Fluorine Cleaning Composition for Plastic Safety and Dryability
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Solution Overview
Problem
Conventional cleaning agents, such as those containing hydrocarbon-based solvents, are hazardous due to their flammability and erode plastic base materials, making them unsuitable for safe and effective cleaning of industrial parts.
Innovation Solution
A cleaning composition comprising cis-1-chloro-3,3,3-trifluoropropene and a fluorine-based solvent with specific properties, used in a predetermined mass ratio, which is hydrocarbon-based solvent-free, reducing erodibility to plastic materials, enhancing dryability, and ensuring nonflammability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydrocarbon-based solvents are used for cleaning, then cleaning effectiveness is improved, but flammability increases and safety deteriorates
Solution Approach 1:
The patent changes the chemical composition parameters by using fluorine-based solvents with specific boiling points (65-80°C) and specific gravities (1.55-1.65) instead of hydrocarbon-based solvents. This parameter change achieves nonflammability while maintaining cleaning effectiveness, directly resolving the safety-flammability contradiction
Solution Approach 2:
The patent creates a composite cleaning composition by combining component (A) cis-1-chloro-3,3,3-trifluoropropene with component (B) fluorine-based solvent having specific gravity 1.55-1.65 in a mass ratio of 85:15 to 45:55. This composite formulation achieves both nonflammability and reduced erodibility to plastic materials simultaneously
2Reliability
If fluorine-based solvent with high specific gravity is used, then nonflammability is improved, but erodibility to plastic materials increases
Solution Approach 1:
The patent precisely controls the specific gravity parameter of component (B) within the range of 1.55-1.65 and combines it with component (A) in specific mass ratios (85:15 to 45:55). This parameter optimization reduces erodibility to plastic base materials while maintaining nonflammability, resolving the contradiction between safety and material compatibility
Solution Approach 2:
The patent applies different functional properties to different components: component (A) provides cleaning effectiveness and component (B) provides nonflammability and controlled erodibility. By assigning specific local qualities to each component and optimizing their combination, the patent resolves the contradiction between nonflammability and plastic material compatibility
3Productivity
If conventional cleaning agents are used, then cleaning effectiveness is improved, but dryability deteriorates due to poor evaporation
Solution Approach 1:
The patent optimizes the boiling point parameter of component (B) to be within 65-80°C, which balances evaporation rate and cleaning effectiveness. This parameter change enables suitable dryability while maintaining effective contaminant removal, resolving the contradiction between cleaning performance and drying time
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 cleaning composition effectively removes contaminants from industrial parts without eroding plastic materials, offering suitable dryability and nonflammability, thus addressing the hazards and inefficiencies of conventional cleaning agents.
Implementation Method 1
the cleaning agent has poor workability due to its low dryability
Data Source
AI summary
A cleaning composition has reduced erodibility to members having plastic base materials, suitable dryability, and nonflammability. The cleaning composition contains components (A) and (B) below in a mass ratio between component (A) and component (B) of 85:15 to 55:45, and being hydrocarbon-based solvent-free: (A): cis-1-chloro-3,3,3-trifluoropropene; and (B): a fluorine-based solvent having a boiling point of 65° C. to 80° C. and a specific gravity of 1.55 to 1.65, excluding component (A).