실리콘 변성 에폭시 언더코팅액 물성 연구

김진경; 황희남; 강두환; 강호종; Jin Kyung Kim; Hee Nam Hwang; Doo Whan Kang; Ho-Jong Kang

Polymer(Korea), Vol.38, No.3, 371-377, May, 2014

Export Citation

실리콘 변성 에폭시 언더코팅액 물성 연구

Physical Characteristics of Silicone Modified Epoxy as a Undercoating Materials

김진경, 황희남¹, 강두환 , 강호종 ^†

단국대학교 광 에너지 소재 연구센터, 고분자시스템공학과
¹아이컴포넌트

Jin Kyung Kim, Hee Nam Hwang¹, Doo Whan Kang , and Ho-Jong Kang^†

Center for Photofunctional Energy Materials, Dept. of Polymer Science and Engineering, Dankook University, 126 Jukjeon-dong, Sugi-ku, Yongin-si, Gyeonggi-do 448-160, Korea
¹I Component Corp., 390-2 Chupal-ri, Paengseong-eup, Pyeongtaek-si, Gyeonggi-do 451-805, Korea

E-mail:

초록

Polydimethylsiloxane(PDMS)을 이용한 실리콘 변성 에폭시(PDMSME) 언더코팅액의 변성 조건이 코팅 도막물성에 미치는 영향을 살펴보았다. 실리콘 변성 에폭시 언더코팅 도막은 에폭시 코팅 도막에 비하여 월등히 우수한 휨성을 가지며 경도는 PDMS에 결합된 실란 커플링제에 의해 개환된 에폭시 링의 개수와 밀접한 관계를 가짐을 알 수 있었다. PDMS에 결합된 개환된 에폭시 링의 개수가 증가함에 따라 대기 중의 수분과의 수가교에 의한 가교밀도 증가에 의하여 경도가 증가되며 사용된 PDMS의 탄성적 성질에 의하여 휨성 또한 우수해짐을 알 수 있었다. PDMS 분자량이 증가됨에 따라 코팅 도막의 경도는 낮아지는 반면 실리콘의 함량 증가에 따른 표면 접촉각이 증가됨을 알 수 있었다. 이와 함께 PDMS의 분자량이 증가됨에 따라 아세톤 용액에 의한 PDMSME 주사슬의 entanglement 감소에 의하여 코팅액의 점도가 감소되며 그 결과, 언더코팅 도막의 표면 거칠기가 감소됨을 알 수 있었다.

The effect of modification conditions on the physical properties of polydimethyl siloxane modified epoxy (PDMSME) was investigated. The number of ring opened epoxy attached to polydimethy lsiloxane (PDMS) by silane coupling agent affected the physical properties of undercoating materials. The flexibility of thin coating was enhanced by PDMSME and the increase of ring opened epoxy attached to PDMS resulted in the increase of hardness by the crosslinking in the present with moisture. The higher molecular weight of PDMS caused the lowering of hardness while the surface contact angle increased due to the high silicone content in PDMS. The viscosity of silicone modified epoxy coating materials decreased with increasing of molecular weight of PDMS due to the lowering of entanglement of PDMSME molecules by acetone solvent and consequently, the smooth undercoated surface was obtained.

Keywords:epoxy coating materials;polydimethylsiloxane;hardness;flexibility;surface contact angle.

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[Related Articles]

[1] Lee JH, Chu HY, Suh KS, Kang KY, ETRI, 20, 6 (2005)

[2] Sugimoto A, Ochi H, Fujimura S, Yoshida A, Miyadera T, Tsuchida M, IEEE, 10, 1 (2004)

[3] Porter RS, Wang LH, Polymer, 33, 2019 (1992)

[4] Andresen E, Zachmann G, Colloid Polym. Sci., 272, 1352 (1994)

[5] Suzuki M, Sato K, Umeda M, U.S. Patent, 5,837 (1998)

[6] Kim GH, Suh KS, ETRI, 21, 5 (2006)

[7] Hermans PH, Platzek P, Kolloid Z., 88, 68 (1939)

[8] Hermans PH, De Booys J, Kolloid Z., 88, 73 (1939)

[9] Hermans JJ, Hermans PH, Vermaas D, Weidinger A, J. Polym. Sci., 3, 1 (1947)

[10] Murakami S, Nishikawa Y, Tsuji M, Kawaguchi A, Kohjiya S, Cakmak M, Polymer, 36(2), 291 (1995)

[11] Cook JG, Huggill HPW, HPW, Lowe AR, British Patent, 604,73 (1948)

[12] Yano H, Sugiyama J, Nakagaito A, Nogi M, Matsuura T, Hikita M, Handa K, Adv. Mater., 17, 154 (2005)

[13] Kim JY, Han SI, Kim DK, Kim SH, Composite, Part A, 40, 45 (2009)

[14] Kim W, Kim YY, Son JS, Yun DS, Han C, Choi JK, Jo BW, Elastomer, 37, 244 (2002)

[15] Kim JH, Kim HS, Kang HJ, Polymer(Korea), 36, 6 (2012)

[16] Ito H, Oka W, Goto H, Umeda H, JJAP, 45, 4324 (2006)

[17] Back JH, Lee JH, Lee MK, Seo CC, Kwak ST, Moon JI, Mag. Sci. Tech., 12, 55 (2006)

[18] Kim JK, Master Thesis, Dankook University (2014)

[19] Kim KH, Master Thesis, Dankook University (2010)

[20] Kim JK, Kim ST, Choi CR, Noh SE, Lee MC, Polymer, 19, 65 (1995)

[21] Ramirez C, Torres MRA, Barral L, Lopez J, Montero B, J. Eur. Polym., 44, 3035 (2008)

[22] Dreiss CA, Cosgrove T, Benton NJ, Kilburn D, Alam MA, Schmidt RG, Gordon GV, Polymer, 48(15), 4419 (2007)

[23] Mrozek RA, Cole PJ, Otim KJ, Shull KR, Lenhart JL, Polymer, 52(15), 3422 (2011)

[24] Ahn JB, Cho BS, Yoo ES, Noh ST, Korean Chem. Eng. Res., 50(2), 292 (2012)