Recycled modified material of waste drip-irrigation tape and preparation method thereof

A drip irrigation belt and modification technology, applied in the field of waste drip irrigation belt recycling modified material and its preparation, can solve the problems of environmental pollution, poor compatibility, performance discount of drip irrigation belt, etc., and achieve lower production cost, good tensile strength and fracture The effect of elongation

Inactive Publication Date: 2017-02-22
大禹节水(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the raw materials used in the industrial preparation of the drip irrigation belt are all new chemical raw materials, and the price is high; and various waste drip irrigation belts are degraded in the natural environment, which is easy to pollute the environment, so it is necessary to recycle the waste and old drip irrigation belts. Utilization, on the one hand, reduces environmental pollution, and on the other hand, reduces the production cost of drip irrigation belts
[0004] When recycled materials are used again as raw materials to produce drip irrigation tapes, because the recycled materials contain a large amount of impurities, the compatibility of polyethylene with other processing aids is very poor, resulting in a greatly reduced performance of the produced drip irrigation tapes, especially anti-oxidation Sex and tensile strength are difficult to meet market demand

Method used

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  • Recycled modified material of waste drip-irrigation tape and preparation method thereof
  • Recycled modified material of waste drip-irrigation tape and preparation method thereof
  • Recycled modified material of waste drip-irrigation tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The formula for recycling and modifying the drip irrigation belt consists of the following raw materials in parts by mass:

[0021]

[0022] Put the above-mentioned raw materials in a blender and stir them evenly according to parts by weight to obtain a blend; introduce the blend into an extruder, granulate at 190-210°C, and then filter through a 100-mesh filter to obtain a recycled modified material.

Embodiment 2

[0024] The formula for recycling and modifying the drip irrigation belt consists of the following raw materials in parts by mass:

[0025]

[0026] Put the above-mentioned raw materials in a blender and stir them evenly according to parts by weight to obtain a blend; introduce the blend into an extruder, granulate at 190-210°C, and then filter through a 100-mesh filter to obtain a recycled modified material.

[0027] Among them, after maleic anhydride grafted PE and pentaerythritol ester are compounded, the compatibility between recycled materials and additives can be further improved. Among them, pentaerythritol ester is also a multi-component hindered phenol antioxidant, which has a good effect of preventing discoloration caused by light and heat, and can increase the aging resistance of recycled materials.

Embodiment 3

[0029]

[0030] Put the above-mentioned raw materials in a blender and stir them evenly according to parts by weight to obtain a blend; introduce the blend into an extruder, granulate at 190-210°C, and then filter through a 100-mesh filter to obtain a recycled modified material.

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PUM

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Abstract

The invention discloses a recycled modified material of a waste drip-irrigation tape and a preparation method thereof. The recycled modified material comprises the following components: a drip-irrigation tape crushed material, high-density polyethylene 2480, a compatibilizer, an elastomer, polyethylene wax, glycerol and light calcium carbonate. The recycled modified material of the waste drip-irrigation tape is prepared from the following raw material components in parts by mass: 50 to 100 parts of the drip-irrigation tape crushed material, 10 to 30 parts of the high-density polyethylene 2480, 0.5 to 2 parts of the compatibilizer, 0.2 to 1 part of the elastomer, 0.3 to 1 part of the polyethylene wax, 2 to 3 parts of glycerol and 4 to 6 parts of the light calcium carbonate. The recycled modified material of the drip-irrigation tape is prepared through the following steps: recycling the waste drip-irrigation tape, and carrying out cutting, cleaning, air drying, crushing, melting, plasticizing and extrusion. The recycled modified material has the following beneficial effects: the waste drip-irrigation tape is recycled, so waste is prevented, and pollution of the drip-irrigation tape to the environment is reduced; in addition, the production cost can be reduced in the process of recycling; and the produced drip-irrigation tape by the invention has good tensile strength and elongation at break.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a modified material recycled from waste drip irrigation belts and a preparation method thereof. Background technique [0002] As the most important general-purpose plastic, polyethylene has an extremely wide range of uses, and its domestic consumption is huge, and it also shows a trend of increasing year by year. Moreover, due to the development of polymer material modification technology, various modified polyethylenes have entered the market, making many products not a single variety, but a blend of various materials. Furthermore, various additives, such as antioxidants, colorants, fillers, etc., are added to various polyethylene products, and it is impossible for them to be separated, and the compatibility between them is very poor. The performance will be affected to a certain extent, so the raw materials should be modified during the recycling process. [0003] The polyeth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/28C08L23/08C08L51/06C08L75/04C08K5/053C08K3/26B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08L23/06C08L2201/08C08L2205/025C08L2205/035C08L2207/062C08L2207/066C08L2207/20C08L23/286C08L23/0853C08K5/053C08K2003/265C08L51/06C08L75/04C08L23/0815Y02P70/10
Inventor 王栋孟庆阳
Owner 大禹节水(天津)有限公司
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