Bordeaux mixture/organosulfur fungicide nano-suspension dispersion
AssigneeZiyong ZHANG
InventorsZiyong ZHANG, Bing LIANG
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Abstract
The present invention belongs to the field of nano-pesticides, and particularly relates to the preparation of suspension dispersions of water-insoluble and solvent-insoluble pesticide varieties with a microparticle size of less than 100 nanometers, especially less than 50 nanometers. It provides a nano-suspension in which basic copper sulfate microparticles are suspended and dispersed within a random coil morphological structure formed by a water-soluble polymeric dispersant in water.
Claims14
A Bordeaux mixture/Mancozeb nano-suspension dispersion, wherein the Bordeaux mixture/Mancozeb nano-suspension dispersion is a sub-100 nanometer level Bordeaux mixture/Mancozeb nano-suspension dispersion generated by mixing and reacting three components:
- Component A:
- composed of an aqueous solution of an alkaline compound, Amobam (ammonium ethylenebisdithiocarbamate), and a buffer;
- Component B:
- composed of solids or aqueous solutions of copper sulfate, manganese salt, and zinc salt;
- Component C:
- composed of at least one water-soluble polymeric dispersant, or its aqueous solution;
- the three components, under conditions of pre-stirring and effective stirring, generate basic copper sulfate and Mancozeb microparticles dispersed within a random coil morphological structure formed by the water-soluble polymeric dispersant dissolved in water.
A Bordeaux mixture/Propineb nano-suspension dispersion, wherein the Bordeaux mixture/Propineb nano-suspension dispersion is a sub-100 nanometer level Bordeaux mixture/Propineb nano-suspension dispersion generated by mixing and reacting three components:
- Component A:
- composed of an aqueous solution of an alkaline compound, propineb-ammonium, and a buffer;
- Component B:
- composed of solids or aqueous solutions of copper sulfate and zinc salt;
- Component C:
- composed of at least one water-soluble polymeric dispersant, or its aqueous solution;
- the three components, under conditions of pre-stirring and effective stirring, generate basic copper sulfate and Propineb microparticles dispersed within a random coil morphological structure formed by the water-soluble polymeric dispersant dissolved in water.
A preparation method for a Bordeaux mixture/Mancozeb nano-suspension dispersion, comprising the following steps:
- the diluted solution of Component A is pre-stirred first, and then under conditions where the stirring speed is not less than the effective stirring speed, the diluted solution of Component B is added into the diluted solution of Component A to form a Bordeaux mixture/Mancozeb nano-suspension dispersion;
- alternatively, the diluted solution of Component B is pre-stirred first, and then under conditions where the stirring speed is not less than the effective stirring speed, the diluted solution of Component A is added into the diluted solution of Component B to form a Bordeaux mixture/Mancozeb nano-suspension dispersion;
- Component A:
- an aqueous solution composed of an alkaline compound, Amobam, a water-soluble polymeric dispersant, and water;
- Component B:
- solids of copper sulfate, manganese salt, and zinc salt, or aqueous solutions of copper sulfate, manganese salt, and zinc salt;
- the generated basic copper sulfate and Mancozeb microparticles are dispersed within the random coil morphological structure formed by the water-soluble polymeric dispersant dissolved in water.
A preparation method for a Bordeaux mixture/Propineb nano-suspension dispersion, comprising the following steps:
- the diluted solution of Component A is pre-stirred first, and then under conditions where the stirring speed is not less than the effective stirring speed, the diluted solution of Component B is added into the diluted solution of Component A to form a Bordeaux mixture/Propineb nano-suspension dispersion;
- alternatively, the diluted solution of Component B is pre-stirred first, and then under conditions where the stirring speed is not less than the effective stirring speed, the diluted solution of Component A is added into the diluted solution of Component B to form a Bordeaux mixture/Propineb nano-suspension dispersion;
- Component A:
- An aqueous solution composed of an alkaline compound, propineb-ammonium, a water-soluble polymeric dispersant, and water;
- Component B:
- Solids of copper sulfate and zinc salt, or aqueous solutions of copper sulfate and zinc salt;
- the generated basic copper sulfate and Propineb microparticles are dispersed within the random coil morphological structure formed by the water-soluble polymeric dispersant dissolved in water.
Dependencies are inferred from the claim text.