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High-density polyethylene (HDPE) modified material and preparation method thereof

A high-density polyethylene and modified material technology, which is applied in the field of plastic modification, can solve the problems of poor impact resistance, easy color change of high-density polyethylene, and insufficient aging resistance, so as to improve impact resistance and environmental resistance The effects of stress, high toughness, excellent aging resistance and impact resistance

Inactive Publication Date: 2015-04-01
CHENGDU JINHUI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims to solve the defects that high-density polyethylene is easy to change color when used as food packaging, the aging resistance is not high enough, and the impact resistance is poor, and proposes a high-density polyethylene modified material and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A modified high-density polyethylene material composed of the following raw materials in parts by weight: 55 parts of high-density polyethylene, 1 part of polyethylene octene co-elastomer, 10 parts of polyurethane resin, 8 parts of calcium carbonate powder, 8 parts of metal modified polyethylene, 2 parts of polyethylene wax, 1 part of light stabilizer, and 0.1 part of ultraviolet absorber.

[0019] The particle size of the calcium carbonate powder in this example is 0.26 μm.

[0020] The light stabilizer is light stabilizer GW-540.

[0021] The ultraviolet absorber is salicylate, which is composed of phenyl o-hydroxybenzoate. It is an acrylic resin product approved by the U.S. Food and Drug Administration for food contact. It is used for food packaging with high safety and can Extend the service life of food packaging bags.

[0022] In this embodiment, the equipment used for detecting the particle size of calcium carbonate powder is a JL-1177 laser particle size distribution m...

Embodiment 2

[0024] A modified high-density polyethylene material composed of the following raw materials in parts by weight: 65 parts of high-density polyethylene, 4 parts of polyethylene octene co-elastomer, 20 parts of polyurethane resin, 15 parts of calcium carbonate powder, and 15 parts of metal modified polyethylene, 8 parts of polyethylene wax, 5 parts of light stabilizer, 3 parts of ultraviolet absorber.

[0025] The particle size of the calcium carbonate powder in this embodiment is 0.28 μm.

[0026] The light stabilizer is light stabilizer 744.

[0027] The ultraviolet absorber is salicylate, which is composed of phenyl o-hydroxybenzoate. It is an acrylic resin product approved by the U.S. Food and Drug Administration for food contact. It is used for food packaging with high safety and can Extend the service life of food packaging bags.

[0028] In this embodiment, the equipment used for detecting the particle size of calcium carbonate powder is a JL-1177 laser particle size distributio...

Embodiment 3

[0034] A modified high-density polyethylene material consisting of the following raw materials in parts by weight: 60 parts of high-density polyethylene, 3 parts of polyethylene octene co-elastomer, 15 parts of polyurethane resin, 10 parts of calcium carbonate powder, 12 parts of metal modified polyethylene, 5 parts of polyethylene wax, 3 parts of light stabilizer, 1 part of ultraviolet absorber.

[0035] The particle size of the calcium carbonate powder in this example is 0.25 μm.

[0036] The light stabilizer is light stabilizer 744.

[0037] The ultraviolet absorber is salicylate, which is composed of phenyl o-hydroxybenzoate. It is an acrylic resin product approved by the U.S. Food and Drug Administration for food contact. It is used for food packaging with high safety and can Extend the service life of food packaging bags.

[0038] In this embodiment, the equipment used for detecting the particle size of calcium carbonate powder is a JL-1177 laser particle size distribution mete...

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Abstract

The invention discloses a high-density polyethylene (HDPE) modified material, which is composed of the following raw materials in parts by weight: 55-65 parts of HDPE, 1-4 parts of polyethylene octylene blending elastomer, 10-20 parts of polyurethane resin, 8-15 parts of calcium carbonate powder, 8-15 parts of metallocene modified polyethylene, 2-8 parts of polyethylene wax, 1-5 parts of light stabilizer, and 0.1-3 parts of ultraviolet light absorber. The invention further discloses a preparation method of the HDPE modified material. The preparation method comprises the steps of mixing, extruding, cooling, granulating and the like. The HDPE modified material disclosed by the invention has ageing-resistant ability and impact-resistant ability, and has the advantages of being high in toughness and difficult to change colour.

Description

Technical field [0001] The invention relates to the technical field of plastic modification, in particular to a high-density polyethylene modified material and a preparation method thereof. Background technique [0002] Polyethylene is classified into high-density polyethylene, low-density polyethylene and linear low-density polyethylene according to the polymerization method, molecular weight, and chain structure. Low density polyethylene (LOW DENSITY POLYETHYLENE, LDPE) is commonly known as high pressure polyethylene. Because of its low density, it has the softest material and is mainly used in plastic bags and agricultural films. High-density polyethylene (HIGH DENSITY POLYETHYLENE, HDPE) is commonly known as low-pressure polyethylene. Compared with LDPE and LLDPE, it has higher temperature resistance, oil resistance, steam permeability resistance, and electrical insulation, impact resistance and cold resistance. Good, mainly used in blow molding, injection molding and other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L75/04C08K13/02C08K3/26C08K5/134B29C47/92B29C48/92
CPCC08L23/06B29C48/92B29C2948/92514B29C2948/9259B29C2948/92704C08K2201/003C08L2205/035C08L2207/062C08L23/0815C08L75/04C08L23/26C08K2003/265C08K5/134C08K5/524C08K5/3435C08K13/02
Inventor 张一帆
Owner CHENGDU JINHUI TECH
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