▎ 摘　　要

NOVELTY - The utility model claims a high temperature type polypropylene bonding layer special for galvanized tube, relating to the technical field of polypropylene bonding layer, comprising a polypropylene layer bonding body, the polypropylene layer bonding body comprises a high temperature resistant fire-proof layer, a waterproof layer and a tensile layer, the bottom of the high temperature resistant fireproof layer is set on the top of the waterproof layer, the bottom of the waterproof layer is set at the bottom of the tensile layer. The utility model through flame retardant coating, flame retardant fibre layer and graphite fibre fireproof layer; the high type polypropylene bonding, improving the flame retardance, at the same time, through the rock wool fibre layer, radiating groove and graphene radiating block; quickly discharging the heat, avoiding the polypropylene bonding is inflammable polymer, when using at high temperature, it is easy to make it melt and flammability, causing the problem of poor safety in use, so as to improve the high temperature resistance and fire resistance of the polypropylene bonding at the same time, it improves the safety of the polypropylene bonding the use of the layer of the polypropylene.