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Preparation and production process of nano-modified high-density polyethylene alloy pipe

A high-density polyethylene, nano-modified technology, applied in tubular articles, other household appliances, applications, etc., can solve the problems of high production cost, leakage of transported materials, easy embrittlement, etc., to reduce production costs and product quality, The effect of improving toughness and structural strength, and high foaming density

Pending Publication Date: 2021-02-26
贵州黔峰实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing polyethylene alloy pipes have poor impact resistance after long-term use, and are prone to embrittlement especially at low temperatures. After completion, the consumables are high, the production cost is high, and the existing alloy pipes are of high quality and difficult to transport

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The embodiment of the present invention provides a nano-modified high-density polyethylene alloy pipe preparation and its production process, including the following steps,

[0038] Step 1: Preparation of the structural layer, take 50 parts of high-density polyethylene, 30 parts of polyphenylene sulfone resin, 20 parts of auxiliary agent and 3-10 parts of heat stabilizer, dry at a low temperature of 40-60 ° C, and add it to the mixer Stir to obtain mixture a;

[0039] Step 2: doping the mixture with carbon nanotubes and putting them into a twin-screw extruder for blending and granulation to obtain a structural layer substrate;

[0040]Step 3: Put the base material of the structural layer into the polyethylene pipe screw extruder, extrude the polyethylene and put it into the mold to extrude the structural layer;

[0041] Step 4: Take out the high-temperature structural layer, and spray water on the surface of the structural layer to cool down;

[0042] Step 5: Filling ...

Embodiment 2

[0052] The embodiment of the present invention provides a nano-modified high-density polyethylene alloy pipe preparation and its production process, including the following steps,

[0053] Step 1: Preparation of the structural layer, take 40 parts of high-density polyethylene, 30 parts of polyphenylene sulfone resin, 20 parts of auxiliary agent and 3-10 parts of heat stabilizer, dry at a low temperature of 40-60 °C, and add it to the mixer Stir to obtain mixture a;

[0054] Step 2: doping the mixture with carbon nanotubes and putting them into a twin-screw extruder for blending and granulation to obtain a structural layer substrate;

[0055] Step 3: Put the base material of the structural layer into the polyethylene pipe screw extruder, extrude the polyethylene and put it into the mold to extrude the structural layer;

[0056] Step 4: Take out the high-temperature structural layer, and spray water on the surface of the structural layer to cool down;

[0057] Step 5: Filling ...

Embodiment 3

[0067] The embodiment of the present invention provides a nano-modified high-density polyethylene alloy pipe preparation and its production process, including the following steps,

[0068] Step 1: Preparation of the structural layer, take 60 parts of high-density polyethylene, 30 parts of polyphenylene sulfone resin, 20 parts of auxiliary agent and 3-10 parts of heat stabilizer, dry at a low temperature of 40-60 ° C, and add it to the mixer Stir to obtain mixture a;

[0069] Step 2: doping the mixture with carbon nanotubes and putting them into a twin-screw extruder for blending and granulation to obtain a structural layer substrate;

[0070] Step 3: Put the base material of the structural layer into the polyethylene pipe screw extruder, extrude the polyethylene and put it into the mold to extrude the structural layer;

[0071] Step 4: Take out the high-temperature structural layer, and spray water on the surface of the structural layer to cool down;

[0072] Step 5: Filling...

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Abstract

The invention provides a preparation and production process of a nano-modified high-density polyethylene alloy pipe. The preparation and production process comprises the following steps of preparing astructural layer to obtain a structural layer base material; taking out the high-temperature structural layer, and atomizing, spraying and cooling the surface of the structural layer; preparing a filling layer, specifically, taking 30-50 parts of high-density polyethylene, 20-30 parts of polylactic acid and 5-10 parts of glycidyl methacrylate and drying for 10-15 min at the temperature of 60-80 DEG C, after surface moisture is dried, heating the mixture is to be molten and then putting into a stirrer to be stirred and mixed at the high temperature, and preparing a mixture b; filling gaps in the structural layer with the mixture b, placing the filled structural layer in a sealed container, filling enough carbon dioxide, and conducting filling to form foam; and after foaming is completed, rapidly taking out the structural layer, conducting low-temperature air drying and shaping, and preparing the nano-modified high-density polyethylene alloy pipe. According to the preparation and production process of the nano-modified high-density polyethylene alloy pipe, the production efficiency of a product is improved, the structural performance of the alloy pipe is optimized, and the dead weight of the product is reduced.

Description

technical field [0001] The invention relates to the field of alloy composite pipe products, in particular to the preparation and production process of a nano-modified high-density polyethylene alloy pipe. Background technique [0002] Polymer blends, commonly known as polymer alloys, are a class of materials with uniform appearance and multi-component polymer systems containing two or more different structures. By blending, the physical and mechanical properties and processing properties of polymer materials can be improved, costs can be reduced, and the scope of use can be expanded. Therefore, it is one of the important ways to realize polymer modification and produce multi-performance new materials. [0003] According to the production method, polymer blends are divided into mechanical blends, chemical blends, latex blends and solution blends. mechanical blends. Generally, it is a blend obtained by mixing the melts of different polymers by rollers, extruders or intensiv...

Claims

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Application Information

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IPC IPC(8): B29D23/00C08L23/06C08L81/06C08K3/04C08K13/02C08L67/04C08J9/12B29K23/00
CPCB29D23/001C08L23/06C08J9/122C08J9/0061B29K2023/06C08L2203/18C08L2207/062C08J2323/06C08J2467/04C08J2367/04C08J2203/06C08L81/06C08K3/041C08K13/02Y02A20/20
Inventor 夏浩谢毅杨江
Owner 贵州黔峰实业有限公司
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