rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Characterization of surfactant dispersed single wall nanotube - polystyrene matrix nanocomposite
  name:
    name part: Ayewah, Daniel Osagie, Oyinkuro.
    role:
      role term: creator
  name:
    name part: Lagoudas, Dimitris C.
    role:
      role term: thesis advisor.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2010
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: electronic
    form: remote
    extent: 1 online resource.
  abstract: Carbon nanotubes (CNT) are a new form of carbon with exceptional electrical and mechanical properties. This makes them attractive as inclusions in nanocomposite materials with the potential to provide improvements in electrical and mechanical properties and allows for the creation of a new range of multifunctional materials. In this study single wall carbon nanotubes (SWCNT) were dispersed in polystyrene using a solution mixing method, with the aid of a surfactant. A good dispersion was achieved and the resulting nanocomposites were characterized for electrical conductivity and mechanical properties by 3 point flexural and fracture toughness tests. Results show a significant improvement in electrical properties with electrical percolation occurring between 0.1 and 0.2 wt%. A minor improvement was observed in the flexural modulus but the strength and fracture toughness values in the nanocomposites decreased relative to the neat material. Scanning electron microscopy (SEM) was performed to characterize the morphology and fracture surface of the specimens. The results of testing and microscopy show that the presence of the nanotubes has an adverse effect on the crazing mechanism in Polystyrene (PS) resulting in a deterioration of the mechanical properties that depend on this mechanism.
  note: by Daniel Osagie Oyinkuro Ayewah.
  note: "Major Subject: Aerospace Engineering"
  note: Title from author supplied metadata (automated record created 2010-03-12 12:08:51).
  note: Electronic resource.
  note: Master of Science Texas A&M University 2007 http://hdl.handle.net/1969.1/ETD-TAMU-1397
  note: Includes bibliographical references.
  note: Text (Thesis)
  subject:
    topic: Major Aerospace Engineering
  subject:
    topic: Polystyrene
  subject:
    topic: Mechanical Properties
  subject:
    topic: Electrical Properties
  subject:
    topic: Single Wall Carbon Nanotube
  subject:
    topic: Crazing
  identifier: http://hdl.handle.net/1969.1/ETD-TAMU-1397
  record info:
    record content source: TXA
    record creation date: 100429
    record change date: 20151201150224.0
    record identifier: in00002595271