Electrical Properties of Electrospun Nanofibers of PEO/Carbon Black Composite

2009 ◽  
Vol 151 ◽  
pp. 67-71 ◽  
Author(s):  
Wai Kit Li ◽  
Y.W. Wong
Keyword(s):  
Electrical Properties ◽  
Carbon Black ◽  
Polyethylene Oxide ◽  
Electrospun Nanofibers ◽  
Angular Speed ◽  
Polymer Fibers ◽  
Fiber Direction ◽  
Fiber Morphology ◽  
Polarized Ftir ◽  
Specific Orientation

Electrospinning is an efficient technique for the fabrication of polymer nanofibers. The charges inside the polymer jet tend to repel each other so as to stretch and reduce the diameter of the polymer fibers. By rotating the collector at a fast angular speed, nanofibers with specific orientation can be obtained. In this study, nanofibers of Polyethylene oxide (PEO) with carbon black were prepared by electrospinning. PEO was dissolved in a mixture of water and ethanol. PEO is known as an electrolytic polymer. With the blending of carbon black powders, its electrical properties along the fiber direction were investigated. The fiber morphology and characteristics were studied by SEM and polarized FTIR.

Effect of the mold temperature on the electrical properties of carbon-black-loaded polystyrene/SB block copolymer blends

1998 ◽  
Vol 69 (4) ◽  
pp. 825-833 ◽  
Author(s):  
Bluma G. Soares ◽  
Katia M. N. Gamboa ◽  
Angelo J. B. Ferreira ◽  
Edson Ueti ◽  
Sergio S. Camargo
Keyword(s):  
Block Copolymer ◽  
Electrical Properties ◽  
Carbon Black ◽  
Mold Temperature ◽  
Copolymer Blends

Development of novel hybrid materials from polylactic acid and nano-silver coated carbon black with distinct antimicrobial and electrical properties

2018 ◽  
Vol 25 (4) ◽  
Author(s):  
Nollapan Nootsuwan ◽  
Worawat Wattanathana ◽  
Suchada Jongrungruangchok ◽  
Chatchai Veranitisagul ◽  
Nattamon Koonsaeng ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Carbon Black ◽  
Polylactic Acid ◽  
Hybrid Materials ◽  
Nano Silver ◽  
Coated Carbon

scholarly journals Solvent Effects on Morphology and Electrical Properties of Poly(3-hexylthiophene) Electrospun Nanofibers

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1501 ◽  
Author(s):  
Jung-Yao Chen ◽  
Chien-You Su ◽  
Chau-Hsien Hsu ◽  
Yi-Hua Zhang ◽  
Qin-Cheng Zhang ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Field Effect Transistors ◽  
Electrospun Nanofibers ◽  
Charge Carrier Mobility ◽  
Organic Field Effect Transistors ◽  
Electrospun Nanofiber ◽  
X Ray Diffraction ◽  
Electrospinning Technique ◽  
The Core ◽  
Core Polymer

Herein, poly(3-hexylthiophene-2,5-diyl) (P3HT) nanofiber-based organic field-effect transistors were successfully prepared by coaxial electrospinning technique with P3HT as the core polymer and poly(methyl methacrylate) (PMMA) as the shell polymer, followed by extraction of PMMA. Three different solvents for the core polymer, including chloroform, chlorobenzene and 1,2,4-trichlorobenzene, were employed to manipulate the morphologies and electrical properties of P3HT electrospun nanofibers. Through the analyses from dynamic light scattering of P3HT solutions, polarized photoluminescence and X-ray diffraction pattern of P3HT electrospun nanofibers, it is revealed that the P3HT electrospun nanofiber prepared from the chloroform system displays a low crystallinity but highly oriented crystalline grains due to the dominant population of isolated-chain species in solution that greatly facilitates P3HT chain stretching during electrospinning. The resulting high charge-carrier mobility of 3.57 × 10−1 cm2·V−1·s−1 and decent mechanical deformation up to a strain of 80% make the P3HT electrospun nanofiber a promising means for fabricating stretchable optoelectronic devices.

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.

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