알키드/폴리카프로락톤/폴리에스테르 폴리올의 조성을 가진 2성분계 폴리우레탄 도료의 합성과 물성에 관한 연구

고재용; 서금종; 권순용; 우종표; 박홍수

Polymer(Korea), Vol.22, No.5, 756-764, September, 1998

Syntheses and Physical Properties of Two-Component Polyurethane Coatings Containing Alkyd/Polycaprolactone/Polyester Polyol

고재용, 서금종, 권순용, 우종표, 박홍수

초록

알키드 폴리올과 폴리카프로락톤 폴리올 성분으로 3,5,5-trimethylhexanoic acid와 폴리카프로락톤을 각각 택하여 변성폴리에스테르에 도입함으로써 알키드/폴리카프로락톤 변성폴리에스테르(THAS)를 합성하였다. 합성된 THAS에 폴리이소시아네이트, 안료, 습윤·분산제 및 플로우개량제 들을 블렌드하여 2성분계 폴리우레탄 도료를 제조하였다. 제조된 도료를 시료로 택하여 도막처리를 한 다음 각종 물성시험을 거친 결과, 변성폴리에스테르에 알키드 폴리올과 폴리카프로락톤 폴리올의 도입으로 인하여 변성폴리에스테르 성분의 기존 도료와 비교하여 가사시간, 굴곡성, 내충격성, 접착성, 연화도, 방청성, 내마모성, 황변도 및 명도지수차 등이 양호하게 나타났고, 건조시간은 다소 저하되었으며, 나머지 물성들은 기존 도료와 거의 비슷하게 나타났다.

Alkyd/polycaprolactone modified polyester (THAS) was synthesized by introducing 3,5,5-trimethylhexanoic acid and polycaprolactone chosen as the component of alkyd and polycaprolactone polyol into modified polyester. Two-component polyurethane coatings were prepared by blending polyisocyanate, pigment, wetting/dispersing agent, and flowing agent into the synthesized THAS. The film was coated with the prepared coatings, and various properties were examined. They showed good physical properties such as pot-life, flexibility, impact resistance, cross hatch adhesion, fineness of grind, rust resistance, abrasion resistance, yellowness index, and lightness index difference. Drying time was a little decreased, and the rest of properties were comparable to existing coatings.

Keywords:two-component;polyurethane coatings;alkyd/polycaprolactone modified polyester

[References]

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Robinson GN, Alderman JF, Johnson TL, J. Coat. Technol., 65, 51 (1993)
Bauer DR, Gerlock JL, Mielewski DF, Paputa Peck MC, Carter RO, Ind. Eng. Chem., 30, 2482 (1991)
Myer HE, J. Port. Coat. Linings, 8, 52 (1991)
Anon H, Ind. Finish, 66, 24 (1990)
Nakamichi T, Ishidoya M, J. Coat. Technol., 60, 33 (1988)
Oldring PKT, Hayward G, "Resins for Surface Coatings," Vol. III, p. 27, Selective Industrial Training Associates Ltd., London (1987)
Backus JK, McAfee ER, Blue CD, McCarty CG, "Encyclopedia of Polymer Science and Engineering," 2nd ed., vol. 13, p. 261, John Wiley & Sons, Inc., New York (1989)
Mark HF, Bikales NM, Overberger CG, Menges G, Kroschwitz JI, "Encyclopedia of Polymer Science and Engineering," 2nd ed., vol. 13, p. 259, John Wiley & Sons, Inc., New York (1989)
Shoemaker SH, J. Coat. Technol., 62, 49 (1990)
Park H, Keun J, Lee K, J. Polym. Sci. A: Polym. Chem., 34(8), 1455 (1996)
Park HS, Hahm HS, Park EK, J. Appl. Polym. Sci., 61(3), 421 (1996)
Park HS, Park EK, Kim SK, Chung KT, Polym.(Korea), 19(1), 19 (1995)
Oldring PKT, Hayward G, "Resins for Surface Coatings," Vol. III, p. 20, Selective Industrial Training Associates Ltd., London (1987)
Union Carbide Co., "Tone Polyols for High-Performance Coatings, Adhesives, and Elastomers," 2nd ed., p. 1, Union Carbide Chem. & Plastics Tech. Co., New York (1989)
Berger DM, Wynstra J, J. Paint Technol., 43, 54 (1971)
Shin JH, Kim SG, Ha KJ, Park HS, J. Korean Ind. Eng. Chem., 8(6), 907 (1997)
Bellamy LJ, "The Infra-red Spectra of Complex Molecules," 4th ed., p. 179, John Wiley & Sons, Inc., New York (1966)
Antonelli T, Am. Paint Coat. J., 59, 31 (1975)
Mark HF, Bikales NM, Overberger CG, Menges G, Kroschwitz JI, "Encyclopedia of Polymer Science and Engineering," vol. 1, p. 656, John Wiley & Sons, Ins., New York (1985)
Gardner RJ, Martin JR, J. Appl. Polym. Sci., 25, 2353 (1980)

