Polyamide66/Polyphenylene 블렌드의 플라스마 표면처리를 통한 친수성 향상

지영연; 김상식; Young-Yeon Ji; Sang-Sik Kim

Polymer(Korea), Vol.30, No.5, 391-396, September, 2006

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Polyamide66/Polyphenylene 블렌드의 플라스마 표면처리를 통한 친수성 향상

Hydrophilicity Improvement of Polyamide66/Polyphenylene Blends by Plasma Surface Treatment

지영연^†, 김상식

고등기술연구원 플라스마기술센터

Young-Yeon Ji^†, and Sang-Sik Kim

Plasma team of plasma technology center, Institute for Advanced Engineering, 633-2, Goan-ri, Beagam-myeon, Cheoin-Gu, Yongin-si, Gyeonggi-do 449-863, Korea

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초록

플라스마 표면처리는 접착력, 친수성, 소수성 등과 같은 고분자의 표면 특성을 개질시키기 위하여 사용되고 있다. 플라스마를 이용하여 표면을 처리하게 되면 고분자의 전체적인 물성은 유지한 채 표면의 특성만을 변화시키는 장점을 가지고 있다. 본 연구에서는 다양한 가스를 사용한 플라스마를 이용하여 상업용 polyamide66(PA66) /polyphenylene(PPE) 고분자의 표면의 접착력 향상을 위해 표면 유기물 제거와 친수성으로 개질을 시도하였다. 플라스마 처리 공정 변수인 공정 파워, 처리 시간, 가스 종 들을 변화시키면서 표면을 개질하였으며 PA66/ PPE 고분자의 친수성 개질을 확인하기 위하여 접촉각 및 표면 자유에너지 변화를 측정하였다. 또한 유기물 제거를 FTIR 분석을 통하여 확인하였다. 플라스마를 이용한 표면처리 결과, 공정 파워 100 W, 처리 시간 2분, 아르곤/산소 공정가스에서 가장 낮은 접촉각(73도에서 14도)과 가장 높은 표면 자유에너지(44.20 mJ/m2에서 50.0 3 mJ/m2)를 나타내었다.

It has been reported that plasma treatments are used to modify surface properties of polymers such as adhesivity, hydrophobicity and hydrophilicity. Using plasma treatment, interfacial property can be introduced to a polymer surface without affecting the desired bulk properties of a material. In this study, commercial polyamide66 (PA66)/polyphenylene (PPE) polymer was modified by plasma treatment under a various gas specious for elimination of organic compound and polymer surface property with hydrophilicity. PA66/PPE polymer with hydrophilicity was treated by RF plasma vacuum system under a various parameter such as gas specious, processing time and partial pressure. Hydrophilicity of PA66/PPE was confirmed by calculation of the surface free energy from contact angle measurement. The highest surface free energy of 50.03 mJ/m2 with the lowest contact angle of 14 was obtained at plasma process power of 100 W, treatment time of 2 min and Ar/O2 gases of 100 and 200 sccm. Moreover the change of organic compounds on the polymer surface was analyzed by fourier transforms infrared spectrometry (FTIR).

Keywords:low pressure plasma;PA66/PPE blends;surface free energy;coating;hydrophilicity

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[2] Mandani M, Miron RR, Granata RD, J. Coat. Technol., 69, 45 (1997)

[3] Wang YQ, Mohite SS, Bridwell LB, J. Master. Res., 8, 388 (1993)

[4] Lee Y, Lee EH, Mansur LK, Surf. Coat. Technol., 51, 262 (1992)

[5] Tsuji H, Satoh H, Ikeda S, Ikemoto N, Gotoh Y, Ishikawa J, Surf. Coat. Technol., 103, 124 (1998)

[6] Abes M, Ersen O, Muller D, Acosta M, Ulhaq-Bouillet C, Mater. Sci. Eng. C-Biomimetic Supramol. Syst., 23, 229 (2003)

[7] Wang S, Harrell JW, J. Magn. Magn. Mater., 242, 437 (2002)

[8] Albrecht M, Anders S, Thomson T, Rettner CT, Bestetti ME, J. Appl. Phys., 91, 6845 (2002)

[9] Liakopoulos TM, Zhang W, Ahn CH, IEEE Trans. Magn., 32, 5154 (1996)

[10] Cho HJ, Ahn CH, IEEE Trans. Magn., 36, 686 (2000)

[11] Vakula VL, Pritykin LM, Polymer Adhesion : Physico-chemical Principles, Ellis Horwood Ltd, New York (1991)

[12] Cho DL, Polym. Sci. Technol., 6(5), 499 (1995)

[13] Tatoulian M, Arefi-Khonsari F, Shahid-zadeh-Ahmadi N, Amouroux J, Int. J. Adhes. Adhes., 15, 177 (1995)

[14] Adamson AW, Physical chemistry of surfaces, 5th ed., Wiley, New York, Chapter 10 (1990)

[15] Van Oss CJ, Interfacial Forces in Aqueous Media, Dekker, New York, p. 7 (1994)

[16] Van Oss CJ, Chaudhury MK, Good RJ, Adv. Colloid Interface Sci., 28, 35 (1987)

[17] Nguyen LT, Hasirci N, J. Mater. Sci.: Polym. Lett. Ed., 18, 541 (1980)

[18] Oiseth SK, Korzer A, Kasemo B, Lausmaa J, Appl. Surf. Sci., 202, 92 (2000)

[19] Hwang SN, Jeon BJ, Jung IH, J. Korean Ind. Eng. Chem., 9(3), 383 (1998)