Sökning: "Katarina Theander"

Hittade 2 avhandlingar innehållade orden Katarina Theander.

  1. 1. Surface Chemistry Studies on Surfactant Properties Relevant to Flotation De-inkin

    Författare :Katarina Theander; KTH; []
    Nyckelord :de-inking; sodium oleate; nonionic surfactant; surface tension; foaming;

    Sammanfattning : The objective of this work was to investigate thephysico-chemical properties of common de-inking chemicals. Thishas been done by means of equilibrium and dynamic surfacetension measurements as well as foaming experiments. LÄS MER

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

    Författare :Katarina Theander; Mark Rutland; Krister Holmberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Surface and colloid chemistry; 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