Electrospun sheet materials from CA, PES and PLLA as supports for ALD coating

Research output: Contribution to conferenceConference articleScientificpeer-review

Abstract

Electrospinning is a method that can be used in the production of polymeric nanofibres. Polymer solution is drawn into sub-µm to nanosized fibres utilizing electric field. The structure of electrospun web has intrinsic properties such as small fibre diameter, small pore size, and high specific surface area which are beneficial for various applications. In addition, fibres can be functionalized in various methods. Thin (nm scale), conformal coatings made by atomic layer deposition (ALD) can be used for functionalization. For example, metal oxides can provide interesting properties, such as electronic, antimicrobial, self-cleaning and hydrophobic properties among others, to fibrous materials. Combining electrospinning and thicker ALD layer enables also preparation of sub-µm tubes, if core fibres are removed. Aim of this work was to make electrospun fibres from three polymers, cellulose acetate (CA), polyether sulphone (PES) and poly-L-lactide (PLLA) to be used as substrates for ALD. In this presentation we will report preparation electrospun fibres using solvent mixtures, structure of electrospun sheets (PLLA shown as an example), and preliminary results of ALD carried out on electrospun sheets, as well as discuss the possibilities of ALD method in functionalization and processing of electrospun fibres.
Original languageEnglish
Publication statusPublished - 2017
EventInternational Conference on Electrospinning : From Design and Processing to Advanced Nanomaterials and Applications, electrospinCY_2017 - Nicosia, Cyprus
Duration: 20 Apr 201722 Apr 2017

Conference

ConferenceInternational Conference on Electrospinning : From Design and Processing to Advanced Nanomaterials and Applications, electrospinCY_2017
Abbreviated titleelectrospinCY_2017
CountryCyprus
CityNicosia
Period20/04/1722/04/17

Fingerprint

Atomic layer deposition
Coatings
Fibers
Electrospinning
Polymer solutions
Nanofibers
polyether sulfone
acetylcellulose
poly(lactide)
Specific surface area
Oxides
Pore size
Cleaning
Polymers
Metals
Electric fields
Substrates
Processing

Keywords

  • electrospinning
  • atomic layer deposition

Cite this

Heikkilä, P., Rautkoski, H., Kenttä, E., Svärd, L., Vähä-Nissi, M., Virtanen, T., & Putkonen, M. (2017). Electrospun sheet materials from CA, PES and PLLA as supports for ALD coating. Paper presented at International Conference on Electrospinning : From Design and Processing to Advanced Nanomaterials and Applications, electrospinCY_2017, Nicosia, Cyprus.
Heikkilä, Pirjo ; Rautkoski, Hille ; Kenttä, Eija ; Svärd, Laura ; Vähä-Nissi, Mika ; Virtanen, Tommi ; Putkonen, Matti. / Electrospun sheet materials from CA, PES and PLLA as supports for ALD coating. Paper presented at International Conference on Electrospinning : From Design and Processing to Advanced Nanomaterials and Applications, electrospinCY_2017, Nicosia, Cyprus.
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title = "Electrospun sheet materials from CA, PES and PLLA as supports for ALD coating",
abstract = "Electrospinning is a method that can be used in the production of polymeric nanofibres. Polymer solution is drawn into sub-µm to nanosized fibres utilizing electric field. The structure of electrospun web has intrinsic properties such as small fibre diameter, small pore size, and high specific surface area which are beneficial for various applications. In addition, fibres can be functionalized in various methods. Thin (nm scale), conformal coatings made by atomic layer deposition (ALD) can be used for functionalization. For example, metal oxides can provide interesting properties, such as electronic, antimicrobial, self-cleaning and hydrophobic properties among others, to fibrous materials. Combining electrospinning and thicker ALD layer enables also preparation of sub-µm tubes, if core fibres are removed. Aim of this work was to make electrospun fibres from three polymers, cellulose acetate (CA), polyether sulphone (PES) and poly-L-lactide (PLLA) to be used as substrates for ALD. In this presentation we will report preparation electrospun fibres using solvent mixtures, structure of electrospun sheets (PLLA shown as an example), and preliminary results of ALD carried out on electrospun sheets, as well as discuss the possibilities of ALD method in functionalization and processing of electrospun fibres.",
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author = "Pirjo Heikkil{\"a} and Hille Rautkoski and Eija Kentt{\"a} and Laura Sv{\"a}rd and Mika V{\"a}h{\"a}-Nissi and Tommi Virtanen and Matti Putkonen",
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Heikkilä, P, Rautkoski, H, Kenttä, E, Svärd, L, Vähä-Nissi, M, Virtanen, T & Putkonen, M 2017, 'Electrospun sheet materials from CA, PES and PLLA as supports for ALD coating' Paper presented at International Conference on Electrospinning : From Design and Processing to Advanced Nanomaterials and Applications, electrospinCY_2017, Nicosia, Cyprus, 20/04/17 - 22/04/17, .

