Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10266604 | Dyes and Pigments | 2005 | 6 Pages |
Abstract
Dyeing properties of the easy dyeable polyester (EDP) and the polytrimethylene terephthalate (PTT) were investigated in terms of their thermodynamic and kinetic factors, such as standard affinity (âÎμ0), enthalpy change (ÎH0), entropy change (ÎS0), diffusion coefficient (DT) and activation energy of the diffusion (ED). The results were compared with corresponding properties of the PET (polyethylene terephthalate). The âÎμ0 of the EDP and the PTT showed a little higher value than that of the PET. PET displayed the highest negative values of the ÎH0 and the ÎS0, while PTT showed the lowest negative values of them. For all three polyester types, as the temperature increased, the DT increased. PTT had the highest DT at every temperature and PET showed the lowest values of the DT. The ED of the EDP and the PTT was lower than that of the PET.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Tae-Kyung Kim, Young-A. Son, Yong-Jin Lim,