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Directed self-assem...
Directed self-assembly of silica nanoparticles in ionic liquid-spun cellulose fibers
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- Andersson Trojer, Markus, 1981 (författare)
- RISE,IVF
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- Olsson, Carina, 1982 (författare)
- RISE,IVF
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- Bengtsson, Jenny, 1990 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Sweden
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- Hedlund, Artur, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Sweden
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- Bordes, Romain, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Sweden
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(creator_code:org_t)
- Elsevier BV, 2019
- 2019
- Engelska.
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Ingår i: Journal of Colloid and Interface Science. - : Elsevier BV. - 1095-7103 .- 0021-9797. ; 553, s. 167-176
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://research.cha...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The application range of man-made cellulosic fibers is limited by the absence of cost- and manufacturing-efficient strategies for anisotropic hierarchical functionalization. Overcoming these bottlenecks is therefore pivotal in the pursuit of a future bio-based economy. Here, we demonstrate that colloidal silica nanoparticles (NPs), which are cheap, biocompatible and easy to chemically modify, enable the control of the cross-sectional morphology and surface topography of ionic liquid-spun cellulose fibers. These properties are tailored by the silica NPs’ surface chemistry and their entry point during the wet-spinning process (dope solution DSiO2 or coagulation bath CSiO2). For CSiO2-modified fibers, the coagulation mitigator dimethylsulphoxide allows for controlling the surface topography and the amalgamation of the silica NPs into the fiber matrix. For dope-modified fibers, we hypothesize that cellulose chains act as seeds for directed silica NP self-assembly. This results for DSiO2 in discrete micron-sized rods, homogeneously distributed throughout the fiber and for glycidoxy-surface modified DSiO2@GLYEO in nano-sized surface aggregates and a cross-sectional core-shell fiber morphology. Furthermore, the dope-modified fibers display outstanding strength and toughness, which are both characteristic features of biological biocomposites.
Ämnesord
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Nyckelord
- Mechanical properties
- Plasma-enhanced chemical vapor deposition
- Wet-spinning
- Surface topography
- Biocomposites
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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