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Wyniki wyszukiwania dla: POLYMER COMPOSITES

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Wyniki wyszukiwania dla: POLYMER COMPOSITES

  • The influence of the type of composition of PVA-chitosan blends on stability at elevated temperature

    Dane Badawcze
    open access

    The dataset shows the results of a visual evaluation of chitosan and polyvinyl alcohol composites. The composites were prepared by combining chitosan water solutions, dissolved in selected acids, and polyvinyl alcohol solution, freeze drying, and heating at 150°C dry composites. The results confirm that the chitosan / PVA composites, in which the first...

  • Polymers doped by Ca or P. Chemical composition investigations

    Dane Badawcze
    open access

    The calcium and phosphorus doped polyurethane polymers (PU) were analyzed by XPS method. A series of samples with various content of Ca and P dopand - from 0% up to 21%) were selected for measutements. The chemical composition and valence state of elements were measurements using OmicronNatechnology UHV system wih  Argus hemispherical photoelectron...