Hi! Thanks for a very interesting question.
I will structure my answer based on your requirements plus a little
background information on the nanotechnology applications in the
coating industry. I will also provide small snippets from the articles
I will cite within my work but I highly recommend that you read the
articles in their entirety to get a better grasp of the concepts.
Background Information:
Coating Industry: An Early Adopter of Nanotechnology
“Nearly half (47 percent) of the respondents identified "smart paint
pigments and coatings" as an early adopter of nanotechnology. The only
other response with a double-digit percentage was "other/no response"
(20 percent). One-third said smart paint pigments and coating would be
the hottest area of nanotechnology development in the next five
years.”
“Reports Say Materials Are Where to Find the Nano Action”
By Michael Pastore
http://www.nanoelectronicsplanet.com/features/article/0,,6571_1428361,00.html
Opportunities in the Coating Industry for Nanotechnology:
“Metallic stainless steel coatings sprayed using nano-crystalline
powders have been shown to possess increased hardness when compared
with conventional coatings, although the porosity is increased.”
“Nano-composite coatings comprising a ceramic/polymer mix have also
been applied by High Velocity Oxy-Fuel (HVOF) spraying. These
nanoparticle reinforced polymer composites have advantages in
applications where the polymer strength is less important than the
ductility of the coating.”
“In addition to being able to apply coatings made from nano-phase
powders, techniques themselves are being developed in which the
processing parameters involved in the spraying actually produce the
nano-crystalline structure.”
“OPPORTUNITIES FOR INDUSTRY IN THE APPLICATION OF NANOTECHNOLOGY”
http://www.nano.org.uk/industry9.htm
-------------------------------
Benefits of Nanotechnology in the coating industry:
Our next articles meanwhile provide why we should use nanotechnology
in future coatings and also provides some of the answers to unmet
needs.
Industrial Advantages:
“Such effects include ultraviolet (UV) blocking, anti-static, and
conductive capabilities. Paints and coatings industries were among the
first to take advantage of these capabilities three years ago.”
(Technology by Advanced Nano Products Co. Ltd., Taejon, Korea
http://www.anapro.com/english/anpis/ANP%20is.htm)
“Companies also found that with the incorporation of nanoparticles,
thin film coatings have stronger bonds and better flexibility, with
little cost differences. These coatings are smoother, stronger, and
more durable. When used on products, the results range from
scratch-resistant and self-cleaning surfaces to moisture-absorbing
clothing.”
“Another benefit of nanoparticles is that they are smaller than the
wavelength of visible light (400 to 700 nm), thus transparent to the
eye… nanoparticles can be introduced, add physical property
performance, and not affect the clarity of the coating.”
“There is a need for transparent coatings that can bleed off static
charges and ground them, according to Freed. Potential applications
include clear packaging for electronic parts and airplane windows.”
(Technology by Nanophase http://www.nanophase.com/)
“Nanoparticles can also be manipulated to allow sustained release of
biocides. Altair uses a technology that encapsulates fungicides and
biocides into coatings to create a time-release effect.”
Medical Benefits:
“For example, Altair Nanomaterials Inc., Reno, Nev., coats
nanoparticles with pharmaceuticals to make them more absorbable by the
body. Altair also adds coatings to nanoparticles to make them
photochemically active so they can be added to a coating as
self-cleaning agents.” (Technology by Altair Nanomaterials Inc
http://www.altairinc.com/)
Future Uses of Nanotechnology in the Coatings Industry:
- fireproof wood doors
- stain-resistant jeans
- clear coats for cars that prevent key scratches
- bandages that kill bacteria
- “car wash materials where the nanoparticles stick to the surface of
car paint and do not allow dirt to adhere to surface…
- “plasma or thermal sprays that can be applied to a surface to form
thin, hard ceramic coatings.”
Article Source for Benefits:
“When it Comes to Nanocoatings, Size Matters”
http://www.rdmag.com/features/0208nano23.asp
The Ormecon company in Germany also mentions more technical benefits
to using nanotechnology in coatings.
Organic Metals Applications – “It was explained that the application
opportunities go far beyond the area of corrosion protection
(conductive primers), and various examples were given of functional
surfaces, such as use in the electrodes of electroluminescent displays
or LEDs, in the manufacture of printed circuit boards and in the form
of antistatic coatings.”
Switchable Properties – “Prof. Rolf Hempelmann (SusTech GmbH) uses
electromagnetic fields in dispersions of nanometre-range ferrite in
polymer matrices to produce, initially, heat which makes it possible
to control or measure certain properties.”
Special-Effect Pigments – “The colour of the pigments used changes as
a function of temperature, giving modified reflectance spectra. The
materials are intended for use in architectural coatings as a means of
regulating temperature.”
Tailored Properties – “Taking as a starting point conventional
coatings chemistry, by introducing sol-gel structures into organic
binders, inorganic/organic hybrid materials were produced which, after
modification at molecular level, can give relatively hard coating
materials or indeed the option of easy-clean properties.”
Cleaning Properties – “By means of a new mechanism in which active
substances are transported continuously from the interior of the
coating to the surface in minute quantities, the limited service life
of current easy-clean films is to be dramatically increased - to
several years.”
