화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2007년 가을 (10/11 ~ 10/12, 일산킨텍스)
권호 32권 2호
발표분야 나노구조제어 및 분석기술
제목 Interfacial Evaluation and Self-sensing of Single Carbon Fiber/CNT-Epoxy Composites using Electro-Micromechanical Technique
초록 Interfacial evaluation and self-sensing were investigated for single carbon fiber/carbon nanotube (CNT)-epoxy composites by electro-micromechanical technique under loading/subsequent unloading. Optimized dispersion parameters were obtained to improve mechanical and electrical properties. Apparent modulus and electrical contact resistivity for CNT/epoxy composites were evaluated as functions of different added concentrations. CNT/epoxy composites with higher CNT concentration showed to be higher apparent modulus due to high volume content due to better stress transfer. Thermodynamic wettability between carbon fiber and matrix with CNT was correlated with micromechanical result. Demage sensing of CNT/epoxy composites was also investigated by acoustic amission (AE). Ackowledgement: This work was supported by Defense Acquisition Program Administration and ADD under the contract UD070009AD. Kim, Pyung-Gee is grateful to the second stage of BK21 program for supporting a fellowship.
저자 김평기1, 장정훈1, 박종만1, 박종규2
소속 1경상대, 2국방과학(연)
키워드 Self-sensing; Carbon nanotube; Electro-micromechanical technique; Wettability
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