Herbicidal Water Emulsion for Temperature Stability and Broader Weed Control
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Solution Overview
Problem
Existing herbicides face issues of instability under varying temperatures and limited weed-killing spectrum, leading to resistance and reduced effectiveness.
Innovation Solution
A herbicidal composition combining benzylazole with active ingredients like acetochlor and mesotrione, optimized with specific emulsifiers, thickeners, and solvents to create a stable water emulsion that enhances weed control and delays resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single effective herbicidal ingredient is used, then the formulation is simple, but resistance develops easily and the weeding spectrum is limited
Solution Approach 1:
The patent combines benzylazole with multiple herbicidal ingredients (acetochlor, butachlor, metolachlor, dimethylphenoxychlor, mesotrione, nicosulfuron, atrazine, terbuthylazine, metribuzin) into a single composition. This merging of multiple active ingredients with different modes of action prevents resistance development and expands the weeding spectrum while maintaining formulation effectiveness.
Solution Approach 2:
The invention creates a composite herbicidal material consisting of benzylazole in combination with various other herbicides. This composite approach leverages the synergistic effects of different chemical compounds to achieve broader spectrum control and delayed resistance compared to single-ingredient formulations.
2Ease of operation
If conventional water emulsion is used, then application is convenient, but stability under high and low temperatures is poor
Solution Approach 1:
The patent modifies the physical and chemical parameters of the water emulsion by incorporating specific stabilizers, surfactants, and co-emulsifiers. These parameter changes include optimizing HLB values, adjusting pH ranges, and selecting temperature-resistant additives that maintain emulsion stability across a wide temperature range while preserving application convenience.
Solution Approach 2:
The invention develops a composite water emulsion system that integrates multiple functional components including emulsifiers, co-emulsifiers, stabilizers, and temperature modifiers. This composite formulation achieves both ease of application and enhanced thermal stability through the synergistic interaction of its constituents.
3Reliability
If multiple herbicidal ingredients are combined, then the weeding spectrum expands and resistance is delayed, but the formulation complexity increases
Solution Approach 1:
The patent merges multiple herbicidal ingredients with complementary modes of action into a single integrated formulation. This combining approach expands the weeding spectrum to cover grassy, broadleaf, and sedge weeds while delaying resistance through multi-target action, with the complexity managed through careful formulation design.
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 composition achieves improved stability across temperature ranges, expands weed-killing spectrum, and reduces pesticide use frequency and cost, suitable for pre-seedling soil treatment of dry crops.
Implementation Method 1
The emulsifier reduces the interfacial tension of each component in the mixed system, and forms a relatively solid film on the surface of the micro droplets
Implementation Method 2
Emulsifier is a compound which makes the mixture liquid containing two or more immiscible components form a stable emulsion
Implementation Method 3
Thickener, also known as gelling agent, is a substance that increases the viscosity of latex and liquid
Implementation Method 4
Antifreeze agent is a substance added to other liquids (generally water) to reduce the freezing point and improve the antifreeze ability
Data Source
AI summary
The invention relates to the technical field of pesticides, in particular to a herbicidal composition, preparation and application thereof. The herbicidal composition comprises a component A and a component B, wherein, the component A is benzylazole, and the component B is at least one of acetochlor, butachlor, metolachlo, dimethylphenoxychlor, mesotrione, nicosulfuron, atrazine, terbuthylazine, metribuzin, S-metolachlor and dimethylphenoxychlor. The weight ratio of the component A to the component B is 1:(1-80).