Fluorine-Containing Composition for Low Refractive Index Optical Applications
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Solution Overview
Problem
Current fluorine-containing polymers with structural units containing fluorine-containing aliphatic rings struggle to achieve a low enough refractive index for expanded applications, and adjusting the composition ratio of these polymers to achieve a desired refractive index is difficult and costly.
Innovation Solution
A fluorine-containing composition comprising a mixture of two or more fluorine-containing polymers, each with a structural unit having a fluorine-containing aliphatic ring with one, two, or three ethereal oxygen atoms, which are uniformly mixed to achieve a lower refractive index than the sum of individual polymers, using an aprotic solvent for dissolution and mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a single fluorine-containing polymer with structural units containing fluorine-containing aliphatic rings is used, then the polymer can be produced with a specific refractive index, but the refractive index cannot be reduced sufficiently for expanded applications
Solution Approach 1:
The patent combines multiple fluorine-containing polymers with different structural units containing fluorine-containing aliphatic rings (such as dioxolane, dioxane, or trioxane rings) into a composite material system. By blending polymers with different refractive indices and structural characteristics, the composition achieves a lower overall refractive index than individual polymers, thereby expanding application range in optical devices while maintaining compositional stability.
2Stability of the object's composition
If the composition ratio of fluorine-containing polymers is adjusted to achieve a desired refractive index, then the refractive index can be optimized, but the production cost and complexity increase
Solution Approach 1:
The patent systematically varies parameters such as the types of fluorine-containing aliphatic rings (dioxolane, dioxane, trioxane), the number of ethereal oxygen atoms (1-3 atoms), and the ratios of different polymer components to achieve desired refractive indices. By establishing parameter ranges and relationships, the patent enables cost-effective production through optimized formulations that balance performance requirements with manufacturing simplicity.
Data Source
AI summary
A primary object of the present disclosure is to provide: a fluoropolymer composition that has a low refraction index and that comprises a structural unit having a fluorine-containing aliphatic ring, the fluorine-containing aliphatic ring having one, two, or three ethereal oxygen atoms as ring-constituting atoms; a production method therefor; and the like. The present disclosure relates to a fluorine-containing composition comprising two or more fluorine-containing polymers (A), each containing as a main component a structural unit having a fluorine-containing aliphatic ring, the fluorine-containing aliphatic ring having one, two, or three ethereal oxygen atoms as ring-constituting atoms; and the like.