Modified regenerated polyethylene corrugated pipe material and preparation method thereof

A technology for recycled polyethylene and corrugated pipes, which is applied in the field of modified recycled polyethylene corrugated pipe materials and its preparation, can solve the problems of high pipe breakage rate, water leakage, waste of resources in plastic packaging barrels, etc., and achieves excellent flame retardant performance and mechanical properties. , Solve the problem of environmental pollution and realize the effect of resource utilization

Inactive Publication Date: 2020-10-13
上海睿聚环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in China, the rigidity of the material is mainly increased by adding modified masterbatches such as talcum powder or calcium carbonate masterbatch, and the production cost is reduced. Brittle cracks occur under external impact, resulting in high damage rate of pipes, unstable use, water leakage and other problems
[0004] Aiming at the above-mentioned technical problems, the present invention provides a corrugated pipe material made of recycled polyethylene materials for plastic packaging barrels, which not only solves the problem of resource waste of plastic packaging barrels, realizes resource utilization, reduces environmental pollution, but also provides a Bellows material with excellent mechanical properties

Method used

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  • Modified regenerated polyethylene corrugated pipe material and preparation method thereof
  • Modified regenerated polyethylene corrugated pipe material and preparation method thereof
  • Modified regenerated polyethylene corrugated pipe material and preparation method thereof

Examples

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preparation example Construction

[0037] In the present invention, the preparation method of the regenerated polyethylene material comprises the following steps:

[0038] (1) crushing: crushing the plastic packaging barrel to obtain crushed material;

[0039] (2) Impurity removal: Soak the crushed material in hot alkaline water, then polish and clean it to remove impurities on the surface of the crushed material; then wash with water and dry;

[0040] (3) Granulation: the crushed material obtained in step (2) is melt-extruded and granulated to obtain final product.

[0041] In a preferred embodiment, in the step (1), the average particle size of the crushed material is 10-50 mm.

[0042] In a preferred embodiment, the hot alkaline water in the step (2) is an aqueous solution of sodium hydroxide / potassium hydroxide at a temperature of 60-100°C.

[0043] In a more preferred embodiment, the concentration of the sodium hydroxide / potassium hydroxide is 0.1-10wt%.

[0044]In a preferred embodiment, in the step (2...

Embodiment 1

[0094] Example 1 provides a modified regenerated polyethylene corrugated pipe material, the raw materials for the preparation of the corrugated pipe material include the following components: 80 parts of recycled polyethylene material, 16 parts of filler, 4 parts of heat stabilizer, flame retardant 4 parts, 2 parts of other additives.

[0095] The preparation method of described recycled polyethylene material comprises the following steps:

[0096] (1) Crushing: Crushing hazardous waste plastics to obtain crushed materials with an average particle size of 20±10mm;

[0097] (2) Impurity removal: Soak the crushed material in an aqueous solution of sodium hydroxide with a concentration of 1 wt% at 80°C, then polish and clean it to remove impurities on the surface of the crushed material; then wash it with water, and dry it at 100°C for 12 hours;

[0098] (3) Granulation: the crushed material obtained in step (2) is melt-extruded and granulated to obtain final product.

[0099] ...

Embodiment 2

[0110] Example 2 provides a modified regenerated polyethylene corrugated pipe material, the raw materials for the preparation of the corrugated pipe material include the following components: 60 parts of recycled polyethylene material, 5 parts of filler, 1 part of heat stabilizer, flame retardant 1 part, 1 part of other additives.

[0111] The preparation method of described recycled polyethylene material comprises the following steps:

[0112] (1) Crushing: Crushing hazardous waste plastics to obtain crushed materials with an average particle size of 10±10mm;

[0113] (2) Impurity removal: Soak the crushed material in a 10wt% aqueous solution of sodium hydroxide at 60°C, then polish and clean it to remove impurities on the surface of the crushed material; then wash with water, and bake at 60°C for 12 hours;

[0114] (3) Granulation: the crushed material obtained in step (2) is melt-extruded and granulated to obtain final product.

[0115] The preparation method of described...

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Abstract

The invention relates to the field of waste plastic regeneration technologies and pipe preparation methods, in particular to a modified regenerated polyethylene corrugated pipe material and a preparation method thereof. The modified regenerated polyethylene corrugated pipe material is at least prepared from the following preparation raw materials: 60 to 90 parts of a regenerated polyethylene material, 5 to 20 parts of a filler, 1 to 5 parts of a heat stabilizer, 1 to 5 parts of a flame retardant and 1 to 3 parts of other auxiliary agents. The corrugated pipe material prepared from a recycled polyethylene material of a plastic packaging barrel overcomes the problem of resource waste of the plastic packaging barrel, realizes resource utilization and decreases environmental pollution; and therecycled polyethylene material is used as a base material, and is compounded with a certain amount of the filler, the flame retardant, the heat stabilizer and other auxiliary agents to prepare the corrugated pipe material with excellent flame retardancy and mechanical properties, so the production cost of the corrugated pipe is greatly lowered.

Description

technical field [0001] The invention relates to the field of waste plastic recycling technology and pipe preparation methods, in particular to a modified regenerated polyethylene corrugated pipe material and a preparation method thereof. Background technique [0002] With the rapid development of my country's plastics industry, waste plastics after processing and production or use are increasing day by day. According to statistics from the China Plastics Processing Industry Association, the current annual production of waste plastics in China is about 10 million tons, plus the annual import of nearly 5 million tons, the overall possession is about 15 million tons per year. A large number of waste plastics that cannot be naturally degraded not only cause serious environmental pollution, but are also not conducive to the development of the national economy. At the same time, plastics are prepared by synthesis of natural resources such as oil, natural gas, and coal. In the cas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/06C08K9/02C08K9/04C08K7/14C08K3/04C08K3/02C08K3/26
CPCC08K3/02C08K3/26C08K7/14C08K9/02C08K9/04C08K13/06C08K2003/026C08K2003/265C08L2201/02C08L2203/18C08L2207/20C08K3/042C08L23/06
Inventor 朱宽吴泽兵熊维
Owner 上海睿聚环保科技有限公司
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