Slashdot Mirror


Yarn Spun from Nanotubes

jabberjaw writes "Nature is reporting that Professor Alan H Windle has spun nanotube yarn by twisting nanotubes onto spinning rods as they come out of the furnace from which they are made. Professor Windle's team used ethanol (carbon source) with ferrocene (catalyst) and thiopene (for thread assembly) to create the structure. To create the tubes a mix of the above chemicals is inserted into a furnace in a jet of hydrogen gas. However, do not get your hopes up yet, the press release also indicates that the yarn has a strength comparable to that of most modern textiles but the groups does state that there is room for improvement. Yes, for those of you wondering, there is mention of a space elevator."

36 of 152 comments (clear)

  1. At last! by Hayzeus · · Score: 4, Funny

    Granny can now knit me that virtually invulnerable monitor cozy I've always wanted!

    1. Re:At last! by Mick+Ohrberg · · Score: 3, Funny
      How about a Beowulf cluster of these?

      Umm...wait, wrong thread. Hehe, thread. Get it? *rimshot*

      --

      Quidquid latine dictum sit, altum sonatur.

  2. Stole my idea... by grub · · Score: 4, Funny


    Last Monday I caught a sweater on something at work. I remember plain as day muttering "Damn wool and its inherent weaknesses! My fashion woes would be eliminated if someone would come up with a way to feed a mixture of ethanol and catalytic ferrocene with a splash of thiopene into a hydrogen gas furnace..."
    What's David Boies' phone number?

    --
    Trolling is a art,
    1. Re:Stole my idea... by mykepredko · · Score: 4, Funny

      You realize of course that if you had such a sweater, it would cut through anything it snagged on.

      You're probably thinking that probably isn't a bad thing - the world would become a much smoother place (and safe for traditional textiles). But everytime I put on a knitted sweater, a part of me gets snagged or caught in part of the sweater.

      Personally, I don't want to get any smoother.

      myke

    2. Re:Stole my idea... by dpilot · · Score: 4, Funny

      After reading some other nanotube story, I was cooking that night and musing about nanotubes in food preparation...

      Imagine a rectangular frame with nanotubes forming a grid or just parallel lines. Drop an egg through the frame, and it falls through the bottom sliced. Drop a potato through the frame, and (uncooked) french fries fall out the bottom.

      Forget what you're doing when you handle it, and take pieces of your fingers to the hospital for reattachment.

      --
      The living have better things to do than to continue hating the dead.
    3. Re:Stole my idea... by Cruciform · · Score: 3, Funny

      "BAM!!! Oh shit..."

    4. Re:Stole my idea... by F34nor · · Score: 3, Interesting

      Do you know how they slice potatoes for French fries now? High pressure water. One word: foamy.

      They optimize them on a high-speed conveyer belt that has rows of optical sensors with hydraulically fired knifes. As the fry passes under the sensor it optimizes the fry length and fires a hydraulic piston with a rubber hinge attached to a curved blade, the speed that the piston fires at flexes the rubber hinge so that as it springs back it's speed matches belt. This prevents the fries from being fired off the belt by the knifes. It also accounts for starch build up on the system. All pistons are hot swappable. One of these machines can do all the fries for a region of the country. This is an example of precision motion control software mated to good mechanical engineering.

      I think you stole the idea from Frank Herbert's Shiga wire or Arthur C. Clarck's Diamond fiber. ;)

  3. So that's where Seven of Nine's catsuit came from. by Channard · · Score: 3, Funny

    .. the one that apparently was so tight it nearly choked Jeri Ryan on set. The Nanotubes, cap'n.. they cannae hold!

  4. next generation by pvt_medic · · Score: 3, Interesting

    this could nicely lead to next generation of armor especially bullet proof vests.

    --
    30% Troll, 50% Underrated, 10% Interesting
    Score:5, Troll
    1. Re:next generation by Big_Breaker · · Score: 5, Informative

      Not true... the elasticity is mostly determined by the vests weaving. Kevlar does not stretch very much - its tensile elongation % is 2.8

      Vests need to distribute the energy across the vest and elasticaity doesn't help there.

  5. Thiopene? by Anonymous Coward · · Score: 5, Informative

    Not this time...

    thiophene ... one letter makes a big difference in chemistry

    IAAC - I am a chemist

  6. Once upon a time... by Matey-O · · Score: 4, Funny

    There were these carbon molecules in a Erlinmeyer flask. They wanted to see the world in a way no other carbon molecules had before. So they held hands and created a buckeyball....

    Well, maybe not an interesting yarn for YOU, Carbon based Ugly bag of mostly-water, but the little carbonettes just EAT these stories up!

