Low-temperature bleaching of cotton knitted fabrics using hydrogen peroxide in presence of copper complex catalysts

被引：0

作者：

Zhang F. ^{[1
]}

Zhang R. ^{[1
]}

Zhou W. ^{[1
]}

Zhou H. ^{[2
]}

Wang N. ^{[1
]}

机构：

[1] Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, Hunan Institute of Engineering, Xiangtan, 411104, Hunan

[2] Esquel Group, Gaoming, 528500, Guangdong

来源：

Fangzhi Xuebao/Journal of Textile Research | 2019年 / 40卷 / 08期

关键词：

Catalytic decomposition; Copper complex; Cotton knitted fabric; Hydrogen peroxide; Low-temperature bleaching;

D O I：

10.13475/j.fzxb.20180401208

中图分类号：

学科分类号：

摘要：

In order to overcome the shortcomings of high energy consumption and great damage on cotton knitted fabrics in the conventional high-temperature bleaching, copper complex CuM and CuN for the cotton fabric low-temperature bleaching process were prepared by reacting N,N'-bis(3-aminopropyl)ethylenediamine and tris(aminoethyl)amine with salicylaldehyde, respectively to produce Schiff base ligands M and N, and reacting with copper salt. The compounds were characterized by infrared spectrometer and nuclear magnetic resonance spectrometer. The influence of CuM and CuN on catalytic decomposition characteristics of hydrogen peroxide and the copper complex-hydrogen peroxide low temperature bleaching process factors on the fabric whiteness were studied. The comparison experiments between low-temperature and conventional bleaching processes were carried out. The order of H2O2 decomposition reaction is one and their kinetics of CuM and CuN are 0.055 and 0.042 min-1, respectively, much higher than that of the pristine. The whiteness of cotton fabrics bleached by CuN-H2O2 system is 80.0% comparable with the conventional process, and the former capillary and strength retention are superior to the later. Copyright No content may be reproduced or abridged without authorization.

引用

页码：101 / 108

页数：7

共 20 条

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