"surfing a nano world"

“surfing a nano world” story in this mornings Honolulu Starbulletin

Scientists can be surfer’s too…

remember that nano-tech conference a couple of months back here…

The guys are right acreoss from my office downtown.

Maybe I should order a board from them…

Watch out Epoxy-heads something new is on the horizon…

Article

http://starbulletin.com/2006/07/12/business/story01.html

Quote:

Surfing a nano world

A Honolulu company creates a stronger surfboard resin to illustrate the benefits of nanotechnology

By Stewart Yerton

AS THE next big thing in high-tech materials, nanotechnology has found its way into a host of health and recreational products, from golf balls, tennis racquets and bicycles to sunscreen and cosmetics.

Now, a Honolulu company is applying nanotechnology to Hawaii’s traditional pastime. Billing its product as a major improvement on standard materials, Oceanit Laboratories Inc. has created what its senior nanotechnology engineer, Vinod Veedu, calls the world’s first nanotech surfboard.

The 8-foot board, designed for Oahu’s North Shore, still hasn’t been tested in the ocean because winter’s big waves died out before the board was completed, said Ian Kitajima, Oceanit’s marketing manager.

But Kitajima and Veedu seem confident that the board will ride as well as a traditional board. They also say nanotechnology makes it much stronger than a traditional foam-and-fiberglass board.

If the nanotechnology surfboard seems a little bit like a clever invention designed to grab the attention of the local community, it may be exactly that.

WHEN HE WAS a doctoral student at the University of Hawaii, Veedu and his professor, Mehrdad Nejhad, began working with Oceanit to come up with something that would connect with “the local market,” Veedu said.

Veedu and Kitajima settled on the idea of the surf board.

Ian Wasnich, a mechanical engineer who once took a year-long sabbatical from Oceanit to shape surf boards, stepped in to craft the board.

The result, the product of about six months’ labor, is a prototype with the same foam core and fiberglass cloth as a regular board. The difference lies in the resin that coats the foam and fiberglass.

This resin contains tiny particles of titanium that Kitajima likens to rebar in concrete – only much, much smaller. In fact, the nanoparticles are only 20 nanometers long, or about 5,000 to 8,000 times thinner than a human hair. Although tiny, the particles give the boards a much tougher shell, or skin. According to Veedu, the board’s skin is twice as resistant to dings and three times as resistant to fractures as that of a regular board.

The nanotech resin might cost just 30 percent more than standard resin, Kitajima said.

In common parlance and advertising speak, the term “nanotechnology” is often used to describe what used to be called “space-age material.” Although the uses vary widely, with seemingly extraordinary potential, the technology often involves the manipulation of tiny particles to make new types of composites, such as plastics and cloth.

Mercedes-Benz has introduced a scratch-resistant nanotech clearcoat paint, for example. Wilson makes golf clubs using nanotech materials. Eddie Bauer markets fast-drying “water shorts” made with nanotech fabric. And Crown Laboratories claims to employ “the newest nanotechnological ingredients” in its Blue Lizard sunscreens.

SUCH A VERSATILE technology hasn’t been overlooked by Oceanit, a technology R&D firm that has already spun off two other companies, medical device maker Hoana Medical and Nanopoint, a medical optics technology startup.

Since joining Oceanit a month ago, Veedu, who earned his doctorate in nanotech engineering, has been meeting with engineers from other Oceanit divisions to brainstorm new ways to use nanotech.

“I’ve been here a month and already we have 10 to 15 ideas,” he said.

Among other things, Oceanit is looking to employ something that Veedu calls “nanoforest,” which he developed at UH, to strengthen body and vehicle armor.

Veedu believes that Hawaii could build a nanotech industry cluster that will become a magnet for research and investment. Already, he said, the state has the UH Nanotechnology Laboratory. Plus, there’s Oceanit, which has proven capable of attracting the venture investors needed to support startups. Finally, there is Hawaii’s geographic location between the U.S. mainland, Japan and China, where much nanotech research is being done.

Veedu envisions nothing less than a nanotech equivalent of Silicon Valley.

“What we’re trying to build is a Nano Valley,” he said.

To help jump-start that development, Oceanit is teaming with UH to sponsor the 2006 Multifunctional NANOcomposites International Conference in September, a major industry meeting. Speakers will include Sir Harold Kroto, who was awarded a Nobel Prize for chemistry for his nanotechnology discoveries.

In the meantime, Oceanit will continue to work on its surfboard. The company is building a model to use in town, so it will not have to wait until winter to see how the board performs, Kitajima said. And with many surfers on staff at the company, there’s no shortage of people willing to volunteer to test the 8-foot prototype.

