Supercritical CO2 dyeing of ramie fiber with disperse dye

文献类型: 外文期刊

第一作者: Liu, Zhao-Tie

作者: Liu, Zhao-Tie;Zhang, Lili;Liu, Zhongwen;Gao, Ziwei;Dong, Wensheng;Xiong, Heping;Peng, Yuande;Tang, Shouwei

作者机构:

关键词: HIGH-PRESSURE SOLUBILITY;WAVELET NEURAL-NETWORK;CARBON-DIOXIDE;POLY(ETHYLENE-TEREPHTHALATE) FIBERS;ANTHRAQUINONE DYES;NATURAL FIBERS;COTTON FIBERS;AZO DYES;MPA;PREDICTION

期刊名称:INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH ( 影响因子:3.72; 五年影响因子:3.99 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: Dyeing of ramie fiber with C.I. disperse red 74 (DR74) at the temperatures from 343.15 to 403.15 K and under the pressures of 12-20 MPa has been thoroughly investigated using supercritical carbon dioxide (scCO(2)) as a solvent. Ramie fiber was first treated with alkali and then with benzoyl chloride to improve the affinity and interaction between disperse dye and ramie fiber. The morphological and structure transformations in fiber induced by pretreatment were determined by a Fourier transform infrared spectrometer (FT-IR), X-ray diffraction (XRD), scanning electro-microscopy (SEM), differential scanning calorimetry (DSC), and thermogravimetry analysis (TGA). The modification of ramie fiber with benzoyl chloride was characterized by a degree of substitution (DS). The damage to ramie fiber caused by pretreatment and scCO(2) dyeing was determined by stress-strain measurements. The color strength of the fiber was evaluated by K/S measurements. The dyeing effects have been studied by means of time, pressure, temperature, and concentration of dye.

分类号: TQ

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