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Title page for etd-0302104-164912


URN etd-0302104-164912 Statistics This thesis had been viewed 2099 times. Download 14 times.
Author Chun-Fu Liu
Author's Email Address chinfu.liu1205@msa.hinet.net
Department Materials Engineering
Year 2003 Semester 1
Degree Master Type of Document Master's Thesis
Language English Page Count 99
Title Effect of peroxides on the positive temperature coefficient behaviors of high density polyethylene/carbon black composites
Keyword
  • PTC
  • plasma
  • peroxide
  • NTC
  • HDPE
  • CB
  • CB
  • HDPE
  • NTC
  • peroxide
  • plasma
  • PTC
  • Abstract Abstract
    In this investigation, the effect of particle size of HDPE, carbon black content, plasma treatment, 60Co ?-ray irradiate dose, different initiators and content on the positive temperature coefficient(PTC) behavior and negative temperature coefficient(NTC) behavior of high density polyethylene/carbon black(HDPE/CB) composites were studied. On the other hand, the surface morphology observations and dynamic mechanical properties of HDPE/CB composite were also studied. The low temperature (T< 120°C) resistance of composites decreased with decreasing the size of PE and using plasma to treat polyethylene. The cross-linking density of composite could be increased by using plasma to treat PE. In comparison with the initiators, AIBN, BPO and DCP, DCP has a superior efficiency on restraint NTC effect occurred. In this investigation, the composition which possessed the 7.8 order of PTC intensity was PHDPE(40W,3min)/CB(35wt%)/DCP(2phr) without using 60Coγ-ray to irradiate. The NTC effect of composites could be eliminated by adding initiator, plasma treatment and 60Co ?-ray irradiation.
    Advisor Committee
  • Chi-Yuan Huang - advisor
  • Jen-Tant Yeh - co-chair
  • Ming-Lih Roan - co-chair
  • Wen-Yen Chiang - co-chair
  • Files indicate in-campus access only
    Date of Defense 2004-01-15 Date of Submission 2004-03-02


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