Behavior of Intrinsic Viscosity and Moisture Content of Antistatic Polyethyleneterephthalate by Thermal Stabilizer

열안정제에 의한 제전성 폴리에틸렌테레프탈레이트의 고유점도 및 수분율의 거동 변화

  • Kim, Moon-Chan (School of Environmental Science & Technology, Chongju University) ;
  • Lee, Cheal-Gyu (School of Environmental Science & Technology, Chongju University)
  • 김문찬 (청주대학교 이공대학 환경학부) ;
  • 이철규 (청주대학교 이공대학 환경학부)
  • Received : 1999.03.20
  • Accepted : 1999.05.31
  • Published : 1999.08.10

Abstract

Moisture content and intrinsic viscosity of antistatic polyethyleneterephthalate(PET) depending on the thermal stabilizer content was studied. The terminal moisture content of antistatic PET was a function of drying temperature rather than drying time. Intrinsic viscosity drop of antistatic PET after melt spinning increased with increasing moisture content of it. After melt spinning, intrinsic viscosity of antistatic PET was decreased due to the thermal degradation of polyoxyalkyleneglycol(POAG) component of antistatic agent. Triphenylphosphate(TPP) was more effective as a thermal stabilizer than trimethylphosphate(TMP). A little intrinsic viscosity drop after melt spinning was found in PET containing 300 ppm of TPP as a thermal stabilizer.

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