| Title |
The Surface Energy Change of TAC Film Treated by an Atmospheric Pressure Plasma |
| Authors |
Chang-Ho Lee ; Do-Young Jung ; Young-Jik Park ; Hyun-Jig Song ; Kwang-Sik Lee |
| Keywords |
Atmospheric Pressure Plasma ; Tri-Acetyl-Cellulose(TAC) ; Surface Energy ; Dielectric Barrier Discharge ; Hydrophilic |
| Abstract |
Tri-acetyl-cellulose(TAC) film surface was modified by atmospheric-pressure plasma technique to obtain the hydrophilic functional groups and improve the contact angle. TAC film was modified with Ｎ2 plasma ionized in dielectric barrier discharge(DBD) reactor under atmospheric pressure. We measured the change of the contact angle and the surface energy with respect to the plasma treatment conditions such as plasma treatment power, discharge gap and Ｎ2 gas flow rate. As the plasma treatment speed of 100[㎜/sec], the plasma treatment power of 1.5[㎾], discharge gap 2[㎜] and the Ｎ₂ gas flow rate 140[LPM], the best contact angle and the highest surface energy were obtained. The degree of hydrophilization depended strongly on the plasma-treating time and discharge power. |