Fluorinated Ether Composition Abrasion Resistance
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Solution Overview
Problem
Existing fluorinated ether compositions used for surface treatment lack sufficient abrasion resistance, leading to a decrease in water/oil repellency when subjected to repeated abrasion.
Innovation Solution
A fluorinated ether composition comprising specific fluorinated ether compounds, produced through a method involving a hydrosilylation reaction with a transition metal catalyst, is used to form a surface-treated layer that maintains excellent water/oil repellency and abrasion resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fluorinated ether composition with a poly(oxy perfluoroalkylene) chain is used for surface treatment, then water/oil repellency and flexibility are improved, but abrasion resistance deteriorates
Solution Approach 1:
The patent changes the chemical composition parameters by incorporating specific fluorinated ether compounds with controlled molecular weights and functional groups. The composition uses compounds having poly(oxy perfluoroalkylene) chains with specific structural parameters that balance flexibility and adhesion, thereby maintaining water/oil repellency while improving abrasion resistance through optimized molecular characteristics
Solution Approach 2:
The patent creates a composite surface treatment system by combining multiple fluorinated ether compounds with different functional characteristics in a specific composition ratio. This composite approach allows the surface layer to exhibit both the flexibility needed for stain removability and the adhesion required for abrasion resistance, resolving the contradiction between softness and durability
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 imparts excellent water/oil repellency and abrasion resistance to substrates, ensuring that the repellency is not significantly lowered even after repeated abrasion.
Implementation Method 1
a method involving a hydrosilylation reaction with a transition metal catalyst
Implementation Method 2
hydrosilylation reaction with a transition metal catalyst
Implementation Method 3
impart excellent water/oil repellency on the surface of a substrate
Data Source
AI summary
To provide a fluorinated ether composition useful for surface treatment to impart water/oil repellency to the surface of a substrate, a method for producing the fluorinated ether composition, and a coating liquid containing the fluorinated ether composition, as well as a substrate having a surface-treated layer, and a method for producing the same. Said composition comprises at least two fluorinated ether compounds which are represented by A-O-Q-(CbF2bO)d—X—O—B10 and which are different in B10. X is a divalent organic group having no CF2O. B10 is —CH2CH2CH2SiLmRn, —CH2CH(SiLmRn)CH3, —CH2CH═CH2 or —CH═CHCH3. A is a perfluoroalkyl group or group B10. Of the total of group B10 in said composition, the proportion of —CH2CH2CH2SiLmRn is from 90 to 99 mol %, and the proportion of —CH═CHCH3 is from 1 to 10 mol %. L is a hydrolyzable group, and R is a monovalent hydrocarbon group. b is an integer of from 1 to 10, and d is an integer of from 1 to 200.