Colored Coating Materials with Spectrally Selective Reflectance for Woodland Camouflage Textile Fabrics

The camouflage effect aims to reproduce natural or artificial surroundings in terms of color, [...]

Structurally colored coating films with tunable iridescence fabricated via cathodic electrophoretic deposition of silica particles

Structurally colored coatings with and without iridescence can be fabricated by varying pH of coating sols for cathodic electrophoretic deposition.

COMPARISON ON COLORED COATING FOR ASPHALT AND CONCRETE PAVEMENT BASED ON THERMAL PERFORMANCE AND COOLING EFFECT

In tropical climate, pavement surface temperature could reach up higher than the air temperature due to solar-energy absorption by pavement during the daytime. Colored ground surface such as in pedestrian walkway, parking lot, and bicycle track may be able to reduce the heat absorbed by the pavements. This paper reports the thermal performance of five different colors of coating applied at asphalt and concrete pavement surface. In order to investigate the thermal performance and solar reflectance of the colored coating pavement, infrared thermometer and solar power meter as well as thermal imager procedure were used. From the statistical analysis, it was found that all the colored coating on asphalt and concrete sample demonstrate lower surface temperature compared to conventional or uncoated asphalt and concrete. The highest surface temperature reduction and solar reflectance recorded was for the white coated asphalt sample was 17°C and 0.61, while for the white coated concrete sample was 10°C and 0.78. ENVI-met simulation is used for evaluating the thermal impact of applying the samples in site study. This study can assist in choosing more appropriate colored coatings for ground surface of the urban environment (pedestrian walkway, parking lot, plaza, etc.), and thus contribute to the reduction of the air temperature due to the heat-transfer phenomena as well as improve outdoor thermal comfort and cityscape appearance.

Preparation of a self-developed chrome-free colored coating based on a titanium conversion coating on 6063 Al alloy

A new conversion coating improved via the combination of a self-developed Mannich base and hexafluorotitanic acid has been studied and compared with chromate conversion coatings and coatings without the Mannich base.

Study of Casting Self-Colored Liquid Crystalline Solid Films of Hydroxypropyl Cellulose

Solutions of lyotropic cholesteric liquid crystalline hydroxypropyl cellulose (HPC) in water would be self-colored due to the selective reflection of visible light, depending on the solution concentration. Colored coating of the liquid crystalline aqueous HPC solutions was attempted to apply. HPC solid films were found which could cast from the liquid crystalline solutions at different conditions such as solution concentration and different drying temperature. Experiments show that both solution concentration and cooling velocity play an important effect in controlling the color of HPC films.