1. Cellulose Nanocrystals (CNC) PROCESS – STRUCTURE LINKAGE
ACID HYDROLYSIS – PARTICLE MORPHOLOGY
Presentation 1
Sezen YUCEL

2. Outline DESCRIPTION MOTIVATION PRODUCTION PROCESS
PROCESS – STRUCTURE LINKAGE
NEXT STEPS

3. CELLULOSE NANOCRYSTAL (CNC)
SOURCED FROM BIOMASS
ROD – SHAPED
NANO PARTICLES
HIGHLY CRYSTALLINE STRUCTURES
SEM image from Cellulose Nanocrystal Reference Material Certificate, National Research Council Canada
CNC photos from University of Maine – The Process Development Center

4. MOTIVATION – CNC PROPERTIES
MATERIAL PROPERTIES*:
Most abundant, bio-compatible, cheap
Numerous applications However  lack of standardization/characterization
* Table is taken from “Cellulose nanomaterials review: structure, properties and nanocomposites”, 2011

5. pRODUCTION
Cellulose extraction from biomass (Mechanical and/or chemical pulping)
Acid hydrolysis or oxidation
CNC

6. Process Parameters Source Hydrolysis Conditions
Bacteria, tunicate, wood
Hydrolysis Conditions
Acid, enzymatic, mechanical

7. Particle analysis Different stacking features: Individual particles
(no intersection)
Overlapping particles

8. Segmented image (after the pre-processing steps)
Once we can clearly (without losing any information such as pixels at the end of a particle) classify all particles as white region and the background as black, then each object will be able to be detected automatically with its properties like location, size, area, …