Improvement in electrical, thermal and mechanical properties of epoxy by filling carbon nanotube
By Yuan-yuan Zhou, P. X. Wu, Z.Y. Cheng, J. Ingram, S. Jeelani. 2008
214 citations recorded by the source corpus.
In this study, electrical, thermal and mechanical properties of multi-walled carbon nanotubes (CNTs) reinforced Epon 862 epoxy have been evaluated. Firstly, 0.1, 0.2, 0.3, and 0.4 wt% CNT were infused into epoxy through a high inten- sity ultrasonic liquid processor and then mixed with EpiCure curing agent W using a high speed mechanical agitator. Elec- tric conductivity, dynamic mechanical analysis (DMA), three point bending tests and fracture tests were then performed on unfilled, CNT-filled epoxy to identify the loading effect on the properties of materials. Experimental results show signifi- cant improvement in electric conductivity. The resistivity of epoxy decreased from 1014 Ω·m of neat epoxy to 10 Ω·m with 0.4% CNT. The experimental results also indicate that the frequency dependent behavior of CNT/epoxy nanocomposite can be modeled by R-C circuit, permittivity of material increase with increasing of CNT content. 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. Mechanical test results showed that modulus increased with higher CNT loading percentages, but the 0.3 wt% CNT-infu- sion 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.
Subfields: Materials Chemistry, Pollution, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/7a32a375cd26fa1350b0f896368c413a21156103
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In Materials Chemistry
In Polymers and Plastics
Citations in the corpus
- Effect of functionalization on the thermo-mechanical and electrical behavior of multi-wall carbon nanotube/epoxy composites (2011, background): “[23] Zhou YX, Wu PX, Cheng ZY, Ingram J, Jeelani S.”
- Effects of graphene oxides on the cure behaviors of a tetrafunctional epoxy resin (2011, background): “CNT- and CNF-reinforced epoxy nanocomposites have shown improved mechanical, electrical and thermal properties [2–5].”