The main challenge at this point, he said, is keeping people from playing with Oceanit’s invention.

“We try to make sure that the board doesn’t leave the office,” Kitajima said.

Cool! I love it that there are still new things out there that may come into the market for us to improve on strength… For me, this is the only part that wasn’t that impressive in the article… "According to Veedu, the board’s skin is twice as resistant to dings and three times as resistant to fractures as that of a regular board. " My epoxy boards are already a lot stronger than a “regular” board. I’m 100% sure my Surftech Munoz boards are well over 3 times resistent to dings or fractures than a regular board and still a lot lighter… I think this is a great effort and I’d love to test some of it… Give it the ol’ paddle whacks on the rail and see how it fairs… I’d buy it if it works good and it wasn’t to expensive…

Hmmmm…

Very interesting.

June, National Geograhic has a great article on the many uses and applications in Nanotechnology. Got some Peruvian mummies in there too.

Aloha Oneula:

Wow you got my attention. I wonder if the resin is epoxy or polyester based? Pretty interesting stuff… a titanuim based surfboards. We can start marketing it as a tough strong board from Hawaii. How about calling them “TITA Boards”!

Mahalo and nano-nano,

D

I guess “nano” is going to be the new marketing word.

Enriched resins have been around for a while now. It’s basically just ground up materials mixed into the resin, kind of like adding pigment. This is something the DIYer can do with just about any material. You can buy the powdered materials. The only problems might be keeping the particles suspended in the resin with some materials. But if you mix right before you pour, it shouldn’t be a problem.

Some of the pre-mixed enriched resins I have seen are calcium-enriched, molybdenum-enriched and silicone carbide enriched, but I’m sure there are many more.

The titanium oxide is a good idea, not just for the impact strength, but the UV protection. And they have the particles small enough now that the resin doesn’t get cloudy unless you add a lot.

Does anyone remember the clear zinc oxide sunscreen that came out about 10 years ago? That seems like such a no-brainer to add to resin for UV protection that I wonder if they are already doing it.

This seems pretty cool, even if it is just impregnated with nano sized ti particles, it’s not related but I flyfish and my rod is impregnated with ti, I really love it.

so question…

what would be the pros and cons of applying this nano-sized titanium infused resin over…

  1. a kevlar laminate

  2. a carbonfiber laminate

  3. an s glass and syntech laminate

how much strength comes from the resin versus the the cloth

and then if you factor in a skin of HD foam or balsa

how would a harder or stiffer coating impact the over all strength versus something more flexible like 2020 or 2000 RR.

Is hard to understand the role of the resin versus the glass versus the skin versus the core…

And then is the answer strong and flexible or strong and stiff.

A strong skin over a soft core (Firewire, Aviso, NxxtWave) or a soft skin over a strong core (Morey, Surflight) ?

the rebar in concrete image doesn’t come across to me as being a very flexible solution.

kind of like a fantastic four battle between elastoman and the thing…

comments?

They never mention if the titanium is suspended in regular poly resin or epoxy?

If it is suspended in epoxy and then you use a sandwich with differing densities of d-cell and carbon/kevlar unidirectional and triaxial hybrid cloth, layered and oriented according to computer stress mapping, vac bagged, infused and autoclaved at 175 degrees…wow. Now surfboards would have finally caught up with what sailboats were doing 20 years ago! With this nano stuff, maybe even surpassed.

I am old enough to remember when surfing and board building were simple and fun activities. I still use surfing and board building to “techno-detox” and get away from all that stuff especially when I work in the IT field.

Again this is interesting but I still want to keep it simple and fun.

D

i guess the vague point I was making is to question really how much more strength are you getting out of resin versus the interplay of a good resin to laminate ratio since you sqeegee most of the liquid out of the cloth once you get saturation.

I can see more strength from a better cloth of skin core but just from the resin?

I really wonder how much a better liquid with suspended nano-somethings is going to do in a laminate construct…

Currently we use zinc oxide, and have used graphite also. Titanium is toxic, which is why nano particles of titanium are a bad idea in sunblock, even though they are in lots of sunblocks.

.

Watch out Epoxy-heads something new is on the horizon

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Now you have me thnking of a new name for this group…classic, epoxy heads.

Using concrete as an analogy is a good way of explaining it, except they got it a little bit wrong. The cement is the resin, the rebar is the fiberglass, and the aggregate is the nano particles. Cement alone is brittle and has no tensile or compression strength. The steel rebar is actually flexible in the sense that it can flex without breaking. Add the cement and it flexes less. Add the aggregate and you have improved compression properties. So the nano particles are really about enhancing the resin in some way. Since the resin contributes very very little to strength and stiffness, you have to ask yourself what you want your resin to do that it’s not already doing.

