Laminate with Triazine Interlayer for Low Water Sliding Angle
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Solution Overview
Problem
Fingerprint removability on surfaces treated with fluorinated ether compounds is insufficient due to large water sliding angles, even when water contact angles are high.
Innovation Solution
A laminate structure comprising a substrate with an interlayer formed using a triazine compound and a surface layer formed using a fluorinated ether compound with a poly(oxyperfluoroalkylene) chain, which improves the introduction of the poly(oxyperfluoroalkylene) chain to the surface, reducing the water sliding angle and enhancing fingerprint removability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a surface layer is formed using fluorinated ether compound to achieve large water contact angle, then water repellency is improved, but water sliding angle remains large resulting in insufficient fingerprint removability
Solution Approach 1:
The patent divides the surface treatment into two separate layers: an interlayer formed by triazine compound and a surface layer formed by fluorinated ether compound. This segmentation allows each layer to perform its specific function - the interlayer provides adhesion and promotes poly(oxyperfluoroalkylene) chain orientation, while the surface layer provides water repellency, together achieving both large water contact angle and small water sliding angle for improved fingerprint removability
Solution Approach 2:
The patent uses a composite structure combining triazine compound interlayer and fluorinated ether compound surface layer. The triazine compound contains amino groups and mercapto groups that form strong bonds with the substrate, while the fluorinated ether compound provides the hydrophobic surface. This composite material approach enables synergistic effects where the interlayer enhances the performance of the surface layer in reducing water sliding angle while maintaining water contact angle
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 laminate achieves a small water sliding angle and improved fingerprint removability, with the triazine compound's interlayer facilitating better adhesion and distribution of the fluorinated ether compound, resulting in excellent stain removal properties.
Implementation Method 1
the interlayer is a layer formed by using a triazine compound having at least one of a M-OH group (wherein M is a metal atom or a silicon atom) and a group capable of forming the M-OH group, at least one of an amino group and a mercapto group, and a triazine ring
Implementation Method 2
the surface layer is a layer formed by using a fluorinated ether compound having a poly(oxyperfluoroalkylene) chain... the laminate achieves a small water sliding angle and improved fingerprint removability
Data Source
AI summary
To provide a laminate having a surface layer with a small water sliding angle.A laminate comprising a substrate, an interlayer formed on the substrate, and a surface layer formed on the interlayer,wherein the interlayer is a layer formed by using a triazine compound having at least one of a M-OH group (wherein M is a metal atom or a silicon atom) and a group capable of forming the M-OH group, at least one of an amino group and a mercapto group, and a triazine ring, andthe surface layer is a layer formed by using a fluorinated ether compound having a poly(oxyperfluoroalkylene) chain, and at least one of a hydrolyzable group bonded to a silicon atom and a hydroxy group bonded to a silicon atom.