scholarly journals The Effect of Oxygen-Plasma Treated Graphene Nanoplatelets upon the Properties of Multiwalled Carbon Nanotube and Polycarbonate Hybrid Nanocomposites Used for Electrostatic Dissipative Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Akkachai Poosala ◽  
Kittipong Hrimchum ◽  
Darunee Aussawasathien ◽  
Duanghathai Pentrakoon
Keyword(s):  
Glass Transition ◽  
Carbon Nanotube ◽  
Oxygen Plasma ◽  
Research Work ◽  
Melt Flow Index ◽  
Multiwalled Carbon Nanotube ◽  
Hybrid Nanocomposites ◽  
Flow Index ◽  
Multiwalled Carbon ◽  
Decay Times

Oxygen-plasma treated graphene nanoplatelet (OGNP), multiwalled carbon nanotube (MWCNT) and polycarbonate (PC) hybrid nanocomposites were prepared via a melting process using a twin-screw extruder. The contents of the OGNPs were in the range of 0.0 to 5.0 parts per hundred resin (phr), whilst the dosage of MWCNTs was kept at a constant of 2.0 wt%. Nanocomposites containing 2.0 wt% of MWCNTs and mixtures of 2.0 wt% of MWCNTs at 1.5 to 5.0 phr of OGNPs had tribocharged voltages, surface resistivities, and decay times, all within the electrostatic discharge (ESD) specification. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) results revealed that the OGNPs slightly intercalated and distributed also within the PC matrix. The glass transition temperatureTgand heat capacity jump, at the glass transition stages of nanocomposite, slightly changed, as the contents of the OGNPs increased. The melt flow index (MFI) of nanocomposites significantly decreased when MWCNTs were added to the PC resin and slightly changed as the dosage of OGNPs was increased. Tensile Young’s modulus of nanocomposites tended to increase, as the elongation at break and impact strength decreased, when OGNP concentrations were increased. This research work exhibited that OGNP/MWCNT/PC hybrid nanocomposites do indeed have the potential to be used in ESD applications.

Oxygen-Plasma Treated Graphene Nanoplatelet/Multi-Walled Carbon Nanotube/Polycarbonate Hybrid Nanocomposites for Anti-Electrostatic Discharge Applications: Preparation and Properties

2014 ◽  
Vol 510 ◽  
pp. 63-72
Author(s):  
Poosala Akkachai ◽  
Hrimchum Kittipong ◽  
Aussawasathien Darunee ◽  
Pentrakoon Duanghathai
Keyword(s):  
Carbon Nanotube ◽  
Oxygen Plasma ◽  
Electrostatic Discharge ◽  
Melt Flow Index ◽  
Melting Process ◽  
Hybrid Nanocomposites ◽  
Flow Index ◽  
Graphene Nanoplatelet ◽  
Multi Walled Carbon Nanotube ◽  
Decay Times

Oxygen-plasma treated graphene nanoplatelet (OGNP)/multi-walled carbon nanotube (MWCNT)/polycarbonate (PC) hybrid nanocomposites were prepared via melting process using a twin screw extruder. The content of OGNPs was in the range of 0-5.0 part per hundred of resin (phr) whereas the dosage of MWCNTs was kept constant at 2.0 wt%. Nanocomposites containing 2.0 wt% of MWCNTs and 2.0 wt% of MWCNT/1.5-5.0 phr of OGNP had tribo-charge voltages, surface resistivities, and decay times in the electrostatic discharge (ESD) specification. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) results showed that OGNPs slightly intercalated and distributed in the PC matrix. The glass transition temperature (Tg) and decomposition temperature (Td) of nanocomposites slightly changed as the content of OGNPs increased. The melt flow index (MFI) of nanocomposites significantly decreased when MWCNTs were added into the PC resin and slightly changed as the dosage of OGNPs was increased.

Investigation of the Crack Propagation Behavior of the Multiwalled Carbon Nanotube/Graphite/Natural Rubber Hybrid Nanocomposites Using Digital Image Correlation Technique

2019 ◽  
Vol 14 (12) ◽  
pp. 1766-1770
Author(s):  
Hasan Kasim ◽  
Ahmad Naser Aldeen ◽  
Yücel Can ◽  
Murat Yazici
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Digital Image Correlation ◽  
Crack Propagation ◽  
Natural Rubber ◽  
Digital Image ◽  
Multiwalled Carbon Nanotube ◽  
Hybrid Nanocomposites ◽  
Image Correlation ◽  
Multiwalled Carbon

In the presented study, a hybrid Natural Rubber (NR) based semiconductive nanocomposites was examined to obtain better electrical and mechanical properties. The hybrid nanocomposite produced by incorporation of the Multiwalled Carbon Nanotube (MWCNT) and graphite nanoparticles into the NR. The conventional curing additives also included in the compound. A functionalized MWCNT (1, 2 and 3 phr's) with 3 phr graphite quotas were studied to produce the NR nanocomposites. The MWCNT/Graphite and NR mixed homogeneously to advance the interfacial interaction with the matrix. The graphite nano-particulates added to obtain 3D electrical connectivity network in the hybrid nanocomposites by becoming bridging points between multiwalled carbon nanotubes. Nanocomposites were produced as 3 mm sheets in a steel mold by vulcanizing at 165 °C for 10 min under pressure. The single-edge notched tension specimens were subjected to estimate crack propagation and electrical resistance relation. Digital Image Correlation (DIC) technique was used to observe the crack resistivity function. The results evaluated to clarify the relationship between crack length, MWCNT filler ratio, and electrical conductivity properties. MWCNTs are generally preferred as the reinforcements for their very high aspect ratio and excellent specific surface area properties. However, the electrical conductivity of the nanocomposites is owing to the constitution of a continuous conductive 3D network of MWCNT and Graphite in the NR matrix.

Retracted Article: Multiwalled carbon nanotube wrapped nanoflake graphene composites for sensitive biosensing of leviteracetum

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13462-13469 ◽  
Author(s):  
Jagriti Narang ◽  
Nitesh Malhotra ◽  
Nidhi Chauhan ◽  
C. S. Pundir
Keyword(s):  
Carbon Nanotube ◽  
Tin Oxide ◽  
Research Work ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Sensing Platform ◽  
Retracted Article ◽  
Fto Glass

Current research work presents the detection of leviteracetum by using nanoflakes of graphene (GNF) and multiwalled carbon nanotube (MWCNT) decorated on fluorine-doped tin oxide (FTO) glass as sensing platform.

Electrochemical non-enzymatic glucose sensors based on nano-composite of Co3O4 and multiwalled carbon nanotube

2019 ◽  
Vol 30 (6) ◽  
pp. 1157-1160 ◽  
Author(s):  
Xiaoyun Lin ◽  
Yanfang Wang ◽  
Miaomiao Zou ◽  
Tianxiang Lan ◽  
Yongnian Ni
Keyword(s):  
Carbon Nanotube ◽  
Glucose Sensors ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Nano Composite

Cobalt-polypyrrole-multiwalled carbon nanotube catalysts for hydrogen and alcohol fuel cells

Carbon ◽  
2008 ◽  
Vol 46 (1) ◽  
pp. 2-11 ◽  
Author(s):  
Arava Leela Mohana Reddy ◽  
Natarajan Rajalakshmi ◽  
Sundara Ramaprabhu
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Alcohol Fuel
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