onr:"swepub:oai:DiVA.org:kth-133567"
Search: onr:"swepub:oai:DiVA.org:kth-133567" > Strong and Moldable...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Galland, Sylvain,1987-KTH,Biokompositer,Wallenberg Wood Science Center,WWSC (author)
Strong and Moldable Cellulose Magnets with High Ferrite Nanoparticle Content
- Article/chapterEnglish2014
Publisher, publication year, extent ...
- 2014-11-03
- American Chemical Society (ACS),2014
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-133567
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-133567URI
- https://doi.org/10.1021/am506134kDOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20150116
- A major limitation in the development of highly functional hybrid nanocomposites is brittleness and low tensile strength at high inorganic nanoparticle content. Herein, cellulose nanofibers were extracted from wood and individually decorated with cobalt-ferrite nanoparticles and then for the first time molded at low temperature (<120 degrees C) into magnetic nanocomposites with up to 93 wt % inorganic content. The material structure was characterized by TEM and FE-SEM and mechanically tested as compression molded samples. The obtained porous magnetic sheets were further impregnated with a thermosetting epoxy resin, which improved the load-bearing functions of ferrite and cellulose material. A nanocomposite with 70 wt % ferrite, 20 wt % cellulose nanofibers, and 10 wt % epoxy showed a modulus of 12.6 GPa, a tensile strength of 97 MPa, and a strain at failure of ca. 4%. Magnetic characterization was performed in a vibrating sample magnetometer, which showed that the coercivity was unaffected and that the saturation magnetization was in proportion with the ferrite content. The used ferrite, CoFe2O4 is a magnetically hard material, demonstrated by that the composite material behaved as a traditional permanent magnet. The presented processing route is easily adaptable to prepare millimeter-thick and moldable magnetic objects. This suggests that the processing method has the potential to be scaled-up for industrial use for the preparation of a new subcategory of magnetic, low-cost, and moldable objects based on cellulose nanofibers.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Materialteknik Pappers-, massa- och fiberteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Materials Engineering Paper, Pulp and Fiber Technology hsv//eng
- cellulose nanofiber
- ferrite nanoparticle
- nanocomposite
- compression-molding
- mechanical properties
Added entries (persons, corporate bodies, meetings, titles ...)
- Andersson, Richard L.KTH,Fiber- och polymerteknologi(Swepub:kth)u1ksh6cc (author)
- Ström, ValterKTH,Teknisk materialfysik(Swepub:kth)u1u6wc2n (author)
- Olsson, RichardKTH,Polymera material(Swepub:kth)u1ob386f (author)
- Berglund, LarsKTH,Biokompositer(Swepub:kth)u1wqz3r1 (author)
- KTHBiokompositer (creator_code:org_t)
Related titles
- In:ACS Applied Materials and Interfaces: American Chemical Society (ACS)6:22, s. 20524-205341944-82441944-8252
Internet link
Find in a library
- ACS Applied Materials and Interfaces (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Galland, Sylvain ...
- Andersson, Richa ...
- Ström, Valter
- Olsson, Richard
- Berglund, Lars
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Materials Engine ...
- and Paper Pulp and F ...
- Articles in the publication
- ACS Applied Mate ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