    --
    "Draco dormiens nunquam titillandus."
  7. nobody is honest these days by v_1_r_u_5 · · Score: 4, Funny

    If you thought politicians were bad, now even NANOTUBES are spinning yarn.

  8. Good nanotube resource site by bcolflesh · · Score: 5, Informative
  9. Expensive sweater by dustmote · · Score: 4, Interesting

    I can only imagine that this would make one of the most expensive sweaters ever. What are the insulating properties of nanotubes? We may not have the tensile strength available to us at a macro level, but if they have good insulation properties, this yarn may be somewhat commercially viable in certain niche applications as-is. Y'think? Then again, are they flammable? That might be bad.

    --


    -1, "1337" speak
    1. Re:Expensive sweater by SB9876 · · Score: 4, Informative

      Hard to say what the insulating properties of nanotubes might be. Insulation in fabric has less to do with the fibers and more to do with the way that it traps a layer of static air next to you. OTOH, nanotubes don't carry heat well (if at all, I seem to recall that the tube radius is to small to carry phonons radially) across the fibers but along their length, they should be one of the most effective heat conductors in existence.

      As for flammability, what you need to watch out for is the fact that they're optically unstable. Someone found out that if you try and takea flash picture of them, they spontaneously combust in a rather explosive manner.

      I can see a nanotube sweater at a family get together right now:

      "OK, everybody, say cheese!"

      "NO WAIT, NOOOOO!"

      FOOM!

  10. Re:next generation fishing line by cyber_rigger · · Score: 4, Funny

    Just think of the fishing line you could have. It could cut your boat in half.

  11. Space Elevator and Nature by smoondog · · Score: 5, Insightful

    Getting a space elevator mentioned in Nature is huge, whether or not it is a viable project. It will help give it the exposure it needs to get debated on whether it is a viable project by people that could actually help get it off the ground.

    -Sean

    1. Re:Space Elevator and Nature by bennomatic · · Score: 3, Funny
      > that could actually help get it off the ground.

      Mod parent up "+1 Pun Intended"!

      --
      The CB App. What's your 20?
    2. Re:Space Elevator and Nature by Chris+Burke · · Score: 4, Insightful

      Getting a space elevator mentioned in Nature is huge, whether or not it is a viable project. It will help give it the exposure it needs to get debated on whether it is a viable project by people that could actually help get it off the ground.

      I hope it isn't premature. I worry about generating a lot of hype about an elevator, and then have it go nowhere, or have a high-profile experiment/test fail. I don't want to see it go the way of cold fusion, where everyone knows what it is, and thinks its a joke, so you can never get funding for it again.

      --

      The enemies of Democracy are
    3. Re:Space Elevator and Nature by bfree · · Score: 3, Insightful

      The Space Elevator idea is quite safe from becoming a joke until someone announces "I have a material strong enough to build a space elevator". Then you will see the put or or shut-up moment for it's proponents but up until then it is theoretical. I think it is important for research to continue into the logistics of space elevators but until we have a potential material it's an aspiration. I just hope that if/when we find a meterial we can find the techniques to turn it into a space elevator. Of course it is possible that someone will figure out a way to build a space elevator that doesn't require as strong a material but I think at present it all hangs on the material researchers. When they solve their problems the engineers will have to come in and see if they can turn a theoretical idea with a plauible material into an actual workable installation plan (just cause you can make a material in a lab doesn't mean you can produce the quantities required on site).

      --

      Never underestimate the dark side of the Source

  12. Oh great.. by hookedup · · Score: 5, Funny


    So next time someone snaps my picture., my sweater will explode.

    Very amusing...

  13. How to cut a rope so strong?? by toesate · · Score: 4, Interesting

    Just curious... given a rope so strong, how would one untie or cut it if it is entangled.

    Quite scary to be tied by such a rope.

    --
    Hey, that's my password you are typing
    1. Re:How to cut a rope so strong?? by Anonymous Coward · · Score: 3, Informative

      kevlar is a funny material.

      it is a really strong fibre that can stop bullets when you make a vest out of it, but a knife will slide right through it and kill the wearer.

      just because an item has a strong tensile strength doesn't mean it can't be cut.

  14. Strength isn't the only issue by Anonymous Coward · · Score: 5, Interesting

    This could well be interesting stuff even if it is no
    stronger than current polymers. The advantage may well
    arise from its ability to retain its strength
    at high temperatures which current threads do not.
    UV resistance would be another big win.

  15. Spinnerets are the Key by memmel2 · · Score: 3, Interesting

    Intresting with a lot of work on the spinneret this may improve rapidly. Also we have a lot of experience in this area so refining the process is not new tech. Sort of like with inkjet printers or spiders the magic is in the nozzle. I think using electrostatic nozzles may be intresting

  16. Yam Spawn from Nanotubes? by Rob+Riggs · · Score: 3, Funny
    Yes, it is early in the morning, but that's how I first parsed it.

