Controlling Thermoplastic Elastomer Optical Properties by Mechanical Processing
| Autor: | Paramjot Singh, Kunal H. Kate, Margaret N. Campbell, Cindy K. Harnett |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Optical fiber Thermoplastic Materials science Mechanical Engineering 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Cladding (fiber optics) Elastomer 01 natural sciences 0104 chemical sciences law.invention chemistry Mechanics of Materials law General Materials Science Extrusion Thermoplastic elastomer Composite material 0210 nano-technology Refractive index |
| Zdroj: | MRS Advances. 4:1341-1347 |
| ISSN: | 2059-8521 |
| DOI: | 10.1557/adv.2019.19 |
| Popis: | We demonstrate that the extrusion speed of thermoplastic urethane elastomer can modify its optical transmission by a factor of more than 100. Varying extrusion speed at constant temperature may tune optical properties along the axis of a filament, for example creating absorbent regions that are sensitive to length and diameter changes, surrounded by more transmissive segments that carry the sensor signal over long distances. Such waveguiding in a stretchable optical fiber requires a stretchable cladding with lower refractive index than the core. In experiments toward a rugged, stretchable fiber cladding, we investigated whether solvents could modify the outer structure of the filaments. Soaking the filaments in NMP (n-methyl-2-pyrrolidone), then stretching the filaments while the solvent dried, turned out to modify the filaments in a way that solvents alone did not, creating porosity and reducing the appearance of optical clarity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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