화학공학소재연구정보센터
Journal of the Korean Industrial and Engineering Chemistry, Vol.7, No.2, 387-392, April, 1996
천연 제올라이트/에폭시 복합재료의 경화반응 속도론
Cure Kinetics of Natural Zeolite/Epoxy Composites
초록
천연 제올라이트/에폭시 수지 복합재료의 경화반응 속도론을 연구하기 위해 DSC 분석법 중 승온적 방법을 이용하였다. 천연 제올라이트의 함량이 증가함에 따라 반응 시작온도와 발열피크의 온도가 낮아졌다. Diglycidyl ether of bisphenol A(DGEBA)/4,4'-methylene dianiline(MDA)/malononitrile(MN, 10phr)에 제올라이트를 20phr 충전한 경우에는 하나의 발열피크가 나타나며, 30phr인 경우에는 shoulder가 나타났다. 40phr의 제올라이트가 충전된 경우에는 발열피크가 두 개로 분리되며, 첫번째 발열피크의 활성화에너지, Ea1은 12.30 kJ/mol이고, 두번째 발열피크의 활성화에너지, Ea2는 12.70 kJ/mol이었다.
Natural zeoliie/epoxy resin composites were prepared and the cure kinetics was studied by dynamic DSC analysis. With the increments of natural zeolite content, the reaction starting temperature and the exothermic peak temperature were decreased. When diglycidyl ether of bisphenol A(DGEBA)/4,4'-methylene dianiline(MDA)/malononitrile(MN, 10phr) was filled with 20phr of zeolite, DSC thermogram had one peak and when it was filled with 30phr of zeolite, a shoulder appeared on the DSC thermogram. With the filling of 40phr of zeolite, DSC thermogram was separated into two peaks and the activation energy of the first peak, Ea1 was 12.30 kJ/mol and that of the second peak, Ea2 was 12.70 kJ/mol.
  1. Fu Q, Wang G, J. Appl. Polym. Sci., 49, 1985 (1993) 
  2. Fu Q, Wang G, Polym. Eng. Sci., 32, 94 (1992) 
  3. Al-Ghamdi AMS, Mark JE, Polym. Bull., 20, 537 (1988)
  4. Kim SW, J. Polym. Sci. C: Polym. Lett., 20, 273 (1982)
  5. Nakatsuka T, J. Appl. Polym. Sci., 24, 1985 (1979) 
  6. Lee JY, Shim MJ, Kim SW, J. Korean Ind. Eng. Chem., 5(6), 1024 (1994)
  7. Subhash B, "Zeolite Catalysis: Principles and Applications," 164, CRC Press, Inc., Boca Raton, Florida (1990)
  8. Lee JY, Lee HK, Lee JS, Shim MJ, Kim SW, J. Korean Inst. Surf. Eng., 26, 285 (1993)
  9. Lee JY, Lee HK, Shim MJ, Kim SW, Proceed. of IUMRS-ICA-'95, Seoul, 711 (1995)
  10. Lee JY, Shim MJ, Kim SW, Proceed. of IUMRS-ICA-'95, Seoul, 717 (1995)
  11. Lee HK, Shim MJ, Lee JS, Kim SW, ECOM-CONF'95, China, 494 (1995)
  12. Prime RB, "Thermal Characterization of Polymeric Materials," E.A. Turi, Academic Press, New York (1982)
  13. Lee JY, Shim MJ, Kim SW, IUMRS-ICA'94 Symposia Proceeding, Taiwan, 699 (1995)
  14. Saunder TF, Levy MF, Serino JF, J. Polym. Sci. A: Polym. Chem., 1, 1609 (1967)
  15. Lee JY, Shim MJ, Kim SW, J. Korean Ind. Eng. Chem., 5(5), 904 (1994)
  16. Sekutowski D, "Plastics Additives and Modifiers Handbook," ed. J. Edenbaum, ch. 35, Van Nostrand Reinhold, New York (1992)
  17. Lee JY, Shim MJ, Kim SW, Korean J. Mater. Res., 5, 667 (1995)
  18. Lee JY, Shim MJ, Kim SW, Mater. Chem. Phys., 44, 74 (1996)