We are still working on the sewing machine video that we promised last week, but in the meantime, we wanted to put together a fun demonstration of the flexibility of our carbon nanotube yarn. Here we have replaced the cotton string on a yoyo with a length of our carbon nanotube yarn. The yarn is flexible enough for the yoyo to work perfectly, and as you can see it is strong enough for Dmitri to perform a few tricks.
In this video we focus on one of our newly available products, a higher strength version of our 130 micron diameter carbon nanotube yarn.
DexMat is at the Interwire 2019 expo in Atlanta, GA, to talk about our carbon nanotube yarns and films. If you are in the area from May 14 – May 16, come by booth 154 and say hello!
In this video we perform an “amateur” impact test on a sample of our carbon nanotube film by striking a razor blade into it with a hammer. The CNT film is compressed, but not torn or damaged.
Come and meet DexMat at the Interwire Trade Exposition in Atlanta, GA from May 14th through May 16th!
We will be showing off examples of our Carbon Nanotube wires and films.
Learn more about Interwire at https://www.interwire19.com/
In this video we demonstrate the amount of electric current that our 500 micron diameter CNT yarn can sustain in air, and compare this to a copper wire measured with the same apparatus and environment. Here are the precise properties of the materials used in these tests:
The CNT yarn has an average diameter of 500 microns, a linear mass of 0.18 mg/m, and a linear resistance of 1.3 Ohms/m.
The copper wire is a 36 gauge wire with a diameter of 127 microns, a linear mass of 0.26 mg/m, and a linear resistance of 0.59 Ohms/m.
Note that the voltage measurements shown on the power supply display represent the voltage drop through the entire circuit, not only across the sample being measured.
In this video we introduce a high strength grade of 200 micron diameter CNT yarn to the catalog of DexMat yarn products! The high strength yarn has a breaking force of well over 3 kg and is about 50 % stronger than its predecessor. The tensile strength of this yarn is 1 GPa, and it is also very lightweight and highly flexible. Our high strength yarn is now available for purchase at the DexMat online store.
Here we show off the difference between Pi grams of copper wire and Pi grams of our carbon nanotube yarn.
Full disclosure: some of the difference in length here is due to the carbon nanotube yarn being thinner. The copper wire in this video is 1.2 mm in diameter; the carbon nanotube yarn ranged from 0.7 mm to 1 mm in diameter. The length difference is so extreme, however, because of the difference in density between the two materials, which is close to a factor of 9.
Happy Pi Day!
We have talked with many people who are curious about using our carbon nanotube yarn in their projects or products, so we wanted to show off a very simple DIY project of our own. For a limited time this month (March 2019) we are having a sale on our 200 micron diameter carbon nanotube yarn, so now is an ideal time to get some! We would love to hear feedback from anyone who has tried out our materials – let us know what you are doing with them, and how they work for you!