한국염색가공학회지 (Textile Coloration and Finishing)

  • 제14권1호
  • /
  • Pages.51-57
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  • 2002
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  • 1229-0033(pISSN)
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  • 2234-036X(eISSN)
한국염색가공학회 (The Korean Society of Dyers and Finishers)
권호 표지

열역학적 파라미터에 의한 상압가염형 폴리에스테르 섬유의 염색거동 해석

The Interpratation of Dyeing Behavior of the Easily Dyeable Polyester Yarn under Atmospheric Pressure by Thermodynamic Parameters

  • 김태경 ((주)새한 섬유가공연구소) ;
  • 윤석한 ((주)새한 섬유가공연구소) ;
  • 신상엽 ((주)새한 섬유가공연구소) ;
  • 임용진 (경북대학교 공과대학 염색공학과) ;
  • 조규민 (영남이공대학 텍스타일시스템 계열)
  • 발행 : 2002.02.01
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초록

In the prior study, the mechanical properties and the dyeability of the easily dyeable polyester grim(EDY) were investigated. In this study, to interpret the dyeing behavior of EDY with C. I. Disperse Violet 1, the thermodynamic parameters of dyeing, such as the standard affinity, the heat of dyeing(the enthalpy change), the entropy change, the diffusion coefficient, and the activation energy of diffusion, were obtained from adsorption isotherms and dyeing rate at various temperatures and compared to these of regular polyester (REG-PET). The heat of dyeing(the enthalpy change) and the entropy change for EDY showed smaller negative values than those for REG-PET. This means that the dye molecules in the EDY are combined more loosely than in the REG-PET and that is due to the flexibility of polymer chains of EDY. The diffusion coefficients of C. I. Disperse Violet 1 into the EDY were larger than those for REG-PET, and the activation energy of diffusion on EDY was smaller than that on REG-PET.

키워드

참고문헌

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