| 摘要 |
Provided are a water vein barrier composition, and a method for using the composition to interfere the waver vein or electromagnetic wave in the case of an electronic device. The water vein barrier composition comprises 60-90 wt% of a cinnabar fine powder which comprises HgS as a main component and has an average diameter of 100-500 mesh; 5-20 wt% of a hardwood charcoal fine powder which has an average diameter of 100-300 mesh; and 5-20 wt% of any one metal powder selected from the group consisting of gold, silver and copper. The composition is mixed with an aqueous paint or an oily paint and the obtained mixture is coated on a paper or synthetic resin sheet. Also the composition is mixed with a synthetic resin and the obtained mixture is injected to make the case of an electronic device. |
