Mancozeb dry suspension agent, preparation method and application thereof
By constructing a quaternary synergistic stabilizing system of "coordination-layered-chelation-acid hydrolysis", modified zinc oxide and zinc-aluminum layered double hydroxide form an immediate-release and slow-release zinc source. Combined with the chelating synergistic effect of ethylenediaminetetraacetic acid and citric acid, the stability problem of high-content mancozeb dry suspension during thermal storage is solved, achieving high suspension rate and disintegration performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEBEI SHUANGJI CHEM CO LTD
- Filing Date
- 2026-05-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing high-content mancozeb dry suspension concentrates have poor stability during heat storage, are prone to hydrolysis and clumping, resulting in a decrease in suspension rate and making it difficult to meet the stability requirements of modern agriculture for high-content formulations.
A quaternary synergistic stabilization system of "coordination-layer-chelation-acid hydrolysis" is adopted. Modified zinc oxide and zinc-aluminum layered double hydroxide form a dual zinc source of "rapid release-slow release". Combined with the "primary and secondary chelation" synergistic system of ethylenediaminetetraacetic acid and citric acid, and with the addition of dispersants, wetting agents and stabilizers, a long-term chelate buffer system is constructed to improve thermal storage stability.
It significantly improves the thermal storage stability and suspension rate of high-content mancozeb dry suspension, ensuring good dispersibility and disintegration performance under high temperature and high humidity conditions, and extending the product shelf life.
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