TY - JOUR
T1 - Preparation of small CNTs@Fe3O4 and alignment in carbon fabrics/epoxy composites to improve mechanical and tribological properties
AU - Tong, Zhe
AU - Lu, Hailin
AU - Guo, Feifei
AU - Lei, Wenxing
AU - Dong, Mochen
AU - Dong, Guangneng
N1 - Publisher Copyright:
© 2020, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2021/1/1
Y1 - 2021/1/1
N2 - The CNTs@Fe3O4 hybrids were synthesized via a modified co-precipitation method and aligned along the through-thickness of carbon fabrics-reinforced epoxy composites (CFRPCs) by applying a weak magnetic field. The effects of the length, orientation and concentration of CNTs@Fe3O4 on the mechanical and tribological properties of CFRPCs were investigated. The results showed that the modified co-precipitation method decreased the size of Fe3O4 nanoparticles (approximately 10 nm in diameter), promoting the dispersion of CNTs@Fe3O4 in epoxy resin. The alignment of CNTs@Fe3O4 hybrids significantly increased the interlaminar shear strength (ILSS) and hardness of CFRPCs. The long CNTs@Fe3O4 can more effectively improve the ILSS of CFRPCs compared to short CNTs@Fe3O4. Besides, the addition of aligned CNTs@Fe3O4 hybrids significant improves the tribological properties of CFRPCs. Compared to long CNTs@Fe3O4-reinforced CFRPCs, the short CNTs@Fe3O4-reinforced CFRPCs show the best tribological properties. The properties anisotropy of CNTs@Fe3O4 and high CNTs@Fe3O4 concentration in near surface of CFRPCs are the main reason for the improvement in tribological properties of CFRPCs.
AB - The CNTs@Fe3O4 hybrids were synthesized via a modified co-precipitation method and aligned along the through-thickness of carbon fabrics-reinforced epoxy composites (CFRPCs) by applying a weak magnetic field. The effects of the length, orientation and concentration of CNTs@Fe3O4 on the mechanical and tribological properties of CFRPCs were investigated. The results showed that the modified co-precipitation method decreased the size of Fe3O4 nanoparticles (approximately 10 nm in diameter), promoting the dispersion of CNTs@Fe3O4 in epoxy resin. The alignment of CNTs@Fe3O4 hybrids significantly increased the interlaminar shear strength (ILSS) and hardness of CFRPCs. The long CNTs@Fe3O4 can more effectively improve the ILSS of CFRPCs compared to short CNTs@Fe3O4. Besides, the addition of aligned CNTs@Fe3O4 hybrids significant improves the tribological properties of CFRPCs. Compared to long CNTs@Fe3O4-reinforced CFRPCs, the short CNTs@Fe3O4-reinforced CFRPCs show the best tribological properties. The properties anisotropy of CNTs@Fe3O4 and high CNTs@Fe3O4 concentration in near surface of CFRPCs are the main reason for the improvement in tribological properties of CFRPCs.
UR - https://www.scopus.com/pages/publications/85092489013
U2 - 10.1007/s10853-020-04885-z
DO - 10.1007/s10853-020-04885-z
M3 - 文章
AN - SCOPUS:85092489013
SN - 0022-2461
VL - 56
SP - 1386
EP - 1400
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 2
ER -