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2001 / ȣ: V.13,no.6,Dec |
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The physical properties and the dyeability of the easily dyeable polyester yarn under atmospheric pressure |
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° (ѱ) ȯ (ѱ) Ż (() ) ӿ (ϴб а) Թ (̰ ؽŸϽý 迭) |
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° (ѱ) ȯ (ѱ) Ż (() ) ӿ (& |
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391 ~ 396 : 6 |
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The physical properties and the dyeability of the easily dyeable polyester yarn(EDY) were investigated and compared with those of regular polyester (REG-PET). The EDY, copolymerized with small amount of polyethylene glycol(PEG), showed higher intensity of aliphatic CH peak in IR spectrum, lower density and lower compactness than those of the REG-PET from the analysis of IR, density gradient column and XRD respectively. In the physical properties, the EDY has lowers , , specific stress and initial modulus, and also has higher strain than that of the REG-PET The EDY can be dyed under atmospheric pressure and its dyeing Fate was faster than REG-PET due to low , and this seems to be caused by the increased flexibility of Polymer chain in amorphous region of the EDY due to the copolymerization of PEG |
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