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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2016.12
- 수록면
- 1,727 - 1,731 (5page)
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Porous carbon foams are used as insulation materials at high temperature. The carbon foams are fabricated by pyrolyzing thermosetting resin derived from polymer foams. Phenolic resins are a good source of carbon foams due to low level of toxic gas emission and high heat resistance. However, the carbon foams based on the phenolic foams have inferior mechanical strength and electrical conductivity because of glassy carbon formed after the carbonization procedure. There are many researches about the nano-particles reinforced the phenolic foams to improve the mechanical strength and electrical conductivity of the carbon foam. When the conductive nano-particles were reinforced in the precursor foam before carbonization, it leads to high cell density and cell uniformity affecting the physical and electrical properties of carbon foam. However, conductive nano-particles such as graphene and carbon nanotube in the carbon foam are easily aggregated, which causes low mechanical properties of the carbon foam. In addition, high weight fraction of particle was required to improve the electrical properties. In this study, the MWCNT embedded polyimide particle (Composite particles; CP) which has high thermal stability, mechanical properties and carbon yield by intermolecular cyclization after carbonization process was reinforced to improve the mechanical and electrical properties of carbon foam. The MWCNT embedded polyimide particle was fabricated by removing the solvent of PI varnish mixed with MWCNT and by grinding the MWCNT embedded polyimide pellet. The CP reinforced phenolic foams were carbonized at 1000°C under nitrogen atmosphere. The cell morphology of the carbon foams were observed by scanning electron microscope (SEM) images. The physical properties and electrical characteristics of carbon foams were characterized by measuring compressive strength and electrical conductivity.
목차
Abstract
1. 서론
2. 실험 및 분석 방법
3. 결과 및 고찰
4. 결론
참고문헌
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UCI(KEPA) : I410-ECN-0101-2017-550-002049658