Molecular simulation and experimental analysis on thermal and mechanical properties of carbon nanotube/epoxy resin composites with different curing agents at high-low temperature

2017 ◽  
Vol 39 (S2) ◽  
pp. E945-E954 ◽  
Author(s):  
Wenqing Zhang ◽  
Hao Li ◽  
Liang Gao ◽  
Qingjie Zhang ◽  
Weihong Zhong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Low Temperature ◽  
Epoxy Resin ◽  
Molecular Simulation ◽  
Experimental Analysis ◽  
Resin Composites ◽  
Thermal And Mechanical Properties ◽  
Curing Agents ◽  
Epoxy Resin Composites

The curing kinetics and mechanical properties of epoxy resin composites reinforced by PEEK microparticles

2020 ◽  
Vol 91 ◽  
pp. 106781
Author(s):  
Ting Zheng ◽  
Hang Xi ◽  
Zixuan Wang ◽  
Xiaohong Zhang ◽  
Yuan Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Curing Kinetics ◽  
Resin Composites ◽  
Epoxy Resin Composites

scholarly journals Dielectric Spectroscopy and Tunability of Multi-Walled Carbon Nanotube / Epoxy Resin Composites

2010 ◽  
Vol 19 (6) ◽  
pp. 096369351001900 ◽  
Author(s):  
Z Špitalský ◽  
S N Georga ◽  
C A Krontiras ◽  
C Galiotis
Keyword(s):  
Carbon Nanotube ◽  
Percolation Threshold ◽  
Epoxy Resin ◽  
Temperature Region ◽  
Dielectric Response ◽  
Effective Dielectric Constant ◽  
Free Energy Barrier ◽  
Resin Composites ◽  
Multi Walled Carbon Nanotube ◽  
Epoxy Resin Composites

The dielectric response of oxidized multi-walled carbon nanotube / epoxy resin composites, is investigated with respect to filler content concentration, over a wide temperature and frequency range. Specimens, below the percolation threshold, exhibit similar behaviour to that of the neat epoxy. Two relaxation modes are observed in the low temperature region, attributed to the re-arrangement of small parts of the polymer chain (γ-mode) and the reorientation of polar side groups (β-mode) respectively, where in the high temperature region the evolution of the α-mode is present. Direct current (DC) conduction follows the Vogel – Tamann - Fulcher equation as expected. The dielectric response of specimens, above the percolation threshold, follows the “Random Free Energy Barrier Model”. DC conductivity exhibits Arrhenius temperature dependence with two distinct regions. The activation energies of both regions were evaluated. The contact resistance between two adjacent carbon nanotubes was also calculated. The effective dielectric constant as well as the capacitance of the specimens, above the percolation threshold, can be modulated by means of an applied DC bias voltage.

scholarly journals Development of Coffee Biochar Filler for the Production of Electrical Conductive Reinforced Plastic

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1916 ◽  
Author(s):  
Mauro Giorcelli ◽  
Mattia Bartoli
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Electrical Properties ◽  
Carbon Black ◽  
Epoxy Resin ◽  
Resin Composites ◽  
Powder Form ◽  
Coffee Waste ◽  
Reinforced Plastic ◽  
Epoxy Resin Composites

In this work we focused our attention on an innovative use of food residual biomasses. In particular, we produced biochar from coffee waste and used it as filler in epoxy resin composites with the aim to increase their electrical properties. Electrical conductivity was studied for the biochar and biochar-based composite in function of pressure applied. The results obtained were compared with carbon black and carbon black composites. We demonstrated that, even if the coffee biochar had less conductivity compared with carbon black in powder form, it created composites with better conductivity in comparison with carbon black composites. In addition, composite mechanical properties were tested and they generally improved with respect to neat epoxy resin.

Preparation and characterization of Mechanical Properties of Epoxy Resin Composites reinforced with Non Bio-degradable Wastes

2018 ◽  
Vol 5 (9) ◽  
pp. 19723-19727 ◽  
Author(s):  
Asmeeta Jagdev ◽  
Bidyut Prava Jena ◽  
Bijaya Bijeta Nayak ◽  
Suchismita Satapathy
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Resin Composites ◽  
Epoxy Resin Composites
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