| 摘要 |
PURPOSE: An electromagnetic wave shielding material is provided to emit a high far-infrared ray at a temperature of 30°C - 40°C and to effectively shield or absorb the electromagnetic wave emitted from the communication systems or the electromagnetic products. CONSTITUTION: The electromagnetic wave shielding material is composed of far infrared ray emitting succession metal oxide and 85-97 weight percent of synthetic resin. The far infrared ray emitting succession metal oxide is composed of Fe of 60-70 weight percent, Mn of 20-35 weight percent, Cu of 11 weight percent, Ni of 1.2-2.1 weight percent, Co of 1.2-2.0 weight percent, Si of 0.1-3 weight percent, Pt of 0.05-0.15 weight percent, and Nb2O3 0.01-0.15 weight percent.
|
