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 년도별 목차보기 |
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| 발행년도/권호 |
2000 년 / 권호: V.12,no.6,Dec |
| 논문제목1(원어) |
중성염이 견의 반응염색에 미치는 영향(I) - 양이온의 영향- |
| 논문제목2(타언어) |
Effect of Neutral Salts on the Reactive Dyeing of Silk(I) -Effect of Cations- |
| 저자(원어) |
도성국 (동아대학교 생활과학대학 의상섬유학부) 박찬헌 (동아대학교 생활과학대학 의상섬유학부) 권지윤 (부산대학교 공과대학 섬유공학과) |
| 저자(타언어) |
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| 소속(원어) |
도성국 (동아대학교 생활과학대학 의상섬유학부) 박찬헌 (동아대학교 생활과학대학 의상섬유학부) 권지윤 ( |
| 소속(타언어) |
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| 시작/끝
페이지 |
372 ~ 379 총페이지 : 8 |
| 언어(원어) |
Korean |
| 초록 |
Four kinds of neutral salts with different cations, LiCl, NaCl, KCl, and CsCl, were added to the dye bath to accurately understand the effect of cations on the reactive dyeing of silk with C. I. Reactive Black 5. The cations of salts added lowered the negative surface potential of the silk, improving equilibrium adsorption and the accessibility of the dyestuff to the fiber greatly and speeding up the dyeing rate in the order of $Li^+>Na^+>K^+>Cs^+$. The activation energy for the dyeing was in the order of$Li^+>Na^+>K^+>Cs^+$ but the activation free energy, or the real energy barrier for the reaction, was in the order of $Li^+>Na^+>K^+>Cs^+$ because the degree of the contribution of E to the activation entropy was $Li^+>Na^+>K^+>Cs^+$. It was found from this result that LiCl had the strongest lowering effect on the negative surface potential of silk. The decrease in should be attributed to the loosely bonded activated complex of dyestufffs, cations and fiber molecules at transition state. It was clarified from the Bronsted equation that salts had the ionic strength effect and the specific salt effect on the reactive dyeing. |
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