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首页> 外文期刊>Journal of Colloid and Interface Science >Electrokinetic and Thermodynamic Analysis of the Dyeing Process of Polyamide Fabric with Mordant Black 17
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Electrokinetic and Thermodynamic Analysis of the Dyeing Process of Polyamide Fabric with Mordant Black 17

机译：媒染黑17锦纶织物染色过程的电动和热力学分析

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摘要

An electrokinetic and thermodynamic analysis of the dyeing pro- cess of polyamide 6.6 (nylon 6.6) by the dye Palatine chrome black (PCB) is described in the present work. The electrokinetic study was performed by means of electrophoretic mobility measurements on bare and dyed fiber. The most significant result is the increase in electrokinetic potential, r. , toward more negative values as the dye concentration in the dispersion medium is raised. Given the molecular structure of PCB, which contains a sulfonate group per molecule, it is feasible that such increase in I r.1 is due to the adsorp- tion of the negatively charged, dissociated dye entities. The uptake of PCB by the fiber is experimentally determined at two tempera- tures: the strong increase in the amount of dye incorporated into the fiber as the initial concentration of PCB is larger, and also the fact that higher temperatures favor the dyeing process is an indication of the existence of strong interactions between both interfaces. From a different point of view, the efficient coverage of Nylon by PCB is also demonstrated by the changes experienced by the surface free energy of Nylon upon treatment with PCB.
机译：在本工作中描述了聚酰胺6.6（尼龙6.6）被染料帕拉丁铬黑（PCB）染色的过程的电动和热力学分析。通过在裸纤维和染色纤维上进行电泳迁移率测量来进行电动学研究。最重要的结果是电动势r的增加。随着分散介质中染料浓度的升高，向更大的负值方向移动。给定PCB的分子结构（每个分子包含一个磺酸盐基团），I r.1的这种增​​加是由于带负电荷的，离解的染料实体的吸附是可行的。纤维对PCB的吸收率是在两个温度下通过实验确定的：随着PCB初始浓度的增加，掺入纤维中的染料量会大大增加，而且较高的温度有利于染色过程是一个事实。表明两个接口之间存在强交互。从不同的角度来看，尼龙在PCB上的有效覆盖率也可以通过用PCB处理后尼龙表面自由能的变化来证明。

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