Shaheen goel
M.Tech 2nd sem
Roll No.
Dated on:
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Carbon Nanotubes.
Buckypaper Description
Buckypaper Definition
Types of Buckypaper
Synthesis of Buckypaper
Properties of Buckypaper
Application
Drawbacks
Future Scope
• 1959: Richard Feynman’s famed talk.
• 1981: Binnig and Rohrer created the STM to image individual
atoms.
• 1985: Curl, Kroto, Smalley discovered C60.
• 1993: Iijima, Bethune discovered single wall carbon
nanotubes.
• 1998: Cees Dekker’s group created a TUBEFET
• Discovered by Sumio Ijima (NEC) in his study of arcdischarge products. Nature, 354, 56 (1991)
• Giant Fullerene molecules made of sheets of carbon atoms,
coaxially arranged in
a cylindrical shape.
• SWNT, single-walled nanotube (1 < d < 3 nm.)
• MWNT, multi-walled nanotube (d > 3 nm)
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Buckypaper is a macroscopic aggregate of carbon nanotubes
(CNT), or "buckytubes". The idea for buckypaper came
when British scientist Harry Kroto and Rice
University scientists were attempting to create the
conditions found in a star when it forms elemental carbon. It
owes its name to buckminsterfullerene, the 60
carbon fullerene (an allotrope of carbon with similar
bonding that is sometimes referred to as a "Buckyball" in
honor of R. Buckminster Fuller).
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graphene oxide paper
SWCNT bundles
thick film of randomly orientated SWCNT bundles
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A novel easy-to-handle thin film formed using carbon
nanotubes or fibers
Composed of single-walled, multi-walled carbon
nanotubes or carbon nanofibers that undergo a
repeatable and scalable manufacturing process
Extremely thin (~25 microns) and and lightweight
(areal density: 0.0705 oz/ft²)
Thermally conductive
Electrically conductive
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High mechanical strength and modulus
High strain rate
Highly efficient field emission
Self-actuation
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Buckypapers
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The most common way is to use sodium lauryl
sulfate to improve solubility, and filter a
suspension under pressure to make the paper.
A Frit compression method can also be used
without additional substances by compressing a
suspension in a syringe.
The tubes can be exposed to strong magnetic fields
to align them and increase the overall strength.
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Single-walled carbon nanotube buckypaper (SBP)
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Multi-walled carbon nanotube buckypaper (MBP)
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Strongest fiber that's ever been made (250x stronger than
steel, yet 10x lighter)
Electrical conductivity of copper or silicon
Thermal conductivity higher than diamond
First discovered by Nobel Laureates Bob Curl, Harry Kroto
and Richard Smalley
Key problems are price and the difficulty of working with
them
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It combines SWNTs with low-cost multi-walled nanotubes
(MWNTs) or carbon nanofibers (CNFs) to retain most of the
excellent properties of SBP while significantly reducing the
cost.
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The generally accepted methods of making CNT films
involves the use of non-ionic surfactants, such as Triton X100 and sodium lauryl sulfate.
an alternative casting process can be used involving a frit
compression method that did not require the use of
surfactants or surface modification
Aligned multi-walled carbon nanotube (MWCNT) growth
has been used in CNT film synthesis through the domino
effect
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Bucky-papers are typically formed by first purifying the
CNTs and then dispersing them in a suitable solvent. Once a
well dispersed solution is achieved, it is filtered through a
porous support which captures the CNTs to form an
optically opaque CNT Bucky-paper (Figure 2). If the
Buckypaper is thick enough it can be peeled off the support
filter intact. As prepared CNTs are highly entangled and
typically contaminated with impurities.
These impurities include the metal catalyst particles, such as
Fe, Co and Ni needed for CNT growth, as well as other
carbonaceous by-products including amorphous carbon,
fullerenes, and graphitic nano-particles.
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Composed of tube-shaped carbon molecules 50,000 times
thinner than a human hair.
Buckypaper possesses unique properties enabling it to
conduct electricity and disperse heat.
Sheets of Buckypaper stacked and pressed together form a
composite.
it has a very high thermal conductivity
Electromagnetic shielding (EMI) (Cables, Computers,
Radios, Planes, general interference).
Super capacitors(Buckypaper has great electrical
conductivity although it depends heavily on the
temperature of the environment).
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semi-conductors (Due to buckypapers electrical
characteristics, it may one day replace or augment
silicon)semi conductors are essential to todays modern
computer. The simplest semi-conductor is a simple diode
that can either act as an insulator or a conductor.
BuckyPaper can be folded, cut with scissors, like notebook
paper. We have investigated its mechanical properties after
infiltrating the paper with epoxy base matrix phases
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Electromagnetic interference shielding
Radiation shielding
Lightning strike protection
Heat sinks
Thermal management
Electrodes for fuel cells, supercapacitors and batteries
Ultra-high strength structures
Personal protection: body armor, helmets, armored vehicles
Medical devices
Flat panel displays
Bucky-papers have also been considered for a number of
other applications related to filtration and water purification
1) In may not be good for the environment.
2) The increased glow may increase global warming.
3) expensive
4) making it is very time consuming it take a few days to
make a single role of a few meters buckypaper.
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Using bucky paper as a therapeutic aid in medical
applications
Replacing copper with buckypaper would save weight and
fuel.
As electrodes for fuel cells, super capacitors and batteries
buckypaper could be a more efficient and lighter
replacement for graphite sheets used in laptop computers to
dissipate heat, which is harmful to electronics
Electromagnetic shielding (EMI) (Cables, Computers,
Radios, Planes, general interference).
Super capacitors(Buckypaper has great electrical
conductivity although it depends heavily on the
temperature of the environment).
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build planes, automobiles and other things with buckypaper
composites.
use in armor plating and stealth technology.
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SME Innovations That Could Change The Way You
Manufacture Award, 2009
Nanotech Briefs Nano 50 Award, 2008
R&D Magazine Micro/Nano 25 Award, 2007
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http://wikipedia.org
http://www.buckypaper.com
http://thefutureofthings.com
www.reade.com
http://www.hindawi.com
http://www.azonano.com
Carbon Nanotubes buckypaper permeability and prepreg
process study by Bryant Marshall click a thesis .
A study of nanostructure and properties of mixed
Nanotubes buckypaper materials : fabrication, process
modeling characterization, and property modeling