scholarly journals Fabrication of Flexible Electrically Conductive Polymer Based Micro-Patterns using Plasma Discharge

2020 ◽  
Author(s):  
Asma Abdulgader Abdul-kareem ◽  
Anton Popelka ◽  
Jolly Bhadra
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Integrated Circuits ◽  
Conductive Polymer ◽  
Nano Particles ◽  
Adhesion Promoter ◽  
Electrically Conductive ◽  
Planar Silicon ◽  
Silicon Based ◽  
Micro Patterns

The application of polymer-based micro-patterns in the field of flexible micro-electronics has become the focus as to replace rigid and planar silicon based integrated circuits with weak bendability. Polyethylene terephthalate (PET) can be used as a substrate because of its excellent flexible and mechanical properties and polyaniline (PANI) is a typical representative of the electrical conductive polymers applicable for this purpose. PANI excels by a stable and controllable electrical conductivity, high environment stability, and ease fabrication. An improvement of electrical conductivity of PANI can be achieved using different nano-particles, such as carbon nanotubes (CNTs). CNTs since their discovery have attracted attention due to their excellent electrical, thermal, and mechanical properties, and had divergent applications, such as complex nano/micro-electronic devices, energy storage and both chemical and bio sensors. This research was focused on the preparation of micro-patterns based on electrically conductive PANI using shaping mold and cold plasma acting as adhesion promoter for PET substrate. The PANI/CNTs nano-composite was used to enhance an electrical conductivity of prepared micropatterns. The adhesion of prepared micro-patterns was evaluated based on the peel tests measurement. Various microscopic techniques, such as profilometry, scanning electron microscopy and atomic force microscopy (AFM), proved the homogeneous structures of prepared polymer based micro-patterns. Broad dielectric spectroscopy and conductive AFM confirmed electrical behavior of prepared micro-patterns.

Polypyrrole/PU hybrid hydrogels: electrically conductive and fast self-healing for the potential application in body-monitor sensor

2021 ◽  
Author(s):  
Zhanyu Jia ◽  
Guangyao Li ◽  
Juan Wang ◽  
shouhua Su ◽  
Jie Wen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Potential Application ◽  
Self Healing ◽  
Electrically Conductive ◽  
Sensor Application ◽  
Hybrid Hydrogels ◽  
Health Monitor

Conductivity, self-healing and moderate mechanical properties are necessary for multifunctional hydrogels which have great potential in health-monitor sensor application. However, the combination of electrical conductivity, self-healing and good mechanical properties...

scholarly journals Mechanical Properties and Electrical Discharge Machinability of Alumina-10 vol% Zirconia-28 vol% Titanium Nitride Composites

Ceramics ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 199-209 ◽  
Author(s):  
Andrea Gommeringer ◽  
Frank Kern
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Composite Material ◽  
Titanium Nitride ◽  
Electrical Discharge ◽  
Fracture Resistance ◽  
High Strength ◽  
Electrically Conductive ◽  
Material Hardness ◽  
Ceramic Components

Electrical discharge machinable ceramics provide an alternative machining route independent on the material hardness which enables manufacturing of customized ceramic components. In this study a composite material based on an alumina/zirconia matrix and an electrically conductive titanium nitride dispersion was manufactured by hot pressing and characterized with respect to microstructure, mechanical properties and ED-machinability by die sinking. The composites show a combination of high strength of 700 MPa, hardness of 17–18 GPa and moderate fracture resistance of 4.5–5 MPa√m. With 40 kS/m the electrical conductivity is sufficiently high to ensure ED-machinability.

Effect of Electrical Conductivity and Physical Performance about Vulcanization System in Conductive Silicon Rubber

2014 ◽  
Vol 577 ◽  
pp. 39-43
Author(s):  
Yue Xian Zhang ◽  
Bin Li
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Composite Materials ◽  
Polymer Composites ◽  
Conductive Polymer ◽  
Research Progress ◽  
Silicon Rubber ◽  
Conductive Polymer Composites ◽  
Rubber Composite ◽  
Influence Degree