I’m by no means an expert on the subject, but here’s what I think when it comes to surfboards. I don’t think nano particles help resin very much with the strength properties important to something like a surfboard. They aren’t molecule size particles, so they aren’t improving the crosslinked chain of molecules of the resin. And because they are so small, they aren’t going to even approach the strength and stiffness of the long fibers of something like fiberglass or wood. The only enhancement I can see is with the nanoparticles filling in the weave. This can provide a sort of gusseting at the nano level that might contribute some strength and stiffness. But if you really want to add some strength and stiffness, it would be better to just add more fiberglass. On the other hand, I could see how nano particles could toughen up resin, especially polyester resin. But why not just use epoxy which is much tougher than polyester to begin with. So I don’t see nano particles helping us make lighter and stronger boards (until the nanotube fibers come out), but I think they will definitely help boards last longer.

There’s other uses for nano particles like adding ant-friction particles like molybdnum. For a skimboard you could add abrasive resistant particles like silicon carbide on the bottom of the board. I’m pretty sure they use nano particles quite a bit in injection molding.

The whole reason for doing a composite is to combine properties from different materials to achieve properties that can’t be achieved by one material. Surfboards are fairly simple in that there are only a few properties that are of concern: strength, stiffness, and impact strength.

For surfboards you can go either stiff or flexible. If you go stiff enough that your board can’t flex at all, then it won’t break. But you can have flexible without breaking also, like the stuff boogie boards are made of. That’s not going to break, because it can practically fold in half.

For the strong skin/soft core, it will break at the skin. For the soft skin/strong core, it will break at the core. So there is no strength advantage. They both have their own other advantages. The strong skin/soft core can be lighter and stiffer if desired. The soft skin/strong core will have better impact protection.

I think the Surflight is a well thought use of composites in the sense that the designer looked at all the problems with a surfboard, and thought about what and where materials could be used to make improvements.

But we all see different flaws. For example, lets say you really like everything about your boards, but they keep breaking. You could just add more glass or make them thicker, but that would make them heavier or stiffer. With composites you can make your boards stronger without giving up the other aspects you like. You just have to find the right materials, or modify your materials for the job.

Quote:

Watch out Epoxy-heads something new is on the horizon

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Now you have me thnking of a new name for this group…classic, epoxy heads.

I thought of one… Gregloehrians

product name …"tita-nanoheads surfboards inc "

product “catch-cry” …[ “beware…T.N.S.I. are coming to GET you !”]

… now , the sealer to the deal …

if we can only combine this “new tech” with a "tinkler tail’’ ,

"Break the flex code , do triple backflips , and have a brainfart with “tinky tits surfboards” yarda yarda yarda blah blah blah etc.

ben

seriously , though …GREAT to see people trying ALL sorts of stuff to make surfboards more durable …[could be a good thing for the tow-in crew too , I wonder ?]

LOL! And you could pronounce TNSI as “teensy”. hehehe!

" LOL! And you could pronounce TNSI as “teensy”. hehehe!"

Then buyer’s remorse could be yours for the asking

I agree with the concrete analogy.

Wouldn’t the particles act like tiny “hooks” that would span the gap between layers? I read somewhere (“The boat builders guide”, by Walbridge I think) that adding a little bit of cabosil/fumed colloidal silica to the epoxy for a lay-up would help to increase the interlaminer bond between the layers making for a better composite.

Wouldn’t the TI particles do something similar? That would increase the strength of the board by making better “links” between the glass layers and the glass to foam interface.

Maybe that is where the strength gains come from… in part. Still sounds like an expensive gimmick to me. Especially if the case above is true. Cabosil is really cheap and can be used in most resin systems to accomplish a very similar result.

Hafte

Hold on with the concrete analogy. Concrete IS strong in compression, but IS weak in tension. Someonen starting off a post my screwing up these basic facts is, um, mis-stating the facts, or worse. Well that’s the internet - information worth what you pay for it.

Steel reinforcing in concrete provides the tensile strength, just as does the fiberglass in a FRP matrix. I don’t believe that nanoparticles enjoy any relationship to the aggregate in concrete, the size relationships are just too small.

However, the concrete guys are already at the place that I think the nano-types may be trying to reach. There have been available for at least a decade, prebagged mixes of fibers that are advertised to inhibit initial micro-crack formation is stressed concrete. Years ago these products consisted of little hairs of steel; nowadays they are fibers of some type of plastic. Sorry don’t know which plastic; I’m a civil engineer not a structural. However, realize that nanoparticles operate on a scale that is several orders of magnitude smaller than the fiber mixes.

The infomercial for Oceanit’s product is, well, a little much. But the market will have a say… if they get there.