DUAL SORPTION AND DIFFUSION OF ACID DYES IN NYLON
DUAL SORPTION AND DIFFUSION OF ACID DYES IN NYLON
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酸性染料在尼龙中的双重吸附和扩散
DOI：
10.2115/fiber.35.11_t486
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
T. Iijima
中科院分区：
文献类型：
--
作者：
T. Tak;J. Komiyama;T. Iijima
本文用双吸附扩散模型讨论了单磺酸、双磺酸和三磺酸染料在50℃、盐酸调节pH值为2.2的无限染浴中在尼龙6中的吸附和扩散。这些染料是橙色II(C.I.酸性橙7，染料I)、日落黄(C.I.食品黄3，染料II)和由对苯磺酸和R酸制备的三磺酸染料(染料III)。随着磺酸基的引入，分配系数Kp减小，朗缪尔型吸附常数KL增大。吸附物种的扩散系数(L)在决定表观扩散系数的浓度依赖性中起主要作用。
The sorption and diffusion of mono-, di- and trisulfonic acid dye in Nylon 6 from their infinite dyebaths at 50°C and pH2.2 adjusted with hydrochloric acid have been discussed in the light of the dual sorption and diffusion model. The dyes are Orange II (C. I. Acid Orange 7, Dye I), Sunset Yellow (C. I. Food Yellow 3, Dye II) and a trisulfonic acid dye (Dye III) prepared from sulfanilic acid and R acid. Partition coefficient, Kp decreased, while Langmuir type sorption constant, KL increased, with the introduction of sulfonic acid group into these dyes. The diffusivity of the adsorbed species (L) is found to be of primary importance in determining the concentration dependence of the apparent diffusion coefficient.