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Sökning: AMNE:(MEDICAL AND HEALTH SCIENCES Medical Biotechnology Biomaterials Science) > (2020-2024) > Strong reinforcemen...

Strong reinforcement effects in 2D cellulose nanofibril-graphene oxide (CNF-GO) nanocomposites due to GO-induced CNF ordering

Mianehrow, Hanieh (författare)
KTH,Biokompositer,Wallenberg Wood Science Center,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
Lo Re, Giada, 1971 (författare)
KTH,Biokompositer,Wallenberg Wood Science Center,Chalmers Univ Technol, Dept Ind & Mat Sci, Rannvagen 2, S-41296 Gothenburg, Sweden.,Chalmers tekniska högskola,Chalmers University of Technology
Carosio, Federico (författare)
Politecnico di Torino,Polytechnic University of Turin,Politecn Torino, Dipartimento Sci Applicata & Tecnol, Alessandria Campus,Via Teresa Michel 5, I-15121 Alessandria, Italy.
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Fina, Alberto (författare)
Politecnico di Torino,Polytechnic University of Turin,Politecn Torino, Dipartimento Sci Applicata & Tecnol, Alessandria Campus,Via Teresa Michel 5, I-15121 Alessandria, Italy.
Larsson, Per Tomas (författare)
KTH,Wallenberg Wood Science Center,Fiberteknologi,RISE Bioecon, Drottning Kristinas Vag 61, SE-11486 Stockholm, Sweden.,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH),RISE Research Institutes of Sweden
Chen, Pan (författare)
KTH,Wallenberg Wood Science Center,Fiberteknologi,Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Engn Res Ctr Cellulose & Its Derivat, 5 South Zhongguancun St, Beijing 100081, Peoples R China.,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH),Beijing Institute of Technology
Berglund, Lars, 1956- (författare)
KTH,Biokompositer,Wallenberg Wood Science Center,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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 (creator_code:org_t)
2020
2020
Engelska.
Ingår i: Journal of Materials Chemistry A. - : Royal Society of Chemistry (RSC). - 2050-7496 .- 2050-7488. ; 8:34, s. 17608-17620
Relaterad länk:
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https://pubs.rsc.org...
https://doi.org/10.1...
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https://doi.org/10.1...
https://urn.kb.se/re...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Nanocomposites from native cellulose with low 2D nanoplatelet content are of interest as sustainable materials combining functional and structural performance. Cellulose nanofibril-graphene oxide (CNF-GO) nanocomposite films are prepared by a physical mixing-drying method, with a focus on low GO content, the use of very large GO platelets (2-45 mu m) and nanostructural characterization using synchrotron X-ray source for WAXS and SAXS. These nanocomposites can be used as transparent coatings, strong films or membranes, as gas barriers or in laminated form. CNF nanofibrils with random in-plane orientation, form a continuous non-porous matrix with GO platelets oriented in-plane. GO reinforcement mechanisms in CNF are investigated, and relationships between nanostructure and suspension rheology, mechanical properties, optical transmittance and oxygen barrier properties are investigated as a function of GO content. A much higher modulus reinforcement efficiency is observed than in previous polymer-GO studies. The absolute values for modulus and ultimate strength are as high as 17 GPa and 250 MPa at a GO content as small as 0.07 vol%. The remarkable reinforcement efficiency is due to improved organization of the CNF matrix; and this GO-induced mechanism is of general interest for nanostructural tailoring of CNF-2D nanoplatelet composites.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Kemiteknik -- Polymerteknologi (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Chemical Engineering -- Polymer Technologies (hsv//eng)
NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Medicinsk bioteknologi -- Biomaterialvetenskap (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Medical Biotechnology -- Biomaterials Science (hsv//eng)

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