Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Solubility and Esterification Kinetics of Terephthalic Acid in Ethylene Glycol(II)- Effect of TPA Particle Size and Dissolution Mechanism -

에틸렌글리콜과 테레프탈산의 용해도 및 에스테르화 속도(II)-TPA 입자크기의 영향과 용해 기구-

  • 최창남 (전남대학교 섬유공학과) ;
  • 양갑승 (전남대학교 섬유공학과, 한국섬유기술연구소, 전남대학교 섬유공학과, 한국과학기술원 고분자재료 연구실)
  • Published : 1994.07.01

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Abstract

In the esterification step of PET formation, we Investigated the effect of TPA particle sizes on the solubility and reactivity of TPA in EG to illuminate the mechanism of dissolution. The solubility was estimated by clear time and turbidity. The reactivity of TPA was determined by acid and saponification values. As the particle size of TPA decreased, both enhanced reactivity and solubility were introduced. The results suggest that small portion of TPA in EC is dissolved %rst the proton farmed in EG plays the role of an acid catalyst, then, the ester formed accelerates the dissolution and esterification of TPA.

Keywords

References

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