Results 31 to 40 of about 196,446 (216)
BioResources, 2015 Extracting lignin from black liquor is an attractive option in modern pulp mills as a unit process for a combined biorefinery. The lignin obtained can be utilized as solid fuel or other high-value added products.
Weizhen Zhu, Hans Theliander
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Copper Adsorption on Lignin for the Removal of Hydrogen Sulfide
Molecules, 2020 Lignin is currently an underutilized part of biomass; thus, further research into lignin could benefit both scientific and commercial endeavors. The present study investigated the potential of kraft lignin as a support material for the removal of ...
Miroslav Nikolic +5 more
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Lignin reinforcement in thermosets composites
, 2022 S.119-151With its highly branched structure, its functional groups, and its free ring positions in the aromatic monomers, lignin is a promising bio-based candidate for network formation in resin formulations for thermosets and thermoset composites.
Ganster, Johannes, Engelmann, Gunnar
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Advanced Functional Materials, EarlyView.Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai +6 more
wiley +1 more source
Liquefaction o Kraft Lignin at Atmospheric Pressure
Journal of Renewable Materials, 2019 Kraft lignin was liquefied using polyethylene glycol #400 (PEG) and glycerol (G) in a weight ratio of 80/20 (w/w) and sulphuric acid (SA) as catalyst under atmospheric pressure at 160ºC. The three independent variables: reaction time (60, 80 and 100 min), percentage of lignin (15, 20 and 25%, w/w), and catalyst concentration (0, 3 and 6%, w/w), were ...
Silvia Helena Fuentes da Silva +5 more
openaire +3 more sources
Investigating the Potential of Using Waste Newspaper to Produce Environmentally Friendly Fiberboard
BioResources, 2022 Waste newspapers (WNPs), composed of mostly wood fibers and small amounts of inorganic fillers and printing ink, are a low-cost, abundant, and readily available form of household waste. Urea formaldehyde (UF) resin is used routinely to produce wood-based
Peng Luo +3 more
doaj +2 more sources
InfrastructuresThis study investigates the feasibility of using Kraft lignin in Hot and Warm Mix Asphalt (HMA and WMA), with a particular focus on its integration alongside Sasobit®. The research aims to evaluate the impact of Kraft lignin and Sasobit, individually and
Ali Rezazad Gohari +4 more
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Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications
Advanced Materials Technologies, EarlyView.Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja +9 more
wiley +1 more source
Modelagem e simulação da polpação kraft antraquinona [PDF]
, 2000 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Química.Em indústrias de celulose, o processo dominante é a polpação Kraft.
Georg, Ivan Carlos
core
Angewandte Chemie International Edition, EarlyView.Renewable guaiacols are rapidly oxidized by phenyliodine(III)diacetate to masked ortho‐quinones, giving a new class of monomers that undergo selective Michael‐type polyaddition with multithiols to from thiol‐guaiacol connectivity‐bearing polymers. The activation applies to discrete monomers and directly to lignin, enabling two‐component adhesives that ...
Dominik P. Hoch +7 more
wiley +1 more source