Search Results - "Gamelas, José A. F"

Recycling Waste Seashells to Produce Calcitic Lime: Characterization and Wet Slaking Reactivity by Ferraz, Eduardo, Gamelas, José A. F., Coroado, João, Monteiro, Carlos, Rocha, Fernando

“…The present work aimed at valorizing marine bivalve shells. First, clam, mussel, edible cockle, wedge, razor, oyster, dog cockle and scallop shells wastes were…”
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High-performance delignification of invasive tree species wood with ionic liquid and deep eutectic solvent for the production of cellulose-based polyelectrolytes by Almeida, Ricardo O, Moreira, Adriana, Moreira, Daniela, Pina, Maria E, Carvalho, Maria G. V. S, Rasteiro, Maria G, Gamelas, José A. F

“…An efficient and eco-friendly process for lignocellulosic biomass fractionation is essential for the production of high value-added bioproducts from biomass…”
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Polyoxometalate/laccase-mediated oxidative polymerization of catechol for textile dyeing by Kim, Suyeon, Silva, Carla, Evtuguin, Dmitry V, Gamelas, José A. F, Cavaco-Paulo, Artur

“…The synergistic effect between polyoxometalates (POMs), namely K₅[SiW₁₁VVO₄₀]·11H₂O and H₅[PMo₁₀VV ₂O₄₀]·13H₂O and laccase from ascomycete Myceliophthora…”
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Nanocelluloses and Their Applications in Conservation and Restoration of Historical Documents by Marques, Ana P S, Almeida, Ricardo O, Pereira, Luís F R, Carvalho, Maria Graça V S, Gamelas, José A F

“…Nanocelluloses have gained significant attention in recent years due to their singular properties (good biocompatibility, high optical transparency and…”
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Rheology of Suspensions of TEMPO-Oxidised and Cationic Cellulose Nanofibrils-The Effect of Chemical Pre-Treatment by Alves, Luís, Magalhães, Solange, Pedrosa, Jorge F S, Ferreira, Paulo J T, Gamelas, José A F, Rasteiro, Maria Graça

“…Cellulose nanofibrils (CNFs) are particles with a high aspect ratio. Typically, chemically pre-treated CNFs (containing anionic or cationic charged groups)…”
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Evaluation of Anionic and Cationic Pulp-Based Flocculants With Diverse Lignin Contents for Application in Effluent Treatment From the Textile Industry: Flocculation Monitoring by Grenda, Kinga, Gamelas, José A F, Arnold, Julien, Cayre, Olivier J, Rasteiro, Maria G

“…In wastewater treatment, flocculation is a widely used solid/liquid separation technique, which typically employs a charged polymer, a polyelectrolyte (PEL)…”
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Comparison of Surface Properties of Sepiolite and Palygorskite: Surface Energy and Nanoroughness by Almeida, Ricardo, Ferraz, Eduardo, Santarén, Julio, Gamelas, José A. F.

“…The surface properties of two sepiolite samples and one palygorskite sample were compared using inverse gas chromatography (IGC). Samples were previously…”
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Evaluation of Silica-Coated PCC as New Modified Filler for Papermaking by Lourenço, Ana F, Gamelas, José A. F, Zscherneck, Christin, Ferreira, Paulo J

“…Silica-coated precipitated calcium carbonate (PCC) prepared by a sol–gel method in a previous study, was used, for the first time, as filler for papermaking…”
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Design of cellulose nanofibre-based composites with high barrier properties by Alves, Luís, Ramos, Ana, Ferraz, Eduardo, Ferreira, Paulo J. T., Rasteiro, Maria G., Gamelas, José A. F.

“…Gas barrier properties are very relevant in composite materials for applications so diverse such as food packaging, electronics, or old document restoration…”
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Impact of bacterial cellulose on the physical properties and printing quality of fine papers by Lourenço, Ana F., Martins, Daniela, Dourado, Fernando, Sarmento, Pedro, Ferreira, Paulo J.T., Gamelas, José A.F.

