• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Dyeing kinetics of methacrylic acid grafted polyester fabric with astrazonrot violet and rhodamine red basic dyes
【24h】

Dyeing kinetics of methacrylic acid grafted polyester fabric with astrazonrot violet and rhodamine red basic dyes

机译：甲基丙烯酸接枝紫罗兰色和若丹明红碱性染料的甲基丙烯酸接枝聚酯织物的染色动力学

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The low-temperature dyeing kinetics of radiation-grafted poly(ethylene terephthalate) fabric were studied. The effects of the graft yield (GY), dye concentration, and dyeing temperature on the color difference (CD) of methacrylic acid grafted polyester fabric were studied for astrazonrot violet (AV) and rhodamine red (RR) basic dyes. CD increased sharply with an increase in GY and tended to level off at higher degrees of grafting. The best dyeing conditions were achieved for both dyes at pH 11.5. CD of the grafted fabric increased rapidly as the dyeing time increased; this was followed by a relatively slow dyeing rate within a few minutes, which depended on the concentration and temperature of the dye bath. The initial dyeing rates and rate constants for the AV dye were higher than those for the RR dye. The dyeing process followed 0.14-order kinetics and was independent of the dyeing temperature or the type of dye. The dyeing rates and rate constants increased with an increase in the dyeing temperature. An Arrhenius-type plot of the natural logarithm of the dyeing rate constant versus the inverse of the absolute temperature yielded apparent activation energies of 4.9 and 13.8 kJ/mol and pre-exponential rate constants of 9.4 and 100.6 (CD/GY)s(-1) for the AV and RR dyes, respectively. The mechanism of the dyeing process for the two dyes was diffusion-controlled, and their dyeing rates depended on the type of basic dye. (C) 2004 Wiley Periodicals, Inc.
机译：研究了辐射接枝聚对苯二甲酸乙二酯织物的低温染色动力学。研究了黄芪紫罗兰（AV）和若丹明红（RR）碱性染料的接枝率（GY），染料浓度和染色温度对甲基丙烯酸接枝聚酯织物色差（CD）的影响。 CD随着GY的增加而急剧增加，并且在较高的接枝度下趋于稳定。在pH 11.5下，两种染料均达到了最佳的染色条件。接枝织物的CD随染色时间的增加而迅速增加。然后是几分钟内相对较慢的染色速度，这取决于染浴的浓度和温度。 AV染料的初始染色速率和速率常数高于RR染料。染色过程遵循0.14阶动力学，并且与染色温度或染料类型无关。染色速率和速率常数随着染色温度的升高而增加。染色速率常数与绝对温度的倒数的自然对数的Arrhenius型图产生的表观活化能分别为4.9和13.8 kJ / mol，指数前速率常数为9.4和100.6（CD / GY）s（- 1）分别用于AV和RR染料。两种染料的染色过程均受扩散控制，其染色速率取决于碱性染料的类型。 （C）2004年Wiley Periodicals，Inc.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号