scholarly journals CHANGES IN PHYSICAL PROPERTIES OF SUPER LONG CARBON NANOTUBES AFTER DIFFERENT METHODS OF PURIFICATION

2018 ◽  
Vol 59 (9) ◽  
pp. 74 ◽  
Author(s):  
Ekaterina A. Ageeva ◽  
Ekaterina A. Zhukova ◽  
Aida R. Karaeva ◽  
Vladimir Z. Mordkovich
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Raman Spectroscopy ◽  
Physical Properties ◽  
Residual Impurities

The results of carbon nanotubes purification with various methods are presented. Methods providing residual impurities content less than 1% were revealed. Carbon nanotubes were investigated by Raman spectroscopy, TEM, SEM and TGA. Their electrical conductivity was measured as well.

scholarly journals Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing

2021 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Varun Shenoy Gangoli ◽  
Chris J. Barnett ◽  
James D. McGettrick ◽  
Alvin Orbaek White ◽  
Andrew R. Barron
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Raman Spectroscopy ◽  
Photoelectron Spectroscopy ◽  
Separate Analysis ◽  
Sweet Spot ◽  
Electrical Conductor ◽  
X Ray ◽  
Resonant Raman ◽  
Carbon Nanotube Fibers

We report the effect of annealing, both electrical and by applied voltage, on the electrical conductivity of fibers spun from carbon nanotubes (CNTs). Commercial CNT fibers were used as part of a larger goal to better understand the factors that go into making a better electrical conductor from CNT fibers. A study of thermal annealing in a vacuum up to 800 °C was performed on smaller fiber sections along with a separate analysis of voltage annealing up to 7 VDC; both exhibited a sweet spot in the process as determined by a combination of a two-point probe measurement with a nanoprobe, resonant Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Scaled-up tests were then performed in order to translate these results into bulk samples inside a tube furnace, with similar results that indicate the potential for an optimized method of achieving a better conductor sample made from CNT fibers. The results also help to determine the surface effects that need to be overcome in order to achieve this.

Fabrication of Polymeric Composite Nanostructures Containing Ferritin Nanoparticles and Carbon Nanotubes

2006 ◽  
Vol 921 ◽  
Author(s):  
Min Kyoon Shin ◽  
Sang Jun Park ◽  
Seong Gil Yoon ◽  
Chang Kee Lee ◽  
Kwang Min Shin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Elastic Modulus ◽  
Physical Properties ◽  
Composite Nanofibers ◽  
Polymeric Composite ◽  
Artificial Muscles ◽  
Multiwalled Carbon ◽  
Excess Carbon ◽  
Polymeric Nanofibers

AbstractComposite nanofibers including ferritin nanoparticles or multiwalled carbon nanotubes (MWCNTs) were fabricated to enhance the physical properties of the nanofibers, such as the elastic modulus and electrical conductivity. The ferritin was homogeneously incorporated in the polymeric nanofibers, but excess carbon nanotubes (CNTs) added to the polymer solution resulted in the fabrication of composite nanofibers with rough surfaces. PVA/ferritin/CNT composite nanofibers were fabricated that had smooth surfaces, and had a good dispersion of ferritin and CNTs. These composite nanofibers are applicable to artificial muscles requiring enhanced physical properties.

Enhanced Electrical Properties of PVDF-TrFE Nanocomposite for Actuator Application

2014 ◽  
Vol 605 ◽  
pp. 335-339 ◽  
Author(s):  
Kie Yong Cho ◽  
A Ra Cho ◽  
Yun Jae Lee ◽  
Chong Min Koo ◽  
Soon Man Hong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Raman Spectroscopy ◽  
Electrical Properties ◽  
Polymer Nanocomposites ◽  
Casting Process ◽  
Polymer Nanocomposite ◽  
Solution Casting ◽  
Electromechanical Properties ◽  
Actuator Application

Carbon nanotubes (CNTs) coated by compatibilizer (P3HT-PMMA) imparted sta-ble dispersion in organic solvents and polymer matrix (P(VDF-TrFE)). The compatibility be-tween CNTs with P3HT-PMMA was con rmed by measuring Raman spectroscopy. CoatedCNTs were then blended with P(VDF-TrFE) (70:30 mol%) to obtain polymer nanocompositesby solution- casting process. Polymer nanocomposites showed enhanced electrical characteris-tics, as nanocomposites near the threshold of the transition between P(VDF-TrFE) insulatorand CNT conductor revealed great improvement of electrical conductivity up to 10-6 S/cmat 1 KHz. Electromechanical properties of the polymer nanocomposite were examined as afunction of electric eld.

