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Modified recycled polyethylene plastic for plastic pipeline and preparation method of plastic

A technology for recycled polyethylene and plastic pipes, applied in the direction of plastic recycling, recycling technology, etc., can solve the problems of poor rigidity and unstable performance of modified recycled PE plastics, and achieve stable performance, lower production costs, and high impact strength. Effect

Active Publication Date: 2021-02-23
JIANGXI GREEN ECO MFG RESOURCE CYCLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, it is necessary to provide a modified recycled polyethylene plastic used for plastic pipes and a preparation method thereof, in order to solve the technical problems of poor rigidity and unstable performance of existing modified recycled PE plastics in the prior art

Method used

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Examples

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preparation example Construction

[0029] A second aspect of the present invention provides a method for preparing modified recycled polyethylene plastics for plastic pipes, comprising the following steps:

[0030] S1 Mix the modified reinforcing and toughening additives uniformly first to form a pre-mixed liquid additive;

[0031] S2 After mixing the plastic base material blending formula, processing aids and pre-mixed liquid additives evenly, the modified recycled polyethylene for plastic pipes is obtained by granulating through a single-screw-conical twin-screw second-stage extrusion granulator plastic.

[0032] The preparation method of the modified recycled polyethylene plastic for plastic pipes provided by the second aspect of the present invention is used to obtain the modified recycled polyethylene plastic used for plastic pipes provided by the first aspect of the present invention.

[0033] The present invention premixes reactive components such as silane compounds, introduces a dehydration catalyst, ...

Embodiment 1

[0043] This embodiment provides a modified recycled polyethylene plastic for plastic pipes, including plastic substrates, modified reinforcement and toughening additives and processing aids; wherein, by weight,

[0044] Plastic substrates include: 45 parts of recycled oil pot HDPE crushed materials, 20 parts of recycled big blue drum HDPE crushed materials, 15 parts of recycled LDPE film granulation materials, and 10 parts of recycled paint barrel (ethylene propylene copolymer) crushed materials;

[0045] Modified strengthening and toughening additives include: 0.3 parts of methyltrimethoxysilane, 0.02 parts of DCPO, MnO 2 0.01 part, CuO 0.01 part, antioxidant 168 0.015 part, antioxidant 1010 0.015 part;

[0046] Processing aids include: 8 parts of talcum powder, 0.03 parts of EBS, 0.1 part of stearic acid, and 0.1 part of zinc stearate.

[0047] This embodiment also provides a method for preparing modified recycled polyethylene plastics for plastic pipes, comprising the fol...

Embodiment 2

[0054] This embodiment provides a modified recycled polyethylene plastic for plastic pipes, including plastic substrates, modified reinforcement and toughening additives and processing aids; wherein, by weight,

[0055] Plastic substrates include: 40 parts of recycled variegated daily necessities HDPE hollow container crushing material, 20 parts of recycled blue HDPE hollow barrel crushing material, 10 parts of recycled LDPE mixed film granulation material, 5 parts of recycled LLDPE mixed film granulation material 10 parts of colored EVA sheet crushing material, 3 parts of recycled EPDM crushing material;

[0056] Modified strengthening and toughening additives include: 0.2 parts of triacetoxysilane, 0.2 parts of propyltriacetoxysilane, 0.2 parts of maleic anhydride, 0.02 parts of BPO, 0.02 parts of DCPO, 0.02 parts of CuO, Fe 2 o 3 0.02 parts, antioxidant 168 0.02 parts, antioxidant 1010 0.01 parts;

[0057] Processing aids include: 11 parts of mica powder, 4 parts of sili...

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PUM

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Abstract

The invention discloses modified recycled polyethylene plastic for a plastic pipeline and a preparation method of the modified recycled polyethylene plastic. The modified recycled polyethylene plasticcomprises a plastic base material, a modified reinforcing and toughening additive and a processing aid, wherein the plastic base material comprises HDPE waste plastic, LDPE waste plastic, LLDPE wasteplastic and ethylene copolymer waste plastic; the modified reinforcing and toughening additive comprises a silane compound, maleic anhydride, a grafting initiator, a dehydration catalyst and an antioxidant; and the processing aid comprises a rigid filler, an internal lubricant and an external lubricant. The modified recycled PE plastic is prepared from the plastic base material, the modified reinforcing and toughening additive and the processing aid, and the obtained modified recycled PE plastic is high in impact strength and stable in performance.

Description

technical field [0001] The invention relates to the technical field of resource regeneration, in particular to a modified recycled polyethylene plastic used for plastic pipes and a preparation method thereof. Background technique [0002] With the development of my country's plastic industry, a large amount of plastic waste is produced. The amount of waste plastics produced in my country every year is about 14 million tons. They cannot be decomposed naturally and do not rot, which has become an eye-catching social problem. The recycling and utilization of waste plastics can turn industrial waste into extremely valuable industrial production raw materials and realize the recycling of resources, which has potential significance that cannot be ignored. At present, all countries in the world pay attention to and support the recycling and recycling methods of waste plastics. Among the solid wastes in industrialized countries, waste plastics account for about 10% to 20%. Polyole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/16C08K13/02C08K5/5419C08K5/14C08K3/22C08L23/08C08K5/09B29B9/06
CPCB29B9/00Y02W30/62C08K5/5415C08L23/06C08L23/08C08K3/013B29B7/00C08K13/02C08L2207/066C08L2205/03C08L2207/20C08L2203/18C08L2205/025C08L2207/062B29B9/06C08K2003/2248C08K2003/2262C08K2003/2272C08K2003/2296C08L2205/035C08K5/5419C08K5/14C08K3/22C08L23/0815C08L23/0853C08L23/16C08K5/09B29B7/885B29B7/426B29B7/603B29B9/12B29B7/66B29B7/94B29B7/007B29B7/484B29B7/826C08L2205/02C08L23/04C08K3/20C08K5/15C08K5/005
Inventor 许开华吕怀兴秦玉飞牛远航陈龙
Owner JIANGXI GREEN ECO MFG RESOURCE CYCLE
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