Water-tree-resistant polyethylene insulation nano-composite material and preparation method thereof

A nano-composite material and polyethylene insulation technology, which is applied in the field of water-tree-resistant polyethylene insulation nano-composite materials and its preparation, can solve problems such as difficult resin matrix uniform dispersion, difficult resin matrix compatibility, and easy aggregation of inorganic nanoparticles , to achieve excellent water tree resistance, good compatibility, and not easy to reunite

Inactive Publication Date: 2014-12-24
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, inorganic nanoparticles are easy to agglomerate, and are not easy to be compatible with the resin matrix, so it is difficult to disperse evenly in the resin matrix, so it is difficult to play a role

Method used

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  • Water-tree-resistant polyethylene insulation nano-composite material and preparation method thereof
  • Water-tree-resistant polyethylene insulation nano-composite material and preparation method thereof
  • Water-tree-resistant polyethylene insulation nano-composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Described a kind of anti-water tree polyethylene insulating nanocomposite material, it comprises the composition and weight part are:

[0024]

[0025] In a preferred embodiment, the silane coupling agent is vinyltrimethoxysilane,

[0026] In a preferred embodiment, the cross-linking agent is one or a mixture of dicumyl peroxide (DCP) and benzoyl peroxide (BPO).

[0027] In a preferred embodiment, the antioxidant is a mixture of one or more of antioxidant 300, antioxidant 1010, antioxidant 1024 or antioxidant 697, and a mixture of one or more of antioxidants. 300 is a typical thiobisphenol antioxidant. Because of its special structure, it has the dual functions of free radical terminator and hydroperoxide decomposer, and shows excellent synergistic effect when used with carbon black, which is incomparable with commonly used antioxidants; Agent 1010 has excellent antioxidant properties for polypropylene and polyethylene. It can effectively extend the service life o...

Embodiment 2

[0030] The water-tree-resistant polyethylene insulating nanocomposite material of the present invention comprises the following components and parts by weight:

[0031]

[0032] In a preferred embodiment, the silane coupling agent is vinyltrimethoxysilane.

[0033] In a preferred embodiment, the cross-linking agent is one or a mixture of dicumyl peroxide and benzoyl peroxide.

[0034] In a preferred embodiment, the antioxidant is a mixture of one or more of antioxidant 300, antioxidant 1010, antioxidant 1024 or antioxidant 697, and a mixture of one or more of antioxidants. 300 is a typical thiobisphenol antioxidant. Because of its special structure, it has the dual functions of free radical terminator and hydroperoxide decomposer, and shows excellent synergistic effect when used with carbon black, which is incomparable with commonly used antioxidants; Agent 1010 has excellent antioxidant properties for polypropylene and polyethylene. It can effectively extend the service...

Embodiment 3

[0037] The water-tree-resistant polyethylene insulating nanocomposite material of the present invention comprises the following components and parts by weight:

[0038]

[0039] In a preferred embodiment, the silane coupling agent is vinyltrimethoxysilane.

[0040] In a preferred embodiment, the cross-linking agent is one or a mixture of dicumyl peroxide and benzoyl peroxide.

[0041] In a preferred embodiment, the antioxidant is a mixture of one or more of antioxidant 300, antioxidant 1010, antioxidant 1024 or antioxidant 697.

[0042] A cable comprising the above-mentioned water-tree-resistant polyethylene insulating nanocomposite material, and its partial use and full use in the cable fall within the protection scope of the present invention.

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PUM

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Abstract

The invention relates to a water-tree-resistant polyethylene insulation nano-composite material which comprises the following components in parts by weight: 100 parts of polyethylene resin, 1.5-3 parts of a cross-linking agent, 0.1-2 parts of an antioxidant, 1-6 parts of nano SiO2 and 0.1-2 parts of a silane coupling agent. According to the nano-composite material, nano SiO2 particles are subjected to surface treatment by adopting the silane coupling agent, so that the surface energy of the nano particles is reduced, the nano particles are hardly agglomerated, can be well compatible with a polyethylene resin matrix and can be easily and uniformly dispersed in the resin matrix, the purpose of nano-sized dispersion is achieved, and the nano-composite material is excellent in water tree resistance; meanwhile, the heat resistance, impact strength and dielectric property of the nano-composite material are remarkably superior to those of a general polyethylene insulation material.

Description

technical field [0001] The invention relates to a water-tree-resistant polyethylene insulating nano-composite material and a preparation method thereof. Background technique [0002] Cross-linked polyethylene (XLPE) insulated power cable (hereinafter referred to as cross-linked cable) will produce dendritic discharge channels under the action of electric field and water, a phenomenon called water tree. The water tree will continue to grow with the development of time, eventually leading to insulation breakdown, which is an important reason for the early damage of power cables; the production and application of ordinary cross-linked cables has a history of nearly 30 years. Excellent electrical and mechanical properties, but in practical applications, the environment for cable laying is usually harsh. Water tree ability, the insulation will gradually absorb the moisture in the environment under long-term use, and because there are a large number of tiny voids in the cable ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/06C08K9/06C08K5/14C08K3/36
CPCC08K13/06C08K3/36C08K5/1345C08K5/14C08K5/20C08K5/25C08K5/375C08K9/06C08K2201/011C08L2201/08C08L2203/202
Inventor 孙玉萍张贤灵程晓松施展
Owner SUZHOU HENGLI COMM MATERIAL
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