Molecular Memory - particles can store electronic data
Coating Displays – “Extremely thin liquid crystal displays (LCDs) can
be made by light-induced polymerization.”
“Coatings with Functionality”
http://www.pcimag.com/CDA/ArticleInformation/features/BNP__Features__Item/0,1846,83511,00.html
The Ormecon Website
http://www.ormecon.de/
---------------------------
Coating and Nanotechnology Real World Applications:
Our next articles meanwhile will tackle on how nanotechnology will be
use in the real world. Such technologies are currently being
developed.
The US military is currently developing the special effects pigments,
mentioned earlier, in making chameleon tanks.
“Tanks that can repair themselves and change colour on the battlefield
are being developed in the US.”
“Military vehicles including tanks, trucks helicopters and weapon
systems will be covered with a coating that has been embedded with
nanotechnology.”
“Smart paint creates chameleon tanks”
http://news.bbc.co.uk/2/hi/technology/2386731.stm
The next link features a use that will be used in car paint
technology. Wear resistant and low friction coatings are the subjects
of this presentation. The following technologies will be used:
- “Iridescent coatings”
- “Carbon nanotube based paints”
- “Corrosion protection coatings”
“Sustainable Production: The Role of Nanotechnologies”
http://europa.eu.int/comm/research/growth/pdf/nanotechnology02-conference/presspacklyngby-4b-nanomag_ohs_final300902.pdf
NASA is also one organization that is closely watching this
technology. They are particularly interested in the transparent and
pigment effect technologies that we also mentioned earlier.
“To make an inflatable Martian house, a varnish of nanostructures
would be layered over more conventional material, Brinker explained in
a telephone interview, resulting in a see-through covering that would
change color when outside temperatures rose to dangerous levels. It
would be sensitive to leaks in the roof and exposure to certain
chemicals.”
“Smart Coating Developed to Build Future Martian Homes”
http://www.space.com/scienceastronomy/solarsystem/nano_mars_010423.html
--------------------------------
Finally here are the following companies and articles on how they are
using nanotechnology in their coating products.
1. Nanogate Coating Systems GmbH
“The product portfolio of Nanogate Coating Systems GmbH includes
intelligent coating systems featuring properties like elasticity and
scratch-resistance for a wide range of surfaces. These characteristics
are obtained using self-organising polymers and/or nano-particles.”
http://www.nanogate.de/datenbank/aktuelle_meldungen_e/meldung007.htm
http://www.nanogate.de/datenbank/aktuelle_meldungen_e/meldung004.htm
2. Nanmat Technology Co. (Kaohsiung, Taiwan)
“Nanmat Technology Co. (Kaohsiung, Taiwan) is proudly to introduce a
proprietary technology - a simple, environmental benign metal surface
pretreatment process (the Nanmat's process), which was originally
developed for the metal adhesive bonding in aerospace applications.
Instead of chemically grow the oxide layer on the metal surface; this
technology uses an aqueous solution to apply on the metal to form a
nano-composite coating. This coating can be applied on the metal by
many techniques like dip, spin, spray, or roller coatings.”
http://www.nanmat.com.tw/english/mtps.html
3. Buhler Technology - Anti-adhesive coatings
http://www.buhlergroup.com/nano/en/default.asp
4. Respect Innovations – Advanced Marine Technologies
“The technology that drives Advanced Marine Technologies derives from
the same process that made a dramatic entry into the automotive
coatings industry, says Respect Innovations chairman, CEO, and
resident inventor, Andrew Spencer.”
“In simplest terms, the technology can reduce earthly and synthetic
elements to a level where they can hold color inert within a particle,
Spencer explains. The micro and nano particle blends produced by MPT
are the smallest particle blends manufactured in commercial volume,
and are the smallest fragmented organic and non-organic materials
currently known. As a result, a range of special effects can be
produced, depending on the element used.”
http://www.pcimag.com/CDA/ArticleInformation/features/BNP__Features__Item/0,1846,60609,00.html
5. G&P Nanometer Paints
“As a whole, G&P nanometer emulsion paints can greatly increase the
aging resistance (upon experiments for 1000 hours, the weathering
resistance can last for 10 y ears.) , are extremely washable(8000
times)ˇ˘water-proof, with strong adherance, brightness,
dirt-resistant(the coating film's self-cleaning ability), resistant t
o bacteria, fungus, and algae. They are environmentally-friendly
paints of a new era of high technology.”
http://www.htpower.com/english/news/page_1_4.htm
http://www.htpower.com/english/innovate/page_2.htm
6. Sachtoperse
“In high-quality paints and coatings, Sachtoperse® contributes to
efficient deflocking of the colored pigments. Sachtoperse® adsorbs on
the surface of the pigment, thus preventing agglomeration of the
pigment particles.”
http://www.sachtleben.de/h/e/anw/0360e.html
http://www.sachtleben.de/h/e/anw/0370e.html
Search terms used:
“coating industry” “smart paint” “smart coating”
paint coating nanotechnology nano
I hope these links would help you in your research. Before rating this
answer, please ask for a clarification if you have a question or if
you would need further information.
Thanks for visiting us.
Regards,
Easterangel-ga
Google Answers Researcher |
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