ELECTRAFIL G-50/SS/5

Alloy Digest ◽  
1991 ◽  
Vol 40 (1) ◽  
Keyword(s):  
Electrical Conductivity ◽  
Fracture Toughness ◽  
Stainless Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Steel Fibers ◽  
Engineering Plastics ◽  
Shielding Material

Abstract ELECTRAFIL G-50/SS/5 provides good electrical conductivity at a low loading of stainless steel fibers. It is useful as a shielding material and for current carrying parts. This datasheet provides information on physical properties, and tensile properties as well as fracture toughness. Filing Code: Cp-13. Producer or source: AKZO Engineering Plastics.

COPPER ALLOY No. 120

Alloy Digest ◽  
1972 ◽  
Vol 21 (12) ◽  
Keyword(s):  
Electrical Conductivity ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
Heat Treating ◽  
Residual Phosphorus ◽  
Low Level

Abstract COPPER No. 120 is a phosphorus deoxidized copper in which the residual phosphorus is maintained at a low level to acheive a good electrical conductivity. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-263. Producer or source: Copper and copper alloy mills.

COPPER ALLOY No. 314

Alloy Digest ◽  
1978 ◽  
Vol 27 (7) ◽  
Keyword(s):  
Electrical Conductivity ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Physical Properties ◽  
Copper Alloy ◽  
Heat Treating ◽  
Lead Alloy ◽  
Screw Machine ◽  
Copper Zinc ◽  
Machine Parts

Abstract Copper Alloy No. 314 is a copper-zinc-lead alloy with moderate strength and good ductility. It has good electrical conductivity, excellent machinability and a rich bronze color. Its uses include electrical connectors, screw-machine parts and builders' hardware. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-357. Producer or source: Brass mills.

COPPER ALLOY No. 815

Alloy Digest ◽  
1977 ◽  
Vol 26 (5) ◽  
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Copper Alloy ◽  
Heat Treating ◽  
Chromium Alloy ◽  
High Electrical Conductivity ◽  
Medium Hardness ◽  
Hardened Condition

Abstract Copper Alloy No. 815 is an age-hardenable cast copper-chromium alloy. It is characterized by high electrical and thermal conductivities combined with medium hardness and strength in the age-hardened condition. It is used for components requiring high electrical conductivity or high thermal conductivity. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-332. Producer or source: Copper alloy foundries.

MILLER MHP 101

Alloy Digest ◽  
2003 ◽  
Vol 52 (8) ◽  
Keyword(s):  
Electrical Conductivity ◽  
Physical Properties ◽  
Tensile Properties ◽  
Cold Working ◽  
Heat Treating ◽  
Relaxation Resistance

Abstract Miller alloy MHP 101 has excellent cold working properties. The alloy is used for its combination of strength, relaxation resistance, electrical conductivity, and good formability. It is used as connectors and springs. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on forming, heat treating, and joining. Filing Code: CU-706. Producer or source: The Miller Company.

WIELAND-M15

Alloy Digest ◽  
2002 ◽  
Vol 51 (12) ◽  
Keyword(s):  
Electrical Conductivity ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Zinc Alloy ◽  
Bend Strength ◽  
Red Color ◽  
Copper Zinc

Abstract Wieland-M15 is copper-zinc alloy with good electrical conductivity and a red color useful in decorative applications. The alloy has also been called red brass, 85%, and CA 230. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: CU-694. Producer or source: Wieland Metals Inc., Wieland-Werke AG.

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