| 초록 |
The oxygen plasma treatment was carried out to introduce oxygen-containing functional groups onto low density polyethylene (LDPE) film, which can be attributed to improving of dyeability. The surface properties of the LDPE film were determined by SEM, XPS, and contact angle measurements. The intensity of functional groups formed by plasma treatment, such as hydroxyl and carbonyl groups, was measured using FTIR-ATR. The color strengths of dyed LDPE film were measured using a colorimeter. The reflectance measurements expressed as K/S value were determined by applying the Kubelka-Munk equation. As a result, the total surface free energy was increased with plasma treatment time, in the progressive increase of polar component together with a small increase of dispersive component of surface free energy. From the dyeability tests, it was found that the plasam 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. |
