Our versatile High Pressure Homogenizers are a promising method for the creation of Carbon Nanotubes (CNTs) dispersions with greater efficiency, scalability and smaller particle sizes than other techniques including Sonication.

Carbon nanotubes (CNTs) are cylindrical molecules of single-layer carbon atoms (graphene). They can be single-walled (SWCNT) with a diameter of less than 1 nanometer (nm) or multi-walled (MWCNT). Their length can reach several micrometers. Carbon nanotubes exhibit many remarkable properties including outstanding thermal and electrical conductivity and exceptional tensile strength.

Application Notes - Carbon nanotubes

As shown below some SWCNT and MWCNT formulations were processed through our Stansted High Pressure Homogeniser using piston gap technology.

Just after 1 or 2 passes size reduction and PDI were found to be satisfactory. Further size reductions can be achieved by increasing the pressure or the number of passes.

CNTs before HPH processing

carbon nanotubes unprocessed.

CNTs after 1 pass through our Lab Homogenizer

carbon nanotubes unprocessed.

After 2 passes

carbon nanotubes unprocessed.

To be prepared for use in applications CNTs usually first need to be dispersed into a liquid medium. This requires separation of the bundles, a process which is often carried out by sonication. However, the disadvantages of this method is that it can be very time-consuming and is only suitable for low volumes.

Lab Homogenizer Carbon Nanotubes research -  image

Carbon Nanotube production - our High Pressure Homogenizers

  Our systems are much easier to scale-up - to production volumes - than other technologies.

  Accelerated processing - less time consuming and resource intensive when compared to other methods.

  Our technology provides an effective method to disaggregate and disperse CNT clusters with repeatable results.

  Producing smaller particle sizes and CNTs of uniform size in dispersions with less potential damage to the nano-molecules.

  Possible increase in CNT concentration to above 50%.

Our High Pressure Homogenizers - features

  Ultra high pressures to 60,000 psi (4200 bar) and processing from Lab R&D samples to production volumes in excess of 1000 l/hour.

  Sophisticated temperature control including pre- and post-cooling or heating, to help preserve product quality.

  Exceptional processing versatility and systems scalability.

  Easy to use, clean and service. Low on-going ownership costs.

Please contact us now to discuss your Carbon Nanotube requirements.

Production scale system

Carbon Nanotubes production Homogenizer -  image

Laboratory Homogenizer for R&D

Lab Homogenizer Carbon Nanotubes research -  image

Rotating single-walled zigzag carbon nanotube.

Rotating single-walled zigzag carbon nanotube

Triple-walled armchair carbon nanotube.

Triple-walled armchair carbon nanotube

A scanning tunneling microscopy image of a single-walled carbon nanotube.

scanning tunneling microscopy image of a CNT