scholarly journals Carbon black functionalized stretchable conductive fabrics for wearable heating applications

RSC Advances ◽  
2017 ◽  
Vol 7 (31) ◽  
pp. 19174-19180 ◽  
Author(s):  
Lakshitha R. Pahalagedara ◽  
Induni W. Siriwardane ◽  
Nadeeka D. Tissera ◽  
Ruchira N. Wijesena ◽  
K. M. Nalin de Silva
Keyword(s):  
Carbon Black ◽  
Light Weight ◽  
Wearable Electronics ◽  
Electrically Conductive

There is an increasing interest on robust electrically conductive textiles with light weight and flexibility to meet the applications in wearable electronics.

Investigate of Electrical Conductivity of Shape-Memory Polymer Filled with Carbon Black

2008 ◽  
Vol 47-50 ◽  
pp. 714-717 ◽  
Author(s):  
Xin Lan ◽  
Jin Song Leng ◽  
Yan Ju Liu ◽  
Shan Yi Du
Keyword(s):  
Electrical Conductivity ◽  
Carbon Black ◽  
Shape Memory ◽  
Shape Recovery ◽  
Volume Fraction ◽  
Shape Memory Polymer ◽  
Recovery Process ◽  
Thermomechanical Properties ◽  
Electrically Conductive ◽  
New System

A new system of thermoset styrene-based shape-memory polymer (SMP) filled with carbon black (CB) is investigated. To realize the electroactive stimuli of SMP, the electrical conductivity of SMP filled with various amounts of CB is characterized. The percolation threshold of electrically conductive SMP filled with CB is about 3% (volume fraction of CB), which is much lower than many other electrically conductive polymers. When applying a voltage of 30V, the shape recovery process of SMP/CB(10 vol%) can be realized in about 100s. In addition, the thermomechanical properties are also characterized by differential scanning calorimetery (DSC).

scholarly journals Polyamide 12/Multiwalled Carbon Nanotube and Carbon Black Nanocomposites Manufactured by 3D Printing Fused Filament Fabrication: A Comparison of the Electrical, Thermoelectric, and Mechanical Properties

2021 ◽  
Vol 7 (2) ◽  
pp. 38
Author(s):  
Nectarios Vidakis ◽  
Markos Petousis ◽  
Lazaros Tzounis ◽  
Emmanuel Velidakis ◽  
Nikolaos Mountakis ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
3D Printing ◽  
Carbon Black ◽  
Large Scale ◽  
Fracture Mechanisms ◽  
Fused Filament Fabrication ◽  
Melt Mixing ◽  
Multiwalled Carbon ◽  
Electrically Conductive ◽  
Polyamide 12

In this study, nanocomposites with polyamide 12 (PA12) as the polymer matrix and multiwalled carbon nanotubes (MWCNTs) and carbon black (CB) at different loadings (2.5, 5.0, and 10.0 wt.%) as fillers, were produced in 3D printing filament form by melt mixing extrusion process. The filament was then used to build specimens with the fused filament fabrication (FFF) three-dimensional (3D) printing process. The aim was to produce by FFF 3D printing, electrically conductive and thermoelectric functional specimens with enhanced mechanical properties. All nanocomposites’ samples were electrically conductive at filler loadings above the electrical percolation threshold. The highest thermoelectric performance was obtained for the PA12/CNT nanocomposite at 10.0 wt.%. The static tensile and flexural mechanical properties, as well as the Charpy’s impact and Vickers microhardness, were determined. The highest improvement in mechanical properties was observed for the PA12/CNT nanocomposites at 5.0 wt.% filler loading. The fracture mechanisms were identified by fractographic analyses of scanning electron microscopy (SEM) images acquired from fractured surfaces of tensile tested specimens. The nanocomposites produced could find a variety of applications such as; 3D-printed organic thermoelectric materials for plausible large-scale thermal energy harvesting applications, resistors for flexible circuitry, and piezoresistive sensors for strain sensing.

scholarly journals Nano Carbon Black-Based High Performance Wearable Pressure Sensors

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 664 ◽  
Author(s):  
Junsong Hu ◽  
Junsheng Yu ◽  
Ying Li ◽  
Xiaoqing Liao ◽  
Xingwu Yan ◽  
...  
Keyword(s):  
Carbon Black ◽  
Pressure Sensor ◽  
High Performance ◽  
Large Scale ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Wearable Electronics ◽  
Atmospheric Pollutant ◽  
Piezoresistive Pressure Sensor ◽  
Nano Carbon

