Nanotube Infused Paint can Detect Strains

A new type of paint made with carbon nanotubes at Rice University can help detect strain in buildings, bridges and airplanes.

The Rice scientists call their mixture “strain paint” and are hopeful it can help detect deformations in structures like airplane wings. Their study, published online this month by the American Chemical Society journal Nano Letters details a composite coating they invented that could be read by a handheld infrared spectrometer.

This method could tell where a material is showing signs of deformation well before the effects become visible to the naked eye, and without touching the structure. The researchers said this provides a big advantage over conventional strain gauges, which must be physically connected to their read-out devices. In addition, the nanotube-based system could measure strain at any location and along any direction.

Rice chemistry professor Bruce Weisman led the discovery and interpretation of near-infrared fluorescence from semiconducting carbon nanotubes in 2002, and he has since developed and used novel optical instrumentation to explore nanotubes’ physical and chemical properties.

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8 comments

  1. Dan Savage 5 years ago

    Thank you for the knowledge guys! Have a great 4th!

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  2. 5 years ago

    Thank you for the knowledge guys! Have a great 4th!

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  3. dhsavage2 5 years ago

    Thank you for the knowledge guys! Have a great 4th!

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  4. TheVishMoh 5 years ago

    Since they are pure nanotubes in a durable polyurethane nanocomposite they are stable at UV too, however only their near-IR fluorescence is used in this study for strain sensing.

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  5. TheVishMoh 5 years ago

    Since they are pure nanotubes in a durable polyurethane nanocomposite they are stable at UV too, however only their near-IR fluorescence is used in this study for strain sensing.

    Like Dislike
  6. Dan Savage 5 years ago

    Very intresting technology. Is it UV stable too?

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  7. 5 years ago

    Very intresting technology. Is it UV stable too?

    Like Dislike
  8. dhsavage2 5 years ago

    Very intresting technology. Is it UV stable too?

    Like Dislike

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