Multi Acrylate기를 갖는 Polydimethylsiloxane 변성 Urea 코팅 액의 제조와 그 특성

박승우; 강호종; 강두환; Seung Woo Bak; Ho-Jong Kang; Doo Whan Kang

Polymer(Korea), Vol.38, No.6, 720-725, November, 2014

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Multi Acrylate기를 갖는 Polydimethylsiloxane 변성 Urea 코팅 액의 제조와 그 특성

Preparation and Properties of Polydimethylsiloxane Modified Urea with Multi Acrylate Group Coating Materials

박승우, 강호종 , 강두환 ^†

단국대학교 공과대학 고분자시스템공학과, 광 에너지 소재 연구센터

Seung Woo Bak, Ho-Jong Kang , and Doo Whan Kang^†

Center for Photofunctional Energy Materials, Department of Polymer Science and Engineering, Dankook University, Yongin 448-701, Korea

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초록

Hydride terminated polydimethylsiloxane과 allyl amine을 hydrosilylation 반응으로 aminopropylpolydimethylsiloxane을 합성하고, 이를 hexamethylenediisocyanate(HDI)의 고리화 반응으로 제조된 cyclic HDI trimer와 반응시켜 urea결합으로 결합된 polydimethylsiloxane 변성 urea을 제조하였다. Polydimethylsiloxane 변성 urea의 말단에 있는 isocyante기와 2-hydroxyethylmethacrylate를 반응시켜 말단에 multi acrylate기가 도입된 polydimethylsiloxane 변성 urea/acrylate(PUA)를 제조하였다. 제조한 화합물의 구조를 FTIR, 1H NMR로 확인하였으며, PUA에 아크릴계 단량체, 광 개시제, 용매 등을 여러 가지 조성비로 혼합하여 코팅 액을 제조하였으며 이를 PET 필름에 도포하고 UV을 조사하여 고경도의 유연성을 갖는 코팅 막을 제조하였다. 제조한 코팅 막의 연필 경도는 3H, 접촉각은 82°, bendability는 7 φ까지 scratch가 발생하지 않았다.

Aminopropyl terminated polydimethylsiloxane was synthesized by hydrosilylation reaction with hydride terminated polydimethlysiloxane and allyl amine. Polydimethylsiloxane modified urea with isocyanate group was prepared from cyclic trimer of hexamethyldiisocyanate with aminopropyl terminated polydimethylsiloxane. Polydimethylsiloxane modified urea/acrylate resin (PUA) was prepared from the urethane reaction of PU with isocyanate group and 2-hydroxyethylmethacrylate. PUA structure was analyzed by FTIR and NMR. Coating materials were prepared by mixing PUA, acrylic monomer, photo-initiator, and solvent and coated on PET film to obtain flexible hard coating film by UV irradiation.

Keywords:allyl amine;polydimethylsiloxane;UV curing;pencil hardness.

[References]

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Priola A, Gozzelino G, Ferrero F, Int. J. Adhesion Adhesives, 11, 255 (1991)
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Oliveira MCL, Antunes RA, Costa I, Int. J. Electrochem. Sci., 8, 4679 (2013)
Lee BC, Kang DW, Polymer, 28, 143 (2004)

[Related Articles]

[1] Kojima S, Polym. Eng. Sci., 33, 253 (1993)

[2] Decker C, Polym. Int., 45, 133 (1998)

[3] Priola A, Gozzelino G, Ferrero F, Int. J. Adhesion Adhesives, 11, 255 (1991)

[4] Tang C, Liu W, Ma S, Wang Z, Hu C, Prog. Org. Coat., 69, 359 (2010)

[5] Sepeur S, Kunze N, Werner B, Schmidt H, Thin Solid Films, 351(1-2), 216 (1999)

[6] Lee DJ, Choi JY, Kim HD, J. Korean Fiber Soc., 36, 798 (1999)

[7] Bluestein C, Polym. Plast. Tech. Eng., 17, 83 (1981)

[8] Crivello J, Bi D, J. Polym. Sci., Polym. Chem. Ed., 32, 683 (1994)

[9] Kuo PL, Chen KC, Wang TL, Polymer, 38(20), 5203 (1997)

[10] Oliveira MCL, Antunes RA, Costa I, Int. J. Electrochem. Sci., 8, 4679 (2013)

[11] Lee BC, Kang DW, Polymer, 28, 143 (2004)