판상형 무기소재인 Mica의 표면개질 및 차열페인트의 특성 평가

박정민; 김희정; 유중환; Jeong Min Park; Hee Jung Kim; Jung Whan Yoo

Applied Chemistry for Engineering, Vol.27, No.1, 35-38, February, 2016

DOI10.14478/ace.2015.1104 Export Citation

판상형 무기소재인 Mica의 표면개질 및 차열페인트의 특성 평가

Surface Modification of Flake-Shaped Inorganic Mica and Their Cool Paint Performances

박정민¹, 김희정^{1, 2}, 유중환^{1, †}

¹한국세라믹기술원 에코복합소재팀
²성균관대학교 신소재공학과

Jeong Min Park¹, Hee Jung Kim^{1, 2}, and Jung Whan Yoo^{1, †}

¹Eco Composite Materials Team, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Korea
²School of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 16419, Korea

E-mail:

초록

본 연구에서는 차열소재로 사용되는 mica의 소수성을 향상시키기 위해 실란커플링제인 octyltriethoxysilane (OTES)으로 개질하였다. 개질한 mica의 FT-IR spectrometer, 젖음성 및 수 접촉각 평가를 한 결과 OTES가 mica 표면에 화학적으로 잘 결합되어 있고, 소수성도 크게 향상된 것으로 평가된다. mica와 OTES/mica를 이용하여 제조한 차열페인트의 반사율은 각각 73.9% (mica) 및 86.4% (OTES/mica)로 OTES/mica의 경우가 12.5% 증가하였다. 차열성능평가 결과는 OTES로 개질한 페인트가 개질 전과 비교하여 약 7.2 ℃ 감소되어, 소수성 실란커플링제로 개질된 mica가 페인트의 차열성능을 향상시키는데 효과가 있음을 확인하였다.

In this study, the mica used as a thermal-insulation material was modified with a silane coupling agent, octyltriethoxysilane (OTES), to improve its hydrophobicity. The modified mica was characterized using FT-IR spectrometer, water wettability test, and water contact angle measurement. The analysis exhibits that OTES for the modified mica sample was well bonded chemically and drastically enhanced the hydrophobicity. The reflectance observed as 73.9% (mica) and 86.4% (OTES/mica), respectively, for OTES/mica was improved about 12.5% before any modifications. Also the modified mica sample showed 7.2 ℃ decrease in the thermal-insulation performance of cool paints compared to that of using unmodified mica, indicating that the modification of mica with silane coupling agents could be effective in enhancing the thermal-insulation performance of the cool paint.

Keywords:cool paint;energy efficiency;flake shaped material;silane coupling agent;surface modification

[References]

Chaiyosburana J, Rakwichiana W, Ketjoy N, Intanon P, Int. J. Renew. Energy, 3(1), 53 (2008)
Guo W, Qiao X, Huang Y, Fang M, Han X, Energy Build., 50, 196 (2012)
Synnefa A, Dandou A, Santamouris M, Tombrou M, Cool colored coatings for passive cooling of cities, International Workshop on Energy Performance and Environmental Quality of Buildings, July, Milos Island, Greece (2006).
Zhang ZT, Wang KT, Mo SH, Li XF, Cui XM, Energy Build., 87, 220 (2015)
Synnefa A, Karlessi T, Gaitani N, Santamouris M, Assimakopoulos DN, Papakatsikas C, Build. Environ., 46(1), 38 (2011)
Wan WC, Hien WN, Ping TP, Aloysius AZW, J. Heat Isl. Inst. Int., 7(2), 238 (2012)
Yoo JW, Lee SH, Jung OH, Lee HS, Park GC, Han JI, Thermo shield paint composition, Korean Patent, 10-1123151 (2012).
Ki DC, Thermally insulating and water-soluble paint composition and method of manufacturing coating layer using the same, Korean Patent, 10-1167108 (2012).
Fereshteh Z, Loghman-Estarki MR, Razavi RS, Taheran M, Mater. Sci. Semicond. Process, 16(2), 547 (2013)
Jeevanandam P, Mulukutla RS, Phillips M, Chaudhuri S, Erickson LE, Klabunde KJ, J. Phys. Chem. C, 111(5), 1912 (2007)
Park SG, Adiabatic coating paint, Korean Patent, 10-0440804 (2004).
Synnefa A, Santamouris M, Apostolakis K, Sol. Energy, 81(4), 488 (2007)
Uemoto KL, Sato NMN, John VM, Energy Build., 42(1), 17 (2010)

[1] Chaiyosburana J, Rakwichiana W, Ketjoy N, Intanon P, Int. J. Renew. Energy, 3(1), 53 (2008)

[2] Guo W, Qiao X, Huang Y, Fang M, Han X, Energy Build., 50, 196 (2012)

[3] Synnefa A, Dandou A, Santamouris M, Tombrou M, Cool colored coatings for passive cooling of cities, International Workshop on Energy Performance and Environmental Quality of Buildings, July, Milos Island, Greece (2006).

[4] Zhang ZT, Wang KT, Mo SH, Li XF, Cui XM, Energy Build., 87, 220 (2015)

[5] Synnefa A, Karlessi T, Gaitani N, Santamouris M, Assimakopoulos DN, Papakatsikas C, Build. Environ., 46(1), 38 (2011)

[6] Wan WC, Hien WN, Ping TP, Aloysius AZW, J. Heat Isl. Inst. Int., 7(2), 238 (2012)

[7] Yoo JW, Lee SH, Jung OH, Lee HS, Park GC, Han JI, Thermo shield paint composition, Korean Patent, 10-1123151 (2012).

[8] Ki DC, Thermally insulating and water-soluble paint composition and method of manufacturing coating layer using the same, Korean Patent, 10-1167108 (2012).

[9] Fereshteh Z, Loghman-Estarki MR, Razavi RS, Taheran M, Mater. Sci. Semicond. Process, 16(2), 547 (2013)

[10] Jeevanandam P, Mulukutla RS, Phillips M, Chaudhuri S, Erickson LE, Klabunde KJ, J. Phys. Chem. C, 111(5), 1912 (2007)

[11] Park SG, Adiabatic coating paint, Korean Patent, 10-0440804 (2004).

[12] Synnefa A, Santamouris M, Apostolakis K, Sol. Energy, 81(4), 488 (2007)

[13] Uemoto KL, Sato NMN, John VM, Energy Build., 42(1), 17 (2010)