Carbon Nanotubes Effect for Polymer Materials on Break Down Voltage

Abstract

Epoxy resin composites reinforced to different types of carbon nano-particles have been fabricated. Carbon black (20, 30 and 40 wt. %), graphene (0.5 to 4 wt. %) and carbon nanotubes (CNT) (0.5 to 2 wt. %) were added with different weight percentages to epoxy. The dielectric strength of composites was tested in several conditions such as (dry, wet, low salinity and high salinity). The mechanical characterization showed that the nano-composite Polymer enhanced by using these particles in the tensile strength. Thermal gravimetric analysis shows effect of these nano-particles on the thermal structure of epoxy resin. Scanning Electron Microscopic test is used to characterize the dispersion of carbon nano-particles and to analysis the fractured parts in the nano scale. Keyword:Carbon nano tubes Carbon black Graphene Dielectric strength Tensile strength Copyright © 2017 Institute of Advanced Engineering and Science.All rights reserved. Corresponding Author:Marina N. Kamel, Maintenance Engineer at Marwa Company, Aswan, Egypt. Email: eng.marina2013@gmail.com INTRODUCTIONThe electrical behavior for epoxy hybrid composites depends on the added filler. Therefore the filler contains two types with different particle size (filler). The main purpose of filler addition is the improvement of electrical performance and mechanical feature. The resistivity of composite with filler is maximized comparing with nano and micro composite [1]. Conducting polymers have been the subjects of study for many decades as possible synthetic metals. However, the practical uses of conducting polymers are not very likely because of their poor mechanical properties and process ability that rarely meet the industrial requirements. Thus, a unique combination of electronic and mechanical properties of composites of conducting polymers with conventional polymers seems to have great applications. The applications of conducting polymers are used in light emitting diode (LED) [2], sensors [3], a microbial fuel cell (MFC) [4], Organic Thin Film Transistor (OTFT) [5]. The field of nanoscience has blossomed over the last two decades and the importance of nanotechnology increase in areas such as computing, sensors, biomedical and many other applications. In this regard the discovery of grapheme [6] and graphene-based polymer nano composites is an important addition in the field of nano science. Carbon nanotubes were first discovered in 1991, and quickly became the focus of much research activity, due to their exceptional electrical, mechanical, and thermal properties [7].Carbon assumes an array of structural forms, such as diamond, graphite, graphene, fullerenes, carbon nanotubes, and amorphous carbon [8], [9]. Carbon nanomaterials have emerged as a rising star in the material science community, during the past two decades [10][11][12]. Carbon nanotubes and graphenes are also studied for the development of batteries, supercapacitors, and fuel cells [13][14][15][16][17][18][19][20]. Most of the research works on the conductive polymers composites focus on modi...

Effect of Chirality and Oxide Thikness on the Performance of a Ballistic CNTFET

“…Carbon nanotubes were first discovered in 1991, and became rapidly the focus of much research activity, due to their exceptional electrical, mechanical, and thermal properties [4]. These devices, ideal elementary components for the realization of nano-devices, have the possibility of being able to be semiconductors or metal.…”