| 초록 |
The effect of surface oxyfluorination on the dyeability of low-density polyethylene (LDPE) film was studied in terms of surface functionality and surface energetics of the film surfaces. The growings of functional groups and surface free energy were confirmed by FTIR-ATR, XPS, and contact angle methods. As a result, the total surface free energy was increased with the oxyfluorination time, in the progressive increase of polar component together with a small decrease of dispersive component of surface free energy. From the dyeability test using Kubelka-Munk equation, it was found that the oxyfluorination treatment plays an important role in the growth of oxygen-containing functional groups of LDPE film, resulting in improving the dyeability with basic dyeing agent. A direct linear relationship is shown between the specific component of surface free energy and K/S value for this work, which could be attributed to the acid-base intermolecular interaction between the dyeing agent and the film studied. |
