High oxygen barrier polyethylene/nylon 6 nanocomposite material and preparation method thereof

A technology of nano-composite materials and high-density polyethylene, applied in flat products, other household appliances, applications, etc., can solve the problems of poor universality, achieve low cost, simple and easy-to-operate process, and improve barrier performance

Active Publication Date: 2015-11-18
国家复合改性聚合物材料工程技术研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the xylene barrier properties of the sample bottle prepared by this method are significantly improved, the formation of the laminated structure mainly depends on the molding process of the subsequent product, and the universality is poor

Method used

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  • High oxygen barrier polyethylene/nylon 6 nanocomposite material and preparation method thereof
  • High oxygen barrier polyethylene/nylon 6 nanocomposite material and preparation method thereof
  • High oxygen barrier polyethylene/nylon 6 nanocomposite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0021] Example 1 of the present invention: High oxygen barrier polyethylene nylon 6 nanocomposite material, calculated in parts by weight, including 70 parts of high-density polyethylene, 630 parts of nylon, 3 parts of bifunctional organically modified montmorillonite, compatible 1 part of agent and 0.005 part of antioxidant; the compatibilizer is ethylene-acrylic acid copolymer; the melt index of the high-density polyethylene is between 0.3-0.5.

[0022] The preparation method of high-barrier polyethylene nylon 6 nanometer composite material comprises the steps:

[0023] 1) First, dry the bifunctional organic modified montmorillonite in an oven at 90°C for 12 hours, and dry the compatibilizer in an oven at 50°C for 2 hours; then dry the dried bifunctional organic The modified montmorillonite, high-density polyethylene and compatibilizer were melt-blended and granulated with a parallel twin-screw extruder according to the above mass fractions. The screw speed of the parallel t...

Embodiment 2

[0025] Example 2 of the present invention: high oxygen barrier polyethylene nylon 6 nanocomposite material, calculated in parts by weight, including 70 parts of high-density polyethylene, 630 parts of nylon, 3 parts of bifunctional organically modified montmorillonite, compatible 3 parts of agent and 0.005 part of antioxidant; the compatibilizer is ethylene-acrylic acid copolymer; the melt index of the high-density polyethylene is between 0.3-0.5.

[0026] The preparation method is the same as in Example 1.

Embodiment 3

[0027] Example 3 of the present invention: high oxygen barrier polyethylene nylon 6 nanocomposite material, calculated in parts by weight, including 70 parts of high-density polyethylene, 630 parts of nylon, and 3 parts of bifunctional organically modified montmorillonite, compatible 5 parts of agent and 0.005 part of antioxidant; the compatibilizer is ethylene-acrylic acid copolymer; the melt index of the high density polyethylene is between 0.3-0.5.

[0028] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a high oxygen barrier polyethylene/nylon 6 nanocomposite material and a preparation method thereof. A lamellar dispersion phase form is obtained through regulating the viscosity of a matrix phase and the properties of a phase interface in order to improve the barrier performance of the material and a product. The preparation method is unaffected by a product molding process, has the advantages of strong universality, wide application range, simple process and easy operation, and is very suitable for industrial production. The preparation method is simple and easy, and the material has the advantages of wide sources, low cost and good use effect.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-oxygen barrier polyethylene nylon 6 nanocomposite material and a preparation method thereof. Background technique [0002] Oxygen barrier packaging materials are critical to extending the shelf life and shelf life of food and pharmaceuticals. Polyethylene (PE), as a polymer packaging material widely used in food and medicine, has good barrier properties to water, etc., but has poor barrier properties to gases such as oxygen and carbon dioxide, and cannot be used to package some oxygen-sensitive foods. Or medicines, thus limiting its scope of application. [0003] In order to improve the oxygen barrier properties of polyethylene, the method widely concerned by the industry is to blend polymers with higher oxygen barrier properties with polyethylene or add a small amount of layered nano-fillers. Chinese patent CN200810208099.9 discloses a method for preparing hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L77/02C08L23/08C08L51/06C08K9/06C08K9/04C08K3/34B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704B29L2007/00C08J5/18C08J2323/06C08K2201/011C08L23/06C08L2201/14C08L2203/16C08L2205/03C08L2205/035C08L2205/08C08L2207/062C08L77/02C08L23/0869C08K9/04C08K9/06C08K3/346C08L51/06
Inventor 徐国敏杨照秦舒浩孙静何文涛吉玉碧
Owner 国家复合改性聚合物材料工程技术研究中心
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