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Isolation of Mixed ...
Isolation of Mixed Compositions of Cellulose Nanocrystals, Microcrystalline Cellulose, and Lignin Nanoparticles from Wood Pulps
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- Abitbol, Tiffany (författare)
- RISE,Institute of Materials, School of Engineering, EPFL, 1015 Lausanne, Switzerland;Bioeconomy and Health, RISE Research Institutes of Sweden, SE-114 28 Stockholm, Sweden
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- Kubat, Mikaela (författare)
- RISE,Material- och ytdesign,Bioeconomy and Health, RISE Research Institutes of Sweden, SE-114 28 Stockholm, Sweden
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- Brännvall, Elisabet, 1961- (författare)
- RISE,Bioeconomy and Health, RISE Research Institutes of Sweden, SE-114 28 Stockholm, Sweden
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- Kotov, Nikolay (författare)
- KTH,Yt- och korrosionsvetenskap,KTH Royal Institute of Technology, Sweden
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- Johnson, C. Magnus (författare)
- KTH,Yt- och korrosionsvetenskap,KTH Royal Institute of Technology, Sweden
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- Nizamov, Rustem (författare)
- Department of Mechanical and Materials Engineering, Faculty of Technology, University of Turku, FI-20014 Turku, Finland
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- Nyberg, Mikael (författare)
- Department of Mechanical and Materials Engineering, Faculty of Technology, University of Turku, FI-20014 Turku, Finland
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- Miettunen, Kati (författare)
- Department of Mechanical and Materials Engineering, Faculty of Technology, University of Turku, FI-20014 Turku, Finland
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- Nordgren, Niklas (författare)
- RISE,Material- och ytdesign,Bioeconomy and Health, RISE Research Institutes of Sweden, SE-114 28 Stockholm, Sweden
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- Stevanic Srndovic, Jasna (författare)
- RISE,Material- och ytdesign,Bioeconomy and Health, RISE Research Institutes of Sweden, SE-114 28 Stockholm, Sweden
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- Guerreiro, Maria Pita (författare)
- RISE,Bioeconomy and Health, RISE Research Institutes of Sweden, SE-114 28 Stockholm, Sweden
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(creator_code:org_t)
- American Chemical Society (ACS), 2023
- 2023
- Engelska.
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Ingår i: ACS Omega. - : American Chemical Society (ACS). - 2470-1343. ; 8:24, s. 21474-21484
- 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
- From a circular economyperspective, one-pot strategies for theisolation of cellulose nanomaterials at a high yield and with multifunctionalproperties are attractive. Here, the effects of lignin content (bleachedvs unbleached softwood kraft pulp) and sulfuric acid concentrationon the properties of crystalline lignocellulose isolates and theirfilms are explored. Hydrolysis at 58 wt % sulfuric acid resulted inboth cellulose nanocrystals (CNCs) and microcrystalline celluloseat a relatively high yield (>55%), whereas hydrolysis at 64 wt% gaveCNCs at a lower yield (<20%). CNCs from 58 wt % hydrolysis weremore polydisperse and had a higher average aspect ratio (1.5-2x),a lower surface charge (2x), and a higher shear viscosity (100-1000x).Hydrolysis of unbleached pulp additionally yielded spherical nanoparticles(NPs) that were <50 nm in diameter and identified as lignin bynanoscale Fourier transform infrared spectroscopy and IR imaging.Chiral nematic self-organization was observed in films from CNCs isolatedat 64 wt % but not from the more heterogeneous CNC qualities producedat 58 wt %. All films degraded to some extent under simulated sunlighttrials, but these effects were less pronounced in lignin-NP-containingfilms, suggesting a protective feature, but the hemicellulose contentand CNC crystallinity may be implicated as well. Finally, heterogeneousCNC compositions obtained at a high yield and with improved resourceefficiency are suggested for specific nanocellulose uses, for instance,as thickeners or reinforcing fillers, representing a step toward thedevelopment of application-tailored CNC grades.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Korrosionsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Corrosion Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Biokemikalier (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Biochemicals (hsv//eng)
Nyckelord
- Chemical Engineering
- Kemiteknik
- Chemical Engineering
- Kemiteknik
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Till lärosätets databas
- Av författaren/redakt...
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Abitbol, Tiffany
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Kubat, Mikaela
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Brännvall, Elisa ...
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Kotov, Nikolay
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Johnson, C. Magn ...
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Nizamov, Rustem
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visa fler...
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Nyberg, Mikael
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Miettunen, Kati
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Nordgren, Niklas
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Stevanic Srndovi ...
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Guerreiro, Maria ...
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visa färre...
- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Kemiteknik
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och Korrosionsteknik
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Industriell biot ...
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och Biokemikalier
- Artiklar i publikationen
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ACS Omega
- Av lärosätet
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Kungliga Tekniska Högskolan
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RISE