Sökning: "emulsion stability"

Visar resultat 16 - 20 av 33 avhandlingar innehållade orden emulsion stability.

  1. 16. The dynamic surface nature of calcite and its role in determining the adsorptive stability toward hydrophobizing carboxylic fatty acids

    Författare :Natalia Wojas; Per M. Claesson; Agne Swerin; Jan van Stam; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; calcite; recrystallization; surface modification; fatty acids; wear resistance; water resistance; contact angle hysteresis; AFM; XPS; VSFS; Kalcit; rekristallisation; ytmodifiering; fettsyra; nötningsbeständighet; vattenbeständighet; kontaktvinkelhysteres; Physical Chemistry; Fysikalisk kemi; Natural Sciences; Naturvetenskap; Chemical Sciences; Kemi; Tribology Interacting Surfaces including Friction; Lubrication and Wear ; Tribologi ytteknik omfattande friktion; nötning och smörjning ; Kemi;

    Sammanfattning : Calcium carbonate has attracted a lot of interest over the centuries. Nowadays, mainly as mineral pigment and filler, it has a wide use in technological applications ranging from paper, construction, polymers, and environmental solutions to consumer goods. LÄS MER

  3. 17. A Waterborne Colloidal Model System Consisting of Fluorinated Spheres Bearing Grafted PEG: Synthesis, Characterization and Properties

    Författare :Jeanette Ulama; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; colloidal model system; steric stabilization; core-shell; poly ethylene glycol PEG ; heptafluorobutyl methactylate HFBMA ; fluorinated; polymer; phase behavior; short-range attractions; semi-batch emulsion polymerization; small angle X-ray scattering SAXS ; smearing effects; dynamic light scattering DLS ; cryogenic-transmission electron microscopy cryo-TEM ;

    Sammanfattning : Model systems have expanded our knowledge of numerous phenomena in Colloid Science, such as the appearance of glasses, order-disorder transitions involving crystals and attraction induced formation of gels. So far, the existing colloidal model systems have been limited mainly to nonaqueous media. LÄS MER

  4. 18. Molecularly Imprinted Polymer Beads-Synthesis, Evaluation and Applications

    Författare :Tongchang Zhou; Tillämpad biokemi; []
    Nyckelord :Molecularly imprinted polymer beads; Pickering emulsion; RAFT; water-compatible;

    Sammanfattning : Molecularly imprinted polymers (MIPs) are artificial receptors designed for the selective recognition of template molecules. These polymers have been applied in analytical separations, as chemical sensors and in drug delivery system due to their low cost and high stability. LÄS MER

  5. 19. Formulations, Release and Skin Penetration of Topical Anesthetics

    Författare :Katayoun Welin-Berger; Brian W. Barry; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacy; FARMACI; PHARMACY; FARMACI; galenisk farmaci; Pharmaceutics;

    Sammanfattning : This thesis describes certain critical aspects of the development of semisolid topical anesthetic formulations requiring a fast onset of action. Furthermore, local anesthetics were investigated regarding their phase interaction with membrane lipids. LÄS MER

  7. 20. Functionalization and characterization of aqueous silica sols and their application in Pickering emulsions

    Författare :Sanna Björkegren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Pickering emulsions; functionalized colloidal silica; surface activity; NMR spectroscopy;

    Sammanfattning : The main objective of this thesis is to create an understanding of how surface functionalized colloidal silica can be utilized in emulsions stabilized solely by particles, so called Pickering emulsions. To achieve this, water-based silica sols have been functionalized with hydrophilic and hydrophobic groups. LÄS MER