Transcript Nanotechnology in the construction industry

Functional coatings for
glass
Harry Stulajter
CEO
Nanovations Pty Ltd
1
Definition: What is Nanotechnology?
• The capacity to create functional materials, devices and systems
with novel functions and properties through the control of matter at the
Nano-scale.
•
Nano-scale means dimensions of roughly 1 to 100 Nanometre, where
unique phenomena enable novel applications’
•
Eight to ten atoms span one Nanometre.(Nm)
•
Nanotechnology glass coatings are between 20 – 30 Nm for
photocatalytic Tio2 and 20 – 40 Nm Silica
The average float glass is 5,000,000 Nm thick
2
Nanovations products can be used on buildings
and constructions glass for external application
Surface
The technology can be
used for surface
applications:
•
•
•
•
•
Windows
Facade panels
Balustrades
Sky lights
Glass roofs
Functions
Benefits
Materials can improve:
•
•
•
•
•
•
Cleaning ability
Scratch resistance
Asset protection
Shield against Pollution
Chemical resistant
Anti dust
•
•
•
•
•
3
Can be easily
reapplied
Cost effective
Durable
Does not react with
other materials
Speeds up cleaning
Nature as a template
Our ability to understand and control surface wetting has dramatically
improved since our ability to observe and fabricate Nano scale surface
topographies has been developed
Nature
Technology
4
Products and Technology
5
High Performance Glass Coatings
Nanovations is the technology
leader in the development
of advanced glass coating solutions
for the construction industry.
World first Infra-red cured coating application
at a
building side in Sydney / Australia
Problem solutions for Macquarie Bank,
Sydney
6
Smart Surface Glass Coatings
Demonstration of the self cleaning effect on a Lotus
leaf and on a glass slide coated with NG 1010.
Water droplets take up dirt and dust.
The dirt is more attracted to the water than to the
substrate.
7
Different behaviours of water on uncoated and coated glass.
8
Glass Cleaning technology using sub-micron
abrasive glass cleaner technology.
1000 x
1000 x
Mineral deposits on glass, before and after the cleaning with Nanovations CL 40/ CL50.
This is Nano-scale deep cleaning.
The coating performance on the well prepared glass is significantly improved.
Cleaning solutions help to solve problems prior to the application.
Nanovations is a leader manufacturer of abrasive glass cleaning products.
9
Protect glass from mineral deposits
Coated
Coated
The non coated glass shows mineral deposits appearing with hard water,
high pollution, salt spray or rundown marks from mineral building
materials.
The Coated glass is protected against staining.
Problem solutions for Macquarie Bank Sydney
10
Problems that can be easy removed or avoided
• Ru
Pollution bleed from sealant
Salt spray staining river boat NY
Hard water / Acid Rain spots
Mineral deposit
11
Hydrophobic Glass
coatings
12
Factory applied Photocatalytic TiO2 coating
vs
Nanovations NG 1314 NG1010
Hydrophilic vs Hydrophobic
Hydrophilic
NG 1314/ NG1010
Protects glass during construction ?
No
Yes
Can be reapplied on site?
No
Yes
Compatible with Silicone /PU sealants ?
No
Yes
Works against inorganic and organic dirt ?
No
Yes
Is the technology cost effective
No
Yes
Scratch resistant
limited
Yes
13
UV protection without the use of pigments
14
Nanovations coating changes the surface tension.
Dirt is more attracted to the water than to the surface and
is easy to wash off or is removed naturally by rain.
15
Nanovations NG 1314 is the hardest wearing
room temperature cured coating on the market
16
Hardness
Up to 7 Mohs
Heat resistant
Up to 300 C
Chemical resistant
pH 2 – pH 13
Wet scrub resistant
(cleaning cycles simulation)
80,000 x with
Brush
Conventional coatings create smooth protective
layers that fill the microscopic surface pores.
17
In contrast, Nanovations products create an ultra thin
coating by covering and penetrating the Nano scale
surface structure and pores of the glass.
18
With the Nanovations range of products, the dirt has a significant
smaller contact area with the substrate. Adhesion is low, dirt can be
removed without much force. The surface is easy to clean.
Dirt
Dirt
On conventional coatings the contact area towards the
surface is much larger . Easy to clean effect is provided
via a non stick chemical and not via a reduction in
contact area.
19
Dust accumulation is significantly reduced when
the surface has been treated.
Uncoated
Coated with NG 1314
20
In situations where dust and dirt cannot be removed via wind
action or ,exposure to clean rain, rinsing with clean water will
remove large portions of the dirt and dust contaminations .
21
Coating performance
22
Testing: Abrasive durability testing
Wet scrub resistance tester. (Taber System )
Contact angle meter. After every 1000 cycles
2 coated glass panels with brushes or abrasive sponge
The contact angle is measured . This is used to
testing .
measure the durability of the coatings.
23
Testing: Exposed weathering testing
Exposed to the harshest environment in the Allunga
Laboratory in Townsville, Queensland where there are
some of the highest UV radiation levels in the world.
24
Exposed to the Australian sun in Townsville,
Queensland.
Projects
25
Project: Pinnacle Apartment Milsons Point
• Connell Mott MacDonald’s
project for Multiplex, Sydney.
The Pinnacle is the first
high rise building in the world
where a nanotechnology glass
protection system was used
on the complete building
to prevent glass contaminations.
26
Macquarie Bank , Sydney Australia
Excessive rundown marks and glass contaminations.
27
Latitude Sydney
Glass contamination from construction
work.
The complete building is affected.
Vision is disrupted and the glass
cannot be cleaned anymore.
28
The Hyde Tower, Sydney.
Glass contamination due to run down
from facade elements.
29
The Gulf Hotel Bahrain
Test panel after 3 months
exposure .
The facade glass is coated with
reflective metal coating
(internally).
30
Company Profile
31
Profile
About Nanovations:
The business was established in 2002.
In 2006 the group R&D and manufacturing operation was combined under the
Nanovations brand.
The team of Nanovations is now the only manufacturer of colloidal silica sol gel
coatings for glass, in the southern hemisphere.
In 2005, the founding team members won an award for the best new product at the
DesignEX Tradeshow in Sydney. In 2006 the first high rise building in the world was
coated with Nanovations glass coatings. Some of the buildings treated in the past, are
among the longest serving Nano coated glass surfaces on the market.
Exposed to the harsh Australian environment, the coatings have proven their
reliability for over 10 years. No other company can offer such a track record.
Nanovations collaborates with global companies, research partners and universities
for R& D to develop new markets in this area of growth.
32
Customer world wide
Nanovations exports more than 95% of all products manufactured to more
than 40 countries.
33
Contact Details:
Harry Stulajter
Email: [email protected]
Website: www.nanovations.com.au
34