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Polyethylene modified material and preparation method thereof

A polyethylene modification and polyethylene technology, which is applied in the field of polyethylene modification materials and their preparation, can solve the problems of pump evacuation, industrial production and loss of hydropower stations, occupying a large amount of land, etc., and achieves improved toughness and surface smoothness. Gloss and three-dimensional effect, the effect of enhancing the degree of plasticization

Inactive Publication Date: 2020-01-14
成都盛腾科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Affect the development of industrial and agricultural production
The continuous accumulation of waste plastic products mixed in the soil will affect the absorption of nutrients and water by crops, resulting in crop yield reduction; plastic products floating in the Yangtze River will make it difficult to obtain water sources, causing pumps to evacuate and block, causing damage to industrial production and hydropower stations. huge loss
[0004] (2) Waste plastic products discarded on land or in water bodies are swallowed by animals as food, resulting in animal death
[0005] (3) Landfilling of waste plastics will not only occupy a large amount of land, but also the occupied land will not be restored for a long time, which will affect the sustainable use of land
[0006] (4) Household garbage mixed with plastic is not suitable for composting, and waste plastics must be sorted out from the garbage, which increases the cost of composting
However, the current method is relatively complicated in production process on the one hand, and on the other hand, different equipment is required for classification of high-density polyethylene, low-density polyethylene and linear low-density polyethylene.

Method used

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  • Polyethylene modified material and preparation method thereof
  • Polyethylene modified material and preparation method thereof
  • Polyethylene modified material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A polyethylene modified material comprises the following raw materials calculated according to the weight ratio:

[0033] 25 parts of cross-linked polyethylene, 35 parts of low-density polyethylene, 39 parts of a mixture of solid alkanes, 0. part of zinc stearate, 0.1 part of calcium stearate, 0.7 parts of vinylbisstearamide, tris[2.4-di 0.05 part of tert-butylphenyl] phosphite, 0.05 part of tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester;

[0034] Preparation:

[0035] (1) First add polyethylene resin and polyethylene waste plastics into a heatable closed reactor, which is equipped with a stirring device, and the polyethylene resin and polyethylene waste plastics are fully cracked in the reactor by stirring and heating , the temperature during cracking is 600° C., and the time is 0.3 hours; the stirring speed during cracking is 100 rpm.

[0036] (2) when cracking product is cooled to 100 DEG C in the step (1), add the mixture of soli...

Embodiment 2

[0039] A polyethylene modified material comprises the following raw materials calculated according to the weight ratio:

[0040] Polyethylene resin (one of chlorinated polyethylene, cross-linked polyethylene, ethylene-propylene copolymer, EVA, ethylene-butene copolymer, ethylene-other olefin copolymer, EAA, EMAA, EEA, EMA, EMMA, EMAH 59 parts, polyethylene waste plastics (including 10 parts of high-density polyethylene, 10 parts of low-density polyethylene, and 10 parts of medium-density polyethylene), 20 parts of a mixture of solid alkanes, zinc stearate 0.1 part, 0.1 part of calcium stearate, 0.3 part of vinyl bis stearamide, 0.25 part of tris[2.4-di-tert-butylphenyl] phosphite and tetrakis[β-(3,5-di-tert-butyl- 0.25 parts of 4-hydroxyphenyl) propionic acid] pentaerythritol ester;

[0041] Preparation method is with embodiment 1, and difference is specifically as follows:

[0042] (1) The temperature during cracking is 500° C., and the time is 4 hours; the stirring speed d...

Embodiment 3

[0046] A polyethylene modified material comprises the following raw materials calculated according to the weight ratio:

[0047] 2 parts of EAA, 15 parts of EMAA, 15 parts of EEA, 30 parts of ultra-high molecular weight polyethylene, 35.6 parts of a mixture of solid alkanes, 0.4 parts of zinc stearate, 0.5 parts of calcium stearate, 0.5 parts of vinyl bis stearamide, 0.5 parts of tris[2.4-di-tert-butylphenyl]phosphite, 0.5 parts of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate]pentaerythritol ester;

[0048] Preparation method is with embodiment 1, and difference is specifically as follows:

[0049] (1) The temperature during cracking is 500-600° C., and the time is 0.3-4 hours; the stirring speed during cracking is 80-100 rpm.

[0050] (2) Stir at 100-150°C for 0.5-2 hours, and then discharge; the stirring speed during mixing is 85-110 rpm.

[0051] (3) After being solidified, sieve through 40 mesh to 200 mesh to obtain the polyethylene modified material.

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Abstract

The invention belongs to the technical field of novel materials and in particular relates to a polyethylene modified material and a preparation method thereof. The polyethylene modified material comprises polyethylene resin, a waste polyethylene plastic, a mixture of solid alkane, zinc stearate, calcium stearate, vinyl bistearic amide and an antioxidant. The polyethylene resin and the waste polyethylene plastic are adopted as base materials, various aids are added, and the polyethylene modified material is prepared by using a preparation process researched in the invention. The modified material has excellent advantages of cold resistance, thermal resistance, chemical resistance, wearing resistance, lubrication performance, and the like, and so that has very good lubrication and compatibility functions in processing molding of a plastic or a color master batch. When the polyethylene modified material is used in processing molding of the plastic or the color master batch, the flowability of a material can be improved, the gloss, the lubrication performance and the processing performance of a product can be improved, the yield can be increased, and in addition, a higher filler concentration can be allowed.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a polyethylene modified material and a preparation method thereof. Background technique [0002] With the development of industry, polyethylene has excellent low temperature resistance (the lowest operating temperature can reach -100-70°C), good chemical stability, and can resist most acids and alkalis (not resistant to acids with oxidizing properties). It is insoluble in common solvents, has low water absorption, and is widely used because of its excellent electrical insulation. However, with the increase of usage, the amount of waste polyethylene also increases, which pollutes the living environment of people. Waste plastic products not only damage the city appearance and landscape, but also these waste plastics are scattered on the ground, or hang on the branches with the wind, or float on the water surface, polluting the environment, spreading diseases, and...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/28C08L23/08C08L91/06C08K5/00C08K5/098C08K5/20C08J11/12
CPCC08J11/12C08J2323/06C08J2323/08C08J2323/28C08J2423/06C08J2423/08C08J2423/28C08K2201/014C08L23/06C08L23/08C08L23/28C08L91/06C08L2201/08C08L2205/025C08L2205/03C08L2207/062C08L2207/066C08L2207/20C08K5/00C08K5/098C08K5/20Y02W30/62
Inventor 杨晓东雷玲
Owner 成都盛腾科技发展有限公司
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