Results 31 to 40 of about 72,214 (293)

Synthesis and Characterization of Novel Polyurethanes Based on Vegetable Oils Amide and Ester Polyols

Medžiagotyra, 2014
Amide and ester type polyols were synthesized from rapeseed, sunflower and castor oils, and two types of ethanolamine (diethanolamine and triethanolamine) at different molar ratio.
Vladimir YAKUSHIN, Uldis STIRNA, Oskars BIKOVENS, Maria MISANE, Irina SEVASTYANOVA, Dzintra VILSONE   +5 more
doaj   +1 more source

A Strategy to Valorize a By-Product of Pine Wood (Pinus pinaster) for Copper Removal from Aqueous Solutions

Molecules, 2023
This study describes the valorization of a pine wood by-product (Pinus pinaster) in the form of individualized fibers to a complex copper or more broadly metals present in an aqueous solution using a batch process.
Chiara Mongioví, Maélys Jaillet, Dario Lacalamita, Nadia Morin-Crini, Michael Lecourt, Sandra Tapin-Lingua, Grégorio Crini   +6 more
doaj   +1 more source

Fenton-like oxidation and KOH activation on the CO2 adsorption performance of wood-based hierarchical porous carbon

iScience
Summary: Biomass-derived porous carbon is a promising low-cost candidate for CO2 capture, yet its pore structure and adsorption performance require optimization.
Jianying Zhang, Zhe Wang, Xiangkai Wang, Jiaxing Chen, Yuqi Zhang, Weitao Zhang, Lingyun Cheng, Zhangjing Chen, Ximing Wang   +8 more
doaj   +1 more source

Valorization of American Barrel-Shoot Wastes: Effect of Post Fermentative Addition and Readdition on Phenolic Composition and Chromatic Quality of Syrah Red Wines

Molecules, 2020
The influence of post fermentative addition of American barrel-shoot wastes on phenolic composition and chromatic quality of Syrah red wines has been evaluated as an environmentally sustainable alternative to the conventional winemaking for avoiding the ...
Berta Baca-Bocanegra, Julio Nogales-Bueno, José Miguel Hernández-Hierro, Francisco José Heredia   +3 more
doaj   +1 more source

Thermogravimetric Analysis and Kinetic Modeling of the AAEM-Catalyzed Pyrolysis of Woody Biomass

Molecules, 2022
This work analyzes the catalytic effects induced by alkali and alkaline earth metals (AAEMs) on pyrolysis kinetics. To this end, thermogravimetric analyses (TGA) were carried out with raw beech wood and samples impregnated with NaCl, KCl and MgCl2 at ...
Wei Wang, Romain Lemaire, Ammar Bensakhria, Denis Luart   +3 more
doaj   +1 more source

Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications [PDF]

, 2012
In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future.
Yaocihuatl Medina-Gonzalez, Camy, Séverine, Condoret, Jean-Stéphane, Medina-Gonzalez, Yaocihuatl, Severine Camy, Jean-Stéphane Condoret   +5 more
core   +1 more source

Anisotropic MXene@Wood Composites for Tunable Electromagnetic Interference Shielding [PDF]

, 2022
To comply with the increasingly complex and changeful application environment, realizing effective shielding effectiveness (SE) adjustment is the trend of next-generation electromagnetic interference (EMI) shielding materials.
Weiwei, Zhang, Yuyi, Wei, Yanfei, Zhang, Zhenhua, Dai, Chuanshuang, Hu, Xiuyi, Lin   +5 more
core   +1 more source

High Value Utilization of Waste Wood toward Porous and Lightweight Carbon Monolith with EMI Shielding, Heat Insulation and Mechanical Properties

Molecules, 2023
With the increasing pollution of electromagnetic (EM) radiation, it is necessary to develop low-cost, renewable electromagnetic interference (EMI) shielding materials.
Xiaofan Ma, Xiaoshuai Han, Jiapeng Hu, Weisen Yang, Jingquan Han, Zhichao Lou, Chunmei Zhang, Shaohua Jiang   +7 more
doaj   +1 more source

Short Fibre Filler from Wood Residue for Polymeric Composite Materials

Medžiagotyra, 2016
a wood residue – sawdust of the mechanical processing of aspen (Populus tremula) wood – was used to obtain a short fibre filler in the form of the modified microparticles < 250 µm for polymeric composite materials. To reduce energy input for wood size
Galia SHULGA, Brigita NEIBERTE, Anrijs VEROVKINS, Sanita VITOLINA, Jevgenijs JAUNSLAVIETIS, Jurijs OZOLINS   +5 more
doaj   +1 more source

Wood Chemistry Perspectives at TalTech

Proceedings
Despite being the most abundant renewable resource in Estonia, wood has not been fully utilized for its potential value. To fully harness its potential, wood needs to be processed to its core components, such as fibers, wood sugars, and lignin, using ...
Tiit Lukk
doaj   +1 more source