Fluoropolyether Silane Surface Treatment Layer Durability
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Solution Overview
Problem
Current fluorine-containing silane compounds used for surface treatment lack optimal physical properties such as chemical durability, friction durability, water-repellency, and oil-repellency, particularly in forming a surface-treating layer with balanced lubricity and stability.
Innovation Solution
A fluoropolyether group-containing silane compound with a specific molecular structure, including a fluoropolyether group and a silane moiety, is developed to enhance the physical properties of the surface-treating layer by improving the e/f ratio, which results in a cured layer with increased lubricity, friction durability, and chemical resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fluorine-containing silane compounds are used for surface treatment, then water-repellency and oil-repellency are provided, but chemical durability and friction durability are insufficient
Solution Approach 1:
The patent modifies the molecular structure parameters of fluorine-containing silane compounds by introducing specific fluoropolyether groups with controlled e/f ratios. This structural parameter change enables simultaneous improvement of chemical durability and friction durability while maintaining water-repellency and oil-repellency properties.
Solution Approach 2:
The patent creates composite molecular structures combining fluorine-containing silane compounds with fluoropolyether groups. This composite approach integrates the beneficial properties of both components: the silane compound provides water-repellency and oil-repellency, while the fluoropolyether group enhances chemical and friction durability.
2Duration of action of moving object
If fluoropolyether group-containing silane compounds are used to improve friction durability, then lubricity is enhanced, but stability may be compromised
Solution Approach 1:
The patent optimizes the e/f ratio parameter in fluoropolyether groups to achieve the desired balance between friction durability and stability. By controlling this molecular parameter, the compound provides enhanced lubricity while maintaining compositional stability.
3Duration of action of moving object
If the e/f ratio is optimized to improve lubricity, then friction durability increases, but other physical properties may be affected
Solution Approach 1:
The patent systematically adjusts the e/f ratio parameter and other molecular structure parameters to achieve optimal balance across multiple properties. This parameter optimization enables simultaneous improvement of friction durability, chemical durability, water-repellency, and oil-repellency without compromising any single property.
Data Source
AI summary
A fluoropolyether group-containing silane compound of the following formula (A1) or (A2). Also disclosed is are surface-treating agent and a pellet including the fluoropolyether group-containing silane compound, and an article including a substrate and a layer on the surface of the substrate formed of fluoropolyether group-containing silane compound. The symbols are as defined in the description.