| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션) |
| 권호 |
20권 1호 |
| 발표분야 |
무기재료_포스터 |
| 제목 |
Fabrication of high strength PVA composite fiber with poly(dopamine)-coated graphene oxide by gel spinning |
| 초록 |
High-strength composite fiber were prepared from poly(vinyl alcohol) (PVA) reinforced by poly(dopamine)-coated graphene oxide (dGO). GO sheets were simultaneously modified and reduced by heat-induced polymerization of poly(dopamine) in neutral aqueous solution. The macroscopically homogeneous dispersion dGO in PVA/dimethyl sulfoxide (DMSO)/H2O solution was extruded into methanol to form fibers by gel spinning followed by a hot-drawing. A combination of hydrogen bonding and strong adhesion of poly(dopamine) at the interface of PVA and GO sheets resulted in increase their mechanical properties. The tensile strength of PVA/dGO composite fiber with 0.3 wt% dGO was 1.21 GPa, which increased by 114.2 % relative to neat PVA fiber. |
| 저자 |
강동우, 신현석
|
| 소속 |
UNIST |
| 키워드 |
Graphene oxide; Poly(dopamine); PVA fiber
|
| E-Mail |
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