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Mugwort essence oil synergistic chlorpyrifos microcapsule with soil caking resisting function and preparation method thereof

A technology of mugwort essential oil and chlorpyrifos, which can be applied in the fields of botanical equipment and methods, preservation of human or animal bodies, and chemicals used for biological control, etc. Insufficient development concept, poor slow release and other problems, to achieve the effect of improving the effective utilization rate, reducing toxicity and phytotoxicity, and reducing the use of pesticides

Inactive Publication Date: 2017-06-13
严帝
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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Embodiment

[0017] An anti-caking mugwort essential oil synergistic chlorpyrifos microcapsule is characterized in that it is made of the following raw materials in parts by weight:

[0018] Sodium pyrophosphate 2, chlorpyrifos technical 25, bentonite 50, rice bran 3, mugwort essential oil 8, urea 40, formaldehyde 70, hydrochloric acid 3, methanol 20, sodium hydroxide styrene-maleic anhydride copolymer Sodium salt 5, sodium polyacrylate 3, distilled water 800;

[0019] 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.

[0020] The preparation method of the anti-caking mugwort essential oil synergistic chlorpyrifos microcapsules is characterized in that it is made by the following steps:

[0021] a. Dissolve sodium pyrophosphate into 5-10 parts of distilled water to obtain a reaction solution, add the reaction solution to bentonite and mix evenly to obtain a reaction material, place...

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Abstract

The invention discloses a mugwort essence oil synergistic chlorpyrifos microcapsule with a soil caking resisting function and a preparation method thereof. The mugwort essence oil synergistic chlorpyrifos microcapsule is characterized in that the microcapsule is prepared from the following raw materials in parts by weight: 1 to 2 parts of sodium pyrophosphate, 15 to 25 parts of chlorpyrifos active compound, 30 to 50 parts of bentonite, 2 to 3 parts of rice bran, 3 to 8 parts of mugwort essence oil, 30 to 40 parts of urea, 60 to 70 parts of formaldehyde, a proper amount of hydrochloric acid, 2 to 3 parts of silicon dioxide, 10 to 20 parts of methyl alcohol, a proper amount of sodium hydroxide, 2 to 5 parts of sodium hydrated poly (styrene-alt-maleic anhydride), 2 to 3 parts of sodium polyacrylate and 250 to 800 parts of distilled water. The bentonite is introduced as a carrier into the microcapsule, the purpose of delaying chemical release is achieved, the stability of a microcapsule suspending agent is improved, and the service life of the farm chemical is prolonged; and bentonite treated with the sodium pyrophosphate can be used for preventing soil caking.

Description

technical field [0001] The invention relates to a pesticide preparation, in particular to an anti-soil caking mugwort essential oil synergistic chlorpyrifos microcapsule 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 ...

Claims

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Application Information

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IPC IPC(8): A01N25/10A01N25/28A01N25/04A01N25/08A01N65/12A01N57/16A01P7/00
CPCA01N25/04A01N25/08A01N25/10A01N25/28A01N57/16A01N65/00A01N65/12A01N2300/00
Inventor 严帝
Owner 严帝
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