Novel modified polypropylene traction pipe

Abstract

The invention discloses a novel modified polypropylene traction pipe. The novel modified polypropylene traction pipe is prepared from a special polypropylene pipeline material and a polypropylene toughening modifier. The polypropylene toughening modifier is prepared from, by mass, 15-50wt.% of polyvinyl chloride, 15-50wt.% of polypropylene, 20-55wt.% of lead sulfate tribasic, 0.1-2.0wt.% of methylmethacrylate-butadiene-styrene, 0.05-1.0wt.% of an antioxidant and 0.1-1wt.% of calcium stearate. The novel modified polypropylene traction pipe solves the problems of flattening and fracturing likely to occur in the non-excavation pipeline construction process and the like, can be lowered into the ground by 18 m or above for traction construction and is suitable for construction of rivers, buildings, railways, highways and the like without pavement excavation conditions, time and labor are saved, and working efficiency and product safety are improved.

Description

technical field [0001] The invention relates to a novel 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 technical prob...

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 t...