Vulcanization methods of conductive silicon rubber are described in this paper. Several common vulcanization agents are also be introduced. The conductivity and mechanical properties of the conductive silicon rubber composite materials are effected by vulcanization systems. The influence degree is introduced by respectively using different vulcanization method, vulcanizing time and vulcanizing temperature. The research progress of vulcanization system of conductive polymer composites is elaborated.

scholarly journals EFFECT OF CNTS ON THE ELECTRICAL AND MECHANICAL PROPERTIES OF POLYMERIC COMPOSITE AS PEM FUEL CELL BIPOLAR PLATE

2018 ◽  
Vol 80 (6) ◽  
Author(s):  
A. Bairan ◽  
M. Z. Selamat ◽  
S. N. Sahadan ◽  
S. A/L Malingam ◽  
N. Mohamad
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Ball Mill ◽  
Conductive Polymer ◽  
Polymeric Composite ◽  
Pem Fuel Cell ◽  
Bipolar Plate ◽  
Bipolar Plates ◽  
Dry Mixing ◽  
Mixing Method

The use of Carbon Nanotubes (CNTs) as a reinforcement in conductive polymer composite (CPCs) of bipolar plates nowadays attracts a great deal of attention. Therefore, the aim of this study was to identify the most effective and suitable ratio of CNTs loading in multi filler Graphite (G), Carbon Black (CB) composite using a medium crystallinity and low crystallinity Polypropylene (PP) denoted as MC-PP and LC-PP respectively. The composite were developed through compression molding technique with dry mixing method by using a ball mill to investigate the influence of crystallinity on the dispersion of CNTs in PP matrix. Incorporating CNTs as a third filler in G/CB/CNTs/PP nanocomposites produces a synergistic effect that enhances the electrical conductivity, flexural strength, bulk density and hardness of the nanocomposite which exceeded U.S. DOE requirement. The results indicated that CNTs was given more affect in MC-PP than LC-PP due to better electrical conductivity and mechanical properties of G/CB/CNTs/PP composite as bipolar plate.

scholarly journals The Influence of Compounding Parameters on the Electrical Conductivity of LDPE/Cu Conductive Polymer Composites (CPCs)

2021 ◽  
Vol 2080 (1) ◽  
pp. 012008
Author(s):  
Farah Badrul ◽  
Khairul Anwar Abdul Halim ◽  
MohdArif Anuar Mohd Salleh ◽  
Azlin Fazlina Osman ◽  
Nor Asiah Muhamad ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Polymer Composites ◽  
Low Cost ◽  
Conductive Polymer ◽  
Conductive Filler ◽  
Filler Loading ◽  
Electrically Conductive ◽  
Statistical Software ◽  
Conductive Polymer Composites ◽  
The Matrix

Abstract Low-linear density (LDPE) and copper (Cu) were used as main polymer matrix and conductive filler in order to produce electrically conductive polymer composites (CPC). The selection of the matrix and conductive filler were based on their due to its excellence properties, resistance to corrosion, low cost and electrically conductive. This research works is aimed to establish the effect of compounding parameter on the electrical conductivity of LDPE/Cu composites utilising the design of experiments (DOE). The CPCs was compounded using an internal mixer where all formulations were designed by statistical software. The scanning electron micrograph (SEM) revealed that the Cu conductive filler had a flake-like shape, and the electrical conductivity was found to be increased with increasing filler loading as measured using the four-point probe technique. The conductivity data obtained were then analysed by using the statistical software to establish the relationship between the compounding parameters and electrical conductivity where it was found based that the compounding parameters have had an effect on the conductivity of the CPC.

Cellulose-Based Hydrogels with Controllable Electrical and Mechanical Properties

2018 ◽  
Vol 232 (9-11) ◽  
pp. 1707-1716 ◽  
Author(s):  
Enwei Zhang ◽  
Jing Yang ◽  
Wei Liu
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Graphene Oxide ◽  
Artificial Muscle ◽  
Compressive Modulus ◽  
Electrically Conductive ◽  
Pure Cellulose ◽  
Reduced Graphene ◽  
Cellulose Hydrogel ◽  
Environmentally Friendly Method

