Preparation and Characteristics of Two-Component Polyurethane Coatings by Alkyd-Lactone-Modified Polyester/TDI-Isocyanurate

Hong-Soo Park; Eun-Kyung Park; Seong-Kil Kim; Pan-Woo Shin

Journal of Industrial and Engineering Chemistry, Vol.5, No.1, 59-64, March, 1999

Hong-Soo Park^†, Eun-Kyung Park¹, Seong-Kil Kim², and Pan-Woo Shin³

Department of Chemical Engineering, Myong Ji University, Yongin 449-728, Korea
¹SMBA Technical Assistance Center, Taejon 305-342, Korea
²Sam-Hwa Paints Ind. Co. Ltd., Ansan 425-110, Korea
³Department of Industrial Chemical, Dong Yang Tech. College, Seoul 152-714, Korea

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Alkyd-polycaprolactone (lactone)-modified polyester (ALMP) was synthesized by introducing 3,5,5-trimethylhexanoic acid and lactone chosen as the component of alkyd and lactone polyol into modified polyester Two-component polyurethane coatings were prepared by blending tolyrene diisocyanate (TDI)-isocyanurate, pigment, flowing agent, and wetting/ dispersing agent into the synthesized ALMP. After the film was coated with the prepared polyurethane coatings, the various physical properties were measured. They showed drying time of 2∼3 h and pot-life time of 20∼25 h, which could belong to the coatings with long pot-life time. They showed good physical properties such as thermal resistance, flexibility, impact resistance, cross-hatch adhesion, fineness of grind, abrasion resistance, yellowness index, lightness index difference, and the rest of properties were comparable to existing coatings. These advantages are the results of introducing alkyd and lactone polyols.

Keywords:polyurethane coatings;alkyd-lactone-modified polyester;TDI-isocyanurate;drying time;pot-life time

[References]

Jacobs PB, Yu PC, J. Coat. Technol., 65, 45 (1993)
Shoemaker SH, J. Coat. Technol., 62, 49 (1990)
Nakamichi T, Ishidoya M, J. Coat. Technol., 60, 33 (1988)
Xiao HX, Frisch KC, J. Coat. Technol., 61, 51 (1989)
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)
Mark HF, Bikales NM, Overberger CG, Menges G, Kroschwitz JI, Encyclopedia of Polymer Science and Engineering, 2nd Ed., Vol. 13, pp. 259-261, Wiley, New York (1989)
Oldring PKT, Hayward G, Resins for Surface Coatings, vol. III, pp. 20-23, Selective Industrial Training Associates Ltd., London (1987)
Union Carbide Co., Tone Polyols for High-Performance Coatings, Adhesives, and ELastomers, 2nd Ed., pp. 1-7, Union Carbide Chem. & Plastics Tech. Co., New York (1989)
Kim SK, Chung KT, Park HS, J. Korean Oil Chem. Soc., 12, 19 (1995)
Glaser DW, Official Digest, 33, 642 (1961)
Farbwerke Hoechst AG, Isooctanoic Acid/Isononanoic Acid, 44A-10, Technical Bulletin, Frankfurt (1964)
Park HS, Ha KJ, Keun JH, Kim TO, J. Appl. Polym. Sci., 70(5), 913 (1998)
Mark HF, Bikales NM, Overberger CG, Menges G, Kroschwitz JI, Encyclopedia of Polymer Science and Engineering, 2nd Ed., Vol. 1, p. 656, Wiley, New York (1985)
Yokouchi R, Nakamura I, Polyester Fiber, 5th Ed., p. 87, Korona Co. Ltd., Tokyo (1974)
Pohl HA, J. Am. Chem. Soc., 73, 5660 (1951)
Wendlandt WW, ThermoanalyticalTechniques, Vol. 2, Marcel Dekker, New York (1974)

[Referenced By]

[Related Articles]

[1] Jacobs PB, Yu PC, J. Coat. Technol., 65, 45 (1993)

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

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

[4] Xiao HX, Frisch KC, J. Coat. Technol., 61, 51 (1989)

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

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

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

[8] Mark HF, Bikales NM, Overberger CG, Menges G, Kroschwitz JI, Encyclopedia of Polymer Science and Engineering, 2nd Ed., Vol. 13, pp. 259-261, Wiley, New York (1989)

[9] Oldring PKT, Hayward G, Resins for Surface Coatings, vol. III, pp. 20-23, Selective Industrial Training Associates Ltd., London (1987)

[10] Union Carbide Co., Tone Polyols for High-Performance Coatings, Adhesives, and ELastomers, 2nd Ed., pp. 1-7, Union Carbide Chem. & Plastics Tech. Co., New York (1989)

[11] Kim SK, Chung KT, Park HS, J. Korean Oil Chem. Soc., 12, 19 (1995)

[12] Glaser DW, Official Digest, 33, 642 (1961)

[13] Farbwerke Hoechst AG, Isooctanoic Acid/Isononanoic Acid, 44A-10, Technical Bulletin, Frankfurt (1964)

[14] Park HS, Ha KJ, Keun JH, Kim TO, J. Appl. Polym. Sci., 70(5), 913 (1998)

[15] Mark HF, Bikales NM, Overberger CG, Menges G, Kroschwitz JI, Encyclopedia of Polymer Science and Engineering, 2nd Ed., Vol. 1, p. 656, Wiley, New York (1985)

[16] Yokouchi R, Nakamura I, Polyester Fiber, 5th Ed., p. 87, Korona Co. Ltd., Tokyo (1974)

[17] Pohl HA, J. Am. Chem. Soc., 73, 5660 (1951)

[18] Wendlandt WW, ThermoanalyticalTechniques, Vol. 2, Marcel Dekker, New York (1974)