Abstract：
: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 nanocomposites, the Q-CNF/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.
journal_name
Biomacromoleculesjournal_title
Biomacromoleculesauthors
Morimune-Moriya S,Salajkova M,Zhou Q,Nishino T,Berglund LAdoi
10.1021/acs.biomac.8b00010subject
Has Abstractpub_date
2018-07-09 00:00:00pages
2423-2431issue
7eissn
1525-7797issn
1526-4602journal_volume
19pub_type
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