Method of forming a cellulose nanocrystalline film

摘要

A method is provided for forming a substantially uniaxially-oriented, high content cellulose nanocrystal film. The method includes providing a plant-biomass-based suspension of cellulose nanocrystals and altering the pH of the cellulose nanocrystals to a substantially neutral pH. The suspension is sheared at a shearing rate. The method further includes orienting the cellulose nanocrystals in a substantially axial direction and removing water from the sheared cellulose nanocrystal suspension. As a result, a substantially uniaxially-oriented cellulose nanocrystal film is formed.

主权项

1. A method of forming a substantially uniaxially-oriented, high content cellulose nanocrystal film, the method comprising:
providing a suspension of cellulose nanocrystals extracted from plant biomass; altering the pH of the suspension to a substantially neutral pH; shearing the neutralized suspension at a defined shearing rate using a doctor blade; orienting cellulose nanocrystals of the neutralized suspension in a substantially axial direction; removing water from the sheared cellulose nanocrystal suspension; and forming a cellulose nanocrystal film having a substantially uniaxial orientation in the axial direction.