Stain-Proof Base Material With Composite Oxide Interlayer
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Solution Overview
Problem
Existing surface-treating layers using fluorine-containing silane compounds lack sufficient friction durability and chemical resistance.
Innovation Solution
A surface-treating layer formed from a surface-treating agent containing a fluorine-containing silane compound of specific formulas, applied over a substrate with an intermediate layer comprising a composite oxide of Si and Ta or Nb, enhancing the layer's durability and chemical resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a surface-treating layer is formed using conventional fluorine-containing silane compounds, then water-repellency and oil-repellency are achieved, but friction durability and chemical resistance are insufficient
Solution Approach 1:
An intermediate layer comprising composite oxide of Si and Ta or Si and Nb is introduced between the substrate and the surface-treating layer. This intermediate layer acts as a mediator that enhances the bonding strength and provides a stable foundation, thereby improving friction durability and chemical resistance of the overall coating system without complicating the surface treatment process itself.
Solution Approach 2:
The patent uses composite oxide materials (Si-Ta or Si-Nb) for the intermediate layer, combining different metal oxides to achieve superior mechanical and chemical properties. This composite structure provides both hardness and adhesion, resolving the contradiction between durability and ease of manufacture by using materials that inherently possess multiple beneficial properties.
2Reliability
If a surface-treating layer is formed using conventional fluorine-containing silane compounds, then basic surface functionality is achieved, but chemical resistance is insufficient
Solution Approach 1:
The intermediate layer of composite oxide serves as a chemical barrier and bonding intermediary between the substrate and fluorine-containing silane surface-treating layer. This mediator layer provides chemical stability and resistance while maintaining a relatively simple two-layer structure that does not significantly increase device complexity.
Solution Approach 2:
The patent changes the compositional parameters of the intermediate layer by using specific composite oxides (Si-Ta or Si-Nb) with controlled ratios, thereby achieving enhanced chemical resistance. This parameter optimization allows for improved performance without requiring complex multi-layer structures.
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 proposed solution significantly improves the friction durability and chemical resistance of the surface-treating layer, making it more effective in various applications.
Implementation Method 1
a surface-treating layer located directly on the intermediate layer and formed from a surface-treating agent containing at least one fluorine-containing silane compound
Implementation Method 2
an intermediate layer located on the substrate and comprising a composite oxide which (i) is a composite oxide of Si and Ta or of Si and Nb
Data Source
AI summary
The present invention provides an article, comprising a substrate; an intermediate layer located on the substrate; and a surface-treating layer located directly on the intermediate layer and formed from a surface-treating agent containing a fluorine-containing silane compound, wherein the intermediate layer comprises a composite oxide containing Si.