Title page for etd-0727113-174701


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URN etd-0727113-174701
Author Jie-Wei Chang
Author's Email Address No Public.
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Department Mechanical and Electro-Mechanical Engineering
Year 2013
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title The thermal conductivity and mechanical properties of Poly(p-phenylene sulfide) and graphene nano-composite by molecular dynamics simulation
Date of Defense 2013-07-12
Page Count 77
Keyword
  • Graphene
  • Non-equilibrium molecular dynamics
  • Thermal conductivity
  • Poly (p-phenylene sulfide)
  • Maxwell–Eucken model
  • Mechanical properties
  • Halpin-Tsai model
  • Abstract In this study, the nanocomposite of PPS/GF(GO) at the different weight fractions was investigated by molecular dynamics. The non-equilibrium molecular dynamics simulation (NEMD) is utilized to calculated the thermal conductivity for PPS/GF and PPS/GO nanocomposite materials. The results of non-equilibrium molecular dynamics simulation confirm that simulation results are in agreement with experimental result for the hot press condition. In addition, we also found the thermal conductivity of PPS/GO nanocomposite is better than PPS/GF nanocomposite. Finally, We can obtain thermal conductivity of PPS/GF nanocomposite material at different weight fraction by the Maxwell–Eucken equation. In this study, the mechanical property of nanocomposite material at different weight fractions are investigated, such as young's modulus and tension failure of material. The young's modulus results of PPS/GO nanocomposite is better than PPS/GF nanocomposite. The phenomena of broke for PPS/GF and PPS/GO are totally different. When PPS/GF nanocomposite materials begins to broke, we can find broke of surface of GF initially. PPS which do not locate near GO are broke first because GO enhance the PPS which are nearby. Finally, The young's modulus values predicted by the Halpin–Tsai model agree well with those by MD simulation approaches.
    Advisory Committee
  • Jeng-Han Wang - chair
  • Jian-Ming Lu - co-chair
  • Hsin-Tsung Chen - co-chair
  • Hui-Lung Chen - co-chair
  • Shin-Pon Ju - advisor
  • Files
  • etd-0727113-174701.pdf
  • Indicate in-campus at 0 year and off-campus access at 3 year.
    Date of Submission 2013-08-27

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