Nano-composite type insulated flame-retardant cable material

A technology of flame-retardant cables and nanomaterials, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve problems such as reducing the service life of cables, and achieve the effects of improving processing performance, avoiding polymerization, and increasing average breakdown strength.

Inactive Publication Date: 2017-11-21
新沂市中诺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the working electric field strength of the insulating polymer reaches one-tenth of the breakdown electric field strength, dendrites will be caused in the insulation of power equipment working for a long time, which will reduce the service life of the cable.

Method used

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  • Nano-composite type insulated flame-retardant cable material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A nanocomposite insulating cable material, the preparation method of which comprises the following steps:

[0019] Weigh 100 parts of polyene modified LDHS / MCM-22 nanomaterials, 40 parts of modified tert-butylphenol phenamine resin, 36 parts of phenolic resin, 10 parts of hydroxyapatite, 8 parts of N-ethyl-N-benzene Zinc dithiocarbamate, 20 parts ethylene propylene rubber, 7 parts dicyclohexyl phthalate. The above components are mixed separately, then hot-melted, extruded through a die with a through hole to prepare a cable material that meets the requirements, then cooled by water, and dried to obtain nano-insulated flame-retardant materials. Material.

[0020] The preparation method of described polyene modified LDHS / MCM-22 nanometer material is as follows:

[0021] Step 1. Put 500g of MCM-22 raw powder into a quartz tube, and bake it at a rate of 3°C / min from 25°C to 540°C under a nitrogen flow, and then place it in a muffle furnace at 540°C for another 3 hours to ...

Embodiment 2

[0030] Weigh 80 parts of polyene modified LDHS / MCM-22 nanomaterials, 50 parts of modified tert-butylphenol phenamine resin, 36 parts of phenolic resin, 10 parts of hydroxyapatite, 8 parts of N-ethyl-N-benzene Zinc dithiocarbamate, 20 parts ethylene propylene rubber, 7 parts dicyclohexyl phthalate. The above components are mixed separately, then hot-melted, extruded through a die with a through hole to prepare a cable material that meets the requirements, then cooled by water, and dried to obtain nano-insulated flame-retardant materials. Material. All the other preparations are the same as in Example 1.

Embodiment 3

[0032] Weigh 60 parts of polyene modified LDHS / MCM-22 nanomaterials, 60 parts of modified tert-butylphenol phenamine resin, 36 parts of phenolic resin, 10 parts of hydroxyapatite, 8 parts of N-ethyl-N-benzene Zinc dithiocarbamate, 20 parts ethylene propylene rubber, 7 parts dicyclohexyl phthalate. The above components are mixed separately, then hot-melted, extruded through a die with a through hole to prepare a cable material that meets the requirements, then cooled by water, and dried to obtain nano-insulated flame-retardant materials. Material.

[0033] All the other preparations are the same as in Example 1.

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PUM

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Abstract

The invention discloses a nano-composite type insulated flame-retardant cable material. By using MCM-22 raw powder, low-density polyethylene, polystyrene, bert-butyl phenol, phenolic resin, hydroxyapatite, N-ethyl-N-zinc phenyldithiocarbamate and ethylene-propylene rubber as main raw materials, LDH metal ion exchange on the an MCM-22 nano-material is carried out and then low-density polyethylene modification treatment on the nano-material is carried out; by componding a bert-butyl phenol phenol-amine resin with a polyene modified material, an environment-friendly nano insulated cable material can be prepared. According to the nano-composite type insulated flame-retardant cable material disclosed by the invention, the LDH metal ion exchange on the MCM-22 nano-material is carried out and then low-density polyethylene modification treatment on the nano-material is carried out, and the bert-butyl phenol phenol-amine resin and the polyene modified material are compounded, so that a part of the nano-material can produce more inorganic nano insulated components and the other part of the nano-material can improve the charge flow, and therefore, the average breakdown strength is enhanced, the process indexes are improved, and the material has excellent insulativity and flame retardance.

Description

technical field [0001] The invention relates to a nano-composite insulating flame-retardant cable material, which belongs to the field of cable equipment. Background technique [0002] Commonly used insulating materials in cables are oil-impregnated paper, polyvinyl chloride, polyethylene, cross-linked polyethylene, rubber, etc. in electrician [0003] Technically, the volume resistivity is greater than 10^ 9 The material composed of Ω cm is called insulating material, that is, the material used to make the device electrically prevent the passage of current. XLPE has excellent dielectric and mechanical properties, and has been widely used in high-voltage and ultra-high-voltage plastic-insulated power cables. With the development of ultra-high voltage and ultra-high voltage direct current transmission and transformation systems, the problem of insulation aging during operation has become more and more serious, which has become the main obstacle for the development of insul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L23/06C08L61/34C08L61/06C08L23/16C08K13/06C08K9/04C08K3/26C08K3/32C08K5/39C08K5/12H01B3/44H01B3/36H01B3/38
CPCC08L25/06C08K2003/325C08K2201/011C08L61/34C08L2201/02C08L2203/202C08L2205/035C08L2207/066H01B3/36H01B3/38H01B3/442C08L23/06C08L61/06C08L23/16C08K13/06C08K9/08C08K3/26C08K3/32C08K5/39C08K5/12
Inventor 李刚
Owner 新沂市中诺新材料科技有限公司
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