Enhanced Mechanical Properties of Multiscale Carbon Fiber/Epoxy Unidirectional Composites with Different Dimensional Carbon Nanofillers

被引：6
|
作者：
Liu, Yu [1 ]
Zhang, Dong-Dong [2 ]
Cui, Guang-Yuan [1 ]
Luo, Rui-Ying [1 ]
Zhao, Dong-Lin [2 ]
机构：
[1] Beihang Univ, Res Inst Frontier Sci, Beijing 100029, Peoples R China
[2] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Key Lab Carbon Fiber & Funct Polymers, Minist Educ, Beijing 100029, Peoples R China
来源：
NANOMATERIALS | 2020年 / 10卷 / 09期
关键词：
graphene; carbon nanotubes; epoxy; mechanical property; composites; GRAPHENE OXIDE; COVALENT FUNCTIONALIZATION; HYBRID NANOCOMPOSITES; PERFORMANCE; NANOTUBES; CHEMISTRY; GRAPHITE; STRENGTH; BEHAVIOR;
D O I：
10.3390/nano10091670
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ammonia modified graphene-carbon nanotubes/continuous carbon fiber reinforced epoxy unidirectional multiscale composites (AMGNS-MWCNT/CFEP) were prepared by adding ammonia modified graphene and carbon nanotubes to an epoxy matrix to reduce agglomeration of carbon nanofillers in the epoxy matrix and improve composites properties. Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and universal testing machines were used to characterize the properties of carbon nanofillers, AMGNS-MWCNT/epoxy nanocomposites, and AMGNS-MWCNT/CFEP unidirectional composites. When the AMGNS-MWCNT content was 1.0 wt%, flexural strength, the flexural modulus and interlaminar shear strength of AMGNS-MWCNT/CFEP unidirectional composites reached the maximum value of 1520.3 MPa, 138.88 GPa, and 87.80 MPa, respectively, which were 12.5%, 9.42%, and 10.1% higher than that of carbon fiber reinforced epoxy unidirectional composites (CFEP). The synergistic mechanism of two carbon nanofillers in the matrix is discussed.
引用
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页码：1 / 12
页数：12
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