Drying cellulose - based materials containing copper nanoparticles Tuhua ZHONG, PhD Student Gloria S. OPORTO, Assistant Professor Division of Forestry and Natural Resources, West Virginia University, Morgantown, WV 26506, USA 58 th SWST International Convention June 7-12, 2015, Jackson Lake Lodge Jackson, Wyoming
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Drying cellulose - based materials
containing copper nanoparticles
Tuhua ZHONG, PhD Student
Gloria S. OPORTO, Assistant Professor
Division of Forestry and Natural Resources,
West Virginia University, Morgantown, WV 26506, USA
58th SWST International Convention
June 7-12, 2015, Jackson Lake Lodge
Jackson, Wyoming
Overview
Long-Term Goal – Introduction
Main Goal of this work
Work performed
Results & Discussion
Conclusions
Long - term goal
To promote the utilization of
nanocellulose in areas of high economic
and social impact.
Introduction
Nanocellulose
nanofibrilated cellulose (NFC) &
Nanocrystalline cellulose (NCC)
Webinar: Cellulose Nanofibers (CNF),
VTT Technical Research Centre of Finland May 29, 2015
nanofibrilated cellulose (NFC) or CNF
Webinar: Cellulose Nanofibers (CNF),
VTT Technical Research Centre of Finland May 29, 2015
Introduction
Non-toxic, highly available, biodegradable, renewable, biocompatible, high specific surface area, and feasible to be chemically modified.
Nanocellulose
Application of nanocellulose:
High value added – Functionalization
Introduction
Copper nanoparticles as antimicrobial material
synthesized in situ on cellulose-based materials.
Application of nanocellulose:
Wet (papermaking) Dry (ex. in combination with thermoplastic resins)
optimizing drying processes, dispersability, process adaptability.
Introduction
Drying cellulose / nanocellulose
Introduction
Air Oven Spray drying
(atomization of liquid droplets-contact of the droplets with hot drying gas)
Freeze drying (removing water from a frozen sample by sublimation and desorption under vacuum)
Solvent exchange – Freeze drying(less hydrophilic liquid (typically an alcohol) reduces the capillary stresses during the drying
process)
Main goal of this work
For hybrids cellulose-based materials and copper nanoparticles…