Wood fiber microfilament dissociation method based on soft nanometer paper base material

Abstract

The invention provides a wood fiber microfilament dissociation method based on a soft nanometer paper base material. The wood fiber microfilament dissociation method comprises the following steps: cutting off and cutting short paper pulp fibers by a pulping machine, and controlling the length of the cut fibers between 500 micrometers and 1000 micrometers; squashing the cut paper pulp fibers by hammering force which is perpendicular to the axial direction of the fibers until the primary cell wall and secondary cell wall outer layers of the fibers are broken or peeled; then utilizing rubbing and shearing force perpendicular to the axial direction of the fibers to separate microfilament layers so as to obtain primarily nano-crystallized fiber microfilaments; finally carrying out high-shear flattening treatment on the primarily nano-crystallized fiber microfilaments to obtain the soft nanometer fibers with uniform size. The method has the advantages of high product yield, uniform size and capability of batch preparing.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a method for dissociating wood fiber microfibrils based on flexible nano paper-based materials. Background technique [0002] Natural plant fiber resources are abundant, and the prepared nanofiber paper material is green and environmentally friendly. It can esterify, oxidize, etherify, and graft the free hydroxyl groups on the cellulose molecules to endow the fibers with special properties or functions. Nano paper-based materials have high elastic modulus, porous structure, low thermal expansion coefficient, and flexible and rollable characteristics. When nanofiber materials are used as electrode diaphragm materials for supercapacitors and lithium-ion batteries, they have a large contact area with the electrolyte, a short ion-deintercalation distance, and a stable structure during the ion-deintercalation process, which can effectively improve the capacity and cycle life of the battery. ...

AI Technical Summary

Problems solved by technology

Therefore, the preparation of new flexible nanofiber materials has basically not made breakthrough progress, which seriously hinders the application research and industrialization of nanofiber materials in flexible electronic products.