NPG 함량에 따른 DGEBA/MDA 계의 경화반응 속도론

이흥기; 김양림; 이재영; 김상욱; Hong-Ki Lee; Yang-Lim Kim; Jae-Young Lee; Sang-Wook Kim

Korean Journal of Materials Research, Vol.9, No.5, 467-472, May, 1999

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NPG 함량에 따른 DGEBA/MDA 계의 경화반응 속도론

Cure Kinetics of DGEBA/MDA System with Various Contents of NPG

이흥기, 김양림¹, 이재영¹, 김상욱¹

우석대학교 화학공학과
¹서울시립대학교 화학공학과

Hong-Ki Lee, Yang-Lim Kim¹, Jae-Young Lee¹, and Sang-Wook Kim¹

Dept. of Chem. Eng., Woosuk Uniν., Wanju 565-701, Korea
¹Dept. of Chem. Eng., The Univ. of Seoul, Seoul 130-743, Korea

초록

Neopentyl glycol(NPG) 의 함량변화에 따른 diglycidyl ether of bisphenol A (DG EBA) /4,4’ -methylene dianiline (MDA) 계의 등온적 경화거동을 DSC를 이용하여 분석하였다. DGEBA/MDA 계의 경화속도를 증가시키기 위하여 NPG를 첨가하였다. NPG 함량에 관계없이 전화율 곡선이 s- 자 모양이었으며, 이것은 DGEBA/MDA/NPG 계의 경화반응이 자촉매 반응 메커니즘에 따른다는 것을 의미한다. NPG 의 함량이 증가함에 따라 경화속도가 증가하였으며, 이것은 NPG 가 가지고 있는 두 개의 hydroxyl 기가 촉매로 작용하기 때문이다.

The isothermal αlre behavior of diglycidyl ether of bisphenol A(DGEBA)/ 4,4’ - methylene dianiline(MDA) system with various contents of neopentyl glycol{NPG) has been analyzed by differential scanning calorImetry(DSC). To increase the cure rate of DGEBA/MDA system, NPG was introduced as an accelerator. Regardless of the NPG content, the shape of the conversion curves showed sigmoid indicating that DGEBA/MDA/NPG system followed autocatalytic cure reaction. The cure reaction of DGEBA/MDA system increased with the increment of NPG ∞ntent and it was due to the catalytic role of hydroxyl groups of NPG.

[References]

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Domenici C, Levita G, Marchetti A, Frosini V, ibid., 34, 2285 (1987)
Varughese S, Tripathy DK, ibid., 49, 1115 (1993)
Manzinoe LT, Gillham JK, ibid., 26, 889 (1981)
Lee JY, Shim MJ, Kim SW, Mater. Chem. Phys., 44, 74 (1996)
Lee JY, Shim MJ, Kim SW, IUMRS-ICA-’ 94 Symposium Proceedings, Taiwan, 699 (1995)
Gu J, Narang SC, Pearce EM, J. Appl. Polym. Sci., 30, 2997 (1985)
Ryan ME, Dutta A, Polymer, 20, 203 (1979)
Dutta A, Ryan ME, J. Appl. Polym. Sci., 24, 635 (1979)
Golub MA, Lerner NR, ibid., 32, 5215 (1986)
Sourour S, Kamal MR, Thermochim. Acta, 14, 41 (1976)
Horie K, Hiura H, Sawada M, Mita I, Kamba H, J. Polym. Sci. A: Polym. Chem., 8, 1357 (1970)
Acitelli MA, Prime RB, Sacher E, Polym., 12, 335 (1971)
Lee JY, Shim MJ, Kim SW, J. Korean Ind. Eng. Chem., 5(5), 904 (1994)
Lee JY, Shim MJ, Kim SW, Korean J. Mater. Res., 6, 644 (1996)
Kishore K, Joseph M, Dharumaraj V, Vijayshree MN, J. Appl. Polym. Sci., 31, 2829 (1986)
Lee JY, Shim MJ, Kim SW, J. Korean Ind. Eng. Chem., 5(4), 731 (1994)
Prime RB, Sacher E, Polym., 13, 445 (1972)
Prime RB, Polym. Eng. Sci., 13, 365 (1963)
Mijovic J, Kim JW, Slaby J, J. Appl. Polym. Sci., 29, 1449 (1984)
Keenam MR, ibid., 33, 1725 (1987)

[1] Takemura A, Shiozawa K, Tomita BI, Mizumachi H, J. Appl. Polym. Sci., 31, 1351 (1986)

[2] Domenici C, Levita G, Marchetti A, Frosini V, ibid., 34, 2285 (1987)

[3] Varughese S, Tripathy DK, ibid., 49, 1115 (1993)

[4] Manzinoe LT, Gillham JK, ibid., 26, 889 (1981)

[5] Lee JY, Shim MJ, Kim SW, Mater. Chem. Phys., 44, 74 (1996)

[6] Lee JY, Shim MJ, Kim SW, IUMRS-ICA-’ 94 Symposium Proceedings, Taiwan, 699 (1995)

[7] Gu J, Narang SC, Pearce EM, J. Appl. Polym. Sci., 30, 2997 (1985)

[8] Ryan ME, Dutta A, Polymer, 20, 203 (1979)

[9] Dutta A, Ryan ME, J. Appl. Polym. Sci., 24, 635 (1979)

[10] Golub MA, Lerner NR, ibid., 32, 5215 (1986)

[11] Sourour S, Kamal MR, Thermochim. Acta, 14, 41 (1976)

[12] Horie K, Hiura H, Sawada M, Mita I, Kamba H, J. Polym. Sci. A: Polym. Chem., 8, 1357 (1970)

[13] Acitelli MA, Prime RB, Sacher E, Polym., 12, 335 (1971)

[14] Lee JY, Shim MJ, Kim SW, J. Korean Ind. Eng. Chem., 5(5), 904 (1994)

[15] Lee JY, Shim MJ, Kim SW, Korean J. Mater. Res., 6, 644 (1996)

[16] Kishore K, Joseph M, Dharumaraj V, Vijayshree MN, J. Appl. Polym. Sci., 31, 2829 (1986)

[17] Lee JY, Shim MJ, Kim SW, J. Korean Ind. Eng. Chem., 5(4), 731 (1994)

[18] Prime RB, Sacher E, Polym., 13, 445 (1972)

[19] Prime RB, Polym. Eng. Sci., 13, 365 (1963)

[20] Mijovic J, Kim JW, Slaby J, J. Appl. Polym. Sci., 29, 1449 (1984)

[21] Keenam MR, ibid., 33, 1725 (1987)