| abstract |
The utility model discloses a sandwich structure combined material board, including the laminboard layer to and respectively with the laminboard layer about surface bonding fire -retardant combined material layer as an organic whole, and respectively with fire -retardant combined material layer about surface bonding sticky dielectric layer as an organic whole, still including respectively with sticky dielectric layer about surface bonding autohension polyvinylidene fluoride thin layer as an organic whole. Sandwich structure combined material board, glue the upper and lower surface of covering in sandwich structure combined material board simultaneously with autohension polyvinylidene fluoride film, make sandwich structure combined material board have splendid ageing resistance, wear -resisting, heat -resisting, corrosion -resistant to have characteristics such as high mechanical strength, high tenacity, high dielectric strength, can be applicable to the open air, in the ultraviolet environment that excels in, because the laminboard layer adopts fire -retardant thermoplastic resin board or fire -retardant one -way preimpregnation piece to retrieve broken material extruded plate, can make sandwich structure combined material board realize subtracting heavy 10wt%~60wt% and reduce cost's purpose simultaneously. |