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Modified recycled special material for pe straight wall pipe

A technology for recycled materials and pipes, which is applied in the field of PE straight-walled pipes and its special recycled materials and its preparation. It can solve the problems of uncontrollable performance of recycled materials, few types of PE, and different performances of HDPE, so as to improve physical and chemical properties, status and performance indicators. The effect of improvement and low cost

Inactive Publication Date: 2020-11-17
连云港益众再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention mixes different types of HDPE recycled materials, and there are few types of recycled PE, and different types of HDPE have different properties, so the performance of the recycled materials obtained after mixing cannot be controlled.

Method used

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  • Modified recycled special material for pe straight wall pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0030] In Example 2, the HDPE film grade crushed material used is HDPE black film crushed material, and the MRF is 1.5; the HDPE blow molding grade low-melt finger crushed material used is HDPE big blue barrel crushed material, and the MRF is 0.5; the HDPE pipe used The crushed material of high-grade low-grade melting finger is HDPE clarinet crushed material, and the MRF is 0.8; the crushed material of HDPE blow-molding medium-melt finger used is PE washing and chemical product crushed material, and the MRF is 2.2; the LDPE high-pressure particles used are recycled LDPE film grade Particles, with an MRF of 6, were purchased from Jinhuan, Thailand; the HDPE pipe-grade ultra-low melt index crushed material used was HDPE natural gas pipeline crushed material, with an MRF of 0.06; the black masterbatch used was purchased from Jiangsu Yazhong Environmental Protection Technology Co., Ltd., and the black masterbatch Grade 8068A.

Embodiment 3

[0031] In Example 3 and Comparative Examples 1-3, the HDPE film-grade crushed material used was HDPE black film crushed material, and the MRF was 1.2; the HDPE blow molding grade low-melt finger crushed material used was HDPE large blue barrel crushed material, and the MRF was 0.4 ;The HDPE pipe grade low-melt finger crushed material used is HDPE clarinet pipe crushed material, and the MRF is 0.5; the HDPE blow molding grade medium-melt finger crushed material used is PE washing and chemical product crushed material, and the MRF is 1.9; the LDPE high-pressure granules used It is LDPE film-grade recycled particles with an MRF of 5, purchased from Jinhuan, Thailand; the HDPE pipe-grade ultra-low melting index crushed material used is HDPE natural gas pipeline crushed material, with an MRF of 0.08; the black masterbatch used is purchased from Jiangsu Yazhong Environmental Protection Technology Ltd, Black Mother Grade No. 8068A.

Embodiment 1

[0033] A modified PE regenerated material for PE straight-wall pipes, the components of which are shown in Table 1;

[0034] The preparation method of this recycled material is:

[0035] 1) Prepare materials according to the above-mentioned components and parts by weight;

[0036] 2) Put the prepared raw materials into the mixer for full mixing;

[0037] 3) After the granulator is preheated, use the feeder to put the stirred raw materials into the granulator for heating and melting, and the melting temperature is 200°C;

[0038] 4) The molten material is extruded by a screw, and cut into granules by a hot cutting machine.

[0039] Table 1

[0040]

[0041] The components of the modified PE recycled materials for PE straight-wall pipes provided in Examples 2-4 and Comparative Examples 1-3 are shown in Table 1 respectively; the preparation method of the recycled materials is the same as in Example 1. The performance indexes of the recycled materials prepared in each embod...

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Abstract

The invention relates to a PE recycled material, in particular to a special recycled material for a PE straight wall pipe material and a preparation method thereof. The modified PE recycled material for the PE straight wall pipe material, provided by the invention, comprises the following components in part by weight: 5-10 parts of an HDPE thin film-grade pulverized material, 15-40 parts of an HDPE blow-molding-grade low-melting index pulverized material, 5-15 parts of an HDPE pipe material-grade low-melting index pulverized material, 28-65 parts of an HDPE blow-molding-grade intermediate-melting index pulverized material, 2-10 parts of an LDPE high-pressure particles, 2-10 parts of an HDPE pipe material-grade ultra-low-melting index pulverized material and 1-2 parts of a composite aid, wherein the composite aid comprises dioctyl phthalate (DOP), zinc stearate, stearic acid, di-tert-butyl peroxide and black color masterbatch. The modified PE recycled material provided by the inventionis used for preparing a PE straight wall pipe, performance indexes of the modified PE recycled material conform to PE straight wall pipe material standards, the performance is stable, and the preparation method of the modified PE recycled material is simple and strong in practicability.

Description

technical field [0001] The invention relates to PE recycled materials, in particular to a special recycled material for PE straight-wall pipes and a preparation method thereof. Background technique [0002] Plastic, steel, wood, and cement are the four basic materials in the world today, occupying an extremely important position. Compared with developed countries such as the United States and Japan, my country's plastics industry has a relatively short development history, but its development speed is very fast, and it has become one of the major plastics industrial countries. On the other hand, my country is a big consumer of plastics, and it is also a country poor in plastic raw materials. With the increasing application of plastic products, the disposal of plastic waste has become a very difficult problem, and the white pollution it produces has become a global public hazard. The two major factors of resource poverty and environmental pollution have seriously restricted...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K13/02C08K5/12C08K5/098C08K5/09C08K5/14
CPCC08L23/06C08L2203/18C08L2205/025C08L2205/035C08L2207/062C08L2207/066C08L2207/20C08K13/02C08K5/12C08K5/098C08K5/09C08K5/14
Inventor 武文
Owner 连云港益众再生资源有限公司
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