Novel biobased micro- and nanomaterials in porous foam formed structures

Research output: Contribution to conferenceOther conference contributionScientific

Abstract

This work applies the knowledge on multi-scale lignocellulosic fibres and proteins to create novel porous fibre structures using a foam forming technology. In particular, the aim is to enable new material properties by combining multi-scale wood and agro fibres, fines, cellulose nanofibrils and surface active proteins when using foam-assisted forming process. The design driven approach contributes to the selection of raw materials and tailoring of desired micro and macro structures through the processes. The future applications include e.g. cushioning elements in packaging and acoustic materials in indoor construction. The compression strength is one of the most critical mechanical properties in both applications areas. In our study, lignin-rich fines made of spruce wood and cellulose nanofibrils improved the compression strength of foam formed structures made with SDS and PVA as foaming agents. The used cellulose nanofibrils were TEMPO-oxidised (TCNF) and native grades (CNF). In this work, the retention of CNF fibrils in foamed porous structures was studied using x-ray tomography images and elementary analysis from iron-cobalt labelled mass and water samples. The surface active proteins were investigated as a mean to strengthen the lamella of air bubbles for stabilizing the aqueous fibre foams made with SDS. The produced stronger wet foamed structures can reduce drying time significantly allowing vacuum-based dewatering. Overall, wide-range selection of novel bio-based micro -and nanomaterials significantly improved the important process and product properties of highly porous foamed structures.
Original languageEnglish
Pages165-175
Number of pages11
Publication statusPublished - 1 Jan 2017
EventTAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2017 - Montreal, Canada
Duration: 5 Jun 20178 Jun 2017

Conference

ConferenceTAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2017
Abbreviated titleNANO 2017
CountryCanada
CityMontreal
Period5/06/178/06/17

Fingerprint

Nanostructures
Nanostructured materials
Cellulose
Foams
Fibers
Membrane Proteins
Proteins
Wood
Compaction
Lignin
Product Packaging
Vacuum
Cobalt
Acoustics
Blowing agents
Dewatering
Iron
Air
Tomography
X-Rays

Keywords

  • cellulose nanofibrils
  • fibre foams
  • highly porous structures
  • surface active proteins
  • x-ray tomography
  • labelling
  • biobased nanoparticles

Cite this

Torvinen, K., Pöhler, T., Lappalainen, T., Paajanen, A., Sirviö, J., & Ketoja, J. (2017). Novel biobased micro- and nanomaterials in porous foam formed structures. 165-175. TAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2017, Montreal, Canada.
Torvinen, Katariina ; Pöhler, Tiina ; Lappalainen, Timo ; Paajanen, Arja ; Sirviö, Jari ; Ketoja, Jukka. / Novel biobased micro- and nanomaterials in porous foam formed structures. TAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2017, Montreal, Canada.11 p.
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title = "Novel biobased micro- and nanomaterials in porous foam formed structures",
abstract = "This work applies the knowledge on multi-scale lignocellulosic fibres and proteins to create novel porous fibre structures using a foam forming technology. In particular, the aim is to enable new material properties by combining multi-scale wood and agro fibres, fines, cellulose nanofibrils and surface active proteins when using foam-assisted forming process. The design driven approach contributes to the selection of raw materials and tailoring of desired micro and macro structures through the processes. The future applications include e.g. cushioning elements in packaging and acoustic materials in indoor construction. The compression strength is one of the most critical mechanical properties in both applications areas. In our study, lignin-rich fines made of spruce wood and cellulose nanofibrils improved the compression strength of foam formed structures made with SDS and PVA as foaming agents. The used cellulose nanofibrils were TEMPO-oxidised (TCNF) and native grades (CNF). In this work, the retention of CNF fibrils in foamed porous structures was studied using x-ray tomography images and elementary analysis from iron-cobalt labelled mass and water samples. The surface active proteins were investigated as a mean to strengthen the lamella of air bubbles for stabilizing the aqueous fibre foams made with SDS. The produced stronger wet foamed structures can reduce drying time significantly allowing vacuum-based dewatering. Overall, wide-range selection of novel bio-based micro -and nanomaterials significantly improved the important process and product properties of highly porous foamed structures.",
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Torvinen, K, Pöhler, T, Lappalainen, T, Paajanen, A, Sirviö, J & Ketoja, J 2017, 'Novel biobased micro- and nanomaterials in porous foam formed structures' TAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2017, Montreal, Canada, 5/06/17 - 8/06/17, pp. 165-175.

