Functional Filament Nanoparticle Dispersion for Ultrafine Soft Fibers
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Solution Overview
Problem
Existing methods fail to produce functional filaments with micrometer dimensions due to the size limitation of functional particles, resulting in unsatisfactory softness and texture in fabrics made from twisted fibers.
Innovation Solution
A functional filament with a cross-sectional diameter ranging from 1 µm to 30 µm is produced by dispersing functional nanoparticles, such as Au, Ag, Ti, Ge, Zn, Al, Mg, Si, Cu, Ca, Fe, Ba, K, Na, Mn, Ni, and Pt, within a polymer matrix, using a core-shell structure to enhance compatibility and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If functional particles are ground to reduce size, then functional properties are improved, but filament diameter cannot reach micrometer scale
Solution Approach 1:
The invention transitions from controlling particle size in one dimension to controlling the overall filament diameter through a different dimensional approach. By using nanoparticles (1-100 nm) as fillers within a polymer matrix and controlling the filament drawing process, the invention achieves micrometer-scale filament diameters (1-30 μm) without being constrained by the original particle size of functional materials.
Solution Approach 2:
The invention changes the size parameter of functional particles from micrometer scale to nanometer scale (1-100 nm), and simultaneously changes the filament diameter parameter to micrometer scale (1-30 μm). This parameter transformation resolves the contradiction by using much smaller nanoparticles that can be easily dispersed in the polymer matrix while enabling the production of ultrafine filaments with desired micrometer dimensions.
2Ease of operation
If filament diameter is reduced to micrometer scale, then fabric softness and texture are improved, but functional particle size becomes a limiting factor
Solution Approach 1:
The invention changes the functional particle size parameter to nanometer scale (1-100 nm), which is sufficiently small to not interfere with the ultrafine filament structure while maintaining functional properties. This parameter change enables the production of filaments with diameters of 1-30 μm that provide soft fabric texture, resolving the contradiction between fabric softness and functional particle size limitations.
Solution Approach 2:
The invention applies local quality by using nanoparticles with specific functional properties (such as far-infrared radiation) dispersed within the polymer matrix. The nanoparticles are concentrated in specific regions within the filament structure, providing localized functional enhancement without compromising the overall ultrafine structure and softness of the resulting fabric.
3Manufacturing precision
If functional nanoparticles are dispersed in polymer matrix, then ultrafine filament structure is achieved, but particle dispersion uniformity becomes challenging
Solution Approach 1:
The invention changes the particle size parameter to nanometer scale (1-100 nm), where Brownian motion and surface effects dominate, facilitating uniform dispersion in the polymer matrix. The small size of nanoparticles compared to micrometer-scale particles enables them to distribute more uniformly throughout the matrix during the extrusion and drawing processes, achieving both precise filament dimensions and composition stability.
Solution Approach 2:
The invention uses the polymer matrix as an intermediary medium that facilitates uniform dispersion of nanoparticles. The matrix acts as a carrier that distributes nanoparticles evenly throughout the filament structure during processing. Additionally, surface modification of nanoparticles with compatibilizers or coupling agents serves as an intermediary mechanism to enhance interfacial adhesion and prevent nanoparticle aggregation, ensuring uniform dispersion.
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 ultrafine functional fibers achieve a satisfactory level of softness and texture, suitable for infant garments or underwear, with enhanced far-infrared radiation for improved blood circulation and metabolism.
Implementation Method 1
far-infrared fibers containing far-infrared radiation particles have experienced significant growth. Far-infrared fibers can facilitate blood circulation and metabolism.
Data Source
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AI summary
A functional filament is provided. The functional filament comprises a polymer matrix and functional nanoparticles dispersed within the polymer matrix. The functional filament has a cross-sectional diameter ranging from 1 µm to 30 µm, and the functional nanoparticles comprise element(s) selected from the group consisting of Au, Ag, Ti, Ge, Zn, Al, Mg, Si, Cu, Ca, Fe, Ba, K, Na, Mn, Ni, Ga, Pt, and combinations thereof.