▎ 摘　　要

NOVELTY - The method involves preparing fiber expansion nano micro-crystalline cellulose solution by performing N-methyl morpholine oxide aqueous solution treatment. Microwave treating process is performed. Magnetic stirring graphene solution is added. Magnetic graphite is prepared by adopting magnet recycling process. Natural sedimentation solution is added. N-methyl morpholine oxide recycling process is performed. Impurity is removed from the fiber expansion micro-crystalline cellulose solution. Freezing and drying processes are performed to obtain the nano micro-crystalline cellulose solution. USE - N-methyl morpholine oxide graphene and magnetic coupling system nano micro-crystalline cellulose preparing method. ADVANTAGE - The method enables utilizing wide raw material source, improving natural plant fiber utilization rate, realizing N-methyl morpholine oxide graphene and magnetic coupling system nano micro-crystalline cellulose preparing process in a simple and easy manner and reducing production cost. DESCRIPTION OF DRAWING(S) - The drawing shows a photograph view illustrating N-methyl morpholine oxide graphene and magnetic coupling system nano micro-crystalline cellulose preparing method.