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Environment-friendly polyethylene/polyamide laminated barrier material and preparation method thereof

A technology of barrier material and polyamide, which is applied in the field of environment-friendly polyethylene/polyamide laminated barrier material, can solve the problems of difficulty in making containers, short production time, low cost, etc., and achieves low equipment requirements and increasingly high barrier performance. , the effect of enhanced adhesion

Inactive Publication Date: 2015-11-11
SUZHOU HONGHENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the methods for preparing high-barrier polymer materials mainly include: (1) sulfonation and fluorination methods, which can effectively improve the barrier properties of materials to gases and solvents, and the processing time is short, but the equipment investment cost is high and the floor area is large. The maintenance cost is high, and the gas sulfonating agent is toxic; (2) multi-layer co-extrusion, this method has short production time, low energy consumption, low cost, good production environmental sanitation conditions, no three wastes, and no residual solvent in the product, but the cost Low, scrap recycling is difficult, film making is easy, and container making is difficult; (3) blending modification, low cost, existing processing equipment can be used, easy to realize industrialization, and scrap recycling is easy, but the blend needs to use a compatibilizer And capacity expansion technology, high processing parameters

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  • Environment-friendly polyethylene/polyamide laminated barrier material and preparation method thereof

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Effect test

Embodiment 1

[0032] An environment-friendly polyethylene / polyamide laminate barrier material, in parts by weight, comprises the following components:

[0033] 20 parts of polyamide, 20 parts of polyethylene,

[0034] 5 parts of ethylene-acrylic acid copolymer,

[0035] 2 parts of carbon nanotubes, 1 part of catalyst,

[0036] 2 parts of stabilizer, 3 parts of lubricant.

[0037] Its preparation method comprises the following steps:

[0038] (1) Reflux the carbon nanotubes and concentrated nitric acid solution at 120° C. for 2 hours, filter, and dry in vacuum to obtain carboxylated carbon nanotubes;

[0039] (2) Add polyamide, polyethylene, and ethylene-acrylic acid copolymer into a high-speed mixer, mix and stir for 20 minutes at 8000 rpm and a temperature of 150°C, and continue to add the carboxylated compound obtained in step (1). Carbon nanotubes, catalysts, stabilizers, lubricants, and continue to stir for 20 minutes to obtain a mixed slurry;

[0040] (3) With the mixed slurry obt...

Embodiment 2

[0042] An environment-friendly polyethylene / polyamide laminate barrier material, in parts by weight, comprises the following components:

[0043] 50 parts of polyamide, 30 parts of polyethylene,

[0044] 10 parts of ethylene-acrylic acid copolymer,

[0045] 5 parts of carbon nanotubes, 3 parts of catalyst,

[0046] 5 parts of stabilizer, 6 parts of lubricant.

[0047] Its preparation method comprises the following steps:

[0048] (1) Reflux the carbon nanotubes and concentrated nitric acid solution at 150° C. for 3 hours, filter, and dry in vacuum to obtain carboxylated carbon nanotubes;

[0049] (2) Add polyamide, polyethylene, and ethylene-acrylic acid copolymer to a high-speed mixer, mix and stir for 30 minutes at 10,000 rpm and a temperature of 180°C, and continue to add the carboxylated compound obtained in step (1). Carbon nanotubes, catalysts, stabilizers, lubricants, and continue to stir for 50 minutes to obtain a mixed slurry;

[0050] (3) With the mixed slurry o...

Embodiment 3

[0052] An environment-friendly polyethylene / polyamide laminate barrier material, in parts by weight, comprises the following components:

[0053] 30 parts of polyamide, 22 parts of polyethylene,

[0054] 6 parts of ethylene-acrylic acid copolymer,

[0055] 3 parts of carbon nanotubes, 1.5 parts of catalyst,

[0056] 3 parts of stabilizer, 4 parts of lubricant.

[0057] Its preparation method comprises the following steps:

[0058] (1) Reflux the carbon nanotubes and concentrated nitric acid solution at 130° C. for 2.2 hours, filter, and dry in vacuum to obtain carboxylated carbon nanotubes;

[0059] (2) Add polyamide, polyethylene, and ethylene-acrylic acid copolymer to a high-speed mixer, mix and stir for 22 minutes at 8500 rpm and a temperature of 160°C, and continue to add the carboxylated compound obtained in step (1). Carbon nanotubes, catalysts, stabilizers, lubricants, and continue to stir for 30 minutes to obtain a mixed slurry;

[0060] (3) With the mixed slurry ...

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Abstract

The invention discloses an environment-friendly polyethylene / polyamide laminated barrier material comprising the following components in parts by weight: 2-5 parts of carbon nano-tubes, 5-10 parts of ethylene-acrylate copolymers, 20-50 parts of polyamide, 20-30 parts of polyethylene, 1-3 parts of a catalyst, 2-5 parts of a stabilizer and 3-6 parts of a lubricating agent. The invention also discloses a preparation method of the laminated barrier material. The polyethylene / polyamide laminated barrier material disclosed by the invention is good in barrier property and compatibility, high in shock resistance and resistant to high temperature and is widely applied to the fields of aviation and aerospace.

Description

Technical field: [0001] The invention relates to the field of polymer composite materials, in particular to an environment-friendly polyethylene / polyamide laminate barrier material. Background technique: [0002] Nylon resin has the advantages of good oil resistance, low temperature resistance, termite resistance, easy processing, and good mechanical properties. At present, it is mainly used in automobile fuel tanks and oil pipelines. With the increasing demand for environmental protection, the requirements for oil separation performance of fuel tanks and oil pipelines are also getting higher and higher. Nylon resin has good barrier properties to oxygen, carbon dioxide and hydrocarbon organic solvents, but it is very sensitive to moisture, so it needs to be treated before use. [0003] At present, the methods for preparing high-barrier polymer materials mainly include: (1) sulfonation and fluorination methods, which can effectively improve the barrier properties of material...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L23/06C08L23/08C08K9/04C08K7/24B29C47/92B29B9/06B29C48/92
CPCC08L77/02B29B9/06B29C48/92B29C2948/92514B29C2948/9258B29C2948/92704C08K2201/011C08K2201/016C08L23/06C08L2201/14C08L2205/03C08L2205/08C08L23/0869C08K9/04C08K7/24
Inventor 矫磊
Owner SUZHOU HONGHENG CHEM