Search Results - "Borrega, Marc"

Potential of hot water extraction of birch wood to produce high-purity dissolving pulp after alkaline pulping by Borrega, Marc, Tolonen, Lasse K., Bardot, Fanny, Testova, Lidia, Sixta, Herbert

“…► Hot water extractions followed by SAQ pulping produce high-purity cellulose pulps. ► Below a xylan content of 3% in pulp, the cellulose yield dramatically…”
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Cellulose Nanofibril (CNF) Films and Xylan from Hot Water Extracted Birch Kraft Pulps by Borrega, Marc, Orelma, Hannes

“…The effects of xylan extraction from birch kraft pulp on the manufacture and properties of cellulose nanofibril (CNF) films were here investigated. Hot water…”
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Novel concepts of dissolving pulp production by Sixta, Herbert, Iakovlev, Mikhail, Testova, Lidia, Roselli, Annariikka, Hummel, Michael, Borrega, Marc, van Heiningen, Adriaan, Froschauer, Carmen, Schottenberger, Herwig

“…Herein, we report about existing and novel dissolving pulp processes providing the basis for an advanced biorefinery. The SO 2 –ethanol–water (SEW) process has…”
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Antimicrobial and Flame-Retardant Coatings Prepared from Nano- and Microparticles of Unmodified and Nitrogen-Modified Polyphenols by Widsten, Petri, Salo, Satu, Hakkarainen, Tuula, Nguyen, Thu Lam, Borrega, Marc, Fearon, Olesya

“…The purpose of this study was to elucidate the structures and functional properties of tannin- and lignin-derived nano- and microparticles and the coatings…”
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Evaluation of chemical additives in hydrothermal pre-treatment of wood for the integrated production of monosugars and hydrolysis lignins for PLA-based biocomposites by Borrega, Marc, Pihlajaniemi, Ville, Liitiä, Tiina, Wikström, Lisa, Tamminen, Tarja

“…The use of chemical additives (1- and 2-naphthol, formaldehyde) in hydrothermal pre-treatments of pine, birch, and willow wood was evaluated to minimize lignin…”
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Utilizing and Valorizing Oat and Barley Straw as an Alternative Source of Lignocellulosic Fibers by Borrega, Marc, Hinkka, Ville, Hörhammer, Hanna, Kataja, Kirsi, Kenttä, Eija, Ketoja, Jukka A., Palmgren, Rosa, Salo, Minna, Sundqvist-Andberg, Henna, Tanaka, Atsushi

“…The transition to sustainable, biodegradable, and recyclable materials requires new sources of cellulose fibers that are already used in large volumes by…”
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Effects of hot water extraction in a batch reactor on the delignification of birch wood by Borrega, Marc, Nieminen, Kaarlo, Sixta, Herbert

“…The amount of residual lignin in birch wood after a hot water extraction in a batch reactor was investigated as a function of extraction temperature and time…”
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Dissolving-grade birch pulps produced under various prehydrolysis intensities: quality, structure and applications by Testova, Lidia, Borrega, Marc, Tolonen, Lasse K, Penttilä, Paavo A, Serimaa, Ritva, Larsson, Per Tomas, Sixta, Herbert

“…Aqueous-phase prehydrolysis followed by alkaline pulping is a viable process to produce wood-based dissolving pulps. However, detailed characterisation of the…”
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Effect of relative humidity on thermal degradation of Norway spruce (Picea abies) wood by Borrega, Marc, Kärenlampi, Petri P.

“…The rate of thermal degradation of wood as a function of the extent of heat-bath treatment was investigated. At both 150°C and 170°C, the rate of degradation…”
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Hygroscopicity of heat-treated Norway spruce (Picea abies) wood by Borrega, Marc, Kärenlampi, Petri P.

“…Subject Hygroscopicity of heat-treated spruce wood is investigated in relation to the mass loss that occurs during the thermal treatment. It is found that the…”
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Three mechanisms affecting the mechanical properties of spruce [Picea] wood dried at high temperatures by Borrega, M., University of Joensuu (Finland), Kaerenlampi, P.P

“…In screening experiments for antiacne activity, methanolic and 50% ethanolic extracts of Caesalpinia sappan wood showed the most potent activity out of 28…”
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Water Prehydrolysis of Birch Wood Chips and Meal in Batch and Flow-through Systems: A Comparative Evaluation by Borrega, Marc, Sixta, Herbert

“…Water prehydrolysis can be used as a pretreatment to extract hemicelluloses and lignin from biomass prior to its conversion into value-added products. In this…”
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Degradation kinetics of the main carbohydrates in birch wood during hot water extraction in a batch reactor at elevated temperatures by Borrega, Marc, Nieminen, Kaarlo, Sixta, Herbert

“…► Acetic acid recovered exceeds the corresponding amount of acetyl groups in wood. ► Furfural formed during hot water extractions of wood does not appear to…”
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Composition and structure of balsa (Ochroma pyramidale) wood by Borrega, Marc, Ahvenainen, Patrik, Serimaa, Ritva, Gibson, Lorna

“…Balsa, with its low density and relatively high mechanical properties, is frequently used as the core in structural sandwich panels, in applications ranging…”
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Mechanics of balsa (Ochroma pyramidale) wood by Borrega, Marc, Gibson, Lorna J.

“…•Mechanical properties of balsa are related to its cellular structure and modeled based on deformation and failure mechanisms.•In axial compression, bending,…”
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Purification of cellulosic pulp by hot water extraction by Borrega, Marc, Sixta, Herbert

“…Hot water extraction (HWE) of pulp in a flow-through reactor was evaluated as a method to purify paper-grade pulps. About 50–80 % of the xylan and up to 50 %…”
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The chemical-free production of nanocelluloses from microcrystalline cellulose and their use as Pickering emulsion stabilizer by Buffiere, Jean, Balogh-Michels, Zoltán, Borrega, Marc, Geiger, Thomas, Zimmermann, Tanja, Sixta, Herbert

“…•Production of cellulose nanoparticles using microfluidization or nearcritical water.•Two environmentally-friendly, entirely water-based pathways.•GPC, WAXS…”
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Mechanical behavior of heat-treated spruce (Picea abies) wood at constant moisture content and ambient humidity by Borrega, Marc, Kärenlampi, Petri P.

“…The mechanical behavior of heat-treated spruce wood was investigated in relation to the mass loss that occurs during thermal treatment. At constant wood…”
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Impact of hydrothermal and alkaline treatments of birch kraft pulp on the levelling-off degree of polymerization (LODP) of cellulose microfibrils by Borrega, Marc, Ahvenainen, Patrik, Kontturi, Eero

“…The levelling-off degree of polymerization (LODP) is typically considered an apodictic number of each cellulosic source that relates to the length of its…”
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Morphological and Wettability Properties of Thin Coating Films Produced from Technical Lignins by Borrega, Marc, Päärnilä, Sonja, Greca, Luiz G, Jääskeläinen, Anna-Stiina, Ohra-aho, Taina, Rojas, Orlando J, Tamminen, Tarja

“…Technical lignins are widely available as side streams from pulping and biorefining processes. The aromatic structure of such lignins could be exploited in…”
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