Fluorinated Ether Surface Treatment for Abrasion-Resistant Repellency
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Solution Overview
Problem
Existing surface treatment agents using fluorinated ether compounds do not adequately address the need for a surface layer that maintains high water/oil repellency and abrasion resistance when repeatedly rubbed with fingers.
Innovation Solution
A surface treatment agent containing specific fluorinated ether compounds with carbon chains of 5 or more atoms, combined with a non-fluorine organic solvent, promotes orientation and enhances the abrasion resistance of the surface layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fluorinated ether compound with conventional structure is used for surface treatment, then water/oil repellency is achieved, but abrasion resistance deteriorates when repeatedly rubbed with fingers
Solution Approach 1:
The invention changes the molecular structure parameters of the fluorinated ether compound by introducing specific alkylene groups with 5 or more carbon atoms at predetermined positions in the molecule. This structural modification enables the compound to form a surface layer with both water/oil repellency and improved abrasion resistance, resolving the contradiction between these two properties
Solution Approach 2:
The invention creates a composite surface layer structure by combining the modified fluorinated ether compound (with specific alkylene groups) with the substrate surface. The composite structure integrates the low surface energy characteristics of fluorinated compounds for repellency with the mechanical strength provided by the alkylene chain structure for abrasion resistance
2Ease of operation
If fluorinated ether compound is used to form surface layer, then lubricity and water repellency are achieved, but abrasion resistance is insufficient for long-term performance
Solution Approach 1:
The invention modifies the molecular parameters of the fluorinated ether compound by incorporating alkylene groups with 5 or more carbon atoms at specific positions. This structural change maintains the lubricity and water repellency properties while significantly improving the durability and long-term performance of the surface layer under repeated use 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 surface treatment agent forms a layer with improved abrasion resistance and water/oil repellency, maintaining performance even under repeated finger contact.
Implementation Method 1
The fluorinated ether compound having a fluoropolyether chain and a hydrolysable silyl group is known to be useful for surface treatment of a substrate and to be capable of forming a surface layer
Implementation Method 2
The fluorinated ether compound having a fluoropolyether chain and a hydrolysable silyl group
Data Source
AI summary
To provide a surface treatment agent from which a surface layer excellent in abrasion resistance can be formed, an article having a surface layer excellent in abrasion resistance, and a method for producing an article. The surface treatment agent of the present invention is a surface treatment agent containing at least one fluorinated ether compound selected from the group consisting of a compound represented by the formula (A1), a compound represented by the formula (A2) and a compound represented by the formula (A3), and an organic solvent containing no fluorine atom.