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Chae, Han Gi
Polymer nano-composites and Carbon Fiber Laboratory
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Enhancement in mechanical properties of polyamide 66-carbon fiber composites containing graphene oxide-carbon nanotube hybrid nanofillers synthesized through in situ interfacial polymerization

Author(s)
Cho, Beom-GonLee, Jung-EunHwang, Sang-HaHan, Jong HunChae, Han GiPark, Young-Bin
Issued Date
2020-08
DOI
10.1016/j.compositesa.2020.105938
URI
https://scholarworks.unist.ac.kr/handle/201301/32972
Fulltext
https://www.sciencedirect.com/science/article/pii/S1359835X20301779?via%3Dihub
Citation
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, v.135, pp.105938
Abstract
Polyamide 66 (PA66)/carbon fiber (CF) composites with acyl chloride-functionalized GO (AGO) and carbon nanotubes (CNTs) as hybrid fillers were prepared through in situ interfacial polymerization. The optimal ratio of AGO to CNTs in terms of hydrogen bonding in the composites was determined to be 2:1 via thermochemical analyses of the as-prepared PA66/AGO-CNT composites. The optimized hybrid filler-reinforced PA66/CF composites showed improvements in the interfacial shear strength, tensile strengh and storage modulus by 160, 136 and 300%, respectively, compared to the control sample, as well as high damping properties due to an enhanced transcrystalline interphase. The superior interfacial bonding between CF and PA66 is attributed to hydrogen bonding, enhanced dispersion, and the mechanical interlocking effect induced by AGO-CNT hybrids, which lead to effective energy absorption and load transfer.
Publisher
ELSEVIER SCI LTD
ISSN
1359-835X
Keyword (Author)
Carbon fibresPolymer-matrix composites (PMCs)Interface/interphaseMechanical properties
Keyword
PULL-OUTCRYSTALLIZATION BEHAVIORSURFACE-PROPERTIESSHEAR-STRENGTHEPOXYGROWTHNANOCOMPOSITESDEPOSITIONADHESIONNYLON-6

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