Sökning: "melt spinning"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden melt spinning.

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

    Detta är en avhandling från Chalmers University of Technology

    Författare :Anja Lund; Högskolan i Borås.; Högskolan i Borås.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2013]
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

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

    Detta är en avhandling från Chalmers University of Technology

    Författare :Azadeh Soroudi; Högskolan i Borås.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2011]
    Nyckelord :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; Kemiteknik; Chemical engineering; conductive fiber; composite; carbon nanotubes;

    Sammanfattning : 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. LÄS MER

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

    Detta är en avhandling från Chalmers University of Technology

    Författare :Anja Lund; Högskolan i Borås.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fibres; PVDF; Textilteknologi; Funktionella material; Functional materials; Övrig teknisk materialvetenskap; Other materials science; poly vinylidene fluoride ; fibre; melt spinning; processing conditions; crystal structure; X-ray diffraction of polymers; piezoelectric polymer;

    Sammanfattning : 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. LÄS MER

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

    Detta är en avhandling från Chalmers University of Technology

    Författare :Erik Nilsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Graphite nanoplatelets; graphene; carbon black; polypropylene; polyethylene; electrical conductivity; rheology; PVDF; piezoelectric fibres; melt spinning; conductive fibres; smart textiles.;

    Sammanfattning : 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. LÄS MER

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

    Detta är en avhandling från Chalmers University of Technology

    Författare :Martin Strååt; Chalmers tekniska högskola.; Chalmers University of Technology.; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Funktionella material; Functional materials; electrical properties; polyethylene; polypropylene; polystyrene; melt spinning; foaming; carbon black; carbon nanotubes; fibres; cables;

    Sammanfattning : 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. LÄS MER