광색성 마이크로 캡슐과 에폭시 수지를 이용한 위장 코팅법

김영빈; 한웅찬; 허정현; 조계용; 채수종; 기세영; 김대석; Young Been Kim; Woong Chan Han; Jeonghyeon Heo; Kie Yong Cho; Sujong Chae; Seyoung Kee; Dae Seok Kim

Polymer(Korea), Vol.46, No.2, 288-294, March, 2022

DOI10.7317/pk.2022.46.2.288 Export Citation

광색성 마이크로 캡슐과 에폭시 수지를 이용한 위장 코팅법

Camouflage Coating Using Photochromic Microcapsules and Epoxy Resin

김영빈, 한웅찬, 허정현, 조계용¹, 채수종¹, 기세영, 김대석^†

부경대학교 고분자공학과
¹부경대학교 공업화학과

Young Been Kim, Woong Chan Han, Jeonghyeon Heo, Kie Yong Cho¹, Sujong Chae¹, Seyoung Kee, and Dae Seok Kim^†

Department of Polymer Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Korea
¹Department of Industrial Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Korea

E-mail:

초록

Diarylethene의 광 변색성을 이용하여, 가역적 위장표시 응용을 위한 간단하지만 매우 효과적인 코팅 방법을 제안한다. 여기서 사용한 광 변색성 잉크는 diarylethene을 포함하는 캡슐형 광 변색성 안료와 UV 경화형 에폭시 수지로 구성되어 있으며, 코팅 된 패턴은 자외선(UV) 빛에 반응하여 가역적으로 변색되는 특성을 안정적이고 신뢰 성 높게 보여주었다. 배경과의 위장특성을 위해, 코팅된 패턴의 투과율이 광 변색성 마이크로 캡슐의 농도에 따라 조사되었으며, 그 결과, 에폭시 수지의 마이크로 캡슐의 약 5 wt%가 위장특성에 가장 적합하다는 것을 확인하였다. 나아가, 패턴된 코팅의 기계적 안정성을 높이기 위해 acrylates 물질을 포함하는 얇은 보호층이 패턴에 추가로 코팅 되어 우수한 마모저항성을 나타냄을 확인하였다. 다양한 마스크 패턴과 바 코팅을 활용하여 목재, 유리, 일반 콘크 리트 벽체, 곡면 등 다양한 표면에 다양한 패턴을 성공적으로 코팅하였다. 이런 코팅법을 기반으로 암호화 quick response(QR) 패턴을 위한 위장 코팅 응용이 성공적으로 시연되었다.

Using photochromism of a diarylethene, we demontrate an easy but highly effective coating method for a camouflage application. The photochromic ink is consisting of capsule type of photochromic pigments and UV curable epoxy resin, reversibly presenting colored pattern in response to ultraviolet (UV) light. The transmittance of the coatings was investigated based on concentrations of the photochromic microcapsules, we have found that 5 wt% of the microcapsules in epoxy resin is most appropriate for camouflage with background. Besides, in order to increase mechanical stability of the coating, thin protective layer including acrylate chemicals is further coated on the patterns. By taking advantage of bar-coating with various mask pattern, different patterns were successfully coated on various types of surfaces such as wood, glass, general concrete wall and even curved surfaces. Based on the coating method, camouflage application for an encryption quick response (QR) pattern was successfully demonstrated.

Keywords:camouflage coating;photochromic pigment;epoxy resin;encrypt patterning

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[2] Cuthill IC, J. Zool, 308, 75 (2019)

[3] Qiao Y, Meng Z, Wang P, Yan D, Front. Mater., 8, 637664 (2021)

[4] Pardo R, Zayat M, Levy D, Chem. Soc. Rev., 40, 672 (2011)

[5] Zhu CF, Wu AB, Thermochim. Acta, 425, 7 (2005)

[6] Liu P, Solid State Ion., 165, 223 (2003)

[7] Mitani M, Ogata S, Yamane S, Yoshio M, Hasegawa M, Kato T, J. Mater. Chem. C, 4, 2752 (2016)

[8] Karshalev E, Kumar R, Jeerapan I, Castillo R, Campos I, Wang,J, Chem. Mater., 30, 1593 (2018)

[9] Michalis C, Scott-Samuel NE, Gibson DP, Cuthill IC, Proc. R. Soc. B., 284, 20170709 (2017)

[10] Kim SU, Lee YJ, Liu J, Kim DS, Wang H, Yang S, Nat. Mater., 21, 41 (2022)

[11] Barachevsky VA, J. Photochem. Photobiol. A-Chem., 354, 61 (2018)

[12] Nigel Corns S, Partington SM, Towns AD, Color. Technol.

[13] Younes B, Ward SC, Christie RM, J. Text. Inst., 111, 1246 (2020)

[14] Pietsch C, Schubert US, Hoogenboom R, Chem. Commun., 47, 8750 (2011)

[15] Wolfbeis OS, J. Mater. Chem., 15, 2657 (2005)

[16] Sun S, Gao Y, Han N, Zhang X, Li W, Energy, 219, 119630 (2021)

[17] Mukherjee S, Boudouris BW, Mol. Syst. Des. Eng., 2, 159 (2017)

[18] Kim TA, Beiermann BA, White SR, Sottos NR, ACS Macro Lett., 5, 1312 (2016)

[19] Cho YS, Huh YD, Electron. Mater. Lett., 11, 1102 (2015)

[20] Hu L, Lyu S, Fu F, Huang J, Bio Resources, 11, 9547 (2016)

[21] Zhou Y, Yan Y, Du Y, Chen J, Hou X, Meng J, Sens. Actuators B-Chem., 188, 502 (2013)

[22] Leelajariyakul S, Noguchi H, Kiatkamjornwong S, Prog. Org. Coat., 62, 145 (2008)

[23] Di Credico B, Griffini G, Levi M, Turri S, ACS Appl. Mater. Interfaces, 5, 6628 (2013)

[24] Zheng X, Wang Q, Li Y, Luan J, Wang N, Adv. Mater. Technol., 5, 1900832 (2020)

[25] Deng X, Mammen L, Butt HJ, Vollmer D, Science, 335, 67 (2012)

[26] Kim DS, Suh A, Yang S, Yoon DK, J. Colloid Interface Sci., 513, 585 (2018)

[27] Shin M, Lee Y, Kim J, Sim GW, Eom Y, Kim SU, Kim DS, Polym. Korea, 45, 934 (2021)

[28] Chung S, Im Y, Choi J, Jeong H, Microelectron. Eng., 75, 194 (2004)