Next Article in Journal
Review: Modes and Processes of Severe Plastic Deformation (SPD)
Previous Article in Journal
Identification and Characterization of Defects in Glass Fiber Reinforced Plastic by Refining the Guided Lamb Waves
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle
Materials 2018, 11(7), 1174; https://doi.org/10.3390/ma11071174

Experimental Study on Force Sensitivity of the Conductivity of Carbon Nanotubes-Modified Epoxy Resins

1
Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, China
2
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
3
Jiangsu Advanced Institute of Seismic Resistant Technology for Mechanical and Electrical Equipment, Xingzhuang Industrial Park, Lishui District, Nanjing 211200, China
*
Author to whom correspondence should be addressed.
Received: 4 May 2018 / Revised: 23 June 2018 / Accepted: 3 July 2018 / Published: 10 July 2018
View Full-Text   |   Download PDF [6031 KB, uploaded 10 July 2018]   |  

Abstract

The addition of a conductive material into polymer improves its mechanical properties, electrical properties and thermal conductivity and bestows it with good self-sensing and self-adjusting properties. In this study, carbon nanotubes-modified epoxy resins (CNTs-EP) were successfully prepared with good dispersion through the combined methods of three roller rolling, ultrasonic processing and adding surfactant. Tests were conducted to evaluate the resistivity of unloaded modified epoxy resins with different mixing amounts of carbon nanotubes (CNTs), to determine the conductive percolation threshold. On the basis of the test results, a series of monotonic and cyclic uniaxial tensile tests were then conducted to investigate the force sensitivity of the conductivity of epoxy resins modified with different mixing amounts of CNTs. The relationship between the stress and the resistivity under various mixing amounts was studied, indicating that the resistance response could play a good warning role on the damage of the modified polymer material. View Full-Text
Keywords: carbon nanotubes; epoxy resin; force sensitivity; mixing amount; resistivity carbon nanotubes; epoxy resin; force sensitivity; mixing amount; resistivity
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Wan, C.-F.; Wen, B.; Dai, J.-G.; Liu, J.-X.; Liu, Y.-Z. Experimental Study on Force Sensitivity of the Conductivity of Carbon Nanotubes-Modified Epoxy Resins. Materials 2018, 11, 1174.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top