1 research outputs found
Thermally Stable Cellulose Nanocrystals toward High-Performance 2D and 3D Nanostructures
Cellulose
nanomaterials have attracted much attention in a broad range of fields
such as flexible electronics, tissue engineering, and 3D printing
for their excellent mechanical strength and intriguing optical properties.
Economic, sustainable, and eco-friendly production of cellulose nanomaterials
with high thermal stability, however, remains a tremendous challenge.
Here versatile cellulose nanocrystals (DM-OA-CNCs) are prepared through
fully recyclable oxalic acid (OA) hydrolysis along with disk-milling
(DM) pretreatment of bleached kraft eucalyptus pulp. Compared with
the commonly used cellulose nanocrystals from sulfuric acid hydrolysis,
DM-OA-CNCs show several advantages including large aspect ratio, carboxylated
surface, and excellent thermal stability along with high yield. We
also successfully demonstrate the fabrication of high-performance
films and 3D-printed patterns using DM-OA-CNCs. The high-performance
films with high transparency, ultralow haze, and excellent thermal
stability have the great potential for applications in flexible electronic
devices. The 3D-printed patterns with porous structures can be potentially
applied in the field of tissue engineering as scaffolds