Electrically Insulated Epoxy Nanocomposites Reinforced with Synergistic Core-Shell SiO2 @MWCNTs and Montmorillonite Bifillers

2017 ◽  
Vol 218 (23) ◽  
pp. 1700357 ◽  
Author(s):  
Zijian Wu ◽  
Sheng Gao ◽  
Lei Chen ◽  
Dawei Jiang ◽  
Qian Shao ◽  
...  
Carbon ◽  
2016 ◽  
Vol 101 ◽  
pp. 239-244 ◽  
Author(s):  
Osman Eksik ◽  
Stephen F. Bartolucci ◽  
Tushar Gupta ◽  
Hafez Fard ◽  
Theodorian Borca-Tasciuc ◽  
...  

2014 ◽  
Vol 983 ◽  
pp. 99-102
Author(s):  
Huai Yuan Wang ◽  
Lei Yan ◽  
Yan Ji Zhu ◽  
Hua Song ◽  
Jia Hua Zhu

Epoxy resin (EP) nanocomposites reinforced with different contents of core-shell structured Ni@NiO nanoparticles (NPs) were fabricated by using a surface wetting method. The nanoindentation and nanoscratch properties of Ni@NiO/EP nanocomposites were comparatively studied based on nanoindentation technique. Results revealed that 5 wt.% content of Ni@NiO NPs was the optimal concentration for Ni@NiO/EP composites to obtain the best improvement of nanomechanical properties. In comparison with pristine EP, the highest enhancements of hardness and elastic modulus of 5 wt.% Ni@NiO/EP nanocomposites were increased by 37.8% and 16.3%, respectively.


2018 ◽  
Vol 27 (3) ◽  
pp. 168-175
Author(s):  
Dong Quan ◽  
Alojz Ivankovic

This work investigates the effects of core–shell rubber (CSR) nanoparticles on the curing behaviour and thermo-mechanical properties of an epoxy using differential scanning calorimetry and dynamic mechanical thermal analysis approaches. Interaction between CSR nanoparticles and epoxy matrix is detected at a temperature of approximately 97°C in the curing process. This results in an increase in the glass transition temperature ( Tg) of the cured nanocomposites. Given the semi-dynamic curing schedule, the curing process of all the epoxy nanocomposites consists of an abrupt onset stage followed by a slow diffusion-controlled stage. Higher temperature is required to initiate the curing for the epoxy nanocomposites with higher loading of CSR nanoparticles. This is attributed to the physical changes caused by the addition of CSR nanoparticles, such as the increase in the viscosity and the reduction in the density of the reactive groups. The storage modulus of the epoxy decreases in the glassy region but remains constant in the rubbery region due to the incorporation of CSR nanoparticles.


2003 ◽  
Vol 43 (10) ◽  
pp. 1635-1645 ◽  
Author(s):  
K. T. Gam ◽  
M. Miyamoto ◽  
R. Nishimura ◽  
H. J. Sue

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