utilization, reducing toxicity and drug damage, and reducing the use of pesticides

Inactive Publication Date: 2017-06-13
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
Comparison scheme
Effect test

Embodiment

[0018] A chlorpyrifos microcapsule containing quicklime is characterized in that it is made of the following raw materials by weight:

[0019] Quicklime 4, chlorpyrifos technical 20, bentonite 50, potassium hydrogen phosphate 2, mugwort essential oil 8, urea 40, dodecyltrimethylammonium chloride 2, sodium dodecylbenzenesulfonate 3, formaldehyde 70, hydrochloric acid Appropriate amount, methanol 20, sodium hydroxide appropriate amount, styrene-maleic anhydride copolymer sodium salt 5, sodium polyacrylate 3, distilled water 800;

[0020] 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.

[0021] The preparation method of described a kind of chlorpyrifos microcapsule containing unslaked lime is characterized in that, is made by following steps:

[0022] a. Fully disperse bentonite into 100-200 parts of distilled water to make bentonite suspension, add dodecyltrimethylammo...

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Abstract

The invention discloses chlopyrifos microcapsules containing quick lime and a preparation method thereof. The chlopyrifos microcapsules are characterized by being prepared from the following raw materials in parts by weight: 3 to 4 parts of quick lime, 13 to 20 parts of chlopyrifos raw material, 30 to 50 parts of bentonite, 1 to 2 parts of potassium hydrogen phosphate, 3 to 8 parts of artemisia vulgaris essential oil, 30 to 40 parts of urea, 1 to 2 parts of dodecyl trimethyl ammonium chloride, 1 to 3 parts of sodium dodecyl benzene sulfonate, 60 to 70 parts of formaldehyde, a proper amount of hydrochloric acid, 10 to 20 parts of methanol, a proper amount of sodium hydroxide, 2 to 5 parts of sodium salt of styrene-maleic anhydride copolymer, 2 to 3 parts of sodium polyacrylate and 250 to 800 parts of distilled water. The organic bentonite is introduced into the microcapsules as a carrier, so that the aim of delaying drug release can be fulfilled, meanwhile the stability of a microcapsule suspending agent is improved, and the service life of a pesticide is prolonged; the effect of improving acid soil is achieved through the added quick lime.

Description

technical field [0001] The invention relates to a pesticide preparation, in particular to a chlorpyrifos microcapsule containing quicklime 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, and saves the amount of pesticides used. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/12A01N57/16A01P7/00C09K17/06C09K109/00
CPCA01N25/04A01N25/28A01N57/16A01N65/00A01N65/12C09K17/06C09K2109/00A01N2300/00
Inventor 严帝
Owner 严帝
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