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Research Status of Nanocellulose Preparation Methods
Received:April 01, 2020  
DOI：10.11980/j.issn.0254-508X.2020.09.012
Key Words:nanocellulose  preparation method  cellulose nanocrytal  cellulose nanofibril
Fund Project:山东省自然科学基金（ZR2017LC016）。
Author NameAffiliation
ZHU Yachong （State Key Lab of Bio-based Material and Green Papermaking，Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province，250353） 
WU Chaojun （State Key Lab of Bio-based Material and Green Papermaking，Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province，250353） 
YU Dongmei （State Key Lab of Bio-based Material and Green Papermaking，Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province，250353） 
WEI Zhenke （State Key Lab of Bio-based Material and Green Papermaking，Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province，250353） 
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Abstract:Nanocellulose has attracted attention widely due to its biodegradable， low density， high mechanical properties and renewability. This article mainly introduces the classification and preparation methods of nanocellulose produced from wood or agricultural / forestry crops， including inorganic acid hydrolysis， enzymatic hydrolysis， organic acid hydrolysis， solid acid hydrolysis， ionic liquid method， deep eutectic solvent method and American value added pulping method （AVAP） for preparing cellulose nanocrystals . It also introduces the common mechanical treatment methods and the pretreatment methods before mechanical treatment for preparing cellulose nanofibrils， including oxidation pretreatment， enzyme pretreatment， organic acid hydrolysis pretreatment， periodate oxidation pretreatment， deep eutectic solvent pretreatment， ionic liquid pretreatment and solvent-assisted pretreatment. Finally， the existing problems in the preparation methods of nanocellulose are analyzed， and the broad application prospect of nanocellulose is predicted.
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