환경 친화형 하이솔리드 아크릴수지의 합성과 아크릴 우레탄 도료의 경화 특성

김진욱; 이동찬; 최중소; Jin-Wook Kim; Dong-Chan Lee; Joong-So Choi

Korean Chemical Engineering Research, Vol.55, No.5, 586-592, October, 2017

DOI10.9713/kcer.2017.55.5.586 Export Citation

환경 친화형 하이솔리드 아크릴수지의 합성과 아크릴 우레탄 도료의 경화 특성

Synthesis of Eco-Friendly High Solid Acrylic Resins and Curing Properties of Acrylic Urethane Resin Coatings

김진욱, 이동찬, 최중소 ^†

광운대학교 화학공학과

Jin-Wook Kim, Dong-Chan Lee, and Joong-So Choi^†

Department of Chemical Engineering, Kwangwoon University, 20, Kwangwoon-ro, Nowon-gu, Seoul, 01897, Korea

E-mail:

초록

본 연구에서는 n-butyl acrylate (BA), methyl methacrylate (MMA), 2-hydroxypropyl methacrylate (HPMA) 및 acetoacetoxyethyl methacrylate(AAEM) 단량체를 부가 중합시켜 고형분이 75%인 아크릴수지를 합성하였다. 이때, 아크릴수지의 유리전이온도(Tg)를 20, 30, 40 oC로, 수산기가(OH value)를 60, 90, 120으로 변화시켰다. 그 결과, 아크릴수지의 점성도는 Tg와 수산기가가 증가할수록 증가하였다. 합성된 아크릴수지는 높은 가교밀도를 갖도록 설계되어 고탄력성과 고내구성을 유지하였다. 가교된 아크릴수지는 블록이소시아네이트(Desmodur BL-3175)와 경화 반응시켜 아크릴 우레탄 투명 도료를 제조하는데 사용되었다. 도료에 대하여 점성도, 접착성, 연필경도 및 60° 경면광택도 등의 측정을 통해 물리적 특성을 분석하였고, 아크릴 우레탄 투명 도료는 코일코팅용 상도 도료로서 적용되기 위하여 시편으로 제조되어 다양한 특성이 평가되었다. 제조된 도료는 접착력이 뛰어났고, 60° 경면광택도와 연필경도에서 우수한 특성을 나타내었으며, 환경 친화적이었다.

In this study, acrylic resins with solids content of 75% were prepared by addition polymerization of n-butyl acrylate (BA), methyl methacrylate (MMA), 2-hydroxypropyl methacrylate (HPMA) and acetoacetoxyethyl methacrylate (AAEM) monomers. At this time, the glass transition temperature (Tg) of the acrylic resin was changed to 20, 30 and 40 oC, and the hydroxyl value (OH value) was changed to 60, 90 and 120. As a result, the viscosity of acrylic resin increased with increasing Tg and hydroxyl (OH) value. The synthesized acrylic resin was designed to have a high crosslink density to maintain high elasticity and high durability. The crosslinked acrylic resin was used to prepare an acrylic urethane clear coating by curing reaction with a block isocyanate (Desmodur BL-3175). The physical properties of the clear paints were analyzed by measuring viscosity, adhesion, pencil hardness and 60° specular gloss. Acrylic urethane clear coatings were prepared as specimens and evaluated for various properties to be applied as top coatings for coil coating. The prepared coatings were excellent in adhesion, excellent in 60° specular gloss and pencil hardness, and eco-friendly.

Keywords:High solids;Addition polymerization;Acrylic resins;Acetoacetoxy group;Block polyisocyanate;Acrylic urethane clear coatings

[References]

