@article{Santmarti:2020:10.1016/j.carbpol.2020.116870,
author = {Santmarti, A and Tammelin, T and Lee, K-Y},
doi = {10.1016/j.carbpol.2020.116870},
journal = {Carbohydrate Polymers},
pages = {1--9},
title = {Prevention of interfibril hornification by replacing water in nanocellulose gel with low molecular weight liquid poly(ethylene glycol)},
url = {http://dx.doi.org/10.1016/j.carbpol.2020.116870},
volume = {250},
year = {2020}
}

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TY  - JOUR
AB  - Nanocellulose is typically stored and transported as a gel with a nominal solid content of up to 5 wt.-% to avoid interfibril hornification, i.e. the formation of irreversible hydrogen bonds between adjacent nanocellulose upon drying, which makes nanocellulose not cost-effective. In this work, we report the use of low molecular weight liquid poly(ethylene glycol) (PEG-200) as a replacement for the water phase in nanocellulose aqueous gel. Our results indicated that nanocellulose can be stored in PEG-200 at a solid content of up to 70 wt.-% without interfibril hornification, even when exposed to the ambient environment. This is due to the low vapour pressure and high boiling point of PEG-200. ATR-FTIR and ζ-potential measurements confirmed that PEG-200 can be easily washed out from the nanocellulose as PEG-200 is water miscible. Using PEG-200 as a replacement for the water phase in nanocellulose aqueous gel could improve the cost-efficiency of nanocellulose storage and transportation. The tensile properties of the cellulose nanopaper prepared from the various never-dried and once-dried nanocellulose are also discussed in this work.
AU  - Santmarti,A
AU  - Tammelin,T
AU  - Lee,K-Y
DO  - 10.1016/j.carbpol.2020.116870
EP  - 9
PY  - 2020///
SN  - 0144-8617
SP  - 1
TI  - Prevention of interfibril hornification by replacing water in nanocellulose gel with low molecular weight liquid poly(ethylene glycol)
T2  - Carbohydrate Polymers
UR  - http://dx.doi.org/10.1016/j.carbpol.2020.116870
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000578994600004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/pii/S0144861720310432?via%3Dihub
VL  - 250
ER  - 

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