Abstract Electrically conductive cellulose-based hydrogels are prepared by a facile and environmentally friendly method, of which the electrical and mechanical properties can be easily controlled by varying the graphene loading. With an ultralow initial addition of graphene oxide (GO, 0.2 wt% versus the mass of cellulose), the resulting cellulose/reduced graphene oxide (CG0.2) hydrogel shows a significantly enhanced compressive modulus of 332.01 kPa, 54.8% higher than that of pure cellulose hydrogel. Further increasing the addition of GO to 2 wt% (versus the mass of cellulose), the electrical conductivity of the resultant CG2.0 hydrogel is as high as 7.3×10−3 S/m, 10,000-fold higher than that of pure cellulose hydrogel, and of which the mechanical properties are also enhanced. These cellulose-based hydrogels with controllable electrical and mechanical properties have a great potential for application in drug delivery and artificial muscle.

scholarly journals Extrusion Process of Polypropylene Composites Reinforced Milled Carbon Fibre for Conductive Polymer Composite Application

2018 ◽  
Vol 248 ◽  
pp. 01012 ◽  
Author(s):  
Nabilah Afiqah Mohd Radzuan ◽  
Abu Bakar Sulong ◽  
Mahendra Rao Somalu
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Carbon Fibre ◽  
Extrusion Direction ◽  
Conductive Polymer ◽  
Extrusion Process ◽  
Polypropylene Composites ◽  
Conductive Polymer Composites ◽  
Parallel Direction ◽  
Low Shear

A polypropylene (PP) reinforced milled carbon fibre (MCF) was developed to produce high conductive polymer composites. Theoretically, by altering the filler orientation, the electrical conductivity and mechanical properties can be controlled. However, the orientation techniques which influence the MCF fibre are difficult to performed. Therefore, this study focused on controlling the filler orientation through the extrusion process. Hence, the extrusion temperature of 230°C and rotational speed of 50 rpm at 70 wt.% of MCF and 30 wt.% of PP were used. The electrical conductivity in perpendicular to the extrusion direction was higher at 2.0 S/cm as compared to 0.66 S/cm in the parallel direction. Besides, the extruded composite of rod and sheet were studied in which rod dies offers higher electrical conductivity of 3.0 S/cm and better mechanical properties of 1225 MPa than the sheet dies. Alteration in filler orientation aid in enhancing the electrical conductivity as minimum fillers breakage occurred due to the low shear rate of 2.2 s-1 which indirectly induces the filler to the desired orientation. Therefore, the extrusion process able to improve the electrical conductivity and mechanical properties of composite materials, as the filler oriented perpendicular to extrusion direction.

scholarly journals Preparation and Characterization of Epoxy Resin Filled with Ti3C2Tx MXene Nanosheets with Excellent Electric Conductivity

Nanomaterials ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 162 ◽  
Author(s):  
Ailing Feng ◽  
Tianqi Hou ◽  
Zirui Jia ◽  
Yi Zhang ◽  
Fan Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Epoxy Resin ◽  
Electric Conductivity ◽  
Mechanical Performance ◽  
Conductive Adhesive ◽  
Electrically Conductive ◽  
Solution Blending ◽  
Electrically Conductive Adhesive ◽  
And Performance

MXene represents new kinds of two-dimensional material transition metal carbides and/or carbonitrides, which have attracted much attention in various applications including electrochemical storage devices, catalysts, and polymer composite. Here, we report a facile method to synthesize Ti3C2Tx MXene nanosheets and prepare a novel electrically conductive adhesive based on epoxy resin filled with Ti3C2Tx MXene nanosheets by solution blending. The structure, morphology, and performance of Ti3C2Tx MXene nanosheets and epoxy/Ti3C2Tx MXene nanosheets composite were investigated. The results show that Ti3C2Tx MXene possesses nanosheet structure. Ti3C2Tx MXene nanosheets were homogeneously dispersed in epoxy resin. Electrical conductivity and mechanical properties measurements reveal that the epoxy/Ti3C2Tx MXene nanosheet composite exhibited both good electrical conductivity (4.52 × 10−4 S/m) and favorable mechanical properties (tensile strength of 66.2 MPa and impact strength of 24.2 kJ/m2) when the content of Ti3C2Tx MXene nanosheets is 1.2 wt %. Thus, Ti3C2Tx MXene is a promising filler for electrically conductive adhesive with high electric conductivity and high mechanical performance.

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