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Crosslinked polyethylene polynite nanometer composite material

A nano-composite material, cross-linked polyethylene technology, applied in the field of cross-linked polyethylene montmorillonite nano-composite materials, can solve the problems of poor compatibility, increased montmorillonite layer spacing, and slow progress of nano-composite materials. The effect of excellent heat resistance

Inactive Publication Date: 2006-05-03
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because polyethylene does not contain polar groups in its main molecular chain, and montmorillonite is an inorganic substance, the compatibility between polyethylene and montmorillonite is very poor, and polyethylene macromolecular chains are difficult to Entering between the layers of montmorillonite increases the layer spacing of montmorillonite
Therefore, the research on the preparation of nanocomposites by polyethylene intercalation has been progressing slowly.

Method used

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Examples

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Embodiment Construction

[0020] In the raw material composition of cross-linked polyethylene montmorillonite nanocomposite material of this embodiment, adopt peroxide cross-linked polyethylene, montmorillonite is the inorganic montmorillonite that cation exchange capacity is 50-150meq / 100g, by weight The specific content is:

[0021] XLPE: 100

[0022] Montmorillonite: 0.5-50

[0023] Cationic modifier: 0.1-50

[0024] Dispersion medium: 50-2000

[0025] Small molecule monomer: 0.1-50

[0026] In specific implementation, the cationic modifier can be cetyltrimethylammonium chloride, or cetyltrimethylammonium bromide, or octadecyltrimethylammonium chloride, or octadecyltrimethylammonium Dimethylbenzyl ammonium chloride, or their complexes.

[0027] The dispersion medium is water.

[0028] The small molecule monomer is acrylic acid, or acrylate, or glycidyl methacrylate, or maleic anhydride, or acrylamide, or ethyl acetate, or their complexes.

[0029] Specific preparation:

[0030] Preparation m...

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Abstract

The cross-linked polyethylene montmorillonite nanocomposite material is characterized in that the inorganic montmorillonite is organically treated with a cationic modifier to obtain a modified organic montmorillonite; The organic montmorillonite is subjected to secondary functional treatment to obtain a functional montmorillonite suitable for cross-linked polyethylene. The functional montmorillonite after secondary modification is directly melted and compounded with the cross-linked polyethylene to obtain a nano-composite material of the cross-linked polyethylene. The preparation method of the invention is simple and the material performance is superior.

Description

Technical field: [0001] The invention relates to a cross-linked polyethylene montmorillonite nanocomposite material. Background technique: [0002] Since nylon 6 clay nanocomposites were first prepared in Japan in 1987, polymer / clay nanocomposites have attracted extensive attention from researchers from various countries due to their excellent properties. A series of polymer clay nanocomposites have been successfully developed and great breakthroughs have been made in practical applications. However, because polyethylene does not contain polar groups in its main molecular chain, and montmorillonite is an inorganic substance, the compatibility between polyethylene and montmorillonite is very poor, and polyethylene macromolecular chains are difficult to Entering between the layers of montmorillonite increases the layer spacing of montmorillonite. Therefore, the research on the preparation of nanocomposites by polyethylene intercalation has been slow. A successful method of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K9/04
Inventor 徐卫兵翟红波周正发郭汉洋
Owner HEFEI UNIV OF TECH
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