Journal
POLYMER
Volume 74, Issue -, Pages 182-192Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2015.08.002
Keywords
Ejection mode; Phase separation; Nanonets
Categories
Funding
- National Natural Science Foundation of China [51322304, 51173022]
- National Basic Research Program of China (973 Program) [2012CB525005]
- 'DHU Distinguished Young Professor Program'
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Numerical models that are capable to quantitatively elaborate the formation of novel two-dimensional (2D) nanonets during electrospinning/netting would have broad technological implications for areas ranging from sensing devices and individual protection to industrial filtration and separation; however, creating such models has proved extremely challenging. Here we report novel numerical models for clarifying the origin, evolution, and regulation of the nanonets via combining the ejection modes of Taylor cone apex and the phase separation of charged droplets. Our models propose two critical condition formulas for the generation of jets and droplets, and a LCST phase diagram combined with concentration sweep paths for the nanonets or non-porous films. The resulting model predications exhibit excellent agreement with the experimental results obtained via varying the solution properties and process parameters. The successful model derivation for the nanonets formation may provide new insights into the design and development of 2D multifunctional nanomaterials for various applications. (C) 2015 Elsevier Ltd. All rights reserved.
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