scholarly journals Enhanced Mechanical Damping in Electrospun Polymer Fibers with Liquid Cores: Applications to Sound Damping

2019 ◽  
Vol 1 (8) ◽  
pp. 2068-2076 ◽  
Author(s):  
Michael J. Bertocchi ◽  
Pearl Vang ◽  
Robert B. Balow ◽  
James H. Wynne ◽  
Jeffrey G. Lundin
Keyword(s):  
Polymer Fibers ◽  
Mechanical Damping

scholarly journals Melt-spun polymer fibers with liquid core exhibit enhanced mechanical damping

2016 ◽  
Vol 110 ◽  
pp. 685-692 ◽  
Author(s):  
Rudolf Hufenus ◽  
Laura Gottardo ◽  
A. Andrés Leal ◽  
Armin Zemp ◽  
Kurt Heutschi ◽  
...  
Keyword(s):  
Liquid Core ◽  
Polymer Fibers ◽  
Melt Spun ◽  
Mechanical Damping

Polarized microbeam FT-IR analysis of single fibers

1996 ◽  
Vol 54 ◽  
pp. 206-207
Author(s):  
Liling Cho ◽  
David L. Wetzel
Keyword(s):  
Molecular Orientation ◽  
Transition Point ◽  
Polymer Fibers ◽  
Single Fiber ◽  
Wire Grid ◽  
Polyester Fibers ◽  
Ft Ir ◽  
Ir Analysis ◽  
The Relationship ◽  
Wire Grid Polarizer

Polarized infrared microscopy has been used for forensic purposes to differentiate among polymer fibers. Dichroism can be used to compare and discriminate between different polyester fibers, including those composed of polyethylene terephthalate that are frequently encountered during criminal casework. In the fiber manufacturering process, fibers are drawn to develop molecular orientation and crystallinity. Macromolecular chains are oriented with respect to the long axis of the fiber. It is desirable to determine the relationship between the molecular orientation and stretching properties. This is particularly useful on a single fiber basis. Polarized spectroscopic differences observed from a single fiber are proposed to reveal the extent of molecular orientation within that single fiber. In the work presented, we compared the dichroic ratio between unstretched and stretched polyester fibers, and the transition point between the two forms of the same fiber. These techniques were applied to different polyester fibers. A fiber stretching device was fabricated for use on the instrument (IRμs, Spectra-Tech) stage. Tension was applied with a micrometer screw until a “neck” was produced in the stretched fiber. Spectra were obtained from an area of 24×48 μm. A wire-grid polarizer was used between the source and the sample.

Fabric Heater Made of Electroconductive Polymer Fibers

2015 ◽  
Vol 135 (9) ◽  
pp. 948-952
Author(s):  
Hiroaki Miura ◽  
Takashi Sunda ◽  
Mutsumi Kimura
Keyword(s):  
Polymer Fibers

Electrochemical Deposition of Copper on Polymer Fibers

2016 ◽  
Vol 7 (2) ◽  
pp. 132-138
Author(s):  
Seung-Lin Lim ◽  
Jaecheon Kim ◽  
Jongdeok Park ◽  
Sohee Kim ◽  
Jae-Joon Lee
Keyword(s):  
Electrochemical Deposition ◽  
Polymer Fibers

Functionalized Cellulose: PET Polymer Fibers with Zeolites for Detoxification Against Nerve Agents

2012 ◽  
Vol 27 (3) ◽  
pp. 332-336 ◽  
Author(s):  
Satya R Agarwal ◽  
Subramanian Sundarrajan ◽  
Seeram Ramakrishna
Keyword(s):  
Nerve Agents ◽  
Polymer Fibers

Tailorable and Flexible Conducting Films via Interfacial Modification of Polymer Fibers

2018 ◽  
Vol 3 (48) ◽  
pp. 13736-13742
Author(s):  
Baojun Ding ◽  
Siqi Wei ◽  
Huichao Zhu ◽  
Shengyang Tao
Keyword(s):  
Polymer Fibers ◽  
Interfacial Modification

Polymer entanglement drives formation of fibers from stable liquid bridges of highly viscous dextran solutions

Soft Matter ◽  
2021 ◽  
Author(s):  
Gurkaran Chowdhry ◽  
Yi Ming Chang ◽  
John P. Frampton ◽  
Laurent Kreplak
Keyword(s):  
Polymer Fibers ◽  
Liquid Bridges ◽  
Reptation Theory ◽  
Polymer Entanglement

Reptation theory explains the formation of 10 cm long polymer fibers from stable liquid bridges.

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