에폭시 수지의 경화 거동에 미치는 반응성 희석제의 영향

김완영; 이대수; 김형순; 김정기

Journal of the Korean Industrial and Engineering Chemistry, Vol.5, No.6, 1030-1035, December, 1994

Export Citation

에폭시 수지의 경화 거동에 미치는 반응성 희석제의 영향

Effects of Reactive Diluents on the Curing Behavior of Epoxy Resin

김완영, 이대수, 김형순, 김정기

초록

에폭시 수지의 성형 가공성을 조절하기 위해 반응성 희석제를 사용했을 때의 경화특성 및 경화 후 유리 전이온도의 변화를 조사하였다. 반응성 희석제로 사용한 Butyl gilcidyl ether(BGE) 및 Phenyl glycidyl ether(PGE)함량의 증가에 따라 경화에 따른 발열량과 경화 후 유리 전이온도는 낮아지는 특성이 관찰되었다. 에폭시 수지는 BGE를 사용한 경우 PGE를 사용한 경우보다 더 낮은 유리 전이온도를 보였으며, 희석제의 첨가에 따른 유리 전이온도 변화는 가교점 사이의 분자량 증가 때문으로 해석하였다. 에폭시 수지의 경화 거동을 자촉매 반응에 대한 속도론식으로 해석한 결과 속도상수 k₁, k₂는 희석제의 양에 따라 감소하였다.

Curing behavior and glass transition temperatures of epoxy resins into which reactive diluents were added to control processability were investigated. Heat of cure generated of the epoxy resin was reduced with butyl glycidyl ether(BGE) and phenyl glycidyl ether(PGE) contents. T_g of the resin was decreased with the amount of reactive diluents and it was attributed to increased molecular weight between crosslink points. Cure kinetics of the resins was studied employing autocatalytic reaction model and found that reaction constants decreased as the contents of reactive diluent was increased.

[References]

Lewis AF, Chap. 7, "Epoxy Resins, Chemistry and Technology," Ed. by C.A. May, 653, Marcel Dekker, Inc., New York (1988)
Schmidt RG, Bell JP, Advances in Polymer Science, 75, 33, Springer-Verlag, Berlin (1986)
Mika TF, Bauer RS, "Chap. 4 in "Epoxy Resins, Chemistry and Technology, Ed. by C.A. May, 465, Marcel Dekker Inc., New York (1988)
Ryan ME, Dutta A, Polymer, 20, 203 (1979)
Miller RL, Oebser MA, Thermochim. Acta, 36, 121 (1980)
Hadad DK, Chap. 14 in "Epoxy Resins, Chemistry and Technology," ed. by C.A. May, 1089, Marcel Dekker Inc., New York (1988)
Fava RA, Polymer, 9, 137 (1968)
Diamant Y, Welner S, Katz D, Polymer, 11, 498 (1970)
Lielsen LE, Mechanical Properties of Polymers and Composites, 1, 18, Marcel Dekker Inc., New York (1974)
DeAcetis W, Newey HA, Chap. 4 in "Epoxy Resins, Chemistry and Technology," ed. by C.A. May, 508, Marcel Dekker Inc., New York (1988)

[1] Lewis AF, Chap. 7, "Epoxy Resins, Chemistry and Technology," Ed. by C.A. May, 653, Marcel Dekker, Inc., New York (1988)

[2] Schmidt RG, Bell JP, Advances in Polymer Science, 75, 33, Springer-Verlag, Berlin (1986)

[3] Mika TF, Bauer RS, "Chap. 4 in "Epoxy Resins, Chemistry and Technology, Ed. by C.A. May, 465, Marcel Dekker Inc., New York (1988)

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

[5] Miller RL, Oebser MA, Thermochim. Acta, 36, 121 (1980)

[6] Hadad DK, Chap. 14 in "Epoxy Resins, Chemistry and Technology," ed. by C.A. May, 1089, Marcel Dekker Inc., New York (1988)

[7] Fava RA, Polymer, 9, 137 (1968)

[8] Diamant Y, Welner S, Katz D, Polymer, 11, 498 (1970)

[9] Lielsen LE, Mechanical Properties of Polymers and Composites, 1, 18, Marcel Dekker Inc., New York (1974)

[10] DeAcetis W, Newey HA, Chap. 4 in "Epoxy Resins, Chemistry and Technology," ed. by C.A. May, 508, Marcel Dekker Inc., New York (1988)