纺织科学与工程学报2025，Vol.42Issue(5)：1-7,7.DOI:10.3969/j.issn.2096-5184.2025.05.001
温度对活性红R-2BF上染纸纱动力学和热力学影响
Effects of Temperature on Kinetics and Thermodynamics of Paper Yarn Dyed with Reactive Red R-2BF
摘要
Abstract
As an emerging textile material,paper yarn has broad application prospects due to its environmen-tal protection and excellent physical properties.In order to explore the dyeing mechanism of paper yarn dyed with reactive dyes,the dyeing kinetics and thermodynamic behavior of paper yarn dyed with reactive red R-2BF at different temperatures were studied by determining the dye uptake rate curve and adsorption isotherm.The experi-mental results showed that the dyeing kinetics model of reactive red R-2BF on paper yarn was in line with the quasi-second-order kinetic equation.At 40℃,60℃and 80℃,the diffusion coefficients of reactive red R-2BF on paper yarn were 5.969×10-11 m2·min-1,6.751×10-11 m2·min-1,and 8.395×10-11 m2·min-1,respec-tively,and the corresponding half-dyeing times were 23.4 min,21.2 min and 17.3 min,respectively.The results indicated that the increase of temperature was helpful to promote the diffusion of dye molecules on paper yarn and shorten the half-dyeing time.At the same time,the dyeing thermodynamic model of reactive red R-2BF on paper yarn met Freundlich adsorption isotherm.The increase of temperature was not conducive to the increase of dyeing equilibrium adsorption amount and did not change the adsorption type of reactive red R-2BF on paper yarn.关键词
纸纱/活性染料/染色动力学/染色热力学Key words
paper yarn/reactive dyes/dyeing kinetics/dyeing thermodynamics分类
轻工纺织引用本文复制引用
吴玲娅,王琰,徐楚琪,祝国成..温度对活性红R-2BF上染纸纱动力学和热力学影响[J].纺织科学与工程学报,2025,42(5):1-7,7.基金项目
高等学校学科创新引智计划项目(D21011) （D21011）
