Amorphous Fluorine Resin Coating Using Low GWP Alkoxy Solvent
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Solution Overview
Problem
Perfluoro polymers used in various applications have high global warming potential due to fluorine-containing solvents like perfluoroalkane and hydrofluorocarbon, which do not meet environmental protection requirements.
Innovation Solution
An amorphous fluorine-containing resin composition is developed using alkoxy fluoroalkene as a solvent, which has a lower global warming potential and improved film-forming ability, allowing for the formation of thin films without adverse environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If perfluoroalkane or hydrofluorocarbon solvents are used to dissolve amorphous fluorine resin, then the resin can be dissolved and applied, but the global warming potential increases significantly
Solution Approach 1:
The patent changes the chemical structure parameters of the solvent by introducing fluorinated cyclic ether structures with specific ring sizes (5-8 carbons) and fluorine substitution patterns. This structural modification maintains the solvent's ability to dissolve amorphous fluorine resin while reducing its global warming potential compared to conventional perfluoroalkane solvents.
Solution Approach 2:
The patent employs composite solvent systems that combine fluorinated cyclic ether structures with specific molecular configurations. These composite molecular structures achieve both solubility requirements and environmental performance by integrating multiple functional groups (ether oxygens, fluorine atoms in cyclic structures) that work synergistically.
2Quantity of substance
If conventional fluorinated solvents are used, then the resin solution can be formed, but the film-forming ability is insufficient
Solution Approach 1:
The patent optimizes physical parameters of the solvent including boiling point (80-120°C range), molecular weight, and fluorine content to achieve optimal film-forming properties. The specific cyclic ether structure provides controlled evaporation rates that enable uniform film formation without pinholes or defects.
Solution Approach 2:
The fluorinated cyclic ether acts as an intermediary substance that mediates between the amorphous fluorine resin and the substrate. Its molecular structure provides both solvation capability for the resin and controlled volatility for film formation, serving as a bridge that enables successful coating.
3Loss of time
If the solvent is removed quickly from the thin film surface, then environmental impact is reduced, but the surface may be damaged by hot air
Solution Approach 1:
The patent carefully selects solvents with boiling points in the 80-120°C range, which allows for relatively quick evaporation without requiring excessive heating. This temperature parameter optimization enables solvent removal that is both time-efficient and gentle enough to prevent substrate damage from hot air exposure.
Solution Approach 2:
The patent employs a solvent removal process that skips prolonged heating by utilizing the optimized volatility of the fluorinated cyclic ether. The solvent evaporates rapidly at moderate temperatures, rushing through the removal process before hot air damage can occur to the substrate.
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 amorphous fluorine-containing resin composition effectively forms thin films on surfaces with minimal environmental impact, as the solvent is easily removed without damaging the surface, and the films exhibit superior film-forming properties.
Implementation Method 1
amorphous fluorine-containing resin dissolved in alkoxy perfluoroalkene
Implementation Method 2
drying after applying the composition on the base materials
Data Source
AI summary
[Problem] To provide: an amorphous fluorine-containing resin composition that has superior film-forming ability, has little impact on the global environment due to the very small global warming potential thereof, and can fully satisfy requirements from the perspective of global environmental protection; and an article that contains a coating formed from thin film comprising the amorphous fluorine-containing resin. composition. [Solution] An amorphous fluorine-containing resin composition in which an amorphous fluorine-containing resin has been dissolved in alkoxy fluoroalkene. The present invention also provides an article that contains a coating formed from thin film comprising the amorphous fluorine-containing resin composition.