Abstract
Electromagnetic wave absorption characteristics and electrical resistivities of the unsaturated polyester specimens containing 20-60 mass% of Bincho-charcoal and 10-42.5 mass% of bamboo charcoal powders were measured. The specimens containing 33.3-50.0% of Bincho-charcoal powder absorbed remarkably the electromagnetic wave of the frequency range of 2.5-3.5 GHz and the specimens containing 12.1-18.0% of bamboo charcoal powder also absorbed remarkably that of the frequency range of 4.0-15 GHz. The specimens which showed the remarkable absorptions had the electrical resistivities of the range of 103-102Ω · cm and therefore these electrical resistivity values seems to have been suitable for converting the energy of the electromagnetic wave at the above frequency range into the energy of heat.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
