Article
  • Isothermal Crystallization Behavior and Mechanical Properties of Poly(ethylene terephthalate) Filled with Carbon Black
  • Baek TM, Park CH, Chung KH
  • 카본블랙의 충전된 Poly(ethylene terephthalate)의 등온결정화 거동과 기계적 성질
  • 백태무, 박종훈, 정기현
Abstract
The bulk poly(ethylene terephthalate) (PET) and the filament PET samples filled with different amounts of carbon black and constant amounts of TiO2 were prepared in order to investigate the crystallization behavior. mechanical properties and thermal properties of PET. For the bulk sample, as carbon black content in PET increases, crystallinity, crystallization rate and glass transition temperature increased, whereas melting point temperature remained constant. The filament in melange yarn with higher concentration of carbon black showed higher glass transition temperature than those with lower concentration of carbon black. However, there were no change in melting point temperature and particularly in crystallinity, which might be attributed to the thunderbolt phenomenon. Increase of carbon black content in filament also resulted in increase of elongation and decrease of tenacity. apparent Young''s modulus, yield point stress and initial tensile load. Furthermore the variation of yarn toughness with carbon black content was also investigated.

일정량의 TiO2와 카본 블랙 충전량이 서로 다른 bulk poly(ethylene terephthalate) (PET) 시료와 filament PET 시료를 제조하여 PET의 결정화 거동, 기계적 성질 및 열역학적 성질을 연구하였다. Bulk 시료의 경우 카본 블랙 충전량이 증가함에 따라 결정화도, 결정화 속도 및 유리 전이온도는 상승하였으나 용융온도는 변동이 없었다 Filament 시료의 경우 melange 효과를 갖는 yarn을 제조할때, 카본블랙 충전량이 증가하면 유리전이 온도는 상승하였으나 용융온도, 특히 결정화도에는 차이가 없었는데, 이것은 바로 thunderbolt 현상에 기인하는 것이었다. 또한 filament 시료중 카본블랙함량이 증가함에 따라 신도는 증가한 반면, 강도, Young''s modulus, yield point sterss 및 initial tensile load는 감소하였다. 나아가서 카본블랙 충전량에 따른 섬유의 질김성도 조사되었다.

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1989; 13(2): 105-112

    Published online Feb 25, 1989

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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