A5060232257- Advanced Cellulose Research Studies
- Electrospun Nanofibers in Biomedical Applications
- Lignin and Wood Chemistry
- Nanocomposite Films for Food Packaging
- Drilling and Well Engineering
- biodegradable polymer synthesis and properties
- Wood Treatment and Properties
- Natural Fiber Reinforced Composites
- Material Properties and Processing
- Polysaccharides and Plant Cell Walls
- Surface Modification and Superhydrophobicity
- Advanced Sensor and Energy Harvesting Materials
- Biosensors and Analytical Detection
- Silk-based biomaterials and applications
- Biofuel production and bioconversion
- Membrane Separation Technologies
- Mosquito-borne diseases and control
- Adsorption and biosorption for pollutant removal
- Hydrogels: synthesis, properties, applications
- Enzyme-mediated dye degradation
- Pickering emulsions and particle stabilization
- Diatoms and Algae Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Periodontal Regeneration and Treatments
- Nanoparticles: synthesis and applications
Auburn University
2012-2025
Forest Products Laboratory
2024
University of Massachusetts Amherst
2024
Mississippi State University
2022
Instituto de Ciencia de Materiales de Madrid
2020
VTT Technical Research Centre of Finland
2012-2018
North Carolina State University
2009-2014
Aalto University
2010
Cellulose nanocrystals (CN) were used to reinforce nanofibers in composite mats produced via electrospinning of poly(vinyl alcohol) (PVA) with two different concentrations acetyl groups. Ultrathin cross-sections the obtained nanocomposites consisted fibers maximum diameters about 290 nm for all CN loads investigated (from 0 15% loading). The process did not affect structure PVA polymer matrix, but its degree crystallinity increased significantly together a slight increase corresponding...
We elucidate the effect of residual lignin on interfacial, physical and mechanical properties lignocellulose nanofibrils (LCNF) respective nanopapers.
Technical lignins are structurally heterogeneous and polydisperse. This work describes the use of a simple green method for lignin fractionation, using different proportions acetone (40 60%) in water. Lignins from three sources (wheat straw organosolv lignin, wheat soda softwood kraft lignin) were used this fractionation protocol. The obtained fractions showed molar mass functional groups. lower more phenolic hydroxyl groups carboxylic acid moieties than higher fractions, which also...
We studied the use of cellulose nanocrystals (CNXs) obtained after acid hydrolysis ramie fibers to reinforce poly(ε-caprolactone) (PCL) nanofibers. Chemical grafting with low-molecular-weight PCL diol onto CNXs was carried out in an attempt improve interfacial adhesion fiber matrix. Grafting confirmed via infrared spectroscopy and thermogravimetric analyses. The polymer matrix consisted electrospun nanofibers that were collected as nonwoven webs. morphology well thermal mechanical properties...
The effect of humidity on the morphological and thermomechanical properties electrospun poly(vinyl alcohol) (PVA) fiber mats reinforced with cellulose nanocrystals (CNs) was investigated. Scanning electron microscopy (SEM) images revealed that incorporation CNs improved stability composite fibers even in high environments. Thermal mechanical were studied by using differential scanning calorimetry (DSC), dynamic analysis (DMA), large deformation tensile tests under controlled temperatures....
Abstract Commercialization of cellulose nanocrystals ( CNC ) presents opportunities for a wide range new products. Techno‐economic assessments can provide insightful information the efficient design conversion processes, drive cost‐saving efforts, and reduce financial risks. In this study, we conducted techno‐economic production using from USDA Forest Products Laboratory Pilot Plant, literature, discussions with experts. Scenarios considered included variations related to greenfield,...
Abstract Conversion economics, risk, and financial analyses for an industrial facility manufacturing cellulose micro‐ nanofibrils (CMNF) from wood pulp is presented. Process data based on mass energy balances a pilot in the University of Maine. Here, CMNF produced untreated by using disk refining, with assumed production capacity 50 t (dry metric ton equivalent) per day. Stand‐alone co‐location facilities were simulated assessed. Minimum product selling prices (MPSP, estimated to achieve 16%...
ABSTRACT Acid‐catalyzed vapor phase esterification with maleic anhydride was used to improve the integrity and thermo‐mechanical properties of fiber webs based on poly(vinyl alcohol), PVA. The fibers were produced by electrospinning PVA from aqueous dispersions containing cellulose nanocrystals (CNCs). effect CNC loading structure solvent resistance electrospun investigated. Chemical characterization (FTIR, NMR) indicated formation ester bonds between hydroxyl groups belonging neighboring...
Although the removal of lignin and hemicelluloses from cellulose pulp to produce fully bleached nanofibrils (B-CNF) is most common practice, presence residual in raw materials for production containing (LCNFs) holds several advantages. In this work, we investigated effect Eucalyptus globulus fibers on properties resulting LCNFs. The stability colloidal suspensions was assessed by zeta-potential values charge density analyses. Morphology CNFs studied using scanning electron microscopy atomic...
Introduction of a hydrophobic shell to regenerated cellulose-based bead through gas-phase esterification results in slowing plant nutrient release by an order magnitude.
Abstract This study developed wood composition analysis by integrating nonlinear techniques, the first derivative as a mathematical pretreatment, and Box-Behnken design to reduce sample size for predictive models in downed timber characterization. Utilizing 15 out of 176 core samples subjected year natural degradation, exhibited comparable efficiency full set reported literature. Spectral pretreatment highlighted efficacy smoothing, achieving balanced distribution explained variance. Support...