Search for dissertations about: "colloidal stability"

Showing result 1 - 5 of 91 swedish dissertations containing the words colloidal stability.

  2. 1. Colloidal interactions and arrested dynamics of cellulose nanofibrils

    Author : Malin Nordenström; Lars Wågberg; Torbjörn Pettersson; Lars Göran Ödberg; Andreas Fall; Wim Thielemans; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cellulose nanofibrils; colloidal interactions; colloidal stability; arrested state; colloidal glass; colloidal gel; tracer diffusion; counterion; steric stabilization; redispersion; redispersion agent; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Over the past decades, concerns for the environment have increased and efforts to achieve a sustainable society have intensified. One particular challenge is to replace fossil-based plastics with biodegradable materials produced from renewable resources. READ MORE

  4. 2. Cellulose nanofibril materials with controlled structure : the influence of colloidal interactions

    Author : Andreas Fall; Lars Wågberg; Anna Finne Wistrand; Paul Gatenholm; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Colloidal stability; cellulose nanofibrils; nanofibers; nanostructured materials; biocomposite; DLVO; gel;

    Abstract : Nanoparticles are very interesting components. Due to their very large specific surface area they possess properties in between molecules and macroscopic materials. In addition, a material built up of hierarchically assembled nanoparticles could obtain unique properties, not possessed by the nanoparticles themself. READ MORE

  5. 3. Studies of Colloidal Stability Using Diffusion NMr and Optical Scanning

    Author : Helena Wassenius; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; depletion flocculation; q-space analogy; colloidal stability; PFG-SE NMR; paraffin; diffraction; hexadecane; core-shell latex; experimental design; spherical geometry;

    Abstract : .... READ MORE

  6. 4. Colloidal interactions and orientation of nanocellulose particles

    Author : Andreas Fall; Lars Wågberg; Magnus Norgren; Markus Biesalski; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NFC; CNC; CNF; MFC nanocellulose; colloidal stability; orientation;

    Abstract : Nanoparticles are very interesting building blocks. Their large surface-to-bulk ratio gives them different properties from those of larger particles. Controlling their assembly can greatly affect macroscopic material properties. READ MORE

  7. 5. Sterically stabilised liposomes and related lipid aggregates : Fundamental studies on aggragate structure and stability

    Author : Markus Johnsson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; liposome; steric stabilisation; colloidal stability; cryo-TEM; drug delivery; Fysik; Physics; Fysik; Physical Chemistry; fysikalisk kemi;

    Abstract : Various aspects of and approaches towards the steric stabilisation of liposomes have been investigated, mainly by use of fluorescence techniques and cryo-transmission electron microscopy (cryo-TEM). It is shown that PEG(2000)-lipids can be incorporated in the liposome membrane up to a critical concentration of 8-10 mol% without any observable structural perturbations. READ MORE