UHMWPE composite double-wall corrugated pipe

A double-wall corrugated pipe and nucleating agent technology, which is applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc., can solve the problems of insufficient rigidity and poor toughness of double-wall corrugated pipes, and achieve high strength and wear resistance. , The effect of improving ring flexibility and high wear resistance

Pending Publication Date: 2021-09-17
福建亚通新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the change of the application environment, PE double-wall corrugated pipe also has the problem of insufficient rigidity or poor toughness. In addition to optimizing the structure, the optimization of the formula system is the main means of changing the pipe.

Method used

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  • UHMWPE composite double-wall corrugated pipe

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] The UHMWPE composite double-wall corrugated pipe of this embodiment includes an inner wall and an outer wall, and the inner wall adopts the following raw material formula in parts by weight: 100 parts of low-density polyethylene, 5 parts of color masterbatch, 5 parts of moisture absorbent, and 4 parts of antioxidant masterbatch. The outer wall adopts the following raw material proportions by weight: 30 parts of ultra-high molecular weight polyethylene, 70 parts of high-density polyethylene, 12 parts of reinforced masterbatch, 2 parts of sodium stearate, 5 parts of black masterbatch, 4 parts of anti-oxidation masterbatch, 5 parts of hygroscopic agent.

[0025] The molecular weight of the ultra-high molecular weight polyethylene is 1.5 million; the particle size of the sodium stearate is 50nm.

[0026] The preparation method of this embodiment adopts the co-extrusion technology of two extruders, and the steps are as follows.

[0027] Stir the inner wall material at a hig...

Embodiment 2

[0030] The UHMWPE composite double-wall corrugated pipe of this embodiment includes an inner wall and an outer wall, and the inner wall adopts the following raw material formula in parts by weight: 100 parts of low-density polyethylene, 5 parts of color masterbatch, 5 parts of moisture absorbent, and 4 parts of antioxidant masterbatch. The outer wall adopts the following raw material proportions by weight: 50 parts of ultra-high molecular weight polyethylene, 70 parts of high-density polyethylene, 10 parts of reinforced masterbatch, 1 part of wollastonite, 5 parts of black masterbatch, 4 parts of anti-oxidation masterbatch, moisture absorption 5 doses.

[0031] The specific implementation process steps are the same as those described in Example 1.

[0032] The UHMWPE composite double-wall corrugated pipe provided by the present invention achieves the purpose of improving the rigidity and wear resistance of the outer wall ring of the PE double-wall corrugated pipe and the flexi...

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Abstract

The invention relates to the field of plastic pipes, and provides a UHMWPE composite double-wall corrugated pipe, which comprises an inner wall and an outer wall. The inner wall is prepared from the following raw materials in parts by weight: 100 to 120 parts of low-density polyethylene, 3 to 5 parts of color master batch, 4 to 6 parts of a moisture absorbent and 4 to 6 parts of antioxidant master batch. The outer wall is prepared from the following raw materials in parts by weight: 30 to 40 parts of ultra-high molecular weight polyethylene, 70 to 80 parts of high-density polyethylene, 10 to 20 parts of reinforced master batch, 1 to 2 parts of a nucleating agent, 3 to 5 parts of black color master batch, 4 to 6 parts of antioxidant master batch and 4 to 6 parts of a moisture absorbent. According to the UHMWPE composite double-wall corrugated pipe, the ring stiffness and the wear resistance are improved, and the application field of the pipe is expanded.

Description

technical field [0001] The invention relates to the field of plastic pipes, in particular to a UHMWPE composite double-wall corrugated pipe. Background technique [0002] Due to its special structural design, the PE double-wall corrugated pipe has a straight inner wall and a ring-shaped corrugated outer wall, which reduces the material consumption and endows the pipe with excellent performance. It is one of the most widely used pipes in the field of drainage and sewage. It is widely used in Municipal engineering underground buried rain and sewage discharge, farmland water conservancy irrigation projects, chemical engineering, communication cable protection sleeves, etc. [0003] With the change of the application environment, PE double-wall corrugated pipe also has the problem of insufficient rigidity or poor toughness. In addition to optimizing the structure, the optimization of the formula system is the main means of changing the pipe. [0004] Ultra-high molecular weight...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K5/098C08K3/34F16L9/133
CPCC08L23/06F16L9/133C08L2203/18C08L2207/068C08L2207/066C08L2207/062C08K2201/011C08K5/098C08K3/34
Inventor 马鑫高洁陈晓梅彭伏弟李文权
Owner 福建亚通新材料科技股份有限公司
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