Search for dissertations about: "colloidal forces"

Showing result 1 - 5 of 47 swedish dissertations containing the words colloidal forces.

  2. 1. On the interactions in cellulose systems : surface forces and adsorption

    Author : Monika Österberg; KTH; []
    Keywords : cellulose; hemicellulose; xylan; lignin; surface forces; adsorption; polyelectrolyte; SFA; AFM; ESCA; Langmuir-Blodgett films; chitosan; steric forces; bridging; adhesion;

    Abstract : In this thesis the interactions in cellulose systems havebeen studied with emphasis on surface forces and adsorptionphenomenon. The study was limited to surfaces and polymers ofinterest for papermaking. READ MORE

  4. 2. Particle interactions at the nanoscale : From colloidal processing to self-assembled arrays

    Author : Bertrand Faure; Lennart Bergström; Albert Philipse; Stockholms universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Colloidal processing; nanoparticles; colloidal forces; titania; iron oxide; Hamaker constant; surface modification; rheology; Monte Carlo simulations; collective properties; superparamagnetism; finite-size effects; Materials Chemistry; materialkemi;

    Abstract : Nanostructured materials are the next generation of high-performance materials, harnessing the novel properties of their nanosized constituents. The controlled assembly of nanosized particles and the design of the optimal nanostructure require a detailed understanding of particle interactions and robust methods to tune them. READ MORE

  5. 3. 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

  6. 4. Free Energy and Surface Forces in polymer systems: Monte Carlo Simulation Studies

    Author : Andrei Broukhno; Beräkningskemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polyelectrolytes; electrostatic interactions; phase transitions; colloidal stability; surface forces; Monte Carlo simulation; free energy evaluation; polyampholytes; Physical chemistry; Fysikalisk kemi;

    Abstract : The thesis is focused on two major subjects: - Calculation of free energy is of great help in the study of any molecular system. The free energy determines phase behaviour of colloids and polymer solutions. It also controls the conformational properties of single macromolecules, e.g. READ MORE

  7. 5. Polymer Mediated Surface Forces

    Author : Martin Turesson; Beräkningskemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polyelectrolyte Solutions; Charge Inversion; Monte Carlo Simulations; Depletion Stabilization; Correlation Attraction; Colloid stability;

    Abstract : The issue of controlling the stability between colloidal particles in solution is important, at least for industrial applications, relying on efficient flocculation or stable dispersions. The objective of this thesis is to shed some light on fundamental mechanisms behind the interplay between attractive and repulsive forces, in solutions containing colloids and polymers. READ MORE