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Reinforcement Effects from Nanodiamond in Cellulose Nanofibril Films
Chubu Univ, Coll Engn, Dept Appl Chem, Matsumoto, Nagano 4878501, Japan..
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology. KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center. KTH, School of Biotechnology (BIO).ORCID iD: 0000-0001-9832-027X
Kobe Univ, Grad Sch Engn, Dept Chem Sci & Engn, Kobe, Hyogo 6578501, Japan..
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2018 (English)In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 19, no 7, p. 2423-2431Article in journal (Refereed) Published
Abstract [en]

Although research on nanopaper structures from cellulose nanofibrils (CNFs) is well established, the mechanical behavior is not well understood, especially not when CNF is combined with hard nanoparticles. Cationic CNF (Q-CNF) was prepared and successfully decorated by anionic nanodiamond (ND) nanoparticles in hydrocolloidal form. The Q-CNF/ND nanocomposites were filtered from a hydrocolloid and dried. Unlike many other carbon nano composites, the QCNF/ND nanocomposites were optically transparent. Reinforcement effects from the nanodiamond were remarkable, such as Young's modulus (9.8 -> 16.6 GPa) and tensile strength (209.5 -> 277.5 MPa) at a content of only 1.9% v/v of ND, and the reinforcement mechanisms are discussed. Strong effects on CNF network deformation mechanisms were revealed by loading unloading experiments. Scratch hardness also increased strongly with increased addition of ND.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2018. Vol. 19, no 7, p. 2423-2431
National Category
Biochemistry and Molecular Biology
Identifiers
URN: urn:nbn:se:kth:diva-232787DOI: 10.1021/acs.biomac.8b00010ISI: 000438470800007PubMedID: 29620880Scopus ID: 2-s2.0-85049752914OAI: oai:DiVA.org:kth-232787DiVA, id: diva2:1236877
Note

QC 20180806

Available from: 2018-08-06 Created: 2018-08-06 Last updated: 2018-08-06Bibliographically approved

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Salajkova, MichaelaZhou, Qi

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Salajkova, MichaelaZhou, QiBerglund, Lars A.
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Fibre and Polymer TechnologyWallenberg Wood Science CenterSchool of Biotechnology (BIO)
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