Explosion-proof electric appliance BMC material

Abstract

The invention discloses an explosion-proof electric appliance BMC material which is prepared from the following components in parts by weight: 90 to 95 parts of unsaturated resin, 15 to 20 parts of shrinking agent, 190 to 195 parts of flame retardant, 78 to 82 parts of glass fiber, 1 to 3 parts of initiator, 1 to 3 parts of curing agent, 0.1 to 0.3 part of inorganic filler, 0.2 to 0.7 part of polymerization inhibitor, 4 to 7 parts of release agent, 6 to 9 parts of conductive black and 1 to 3 parts of extra-black pigment. Compared with the prior art, the SMC material has the advantages that byadding the conductive substance into the formula, the surface resistivity of the SMC material can be reduced, the static electricity conduction function is realized, the SMC material is used for an electric appliance shell, static electricity is not accumulated in the electric appliance shell, and electric sparks are avoided, so that the explosion-proof requirement is met, and the cost is far lower than that of the traditional explosion-proof material.

Description

technical field [0001] The invention belongs to the field of composite insulating materials, and in particular relates to a BMC material for explosion-proof electrical appliances. Background technique [0002] BMC material, that is, unsaturated polyester glass fiber reinforced molding compound, which is mainly a thermosetting material made of unsaturated polyester resin, low shrinkage additives, initiators, fillers, reinforced chopped fibers and other raw materials through physical mixing. . It can be applied to a variety of thermoforming processes such as molding, injection, and transfer. The products have the characteristics of high mechanical strength, high temperature resistance, smooth surface, and flame retardancy. Excellent mechanical and electrical properties make it widely used in automobile, construction, electrical appliances, instrumentation and other industries. Such as car side deflectors, car bumpers, car engine noise shielding boxes, car headlight reflector...

AI Technical Summary

Problems solved by technology

The composite conductive BMC plastics currently on the market still have many deficiencies in the explosion-proof function, and the safety of their use cannot be guaranteed.