Novel composite steel belt as well as preparation method and application thereof

The invention belongs to the technical field of composite metal plastic pipes, and discloses a novel composite steel belt as well as a preparation method and application thereof. The composite steel belt comprises a steel belt, a resin matrix reactive compound solidification layer and an outer coated polyolefine bounding resin from inside to outside in sequence, wherein the cross section of the steel belt is flat, omega-shaped, U-shaped or arch-shaped; the thickness of the steel belt is 0.25 to 4 mm; the width of the steel belt is 25 to 800 mm; the surface of the steel belt is rough, and the anchor pattern depth of the steel belt is 15 to 200 micrometers; the thickness of the resin matrix reactive compound solidification layer is 20 to 300 micrometers; the thickness of the polyolefine bounding resin is 100 to 2000 micrometers. The novel composite steel belt has the advantages that the peel strength reaches 284 N/cm, the warm water soaking failure time at the temperature of 50 DEG C is increases by 10 to 15 times, the weathering aging failure time is prolonged by 10 to 15 times, the alternating stress bearing capacity is greatly enhanced, and the same position cannot be damaged on the whole after being subjected to 20 times of bending.