    Mmmmm... yams.

    --
    the growth in cynicism and rebellion has not been without cause
  17. Grandmothers delight by onyxruby · · Score: 5, Funny

    Grandmothers delight as they learn that they can now make a sweater that is immune to all those mysterious things that keep plaguing all the other sweaters previously given to their grandchildren.

  18. As usual, porn will lead the way. by Chris+Burke · · Score: 5, Funny

    So next time someone snaps my picture., my sweater will explode.

    Once again, a new technology's most obvious application is in pornography.

    --

    The enemies of Democracy are
  19. nanotube "dust" hazards? by scrytch · · Score: 4, Insightful

    Given the toughness and other properties of carbon nanotubes, does the dust tend to be like graphite, and reasonably safe as an inhalation hazard (being heavy and all), or has any kind of toxicology testing been done with them? I'd hate to see carbon nanotube fragments becoming the next asbestos.

    --
    I've finally had it: until slashdot gets article moderation, I am not coming back.
    1. Re:nanotube "dust" hazards? by phiala · · Score: 4, Informative
      Given the toughness and other properties of carbon nanotubes, does the dust tend to be like graphite, and reasonably safe as an inhalation hazard (being heavy and all), or has any kind of toxicology testing been done with them? I'd hate to see carbon nanotube fragments becoming the next asbestos.

      Unfortunately nanotubes appear to be much more toxic than graphite (at least particular kinds of nanotubes, and for inhalation), leading to lung damage of types unexpected by the scientists doing the research.

      I recently read a popular summary somewhere but of course don't remember exactly where. There's a fairly technical (but not unreadable) summary at from Toxicological Sciences available online. (I think that's a freely available article.)

      --
      I prefer to be called Evil Scientist.
  20. Buzzwordium by Iowaguy · · Score: 5, Interesting

    What amazes me is that we never seem to learn. As a scientist, I see this scenerio played out over and over. Someone discovers something new and kinda cool. Then, in the ferver of excitement that follows, the sun, moon and stars are promised. Much activity occurs. Some progress is made. Real work gets done. But, at the end of the day, we have no sun, moon, and stars.

    Carbon nanotubes are an interesting discovery, but making them in adundance is non-trivial. Forming them into useful macro structures is also not well understood, to put it mildly. I hate to break it to you, but there will be no space elevator, at least any time soon.

    This irrational exuberance of science tends to hurt more than help. Becuase when someone promises the world and then doesn't deliver. It hurts the entire discipline in the way of funding cuts by politicians who feel burned for beleiving the hype. Just some perspective.

    My two cents,
    -Iowa

    --
    "He who laughs last, didn't get the joke."-Cap
  21. Properties of Carbontubes by Anonymous Coward · · Score: 4, Interesting

    Before everyone gets the idea of dressing up Jerry Ryan in ultra tight nonotube fabrics I would like to point out that this material is not properly investigated regarding toxicity. Even a brief look on the net will show that it is quite possible it has similar properties as asbestos fibres, and that is not nice.

  22. Whats it look like? by kindofblue · · Score: 3, Interesting
    I remember hearing something about how buckeyballs, or some nano-structure, absorbs photons very easily and that it ignites like flash powder. But I don't remember any details.

    Anybody know what a mass of nanotubes looks like? And buckeyballs? Soot, which is black, contains lots of buckeyballs I think. And diamonds are colorless. So how would the nanotube structure affect the color?

  23. Space elevators by XNormal · · Score: 4, Interesting

    I can't seem to find it now, but Jordin Kare (of LLNL) had a nice presentation showing that a space elevator isn't really any cheaper than a RLV - even under when the space elevator assumes not-yet-existent materials like carbon nanotube composites with tensile strength approaching that of the raw fiber and the RLV is built only using existing technology.

    Many proponents of certain technologies forget to take into account that hypothetical advancements required for their favorite technology will also benefit competing technologies. For example - carbon nanotube composites will make superb structural material for a high fuel fraction RLV, and it doesn't take tens of thousands of kilometers of the stuff.

    --
    Stop worrying about the risks of nuclear power and start worrying about the risks of not using nuclear power.
    1. Re:Space elevators by burgundy · · Score: 3, Informative

      Here's a link to the presentation by Jordin Kare you're thinking about: http://www.isr.us/spaceelevatorconference/pdf/Kare /Workshop2_kare.pdf. One point he makes is that, to a large degree, propellent costs are irrelevant to the economics of lifting payloads to earth orbits. Space elevators satisfy a desire for technological elegance we all share, but they don't really seem so interesting when you examine their economics.