Ask The HvacMan
Air Grilles
Air Diffusers
Air Quailty
All Air Systems
All Water Systems
Building .Managament Systems ..BMS
Cooling Towers
Cooling Load Calculation
Energy Saving
Duct ,Smacna
Dampers ,Air
Dust Collection
Fire Dampers
Glass Selection
Heat Exchangers,water
Heat Recovery
Heat Tracing Systems
Hepa Filters
Hvac Applications
Humidifiers / Dehumidifiers
Insulation , Duct
Insulation , Pipe
Insulation , Sound
Nano Tech.,In Building
Occupancy Sensors
Pneumatic Conveying
Pool Ventilation
Process Piping
Radiant Heating
Refrigerant Systems
Solar Collectors
Steam Generation
Tables & Charts Gnr.
VAV Sytems
VRV Systems
Solar Collectors
Flat Plate Collectors
Evacuated Tube Collectors
Concentrating Collectors
Transpired Collectors
Solar Control Systems
Standalone Systems
Grid Connected Systems
Hybrid Systems
Back-up Systems
Solar Cells
Solar Arrays
Change Controller
Hybrid Systems
Grid Systems
Water Pumping
Using Wind Energy
Enviromental Aspects
Buyer's Guide
Save Energy
Solar Water Heating
Solar Electric Systems
Wind Turbines
Passive Solar Heating
Passive Solar Cooling
Building Material
Water Conservation
Ground Source Heat-Pumps
Green Hotels

Glass &Windows Selection


Antibacterial paint containing nano particles

An antibacterial paint containing 30 ppm of nano silver particles on a surface of an injection preform, a method for manufacturing the same, and a coating method using the same are provided. A nano silver-ethanol dispersion solution is injected into a butanol solution, while agitating it at a high speed to uniformly disperse a nano silver solution into the paint, to prepare a master batch containing nano silver particles. The master batch is injected into an Ultra Violet (UV) clear paint and is continuously agitated at a high speed for a predetermined period of time to obtain an antibacterial UV clear paint, which is used to coat the surface of an injection preform.

Nano-based antimicrobial paint is created

chemists have developed a low-cost, environmentally friendly nanotechnology for producing antimicrobial, vegetable oil-based paints.

The technique created by researchers at the City College of New York and Rice University embeds antimicrobial silver nanoparticles into the paints. Although silver's antibacterial, non-toxic properties have been known for centuries, coatings containing antimicrobial agents have failed commercially due to their high cost of production.

"We extensively worked on polyunsaturated hydrocarbon chains containing polymers/oils to devise a novel approach to nanoparticle formation," said Professor George John of CCNY, the lead author of the study.

Study co-author Professor Pulickel Ajayan of Rice University said the simplicity of the process and economics should allow the commercialization of the new paints as a versatile coating material for health and environmental applications.

"Using the same approach we should be able to produce a large variety of nanoparticle dispersions useful in applications ranging from healthcare to catalysis," added co-investigator Ashavani Kumar, a postdoctoral research associate at Rice.

The scientists said the nanoparticle-embedded coating can be applied as are traditional paints to such surfaces as metal, wood, polymers, glass and ceramics


Application of silica-containing nano-composite emulsion to wall paint : A new environmentally safe paint of high performance

A new emulsion-type paint was prepared by utilizing a nano-composite emulsion (NCE), which contained nano-size particles (ca. 60 nm in diameter) consisting of silica (inorganic core, ca. 30 nm in diameter) and polyacrylate (organic shell), and evaluated as wall paint. By applying NCE for the wall paint, about 35 wt.% of the organic content in the paint could be reduced in comparison with the commodity emulsion-type paint, which is highly effective to save the petroleum resources. The basic properties of the white NCE paint film on gloss, surface hardness, adhesion, and solvent resistance were evaluated and compared with those of acrylic emulsion-type paints as well as those of silica-containing paints which were prepared simply by blending the acrylic emulsion with silica sol. The NCE paint was especially excellent in solvent resistance. Then the practical tests were performed to evaluate its appropriateness as wall paint, which clarified the excellent antipollution property and the high flame resistance of the NCE paint.





  Discuss on the Message Board
Legionnare Disease
Energy Saving
Control Software
Hotel Design Books

Hotel Design