Kinetics of Disperse Dyeing on Compounded PET (Polyethylene Terephthalate) Using Hyperbranched Polymeric Additive as a Nanomaterial

T his paper presents the influence of Hybrane H 1500 as a hyperbranched polymer on kinetic parameters of dyeing compounded fiber grade PET (polyethylene terephthalate) at boiling temperature. C.I. Disperse Red 324 was used as a disperse dye for dyeing compounded fiber grade PET. The result was compared with corresponding properties of unmodified PET. The dyeing rate constants and diffusion coefficients as the dyeing kinetic parameters were determined. The obtained results indicated that the rate of dyeing is closely related to the diffusive behavior of dye into the fiber. The dyeing rate of modified PET was faster than that of unmodified PET. It was also found that the modified PET containing 0.5% hyperbranched polymer as additive has higher diffusion coefficient as well as dyeing rate constant comparing to unmodified PET. Small angle x-ray scattering (SAXS) was used to characterize compounded PET. SAXS measurement used to determine size and shape. It showed there exist a homogeneous dispersion of hyperbranched polymer in compounded sample. Prog. Color Colorants Coat. 5(2012), 117-124. © Institute for Color Science and Technology.