| 학회 | 한국고분자학회 |
| 학술대회 | 2002년 봄 (04/12 ~ 04/13, 서울대학교) |
| 권호 | 27권 1호, p.216 |
| 발표분야 | 복합재료 |
| 제목 | Interfacial Evaluation and Microfailue Mechanisms of Carbon Fiber/Epoxy-Amine Terminated Polyetherimide (PEI) Composites with Curing Agents using Micromechanical Test |
| 초록 | The possibility for improving the toughness using a commercial grade PEI to toughen epoxy resin has been investigated widely. It showed that the stress transfer from the matrix to fiber in epoxy-PEI composite occurred efficiently because of homogeneous phase separation with PEI particles in epoxy matrix. Amine terminate (AT) PEI was synthesized for improving fracture toughness and interfacial adhesion. Nadic methyl anhydride (NMA) and diaminodiphenyl methane (DDM) were used as curing agents for epoxy matrix. Interfacial properties and microfailure modes of carbon fiber reinforced epoxy-AT PEI composite were investigated using micromechanical test. Matrix fracture toughness was measured by three-point short beam test. Mechanical and interfacial properties of epoxy-AT PEI with curing agents were correlated with matrix toughness. As AT PEI content increased, the fracture toughness and IFSS increased gradually. Amine groups in AT PEI may contribute to the improvement in IFSS by chemical interaction. Acknowledgment: This work was financially supported by Agency for Defense Development (ADD) through Research Center for Aircraft Parts Technology (ReCAPT), GNU. |
| 저자 | 김대식1, 공진우2, 박종만3, 김민영*4, 김원호*, 안병현** |
| 소속 | 1경상대, 2항공기부품기술연구센터, 3*부산대, 4**부경대 |
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