Insecticide Composition Thermal Stability and Electrostatic Transfer
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Solution Overview
Problem
Existing insecticide compositions with electrostatic substances have a short effective life cycle and are prone to coagulation at high temperatures, leading to reduced efficacy and increased labor in production, storage, and application.
Innovation Solution
Insecticide compositions incorporating insecticide powders with melting points above 100° C, particularly benzoylurea group growth regulators like diflubenzuron, combined with an electrostatic charge and protective powders, to enhance stability and transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If insecticide powders with low melting point (e.g., pyriproxyfen at 45-47°C) are used, then the composition is effective against insects, but the powder coagulates at high temperatures (50-55°C) during storage and transport, reducing effectiveness
Solution Approach 1:
The patent changes the critical parameter of melting point by selecting insecticide powders with melting points above 100°C (particularly above 150°C or 200°C). This parameter change ensures the powder remains stable and does not coagulate during storage and transport at temperatures up to 50-55°C, while maintaining insecticidal effectiveness. Examples include diflubenzuron (melting point 228°C) and other benzoylurea group compounds.
2Device complexity
If insecticide powders are used without electrostatic substance, then the composition is simpler, but the powder does not stick to insects effectively and cannot be transported to their breeding places
Solution Approach 1:
The patent introduces an electrostatic substance as an intermediary layer between the insecticide powder and the insects. This electrostatic layer (which may be a dry electrostatic substance or an electrostatic coating) enables the powder to stick to insects through electrostatic forces when insects land on or contact the treated surface, facilitating transport to breeding places without complicating the overall composition.
3Reliability
If structures are frequently exchanged in the field (every two months), then the insecticide composition maintains effectiveness, but production, transport, and storage volumes increase, and labor requirements increase
Solution Approach 1:
The patent applies preliminary action by selecting insecticide powders with high melting points (above 100°C, particularly above 150°C or 200°C) that are pre-selected for their thermal stability. This preliminary selection ensures the composition remains effective for longer periods under various storage and transport conditions, reducing the frequency of exchanges needed and thereby decreasing production, transport, and storage volumes required.
4Ease of operation
If insecticide powder is applied on electrostatic substance, then the powder sticks to insects and can be transported, but the powder coagulates at high temperatures before transfer
Solution Approach 1:
The patent changes the melting point parameter of the insecticide powder to above 100°C (particularly above 150°C or 200°C), which prevents coagulation during storage and transport at temperatures up to 50-55°C. This parameter change maintains the powder's ability to stick to insects via the electrostatic substance while ensuring stability under erroneous storage conditions.
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 compositions maintain effectiveness for longer periods, resist coagulation at high temperatures, and ensure efficient transfer of insecticides to insects, reducing labor and storage needs.
Implementation Method 1
the insecticide powders are being held by electrostatic forces exerted by the electrostatic layer
Data Source
AI summary
An insecticide composition including at least one insecticide powder having a melting point above: 75° C., particularly above 100° C., more particularly above 150° C., still more particularly above 200° C., and to be applied on an electrostatic substance. The insecticide composition preferably has at least one insecticide powder being a growth regulator of the benzoylurea group. The electrostatic substance includes a platinum and/or silver complex containing substance. The insecticide composition includes at least one protective powder acting against moisture, in particular silicates, zeolites, silicon dioxide, calcium carbonate and/or diatomaceous earth. The insecticide composition may also include an insect killing fungus.