High-modulus insulating flame-retardant pp double-wall corrugated pipe and preparation method thereof

A double-wall corrugated pipe and corrugated pipe technology, applied in the field of corrugated pipes, can solve problems such as inconvenient removal of burrs, large cooling water consumption, and injury to staff, and achieve the effects of fast and convenient cooling, avoiding injuries, and saving consumption

Pending Publication Date: 2021-04-23
ANHUI JIELANTE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-modulus insulating flame-retardant pp double-wall corrugated pipe and its preparation method, which solves the problem of slow cooling speed, larg

Method used

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  • High-modulus insulating flame-retardant pp double-wall corrugated pipe and preparation method thereof
  • High-modulus insulating flame-retardant pp double-wall corrugated pipe and preparation method thereof
  • High-modulus insulating flame-retardant pp double-wall corrugated pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0039] Example 1

[0040] like Figure 1-4 As shown, a high modulus insulating flame retardant pp double-wall corrugated pipe, the corrugated pipe is prepared by the following raw materials in parts by mass:

[0041] 42 parts of matrix material, 2 parts of ethylene octene copolymer or olefin block copolymer, 2 parts of high-modulus impact-resistant filling masterbatch, and 0.7 part of heat-resistant, insulating and flame-retardant masterbatch.

[0042] The high-modulus impact-resistant filling masterbatch is made of polypropylene, PET, ultra-high molecular weight polyethylene, nano-modified talc, and glass fiber microbeads in a mass ratio of 4:2.5:3:0.1:0.3, and then extruded. granulation is obtained.

[0043] A preparation method of a high-modulus insulating flame-retardant pp double-wall corrugated pipe, the method specifically comprises the following steps:

[0044] Step 1. Mix one or any ratio of the matrix material, ethylene octene copolymer and olefin block copolymer,...

Example Embodiment

[0056] Example 2

[0057] like Figure 1-4 As shown, a high modulus insulating flame retardant pp double-wall corrugated pipe, the corrugated pipe is prepared by the following raw materials in parts by mass:

[0058] 48 parts of matrix material, 5 parts of ethylene octene copolymer or olefin block copolymer, 10 parts of high-modulus impact-resistant filling masterbatch, and 0.9 part of heat-resistant, insulating and flame-retardant functional masterbatch.

[0059] The high-modulus impact-resistant filling masterbatch is made of polypropylene, PET, ultra-high molecular weight polyethylene, nano-modified talc, and glass fiber microbeads in a mass ratio of 4:2.5:3:0.1:0.3, and then extruded. granulation is obtained.

[0060] A preparation method of a high-modulus insulating flame-retardant pp double-wall corrugated pipe, the method specifically comprises the following steps:

[0061] Step 1. Mix one or any ratio of the matrix material, ethylene octene copolymer and olefin bloc...

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Abstract

The invention discloses a high-modulus insulating flame-retardant pp double-wall corrugated pipe and a preparation method thereof. The preparation method of the corrugated pipe comprises the steps that a corrugated pipe green body is prepared through double-layer co-extrusion and composite extrusion of an extruder, the corrugated pipe green body penetrates through a rotary drum and a cooling base of a corrugated pipe machining device, a gear motor drives the corrugated pipe green body to rotate, cooling water is sprayed to the whole peripheral surface of the corrugated pipe blank to cool the corrugated pipe blank, the corrugated pipe blank is driven by two moving vehicles to move, the cooled corrugated pipe blank is partially moved into the rotary drum, burrs on the outer wall of the corrugated pipe blank are ironed and scraped off through a heating plate, and the high-modulus insulating flame-retardant pp double-wall corrugated pipe is obtained. The corrugated pipe blank is fast and convenient to cool, the using amount of cooling water can be saved, burrs on the outer wall of the corrugated pipe blank can be fast ironed and scraped through the heating plate, harm of the burrs to workers is avoided, and the production efficiency is high.

Description

technical field [0001] The invention relates to a corrugated pipe, in particular to a high-modulus insulating flame-retardant PP double-wall corrugated pipe and a preparation method thereof. Background technique [0002] Double-wall corrugated pipe is a new type of pipe with a ring-shaped outer wall and a smooth inner wall. It was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has developed from a single variety to a complete product series. At present, the production process and application technology are very mature. Due to its excellent performance and relatively economical cost, it has been greatly promoted and applied in developed countries such as Europe and the United States; the cooling speed of traditional double-wall corrugated pipes is slow in production, the amount of cooling water is large, and the burrs on the surface of double-wall corrugated pipes are not It is easy to remove, and it ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L53/00C08L23/08C08L67/02C08L23/06C08K13/06C08K3/34C08K7/18C08K3/22C08J3/22B29C48/13B29C48/25B29C48/885
CPCC08L23/12C08J3/226B29C48/13B29C48/885B29C48/25C08L2203/18C08L2201/02C08L2207/068C08J2323/12C08J2423/12C08J2467/02C08J2423/06C08K2003/2255C08K2003/2251
Inventor 刘俊峰田祥军潘学东王华
Owner ANHUI JIELANTE NEW MATERIAL CO LTD
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