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A kind of conductive, barrier polyethylene composition and its preparation method and application

A composition and polyethylene technology, which is applied in the field of conductive and barrier polyethylene compositions, can solve the problems of high composition cost, narrow material processing window, and limited material application range, so as to increase the processing window and excellently prevent static electricity , low cost effect

Active Publication Date: 2015-12-16
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this patent, polyamide is used as the matrix resin, and polyethylene resin is dispersed in the polyamide resin. Since the melt strength of polyamide is low and is greatly affected by temperature and shear strength, the material processing window is narrow. Therefore, the scope of application of the material is limited
In addition, carbon nanotubes are added to the composition, and the resulting composition is expensive

Method used

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  • A kind of conductive, barrier polyethylene composition and its preparation method and application
  • A kind of conductive, barrier polyethylene composition and its preparation method and application
  • A kind of conductive, barrier polyethylene composition and its preparation method and application

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Embodiment Construction

[0034] The present invention will be further described below through specific embodiments. The following examples are preferred implementation forms of the present invention, but the implementation manners of the present invention are not limited by the following examples.

[0035] In the composition formula of the example shown in Table 1: the selected polyethylene is HDPEMS201B of Tatol Company; due to the different melting points and viscosities of polyamides of different types and grades, the melting points selected in this example are 180°C, 220°C, Polyamides with viscosities of 2.1dL / g, 2.4dL / g, 3.4dL / g, 3.8dL / g, and 4.2dL / g at 240°C and 290°C respectively; the compatibilizer is maleic anhydride grafted polyethylene, of which The mass part of grafted maleic anhydride is 0.25 parts, and the grade is Dow’s GR320; the grade of carbon black is Ketjenblack EC300JD, the grade of carbon black I is Ketjenblack EC600JD, and the grade of carbon black II is CONDUCTEX7067; the grade ...

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Abstract

The invention discloses a conductive barrier polyethylene composition, its preparation method and application. The composition comprises: (A) 50-90 parts by mass of base resin, which contains (A1) 70-97 mass% of polyethylene resin and (A2) 3-30 mass% of polyamide resin dispersed in the polyethylene resin (A1) in a multilayer overlapping lamellar structure; (B) 0.1-10 parts by mass of a polyolefin grafted copolymer; and (C) 5-25 parts by mass of carbon black. The composition provided in the invention takes polyethylene as the main base resin, fusion and kneading methods are employed to make the polyamide resin form the multilayer overlapping lamellar structure in the polyethylene resin. With excellent barrier property and conductivity, the polyethylene composition is low in cost, increases the material processing window, broadens the application field of materials, and can be used for preparing containers accommodating fuels and organic solvents, and conveying pipelines, etc.

Description

technical field [0001] The invention relates to a conductive and barrier polyethylene composition, in particular to a conductive and barrier polyethylene composition and its preparation method and application. Background technique [0002] Polyethylene is a non-polar high polymer, low in price, easy to process, has a certain rigidity and toughness, can prevent the penetration of water, is a good packaging material, but the disadvantage is that it cannot prevent the penetration of gas and organic liquids, thus limiting its use. In the packaging industry and other applications requiring high barrier properties. At present, there are three main technologies for improving the barrier properties of polyethylene materials: surface treatment technology, multi-layer co-extrusion technology, and blending barrier technology. Surface treatment technology is to fluorinate or sulfonate the surface of plastic products, or surface coating, etc. The application of this technology is limite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L77/00C08L77/02C08L77/06C08L51/06C08K3/04
Inventor 张超蔡彤旻宁凯军姜苏俊宁方林王鹏宋晓辉易庆锋
Owner KINGFA SCI & TECH CO LTD
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