An Efficient Method for Cellulose Nanofibrils Length Shearing via Environmentally Friendly Mixed Cellulase Pretreatment

Figure 7

The SEM and TEM images and data statistics of diameter of different CNF manufactured by cooperation of original pulp or cellulase hydrolysis pulp with mechanical grinding. (a) The SEM image of CNF prepared by grinding of raw pulp solution. The diameters of these CNFs were highly nonuniform. (b) The SEM image of the CNF prepared by grinding with C_{0.4 g,10 h} condition pretreatment. There were numerous breaking points. (c-d) The diameter statistics of (a) and (b) samples. The diameter of CNF prepared by original pulp ranged from 50 nm to 300 nm that the average diameter was  nm. And the diameter of CNF prepared by C_{0.4 g,10 h} condition pretreatment ranged from 20 nm to 120 nm that the average diameter was  nm. (e) The TEM images of average length CNF prepared by C_{0.4 g,10 h} condition pretreatment was about  nm.

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