탄소나노섬유가 강화된 하이브리드 복합재료의제조 및 기계적 특성
Manufacture and Mechanical Properties of Carbon Nanofiber Reinforced Hybrid Composites
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초록
탄소나노섬유는 기계적, 전기적, 화학적, 열적 성질 등의 우수하고, 독특한 특성을 가진다. 이러한 탄소나노섬유의 우수한 물성에도 불구하고, 탄소나노섬유가 강화된 고분자 복합재료의 물성은 비례적으로 증가하지 않는다. 이러한 원인은 탄소나노섬유가 고분자 재료 내에 고루 분산되지 못하기 때문이다. 본 연구에서는 복합재료의 기계적 물성을 향상시키기 위해, 탄소나노섬유가 강화된 하이브리드 복합재료에 대한 연구를 수행하였다. 탄소나노섬유의 고른 분산을 위해, 초음파 분산장치를 이용한 용융 혼합방법을 이용하였고, 전자현미경(SEM)을 통해 탄소나노섬유의 분산정도를 확인하였으며, 만능시험기(UTM)를 이용하여 탄소나노섬유가 강화된 하이브리드 복합재료의 기계적 물성을 평가하였다.
Abstract
Carbon nanofiber exhibits superior and often unique characteristics of mechanical, electrical, chemical and thermal properties. Despite of the excellent properties of carbon nanofiber, the properties of carbon nanofiber filled polymer composites were not increased largely. The reason is that it is still difficult to ensure the uniform dispersion of carbon nanofiber in a polymer matrix. In this study, for improvement of the mechanical properties of composites, carbon nanofiber reinforced hybrid composites was investigated. For the dispersion of carbon nanofiber, solution blending method using ultrasonic was used. Dispersion of carbon nanoifiber was observed by scanning electron microscope (SEM). Mechanical properties were measured by universal testing machine(UTM).
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