Abstract:
Energy crisis is the major problem of the modern era. In buildings cooling
requirements are due to solar heat gain through windows. To overcome this
problem, there are variety of films have been made by different methods and
using different polymers. In this research a solution casting method used to
fabricate low-emissivity window films using flexible polymeric substrate
incorporated by metal dust. These window films further characterized by using
Scanning Electron Microscopy, X-rays Diffraction, UV-Vis-NIR Spectroscopy,
Heat radiometer test , Contact angle and Mechanical testing to examine the
morphology, phase, absorption, transmittance, reflectance, heat flow,
hydrophobic/hydrophilic nature and mechanical strength . Fabricated films show
emissivity values of 3.2 W/m
2 K to 3.3 W/m
2. K for Al/CA and 3.1 W/m
2 K to 3.8
W/m2 K for Sn/CA whereas solar radiations reflectance about 80% in infrared region.
The characterized low emissivity films incorporated by metal dust are tinted,
uniform, and flexible hydrophilic films exhibits excellent mechanical performance
for window application
