Water dispersible granule containing solid dispersing agent, and preparation method thereof
A technology of solid dispersant and dispersing granules, applied in the fields of botanical equipment and methods, biocides, fungicides, etc., can solve the problems of poor disintegration and dispersing ability and poor stability of water-dispersible granules, and achieve excellent disintegration and dispersion. The effect of capability and stability, low cost, low cost of use
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0040] According to the method for preparing water-dispersible granules containing a solid dispersant according to the present invention, the method comprises the following steps: (1) preparing a solid dispersant; (2) dispersing the solid prepared in the above step (1) The agent is mixed with the original drug of captan, solid wetting agent and auxiliary materials according to the weight ratio of (2-8):80:(3-7):(5-15), and then extruded and granulated to obtain the solid Water-dispersible granules of dispersants.
[0041] According to the solid dispersant of the present invention, it is prepared according to the following steps: a. Mix fumed silicon dioxide and hexamethylene diisocyanate, then add solvent and catalyst, and react by ball milling for 3 to 5 hours to obtain silicon dioxide / hexamethylene diisocyanate hybrid particles; b. Add fatty alcohol polyoxyethylene ether to the silicon dioxide / hexamethylene diisocyanate hybrid particles obtained above, and add catalyst for ...
Embodiment 1
[0048] Prepare solid dispersant: 100g fumed silica (particle size is 7nm) and 100g hexamethylene diisocyanate are added in planetary ball milling device, then add 500g xylene as solvent and 0.1g stannous octoate as catalyst, ball mill After reacting for 4 hours, silica / hexamethylene diisocyanate hybrid particles were obtained. Add 200g of polyoxyethylene lauryl ether (15EO) to the obtained silica / hexamethylene diisocyanate hybrid particles, add stannous octoate for ball milling reaction for 4 hours, heat up to 70°C, and remove the solvent in vacuo After toluene, add water to dissolve the product to remove unreacted isocyanate groups, and finally dry it by spraying powder to obtain a solid dispersion.
[0049] Preparation of water-dispersible granules: according to 100 parts of total weight, 80 parts of captan former medicine, 5 parts of solid dispersant, 5 parts of solid wetting agent WS-EFW, 10 parts of auxiliary materials (5 parts of gypsum, 1 part of starch, urea 4 parts),...
Embodiment 2
[0051] Prepare solid dispersant: 100g fumed silica (particle size is 7nm) and 90g hexamethylene diisocyanate are added in planetary ball milling device, then add 600g xylene as solvent and 0.1g stannous octoate as catalyst, ball mill After reacting for 5 hours, silica / hexamethylene diisocyanate hybrid particles were obtained. Add 300g tetradecyl polyoxyethylene ether (20EO) to the obtained silica / hexamethylene diisocyanate hybrid particles, add stannous octoate for ball milling reaction for 4 hours, heat up to 60°C, and remove the solvent in vacuo After toluene, add water to dissolve the product to remove unreacted isocyanate groups, and finally dry it by spraying powder to obtain a solid dispersion.
[0052] Preparation of water-dispersible granules: according to 100 parts of total parts, 80 parts of captan former medicine, 5 parts of solid dispersant, 5 parts of solid wetting agent WS-EFW, 10 parts of auxiliary materials (3 parts of kaolin, carboxymethyl cellulose 1 part of...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More