| 摘要 |
The present invention relates to an electromagnetic wave shielding composition. More specifically, the present invention relates to an electromagnetic wave shielding composition which can prevent damage to a human body or a variety of instrument caused by electromagnetic waves by confining the electromagnetic waves generated from an electric energy flow to an electromagnetic wave absorber; and which is made with gel prepared by impregnating waste dust of an electric furnace chimney such as ferrite, waste iron oxide such as steelmaking sludge, and dust waste containing heavy metal, i.e. densener residues remaining in an electric heating furnace, in a liquid; and which is capable of not only reducing environmental pollution by recycling the waste iron oxide such as steelmaking sludge generated during a steelmaking process and the dust containing the heavy metal, i.e. the densener residues, which should be heated for incineration, not needing to treat as waste, bury, or mix the same in asphalt concrete, but also reducing or avoiding the electromagnetic waves. To this end, provided is the electromagnetic wave shielding composition comprises the mixture of the waste dust of the electric furnace chimney, the steelmaking sludge, the heavy metal containing densener residues in the electric heating furnace, and a gel-type mixed liquid in which the mixture is impregnated. |
