Deeply buried modified polypropylene traction tube

Abstract

The invention discloses a deeply buried modified polypropylene traction tube which is prepared from a polypropylene special pipeline and a polypropylene toughening modifier, wherein the polypropylene toughening modifier comprises the following components in percentage by mass: 15-50wt.% of polyethylene, 15-50wt.% of polypropylene, 20-55wt.% of an ethylene and octylene copolymer, 0.1-2.0wt.% of an initiator, 0.05-1.0wt.% of an antioxidant and 0.1-1wt.% of calcium stearate. According to the invention, the tube solves the problem that tubes are easily flattened and broken in a tubular product construction process such as non-excavation, and can enter the ground for over 18 meters for traction construction, so that the tube is suitable for construction of cross rivers, buildings, railways, roads and the like under the condition of non- excavation on pavement, the tube is time-saving and labor-saving, the work efficiency is improved, and safety of the product is improved.

Description

technical field [0001] The invention relates to a deep-buried modified polypropylene traction tube. Background technique [0002] The pipelines used in the current municipal construction are more difficult to be installed on the road surface, crossing the river, under the building, railway, highway and other places. Most of them adopt methods such as excavation, elevation, and demolition, which have a long construction period and high cost. At present, HDPE and PP pipes are tried to be used for trenchless construction, but the low tensile strength and poor rigidity of the pipes need to be solved, especially in deep underground construction. [0003] At present, my country already has the technology and ability to manufacture PP pipes, and the technology and ability to weld pipes have also been solved. However, pipes are prone to flattening and fracture during deep-buried construction. Our invention just solves this problem. Contents of the invention [0004] The technica...

AI Technical Summary

Problems solved by technology

[0002] The pipelines currently used in municipal construction are difficult to install on roads, across rivers, under buildings, railways, highways, etc.

Most of them use methods such as excavation, elevated, demolition, etc., with long construction period and high cost

At present, we try to use HDPE and PP pipes for trenchless construction, but we need to solve the low tensile strength and poor rigidity of the pipes, especially in deep underground construction.

[0003] At present, my country already has the technology and ability to manufacture PP pipes, and the technology and ability to weld pipes have also been solved. However, pipes are prone to flattening and fracture during deep-buried construction. Our invention just solves this problem.