Sökning: "TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Yt- och kolloidkemi"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Yt- och kolloidkemi.

  1. 1. Generation, stability and migration of montmorillonite colloids in aqueous systems

    Författare :Sandra García García; KTH.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Bentonite; montmorillonite; colloid stability; colloid migration; geological disposal; nuclear waste; granitic fractures; ; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; NATURAL SCIENCES Chemistry Environmental chemistry Environmental toxicology; NATURVETENSKAP Kemi Miljökemi Miljötoxikologi; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Surface and colloid chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Yt- och kolloidkemi; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Nuclear chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Kärnkemi;

    Sammanfattning : In Sweden the encapsulated nuclear waste will be surrounded by compacted bentonite in the granitic host rock. In contact with water-bearing fractures the bentonite barrier may release montmorillonite colloids that may be further transported in groundwater. LÄS MER

  2. 2. Interfacial Properties of Biomacromolecular Model Systems: Surface Forces and Nanotribology

    Detta är en avhandling från Stockholm : KTH

    Författare :Niklas Nordgren; KTH.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; afm; surface force; friction; composite material; model surface; quartz crystal microbalance; dissipation; cellulose; xyloglucan; chitosan; colloidal probe; nanotribology; biomimetic; enzymatic; polysaccharide; graft; fiber; thiol; spring constant; calibration; lubrication; polyion; responsive.; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Surface and colloid chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Yt- och kolloidkemi;

    Sammanfattning : The nanotribology, adhesion and related interfacial properties of biomacromolecular systems have been studied.  The aim was to elucidate the role of physisorbed and chemically grafted bio-polymers implicated as mediators for cellulose based processing and material design. LÄS MER

  3. 3. Electric Fields for Surface Design and Chemical Analysis

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Christian Ulrich; Linköpings universitet.; Linköpings universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Electric fields; Surface design; Chemical analysis; Bipolar electrodes; Impedance spectroscopy; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Electrochemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Elektrokemi; NATURAL SCIENCES Chemistry Physical chemistry Chemical physics; NATURVETENSKAP Kemi Fysikalisk kemi Kemisk fysik; NATURAL SCIENCES Chemistry Physical chemistry; NATURVETENSKAP Kemi Fysikalisk kemi; NATURAL SCIENCES Chemistry Physical chemistry Surface and colloid chemistry; NATURVETENSKAP Kemi Fysikalisk kemi Yt- och kolloidkemi;

    Sammanfattning : This thesis deals with the use of electric fields for evaluation and control of chemical systems. An electric field can result in the flow of charge across an interface between a metal and a solution, by means of chemical reactions. This interplay between electricity and chemistry, i.e. LÄS MER

  4. 4. Studies of surfactant behaviour and model surfaces relevant to flotation deinking

    Detta är en avhandling från Stockholm : KTH

    Författare :Katarina Theander; KTH.; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Surface and colloid chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Yt- och kolloidkemi;

    Sammanfattning : The objective of this work was to investigate the behaviour of some model surfactants used in the deinking process, namely, sodium oleate and two ethoxylated nonionic surfactants (C12E6 and C14E6) as well as to investigate the suitability of various model substrates for mimicking interactions in technical systems. The influence of the adsorption to the air � water interface has been measured by means of equilibrium and dynamic surface tension measurements, as well as foaming experiments. LÄS MER

  5. 5. Self assembly of surfactants and polyelectrolytes in solution and at interfaces

    Detta är en avhandling från Stockholm : KTH

    Författare :Luis Alejandro Bastardo Zambrano; KTH.; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Surfactant; polyelectrolyte; small–angle neutron scattering; static light scattering; dynamic light scattering; polyelectrolyte–surfactant association; protein; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Surface and colloid chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Yt- och kolloidkemi;

    Sammanfattning : This thesis focuses on the study of the interactions between polyelectrolytes and surfactants in aqueous solutions and at interfaces, as well as on the structural changes these molecules undergo due to that interaction. Small–angle neutron scattering, dynamic, and static light scattering were the main techniques used to investigate the interactions in bulk. LÄS MER