Electrospun sheet materials from CA, PES and PLLA as supports for ALD coating. / Heikkilä, Pirjo; Rautkoski, Hille; Kenttä, Eija; Svärd, Laura; Vähä-Nissi, Mika; Virtanen, Tommi; Putkonen, Matti.

2017. Paper presented at International Conference on Electrospinning : From Design and Processing to Advanced Nanomaterials and Applications, electrospinCY_2017, Nicosia, Cyprus.

Research output: Contribution to conferenceConference articleScientificpeer-review

TY - CONF

T1 - Electrospun sheet materials from CA, PES and PLLA as supports for ALD coating

AU - Heikkilä, Pirjo

AU - Rautkoski, Hille

AU - Kenttä, Eija

AU - Svärd, Laura

AU - Vähä-Nissi, Mika

AU - Virtanen, Tommi

AU - Putkonen, Matti

N1 - Project code: 102158

PY - 2017

Y1 - 2017

N2 - Electrospinning is a method that can be used in the production of polymeric nanofibres. Polymer solution is drawn into sub-µm to nanosized fibres utilizing electric field. The structure of electrospun web has intrinsic properties such as small fibre diameter, small pore size, and high specific surface area which are beneficial for various applications. In addition, fibres can be functionalized in various methods. Thin (nm scale), conformal coatings made by atomic layer deposition (ALD) can be used for functionalization. For example, metal oxides can provide interesting properties, such as electronic, antimicrobial, self-cleaning and hydrophobic properties among others, to fibrous materials. Combining electrospinning and thicker ALD layer enables also preparation of sub-µm tubes, if core fibres are removed. Aim of this work was to make electrospun fibres from three polymers, cellulose acetate (CA), polyether sulphone (PES) and poly-L-lactide (PLLA) to be used as substrates for ALD. In this presentation we will report preparation electrospun fibres using solvent mixtures, structure of electrospun sheets (PLLA shown as an example), and preliminary results of ALD carried out on electrospun sheets, as well as discuss the possibilities of ALD method in functionalization and processing of electrospun fibres.

AB - Electrospinning is a method that can be used in the production of polymeric nanofibres. Polymer solution is drawn into sub-µm to nanosized fibres utilizing electric field. The structure of electrospun web has intrinsic properties such as small fibre diameter, small pore size, and high specific surface area which are beneficial for various applications. In addition, fibres can be functionalized in various methods. Thin (nm scale), conformal coatings made by atomic layer deposition (ALD) can be used for functionalization. For example, metal oxides can provide interesting properties, such as electronic, antimicrobial, self-cleaning and hydrophobic properties among others, to fibrous materials. Combining electrospinning and thicker ALD layer enables also preparation of sub-µm tubes, if core fibres are removed. Aim of this work was to make electrospun fibres from three polymers, cellulose acetate (CA), polyether sulphone (PES) and poly-L-lactide (PLLA) to be used as substrates for ALD. In this presentation we will report preparation electrospun fibres using solvent mixtures, structure of electrospun sheets (PLLA shown as an example), and preliminary results of ALD carried out on electrospun sheets, as well as discuss the possibilities of ALD method in functionalization and processing of electrospun fibres.

KW - electrospinning

KW - atomic layer deposition

M3 - Conference article

ER -

Heikkilä P, Rautkoski H, Kenttä E, Svärd L, Vähä-Nissi M, Virtanen T et al. Electrospun sheet materials from CA, PES and PLLA as supports for ALD coating. 2017. Paper presented at International Conference on Electrospinning : From Design and Processing to Advanced Nanomaterials and Applications, electrospinCY_2017, Nicosia, Cyprus.