| 학회 |
한국공업화학회 |
| 학술대회 |
2013년 봄 (05/01 ~ 05/03, ICC JEJU) |
| 권호 |
17권 1호 |
| 발표분야 |
고분자 중합공정 및 응용 |
| 제목 |
Mechanically Strong and Multifunctional Polyimide Nanocomposites Using Amimophenyl Functionalized Graphene Nanosheets |
| 초록 |
We report an effective way to fabricate mechanically strong and multifunctional polyimide (PI) nanocomposites using aminophenyl functionalized graphene nanosheet (APGNS). APGNS was successfully obtained through a diazonium salt reaction. PI composites with different loading of APGNS were prepared by in situ polymerization. Both the mechanical and electrical properties of the APGNS/PI composites were significantly improved compared with those of pure PI due to the homogeneous dispersion of APGNS and the strong interfacial covalent bonds between APGNS and the PI matrix. The electrical conductivity of APGNS/PI (3:97 w/w) was 6.6×10-2 S/m which was about 1011 times higher than that of Pure PI. Furthermore, the modulus of APGNS/PI was increased up to 16.5 GPa, which is approximately a 610% enhancement compared to that of pure PI, and tensile strength was increased from 75 MPa to 138 MPa. |
| 저자 |
유남호1, 황준연1, 고문주1, 이중희2, 박옥경1, 구본철1
|
| 소속 |
1한국과학기술(연), 2전북대 |
| 키워드 |
Polyimide; graphene; nanocomposite
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| E-Mail |
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