Search for dissertations about: "Methyl Cellulose"

Showing result 16 - 20 of 33 swedish dissertations containing the words Methyl Cellulose.

  2. 16. Film Formation from Dispersions - Preparation and Mechanisms

    Author : Stefan Erkselius; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polymerteknik; biopolymers; Polymer technology; decomposition; sodium persulfate; hyrdoxyethyl cellulose; salt; surfactants; drying; stabilization; latex; Film formation; dispersions;

    Abstract : Improved environmental consciousness and harsh legislation concerning volatile organic compounds (VOCs) during the 1980s led to an increase in the development in the field of polymer colloids. Solvent born coatings were replaced by polymer dispersions in aqueous solution, so called latex dispersions. READ MORE

  4. 17. Processing and characterization of membranes based on cellulose nanocrystals for water purification : Nanocellulose as functional entity

    Author : Zoheb Karim; Marielle Henriksson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Trä och bionanokompositer; Wood and Bionanocomposites;

    Abstract : Membrane technology is being extensively used in water purification as an energy efficient and low cost process. Nanostructured (NSM) and nanoenabled (NEM) membranes are favored in this context as nanoscaled entities are expected to provide high surface area, high mechanical properties and versatile surface chemistry as well as provide better control on the pore size and distribution, flux and selectivity of the membrane. READ MORE

  5. 18. Preparation and characterization of nanoporous cellulose fibres and their use in new material concepts

    Author : Anna Sjöstedt; Lars Wågberg; Akira Isogai; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : The overall objective of the work in this thesis is to better utilize the non-collapsed structure of the delignified wood-fibre cell wall in the preparation of new types of materials.In order to utilize the fibres in new materials, it is crucial to have a well-defined starting material and to know how it reacts to certain treatments of the fibres. READ MORE

  6. 19. Wood Nanocellulose Materials and Effects from Surface Modification of Nanoparticles

    Author : Michaela Salajkova; Lars Berglund; Kritiina Oksman; KTH; []
    Keywords : Nanocellulose; nanoc omposite; dispersion; surface modification; surfa ctant; poly methyl methacrylate ; poly vinyl acetate ; carbon nanotubes; electrospinning; lubricant - infused surfaces;

    Abstract : Nanocellulose is an interesting natural material thatis gaining interest in the field of materials science, particularly nanocomposites. Depending on the disintegration route, nanocellulose can be isolated either in the form of long and flexible fibres (nanofibrillated cellulose, NFC), or stiff, rod-like crystals (cellulose nanocrystals, CNC). READ MORE

  7. 20. Complex Macromolecular Architectures by Atom Transfer Radical Polymerization

    Author : Anna Carlmark; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polymer chemistry; controlled radical polymerization;

    Abstract : Controlled radical polymerization has proven to be a viableroute to obtain polymers with narrow polydispersities (PDI's)and controlled molecular weights under simple reactionconditions. It also offers control over the chain-]ends of thesynthesized polymer. READ MORE