| abstract |
The invention relates to a film-coated metal plate, which comprises a metal plate, a high-molecular adhesive film layer on the metal plate and a TPO layer on the high-molecular adhesive film layer; the TPO layer comprises the following components: 20-100 parts of ethylene-olefin copolymer; 10-40 parts of polypropylene; 5-30 parts of titanium dioxide; 0-40 parts of a filler; 0.1-2 parts of antioxidant; 0.1-2 parts of anti-ultraviolet agent. Connect into an organic whole through polymer bonding glued membrane layer with TPO layer and metal sheet, production simple process, one shot forming, construction convenience, the flexible operation effectively practices thrift construction period, and the environmental protection problem that adopts traditional adhesive to relate to is effectively avoided to polymer bonding glued membrane layer. The metal roof board with TPO layer can be designed to have a durability which is guaranteed for 10 years at the beginning of the conventional durability. The TPO layers of the adjacent steel plates are connected in a welding mode, and the problem that the connection strength is reduced due to the fact that rivets are exposed outside and are easily corroded is solved. |