A5001729337- Advanced Cellulose Research Studies
- Material Properties and Processing
- Nanocomposite Films for Food Packaging
- Electrospun Nanofibers in Biomedical Applications
- Recycling and Waste Management Techniques
- Natural Fiber Reinforced Composites
- Lignin and Wood Chemistry
- Minerals Flotation and Separation Techniques
- Biofuel production and bioconversion
- Pickering emulsions and particle stabilization
- Polysaccharides and Plant Cell Walls
- Materials Engineering and Processing
- Wastewater Treatment and Reuse
- Membrane Separation Technologies
- Enzyme-mediated dye degradation
- Surface Chemistry and Catalysis
- Science, Technology, and Education in Latin America
- Water-Energy-Food Nexus Studies
- Chemistry and Chemical Engineering
- Municipal Solid Waste Management
- Innovative concrete reinforcement materials
- Infrastructure Maintenance and Monitoring
- biodegradable polymer synthesis and properties
- Innovations in Concrete and Construction Materials
- Problem and Project Based Learning
Universidad Complutense de Madrid
2014-2024
Universitat de Girona
2021
Åbo Akademi University
2010
Abstract Recycling cycles cause a decrease in mechanical paper properties due to cellulose fiber degradation. The use of micro/nanofibers (CMF/CNF) reinforce strength has been well studied, although it found have negative effects on drainage. However, the application CMF/CNF as reinforcement is affected by nanocellulose type. Thus this study and chemical treatments CNF production were compared. Old corrugated container (OCC) pulp used produce recycled cartonboard was reinforced with 1) CMF...
Pickering emulsions are stabilized by solid particles, which generally provide a more stable system than traditional surfactants. Among various stabilizers, bio-based particles from renewable resources, such as micro- and nanofibrillated cellulose, may open up new opportunities for the future of owing to their properties nanosize, biodegradability, biocompatibility, renewability. The aim this research was obtain oil-in water (O/W) using cellulose microfibers (CMF) produced cotton linters...
The recycled paper and board industry needs to improve the quality of their products meet customer demands. refining process strength additives are commonly used increase mechanical properties. Interfiber bonding can also be improved using cellulose nanofibers (CNF). A circular economy approach in industrial implementation CNF addressed through situ production side streams as raw material, avoiding transportation costs reducing wastes. Furthermore, fit for use produced specific...
Despite the extraordinary properties of nanocellulose (NC), as confirmed through two decades exhaustive research, addressing an array potential applications, NC market is still far from reaching its full potential. Among main causes lack process-adapted measuring tools capable characterizing NC, at acceptable speed and reliability, to meet industrial demands in a cost-effective way. Therefore, reliable characterization methodologies new standards are paramount importance ensuring...
2,2,6,6-Tetramethylpiperidine-1-oxyl (TEMPO)-mediated oxidation of cellulose is the most effective pretreatment to obtain highly fibrillated nanofibers (CNFs). However, associated environmental impact and high operational costs have limited its implementation at large scale. This study aims improve effectiveness this by reducing time reusing reaction medium, with ultimate objective upscaling a more viable sustainable process. The results show possibility 85% 60% in case cotton eucalyptus...
Flexographic printing technology is an economical, productive, low maintenance and versatile technology.
Abstract Nanocellulose is an emerging material that needs to be well characterized control its performance during industrial applications. Gel point (Ø g ) a convenient parameter commonly used estimate the aspect ratio (AR) of cellulose nano/microfibers (CNFs/CMFs), providing critical information on nanofiber network. However, estimation requires many sedimentation experiments, tedious and time consuming. In this study, simpler faster technique presented Ø , based one or two reducing...
The present paper proposes a novel approach for the morphological characterization of cellulose nano and microfibers suspensions (CMF/CNFs) based on analysis eroded CMF/CNF microscopy images. This offers detailed quantification micro nanofibers networks in product, which allows mode fibrillation associated to different extraction conditions be discerned. information is needed control quality during industrial production. Five raw materials, from wood non-wood sources, were subjected...
Abstract Vegetable trimmings can be used to stabilize edible O/W Pickering emulsions. The lignocellulosic biomass (LCB) from the leek was mechanically treated produce high-yield lignocellulose micro and nanofibrils (LCF) using a high-pressure homogenizer (HPH). Different phase ratios (20/80, 30/70, 40/60 wt.%) were studied. use of micro/nano cellulosic fibers increased stabilization emulsions by 30–40%. In all cases, stable obtained, with emulsification indexes > 92%. respective mechanism...
This paper presents the effect of structure cationic polyacrylamides (CPAMs) on flocculation pulp suspensions and floc properties. A focused beam reflectance measurement (FBRM) probe was used to monitor flocculation, deflocculation, reflocculation processes in real time. To carry out study, 1% elemental chlorine free (ECF) eucalyptus kraft containing 20% ground calcium carbonate (GCC) used. Results show that CPAM depends charge density polymer dose. Floc size does not always decrease with...
Aim of study: The purpose this study is to analyze how paper recycling activities in Europe can be extended through different improvements along the value chain. importance lies identification present barriers and they overcome.Area Europe.Material Methods: All main stages chain have been analyzed for possible improvements: collection recovered (availability quality), sorting paper, production, printing converting activities.Main results: To increase following are necessary. First, it...