Journal of the Korean Industrial and Engineering Chemistry, Vol.5, No.4, 731-736, August, 1994
Kissinger Equation과 Fractional Life법에 의한 DGEBA/MDA/MN계와 DGEBA/MDA/MN/HQ계의 경화반응 속도론
Cure Kinetics of DGEBA/MBA/MN and DGEBA/MDA/MN/HQ Systems by Kissinger Equation and Fractional Life Method
초록
DGEBA/MDA/MN계와 이 계에 촉매로서 hydroquinone(HQ)를 첨가한 계의 경화반응 속도론을 Fractional life법 및 Kissinger equation에 의해 연구함으로써 HQ가 경화반응 속도에 미치는 영향을 연구하였다. 경화반응 온도가 증가함에 따라 반응속도는 증가하였고, 반응차수는 약간의 변화가 있을 뿐 경화온도에 따른 경향성은 없었다. 촉매로 HQ를 첨가한 계가 첨가하지 않은 계보다 반응속도는 크게 증가하였고, 활성화 에너지는 13% 감소하였다. 이는 HQ의 히드록시기가 에폭사이드기, 아민기와 반응하여 전이상태를 형성함으로써 에폭사이드 고리를 쉽고 빠르게 개환시켜 주기 때문이다.
Cure kinetics of DGEBA/MDA/MN system with and without HQ were studied by Fractional life method and Kissinger equation. And the effect of HQ as a catalyst was studied. As cure temperature increased, the reaction rate increased and reaction order was almost constant. The activation energy of the system with HQ was lower about 13% and the reaction rate was higher than that of the system without HQ. It was because hydroxyl group of HQ formed a transition state with epoxide group and amine group and opened the epoxide ring easily and rapidly.
- Prime RB, "Thermal Characterization of Polymeric Materials," E.A. Turi, Academic Press, New York (1982)
- Duffy JV, Hui E, Hartmann B, J. Appl. Polym. Sci., 33, 2959 (1987)
- Keenan MR, J. Appl. Polym. Sci., 33, 1725 (1987)
- Lee SN, Yuo WB, Polym. Eng. Sci., 27, 1317 (1987)
- Sabra A, Pascault JP, Seytre G, J. Appl. Polym. Sci., 32, 5147 (1986)
- Mones ET, Morgan RT, Polym. Mater. Sci. Eng., 51, 430 (1986)
- Tanaka Y, KakiuchH, J. Macromol. Chem., 1, 307 (1966)
- Cho SW, Shim MJ, Kim SW, J. Korean Mater. Res., 2, 257 (1992)
- Chern CS, Poehlein GW, Polym. Eng. Sci., 27, 788 (1987)
- Riccardi CC, Adabbo HE, Williams RJJ, J. Appl. Polym. Sci., 29, 2481 (1984)
- Horie K, Hiura H, Sawada M, Mita I, Kambe H, J. Polym. Sci. A: Polym. Chem., 8, 1357 (1970)
- Golub MA, Lerner NR, Hsu MS, J. Appl. Polym. Sci., 32, 5215 (1986)
- Chapmann NB, Parker RE, J. Chem. Sci., 2, 1925 (1959)
- Cho SW, Shim MJ, Kim SW, "Computer Aided Innovation of New Materials II," North-Holland Part 2, 1439 (1993)