Impact of synthesis conditions on the electric conductivity of oriented and doped polyacetylene

Skanderi, Z.; Djebaili, A.; Bouzaher, Y.; Belloum, M.; Abadie, M. J. M.

doi:10.1016/j.compositesa.2004.10.013

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…2 Conductive polymers are generally divided into two types. The first type is the molecular chain of the polymer, which has a conductive chemical structure, making the polymer conductive, such as polyacetylene 3,4 and polyanilene. 5,6 The second type is conductive stuffing, which is added to an insulating polymer, creating a conductive polymer.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetically shielding composite made from carbon fibers, glass fibers, and impact-resistant polypropylene

Cui

Lou

Huang

et al. 2013

Journal of Thermoplastic Composite Materials

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In order to create polymer composites that can shield machine and instrument casings from electromagnetism and to reclaim waste material, this study melt-blended impactresistant polypropylene (PP) chips, carbon fibers (CFs; 5, 10, 15, or 20 wt%), and glass fibers (GFs; 0, 5, 7 wt%). This process used a single-screw extruder to make electrically conductive composites. The resulting composites were then evaluated in terms of mechanical properties, electromagnetic shielding effectiveness (EMSE), and surface resistivity. According to experimental results, an increase in CF content increased PP/CF composites' tensile strength to 29.31 MPa and flexural strength to 38.93 MPa but decreased the impact strength to 49.04 MPa. When the CFs were increased to

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Section: Introductionmentioning

confidence: 99%

Electromagnetically shielding composite made from carbon fibers, glass fibers, and impact-resistant polypropylene

Cui

Lou

Huang

et al. 2013

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

show abstract

“…In general, polymer can be rendered with electrical conductivity by two ways. One is to graft the chemical structure of conductive polymer, such as grafting polyacetylene [5] and polyanilene [6,7] to the polymer chains of the insulating polymer. The other is to add conductive stuffing like carbon black to the insulating polymer.…”

Section: Introductionmentioning

confidence: 99%

Recycling technique and characteristic evaluation of organic/inorganic composite boards

Cui

Lin

2012

Journal of Industrial Textiles

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Nylon 6, one of the major engineering plastic and synthesized fibers, has the following features: good mechanical property, impact resistance, melt flow, and workability. Thus, it is widely used for auto parts, electronic parts, packing films, textiles, etc.; however, plastic waste from processing nylon 6 has also garnered negative attention. This research plans to simulate recycling and reclamation by multiple melt-blending cycles. Only nylon 6, both nylon 6 and carbon fibers, and both nylon 6 and glass fibers are separately melt-blended for 1-10 times with a screw extractor and an injection molding machine, after which the resulting boards-the nylon 6 boards, the nylon 6/carbon fiber boards, and the nylon 6/ glass fiber boards-are evaluated for their mechanical properties. According to the experimental results, the nylon 6/carbon fiber boards exhibit an electromagnetic shielding effectiveness above 20 dB; namely it is able to block 90% of electromagnetic waves. Finally, in terms of the mechanical property analysis, the addition of reinforced fibers contributes greater flexibility and impact resistance to the resulting composite boards.

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“…Polypyrrole have attracted much interest worldwide due to its easy preparation, environmentally stable and has high electrical conductivity [4]. Scientist have discover around many years ago about the ability of conjugated polymer called polyacetylene [5] to conducts electrically after undergoing a structural modification process called doping [6]. The electrical conductivity of these polymers is between 10 -5 S/cm and 10 2 S/cm while doped, whereas common insulators exhibit conductivities below 10 -12 S/cm [7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Composite Polypyrrole-Vanadium Oxide (PPy/V2O5)

Rahman¹,

Kudin²,

Ali³

et al. 2011

JMSE-B

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Conducting polymer attracts broad attention to researchers due to their good properties such as high environmental friendly, thermal and chemical stability as well as high conductivity. There are widely use in potential components of optical storage, sensors, batteries, supercapacitor and so on. In this work, polypyrrole was synthesized using chemical oxidation polymerization technique which involves FeCl 3 and nanoparticle vanadium oxide (V 2 O 5). The composite PPy/V 2 O 5 has been synthesized under 0 °C with variation weight percentage of nanoparticle V 2 O 5 from 10% to 50% with increment of 10%. The properties of composites have been characterized by x-ray diffraction (XRD) and Field Scanning Electron Microscopy (FESEM). The ac conductivity has been carried out under frequency range of 100 Hz to 1 MHz over temperature 273 K to 393 K. It is observed that the ac conductivity of composite increass steeply after frequency of 105 Hz. The composite PPy-V 2 O 5 has shown the larger d-spacing compared to pure PPy and FESEM shows the spongy-like graph of pure polypyrrole than composite PPy/V 2 O 5 .

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Impact of synthesis conditions on the electric conductivity of oriented and doped polyacetylene

Cited by 6 publications

References 7 publications

Electromagnetically shielding composite made from carbon fibers, glass fibers, and impact-resistant polypropylene

Electromagnetically shielding composite made from carbon fibers, glass fibers, and impact-resistant polypropylene

Recycling technique and characteristic evaluation of organic/inorganic composite boards

Synthesis and Characterization of Composite Polypyrrole-Vanadium Oxide (PPy/V2O5)

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