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US 2016/0376749 A1Published application
Method for producing nanofibrillated cellulose
AssigneeKorea Institute of Industrial Technology
InventorsDae Young Lim, Ki Young Kim, Jin Ah Lee
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Abstract
The present invention relates to a method for preparing nanofibrillated cellulose capable of producing high-quality cellulose nanofibrils by a simple process without using the conventional enzymatic treatment, in which a cellulose aqueous dispersion is homogenized by adding an aqueous alkaline solution having a pH between 8 and 14 thereto so that the aqueous alkaline solution aids the swell of an amorphous region of cellulose, thereby promoting the nanofibrillation of cellulose during the homogenizing process.
Claims11
A method for preparing nanofibrillated cellulose, comprising:
- dispersing pulp in water to obtain an aqueous dispersion of pulp (Step 1);
- adding an aqueous alkaline solution having a pH between 8 and 14 to the aqueous dispersion of pulp to obtain a dispersed aqueous alkaline solution of pulp (Step 2);
- and
- homogenizing the dispersed aqueous alkaline solution of pulp to obtain a homogenized material (Step 3).
1 more element
Dependencies are inferred from the claim text.