The reasonable design pattern of flexible pressure sensors with excellent performance and prominent features including high sensitivity and a relatively wide workable linear range has attracted significant attention owing to their potential application in the advanced wearable electronics and artificial intelligence fields. Herein, nano carbon black from kerosene soot, an atmospheric pollutant generated during the insufficient burning of hydrocarbon fuels, was utilized as the conductive material with a bottom interdigitated textile electrode screen printed using silver paste to construct a piezoresistive pressure sensor with prominent performance. Owing to the distinct loose porous structure, the lumpy surface roughness of the fabric electrodes, and the softness of polydimethylsiloxane, the piezoresistive pressure sensor exhibited superior detection performance, including high sensitivity (31.63 kPa−1 within the range of 0–2 kPa), a relatively large feasible range (0–15 kPa), a low detection limit (2.26 pa), and a rapid response time (15 ms). Thus, these sensors act as outstanding candidates for detecting the human physiological signal and large-scale limb movement, showing their broad range of application prospects in the advanced wearable electronics field.

Processing and Properties of Liquid Rubbers

1973 ◽  
Vol 46 (1) ◽  
pp. 148-160 ◽  
Author(s):  
R. T. Humpidge ◽  
D. Matthews ◽  
S. H. Morrell ◽  
J. R. Pyne
Keyword(s):  
Carbon Black ◽  
Injection Molding ◽  
Light Weight ◽  
Textile Fibers

Abstract Difficulties of compounding liquid rubbers are discussed and detailed descriptions are given of mixers for the adequate continuous dispersion of carbon black and of light-weight injection molding machines suitable for the pastes which result; some of the problems of injection molding are outlined and suggested solutions given. The reinforcement of liquid rubbers with textile fibers is discussed and suggestions proposed for the layout of a factory suitable for the processing of liquid rubbers.

Fabrication of electrically conductive substrates using copper nanoparticles-deposited carbon black

2016 ◽  
Vol 51 (18) ◽  
pp. 2597-2605 ◽  
Author(s):  
Yongchan Lim ◽  
Changhee Lee ◽  
Hayoung Choi ◽  
Jinyoung Bae
Keyword(s):  
Carbon Black ◽  
Copper Nanoparticles ◽  
Weight Ratio ◽  
Palladium Chloride ◽  
Electrically Conductive ◽  
Plating Bath ◽  
Weight Percentage ◽  
Plating Method ◽  
Conductive Substrates ◽  
Cu Ions

Carbon black particles surrounded by copper nanoparticles (Cu NPs) were synthesized using electroless plating method. Palladium chloride was adsorbed onto carbon black, followed by the reduction of palladium chloride for catalyzing the reduction of Cu ions on the surface of carbon black particles. After that, carbon black particles doped by palladium catalyst were dispersed and stirred in Cu plating bath. Cu ions being reduced, Cu NPs surrounded the surface of carbon black particles (Cu@CB). The ratios of Cu to carbon black were controlled through variation of weight of Cu ions in Cu plating bath from 1:1 to 1:7. Cu@CB was applied to electrically conductive substrates with ethyl cellulose binder. Electrical properties and morphology were measured and compared with different weight ratio of Cu and carbon black. It was found that when weight ratio of Cu to carbon black was above three, resistivity of conductive substrates fabricated decreased dramatically. Lowest resistivity was 5.93 × 10−4 Ωcm, confirming the advantages of Cu@CB which has possibility of lowering weight percentage of metal in conductive substrates through simple process.

Electrical Conductivity of High Impact Polystyrene/Liquid Crystalline Polymer/ Carbon Black Ternary Systems

2002 ◽  
Vol 725 ◽  
Author(s):  
Roza Tchoudakov ◽  
Ester Segal ◽  
Moshe Narkis ◽  
Arnon Siegmann
Keyword(s):  
Carbon Black ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Ternary Systems ◽  
Crystalline Polymer ◽  
High Impact ◽  
Melt Flow ◽  
Immiscible Polymer Blends ◽  
Electrically Conductive ◽  
High Impact Polystyrene

AbstractElectrically conductive immiscible polymer blends containing high impact polystyrene (HIPS), liquid crystalline polymer (LCP) and a low content of conductive carbon black (CB) were studied to establish and understand the correlation between composition, electrical properties and the morphology of filaments produced at different melt flow conditions. The HIPS/LCP/CB blend containing 30% LCP and at least 2 phr CB reveals a stable resisitivity throughout the shear rate range applied in a capillary rheometer. Interesting structure alterations were observed for the LCP and CB components as a result of melt flow processing. Unusual sensing properties of liquids were found for the blends containing LCP.

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