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Propiconazole emulsifiable granules and preparation method thereof

A technology of propiconazole and emulsifier, applied in the field of pesticides and fungicides, can solve the problems of not meeting the requirements and trends of agricultural sustainable development, quick effect, long-lasting effect, insufficient environmental protection, waste of petroleum resources, etc., to achieve maintenance The effect of colloidal stability, excellent drug efficacy and high HLB value

Active Publication Date: 2014-01-29
江西正邦作物保护股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used propiconazole has three dosage forms: microemulsion, water emulsion and emulsifiable concentrate. These three dosage forms are not enough in terms of quick-acting, long-lasting effect, environmental protection, etc., and there is a problem of poor efficacy. Large doses of propiconazole can achieve the purpose of sterilization
Among them, the solvents used in EC formulations are mainly aromatic hydrocarbons such as toluene and xylene, which not only pollute the environment, but also waste a lot of petroleum resources, which do not meet the requirements and trends of sustainable agricultural development.

Method used

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  • Propiconazole emulsifiable granules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: 20% propiconazole emulsifiable granules.

[0016] Liquid propiconazole 20%, emulsifier FS-7PG (nonionic and anionic mixed surfactant, produced by Takemoto Oil) 8%, water-soluble polymer polyvinyl alcohol (PVA) 8%, and the rest is supplemented by carrier sodium benzoate. First mix propiconazole and emulsifier evenly, then add the mixed propiconazole into 10% polyvinyl alcohol (PVA) aqueous solution (PVA and water are made into aqueous solution at a ratio of 1:10), mix evenly to obtain viscous Emulsion, then adding the carrier sodium benzoate to the viscous emulsion to obtain a pre-granulation mixture, finally granulation and drying.

Embodiment 2

[0017] Example 2: 30% propiconazole emulsifiable granules.

[0018] Liquid propiconazole 30%, emulsifier SB-75 (non-ionic and anionic mixed surfactant, produced by Takemoto Oil) 10%, water-soluble polymer carboxymethyl starch sodium (CMS) 12%, the rest is carrier Yuanming Powder make up. First mix propiconazole and emulsifier evenly, then add the mixed propiconazole into 8% carboxymethyl starch sodium (CMS) aqueous solution (CMS and water are made into aqueous solution at 1:8), mix well to obtain viscous Thick emulsion, and then adding the carrier sodium bicarbonate to the viscous emulsion to obtain a pre-granulated mixture, finally granulated and dried.

Embodiment 3

[0019] Embodiment 3: 40% propiconazole emulsifiable granules.

[0020] Liquid propiconazole 40%, emulsifier FS-7PG (nonionic and anionic mixed surfactant, produced by Takemoto Oil) 12%, water-soluble polymer sodium carboxymethylcellulose (CMC) 10%, the balance is carrier sulfuric acid Ammonium supplementation. Mix propiconazole and emulsifier evenly first, then add the mixed propiconazole into 12% sodium carboxymethylcellulose (CMC) aqueous solution (CMC and water are made into an aqueous solution at 1:12), and mix evenly to obtain A viscous emulsion, and the carrier ammonium sulfate is added to the viscous emulsion to obtain a pre-granulated mixture, which is finally granulated and dried.

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Abstract

The invention relates to propiconazole emulsifiable granules and a preparation method thereof, and relates to an agricultural bactericide. The propiconazole emulsifiable granules comprise the following raw materials in percentage by weight: 20%-60% of propiconazole, 8%-12% of emulsifying agent, 8%-12% of water-soluble polymer, and the balance of carriers. The preparation method comprises the following steps: mixing liquid propiconazole and the emulsifying agent uniformly firstly; adding propiconazole after mixing into a water solution of the water-soluble polymer, and mixing uniformly, thus viscous emulsion is obtained; then adding the carriers into the viscous emulsion, thus a pre-granulating mixture is obtained; and finally granulating and drying. The granules provided by the invention have quick acting and duration, can maintain a long-term superiority effect, can achieve good effect at low concentration, can reach the same bactericidal effect by utilizing a small amount of propiconazole, and have tiny pollution to crops.

Description

technical field [0001] The invention relates to a pesticide fungicide, in particular to a preparation method of propiconazole emulsifiable granules and propiconazole emulsifiable granules. Background technique [0002] Propiconazole is a new type of systemic triazole broad-spectrum fungicide with dual functions of treatment and protection. It can be absorbed by roots, stems and leaves, and can quickly conduct upwards in plants. It has the characteristics of broad-spectrum bactericidal spectrum, high activity, fast bactericidal speed, long-lasting effect, and strong systemic conductivity. disease, rust, root rot, rice bad fungus, and banana leaf spot have good control effects. [0003] At present, the commonly used propiconazole has three dosage forms: microemulsion, water emulsion and emulsifiable concentrate. These three dosage forms are not enough in terms of quick-acting, long-lasting effect, environmental protection, etc., and there is a problem of poor efficacy. Large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/12A01N43/653A01P3/00
Inventor 代新洪林印孙邹喜明王成龙周志锋
Owner 江西正邦作物保护股份有限公司
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