Aromatic Carbonyl Nanocoating to Replace Fluorocarbon Plasma Coatings
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Solution Overview
Problem
Existing protective coatings for substrates, particularly those using fluorocarbons, have environmental drawbacks and safety concerns due to by-product HF production and high costs, while offering limited durability and efficiency in resisting liquids and temperature extremes.
Innovation Solution
A polymeric nanocoating comprising aromatic and carbonyl moieties formed through a plasma deposition process using unsaturated monomeric species, which provides enhanced barrier properties and durability without fluorine, thereby improving environmental impact and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fluorocarbon-based plasma polymerisation is used to form water repellent coatings, then water repellence and coating thickness are improved, but environmental impact deteriorates and HF by-product is produced
Solution Approach 1:
The patent changes the chemical composition parameters of the monomer from fluorocarbon-based to aromatic carbonyl-based compounds. This parameter change maintains the water repellent properties through aromatic stacking interactions while eliminating the production of HF by-products and improving environmental compatibility.
Solution Approach 2:
The patent extracts and removes the fluorocarbon components from the coating system while retaining the essential water repellent functionality. By using aromatic carbonyl compounds instead, the harmful fluorine element is completely taken out of the system, eliminating environmental damage while preserving the protective function.
2Reliability
If fluorocarbon-based plasma polymerisation is used, then water repellence is improved, but process safety deteriorates due to HF production
Solution Approach 1:
The patent changes the chemical parameters of the deposition process by substituting fluorocarbon monomers with aromatic carbonyl monomers. This change eliminates the generation of HF by-products, thereby improving process safety while maintaining the water repellent performance through alternative molecular interactions.
3Length of stationary object
If conventional wet chemistry techniques are used to apply protective coatings, then coating thickness and coverage are improved, but manufacturing efficiency deteriorates
Solution Approach 1:
The patent replaces the mechanical wet chemistry application methods (brushing, spraying, dipping) with a plasma-based deposition process. This substitution enables conformal coating formation through plasma chemistry rather than mechanical application, improving manufacturing efficiency while achieving comparable or superior coating thickness and coverage.
4Object-affected harmful factors
If aromatic carbonyl monomers are used in plasma deposition, then environmental impact is improved and HF production is eliminated, but coating formation mechanism changes
Solution Approach 1:
The patent changes the chemical parameters of the monomer from fluorocarbon to aromatic carbonyl compounds. While this changes the molecular interaction mechanism from fluorocarbon-based to aromatic stacking-based water repellence, it simplifies the overall system by eliminating hazardous by-products and improving environmental compatibility.
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 nanocoating offers superior resistance to liquids and improved durability, ensuring effective protection of substrates while reducing environmental harm and manufacturing costs.
Implementation Method 1
form a protective coating via a plasma deposition process using unsaturated monomeric species
Implementation Method 2
the coating comprises (i) aromatic moieties and (ii) carbonyl moieties
Data Source
Figure 1
AI summary
The present invention relates to a method for forming a polymeric nanocoating on a substrate as well as substrates bearing the polymeric nanocoating. The method comprises exposing the substrate to a plasma comprising one or more unsaturated monomeric species for a period of time sufficient to allow the coating to form on the substrate. The one or more unsaturated monomeric species comprise (i) an aromatic moiety and (ii) a carbonyl moiety. The one or more unsaturated monomeric species also comprise a crosslinking reagent.