Fluorinated Ether Lubricant Solubility in HCFO
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Solution Overview
Problem
Hydrochlorofluoroolefins have insufficient solubility for fluorinated ether compounds with perfluoropolyether chains and CF3 groups at both terminals, particularly when the perfluoropolyether chain lacks a branched structure, limiting their use in forming uniform lubricant coating films with minimal environmental impact.
Innovation Solution
A lubricant solution comprising a hydrochlorofluoroolefin and specific solvents like 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorohexane, nonafluorobutyl methyl ether, and 3-methoxy-4-trifluoromethyl-1,1,2,2,3,4,5,5-decafluoropentane, combined with a fluorinated ether compound having a perfluoropolyether chain without a branched structure, enhances solubility and allows for the formation of a uniform coating film.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If hydrochlorofluoroolefin is used as solvent, then environmental impact is reduced, but solubility of fluorinated ether compound deteriorates
Solution Approach 1:
The patent introduces a co-solvent system where hydrofluorocarbon acts as an intermediary substance that bridges the solubility gap. The hydrofluorocarbon component specifically interacts with the fluorinated ether compound to enhance solubility, while the hydrochlorofluoroolefin maintains the environmentally friendly profile, thus mediating between environmental requirements and solubility needs
Solution Approach 2:
The patent creates a composite solvent system combining hydrochlorofluoroolefin and hydrofluorocarbon in specific proportions. This composite approach leverages the environmental benefits of hydrochlorofluoroolefin while incorporating the superior solubility properties of hydrofluorocarbon, achieving a synergistic effect that resolves the contradiction between environmental impact and solubility
2Object-affected harmful factors
If hydrochlorofluoroolefin is used as solvent, then environmental impact is reduced, but uniformity of coating film deteriorates
Solution Approach 1:
The hydrofluorocarbon co-solvent acts as a mediator that ensures uniform distribution and evaporation characteristics. It facilitates the formation of a homogeneous coating solution that dries uniformly, while the hydrochlorofluoroolefin maintains the environmentally friendly profile, thus mediating between environmental requirements and coating uniformity
Solution Approach 2:
The patent optimizes the compositional parameters of the solvent system, specifically the ratio of hydrochlorofluoroolefin to hydrofluorocarbon, to achieve optimal coating uniformity. By adjusting these parameters within specified ranges, the patent ensures both environmental benefits and manufacturing precision of uniform coating films
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 solution achieves excellent solubility and forms a uniform lubricant coating film with a small environmental impact, using hydrochlorofluoroolefins and specific solvents to dissolve fluorinated ether compounds, thereby addressing the solubility issues and environmental concerns.
Implementation Method 1
a lubricant solution comprising a solvent composition which comprises a hydrochlorofluoroolefin and at least one member selected from the group consisting of 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorohexane, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane, nonafluorobutyl methyl ether, nonafluorobutyl ethyl ether and 3-methoxy-4-trifluoromethyl-1,1,1,2,2,3,4,5,5,5-decafluoropentane, and a fluorinated ether compound
Implementation Method 2
a method for producing a substrate provided with a lubricant coating film, which comprises applying the lubricant solution as defined in any one of [1] to 6] to a substrate, and then evaporating the solvent composition to form a coating film of the fluorinated ether compound on the surface of the substrate
Data Source
AI summary
To provide a lubricant solution capable of forming a uniform coating film by using a solvent composition which has a small impact on the global environment and which is excellent in solubility of the fluorinated ether compound, and a method for producing a substrate provided with a lubricant coating film.A lubricant solution comprising a solvent composition which comprises a HCFO and at least one member selected from the group consisting of 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorohexane, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane, nonafluorobutyl methyl ether, nonafluorobutyl ethyl ether and 3-methoxy-4-trifluoromethyl-1,1,1,2,2,3,4,5,5,5-decafluoropentane, and a fluorinated ether compound which is a fluorinated ether compound having a perfluoropolyether chain and CF3 groups at both terminals, wherein the perfluoropolyether chain does not have a branched structure.