Outdoor / Exterior Application
Reference No. Outdoor / Exterior Application
Category: PTA-85sol, TPX-85sol, TPX-HPC
Title: Photocatalytic Self-cleaning Coating, Pollution Control
Features: Antistatic, Strong photocatalytic oxidation and Superhydrophilicity surface.
Benefit:10+ year of long lasting self-cleaning effect
Abstract:
Dirt collections (accumulation) in building exteriors have poised considerable problems for building maintenance. Cleaning of such building surface is generally done by using detergents accompanied with scrubbing, wiping and high-pressure water jet. These processes have several shortcomings such as use of chemical detergents, high consumption of energy and labor cost. These naturally lead to high maintenance cost; therefore, an effective self-cleaning coating is desirable.
In recent years, “self-cleaning” coating using photocatalytic Titanium Dioxide (TiO2) has gained considerable industry attention. With assistance of little UV light from fluorescence source or sunlight, TiO2 offers two unique properties: (a) strong oxidation power, and (b) super-hydrophilicity. The first strong oxidation power can be used to kill bacteria attached on the wall, or oxide/remove foul smell from stains in toilet (e.g., TiO2-coated tile and TiO2-coated glass are commercially available). The second super-hydrophilic property can allow dirt and stains to be easily washed away with water or by rainfall when such coating is applied to exterior surfaces.
The present invention provides a highly novel and effective technique for providing an inorganic-organic layer to serve in between a painted surface and TiO2 coating to avoid the effect of paint-chalking. This interlayer functions as a binder TiO2 particles and as well as a barrier to prevent substrate-damage from the photocatalytic reaction. Using this approach, continuous and sustained self-cleaning effects can be realized on the surface of painted aluminum panels (as shown below).
Areas of Applications
- High-rise office buildings, Commercial building, Historical building protection, Convention center, shopping malls, Industrial facility, Towel, Train Station
- Tunnel, Sound proofing walls, Roadside structure and accessory, Road sign, Reflective traffic mirror, Advertisement signs
- Landmark, Sculpture, fountain, Solar Panel, plastic panel.
- Automobiles, Marine, Train, aircraft bodies.
Target Substrate:
Ceramic Tile, Glass, Mirror, Brick, Concrete, Masonry, Metal, Stucco, Painted surface, Vinyl, acrylic and polycarbonate material, Industrial fabric and Awning etc.
Advantages
- Maintenance-free if the surfaces are being coated.
- Automatically removal of contaminated gas from vehicles, so as to improve city’s air quality.
- Environmentally friendly technology.
- Reduce the maintenance cost and clean-work’s troubles/disastrous.
Commercialization / Opportunities
- Technology and partnership is available from Green Millennium Inc.
- Interested companies are invited to submit their plans to Green Millennium Inc.
CASE STUDIES:
Location: Yahoo Dome Exterior Wall
Date of application: November, 2012
- Substrate: Tile
- Products Used: TPX-85
- Effects: Self Cleaning, Anti-soil
Location: Huis Ten Bosch Nagasaki Prefecture
Date of application: July, 2013
- Substrate: Masonry, Stone surface
- Products Used: TPX-85
- Effects: Self Cleaning, Anti-soil
Location: Universal Studio Japan
Date of application: August, 2008
- Substrate: Painted surface, Dry wall
- Products Used: PTA-85, TPX-85
- Effects: Self-Cleaning, Anti-soil
Location: Taiwan Textile Research Institute
Date of application: February, 2012
- Substrate: Tile, Glass, Concrete
- Products Used: TPX-85, TPX-HPC
- Effects: Antibacterial , Deodorizing
Location: Exterior walls of the condominium
Date of application: November, 2012
- Substrate: Glass Tile, Painted Surface
- Products Used: PTA-85, TPX-85
- Effects: Self-Cleaning, Anti-Soil
Location: Solar Panel
Date of application: December, 2012
- Substrate: Glass
- Products Used: TPX-HPC
- Effects: Self-Cleaning, Anti-Soil
