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Fabrication of carbon nano tube reinforced grass fiber composite and investigation of fracture surface of reinforced composites

Authors
Kim, HyeongtaeLee, Do-HyeonAn, Woo-JinOh, Chang-HwanJe, YeonjinLee, Dong-ParkCho, KyuchulPark, Jun Hong
Issue Date
2021
Publisher
KOREAN ASSOC CRYSTAL GROWTH, INC
Keywords
CNT; Glass fiber composite; Tensile strength; Epoxy; Necking
Citation
JOURNAL OF THE KOREAN CRYSTAL GROWTH AND CRYSTAL TECHNOLOGY, v.31, no.4, pp 159 - 165
Pages
7
Indexed
ESCI
KCI
Journal Title
JOURNAL OF THE KOREAN CRYSTAL GROWTH AND CRYSTAL TECHNOLOGY
Volume
31
Number
4
Start Page
159
End Page
165
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/5718
DOI
10.6111/JKCGCT.2021.31.4.159
ISSN
1225-1429
2234-5078
Abstract
The fiber composites have been investigated as lightweight structure material platforms for aerospace applications because their strength can be enhanced by adding reinforcement without a significant increase in weight. In this study, the fabrication and characterization of carbon nanotube (CNT) reinforced glass fiber composites are demonstrated to enhance the tensile strength of longitudinal direction along the glass fibers. Due to the reinforcement of CNT in epoxy layers, the yield strength of fiber/epoxy composites is enhanced by about 10 %. Furthermore, using scanning electron microscopy, analysis of fracture surfaces shows that mixed CNT in epoxy layers acts as necking agents between fractured surfaces of fiber/epoxy; thereby, initiation and evolution of crack across fiber composite can be suppressed by CNT necking between fractured surfaces.
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대학원 (나노신소재융합공학과)
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