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Polyamide barrier material and preparation method thereof

A barrier material, polyamide technology, applied in the field of polymers, can solve the problems of expensive raw material cost, poor strength, no obvious improvement of barrier performance, etc., and achieve excellent barrier performance and simple and convenient operation

Active Publication Date: 2020-12-18
BEIJING ENERGY ENG TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the addition of long carbon chain nylon to this material, the toughness of the alloy material is obviously better, but the strength becomes worse
Another disadvantage is that the price of long carbon chain nylon is much higher than that of ordinary nylon. The addition of long carbon chain nylon not only does not significantly improve the barrier performance, but also makes the cost of raw materials more expensive.

Method used

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  • Polyamide barrier material and preparation method thereof

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preparation example Construction

[0061] A second aspect of the present invention provides a method for preparing a polyamide barrier material, the preparation method at least including the following steps:

[0062] (1) Add polyamide resin, thermoplastic polyester, antioxidant, toughening agent, lubricant, and dispersant to a high-speed mixer and mix evenly;

[0063] (2) Put the mixture obtained in the step (1) in a twin-screw machine, extrude and granulate, and the melt pressure is 10-20 MPa.

Embodiment 1

[0069] Provided is a polyamide barrier material. In parts by weight, the preparation raw materials include: 56 parts of polyamide resin, 38 parts of thermoplastic polyester, 1.5-2.5 parts of antioxidant, 1 part of toughening agent, 1.5 parts of lubricant, dispersion 0.5 parts of the agent.

[0070] The polyamide resin is nylon MXD6. The density of the nylon MXD6 is 1.19g / cm 3 . The nylon MXD6 can be obtained commercially, the manufacturer is Shanghai Yingguo Industry Co., Ltd., and the brand name is nylon MXD6AP250.

[0071] The thermoplastic polyester is polyethylene terephthalate. The polyethylene terephthalate can be obtained commercially, the manufacturer is DuPont USA, and the brand name is PET DuPont 19045 USA.

[0072] The antioxidant is N,N bis[3(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hexamethylenediamine.

[0073] The toughening agent is POE grafted maleic anhydride.

[0074] The lubricant is N,N'-ethylene bisstearamide.

[0075] The dispersant is montan w...

Embodiment 2

[0080] Provided is a polyamide barrier material, prepared raw materials in parts by weight: 70 parts of polyamide resin, 50 parts of thermoplastic polyester, 3 parts of antioxidant, 1.5 parts of toughening agent, 2 parts of lubricant, 1 part of dispersant share.

[0081] The polyamide resin is nylon MXD6. The density of the nylon MXD6 is 1.19g / cm 3 . The nylon MXD6 can be obtained commercially, the manufacturer is Shanghai Yingguo Industry Co., Ltd., and the brand name is nylon MXD6AP250.

[0082] The thermoplastic polyester is polyethylene terephthalate. The polyethylene terephthalate can be obtained commercially, the manufacturer is DuPont USA, and the brand name is PET DuPont 19045 USA.

[0083] The antioxidant is N,N bis[3(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hexamethylenediamine.

[0084] The toughening agent is POE grafted maleic anhydride.

[0085] The lubricant is N,N'-ethylene bisstearamide.

[0086] The dispersant is montan wax.

[0087] The preparatio...

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Abstract

The invention relates to the technical field of macromolecules, in particular to a polyamide barrier material and a preparation method thereof. The polyamide barrier material at least comprises the following preparation raw materials in parts by weight: 50-70 parts of polyamide resin, 30-50 parts of thermoplastic polyester, 1-3 parts of an antioxidant, 0.1-1.5 parts of a toughening agent, 0.5-2 part of a lubricating agent and 0.1-1 part of a dispersing agent.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a polyamide barrier material and a preparation method thereof. Background technique [0002] With the continuous development of polymer materials, polymer materials have become more and more important in the field of packaging applications. Compared with traditional materials such as metal and glass, plastics have the characteristics of light weight, easy molding, easy processing and not fragile. . However, its barrier properties to gases and organic solvents are poor. At the same time, polymer materials cannot completely barrier properties to gas or liquid molecules like metal materials or glass materials, which greatly limits the application of polyamide materials. application range. [0003] Polyamide, commonly known as nylon, is an engineering plastic with excellent performance. It has good wear resistance, plasticity and mechanical properties. It is widely used in constru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L67/02C08L51/06C08L91/06C08K5/20
CPCC08L77/06C08L2201/14C08L2205/035C08K2201/014C08L67/02C08L51/06C08L91/06C08K5/20
Inventor 吴夏胡光超赵岩
Owner BEIJING ENERGY ENG TECH
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