Title |
Properties and Shielding Efficiency of Electromagnetic Wave Absorbing Inorganic Paint Using Carbon |
Authors |
Lee Sea Hyun ; Shim Jong Woo ; Park Dong Cheol ; Jung Moon Young |
Keywords |
Electromagnetic Wave ; Inorganic Paint ; Electromagnetic Wave Absorbing Paint |
Abstract |
As the use of various electronic equipments has been increased recently according to industrialization and information network establishment, concern about electromagnetic wave exposed environment has also been increased. Therefore, this study aims to verify electromagnetic wave absorbing effects of inorganic paint that is made of carbon, electro-conductive materials with regard to its physical characteristics, its electromagnetic wave absorbing rate through a mock-up test for proving its effects in the indoor condition. The results are as follows: The results of running tests on electromagnetic wave absorbing inorganic paints for checking their requirements as painting material such as softness change, adherence degree, stability in low temperature, resistance to fine crack, resistance to washing, alkali-resistance, discoloration-resistance, etc. show that inorganic paints have the physical characteristics meeting the requirements for painting materials. In addition, it shows that the electromagnetic wave absorbing effect, in line with the number of paintings and the thickness of paintings, secures 75~89% of efficiency. And the mock-up test shows that the electromagnetic wave absorbing effect inside building is directly proportional to the distance from the source of electromagnetic wave such as electronic equipments. Also, it shows that if inorganic paints are applied on the rear and side of the source of electromagnetic wave, the efficiency of electromagnetic wave absorbing effect amounts to 55% at the center of room, and increasing up to 85% according to the increase of the scope of spreading inorganic paints. |