Graphene Composition Liquid Crystalline Phase High Yield
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Solution Overview
Problem
Existing materials, such as carbon nanotubes and graphite, used to impart liquid crystalline properties have limitations due to low yields, varying metallic and semiconducting characteristics, and difficulty in separation, which restricts their application in various fields.
Innovation Solution
A graphene composition with liquid crystalline properties is developed by uniformly dispersing graphene in a medium, ensuring chemical and physical stability, wide temperature range liquid crystal phase, and compatibility with other compounds, allowing for controlled orientation using external fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If carbon nanotubes are used to impart liquid crystalline properties, then the material exhibits anisotropic properties and fluidity, but the yield is low and separation is difficult
Solution Approach 1:
The patent extracts the essential liquid crystalline properties from carbon nanotubes and transfers them to graphene oxide, which can be produced in much higher yields. By taking out the functional requirement (liquid crystalline behavior) from the problematic material (carbon nanotubes) and implementing it in a superior alternative (graphene oxide), the patent resolves the contradiction between achieving desired properties and maintaining high productivity.
Solution Approach 2:
The patent changes the material parameter from carbon nanotubes to graphene oxide, which fundamentally alters the production yield while maintaining the liquid crystalline functionality. This parameter change allows the system to achieve the same adaptability (liquid crystalline properties) with dramatically improved productivity (higher yield and easier separation).
2Reliability
If single wall carbon nanotubes are separated to obtain desired characteristics, then the electrical properties can be optimized, but the separation process is very difficult
Solution Approach 1:
The patent extracts the electrical property optimization requirement from the complex carbon nanotube separation problem and implements it directly with graphene oxide, which inherently provides uniform electrical characteristics without requiring difficult separation processes. This takes out the problematic separation step while retaining the desired electrical property optimization.
Solution Approach 2:
The patent replaces the expensive and difficult-to-process single wall carbon nanotubes with a more readily available and easier-to-manage graphene oxide material that achieves the same electrical property optimization without requiring complex separation procedures, effectively using a superior alternative that eliminates the manufacturing difficulty.
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 graphene composition exhibits anisotropic optical, dielectric, and mechanical properties, enabling wide-range applications, including nanocomposites, energy storage, and photonics, while being chemically and physically stable and cost-effective.
Implementation Method 1
graphene oxide composition having liquid crystalline properties
Implementation Method 2
exhibits anisotropic optical, dielectric, and mechanical properties
Implementation Method 3
Due to the dielectric anisotropy or shape of the mesogen, liquid crystals are readily arranged by an external field
Implementation Method 4
the anisotropy of each of the mesogens macroscopically appears, and the direction of polarized light is changed
Data Source
AI summary
The present invention relates to a graphene composition having liquid crystalline properties and a preparation method thereof, and more particularly to a graphene composition wherein graphene having useful electrical properties is uniformly dispersed in a medium, whereby it is chemically and physically stable, exhibits a liquid crystal phase in a wide temperature range and has good compatibility with other compounds, and to a preparation method thereof. In the graphene composition, liquid crystalline properties are imparted to graphene, which can be produced in large amounts and has excellent mechanical, chemical and electrical properties, and thus the graphene composition can provide a chance to apply functional carbon materials in various fields, including nanocomposites, energy storage materials, and photonics.