Fiber Drawing Process
Fiber Drawing Process - Related Videos
11:57
Fabricating Metamaterials Using the Fiber Drawing Method
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Cited by 23 •
2012
Metamaterials at terahertz frequencies offer unique opportunities, but are challenging to fabricate in bulk. We adapt the fabrication procedure for microstructured polymer optical fibers to inexpensively fabricate metamaterials potentially on an industrial scale. We produce polymethylmethacrylate fibers containing ~10 μm diameter indium wires separated by ~100 μm, which exhibit a terahertz plasmonic response.
06:22
Motor Learning in Mirror Drawing
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Colloquially, the terms learning and memory encompass a broad range of behaviors and mental systems, everything from learning to tie a shoe to mastering calculus (and a lot in between). Experimental psychologists have divided up learning mechanisms into groups that seem to have different properties, and that seem to rely on different brain systems. A major division is between declarative and non-declarative memory, roughly, the...
08:28
Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers
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Cited by 6 •
2017
A protocol for the microfluidic spinning and microstructure characterization of regenerated silk fibroin monofilament is presented.
16:23
Fiber Connections of the Supplementary Motor Area Revisited: Methodology of Fiber Dissection, DTI, and Three Dimensional Documentation
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Cited by 32 •
2017
The purpose of this study is to show each step of the fiber dissection technique on human cadaveric brains, the 3D documentation of these dissections, and the diffusion tensor imaging of the anatomically dissected fiber pathways.
01:16
Drawing Free-body Diagrams: Rules
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2023
The first step in describing and analyzing most phenomena in physics involves the careful drawing of a free-body diagram. Free-body diagrams are useful in analyzing forces acting on an object or system, and are employed extensively in the study and application of Newton's laws of motion. The steps to draw a free-body diagram are listed below: • Draw the object under consideration. If treating the object as a particle, represent the object as a point. Place this point at the origin of a...
FAQs
Tension promotes alignment of polymer chains along the fiber axis, creating a more ordered molecular arrangement than in the extruded filament. This orientation helps explain the resulting increase in tensile strength and can also influence flexibility and dimensional stability. In chemistry research, controlling the applied stretch is therefore important for connecting molecular alignment with measurable fiber performance.
Heating increases polymer-chain mobility while the filament is being stretched, allowing molecular segments to respond to applied tension. Controlled cooling then helps preserve the resulting orientation and crystallinity as the fiber stabilizes. The balance between these conditions affects whether the final material develops the intended combination of strength, flexibility, dimensional stability, and barrier performance.
Polymer orientation and crystallinity provide a structural explanation for changes in fiber behavior after drawing. Alignment along the fiber axis is associated with greater tensile strength, while crystallinity contributes to retaining the organized structure during cooling. Together, these features help determine flexibility, dimensional stability, and barrier performance, allowing researchers to relate molecular structure to material function.
The process begins with an extruded polymer filament, which is stretched under controlled conditions. Heating may be applied to increase chain mobility during deformation, followed by controlled cooling to help preserve molecular orientation and crystallinity. Maintaining controlled tension, thermal conditions, and cooling is central to producing fibers with the intended uniformity and mechanical or barrier properties.
Researchers can examine how drawing changes tensile strength, flexibility, dimensional stability, and barrier performance. These outcomes provide practical evidence of how effectively the process produced molecular orientation and preserved crystallinity. Comparing these properties under different controlled conditions helps materials researchers identify relationships between polymer structure, processing conditions, and the performance required for a particular fiber application.
Drawn polymer fibers support several application areas, including synthetic textiles, reinforcing materials, filtration, packaging, and advanced composites. The relevant performance target depends on the use: strength may matter for reinforcement, barrier performance for packaging, and controlled structure or uniformity for specialized fibers. Chemistry and materials research uses these connections to tailor fibers for different functional requirements.