[Referenced By]

[1] Lomax GR, J. Coat. Fabr., 20, 88 (1990)

[2] Robinson GN, Alderman JF, Johnson TL, J. Coat. Technol., 65, 51 (1993)

[3] Bauer DR, Gerlock JL, Mielewski DF, Paputa Peck MC, Carter RO, Ind. Eng. Chem., 30, 2482 (1991)

[4] Myer HE, J. Port. Coat. Linings, 8, 52 (1991)

[5] Anon H, Ind. Finish, 66, 24 (1990)

[6] Nakamichi T, Ishidoya M, J. Coat. Technol., 60, 33 (1988)

[7] Oldring PKT, Hayward G, "Resins for Surface Coatings," Vol. III, p. 27, Selective Industrial Training Associates Ltd., London (1987)

[8] Backus JK, McAfee ER, Blue CD, McCarty CG, "Encyclopedia of Polymer Science and Engineering," 2nd ed., vol. 13, p. 261, John Wiley & Sons, Inc., New York (1989)

[9] Mark HF, Bikales NM, Overberger CG, Menges G, Kroschwitz JI, "Encyclopedia of Polymer Science and Engineering," 2nd ed., vol. 13, p. 259, John Wiley & Sons, Inc., New York (1989)

[10] Shoemaker SH, J. Coat. Technol., 62, 49 (1990)

[11] Park H, Keun J, Lee K, J. Polym. Sci. A: Polym. Chem., 34(8), 1455 (1996)

[12] Park HS, Hahm HS, Park EK, J. Appl. Polym. Sci., 61(3), 421 (1996)

[13] Park HS, Park EK, Kim SK, Chung KT, Polym.(Korea), 19(1), 19 (1995)

[14] Oldring PKT, Hayward G, "Resins for Surface Coatings," Vol. III, p. 20, Selective Industrial Training Associates Ltd., London (1987)

[15] Union Carbide Co., "Tone Polyols for High-Performance Coatings, Adhesives, and Elastomers," 2nd ed., p. 1, Union Carbide Chem. & Plastics Tech. Co., New York (1989)

[16] Berger DM, Wynstra J, J. Paint Technol., 43, 54 (1971)

[17] Shin JH, Kim SG, Ha KJ, Park HS, J. Korean Ind. Eng. Chem., 8(6), 907 (1997)

[18] Bellamy LJ, "The Infra-red Spectra of Complex Molecules," 4th ed., p. 179, John Wiley & Sons, Inc., New York (1966)

[19] Antonelli T, Am. Paint Coat. J., 59, 31 (1975)

[20] Mark HF, Bikales NM, Overberger CG, Menges G, Kroschwitz JI, "Encyclopedia of Polymer Science and Engineering," vol. 1, p. 656, John Wiley & Sons, Ins., New York (1985)

[21] Gardner RJ, Martin JR, J. Appl. Polym. Sci., 25, 2353 (1980)