Abstract:
Dyeing of PET materials by traditional methods presents several problems. Plasma
technology has received enormous attention as a solution for the environmental problems related
with textile surface modiflcations, and there has been a rapid development and commercialization of plasma technology over the past decade. In this work, the synergistic efiect of atmospheric
pressure plasma on alkaline etching and deep coloring of dyeing properties on polyethylene terephthalate (PET) fabrics and fllms was investigated. The topographical changes of the PET surface
were investigated by atomic force microscopy (AFM) images, which revealed a smooth surface morphology of the untreated sample whereas a high surface roughness for the plasma and/or alkaline
treated samples. The efiects of atmospheric pressure plasma on alkaline etching of the structure
and properties of PET were investigated by means of difierential scanning calorimetry (DSC), the
main objective of performing DSC was to investigate the efiect of the plasma pre-treatment on
the T
g and Tm. Using a tensile strength tester YG065H and following a standard procedure the
maximum force and elongation at maximum force of PET materials was investigated. Oxygen
and argon plasma pre-treatment was found to increase the PET fabric weight loss rate. The color
strength of PET fabrics was increased by various plasma pre-treatment times. The penetration
of plasma and alkaline reactive species deep into the PET structure results in better dyeability
and leaves a signiflcant efiect on the K/S values of the plasma pre-treated PET. It indicated that
plasma pre-treatment has a great synergistic efiect with the alkaline treatment of PET.
Description:
Plasma Science and Technology, Vol.18, No.4, Apr. 2016
