Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Vadims Shakels"'
Autor:
Dalia Ambrazaitene, Olga Belous, Julia Brovkina, Anris Verovkins, Brigita Neiberte, Vadims Shakels, Talrits Betkers, Galia Shulga, Audrone Žukauskaite
Publikováno v:
BioResources, Vol 2, Iss 4, Pp 572-582 (2007)
The lignosulphonate/polymer complex, in which the macromolecules of both components are linked together by physico-chemical bonds, has been applied as a new effective lignin-based soil conditioner (LSC). lt has an adhesive affinity both for mineral s
Externí odkaz:
https://doaj.org/article/c50e89a352d5413bb4152f8a3834ccb7
Autor:
Galia Shulga, Brigita Neiberte, Sandra Livcha, Vadims Shakels, Jevgenijs Jaunslavietis, Anrijs Verovkins, Sanita Vitolina
Publikováno v:
BioResources. 16:2804-2823
A lignin-containing adhesion enhancer, a water-soluble polyelectrolyte complex (LPEC) composed of soda hardwood lignin (HASL) and polyethylenimine (PEI), and the effect of the treatment of hydrolyzed and ammoxidized aspen sawdust with the LPEC nanopa
Autor:
Jevgenijs Jaunslavietis, Galia Shulga, Anrijs Verovkins, Brigita Neiberte, Vadims Shakels, Jurijs Ozolins, Sanita Vitolina
Publikováno v:
Key Engineering Materials. 800:200-204
As the demand for sustainable environment friendly materials increases, the biocomposites such as wood-polymer composite (WPC) have gained more attention in past years. Wood wastes and by-products like sawdust, chips, bark and wood residues as well a
Autor:
Brigita Neiberte, Vadims Shakels, Jurijs Ozolins, Jevgenijs Jaunslavietis, Sanita Vitolina, Anrijs Verovkins, Galia Shulga
Publikováno v:
Solid State Phenomena. 267:68-75
The aim of the study was to evaluate the surface energetic characteristics of wood-polymer composites (WPCs) based on recycled polypropylene (rPP) filled with ammoxidised lignocellulosic microparticles, obtained from aspen sawdust, a by-product of a
Autor:
Galia Shulga, Brigita Neiberte, Jevgenijs Jaunslavietis, Sanita Vitolina, Ján Sedliačik, Anrijs Verovkins, Vadims Shakels
Publikováno v:
Key Engineering Materials. 688:122-130
The aim of this work was to obtain eco-friendly constituents for making wood-polymer composites (WPCs) by rational utilisation of hardwood residue with its mechanical processing and purposeful chemical modification. To reduce the energy input for res
Autor:
Anrijs Verovkins, Galia Shulga, Jevgenijs Jaunslavietis, Brigita Neiberte, Sanita Vitolina, Vadims Shakels, Jurijs Ozolins
Publikováno v:
AIP Conference Proceedings.
The effect of different treatment of hardwood sawdust under mild conditions on contact angles, adhesion energy and water sorption was studied. A comparison of these indices for the hardwood treated sawdust and the composites filled with them was perf
Publikováno v:
hfsg. 63:711-714
Surface tension of kraft lignin (KL) and KL/poly(N,N-dimethylaminoethyl methacrylate) mixtures, with different composition at the air-water interface depending on pH and temperature, was measured. It was found that the surface activity of both KL and
Publikováno v:
Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference; Vol 1 (2011): Environment. Technology. Resources. Proceedings of the 8th International Scientific and Practical Conference. Volume 1; 282-287
Model wastewater, imitating the hydrothermal treatment of birch wood in the basins of veneer production, was obtained under laboratory conditions. Birch lignin (BLIG) was isolated from the model wastewater by precipitation with concentarted sulphuric