karoliina.t.salminen
Well-Known Member
Hi,
It seems that some major sports equipment manufacturers have already adapted this (Hybtonite + Carbon fiber laminate). So this can not be compete vaporware, there has to be validity to this.
I asked the reason why carbon nanotubes in random direction could be beneficial from one NASA guy, why this epoxy with nanotubes on it can be better than normal epoxy without filler when the direction of the nanotubes is not completely known/controlled, he explained that it might have something to do with the peel strength of the epoxy laminate, that part of the nanotubes will reinforce the laminate to the direction where the laminate is usually very weak (everyone doing hand layups/composite repair knows that a layer can be peeled of a cured layup with bare hands almost - this is where the repair strategy teached here actually is based on - instead of sanding around the damage, layers are peeled and replaced to same fiber directions) and the carbon nanotubes might make the laminate stronger to that direction. I don't know if there are some other things also involved why a resin without this filler is weaker than with the filler.
Here is a presentation from the company:
http://www.amroy.fi/pdf/amroyhybtoniteinfo.pdf
And here is a product list with the nanotube filled epoxy resins:
Amroy
Best Regards,
Karoliina
It seems that some major sports equipment manufacturers have already adapted this (Hybtonite + Carbon fiber laminate). So this can not be compete vaporware, there has to be validity to this.
I asked the reason why carbon nanotubes in random direction could be beneficial from one NASA guy, why this epoxy with nanotubes on it can be better than normal epoxy without filler when the direction of the nanotubes is not completely known/controlled, he explained that it might have something to do with the peel strength of the epoxy laminate, that part of the nanotubes will reinforce the laminate to the direction where the laminate is usually very weak (everyone doing hand layups/composite repair knows that a layer can be peeled of a cured layup with bare hands almost - this is where the repair strategy teached here actually is based on - instead of sanding around the damage, layers are peeled and replaced to same fiber directions) and the carbon nanotubes might make the laminate stronger to that direction. I don't know if there are some other things also involved why a resin without this filler is weaker than with the filler.
Here is a presentation from the company:
http://www.amroy.fi/pdf/amroyhybtoniteinfo.pdf
And here is a product list with the nanotube filled epoxy resins:
Amroy
Best Regards,
Karoliina
