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    Author(s): Jinze Dou; Huiyang Bian; Daniel J. Yelle; Mariko Ago; Krista Vajanto; Tapani Vuorinen; Junyong (J.Y.). Zhu
    Date: 2019
    Source: Industrial Crops and Products. 129: 15-23.
    Publication Series: Scientific Journal (JRNL)
    Station: Forest Products Laboratory
    PDF: Download Publication  (7.0 MB)


    We conducted the frst comparative exploration on lignin containing cellulose nanofibril films prepared alternatively from willow bark and wood using a highly recyclable acid hydrotrope, aqueous p-toluenesulfonic acid, as a sustainable means for isolating the nanofibrils. The nanofibrils of willow bark were hydrophobic and produced dense films of high strength under hot pressing. The hydrophobicity resulted from condensation of the residual lignin with low molecular weight aromatic substances of the bark and hydroxymethyl furfural formed in situ from fructose that is also present in the bark.

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    Dou, Jinze; Bian, Huiyang; Yelle, Daniel J.; Ago, Mariko; Vajanto, Krista; Vuorinen, Tapani; Zhu, Junyong (J.Y.). 2019. Lignin containing cellulose nanofibril production from willow bark at 80 °C using a highly recyclable acid hydrotrope. Industrial Crops and Products. 129: 15-23.


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    Nanocellulose, suberin, aromatic substance, 5-hydroxymethylfurfural, p-Toluenesulfonic acid, willow bark

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