Abstract
| Original language | English |
|---|---|
| Title of host publication | Abstract book |
| Publisher | Institute of Physics IOP |
| Publication status | Published - 2012 |
| MoE publication type | Not Eligible |
| Event | Electrospinning, Principles, Possibilities and Practice 2012 - London, United Kingdom Duration: 21 Mar 2012 → 22 Mar 2012 http://www.iop.org/events/scientific/conferences/y/12/Electrospinning/programme.html (Conference programme) |
Conference
| Conference | Electrospinning, Principles, Possibilities and Practice 2012 |
|---|---|
| Country | United Kingdom |
| City | London |
| Period | 21/03/12 → 22/03/12 |
| Internet address |
|
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Keywords
- Electrospinning
- specialty fibres
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Sub-micron and nanosized specialty fibres by electrospinning. / Heikkilä, Pirjo; Pasanen, Antti; Kauranen, Pertti; Pere, Jaakko; Mahlberg, Riitta; Räsänen, Lea.
Abstract book. Institute of Physics IOP, 2012.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific
TY - CHAP
T1 - Sub-micron and nanosized specialty fibres by electrospinning
AU - Heikkilä, Pirjo
AU - Pasanen, Antti
AU - Kauranen, Pertti
AU - Pere, Jaakko
AU - Mahlberg, Riitta
AU - Räsänen, Lea
PY - 2012
Y1 - 2012
N2 - Electrospinning is a method that can be used in preparation of many kind of functional and technical fibre in submicron and nanosized range. Functionality can be obtained, for example, by adding different kind of fillers into electrospinning and/or by heat treatment of electrospun fibres. We have demonstrated preparation of precursor fibres for carbon and ceramic (TiO2 and BN) fibres from different substances. Precursors for carbonization have been prepared using polyacrylonitrile (PAN), PAN-carbon nanofibre (CNT) composites, as well as lignin. Selected precursors were carbonized. TiO2 fibres were prepared using fluidic titanates in electrospinning with polyvinyl pyrrolidone (PVP) and forming TiO2 in heat-treatment of blend fibres in O-containing atmosphere. For BN fibre preparation B2O3 powder was mixed into electrospinning solution with different polymers. Such precursor fibres could be transformed into BN by heat-treatment in N-containing atmosphere. Properties of electrospun fibres depend on the solutions properties as well as electrospinning conditions. In composite fibre production containing solid filler the major challenge is the dispersion of filler particles. When final fibrous product is obtained using thermal treatment even more variables are affecting the properties. In this presentation precursor processing challenges and properties of selected specialty fibres are discussed. Examples of precursors and heat-treated fibres are presented in Figure 1.
AB - Electrospinning is a method that can be used in preparation of many kind of functional and technical fibre in submicron and nanosized range. Functionality can be obtained, for example, by adding different kind of fillers into electrospinning and/or by heat treatment of electrospun fibres. We have demonstrated preparation of precursor fibres for carbon and ceramic (TiO2 and BN) fibres from different substances. Precursors for carbonization have been prepared using polyacrylonitrile (PAN), PAN-carbon nanofibre (CNT) composites, as well as lignin. Selected precursors were carbonized. TiO2 fibres were prepared using fluidic titanates in electrospinning with polyvinyl pyrrolidone (PVP) and forming TiO2 in heat-treatment of blend fibres in O-containing atmosphere. For BN fibre preparation B2O3 powder was mixed into electrospinning solution with different polymers. Such precursor fibres could be transformed into BN by heat-treatment in N-containing atmosphere. Properties of electrospun fibres depend on the solutions properties as well as electrospinning conditions. In composite fibre production containing solid filler the major challenge is the dispersion of filler particles. When final fibrous product is obtained using thermal treatment even more variables are affecting the properties. In this presentation precursor processing challenges and properties of selected specialty fibres are discussed. Examples of precursors and heat-treated fibres are presented in Figure 1.
KW - Electrospinning
KW - specialty fibres
M3 - Conference abstract in proceedings
BT - Abstract book
PB - Institute of Physics IOP
ER -