PE pipe and preparation method thereof

A pipe and pipe layer technology, applied in the field of PE pipe and its preparation, can solve the problems of unsatisfactory mechanical strength and performance, and achieve the effects of improving stiffness, improving product quality, and good flame retardancy

Active Publication Date: 2020-06-19
ZHEJIANG LONGCAI PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the deficiencies in the related art is that polyethylene pipes are directly extruded from a...

Method used

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  • PE pipe and preparation method thereof
  • PE pipe and preparation method thereof
  • PE pipe and preparation method thereof

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preparation example Construction

[0062] In some implementations of the embodiments of the present invention, the preparation method of the PE pipe includes the following steps:

[0063] Step S100. Prepare the first raw material for preparing the antibacterial inner tube layer 10, the second raw material for preparing the fiber reinforced layer 12 and the third raw material for preparing the fire-resistant outer tube layer 14;

[0064] Step S200. Sending the first raw material, the second raw material and the third raw material obtained through the step S100 into extrusion equipment for melt kneading and extrusion;

[0065] Step S300. Guide the first raw material, the second raw material and the third raw material in the molten state obtained through the step S200 into a multi-layer co-extrusion die through a split feeding device, and the Co-compression extrusion in a multi-layer co-extrusion die;

[0066] Step S400. The compressed extruded material obtained through the step S300 is first subjected to primary...

Embodiment 1 to Embodiment 6

[0105] This embodiment provides some PE pipes. The raw material composition and process parameters of the PE pipe in this embodiment are shown in Table 1. The PE pipe material of the present embodiment is prepared through the following steps:

[0106] Step S110. Polyethylene, polyphenylene sulfone resin, dimethyl tin dichloride, didodecyl thiodipropionate, N-aminoethyl-γ-aminopropyltriethoxysilane and The antibacterial agent is mixed evenly to obtain the first raw material;

[0107] Step S120. uniformly mixing polyethylene, acrylonitrile-butadiene-styrene copolymer, glass fiber, zirconia and sodium nonylphenol polyoxyethylene ether sulfate to obtain a second raw material;

[0108] Step S130. Mix polyethylene, ethylene-vinyl acetate copolymer, phenoxyphosphoryl dichloride, flame retardant and diethylaminomethyltriethoxysilane evenly to obtain a third raw material.

[0109] Step S210. Weighing the first raw material, the second raw material and the third raw material respecti...

Embodiment 7

[0120] This embodiment provides a preparation method for the antibacterial agent used to prepare the PE pipes of Embodiment 1 to Embodiment 6, specifically including:

[0121] Step S1102. According to the mass ratio of strontium oxide: zinc oxide: sodium nonylphenol polyoxyethylene ether sulfate: water = 2:5:0.2:100, add strontium oxide, zinc oxide and nonylphenol polyoxyethylene ether sulfuric acid to the water Sodium, and ultrasonically dispersed for 20 minutes at a temperature of 60 degrees Celsius to obtain the first slurry;

[0122] Step S1104. Add phosphoric acid solution dropwise to the first slurry obtained in step S1102 to adjust the pH value to 3 to 4, then add phosphoric acid solution and potassium metaaluminate solution dropwise to the first slurry at the same time Until the pH value is 5 to 6, stir for 20 minutes, age for 1 hour, and then dropwise add acetic acid solution and potassium metaaluminate solution to the first slurry until the pH value is 8 to 9, stir f...

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Abstract

The invention provides a PE pipe and a preparation method thereof. The PE pipe comprises at least two pipe layers. Any two adjacent pipe layers are connected with each other in a forming mode of co-extrusion in a multi-layer co-extrusion mold; and any at least one pipe layer comprises an antibacterial material. The PE pipe has excellent performance and is particularly suitable for manufacturing ofdomestic water supply pipelines.

Description

technical field [0001] The invention relates to the field of manufacturing plastic products, in particular to a PE pipe and a preparation method thereof. Background technique [0002] Polyethylene (PE for short) is a highly crystalline, non-polar thermoplastic resin. The appearance of the original polyethylene is milky white, and the thin section is translucent to a certain extent. [0003] Pipes made of polyethylene materials can be widely used in engineering water supply and drainage, energy heating systems, gas pipeline systems and many other fields. [0004] With the advancement of science and technology and the improvement of people's living standards, the performance of polyethylene pipes in this field has also put forward higher and higher demands. One of the deficiencies in the related art is that the polyethylene pipe is directly extruded from a single formula raw material, and its performance in terms of mechanical strength is not satisfactory. Contents of the ...

Claims

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Application Information

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IPC IPC(8): B32B1/08B32B27/08B32B27/06B32B27/18B32B27/20B32B27/28B32B27/30C08L23/06C08L81/06C08L55/02C08L23/08C08K5/372C08K5/544C08K7/14C08K3/22B29C48/09B29C48/21B29L23/00
CPCB29C48/09B29C48/21B29L2023/22B32B1/08B32B27/08B32B27/18B32B27/20B32B27/286B32B27/302B32B27/306B32B2262/101B32B2307/3065B32B2307/558B32B2307/7145B32B2597/00C08K2003/2244C08L23/06C08L2203/18C08L81/06C08K5/372C08K5/544C08L55/02C08K7/14C08K3/22C08L23/0853
Inventor 姜渭龙吴新华徐爱芳
Owner ZHEJIANG LONGCAI PLASTIC IND
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