Results 51 to 60 of about 33,048 (279)

Sustainable Process for the Depolymerization/Oxidation of Softwood and Hardwood Kraft Lignins Using Hydrogen Peroxide under Ambient Conditions

open access: yesMolecules, 2020
The present study demonstrated a sustainable and cost-effective approach to depolymerize/oxidize softwood (SW) and hardwood (HW) kraft lignins using concentrated hydrogen peroxide at temperatures ranging from 25 to 35 °C, in the absence of catalysts or ...
Zaid Ahmad   +3 more
doaj   +1 more source

Efficiency of Machine Sanding of Wood

open access: yesApplied Sciences, 2021
We hypothesized that the type of wood, in combination with the grit size of sandpapers, would affect sanding efficiency. Fixed factors were used in the experiment (a belt sander with pressure p = 3828 Pa, and a belt speed of vs = 14.5 m/s) as well as ...
Maciej Sydor   +3 more
doaj   +1 more source

Base-catalyzed oxidative depolymerization of softwood kraft lignin

open access: yes, 2020
Lignin is an important aromatic biopolymer with the structure based on phenolic units. Depolymerized lignin materials can be useful substitutes for phenol in phenol-formaldehyde resins. Our aim was to examine the potential of the base-catalyzed oxidation
H. Paananen   +5 more
semanticscholar   +1 more source

Effect of Sugarcane Bagasse, Softwood, and Cellulose on the Mechanical, Thermal, and Morphological Properties of PP/PE Blend

open access: yesApplied Sciences
The usage of cellulosic fibers as fillers for thermoplastics has generated great interest due to their numerous advantages and benefits compared to conventional fibers.
Samson M. Mohomane, Tshwafo E. Motaung
doaj   +1 more source

Multi‐Scale Bionic Structure Constructs Biomass Flame‐Retardant Thermal Insulation Foam Material

open access: yesAdvanced Science, EarlyView.
Inspired by mussel adhesion and hierarchical brick‐and‐mortar architectures, a cellulose‐based biomimetic foam is constructed by anchoring bentonite nanosheets onto a polydopamine‐decorated cellulose nanofiber network. The resulting foam combines low thermal conductivity with intrinsic flame retardancy and full biodegradability, presenting a ...
Jianming Liao   +10 more
wiley   +1 more source

Effective Lignin-First Fractionation of Softwood Lignocellulose Using a Mild Dimethyl Carbonate Organosolv Process [PDF]

open access: yes, 2019
Large-scale biorefineries converting lignocellulosic biomass into chemicals, fuels, and energy require a cost-effective pretreatment process that can effectively fractionate all main lignocellulose constituents.
Maxim, Galkin   +4 more
core   +2 more sources

Computational and Data‐Driven Strategies for Lignocellulosic Biomass Valorization: From Multiscale Modeling to Digitalized Biorefinery Design

open access: yesAdvanced Science, EarlyView.
This Review critically connects structural recalcitrance, molecular modeling, solvent and catalyst design, pyrolysis, machine learning, reactor simulation, and FAIR digital infrastructure. Emphasis is placed on experimentally validated information transfer across scales, uncertainty and applicability domains, and the recycle, durability, techno ...
Abdullahi Bello Umar   +9 more
wiley   +1 more source

Survey of Subterranean Termite (Isoptera: Rhinotermitidae) Utilization of Temperate Forests

open access: yesSociobiology, 2014
Both native and invasive subterranean termites (Isoptera: Rhinotermitidae), including the Formosan subterranean termite, are well known pests of urban areas, but little is known about their distribution or impact in forest ecosystems of the southeastern ...
Nathan S Little   +3 more
doaj   +3 more sources

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd   +5 more
wiley   +1 more source

Prebiotic role of softwood hemicellulose in healthy mice model

open access: yesJournal of Functional Foods, 2020
We have analyzed the prebiotic effect of softwood hemicelluloses on specific bacterial species in vitro and on microbiota diversity and metabolism in healthy mice in vivo.
Vivien Deloule   +9 more
semanticscholar   +1 more source

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