PP-NACC nano-scale active calcium carbonate blended polypropylene flaring reinforced double-wall corrugated pipe

Abstract

The invention discloses a PP-NACC nano-scale active calcium carbonate blended polypropylene flaring reinforced double-wall corrugated pipe comprising the components in parts by weight: 50 to 70 parts of polypropylene powder, 20 to 35 parts of nano-scale active calcium carbonate, 8 to 20 parts of ethylene propylene diene monomer, 1 to 3 parts of a phosphite ester antioxidant, 1 to 3 parts of a compatilizer, 1 part of a coloring agent and 1 to 3 parts of a beta-crystal nucleating agent. The pipe structure comprises a pipe main body, a flaring is formed in the end of the pipe main body, and a connecting part is arranged between the flaring and the pipe main body; outer corrugated protective layers are arranged on the outer walls of the pipe main body, the flaring and the connecting part; and an anti-collision blocking strip is arranged on the inner wall of the connecting part. Through reasonable matching of the components in the composition, the respective effects are synergistically exerted to the maximum extent, the strength and impact resistance of the whole pipe are enhanced, and deformation and damage are not prone to occurring; and through the structural design of the outer corrugated protective layers and the anti-collision barrier strip, the strength and the impact resistance of the pipe are further improved.

Description

technical field [0001] The invention relates to the technical field of corrugated pipe processing, in particular to a double-wall corrugated pipe raw material composition, a preparation method thereof, and a pipe structure. Background technique [0002] The current municipal sewage corrugated pipes use polyethylene or polypropylene as raw materials, and are double-walled hollow corrugated pipes made by extrusion molding technology, which are widely used in municipal drainage and industrial sewage. However, polyethylene has poor performance in terms of material strength and is prone to deformation. Polypropylene has poor performance on low temperature brittleness and poor toughness. [0003] The existing double-wall bellows has a scientific structure in the main part of the pipe and exhibits good impact resistance performance, but the structure of the connection between the main body of the pipe and the flared part of the pipe and the flared part are unscientific. When the ...

AI Technical Summary

Problems solved by technology

However, polyethylene has poor performance in terms of material strength and is prone to deformation

Polypropylene has poor performance on low temperature brittleness and poor toughness

[0003] The existing double-wall corrugated pipe has a scientific structure in the main part of the pipe and shows good impact resistance performance, but the connection between the main body of the pipe and the flared part of the pipe and the structure of the flared part are unscientific

When the pipe is installed, it is necessary to use the bellows installer for tensioning work. The iron installer needs to act on the main body of the pipe and the flared joint, which often leads to damage to the joint

When the other end of the pipe is inserted into the flaring, the strength cannot be grasped, so that the pipe port will cause collision and damage to the inner wall of the pipe flaring

There is no outer hollow corrugated protective layer at the flaring of the existing pipe, which will cause deformation and damage at the flaring during transportation and construction

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