Graphene-Polymer Electrospun Filter for Antibiosis and Pressure Control
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Solution Overview
Problem
Existing filter fabrication methods fail to produce filters with superior antibiosis and three-dimensional shapes efficiently, which are necessary for applications in water purifiers, air cleaners, and medical devices.
Innovation Solution
A method involving the fabrication of a graphene-containing or graphene oxide-containing solution, mixing with a polymer to form a graphene-polymer mixed solution, electrospinning onto a three-dimensional collector, and separating the resulting graphene-polymer complex filter, which can have specific patterns and structures for enhanced antibiosis and pressure control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional filter fabrication methods are used, then the manufacturing process is simple, but the filter cannot achieve superior antibiosis and three-dimensional shape
Solution Approach 1:
The patent combines graphene particles with polymer materials to create a composite filter structure. The graphene-polymer composite provides superior antibiosis properties while maintaining ease of manufacture through the electrospinning process, which can incorporate both materials into a unified three-dimensional filter structure.
Solution Approach 2:
The patent applies graphene particles specifically within the polymer matrix to enhance antibiosis in critical areas of the filter. This localized application of graphene ensures superior antibiosis performance where needed while keeping the overall manufacturing process relatively simple through the integrated electrospinning approach.
2Shape
If conventional filter fabrication methods are used, then the manufacturing process is simple, but the filter cannot achieve three-dimensional shape
Solution Approach 1:
The patent transitions from conventional two-dimensional filter structures to three-dimensional shapes by utilizing the electrospinning process. This method allows the formation of nanofibers that can be collected on a three-dimensional collector, creating filters with complex geometries including cylinders, cones, and other spatial configurations that cannot be achieved with traditional flat filtration methods.
3Reliability
If graphene particles are combined with polymer nanofibers, then superior antibiosis is achieved, but the fabrication process becomes more complex
Solution Approach 1:
The patent merges the graphene particle incorporation step with the polymer nanofiber formation process through electrospinning. By combining these materials into a single mixed solution that is then electrospun, the fabrication process integrates multiple functions (polymer structure formation, graphene distribution, and antibiosis enhancement) into one unified process, reducing overall process complexity despite the advanced functionality achieved.
4Reliability
If patterns are formed to control pressure differences, then filter performance is enhanced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent replaces traditional mechanical patterning methods with electrostatic field-based electrospinning to create patterns that control pressure differences. The electrostatic forces during electrospinning naturally form specific fiber arrangements and patterns without requiring complex mechanical tooling or high-precision mechanical alignment, thereby achieving patterned filter structures with enhanced performance while managing manufacturing precision requirements through field-based control rather than mechanical precision.
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
This method allows for the easy fabrication of filters with superior antibiosis and three-dimensional shapes, enabling effective use in various applications by combining graphene particles with polymer nanofibers, and allows for the formation of patterns that control pressure differences, enhancing filter performance.
Implementation Method 1
forming a three dimensional graphene•polymer complex filter by electrospinning the mixed solution to a surface of the collector
Data Source
AI summary
Provided are a filter fabrication method and the filter formed thereby. In this method, a three-dimensional graphene polymer complex filter can be easily fabricated. By forming various patterns at a surface of a collector, patterns can be simply formed at a surface of a filter. This provides advantages at control of pressure difference which can be one of the very important factors necessary for designing and fabricating a filter. Since the filter includes graphene particles homogeneously combined to the polymer nanofiber, the filter can represent a superior antibiosis.