Effect of processing technique on the dispersion of carbon nanotubes within polypropylene carbon nanotube-composites and its effect on their mechanical properties

2009 ◽  
pp. NA-NA ◽  
Author(s):  
Amal M.K. Esawi ◽  
Hanadi G. Salem ◽  
Hanady M. Hussein ◽  
Adham R. Ramadan
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Processing Technique ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites

Effect of Reprocessing on the Rheological, Electrical and Mechanical Properties of Polypropylene/Carbon Nanotube Composites

2016 ◽  
Author(s):  
Felicia Stan ◽  
Laurentiu Ionut Sandu ◽  
Catalin Fetecau ◽  
Razvan Train Rosculet
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Injection Molding ◽  
Young Modulus ◽  
Mechanical Recycling ◽  
Nanotube Composites ◽  
Multi Walled Carbon Nanotubes ◽  
Carbon Nanotube Composites ◽  
Plastic Parts

In the near future, carbon nanotubes containing plastic parts are likely to enter the environment in large quantities and, due to their resistance to degradation, the environmental impact may be even more important than that of similarly shaped plastic products. Thus, there is an immediate need to examine and understand the effect of recycling on the properties of polymer/carbon nanotube composites in order to develop sustainable recycling technologies. In this paper, polypropylene filled with different levels of multi-walled carbon nanotubes (MWCNTs) manufactured by injection molding was closed-loop recycled in order to investigate the effect of recycling and reprocessing on its rheological, electrical and mechanical properties. Preliminary results show that the PP/MWCNT composites keep the flow performance after mechanical recycling. Moreover, the stress and strain at break increase after one reprocessing cycle (mechanical recycling coupled with injection molding) whereas no statistically significant changes in electrical conductivity, Young modulus and tensile strength of the PP/MWCNT composites filled with 1, 3 and 5 wt.% were observed.

Influence of different carbon nanotubes on the electrical and mechanical properties of melt mixed poly(ether sulfone)-multi walled carbon nanotube composites

2012 ◽  
Vol 72 (15) ◽  
pp. 1933-1940 ◽  
Author(s):  
Sourav Chakraborty ◽  
Jürgen Pionteck ◽  
Beate Krause ◽  
Susanta Banerjee ◽  
Brigitte Voit
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Multi Walled Carbon Nanotube ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites

Structure of Polymer – Multiwall Carbon Nanotube Composites

2012 ◽  
Vol 504-506 ◽  
pp. 1151-1156
Author(s):  
Andrea Adamne Major ◽  
Károly Belina
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Multiwall Carbon Nanotube ◽  
Nonisothermal Crystallization ◽  
Polypropylene Nanocomposites ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Multiwall Carbon ◽  
Concentration Series

In the last ten years carbon nanotube composites are in the focus of the researchers. Different composition of carbon nanotubes and polymers were produced by IDMX mixer. In the experiments polypropylene, polycarbonate and ABS polymers were used as matrix materials. Nanotube master batches were used to prepare different compositions. Concentration series were manufactured by the dynamic mixer. The prepared materials were characterised by scanning electron microscopy. The carbon nanotubes can be seen on the fractured surfaces. We did not find any sign of agglomerates in the materials. During the investigation of isothermal and nonisothermal crystallization of polypropylene nanocomposites it was shown that the carbon nanotube has nucleating effect on polypropylene. Mechanical properties were determined. It was found that the mechanical properties of the nanocomposites decreased. The flammability of the composites is significantly smaller than the original polymers. Polypropylene nanotube composites above 4% nanotube content were not dripping. It is most probable due to some kind of network structure of the material. We assume that the carbon nanotube creates a physical network in the polymers.

Surface decoration of carbon nanotubes and mechanical properties of cement/carbon nanotube composites

2008 ◽  
Vol 20 (2) ◽  
pp. 65-73 ◽  
Author(s):  
A. Cwirzen ◽  
K. Habermehl-Cwirzen ◽  
V. Penttala
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Nanotube Composites ◽  
Surface Decoration ◽  
Carbon Nanotube Composites

Neuron-like polyelectrolyte–carbon nanotube composites for ultra-high loading of metal nanoparticles

2014 ◽  
Vol 38 (10) ◽  
pp. 4799-4806 ◽  
Author(s):  
Md. Shahinul Islam ◽  
Won San Choi ◽  
Tae Sung Bae ◽  
Young Boo Lee ◽  
Ha-Jin Lee
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Metal Nanoparticles ◽  
Multiwalled Carbon Nanotubes ◽  
High Loading ◽  
Multiwalled Carbon ◽  
Simple Protocol ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites

We report a simple protocol for the fabrication of multiwalled carbon nanotubes (MWCNTs) with a neuron-like structure for loading ultra-high densities of metal nanoparticles (NPs).

Relations between the aspect ratio of carbon nanotubes and the formation of percolation networks in biodegradable polylactide/carbon nanotube composites

2010 ◽  
Vol 48 (4) ◽  
pp. 479-489 ◽  
Author(s):  
Defeng Wu ◽  
Liang Wu ◽  
Weidong Zhou ◽  
Yurong Sun ◽  
Ming Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Aspect Ratio ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites

Magnesium and Aluminium Carbon Nanotube Composites

2010 ◽  
Vol 425 ◽  
pp. 245-261 ◽  
Author(s):  
C.S. Goh ◽  
Manoj Gupta ◽  
Anders W.E. Jarfors ◽  
Ming Jen Tan ◽  
J. Wei
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Detrimental Effect ◽  
Industrial Applications ◽  
Nanosized Materials ◽  
Nanotube Composites ◽  
Slip Planes ◽  
Carbon Nanotube Composites ◽  
Hcp Structure ◽  
Strength And Stiffness

Carbon nanotubes are one of the most exciting discoveries of nanosized materials in the 20th century. Challenges to create materials applicable for industrial applications involve both the incorporation of the carbon nanotubes into the material and to ensure that they do not agglomerate. Aluminium and magnesium based materials are among the metals that can benefit from the incorporation of carbon nanotubes. The fabrication of Aluminium carbon nanotube composites has challenges from reactivity and degradation of the carbon nanotube additions; hence the powder metallurgy route is preferred. Magnesium based materials on the other hand do not have this limitation and both the powder metallurgical route and the casting route are viable. Among the benefits of adding carbon nanotubes are increased yield strength and stiffness. Here is important that the effect is significant already at very low addition levels. This makes it possible to increase strength without having a significant detrimental effect on ductility. In fact, for magnesium alloys ductility can be improved due to the activation of additional slip planes improving the normally low ductility of HCP structure materials.

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