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Wyszukujesz frazę "Magnesium lignosulfonate" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Lignosulfonate and silica as precursors of advanced composites
    Autorzy:
    Klapiszewski, Ł.
    Nowacka, M.
    Siwińska-Stefańska, K.
    Jesionowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/778432.pdf
    Data publikacji:
    2013
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    Magnesium lignosulfonate
    silica
    Silica/lignosulfonate composite
    Physicochemical and structural properties
    Opis:
    Advanced silica/lignosulfonate composites were obtained using magnesium lignosulfonate and silica precipitated in a polar medium. For comparative purposes analogous synthesis was performed using commercial silica Aerosil®200. Lignosulfonates are waste products of paper industry and their application in new multifunctional materials is of great economic interest. The composites obtained were subjected to thorough characterization by determination of their physicochemical, dispersive-morphological and electrokinetic properties. Their particle size distribution was measured, SEM images were taken, FT-IR analysis and colorimetric study were made, thermal and electrokinetic stabilities and parameters of porous structure were also determined. The results can be of interest in further application studies.
    Źródło:
    Polish Journal of Chemical Technology; 2013, 15, 3; 103-109
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lignosulfonate as a byproduct of wood pulp production: A potential precursor for the preparation of functional hybrid materials
    Autorzy:
    Klapiszewski, Łukasz
    Szalaty, Tadeusz J.
    Szatkowski, Tomasz
    Jesionowski, Teofil
    Powiązania:
    https://bibliotekanauki.pl/articles/764065.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
    Tematy:
    lignosulfonate/silica hybrid materials, magnesium lignosulfonate, amorphous silica, development of natural products, physicochemical and structural properties.
    Opis:
    Functional hybrid materials based on magnesium lignosulfonate and silica were obtained and characterized. Magnesium lignosulfonate is a common waste product of the wood pulp industry, while silica is a well-known inorganic material with exceptional physicochemical properties. In this study, silicas with a spherical particle shape were synthesized using a sol-gel method and alternatively in a nonpolar medium. Silica was found to improve the thermal and electrokinetic properties of the final products. The resulting lignosulfonate/silica hybrid materials were analyzed with the use of advanced techniques and measuring methods: scanning electron microscopy, a laser diffraction method enabling particle size measurements, Fourier transform infrared spectroscopy, elemental analysis, thermogravimetry, electrophoretic light scattering, zeta potential measurements, low-temperature nitrogen sorption, and colorimetric analysis. The results enabled the hybrid materials to be characterized from the point of view of potential applications in various branches of industry (for example as polymer fillers, electroactive blends and biosorbents). We additionally indicate new methods for the utilization of waste products, a category to which lignosulfonate certainly belongs.
    Źródło:
    Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2016, 71, 1
    2083-358X
    Pojawia się w:
    Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnesium silicate conjugated with calcium lignosulfonate: In situ synthesis and comprehensive physicochemical evaluations
    Autorzy:
    Klapiszewski, Ł.
    Zietek, J.
    Ciesielczyk, F.
    Siwinska-Stefanska, K.
    Jesionowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/109651.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    biopolymers
    hybrid materials
    synthetic magnesium silicate
    calcium lignosulfonate
    in situ sol-gel route
    Opis:
    The aim of this study was to effectively combine synthetic magnesium silicate with the lignin-derived biopolymer calcium lignosulfonate, using the in situ sol-gel route. Magnesium ethoxide and tetraethoxysilane were used as precursors of MgO and SiO2. The synthesis was carried out in alcoholic solution with the addition of ammonia solution as a promoter of hydrolysis. Calcium lignosulfonate was introduced to the reaction medium prior to the synthesis of magnesium silicate. The resulting hybrid powder material was thoroughly characterized, including morphology and particle sizes (SEM microscopy and the DLS technique), porous structure parameters (the BET method and BJH model), thermal stability (TG analysis) and electrokinetic stability (LDV measurements). FTIR spectral analysis was carried out to confirm the effectiveness of the proposed synthesis methodology. Based on the results, a mechanism is proposed for the MgSiO3/lignosulfonate interactions. The resulting novel type of hybrid material combines the multifunctional nature of the biopolymer (diversity of functional groups) with the well-developed porous structure of synthetic magnesium silicate. Its physicochemical parameters were found to depend significantly on the quantity of lignosulfonate used in the synthesis.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2018, 54, 3; 793-802
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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