What are the disadvantages of Carbon nanotubes?

Answer 1

Previous answer claimed it was molding that is difficult but that is the least of its problems, when done by professionals the molding problem is no problem at all. However the first reason the previous answer claimed was very true indeed.

Carbon Fiber is nowadays extremely expensive, a good example of this is you hardly see any cars released with carbon fiber these days that don't cost you at least 100,000.

Apart from expenses recycling is very difficult when it comes to carbon, you cannot melt it like steel to reuse, its recycling process is way more complicated and tedious, and to top that the recycled carbon is too weak to be used on manufacturing another vehicle, so this would result in too much waste.

Also another difficulty i personally had with carbon fiber is its repair. once a carbon fiber structure is dented or cracked you cannot beat it back into shape like steel or add a fiber glass layer like panel beaters do. once that dint or crack has occurred the entire structure's modulus and tensile strength and other factors are flawed and the part would need to be thrown away and replaced.

There may be more disadvantages to carbon fibre manufacturing but these are the three i have personally experienced and faced. i hope that was thorough enough without being tedious.

Answer 2

The main disadvantage of carbon (Graphite) fibers is catastrophic mode of failure (carbon fibers are brittle).

Answer 3

the disadvantages are that Nano tubes can be quite difficult to work with because of their very small size and they can be quite expensive to produce.

Answer 4

It isn't recycable