Novel biobased micro- and nanomaterials in porous foam formed structures. / Torvinen, Katariina; Pöhler, Tiina; Lappalainen, Timo; Paajanen, Arja; Sirviö, Jari; Ketoja, Jukka.

2017. 165-175 TAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2017, Montreal, Canada.

Research output: Contribution to conferenceOther conference contributionScientific

TY - CONF

T1 - Novel biobased micro- and nanomaterials in porous foam formed structures

AU - Torvinen, Katariina

AU - Pöhler, Tiina

AU - Lappalainen, Timo

AU - Paajanen, Arja

AU - Sirviö, Jari

AU - Ketoja, Jukka

N1 - Powerpoint only

PY - 2017/1/1

Y1 - 2017/1/1

N2 - This work applies the knowledge on multi-scale lignocellulosic fibres and proteins to create novel porous fibre structures using a foam forming technology. In particular, the aim is to enable new material properties by combining multi-scale wood and agro fibres, fines, cellulose nanofibrils and surface active proteins when using foam-assisted forming process. The design driven approach contributes to the selection of raw materials and tailoring of desired micro and macro structures through the processes. The future applications include e.g. cushioning elements in packaging and acoustic materials in indoor construction. The compression strength is one of the most critical mechanical properties in both applications areas. In our study, lignin-rich fines made of spruce wood and cellulose nanofibrils improved the compression strength of foam formed structures made with SDS and PVA as foaming agents. The used cellulose nanofibrils were TEMPO-oxidised (TCNF) and native grades (CNF). In this work, the retention of CNF fibrils in foamed porous structures was studied using x-ray tomography images and elementary analysis from iron-cobalt labelled mass and water samples. The surface active proteins were investigated as a mean to strengthen the lamella of air bubbles for stabilizing the aqueous fibre foams made with SDS. The produced stronger wet foamed structures can reduce drying time significantly allowing vacuum-based dewatering. Overall, wide-range selection of novel bio-based micro -and nanomaterials significantly improved the important process and product properties of highly porous foamed structures.

AB - This work applies the knowledge on multi-scale lignocellulosic fibres and proteins to create novel porous fibre structures using a foam forming technology. In particular, the aim is to enable new material properties by combining multi-scale wood and agro fibres, fines, cellulose nanofibrils and surface active proteins when using foam-assisted forming process. The design driven approach contributes to the selection of raw materials and tailoring of desired micro and macro structures through the processes. The future applications include e.g. cushioning elements in packaging and acoustic materials in indoor construction. The compression strength is one of the most critical mechanical properties in both applications areas. In our study, lignin-rich fines made of spruce wood and cellulose nanofibrils improved the compression strength of foam formed structures made with SDS and PVA as foaming agents. The used cellulose nanofibrils were TEMPO-oxidised (TCNF) and native grades (CNF). In this work, the retention of CNF fibrils in foamed porous structures was studied using x-ray tomography images and elementary analysis from iron-cobalt labelled mass and water samples. The surface active proteins were investigated as a mean to strengthen the lamella of air bubbles for stabilizing the aqueous fibre foams made with SDS. The produced stronger wet foamed structures can reduce drying time significantly allowing vacuum-based dewatering. Overall, wide-range selection of novel bio-based micro -and nanomaterials significantly improved the important process and product properties of highly porous foamed structures.

KW - cellulose nanofibrils

KW - fibre foams

KW - highly porous structures

KW - surface active proteins

KW - x-ray tomography

KW - labelling

KW - biobased nanoparticles

UR - http://www.scopus.com/inward/record.url?scp=85048358876&partnerID=8YFLogxK

M3 - Other conference contribution

SP - 165

EP - 175

ER -

Torvinen K, Pöhler T, Lappalainen T, Paajanen A, Sirviö J, Ketoja J. Novel biobased micro- and nanomaterials in porous foam formed structures. 2017. TAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2017, Montreal, Canada.