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Elastic properties of cellulose nanopaper
KTH, Skolan för teknikvetenskap (SCI), Hållfasthetslära (Inst.).ORCID-id: 0000-0003-3611-2250
KTH, Skolan för teknikvetenskap (SCI), Hållfasthetslära (Inst.).
KTH, Skolan för kemivetenskap (CHE), Centra, Wallenberg Wood Science Center.
KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknologi. Linköping University, Sweden.
2012 (engelsk)Inngår i: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 19, nr 3, s. 793-807Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Nanopaper is a transparent film made of network-forming nanocellulose fibers. These fibers are several micrometers long with a diameter of 4-50 nm. The reported elastic modulus of nanopaper often falls short of even conservative theoretical predictions based on the modulus of crystalline cellulose, although such predictions usually perform well for other fiber composite materials. We investigate this inconsistency and suggest explanations by identifying the critical factors affecting the stiffness of nanopaper. A similar inconsistency is found when predicting the stiffness of conventional paper, and it is usually explained by the effects introduced during drying. We found that the effect of the drying cannot solely explain the relatively low elastic modulus of nanopaper. Among the factors that showed the most influence are the presence of non-crystalline regions along the length of the nanofibers, initial strains and the three-dimensional structure of individual bonds.

sted, utgiver, år, opplag, sider
Springer , 2012. Vol. 19, nr 3, s. 793-807
Emneord [en]
Nanopaper, Nanocellulose, Elastic properties, Fiber network model
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Identifikatorer
URN: urn:nbn:se:kth:diva-93964DOI: 10.1007/s10570-012-9685-5ISI: 000303459200021Scopus ID: 2-s2.0-84860375255OAI: oai:DiVA.org:kth-93964DiVA, id: diva2:524654
Merknad

QC 20120607

Tilgjengelig fra: 2012-05-03 Laget: 2012-05-03 Sist oppdatert: 2017-12-07bibliografisk kontrollert

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