Structural and physico-chemical properties change of polyethylene terephthalate (PET) fibers after supercritical fluid dyeing with C.I. disperse red 167

Jiyeon Oh,Sam Soo Kim,Kyoung Hou Kim,Jaewoong Lee,Chankyu Kang

The Journal of Supercritical Fluids（2021）

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摘要

•Physiochemical property changes of PET fibers after supercritical (SC) CO2 dyeing.•PET crystal orientation and crystal index of fibers increased by adding DR 167 dye.•After SC–CO2 dyeing, some PET fiber C‒C bonds break and new C=O and C‒O bonds form.•SC–CO2-treated PET with DR 167 dye increases fiber tensile strength.

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关键词

Polyethylene terephthalate,C.I. Disperse Red 167,Supercritical fluid,Tensile strength,Crystallinity,Orientation

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