Search for dissertations about: "draw-ratio"

Showing result 1 - 5 of 6 swedish dissertations containing the word draw-ratio.

  2. 1. Melt Spun Electro-Conductive Polymer Composite Fibers

    Author : Azadeh Soroudi; Högskolan i Borås; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; conductive fibres; composites; blending; melt spinning; morphology; polyaniline; carbon nanotube; polypropylene; polyamide; draw-ratio; conductivity; Energi och material;

    Abstract : One interesting approach is the development of conductive polymer composite fibers for innovative textile applications such as in sensors, actuators and electrostatic discharge. In this study, conductive polymer composite fibers were prepared using several different blends containing conductive components: a conjugated polymer (polyaniline-complex) and/or carbon nanotubes. READ MORE

  4. 2. Fibre spinning from a thermotropic liquid crystalline polymer

    Author : Eivor Neikter; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high shear rate; low draw ratio; structural studies; melt spun fibres; hydroxybenzoic acid and hydroxynaphthoic acid; thermotropic liquid crystalline polymer; tensile properties;

    Abstract : .... READ MORE

  5. 3. Mechanical Properties of Liquid Crystal Polymer Fibres

    Author : Eivor Neikter; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; copolymer hydroxybenzoic acid; thermotropic liquid crystalline polymers; polyethylene terephthalate; mechanical properties; hydroxybenzoic acid;

    Abstract : Fibres of thermotropic liquid crystalline polymers (LCP) and its blends containing a random coil polymer LCP have been spun at low draw ratio at different temperatures and shear rates. Their mechanical properties have been studied in detail. READ MORE

  6. 4. Melt spinning of poly(vinylidene fluoride) mono- and bicomponent fibres and yarns : the formation of piezoelectric beta-phase crystallinity

    Author : Anja Lund; Högskolan i Borås; []
    Keywords : fibres; PVDF; Textilteknologi;

    Abstract : The present study investigates the possibilities of manufacturing piezoelectric polymer fibres or yarns for integration into textile materials. The polymers known to give the strongest piezoelectric effects are poly(vinylidene fluoride) (PVDF) and some of its copolymers. READ MORE

  7. 5. Processing of continuous fibers based on nanocellulose: Influence of dispersion and orientation on mechanical properties

    Author : Saleh Hooshmand; Stephen Eichhorn; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Trä och bionanokompositer; Wood and Bionanocomposites;

    Abstract : The aim of the work was to prepare continuous bio-based fibers where nano-sized cellulose was used to improve the mechanical properties. Two different strategies were used to reach this aim, melt-spinning of thermoplastic fibers reinforced with nanocellulose and dry-spinning of cellulose nanofibers without solvent or chemicals. READ MORE