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 년도별 목차보기 |
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| 발행년도/권호 |
1998 년 / 권호: V.10,no.3,Jun |
| 논문제목1(원어) |
작용기의 종류에 따른 반응염색의 열역학 |
| 논문제목2(타언어) |
Thermodynamics of Reactive Dyes with Different Functional Groups |
| 저자(원어) |
도성국 (동아대학교 생활과학대학 의상섬유학부) |
| 저자(타언어) |
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| 소속(원어) |
도성국 (동아대학교 생활과학대학 의상섬유학부) |
| 소속(타언어) |
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| 시작/끝
페이지 |
36 ~ 42 총페이지 : 7 |
| 언어(원어) |
Korean |
| 초록 |
The dyeabilities of C.I. Reactive Blue 19(B19, MW ; 626), C.I. Reactive Blue 4(B4, MW ; 637) and C.I. Reactive Black 5(B5, MW : 991) were investigated. Initial dyeing rates were increased and the amount of dye on the fabric at equilibrium was decreased with temperature like other ordinary dyeing processes. Activation entropy was decreased because of loose bonding between dyestuffes and fiber molecules at transition state. It can be clarified that the entire reaction is exothermic and the number of molecular species at transition state becomes greater from decrease in activation enthalpy and the increase in activation free energy with temperature, respectively. The amount of B19 on the fabric at equilibrium was greater than that of B4, because B4 became unreactive towards textile substrates through hydrolysis. Due to the biggest size of the dye molecule, the reaction rate of B5 was the slowest but its difunctional group played an important role in achieving the greatest amount of dye on the fabric at equilibrium. |
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