▎ 摘　　要

NOVELTY - Modified polyethylene wearable composite pipe comprises an inner tube body (400) and outer layer pipe body (200) fixedly connected with the inner layer pipe body. The outer layer pipe body and the inner layer pipe body are coaxially arranged. The support layer (300) is located between the inner layer pipe body and the outer layer pipe body. The protective layer (100) is located at the periphery of the outer layer pipe body. The protective layer comprises coating layer (101) located at the outermost side of the outer layer tube body. The glass fiber line (102) is wound on the outer layer pipe body, and the glass fiber line is coated in the coating layer. The glass fiber lines are arranged on the outer layer pipe body in multiple layers, and winding directions of the glass fiber line on the outer layer pipe body in adjacent layers are opposite. USE - Modified polyethylene wearable composite pipe for water supply and drainage of municipal and building, fire and gas conveying, chemical industry, petroleum, medical field and medium conveying. ADVANTAGE - The modified polyethylene wearable composite pipe has good hardness and wear resistance, and improved bonding strength. The coating layer is coated on the outer layer pipe body to effectively reduce the wear rate of the pipe body and improve the bonding strength, and the glass fiber wire is used as reinforcing material of reinforced plastic, which can effectively improve the strength of the coating layer. The glass fiber line is wound with multiple layers, so that the glass fibre wire can be used as a reinforcement material of the reinforced plastic to improve the hardness and the wear-resistant performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing modified polyethylene wearable composite pipe, which involves preparing basic raw material for preparing composite pipe, mixing each component in the basic raw material according to weight proportion and fully stirring and mixing, modifying the polyethylene raw material and the raw material of the coating layer, introducing the modified polyethylene raw material into the forming device, and preparing the inner layer pipe body and the outer layer pipe body through the forming device, setting supporting layer between the inner layer pipe body and the outer layer pipe body, the inner layer pipe body and the outer layer pipe body are bonded, winding glass fibre wire on the outer layer pipe body, using spraying process, spraying the coating layer raw material on the outer layer pipe body, obtaining 20-40 m of coating layer, curing for 2-3h at 30-35℃, repeating step, so that the total thickness of the coating layer is 100-200 m, curing time after the last spraying is 10-15h. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a modified polyethylene wearable composite pipe. 100Protective layer 101Coating layer 102Glass fiber line 200Outer layer pipe body 300Support layer 400Inner tube body