HDPE (High-Density Polyethylene) double-wall corrugated pipe

Abstract

The invention discloses an HDPE (High-Density Polyethylene) double-wall corrugated pipe. The walls of the HDPE double-wall corrugated pipe are respectively composed of an inner layer and an outer layer, wherein the outer layer comprises the following components in parts by weight: 50-80 parts of HDPE resin, 15-30 parts of special reinforced master batches, 10-25 parts of special modified master batches, 2-5 parts of moisture absorption master batches and 1-3 parts of color master batches, and the inner layer comprises the following components in parts by weight: 50-80 parts of HDPE resin, 15-30 parts of metallocene linear low-density polyethylene, 20-45 parts of special modified master batches, 1-3 parts of moisture absorption master batches and 1-3 parts of color master batches. The HDPE double-wall corrugated pipe provided by the invention has high ring stiffness, all other performance indexes can be up to the standard, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an HDPE double-wall corrugated pipe. Background technique [0002] At present, municipal sewage pipes include new types of pipes such as cement culvert pipes, HDPE double-wall corrugated pipes, and vacuum winding pipes. Cement pipes have been gradually replaced by plastic pipes. HDPE double-wall corrugated pipes are generally used in the current market for related municipal sewage pipes. Due to Domestic enterprises producing plastic pipes are increasing year by year, making the market competition very fierce. In order to compete for market share, many manufacturers reduce sellers and ignore product quality. In terms of the excellent performance of original products, due to lack of test verification, pipes are brittle and environmentally friendly. The rigidity and ring flexibility cannot meet the standard requirements, resulting in related accidents such as ...

AI Technical Summary

Problems solved by technology

[0002] At present, municipal sewage pipes include new types of pipes such as cement culvert pipes, HDPE double-wall corrugated pipes, and vacuum winding pipes. Cement pipes have been gradually replaced by plastic pipes. HDPE double-wall corrugated pipes are generally used in the current market for related municipal sewage pipes. Due to Domestic enterprises producing plastic pipes are increasing year by year, making the market competition very fierce. In order to compete for market share, many manufacturers reduce sellers and ignore product quality. In terms of the excellent performance of original products, due to lack of test verification, pipes are brittle and environmentally friendly. The rigidity and ring flexibility cannot meet the standard requirements, resulting in related accidents such as project rework and delay in construction period, resulting in a serious waste of social resources