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Modified polycarbonate material for cable and preparation method thereof

A technology of polycarbonate and modified materials, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problem of low breakdown voltage, improve breakdown voltage, reduce electrical treeing and corona phenomenon, The effect of increasing the service life

Inactive Publication Date: 2018-02-23
SICHUAN LIZHI JIUCHUANG INTPROP OPERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect of low breakdown voltage existing in the polycarbonate insulating material used for cables, and to provide a modified polycarbonate material for cables and a preparation method thereof; Aluminum oxide particles are added to polycarbonate for mixed modification, which significantly improves the breakdown voltage of polycarbonate. The modified polycarbonate material can be used in high-voltage cables

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Treat 10 parts of porous ceramics with a particle size of 1 μm, a porosity of 25%, and a pore size of 35 nm with 0.8 parts of a silane coupling agent;

[0031] (2) Loading 0.002 parts of graphene and 0.5 parts of nano-alumina with a particle size of 5nm on the porous ceramic;

[0032] (3) Coating the porous ceramics loaded with graphene and nano-alumina with 15 parts of polyoxyethyl benzoate under negative pressure conditions to obtain an intermediate;

[0033] (4) The intermediate was uniformly mixed with 65 parts of polycarbonate and 3 parts of fatty acid zinc, and then extruded with an extruder to obtain a polycarbonate modified material for cables.

Embodiment 2

[0035] (1) Treat 8 parts of porous ceramics with a particle size of 2 μm, a porosity of 40%, and a pore size of 50 nm with 0.5 parts of a silane coupling agent;

[0036] (2) Loading 0.003 parts of graphene and 0.3 parts of nano-alumina with a particle size of 10nm on the porous ceramic;

[0037] (3) Coating the porous ceramics loaded with graphene and nano-alumina with 12 parts of polyoxyethyl benzoate under negative pressure conditions to obtain an intermediate;

[0038] (4) The intermediate was uniformly mixed with 55 parts of polycarbonate and 1 part of fatty acid zinc, and then extruded with an extruder to obtain a polycarbonate modified material for cables.

Embodiment 3

[0040] (1) Treat 12 parts of porous ceramics with a particle size of 0.1 μm, a porosity of 20%, and a pore size of 20 nm with 1.2 parts of a silane coupling agent;

[0041] (2) Loading 0.001 parts of graphene and 0.8 parts of nano-alumina with a particle size of 2nm on the porous ceramic;

[0042] (3) Coating the porous ceramics loaded with graphene and nano-alumina with 18 parts of polyoxyethyl benzoate under negative pressure conditions to obtain an intermediate;

[0043] (4) The intermediate was uniformly mixed with 75 parts of polycarbonate and 5 parts of fatty acid zinc, and then extruded with an extruder to obtain a polycarbonate modified material for cables.

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Abstract

The invention discloses a polycarbonate modified material for cables and a preparation method thereof. The polycarbonate modified material for cables is prepared from the following raw materials in parts by weight: 0.3-0.8 parts of nano-alumina, 8-12 parts Porous ceramics, 0.001-0.003 parts of graphene, 12-18 parts of polyoxyethyl benzoate, 55-75 parts of polycarbonate, 0.5-1.2 parts of coupling agent, 1-5 parts of stabilizer ; The cable uses polycarbonate modified material to add modified nano-alumina particles to polycarbonate for mixed modification, which significantly improves the breakdown voltage of polycarbonate. The modified polycarbonate material Can be used in high voltage cables.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to a polycarbonate modified material for cables and a preparation method thereof. Background technique [0002] The cable is made of one or more wires twisted to form a conductor core, and then a corresponding insulating layer is applied to the conductor, and a sealed sheath is formed on the outside. It is mainly composed of a core, an insulating layer, and a shielding layer. and sheath layer. The cable occupies less ground and space; the power supply is safe and reliable, and the possibility of electric shock is small; it is beneficial to improve the power factor of the power system; the operation and maintenance work is simple and convenient; it is beneficial to beautify the city and has many advantages such as confidentiality. It is widely used in life. and all areas of production. [0003] The function of the insulating layer in the cable is to electrically isolate the core from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K9/12C08K9/10C08K3/22C08K3/04H01B3/42
CPCC08K9/12C08K3/04C08K3/22C08K5/098C08K9/10C08K2003/2227C08K2201/003C08K2201/011C08L2203/202H01B3/426C08L69/00
Inventor 舒春柳
Owner SICHUAN LIZHI JIUCHUANG INTPROP OPERATION CO LTD
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