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Rationally designed...
Rationally designed conductive wood with mechanoresponsive electrical resistance
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- Mastantuoni, Gabriella G. (författare)
- KTH,Glykovetenskap,Wallenberg Wood Science Center,AlbaNova Univ Ctr, Sweden; KTH Royal Inst Technol, Sweden
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- van Chinh, Tran (författare)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten,Wallenberg Wood Science Center
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- Garemark, Jonas (författare)
- Wood Materials Science, Institute for Building Materials, ETH Zürich, 8093, Zürich, Switzerland,Swiss Fed Inst Technol, Switzerland
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- Dreimol, Christopher H. (författare)
- Wood Materials Science, Institute for Building Materials, ETH Zürich, 8093, Zürich, Switzerland,Swiss Fed Inst Technol, Switzerland
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- Engquist, Isak (författare)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten,Wallenberg Wood Science Center
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- Berglund, Lars, 1956- (författare)
- KTH,Biokompositer,Wallenberg Wood Science Center,KTH Royal Inst Technol, Sweden
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- Zhou, Qi (författare)
- KTH,Glykovetenskap,Wallenberg Wood Science Center,AlbaNova Univ Ctr, Sweden; KTH Royal Inst Technol, Sweden
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(creator_code:org_t)
- Elsevier BV, 2024
- 2024
- Engelska.
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Ingår i: Composites. Part A, Applied science and manufacturing. - : Elsevier BV. - 1359-835X .- 1878-5840. ; 178
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Porous cellular foams, combining lightweight, high strength, and compressibility, hold great promise in a wide range of advanced applications. Here, the native structure of pine wood was modified by in-situ lignin sulfonation and unidirectional freezing, resulting in an alveolate structure inside the wood cell wall with arrays of sub-100 nm channels. The obtained wood foam exhibited highly enhanced permeability while retaining the native cellular arrangement and high lignin and hemicellulose content. Such engineered cellular foam contributed to superior mechanical performance with compressive strength of 9 MPa and Young's modulus of 344 MPa in the longitudinal direction. The high porosity allowed homogeneous infiltration of conductive polymer PEDOT:PSS inside the wood cell wall. The resulting composite exhibited high conductivity, sponge-like compressibility and the ability to modulate electrical resistance in a reversible manner in the radial direction. This rationally designed conductive wood demonstrated potential in durable and ultrasensitive pressure-responsive devices and strain sensors.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Trävetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Wood Science (hsv//eng)
Nyckelord
- A Foams
- A Multifunctional composites
- B Electrical properties
- B Mechanical properties
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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