Electroconductive Fiber Composite for Flexible Conductive Textiles
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Solution Overview
Problem
Electroconductive high-molecular polymers have low flexibility due to their low internal stress resistance, making it difficult to immobilize conductive threads and wires effectively.
Innovation Solution
Incorporating a carboneous material, such as carbon nanotubes, graphene, or metal nanoparticles, into an electroconductive polymer and an elastic polymer through noncovalent or covalent bonds to create fibers with increased internal stress resistance, either in an island-in-the-sea or double-layered structure, enhancing flexibility while maintaining conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electroconductive filling material is added to high-molecular polymers to produce electroconductive textures, then electroconductivity is improved, but flexibility and internal stress resistance deteriorate
Solution Approach 1:
The patent uses composite materials by combining electroconductive polymer particles with elastic polymer particles to form a fiber. This composite structure allows the electroconductive polymer to provide conductivity while the elastic polymer provides flexibility and internal stress resistance, resolving the contradiction between electroconductivity and flexibility.
Solution Approach 2:
The patent applies local quality by creating an island-in-the-sea structure where electroconductive polymer particles (islands) are dispersed within an elastic polymer matrix (sea). This localized distribution allows different regions to have different properties: conductive regions for electricity and elastic regions for flexibility, thus resolving the contradiction.
2Reliability
If electroconductive filling material is added to high-molecular polymers, then electroconductivity is improved, but internal stress resistance deteriorates
Solution Approach 1:
The fiber is constructed as a composite material with electroconductive polymer particles embedded in an elastic polymer matrix. The elastic polymer matrix provides the necessary internal stress resistance while the dispersed electroconductive particles maintain conductivity, resolving the contradiction between electroconductivity and internal stress resistance.
Solution Approach 2:
The patent changes the physical and chemical parameters of the fiber by controlling the particle size, concentration, and distribution of electroconductive polymer particles within the elastic matrix. By optimizing these parameters, the fiber achieves both sufficient electroconductivity and high internal stress resistance.
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 resulting electroconductive fibers exhibit improved internal stress resistance and flexibility, enabling their effective use in applications like bio-information capturing sensors without compromising conductivity.
Implementation Method 1
The carboneous material may be on the electroconductive polymer and the elastic polymer through a noncovalent bond
Implementation Method 2
the plurality of carbon nanotubes are connected to each other through a noncovalent (e.g., a hydrogen bond) or covalent bond (e.g., a chemical cross-linking bond)
Implementation Method 3
the plurality of carbon nanotubes are connected to each other through a noncovalent (e.g., a hydrogen bond) or covalent bond (e.g., a chemical cross-linking bond)
Implementation Method 4
The metal nanoparticles may be connected to the carboneous material through a dihydrogen bond
Data Source
AI summary
An electroconductive fiber, a method of manufacturing an electroconductive fiber, and a fiber complex including an electroconductive fiber are provided, the electroconductive fiber includes an electroconductive polymer, an elastic polymer that forms a structure with the electroconductive polymer, and a carboneous material on at least one of the electroconductive polymer and the elastic polymer.