芦荟纤维和脱脂棉用直接染料染色的热力学性能  

Thermodynamics Properties of Aloe Fiber and Absorbent Cotton Using Direct Dyes

作　　者：张峰 周青青[2] 林洪芹[2] 吕景春[2] 

机构地区：[1]张家港市出入境检验检疫局,江苏张家港215600 [2]盐城工学院,江苏盐城224051

出　　处：《纺织科技进展》2013年第6期12-16,共5页Progress in Textile Science & Technology

摘　　要：研究了C.I.直接耐晒红81及C.I.直接混纺蓝70对芦荟及脱脂棉纤维素纤维染色的热力学性能。绘制了两种染料的标准工作曲线和两种纤维不同温度下的吸附等温线,比较了Freundlich、Langmuir、Redlich-Peterson三种吸附模型对实验数据的模拟结果,探讨了染色温度对三种吸附模型热力学参数的影响。结果表明两种染料的标准曲线方程符合朗伯-比耳定律,吸光度值与染料质量浓度成正比;在同一温度下芦荟纤维的染料吸附量要比棉纤维的染料吸附量大,芦荟纤维的染色性能也优于棉纤维;C.I.直接耐晒红81和C.I.直接混纺蓝70在芦荟纤维及脱脂棉纤维上的吸附情况最适合用Redlich-Peterson吸附模型来描述。The thermodynamics property of aloe fiber and absorbent cotton dyeing using direct fast red 81 and direct blending blue 70 were researched. The standard curve equation of two dyes was drawed and the adsorption isotherm of diverse temperature was studied. Freundlich, Langmuir and Redlich-peterson adsorption isotherm models were used to fit the experimental isotherm curves. The influences of temperature on the constants of three isotherm equations were discussed. The results showed that the standard curve equation of two dyes met the Lambert-beer＇s law and the absorbance was proportional to dye, The dye adsorption quantity of aloe fiber was greater than absorbent cotton at the same temperature, and aloe dyeing performance was better than that of cotton fiber. Redlich-peterson adsorption isotherm models best fitted the absorption of direct fast red 81 and direct blending blue 70 on aloe and absorbent cotton fiber.

关 键 词：芦荟纤维 直接染料 吸附等温线 热力学性能 

分 类 号：TS193.631[轻工技术与工程—纺织化学与染整工程]