Nanocyl has recently seen a significant growth in the use of NC7000 carbon nanotubes for hard disk drives (HDD) trays and components. As data is continuously stored in ever-denser discs, the sensitivity of the components has increased dramatically. Because of this, the HDD industry has set virtually the highest cleanliness standards compared to all other industries.
Applications for CNTs
You will find Nanocyl Carbon Nanotubes used in a wide range of transport trays for HDD. These trays carry “Flex Suspension Assemblies” (FSA), “Head Gimbal Assemblies” (HGA), and other sensitive components. Others applications containing Nanocyl Carbon Nanotubes are VCM trays, HDD cassettes, spacer combs, air filter trays, HSA trays, and TSA/CIS suspension.
In terms of surface resistivity, the transport trays need to be 1X 10^5 to 1 X 10^11 Ohm/square in size, and must meet the high level of cleanliness standards.
Also, the plastic parts that protect the components cannot be a source of ionic or metallic contaminations. High sloughing, poor abrasion resistance, and outgassing must be avoided, too, as they can lead to HDD contaminations, and can cause a decrease of the HDD performance and a decline in longevity.
Advantages of Nanocyl NC7000 Carbon Nanotubes
Because Nanocyl Carbon Nanotubes have a lower loading needed to reach a given resistivity in clean room devices, the probability of contaminates being in micro chips and other sensitive components is also lowered.
Compare this to the waste, contaminations, and inefficiencies produced by using carbon black or carbon fibers in the same applications.
Nanocyl Carbon Nanotubes meet the requirements for Class 100 clean rooms. A Class 100 clean room is designed to never allow more than 100 particles (0.5 microns or larger) per cubic foot of air, and must be washable.
Nanocyl has results from three major tests evaluating Nanocyl Carbon Nanotubes cleanliness: (1) The liquid particle count test measuring the number of particles escaping from the part via sloughing; (2) An outgassing test; and (3) An ionic and metallic contamination test. See these test results at Nanocyl Carbon Nanotube Cleanliness Results