Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Short Aramid Fiber Reinforced Polyethylene and Epoxy Composity- I. Studies on the Curing Acceleration of Epoxy/Amine System by Differential Scanning Calorimeter

Aramid단섬유보강 고기능폴리에틸렌 및 에폭시 복합재료 제조- I.DSC에 의한 에폭시/아민계의 경화 촉진 연구

  • Ha, Chan Sik (Dept. of Polymer Science and Engineering, Pusan National University) ;
  • Lim, Seung Ha (Research Institute, TaeKwang Industrial Co., Ltd.) ;
  • Kim, Byung Kyu (Dept. of Polymer Science and Engineering, Pusan National University) ;
  • Chin, Young Jo (Dept. of Polymer Science and Engineering, Pusan National University) ;
  • Cho, Won Jei (Dept. of Polymer Science and Engineering, Pusan National University)
  • 하창식 (부산대학교 고분자공학과) ;
  • 임승하 (태광산업기술연구소) ;
  • 김병규 (부산대학교 고분자공학과) ;
  • 신영조 (부산대학교 고분자공학과) ;
  • 조원제 (부산대학교 고분자공학과)
  • Received : 1991.11.18
  • Accepted : 1992.01.07
  • Published : 1992.03.31
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Abstract

The curing acceleration of epoxy/amine system was investigated by using differential scanning calorimeter(DSC), The epoxy, diglycidylether of bisphenol A (DGEBA) was cured with methylene dianiline (MDA) with or without accelerators. Two kinds of accelerators were tested for the study ; tris(dimethylaminomethyl)phenol (DMP - 30) and 3 - (3,4 - dichlorophenyl)-1, 1-dimethylurea (DIURON). Heats of reaction and glass transition temperatures ($T_g$) of the cured epoxy system were analyzed by DSC along with the estimation of activation energy by the dynamic DSC studies. It was found that DMP - 30 is more effective accelerator than DIURON which showed faster curing and lower activation energy.

시차주사열량계(DSC)를 이용하여 에폭시 - 아민계의 경화 촉진을 연구하였다. 비스페놀 A의 디글리시딜에테르(DGEBA)든 촉진제와 함께 또는 촉진제 없이 메틸렌디아닐린(MDA)으로 경화시켰다. 본 연구를 위하여 트리스(디메틸아미노메틸페놀(DMP - 30)과 3 - (3,4 - 디클로로페닐) - 1,1 - 디메틸우레아(DIU-ON) 두 종류의 촉진제를 사용하였는데 경화시의 발열량, 유리전이온도($T_g$) 및 동적 DSC에 의한 활성화에너지 계산에 의해 DMP - 30이 빠른 경화 속도 및 낮은 활성화에너지를 보여 DIURON보다 양호한 촉진제임을 알 수 있었다.

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Acknowledgement

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