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Method for preparing special HDPE (High-Density Polyethylene) reworked material for pipelines

A technology of recycled materials and pipes, applied in the field of preparation of HDPE recycled materials for pipes, can solve problems such as single raw material, achieve the effect of improving quality, solving single raw material and ensuring stability

Active Publication Date: 2013-04-10
安徽极速生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned problems of the prior art, and provide a preparation method of HDPE regenerated material for pipelines, which can solve the problem of single raw material in the production process, and at the same time ensure the stability of the melt index, thereby improving the quality of the product

Method used

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  • Method for preparing special HDPE (High-Density Polyethylene) reworked material for pipelines

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Embodiment Construction

[0017] Such as figure 1 As shown, the preparation method of a kind of special HDPE regenerated material for pipelines described in the embodiment of the present invention, the dosage is parts by weight, and the screw extruder unit system is adopted, which includes a mixer, a screw extruder 1 and an auxiliary machine 2, and the screw extruder Extruder 1 comprises main feeder 3, secondary feeder 4 and extruding screw 6, and described auxiliary machine 2 comprises side feeder 5, it is characterized in that, this preparation method comprises the following steps:

[0018] a) Premixing different types of HDPE recycled materials with a mixer to obtain a premix, weighing 100 parts of the premix, and weighing 1.9 to 2.1 parts of vulcanizing agent at the same time;

[0019] b) Add the premixed material into the screw extruder 1 through the main feeding device 3, and add the vulcanizing agent into the screw extruder 1 through the secondary feeding device 4 at the same time. After fully m...

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Abstract

The invention relates to a method for preparing a special HDPE (High-Density Polyethylene) reworked material for pipelines. The dosage is weight proportion, and a screw extruder set system is adopted and comprises a blender, a screw extruder and an auxiliary machine. The screw extruder comprises a main feeding device, a secondary feeding device and an extrusion screw, and the auxiliary machine comprises a side feeding device. The preparation method is as follows: 1.9-2.1 parts of vulcanizing agent are added in 100 parts of premixed materials; after the premixed materials are heated to 190 DEG C to be completely plasticized, and 0.9-1.1 parts of nucleating agent are added, so that different kinds of HDPE reclaimed materials can be used as the production raw materials of the special HDPE reworked material for the pipelines, therefore, the problem of single raw materials in the production process is solved, meanwhile, the stability of a melt index is ensured, and further the quality of products is enhanced.

Description

technical field [0001] The invention relates to the preparation technology of HDPE recycled materials, in particular to a preparation method of HDPE recycled materials specially used for pipelines. Background technique [0002] HDPE recycled material is also called high-density polyethylene recycled material. It is made of recycled HDPE materials, HDPE products and other waste HDPE recycled materials after proper treatment. It is more and more used in the market due to its good performance and low price. bigger. As one of the special materials for pipeline production, HDPE recycled materials for pipelines have also been widely used in the production of pipeline products such as HDPE double-wall corrugated pipes. [0003] At present, in the preparation technology of HDPE recycled materials for pipelines, the physical mixing method is usually used to produce HDPE recycled materials for pipelines, that is, the raw materials are small hollow plastic pipes with a melt index of 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/06B29K23/00
Inventor 张志合
Owner 安徽极速生物科技股份有限公司