As a result, cellulose nanofibrils
can be useful in various fields, such as reinforcement
components in flexible display panels [3], biodegradable
packaging materials [4], and oxygen-barrier layers [5]. In
recent decades, several techniques have been proposed to
extract highly purified nanofibrils from various cellulosic
resources, such as high pressure homogenization [6], highspeed
shearing [7], and TEMPO-mediated oxidation combined
with mechanical treatment [8].