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Carbon Nanotube (CNT) Aerogel Muscles

Carbon Nanotube (CNT) Aerogel Muscles. Yi Rao May 4th, 2008. By Ray H. Baughman, UT Dallas. Preparation of CNT A erogel Sheet Actuator. MWNT forest were synthesized by catalytic CVD. CNT A erogel Sheet is drawn from straight sidewalls of MWNT.

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Carbon Nanotube (CNT) Aerogel Muscles

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  1. Carbon Nanotube (CNT) Aerogel Muscles Yi Rao May 4th, 2008

  2. By Ray H. Baughman, UT Dallas

  3. Preparation of CNT Aerogel Sheet Actuator MWNT forest were synthesized by catalytic CVD CNT Aerogel Sheet is drawn from straight sidewalls of MWNT Outer diameter: 12nm with 9 walls Speed: 2m/s

  4. Measurement of Actuation Apply voltage to positivelycharge to CNT sheet The CNT sheet is expanded by change repulsion Changes is recorded by optical diffraction

  5. Actuation in width and thickness direction Voltage, L/W ratio and temperature dependence Sheets num

  6. Operating at resonance with low voltage Q is 455, the strain can be 30% with Vrms=10V

  7. Actuation in the length direction (Strength) Stress on length direction and work capacity Different applied voltage to width expansion

  8. Conclusion and Drawback • The CNT Aerogel muscle shows some amazing properties compared with human muscle • Strain, Strain Rate, Stress • Density • Temperature tolerance • But there are still some concerns • The material volume is not large and dense enough for real use • The property of CNT sheet becomes worse when add more layers • The apply voltage on low frequency is too large • Very high cost ($100/g)

  9. Complementary: Aerogel • Aerogel is a solid-state material with the lowest known density • Aerogel is gel in which the liquid component of the gel has been replaced with gas. • Aerogel is thermal insulator

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