Vapor Phase Degreasing with Formula I Compounds
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Solution Overview
Problem
Current degreasing processes in manufacturing industries, such as those in automotive, aerospace, and electronics, often rely on environmentally harmful chemicals like Trichloroethylene (TCE), necessitating the need for more environmentally friendly alternatives that can effectively remove grease and oil contaminants from surfaces.
Innovation Solution
The use of vapor phase degreasing systems employing a fluid comprising compounds of Formula I, specifically 2-bromo-3,3,3-trifluoro-1-propene, which contacts and removes contaminants from surfaces, offering a nonflammable and environmentally friendly solution with low ozone depletion and global warming potential.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional degreasing agents like Trichloroethylene (TCE) are used, then effective degreasing performance is achieved, but environmental harm increases
Solution Approach 1:
The patent changes the chemical composition parameters by using compounds of Formula I with specific halogen substituents (R2, R3, R4 independently selected from halogen and hydrogen) and fluorinated groups (R5, R6, R7 independently selected from halogen and hydrogen where at least one is halogen). These parameter changes maintain effective degreasing performance while reducing environmental harm through low ozone depletion potential and low global warming potential compared to traditional agents like TCE
Solution Approach 2:
The patent employs a vapor phase degreasing system where the degreasing agent is applied as a vapor that contacts the surface, condenses, removes contaminants, and is then removed. This disposable-like approach with compounds of Formula I provides effective cleaning without the persistent environmental damage associated with traditional degreasing agents
2Object-affected harmful factors
If vapor phase degreasing with compounds of Formula I is used, then environmental friendliness is improved, but need for verification of effectiveness arises
Solution Approach 1:
The patent incorporates a vapor phase degreasing system that allows the degreasing agent to contact the surface, condense, and remove contaminants. The system enables verification of effectiveness through the cleaning process itself, where contaminants are removed and the surface is cleaned, providing feedback on the degreasing performance of compounds of Formula I
3Reliability
If nonflammable compounds are selected, then safety is improved, but limited chemical options remain
Solution Approach 1:
The patent defines a universal chemical structure (Formula I) that can accommodate multiple halogen and hydrogen combinations (R2, R3, R4 independently selected from halogen and hydrogen; R5, R6, R7 independently selected from halogen and hydrogen). This universal framework provides both safety through nonflammability and versatility through multiple valid chemical configurations within the formula
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 method effectively reduces contaminants on surfaces, including greases and oils, while being environmentally friendly, with compounds like 2-bromo-3,3,3-trifluoro-1-propene demonstrating significant degreasing ability and low environmental impact compared to traditional agents.
Implementation Method 1
step (a) is carried out by exposing the surface to a vapor comprising the compound of Formula I and condensing the vapor on the surface
Implementation Method 2
contacting a surface with a fluid comprising a compound of Formula I for a period of time; and removing the fluid from the surface
Data Source
AI summary
Methods for cleaning surfaces are provided. Such a method may comprise contacting a surface with a fluid comprising a compound of Formula I for a period of time; and removing the fluid from the surface, thereby providing a cleaned surface. Vapor phase degreasing systems for cleaning a surface of a component are also provided. Such a system may comprise a boil sump comprising liquid comprising a compound of Formula I; and a holder configured to hold a component in a vapor formed from the liquid.