방식도막의 새로운 평가법

서차수; 박지환; Cha Soo Suh; Jin Hwan Park

Journal of the Korean Industrial and Engineering Chemistry, Vol.12, No.7, 711-717, November, 2001

Export Citation

방식도막의 새로운 평가법

New Evaluation Method for Protective coatings

서차수 ^†, 박지환

부경대학교 공과대학 공업화학과, 부산 608-739

Cha Soo Suh^†, and Jin Hwan Park

Division of Chemical Engineering, Pukyong National University, Busan 608-739, Korea

E-mail:

초록

알키드, 염화고무, 우레탄, 에폭시로 구성된 도막의 방식성능을 평가하기 위하여 촉진열화시험을 행하였다. 촉진열화 시험과정에 있어서 시편은 Weather-O-Meter 내에서 노화조건 즉 xenon 광에 의해 조사되는 조건에 노출시켰다. 도막의 방식성능을 평가하기 위하여 3 가지 다른 방법을 사용하였으며, 각각의 방법에 의해 얻어진 결과들을 상호 비교하였다. 도막의 광택 유지도, 화학구조 변화, 그리고 도장된 시편의 임피던스 등을 gloss meter, FT/IR-ATR, electrochemical impedance spectroscopy 를 이용하여 각각 측정하였다. 각각 다른 3 가지 방법에 의해서도 유사한 평가결과가 얻어짐을 볼 수 있었다. 그리고 도막의 방식성능은 그 수지에 따라 크게 차이가 남을 알 수 있었다. 도막의 방식성능은 우레탄 > 알키드 > 에폭시 > 염화고무수지 순으로 감소하였다.

Accelerated deterioration tests were carried out to evaluate the anticorrosive properties of alkyd, chlorinated rubber, urethane, and epoxy resin varnish coatings. During the deterioration test, the specimens were exposed to weathering conditions, that is, xenon light irradiation in a Weather-O-Meter. Three different methods were used to evaluate the anticorrosive performance of coatings and the results obtained were compared with each other. The gloss retention, change of chemical structure and impedance of coated specimens were monitored using gloss meter, FT/IR-ATR, and electrochemical impedance spectroscopy, respectively. It was shown that the evaluations of the coatings by three different methods reveal similar results. It was demonstrated that the anticorrosive properties of coatings changed dramatically according to resin. The anticorrosive performances of coatings were found to decrease in the order of urethane > alkyd > epoxy > chlorinated rubber resin coating.

Keywords:protective coatings;gloss;retention;FT/IR-ATR;impedance spectroscopy

[References]

Xiao H, Mansfeld F, J. Electrochem. Soc., 141(9), 2332 (1994)
Rautenbach ASM, Pistorius PC, Leitch JE, Polym. Mater. Sci. Eng., 74, 14 (1996)
Amirudin A, Thierry D, Prog. Org. Coat., 26, 1 (1995)
Mansfeld F, Corrosion, 52, 417 (1996)
Chen CT, Skerry BS, Corrosion, 47, 598 (1991)
Pebere N, Picaud T, Duprat M, Dabosi F, Corrosion Sci., 29, 1073 (1989)
Armstrong RD, Wright D, Electrochim. Acta, 38, 1799 (1993)
Defloian F, Fedrizzi L, Locaspi A, Bonora PL, Electrochim. Acta, 38, 1945 (1993)
Hirayama R, Haruyama S, Corrosion, 47, 952 (1991)
Ohno I, Haruyama S, Surf. Technol., 13, 1 (1981)
水流徹, 春山志郞, 防食技術, 27, 573 (1978)
Nishikata A, Haruyama S, Corrosion, 42, 568 (1986)
We C, Nishikata A, Tsuru T, Proc. International Symposium on Solid State Chemistry of Advanced Materials, 221 (1990)
Turner GPA, Introduction to Paint Chemistry and Principles of Paint Technology, 3rd ed., Chapman and Hall, New York, NY, 169 (1988)
Turner GPA, Introduction to Paint Chemistry and Principles of Paint Technology, 3rd ed., Chapman and Hall, New York, NY, 185 (1988)
Griffths PR, deHaseth JA, "Fourier Transform Infrared Spectrometry," John Wiley & Sons, New York (1986)
Skoog DA, 機器分析의 原理, 281 (1989)

[Related Articles]

[1] Xiao H, Mansfeld F, J. Electrochem. Soc., 141(9), 2332 (1994)

[2] Rautenbach ASM, Pistorius PC, Leitch JE, Polym. Mater. Sci. Eng., 74, 14 (1996)

[3] Amirudin A, Thierry D, Prog. Org. Coat., 26, 1 (1995)

[4] Mansfeld F, Corrosion, 52, 417 (1996)

[5] Chen CT, Skerry BS, Corrosion, 47, 598 (1991)

[6] Pebere N, Picaud T, Duprat M, Dabosi F, Corrosion Sci., 29, 1073 (1989)

[7] Armstrong RD, Wright D, Electrochim. Acta, 38, 1799 (1993)

[8] Defloian F, Fedrizzi L, Locaspi A, Bonora PL, Electrochim. Acta, 38, 1945 (1993)

[9] Hirayama R, Haruyama S, Corrosion, 47, 952 (1991)

[10] Ohno I, Haruyama S, Surf. Technol., 13, 1 (1981)

[11] 水流徹, 春山志郞, 防食技術, 27, 573 (1978)

[12] Nishikata A, Haruyama S, Corrosion, 42, 568 (1986)

[13] We C, Nishikata A, Tsuru T, Proc. International Symposium on Solid State Chemistry of Advanced Materials, 221 (1990)

[14] Turner GPA, Introduction to Paint Chemistry and Principles of Paint Technology, 3rd ed., Chapman and Hall, New York, NY, 169 (1988)

[15] Turner GPA, Introduction to Paint Chemistry and Principles of Paint Technology, 3rd ed., Chapman and Hall, New York, NY, 185 (1988)

[16] Griffths PR, deHaseth JA, "Fourier Transform Infrared Spectrometry," John Wiley & Sons, New York (1986)

[17] Skoog DA, 機器分析의 原理, 281 (1989)