Search for dissertations about: "melt spinning"

Showing result 1 - 5 of 13 swedish dissertations containing the words melt spinning.

  1. 1. Melt spun piezoelectric textile fibres an experimental study

    University dissertation from Chalmers University of Technology

    Author : Anja Lund; Högskolan i Borås.; Högskolan i Borås.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Textil och mode generell ; Textiles and Fashion General ; poly vinylidene fluoride ; PVDF; fibre; piezoelectric polymer; smart textile; melt spinning; crystal structure; X-ray diffraction of polymers; Smart textiles; Piezoelectricity; Fibres; Sensor; Textile; Smart textile; Yarn; piezoelectric;

    Abstract : Melt Spun Piezoelectric Textile Fibres - an Experimental Study ANJA LUND Department of Materials and Manufacturing Technology Chalmers University of Technology ABSTRACT The manufacturing and characterisation of piezoelectric textile fibres are described in this thesis. A piezoelectric material is one that generates an electric voltage when deformed, a property which exists in a number of materials. READ MORE

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

    University dissertation from Chalmers University of Technology

    Author : Anja Lund; Högskolan i Borås.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fibres; PVDF; Textilteknologi; piezoelectric polymer; poly vinylidene fluoride ; processing conditions; crystal structure; X-ray diffraction of polymers; fibre; melt spinning;

    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

  3. 3. Melt Spun Electro-Conductive Polymer Composite Fibers

    University dissertation from Chalmers University of Technology

    Author : Azadeh Soroudi; Högskolan i Borås.; [2011]
    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; composite; conductive fiber; carbon nanotubes;

    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. 4. Manufacturing and Characterisation of Conductive and Piezoelectric Textile Fibres

    University dissertation from Chalmers University of Technology

    Author : Erik Nilsson; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electrical conductivity; polyethylene; polypropylene; Graphite nanoplatelets; smart textiles.; melt spinning; piezoelectric fibres; rheology; conductive fibres; carbon black; graphene; PVDF;

    Abstract : This thesis explores the manufacturing and characterisation of melt spun electrically conductive polymer nanocomposites and piezoelectric textile fibres. Potential applications of these fibres are for example textiles with heating and sensor capabilities. READ MORE

  5. 5. On the production of polyethylene dielectrics and conductive polymer composite fibres

    University dissertation from Chalmers University of Technology

    Author : Martin Strååt; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polyethylene; carbon black; polypropylene; melt spinning; foaming; polystyrene; fibres; cables; carbon nanotubes; electrical properties;

    Abstract : Foamed cable insulations and conductive polymer composite fibres are two applications in polymer processing where the electrical properties of a material may be altered significantly during processing. Their common denominator is that the outcome depends to a large degree on the flow behaviour of the polymer melt, in particular the melt extensional properties. READ MORE