Kim JY, Yoon SM, Park K, Yoon SK, Kil IS, Park HJ, Rhee YW, Korean Chem. Eng. Res., 48(6), 752 (2010)
Moon CJ, Lee JH, Korean Chem. Eng. Res., 41(5), 675 (2003)
Lee HJ, Jang SH, Chang SM, Kim JM, Korean Chem. Eng. Res., 48(5), 609 (2010)
Mahli DM, Steffenhagen MJ, Glass JE, J. Coat. Technol., 5(1), 33 (2008)
Thometzek P, Freudenberg U, Meier-Westhues U, Yonek K, J. Coat. Technol., 72(906), 75 (2000)
Zhang F, Zhu HL, Yang WF, Wu ZY, Qi HJ, He HB, Fan ZX, Shao JD, Appl. Surf. Sci., 254(10), 3045 (2008)
Roux M, Delome T, Laigle Y, Chave T, Vial F, Surf. Coat., Int., 90(8), 365 (2007)
Kim BS, Hong MG, Yoo BW, Lee MG, Lee WI, Song KC, Korean Chem. Eng. Res., 50(3), 410 (2012)
Fedrizzi L, Deflorian F, Boni G, Bonora P, Prog. Org. Coat., 29(1-4), 89 (1996)
Petit H, Henry N, Krebs A, Uytterhoven G, Jong F, Prog. Org. Coat., 43(1-3), 41 (2001)
Olsen JH, Surf. Coat. Int., 88(A8), 317 (2005)
Lange J, Hult A, Manson JA, ACS symposium series, 648, 200 (1996)
Rector FD, Blount WW, Leonard DR, J. Coat. Technol., 61(771), 31 (1989)
Carretti E, Dei L, Prog. Org. Coat., 49(3), 282 (2004)
Slinckx M, Henry N, Kerbs A, Uytterhoeven G, Prog. Org. Coat., 38(3), 163 (2000)
Diakoumakos CD, Qi X, Jones FN, Baghdachi J, J. Coat. Technol., 72(908), 61 (2000)
Kubo A, Toso Kogaku, 38(8), 284 (2003)
Kim DW, Hwang KH, Jung CH, Wu JP, Park HS, Polym. Korea, 24(4), 520 (2000)
Kim MJ, Min KB, Kim SH, Yoon JW, Kwak SJ, Lee JH, Oh SK, Proc. SPIE, 7135(2) (2008)
Oldering PKT, Hayward G, Resins for surface coatings, Volume II, SITA Technology, London(1987).
Pouchert CJ, Behnke J, The Aldrich Library of 13C and 1H FT-NMR Spectra, Aldrich Chemical, Milwaukee(1993).
Jung CH, Jo HJ, Shim IW, Park HS, Kim SJ, Kim SK, J. Korean Oil Chem. Soc., 23(2), 110 (2006)

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[2] Moon CJ, Lee JH, Korean Chem. Eng. Res., 41(5), 675 (2003)

[3] Lee HJ, Jang SH, Chang SM, Kim JM, Korean Chem. Eng. Res., 48(5), 609 (2010)

[4] Mahli DM, Steffenhagen MJ, Glass JE, J. Coat. Technol., 5(1), 33 (2008)

[5] Thometzek P, Freudenberg U, Meier-Westhues U, Yonek K, J. Coat. Technol., 72(906), 75 (2000)

[6] Zhang F, Zhu HL, Yang WF, Wu ZY, Qi HJ, He HB, Fan ZX, Shao JD, Appl. Surf. Sci., 254(10), 3045 (2008)

[7] Roux M, Delome T, Laigle Y, Chave T, Vial F, Surf. Coat., Int., 90(8), 365 (2007)

[8] Kim BS, Hong MG, Yoo BW, Lee MG, Lee WI, Song KC, Korean Chem. Eng. Res., 50(3), 410 (2012)

[9] Fedrizzi L, Deflorian F, Boni G, Bonora P, Prog. Org. Coat., 29(1-4), 89 (1996)

[10] Petit H, Henry N, Krebs A, Uytterhoven G, Jong F, Prog. Org. Coat., 43(1-3), 41 (2001)

[11] Olsen JH, Surf. Coat. Int., 88(A8), 317 (2005)

[12] Lange J, Hult A, Manson JA, ACS symposium series, 648, 200 (1996)

[13] Rector FD, Blount WW, Leonard DR, J. Coat. Technol., 61(771), 31 (1989)

[14] Carretti E, Dei L, Prog. Org. Coat., 49(3), 282 (2004)

[15] Slinckx M, Henry N, Kerbs A, Uytterhoeven G, Prog. Org. Coat., 38(3), 163 (2000)

[16] Diakoumakos CD, Qi X, Jones FN, Baghdachi J, J. Coat. Technol., 72(908), 61 (2000)

[17] Kubo A, Toso Kogaku, 38(8), 284 (2003)

[18] Kim DW, Hwang KH, Jung CH, Wu JP, Park HS, Polym. Korea, 24(4), 520 (2000)

[19] Kim MJ, Min KB, Kim SH, Yoon JW, Kwak SJ, Lee JH, Oh SK, Proc. SPIE, 7135(2) (2008)

[20] Oldering PKT, Hayward G, Resins for surface coatings, Volume II, SITA Technology, London(1987).

[21] Pouchert CJ, Behnke J, The Aldrich Library of 13C and 1H FT-NMR Spectra, Aldrich Chemical, Milwaukee(1993).

[22] Jung CH, Jo HJ, Shim IW, Park HS, Kim SJ, Kim SK, J. Korean Oil Chem. Soc., 23(2), 110 (2006)