scholarly journals Carboxyl-terminated butadiene-acrylonitrile-toughened epoxy/carboxyl-modified carbon nanotube nanocomposites: Thermal and mechanical properties

2012 ◽  
Vol 6 (9) ◽  
pp. 719-728 ◽  
Author(s):  
Y. T. Wang ◽  
C. S. Wang ◽  
H. Y. Yin ◽  
L. L. Wang ◽  
H. F. Xie ◽  
...  
2020 ◽  
Vol 138 (14) ◽  
pp. 50175
Author(s):  
Bluma Guenther Soares ◽  
Adriana A. Silva ◽  
Verônica D. Lima ◽  
Deborah N. Barros ◽  
Sebastien Livi

Author(s):  
Yuanxin Zhou ◽  
Peixuan Wu ◽  
Zhongyang Cheng ◽  
Biddut Kanti Dey ◽  
Shaik Jeelani

In this study, electrical, thermal and mechanical properties of multi-walled carbon nanotubes (CNTs) reinforced Epon 862 epoxy have been evaluated. Firstly, 0.1 wt%, 0.2 wt%, 0.3 wt%, and 0.4 wt% CNT were infused into epoxy through a high intensity ultrasonic liquid processor and then mixed with EpiCure curing agent W using a high speed mechanical agitator. The trapped air and reaction volatiles were removed from the mixture using a high vacuum. Neat epoxy sample also was made as reference. Electrical conductivity, dynamic mechanical analysis (DMA, three point bending tests and fracture tests were performed on unfilled, CNT-filled epoxy to identify the loading effect on the properties of composites. Experimental results show significant improvement in electric conductivity. The resistivity of epoxy decreased to 15Ωm with 0.4% CNT. DMA studies revealed that filling the carbon nanotube into epoxy can produce a 90% enhancement in storage modulus and a 17° C increase in Tg, but CNT has little effect on decomposing temperature. Mechanical test results showed that modulus increased with higher CNT loading percentages, but the 0.3 wt% CNT-infusion system showed the maximum strength and fracture toughness enhancement. The decrease in strength and fracture toughness in 0.4% CNT/epoxy was attributed to poor dispersions of nanotubes in the composite.


2019 ◽  
Vol 137 (5) ◽  
pp. 48330 ◽  
Author(s):  
Bruno Ribeiro ◽  
Jefersson A. R. Corredor ◽  
Laura Ardila ◽  
Luis F. P. Santos ◽  
Michelle L. Costa ◽  
...  

Carbon ◽  
2018 ◽  
Vol 126 ◽  
pp. 197-207 ◽  
Author(s):  
Chunyu Du ◽  
Mei Li ◽  
Min Cao ◽  
Shichao Feng ◽  
Hong Guo ◽  
...  

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