“…Bacterial nanocellulose (BNC), due to its inherent nanometric scale and strength properties, can be considered as a good candidate to be used in papermaking…”
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Influence of TEMPO-oxidised cellulose nanofibrils on the properties of filler-containing papers by Lourenço, Ana F., Gamelas, José A. F., Nunes, Tiago, Amaral, José, Mutjé, Peré, Ferreira, Paulo J.

“…In this work, cellulose nanofibrils (CNF) were produced from a Eucalyptus globulus bleached kraft pulp by TEMPO-mediated oxidation and mechanical…”
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Cellulose micro and nanofibrils as coating agent for improved printability in office papers by Lourenço, Ana F., Gamelas, José A. F., Sarmento, Pedro, Ferreira, Paulo J. T.

“…The use of nanocelluloses is being conducted for the most diverse applications. Their performance as coating agent has been mainly explored to improve barrier…”
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Carboxymethylated cellulose nanofibrils in papermaking: influence on filler retention and paper properties by Lourenço, Ana F., Godinho, Diana, Gamelas, José A. F., Sarmento, Pedro, Ferreira, Paulo J. T.

“…The papermaking industry competitiveness has been exponentially increasing. In order to improve the paper properties, processes have to be optimized in such a…”
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A comprehensive study on nanocelluloses in papermaking: the influence of common additives on filler retention and paper strength by Lourenço, Ana F., Gamelas, José A. F., Sarmento, Pedro, Ferreira, Paulo J. T.

“…Nanocelluloses are being explored and produced at an impressively increasing pace. Due to their good characteristics as reinforcement agent, their application…”
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Improving Colloidal Stability of Sepiolite Suspensions: Effect of the Mechanical Disperser and Chemical Dispersant by Luís Alves, Eduardo Ferraz, Julio Santarén, Maria G. Rasteiro, José A. F. Gamelas

“…To allow the use of fibrous-like clays, as sepiolite, in different applications, their disaggregation and the formation of stable suspensions are crucial steps…”
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Delignification of eucalypt kraft pulp with manganese-substituted polyoxometalate assisted by fungal versatile peroxidase by Marques, Gisela, Gamelas, José A.F., Ruiz-Dueñas, Francisco J., del Rio, José C., Evtuguin, Dmitry V., Martínez, Angel T., Gutiérrez, Ana

“…Oxidation of the manganese-substituted polyoxometalate [SiW11MnII(H2O)O39]6− (SiW11MnII) to [SiW11MnIII(H2O)O39]5− (SiW11MnIII), one of the most selective…”
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Up-scaling of tannin-based coagulants for wastewater treatment: performance in a water treatment plant by Grenda, Kinga, Arnold, Julien, Gamelas, José A. F., Rasteiro, Maria G.

“…Tannin extracts from the bark of Acacia mearnsii and wood of Schinopsis balansae , commonly known as Quebracho , were employed. These were modified at…”
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A more eco-friendly synthesis of flocculants to treat wastewaters using health-friendly solvents by Lourenço, Anita, Arnold, Julien, Gamelas, José A. F., Rasteiro, Maria G.

“…The main objective of this work was to investigate the possibility of producing new polyelectrolytes (flocculants) synthesized using health-friendly…”
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surface properties of cellulose and lignocellulosic materials assessed by inverse gas chromatography: a review by Gamelas, José A. F

“…The physicochemical surface properties of cellulose and lignocellulosic materials are of major importance in the context of the production of composites, in…”
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Improving Paper Mechanical Properties Using Silica-modified Ground Calcium Carbonate as Filler by Lourenço, Ana F., Gamelas, José A. F., Sequeira, João, Ferreira, Paulo J., Velho, José L.

“…The ability to increase the filler content of paper without significantly sacrificing its mechanical strength is of high interest for papermakers. In this…”
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