Hybrid Composite Materials Generated Via Growth of Carbon Nanotubes in Expanded Graphite Pores Using a Microwave Technique

2022 ◽  
pp. 109185
Author(s):  
Baoyan Xing ◽  
Jianguo Zhao ◽  
Yunpeng Ren ◽  
Qiliang Pan ◽  
Jie Song ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Materials ◽  
Hybrid Composite ◽  
Expanded Graphite ◽  
Microwave Technique

Viscoelastic and mechanical properties of CNT-reinforced polymer-based hybrid composite materials using hygrothermal creep

2021 ◽  
Vol 29 (9_suppl) ◽  
pp. S1386-S1402
Author(s):  
S Srikant Patnaik ◽  
Tarapada Roy
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Composite Materials ◽  
Multiwalled Carbon Nanotubes ◽  
Hybrid Composite ◽  
Viscoelastic Properties ◽  
Hybrid Composites ◽  
Multiwalled Carbon ◽  
Ultrasonic Probe ◽  
Reinforced Polymer

In the present work, a combination of experimental and numerical procedure is proposed to study the effects of different hygrothermal conditions on the creep strain, viscoelastic properties of nanocomposites, and mechanical properties of such nanocomposite-based carbon fiber–reinforced polymer (CFRP) hybrid composite materials. Ultrasonic probe sonicator is used to randomly disperse the multiwalled carbon nanotubes into an epoxy to minimize agglomerations. Dynamic mechanical analysis is employed to conduct the creep tests under different hygrothermal conditions of such nanocomposite samples. The Findley power law is used to obtain the long-term creep behavior of nanocomposite materials. Prony series is used to determine the viscoelastic properties of nanocomposite material in the frequency domain. Coefficient of moisture expansion (CME) is independent of moisture concentration; thus, CME of the nanocomposite is also determined. Strength of materials and Saravanos–Chamis micromechanics (SCM) have also been utilized to obtain the mechanical properties of such hybrid composite materials under different hygrothermal conditions. It has been found that the inclusion of multiwalled carbon nanotubes in the nanocomposite and hybrid composites improves storage modulus and loss factor (i.e., tan δ) compared to the conventional CFRP-based composite materials under hygrothermal conditions.

scholarly journals Design and Fabrication of Absorptive/Transmissive Radome Based on Lumped Elements Composed of Hybrid Composite Materials

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 129576-129585
Author(s):  
In-Gon Lee ◽  
Won-Seok Oh ◽  
Yoon Jae Kim ◽  
Ic-Pyo Hong
Keyword(s):  
Composite Materials ◽  
Hybrid Composite ◽  
Lumped Elements

Effect of Expanded Temperature on Microstructure of Carbon Nanotubes/Expanded Graphite Composites

2013 ◽  
Vol 716 ◽  
pp. 373-378
Author(s):  
Qian Zhang ◽  
Xin Bao Gao ◽  
Tian Peng Li
Keyword(s):  
Carbon Nanotubes ◽  
Composite Material ◽  
High Temperature ◽  
Carbon Nanotube ◽  
Physical Adsorption ◽  
Expanded Graphite ◽  
Graphite Flake ◽  
Graphite Composite ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Carbon nanotube/expanded graphite composite material was prepared by expanding the mixture of multi-walled carbon nanotubes and expansible graphite under the condition of high temperature. The microstructure and composition was studied by using SEM and XRD. The study shows that the tubular structure of carbon nanotubes in the composite material is changed by high temperature expanding process, and the microstructure is different with different expanding temperature. When the expanding temperature was 900°C, carbon nanotubes transformed, then attached to the surface of expanded graphite flake, so carbon nanotubes and expanding graphite combined strongly; globular carbon nanotubes attached to the surface of expanded graphite flake at the temperature of 700°C, both were combined much more strongly; carbon nanotubes retained the tube structure at the temperature of 500°C, combination was looser due to the simple physical adsorption. The result shows that the choice of expanding temperature has an important effect on microstructure of carbon nanotube/expanded graphite composite material.

The conductivity in Composite Materials Based on Oriented Carbon Nanotubes

2021 ◽  
Vol 76 (1) ◽  
pp. 29-35
Author(s):  
E. A. Vorobyeva ◽  
A. P. Evseev ◽  
V. L. Petrov ◽  
A. A. Shemukhin ◽  
N. G. Chechenin
Keyword(s):  
Carbon Nanotubes ◽  
Composite Materials

Influence of the range of grinding thermo-expanded graphite on physical-mechanical and tribotechnical properties of composite materials produced on its basis

2018 ◽  
Vol 5 (12) ◽  
pp. 26113-26118
Author(s):  
Elena Matygullina ◽  
Dmitrii Karavaev ◽  
Lyudmila Sirotenko ◽  
Almaz Khanov ◽  
Oleg Isaev
Keyword(s):  
Composite Materials ◽  
Expanded Graphite ◽  
Tribotechnical Properties
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