Sökning: "Influence of base paper"

Visar resultat 1 - 5 av 74 avhandlingar innehållade orden Influence of base paper.

  1. 1. Influence of paper properties and polymer coatings on barrier properties of greaseproof paper

    Författare :Henrik Kjellgren; Gunnar Engström; Lars Järnström; Lennart Stolpe; Torbjörn Helle; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Greaseproof paper; Barrier properties; Gas barrier; Paper properties; Coatings; Chemical engineering; Kemiteknik; Chemical Engineering; Kemiteknik;

    Sammanfattning : Greaseproof paper has a dense structure and therefore provides a natural barrier against materials like fat and oils. The barrier is obtained by extensive refining of the pulp. LÄS MER

  3. 2. Barrier Properties of greaseproof paper

    Författare :Henrik Kjellgren; Gunnar Engström; Lennart Stolpe; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Greaseproof papers; Air permeance; Coatings; Chitosan; Oxygen Barrier properties; Chemical Engineering; Kemiteknik; Chemical engineering;

    Sammanfattning : The barrier properties of greaseproof paper are achieved by extensive beating of the fibres. This treatment results in high costs for energy, both as beating energy and drying energy. A full-scale trial has been performed to investigate the role of the pulp with respect to energy demand and the barrier properties of the final papers. LÄS MER

  4. 3. Fibre surface properties of kraft pulp : The influence of wood raw material, bleaching and storage

    Författare :Gerd Wäne; Ulf Germgård; Pedro Fardim; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Engineering; Kemiteknik;

    Sammanfattning : The aim of this thesis was to study the fibre surface properties of Birch (Betula ssp.), Eucalyptus (E. urograndis and E. globulus) and Spruce (Picea Abies) pulps bleached using two different methods: ECF (Elementary Chlorine Free) and TCF (Totally Chlorine Free). LÄS MER

  5. 4. Mobility of gold and other metals during alteration of the oceanic crust : Implications for the formation of VMS deposits

    Författare :Clifford G. C. Patten; Iain K. Pitcairn; Damon A. H. Teagle; Mark Hannington; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Geology; geologi;

    Sammanfattning : Tremendous physical and chemical exchanges occur along oceanic ridges between the lithosphere, the hydrosphere and the biosphere. During these exchanges important mobilisation of metals by hydrothermal fluid circulation takes place within the oceanic crust. LÄS MER

  7. 5. Modelling of the cyclic behaviour of superalloys

    Författare :Rebecka Brommesson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; FEM; kinematic hardening; Cyclic plasticity; TMF; superalloy;

    Sammanfattning : In the aviation industry today there is a trend of increasing operating temperatures in turbine engines. The advantages with higher temperatures in the engines are improved performance and efficiency. LÄS MER