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Special material for modified waste polyethylene pipes and preparation method thereof

A special material for pipelines and polyethylene resin technology, which is applied in the field of waste polyethylene toughened and modified recycled special materials and its preparation, to achieve the effects of cost reduction, elastic recovery, and surface activity improvement of rubber powder

Active Publication Date: 2017-08-01
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to provide a kind of waste polyethylene toughened, modified and recycled special material for pipelines, aiming at the technical deficiency of the existing special materials for toughening, modifying and regenerating waste polyethylene used in pipelines, which fully not only obtains A new type of special material with high quality, which reduces the production cost and reduces the pollution of solid waste to the environment

Method used

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  • Special material for modified waste polyethylene pipes and preparation method thereof
  • Special material for modified waste polyethylene pipes and preparation method thereof
  • Special material for modified waste polyethylene pipes and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1 Composite toughening modifier

[0058] The present invention prepares composite toughening modifier with each component of the following parts by weight:

[0059] 40 parts of waste tire rubber powder;

[0060] 40 parts of thermoplastic elastomer;

[0061] 20 parts of polyethylene resin;

[0062] Solubilizer 1.5 parts.

[0063] The waste tire rubber powder is obtained by pulverizing waste tires for vehicles, and can be obtained through regular commercial purchase. The particle size of the waste tire rubber powder is 100-200 mesh. The thermoplastic elastomer is POE, the polyethylene resin is low-density polyethylene (LLDPE) resin, and the solubilizer is K10H naphthenic oil (EPDM paraffin oil or white oil specially used for elastomers can also be used).

[0064] In the present invention, waste tire rubber powder, POE and LLDPE resin are combined into a composite toughening modifier in a scientific and reasonable ratio. It also reduces the cost of this ma...

Embodiment 2

[0071] The present invention prepares composite toughening modifier with each component of the following parts by weight:

[0072] 35 parts of waste tire rubber powder;

[0073] 35 parts of thermoplastic elastomer;

[0074] 30 parts of polyethylene resin;

[0075] Solubilizer 1.2 parts.

[0076] The waste tire rubber powder is obtained by pulverizing waste tires for vehicles, and can be obtained through regular commercial purchase. The particle size of the waste tire rubber powder is 100-200 mesh. The thermoplastic elastomer is POE, the polyethylene resin is low-density polyethylene (LLDPE) resin, and the solubilizer is EPDM paraffin oil (K10H naphthenic oil or white oil specially used for elastomers can also be used).

[0077]In the present invention, waste tire rubber powder, POE and LLDPE resin are combined into a composite toughening modifier in a scientific and reasonable ratio. It also reduces the cost of this material system and has good cost performance; on the ot...

Embodiment 3

[0084] The present invention prepares the composite toughening modifier by mixing and melt-extruding each component of the following parts by weight:

[0085] 25 parts of waste tire rubber powder;

[0086] 35 parts of thermoplastic elastomer;

[0087] 40 parts of polyethylene resin;

[0088] Solubilizer 1 part.

[0089] The waste tire rubber powder is obtained by pulverizing waste tires for vehicles, and can be obtained through regular commercial purchase. The particle size of the waste tire rubber powder is 100-200 mesh. The thermoplastic elastomer is POE, the polyethylene resin is low-density polyethylene (LLDPE) resin, and the solubilizer is white oil for elastomers (EPDM paraffin oil or K10H naphthenic oil can also be used).

[0090] In the present invention, waste tire rubber powder, POE and LLDPE resin are combined into a composite toughening modifier in a scientific and reasonable ratio. It also reduces the cost of this material system and has good cost performance...

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Abstract

The invention discloses a modified waste polyethylene special material for a pipeline and a preparation method of the modified waste polyethylene special material. The special material comprises the components in parts by weight: 100 parts of waste recovered polyethylene, 3-30 parts of a compound toughening modifier, 3-5 parts of inorganic filler, 0.02-0.2 part of a crosslinking agent, 0.05-0.1 part of an antioxidant, 1-7 parts of black mater batch and 0.1-0.5 part of a defoamer, wherein the compound toughening modifier is prepared from waste tyre rubber powder, POE and LLDPE resin in a scientific and reasonable proportion. By using the optimized compound toughening modifier, the crosslinking degree of related components in a composite material system is improved, a tensile strength value of the composite material system is supplemented, and the gel content and flowability of the modified material system are controlled, so that the purpose of optimizing the mechanical performances of the composite material system is achieved. The method disclosed by the invention is simple to operate, strong in adaptability and liable to industrial production; not only is the production cost lowered, but also the pollution caused by solid wastes on the environment is reduced; the special material has remarkable economical and social benefits.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a special material for toughening, modifying and regenerating waste polyethylene for pipelines and a preparation method thereof. Background technique [0002] With the wide application of high-tech in the plastics processing industry, the plastics industry has developed by leaps and bounds. However, the increase in plastic consumption has led to a surge in the generation of waste plastics. Since waste plastics decompose or degrade slowly in nature, waste plastics cause huge environmental pollution (ie "white pollution"). In addition, with the rapid development of my country's economy, cars have entered thousands of households and have become a necessity in people's daily life. However, with the prolongation of the use time of automobiles, waste tires have piled up like mountains, which has become an important source of "black pollution". In order to protect and improv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L21/00C08L23/08C08L91/06C08K13/02C08K5/14C08K5/134C08K3/30
CPCC08J3/223C08J2323/06C08K2201/003C08L23/06C08L2203/18C08L2205/025C08L2205/035C08L2205/06C08L2205/08C08L2207/062C08L2207/066C08L2207/20C08L2207/24C08L21/00C08L23/0815C08L91/06C08K13/02C08K5/14C08K5/1345C08K2003/3018
Inventor 陈宪宏罗学明胡益兴史军华
Owner HUNAN UNIV OF TECH
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