Fluorine Boric Acid Capsule Particles for Safe Fluorescence
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Solution Overview
Problem
Existing fluorine-containing compounds with long perfluoroalkyl chains are carcinogenic and lead to environmental pollution, while traditional fluorescent compounds lack degradability and surface modification capabilities.
Innovation Solution
Development of fluorine-containing boric acid composite capsule particles using a fluorine-containing alcohol with a perfluoroalkyl group of 6 or less carbon atoms, which undergoes condensation with boric acid and encapsulates a fluorescent guest compound, exhibiting fluorescence and surface characteristics like water- and oil-repellency without producing perfluorooctanoic acid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fluorine-containing compounds with long perfluoroalkyl chains are used to achieve water- and oil-repellency, then surface characteristics are improved, but carcinogenicity and environmental pollution increase
Solution Approach 1:
The patent changes the carbon chain length parameter from 7 or more carbon atoms (carcinogenic) to 6 or less carbon atoms (safe), while maintaining the perfluoroalkyl group's water- and oil-repellent properties. This parameter change resolves the contradiction by achieving the desired surface characteristics without the harmful effects of long-chain compounds.
Solution Approach 2:
The invention applies fluorine-containing alcohol with perfluoroalkyl groups locally on the surface of boric acid particles through coating, rather than using bulk long-chain fluorinated compounds. This localized application provides water- and oil-repellency while avoiding the carcinogenicity associated with long perfluoroalkyl chains.
2Illumination intensity
If traditional fluorescent compounds are used to achieve fluorescence characteristics, then fluorescence is achieved, but degradability and surface modification capabilities are lacking
Solution Approach 1:
The patent creates a composite material system consisting of boric acid particles coated with fluorine-containing alcohol and encapsulating fluorescent compounds. This composite structure combines the fluorescence of the guest compound with the degradability of short-chain fluorinated compounds and the surface modification capabilities of boric acid, resolving the limitations of traditional fluorescent compounds.
Solution Approach 2:
The fluorescent compound is encapsulated within the fluorine-containing boric acid composite capsule particles, creating a nested structure. This allows the fluorescent guest compound to maintain its fluorescence while being protected and potentially enhanced by the host matrix, which also provides degradability and surface modification capabilities.
3Object-affected harmful factors
If fluorine-containing alcohol with short perfluoroalkyl chains (6 or less carbon atoms) is used, then environmental friendliness is improved, but surface characteristics may be reduced
Solution Approach 1:
The patent uses a composite system where fluorine-containing alcohol with short perfluoroalkyl chains (6 or less carbon atoms) coats boric acid particles. The boric acid component enhances the surface characteristics and provides structural support, compensating for the reduced surface activity of short-chain fluorinated compounds, while maintaining environmental friendliness.
Solution Approach 2:
The invention merges fluorine-containing alcohol with short perfluoroalkyl chains and boric acid particles into a composite capsule particle system. This combination allows the short-chain fluorinated compound to provide environmental friendliness while the boric acid component contributes to surface characteristics and structural integrity, achieving both goals simultaneously.
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 particles demonstrate fluorescence and surface properties while being environmentally friendly due to their degradability and avoidance of harmful byproducts, maintaining water- and oil-repellency.
Implementation Method 1
a fluorine-containing alcohol, a guest compound, and boric acid particles, wherein the fluorine-containing alcohol is represented by the general formula: RF-A-OH [I]
Implementation Method 2
fluorine-containing boric acid composite capsule particles in which a guest compound is clathrated
Implementation Method 3
when a fluorine-based compound is used for surface treatment, surface modification can be applied for not only water-repellency, but also oil-repellency, due to characteristics of fluorine atoms
Data Source
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AI summary
Fluorine-containing boric acid composite capsule particles comprising a condensate of a fluorine-containing alcohol, a guest compound, and boric acid particles, wherein the fluorine-containing alcohol is represented by the general formula: RF-A-OH wherein RF is: a perfluoroalkyl group having 6 or less carbon atoms, a linear or branched perfluoroalkyl group containing a terminal perfluoroalkyl group having 6 or less carbon atoms and a perfluoroalkylene group having 6 or less carbon atoms, and containing an O, S, or N atom, or a polyfluoroalkyl group in which some of the fluorine atom or atoms of the perfluoroalkyl group are replaced by hydrogen atom or atoms, and which contains a terminal perfluoroalkyl group having 6 or less carbon atoms and a perfluoroalkylene group having 6 or less carbon atoms, wherein the perfluoroalkylene group may contain an O, S, or N atom, and one fluorine atom of the terminal perfluoroalkyl group may be replaced by -(CH2)fOH (wherein f is an integer of 1 to 3); and A is an alkylene group having 1 to 6 carbon atoms.