SURFACE MODIFICATION OF POLYPROPYLENE IN AN IMPULSE COROAN DISCHARGE

Kim SW

Korean Journal of Chemical Engineering, Vol.13, No.1, 97-100, January, 1996

The impulse corona discharge was applied to modify surface of polypropylene films. The modified surface was analyzed by contact angle measurements and ESCA. The results were compared to those treated with AC corona discharge. The impulse corona treatment provided a similar contact angle and a similar[O]/[C] ratio on the polymer surface to those in AC corona treatment. On the other hand, [N]/[C] in impulse discharge was much lower than that in AC pulse discharge. The total power input in the impulse corona discharge, however, was lower than that in AC corona discharge to achieve a similar level of surface modification. It was also observed that the lower repetition frequency, the lower contact angle, and the higher[O]/[C].

[References]

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[1] Brewis DM, Briggs D, Polymer, 22, 7 (1981)

[2] Dinelli G, Civitano L, Rea M, "Industrial Experiments on Pulse Corona Simultaneous Removal of NO_x and SO_x from Flue Gas," Proc. IEEE-ISA Ann. Conf., 1620 (1988)

[3] Donohoe KG, Wydeven T, J. Appl. Polym. Sci., 23, 2591 (1979)

[4] Eliasson B, Simon FG, Egli W, Brunner P, Helv. Phys. Acta, 65, 129 (1992)

[5] Glasoe GN, Lebacoz JV, "Pulse Generators," Dover, NY (1949)

[6] Hill RD, Rahmin I, Rinker RG, Ind. Eng. Chem. Res., 27, 1264 (1988)

[7] Hollahan JR, Bell AT, "Techniques and Applications of Plasma Chemistry," 1st ed., John Wiley & Sons, New York, NY (1974)

[8] Masuda S, Nakao H, "Control of NO_x by Positive and Negative Pulse Corona Discharges," Proc. IEEE-IAS, Ann. Conf., 1173 (1986)

[9] Masuda S, Pure Appl. Chem., 60, 727 (1988)

[10] Milde HI, IEEE Trans. EI, EI17, 179 (1982)

[11] Mizuno A, Clements JS, Davis RH, IEEE Trans. Ind. Appl., IA22, 516 (1986)

[12] Moon JD, Castle GSP, Masuda S, "High Efficiency Ozone Generation Using a Helical Strip-Line Electrode and a Fast Rising pulse Voltage," Proc. IEEE-IAS Ann. Conf., 1205 (1986)

[13] Oda T, Takahashi T, Nakano H, Masuda S, "Decomposition of Fluorocarbon Gaseous Contaminants by Surface Discharge-Induced Plasma Chemical Processing," Proc. IEEE-IAS Ann. Conf., 734 (1991)

[14] Strobel M, Dunatov C, Strobel JM, Lyons CS, Perron SJ, Morgen MC, J. Adhes. Sci. Technol., 3, 321 (1989)

[15] Yamamoto H, Shioji S, Masuda S, IEEE Trans. IAS, 28, 1189 (1992)