Effect of carbon black on improving thermal stability, flame retardancy and electrical conductivity of polypropylene/carbon fiber composites

2015 ◽  
Vol 113 ◽  
pp. 31-37 ◽  
Author(s):  
Hongfan Yang ◽  
Jiang Gong ◽  
Xin Wen ◽  
Jian Xue ◽  
Qing Chen ◽  
...  
Author(s):  
Parisa Zamani ◽  
Omid Zabihi ◽  
Mojtaba Ahmadi ◽  
Roya Mahmoodi ◽  
Thathsarani Kannangara ◽  
...  

2018 ◽  
Vol 54 (5) ◽  
pp. 3893-3903
Author(s):  
Xi Chen ◽  
Alexander Smorgonskiy ◽  
Jianfang Li ◽  
Anastasios P. Vassilopoulos ◽  
Marcos Rubinstein ◽  
...  

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 328
Author(s):  
Ritesh Ghimire ◽  
Frank Liou

Multifunctional carbon fiber composites provide promising results such as high strength-to-weight ratio, thermal and electrical conductivity, high-intensity radiated field, etc. for aerospace applications. Tailoring the electrical and structural properties of 3D-printed composites is the critical step for multifunctional performance. This paper presents a novel method for evaluating the effects of the coating material system on the continuous carbon fiber strand on the multifunctional properties of 3D-printed composites and the material’s microstructure. A new method was proposed for the quasi-static characterization of the Compressive-Electrical properties on the additively manufactured continuous carbon fiber solid laminate composites. In this paper, compressive and electrical conductivity tests were simultaneously conducted on the 3D-printed test coupons at ambient temperature. This new method modified the existing method of addressing monofunctional carbon fiber composites by combining the monofunctionality of two or more material systems to achieve the multifunctional performance on the same component, thereby reducing the significant weight. The quasi-static multifunctional properties reported a maximum compressive load of 4370 N, ultimate compressive strength of 136 MPa, and 61.2 G Ohms of electrical resistance. The presented method will significantly reduce weight and potentially replace the bulky electrical wires in spacecraft, unmanned aircraft systems (UAS), and aircraft.


2020 ◽  
Vol 858 ◽  
pp. 140-145
Author(s):  
Sung Soo Kim

The microwave absorbing properties of multi-layer carbon/carbon fiber composites, designed to function as radar absorbing structures (RAS), were studied over the X-band frequency range (8.0-12.4 GHz). High-frequency electromagnetic properties of various fibers (glass, carbon) and particulate filler (carbon black) are investigated as the major constituent materials of the RAS. Free space measurement depicts the perfect reflecting properties of carbon fiber composites (S11 = 0 dB, S21 = −40 dB). In the two-layered composite laminate (impedance transformer/reflecting substrate), the use of carbon black is necessary in the impedance transforming layer to obtain the high level of microwave absorbance and frequency tuning. Through the layer combination of the glass-fiber composite (thickness = 2.45 mm) containing carbon black (3% in weight) and carbon fiber composite as reflecting substrate, S11 can be reduced to as low as −40 dB at the frequency of 11.7 GHz, maintaining a low level of S21. The results demonstrate that RAS can be efficiently designed with the laminates of fiber reinforced composites with impedance transforming layer (glass fiber with suitable amount of carbon black) and perfectly reflecting substrate (carbon fiber).


Sign in / Sign up

Export Citation Format

Share Document