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 년도별 목차보기 |
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| 발행년도/권호 |
2000 년 / 권호: V.12,no.1,Feb |
| 논문제목1(원어) |
유기용매염색(III) -Alkane류를 염색매체로 한 PET의 염색에 있어서 열역학적 파라미터에 의한 염착거동 해석- |
| 논문제목2(타언어) |
Organic Solvent Dyeing(III) -The Interpretation of Dyeing Behavior by Thermodynamic Parameters on Dyeing of Polyester Fiber in Alkanes as Dyeing Media- |
| 저자(원어) |
김태경 (경북대학교 공과대학 염색공학과) 임용진 (경북대학교 공과대학 염색공학과) 조광호 (삼일염직(주) 연구소) 조규민 (영남이공대학 텍스타일시스템계열) |
| 저자(타언어) |
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| 소속(원어) |
김태경 (경북대학교 공과대학 염색공학과) 임용진 (경북대학교 공과대학 염색공학과) 조광호 (삼일염직(주) |
| 소속(타언어) |
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| 시작/끝
페이지 |
52 ~ 60 총페이지 : 9 |
| 언어(원어) |
Korean |
| 초록 |
In the prior studies, we reported that the dye uptakes of C. I. Disperse Violet 1 on polyester fiber in hexane and cyclohexane were higher than those in the other solvents, as the number of carbon atoms of alkanes decreased, the dye uptake increased, and the logarithmic plot of the dye uptakes vs. the solubilities of the dye showed that the dye uptakes are inversely proportional to the solubilities. In this study, for Interpretation of dyeing behavior of C. I. Disperse Violet 1 on polyester in alkanes, the thremodynamic parameters of dyeing, such as standard affnity, heat of dyeing(enthalpy change), entropy change, diffusion coefficient, and activation energy of diffusion, were obtained from isotherms and dyeing rates at different temperature. As the number of carbon atoms of alkanes increased, the standard affinity decreased, but the heat of dyeing(enthalpy change) and the entropy change showed larger negative values. These results mean that as the number of carbon atoms of alkanes increases, the dye uptake decreases, but both the fraction of the dye molecules dyed at relatively highly aligned or compact region of polyester fiber and the regularity of dye aggregates in the fiber become increased. As the number of carbon atoms of alkanes increased, the diffusion coefficient decreased, but the activation energy of diffusion increased. In the alkane of larger number of carbon atoms, because the solubility of the dye is higher, the desorption rate of the dye is faster and the diffusion coefficient is smaller than those in the smaller alkanes. But the energy required to separate the dye molecules from the alkane molecules is much higher because the interaction between the alkane molecule and the dye molecule become strong with the number of carbon atoms. |
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