Solid Pesticide Formulation with Effervescent System for Cold Water Dispersibility
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Solution Overview
Problem
Pesticidal formulations face challenges with dispersibility and stability in cold and hard water, leading to clogging of spraying equipment and reduced effectiveness due to physical incompatibility with fertilizers and high foaming issues.
Innovation Solution
A stable, self-dispersible, low foaming solid formulation comprising a pesticide, an anti-foaming agent, and an effervescent system, optimized for compatibility with cold and hard water, which includes a combination of a pesticide, a solid or liquid oil-based anti-foaming agent, and an effervescent system, with specific weight ratios to enhance dispersibility and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If solid pesticide formulations are applied in cold and hard water, then pesticide delivery is achieved, but dispersibility deteriorates leading to agglomerate formation and clogging
Solution Approach 1:
The formulation pre-combines pesticide particles with dispersing agents and effervescent agents during manufacturing, creating a self-dispersing system that automatically activates upon contact with water. This preliminary preparation eliminates the need for separate dispersal steps and ensures immediate breakdown of agglomerates in cold hard water conditions.
Solution Approach 2:
The invention creates a composite formulation integrating pesticide active ingredients with dispersing agents, wetting agents, and effervescent agents in a unified granular or powder structure. This composite approach ensures synergistic interaction between components, where the effervescent reaction generates gas bubbles that physically separate pesticide particles while dispersing agents coat them to prevent re-agglomeration.
2Ease of operation
If surfactants and dispersants are added to improve dispersibility, then dispersion quality improves, but foaming increases leading to solution loss
Solution Approach 1:
The invention modifies the chemical parameters of the formulation by incorporating specific ratios of anionic, cationic, and non-ionic surfactants alongside effervescent agents. This parameter optimization allows the system to achieve effective dispersibility while the effervescent reaction simultaneously generates foam-reducing bubbles that collapse surface tension and prevent persistent foam formation.
Solution Approach 2:
The effervescent agents act as intermediaries that mediate between the dispersing agents and water. When activated, they produce gas bubbles that physically interrupt foam film formation while the resulting carbon dioxide saturation of the solution reduces surface tension, thereby suppressing foam stability without compromising dispersibility.
3Ease of operation
If more dispersing agent and effervescent agent are used to enhance dispersibility, then particle dispersion improves, but foam generation increases requiring more antifoaming agent
Solution Approach 1:
The invention merges multiple functions into a single integrated formulation system where dispersing agents, effervescent agents, and foam control mechanisms work together synergistically. The effervescent reaction serves dual purposes: generating gas bubbles for physical particle separation and simultaneously producing carbon dioxide-saturated solution that suppresses foam. This consolidation eliminates the need for separate antifoaming agent additions.
4Productivity
If pesticides and fertilizers are combined in spray tanks, then application efficiency improves, but physical incompatibility causes precipitation and clogging
Solution Approach 1:
The formulation pre-incorporates compatibility agents and dispersing systems that are activated upon contact with water, creating a protective environment for pesticide particles before fertilizer addition. This preliminary preparation ensures that when fertilizers are mixed in, the pesticide particles are already coated and stabilized, preventing precipitation and maintaining suspension stability throughout the spraying process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The formulation ensures improved dispersibility and physical stability, reducing foaming and clogging issues, thereby enhancing the efficiency and effectiveness of pesticide application in agricultural settings.
Implementation Method 1
an effective amount of effervescent system
Implementation Method 2
an effective amount of anti-foaming agent
Data Source
AI summary
The present subject matter relates to a stable pesticidal formulation which exhibits improved dispersibility in cold water and full compatibility with fertilizers.