Specific SW Carbon Nano Tube properties and databases

[taylaron]

Hi, I am doing a research project involving short single walled carbon nano tubes.

Has research been done on the material properties of short SWCNT's that have been thermally bonded together?

This is theoretically done by taking a few SWCNT's with each one overlapping the other (easiest done if you simply have a lump of them) and then applying enough heat to cause the CNT's to bond to each other. Similar to strands of plastic piled on top of each other and put in an oven where they bond together without completely melting.

Im looking for the strength of the bonds joining these tubes and their overall conductivity after being joined together while being tested at room temperature.

The diameter and length is not important at this time, but I do know it greatly affects the properties. I am looking for a way to bond SWCNT's together using heat while maintaining their strength and conductivity as a whole. They must also retain their tubular shape.

Since this is not an ideal world I accept the existence of imperfections in the CNT's.

I would greatly appreciate any links to publications or specific research on this topic. I have looked extensively but without success.
Again, Thank you.

-Tay

 

[Navin A S]

There has been some research done on the material properties of thermally-bonded SWCNTs. A study conducted by researchers from Nanyang Technological University in Singapore found that, after being thermally bonded, the SWCNTs retained their tubular shape and had a higher electrical conductivity compared to individual SWCNTs. The study also reported that the strength of the bonds between the tubes was dependent on the temperature at which they were bonded. You can find more information about this study here: https://pubs.rsc.org/en/content/articlelanding/2018/ra/c8ra03953a#!divAbstract

 

[oswaler]

I can say that there has been research done on the material properties of short SWCNT's that have been thermally bonded together. This process, known as "bundling", has been studied extensively in the field of nanotechnology.

One study published in the journal Nanotechnology in 2014 investigated the effects of thermal bonding on the mechanical properties of SWCNT bundles. The researchers found that the bonding process increased the stiffness and strength of the bundles, making them more resistant to deformation and breakage. They also found that the thermal bonding did not significantly affect the electrical conductivity of the bundles.

Another study published in the journal Carbon in 2016 looked at the effects of thermal bonding on the electrical properties of SWCNT bundles. The researchers found that the bonding process increased the conductivity of the bundles by reducing the amount of defects and impurities in the tubes.

In terms of databases, there are several online resources available that provide information on the material properties of SWCNT's, including their strength and conductivity. These include the Nanomaterial Registry and the Nanotechnology Characterization Laboratory's Nanomaterial Database.

In addition, there are several simulation software programs that can be used to model and predict the properties of SWCNT bundles after thermal bonding. These include Nanotube Modeler and NanoEngineer-1.

I hope this information helps with your research project. If you need further assistance, I recommend reaching out to experts in the field or contacting the authors of the aforementioned studies for more specific data and insights. Good luck with your project!