Contact
    Start Publications Stabilizing properties of fucoidan for the alumina suspension ...
    ←  Publication Finder
    Attension

    Stabilizing properties of fucoidan for the alumina suspension containing the cationic surfactant

    Year: 2020

    Journal: Carbohydr. Polym., Volume 245, OCT 1

    Authors: Matusiak, Jakub; Grzadka, Elzbieta; Bastrzyk, Anna

    Organizations: National Science Centre, PolandNational Science Centre, Poland [2017/27/N/ST4/02259]; Polish Ministry of Science and Higher EducationMinistry of Science and Higher Education, Poland

    Keywords: Adsorption; Biopolymer; Aluminium(III) oxide; Interface; Electrosteric; Turbidimetry

    The paper presents the influence of fucoidan (FD) on stability of alumina suspensions in the presence of cationic surfactant hexadecyltrimethylammonium bromide (CTAB). The research results show that fucoidan adsorbs on the alumina surface and that the adsorption decreases in the CTAB presence. This is due to formation of the polymer-surfactant complexes characterized by lower affinity for the alumina surface than pure fucoidan. The complex formation was confirmed by the tensiometric studies where the increase of the CTAB/FD surface tension in comparison to pure CTAB was observed. It was established that fucoidan possesses great stabilizing efficiency regardless of pH. Furthermore, stability of the fucoidan/alumina system increased after CTAB addition due to the presence of non-adsorbed complexes between the alumina particles. The results indicate that fucoidan could be successfully used as a stabilizer of colloidal suspensions where the presence of surfactant is required, that is in cosmetic and pharmaceutical industries.
    View publication