The invention discloses a
composite plate with
electromagnetic shielding and antistatic effects and a production process, the product is formed by combining a
metal foil (or net) 1, a glass
fibrous body 2, a
flame-retardant and conducting paste layer 3, a color
overlay layer 4 and
flame-retardant and heat-resistant
adhesive, and the production process comprises eight steps, namely (1) selecting and preparing materials, (2) making sheet stocks, (3) impregnating the paste layer, (4) preparing semi-finished products, (5) aging
processing, (6) curing molding, (7) in-mold coloring and (8) warehousing finished products. The
composite plate is a glass-
fiber fabric reinforced sandwiched
metal foil (or net)
composite plate which is molded by impregnating and pressing
unsaturated polyester, which has good
electromagnetic shielding function, polymerized substance on the
surface layer is doped with conducting particles and conducting
fiber, thus forming a permanently antistatic working surface of the
electric resistivity between 105
ohm and 109
ohm, the longitudinal tensile strength and the transverse tensile strength are higher than that of an aluminum
alloy plate and are equivalent to that of a stainless steel plate, the excellent
flame retardancy can achieve UL94 to V0 grade, and the composite plate can be used as inner decoration of a
machine room of precise microelectronic equipment. When the color is coated on the surface, no
solvent is contained, and the color
coating is in synchronization with mold pressing, compared with
coating paint after molding, the production process is energy-saving and environmental-friendly, and selection of the layer material is various and free, thus meeting the demands of various environments and having wide market prospect.