Sökning: "polyvinyl alcohol"

Visar resultat 1 - 5 av 19 avhandlingar innehållade orden polyvinyl alcohol.

  1. 1. Effects of plasticizing and crosslinking on the mechanical and barrier properties of coatings based on blends of starch and poly(vinyl alcohol)

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Asif Javed; Karlstads universitet.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Citric acid; Glycerol; Polyethylene glycol; Barrier properties; Starch; Mechanical properties; Polyvinyl alcohol; Adhesion; Cross linking; Extrusion coating; Chemical Engineering; Kemiteknik;

    Sammanfattning : In the last decades, intensive research has been carried out in order to replace oil-based polymers with bio-based polymers due to growing environmental concerns. So far, most of the barrier materials used in food packaging are petroleum-based materials. LÄS MER

  2. 2. Printability and Ink-Coating Interactions in Inkjet Printing

    Detta är en avhandling från Fakulteten för teknik- och naturvetenskap

    Författare :Erik Svanholm; Karlstads universitet.; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik; Chemical Engineering; Kemiteknik; coating; inkjet; print quality; printability; pigment; silica; polyvinyl alcohol; colorant; ink absorption;

    Sammanfattning : Inkjet is a digital printing process where the ink is ejected directly onto a substrate from a jet device driven by an electronic signal. Most inkjet inks have a low viscosity and a low surface tension, which put high demands on the coating layer’s porosity and absorbency characteristics. LÄS MER

  3. 3. Structural studies of microbubbles and molecular chaperones using transmission electron microscopy

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Johan Härmark; KTH.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Transmission electron microscopy; Contrast agent; Microbubble; Polyvinyl alcohol; Single particle analysis; Heat shock protein; Molecular chaperone; Teknik och hälsa; Technology and Health;

    Sammanfattning : Ultrasound contrast agents (CAs) are typically used in clinic for perfusion studies (blood flow through a specific region) and border delineating (differentiate borders between tissue structures) during cardiac imaging. The CAs used during ultrasound imaging usually consist of gas filled microbubbles (MBs) (diameter 1-5 μm) that are injected intravenously into the circulatory system. LÄS MER

  4. 4. Modified Starches in aqueous and plastisol coating

    Detta är en avhandling från Karlstad : Karlstad University Studies

    Författare :Agneta Jansson; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Starch; Polyvinyl alcohol; Water vapor barrier; Tensile properties; Rheology; Chemical Engineering; Kemiteknik;

    Sammanfattning : The interest for coatings containing renewable materials has enlarged in the last decade. Materials from the nature are investigated like starch, cellulose derivatives, protein (gelatin), chitosane by many. In this study potato starch has been used. LÄS MER

  5. 5. Ultrasonic Methods for Quantitative Carotid Plaque Characterization

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Erik Widman; KTH.; Karolinska Institutet.; Karolinska Institutet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicinsk teknologi; Medical Technology; Atherosclerosis; Cardiovascular Disease; Carotid Artery; Elasticity; ex vivo; in vivo; Phantom; Plaque; Polyvinyl Alcohol; Pulse Wave Imaging; Shear Wave Elastography; Speckle Tracking; Stroke; Ultrasound;

    Sammanfattning : Cardiovascular diseases are the leading causes of death worldwide and improved diagnostic methods are needed for early intervention and to select the most suitable treatment for patients. Currently, carotid artery plaque vulnerability is typically determined by visually assessing ultrasound B-mode images, which is influenced by user-subjectivity. LÄS MER