Dralon纤维阳离子染料染色动力学和热力学  

Adsorption kinetics and thermodynamics of cationic dyes on Dralon fiber

作　　者：周月红[1] 沈勇[1] 李勇 茅燕华 

机构地区：[1]上海工程技术大学服装学院,上海201620 [2]上海纺织(集团)有限公司技术中心,上海200336

出　　处：《印染》2014年第20期10-14,共5页China Dyeing and Finishing

基　　金：上海纺织(集团)有限公司技术开发费专项(2013-zx-03)

摘　　要：Dralon纤维系干法纺制的超细腈纶纤维,用阳离子染料Maxilon红GRL,Maxilon黄GL和Maxilon蓝GRL对Dralon纤维进行染色动力学和热力学研究。通过试验,绘制了上染速率曲线和吸附等温线并求出纤维的饱和吸附量;计算了扩散系数、平衡吸附量、染色速率常数和半染时间等动力学参数。结果表明,Maxilon三原色对Dralon纤维染色,其平衡吸附量、染色速率常数和扩散系数均随温度的提高而提高,而半染时间则随温度的上升而下降;Maxilon系列染料上染Dralon纤维的吸附等温线符合Langmuir型,属于定位吸附。The dyeing kinetics and thermodynamics of cationic Maxilon Red GRL, Maxilon Yellow GL and Maxilon Blue GL on Dralon fiber have been investigated. Curves of dyeing rate and adsorption iso- therms are proposed, and the kinetics parameters such as diffusion coefficient, equilibrium adsorption, dyeing rate constant and the half-dyeing time and the saturated adsorptive capacity of fiber are calculat- ed. The results show that, with the increase of temperature, the equilibrium adsorption, dyeing rate con- stant and diffusion coefficient of the trichromatic Maxilon dyes on Dralon fiber increase, and the half- dyeing time decreases. The dyeing behaviour of cationic Maxilon on Dralon fiber fits Langmuir-type ad- sorption curve in accordance with localized adsorption.

关 键 词：阳离子染料 染色 动力学 热力学 Dralon纤维 

分 类 号：TS193.637[轻工技术与工程—纺织化学与染整工程]