Dielectric Properties of Polymer Composites with Carbon Nanotubes of Different Diameters

2014 ◽  
Vol 14 (7) ◽  
pp. 5430-5434 ◽  
Author(s):  
Jan Macutkevic ◽  
Alesia Paddubskaya ◽  
Polina Kuzhir ◽  
Juras Banys ◽  
Sergey Maksimenko ◽  
...  
2015 ◽  
Vol 51 (5) ◽  
pp. 2616-2626 ◽  
Author(s):  
Suting Liu ◽  
Ming Tian ◽  
Liqun Zhang ◽  
Yonglai Lu ◽  
Tung W. Chan ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (9) ◽  
pp. 4543-4551 ◽  
Author(s):  
Nanying Ning ◽  
Xue Bai ◽  
Dan Yang ◽  
Liqun Zhang ◽  
Yonglai Lu ◽  
...  

2014 ◽  
Vol 2 (21) ◽  
pp. 7980-7987 ◽  
Author(s):  
Anthony B. Dichiara ◽  
Jinkai Yuan ◽  
Shenghong Yao ◽  
Alain Sylvestre ◽  
Laurent Zimmer ◽  
...  

Polymer composites prepared using the simultaneous growth of aligned CNTs on different ceramic microparticles reveal enhanced dielectric properties, providing great potential for power energy storage applications.


2020 ◽  
Vol 9 (1) ◽  
pp. 1170-1182
Author(s):  
Muhammad Razlan Zakaria ◽  
Hazizan Md Akil ◽  
Mohd Firdaus Omar ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Aslina Anjang Ab Rahman ◽  
...  

AbstractThe electrospray deposition method was used to deposit carbon nanotubes (CNT) onto the surfaces of woven carbon fiber (CF) to produce woven hybrid carbon fiber–carbon nanotubes (CF–CNT). Extreme high-resolution field emission scanning electron microscopy (XHR-FESEM), X-ray diffraction (XRD), Raman spectroscopy and Fourier transform infrared spectroscopy (FT-IR) were used to analyze the woven hybrid CF–CNT. The results demonstrated that CNT was successfully and homogenously distributed on the woven CF surface. Woven hybrid CF–CNT epoxy composite laminates were then prepared and compared with woven CF epoxy composite laminates in terms of their flexural and dielectric properties. The results indicated that the flexural strength, flexural modulus and dielectric constant of the woven hybrid CF–CNT epoxy composite laminates were improved up to 19, 27 and 25%, respectively, compared with the woven CF epoxy composite laminates.


2021 ◽  
Vol 5 (6) ◽  
pp. 141
Author(s):  
Imen Elloumi ◽  
Ahmed Koubaa ◽  
Wassim Kharrat ◽  
Chedly Bradai ◽  
Ahmed Elloumi

The characterization of the dielectric properties of wood–polymer composites (WPCs) is essential to understand their interaction with electromagnetic fields and evaluate their potential use for new applications. Thus, dielectric spectroscopy monitored the evolution of the dielectric properties of WPCs over a wide frequency range of 1 MHz to 1 GHz. WPCs were prepared using mixtures of different proportions (40%, 50%, and 60%) of wood and bark fibers from various species, high-density polyethylene, and maleated polyethylene (3%) by a two-step process, extrusion and compression molding. Results indicated that wood fibers modify the resistivity of polyethylene at low frequencies but have no effect at microwave frequencies. Increasing the fiber content increases the composites’ dielectric properties. The fibers’ cellulose content explains the variation in the dielectric properties of composites reinforced with fibers from different wood species. Indeed, composites with high cellulose content show higher dielectric constants.


2021 ◽  
Vol 1758 (1) ◽  
pp. 012015
Author(s):  
V A Kobzev ◽  
N G Chechenin ◽  
K A Bukunov ◽  
E A Vorobyeva ◽  
A V Makunin

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