Surface Protection Composition for Terminal Fitted Electric Wire
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Solution Overview
Problem
Existing surface protection compositions for metal equipment and parts exhibit inferior adsorption force and anticorrosion performance due to the lack of metal adsorbing components, and their viscosity issues lead to poor coating properties and heat resistance, especially when used at high temperatures.
Innovation Solution
A surface protection composition containing a phosphorus compound, a metal-containing compound or amine compound, a (meth)acrylate with a solvent of 8.2 or lower solubility parameter, and a photopolymerization or thermal polymerization initiator, which forms a uniform film and enhances adsorption on metal surfaces, improving coating properties and heat resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If grease or conventional composition is used for metal protection, then lubrication and basic protection are provided, but adsorption force to metal surface and anticorrosion performance are inferior
Solution Approach 1:
The patent changes the chemical composition parameters by introducing specific metal adsorbing components (phosphorus compound and metal-containing compound or amine compound) to enhance the chemical interaction between the composition and metal surface, thereby improving both adsorption force and anticorrosion performance simultaneously
Solution Approach 2:
The patent creates a composite protection system by combining multiple functional components: phosphorus compound for adsorption, metal-containing compound or amine compound for chemical bonding, and lubricating base oil for lubrication. This composite approach allows the composition to achieve both strong metal adhesion and effective corrosion protection
2Ease of operation
If grease is heated to reduce viscosity for easier coating, then coating properties improve, but the grease flows out easily due to viscosity decrease
Solution Approach 1:
The patent uses heating to change the physical state parameter (viscosity) of the composition during application, making it easier to coat. After coating, the composition maintains its position due to the balanced formulation that prevents excessive flow even at elevated temperatures
Solution Approach 2:
The composition is designed to be applied in a heated state for easy coating, then allowed to cool and set in place. This preliminary heating action facilitates application, while the subsequent cooling maintains the composition in position without flowing out
3Stability of the object's composition
If gelling agent is added to make composition resistant to flowing out at high temperature, then heat resistance improves, but compatibility of entire composition deteriorates and sufficient anticorrosion performance cannot be achieved
Solution Approach 1:
The patent achieves heat resistance by carefully controlling the formulation parameters of the base oil and additives rather than relying on gelling agents. This approach maintains composition compatibility while preventing excessive flow at high temperatures and ensuring sufficient anticorrosion performance
Solution Approach 2:
The patent creates a compatible composite system where the phosphorus compound, metal-containing compound or amine compound, and lubricating base oil work together synergistically. This composite formulation achieves both heat resistance and anticorrosion performance without the compatibility issues associated with gelling agents
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 effectively prevents metal corrosion by forming a strong, uniform film that maintains its integrity at high temperatures, ensuring excellent anticorrosion performance and coating properties.
Implementation Method 1
The compositions described in Patent Literatures 1 and 2 exhibit inferior adsorption force to the metal and inferior anticorrosion performance to prevent metal corrosion since the compositions do not contain metal adsorbing components
Implementation Method 2
at least one of a photopolymerization initiator and a thermal polymerization initiator in an amount of 0.1 to 10 mass % with respect to the total amount of the composition
Data Source
AI summary
A surface protection composition forms a uniform film, and a terminal fitted electric wire coated with the composition, the composition containing (a) a phosphorus compound represented by the formula (1) in an amount of 0.1 to 10 mass % in terms of phosphorus element, (b) a metal-containing compound in an amount of 0.1 to 10 mass % in terms of metal element or an amine compound in an amount of 0.1 to 5.0 mass % in terms of nitrogen element, (c) a (meth)acrylate compatible with a solvent with a solubility parameter of 8.2 or lower and has a hydrocarbon chain with 4 or higher carbon atoms in an amount of 1.0 to 70 mass %, and (d) at least one of a photopolymerization initiator and a thermal polymerization initiator in an amount of 0.1 to 10 mass %, with respect to the total amount of the composition.