| 摘要 |
The present invention relates to a composite grounding module formed from graphite, pearlstone and vermiculite, the compound grounding module comprising: a bar-type first grounding body; a second grounding body which is integrally formed on the outer lateral side of the first grounding body; and a conductive mandrel which is connected to the first grounding body, wherein the first grounding body comprises 40-60 wt% of salts, 10-30 wt% of expanded vermiculite, 5-20 wt% of calcium chloride, 5-20 wt% of sodium silicate and 5-30 wt% of sugar, and the second grounding body comprises 5-30 wt% of expanded pearlstone, 5-30 wt% of expanded vermiculite, 10-60 wt% of graphite, 20-60 wt% of cement, 1-5 wt% of acrylic resin, 2-5 wt% of urethane resin and 5-10 wt% of sodium silicate, thereby enabling preparation of an extremely light grounding module by means of the expanded vermiculite of the first grounding body and the expanded pearlstone and expanded vermiculite of the second grounding body. |
