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Flame-retardant cable insulating material containing nanometer perovskite oxide and application

A technology of insulating materials and flame-retardant cables, which is applied in the direction of insulators, insulated conductors, and insulated cables, can solve the problems of unsatisfactory flame-retardant performance, and achieve the goals of improving energy-saving performance, increasing anti-aging, and increasing loss-on-ignition index Effect

Inactive Publication Date: 2016-11-16
WENZHOU HONGCHENGXIANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Low-density polyethylene is a commonly used cable insulation material in this field, but its flame retardancy is not satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Preparation of BaTiO 3 With ZIF-90:

[0037] (a) Preparation of nano-titanate template: 0.1mol / l tetraisobutyl titanate was dissolved in 10ml ethylene glycol monomethyl ether, ultrasonically dispersed, stirred evenly, and 25% ammonia water was added to obtain titanium hydroxide precipitation, Deionized wash. Then add 1mol / l KOH aqueous solution, stir for 10-20 minutes, mix well, transfer to a hydrothermal crystallization kettle, and react at 140-200°C for 1-4h. After the reaction is finished, wash and dry to obtain a nano-titanate template;

[0038] Add 15ml of barium nitrate solution with a concentration of 0.2mol / l and 10ml of an aqueous solution of tetramethylammonium hydroxide with a concentration of 0.1mol / l to 2g of nano-titanate nano-template, stir for 2h, mix well, and then carry out 180-220°C hydrothermal reaction for 1-4h, then cooling and precipitation. The finally obtained product was washed with deionized water and methanol respectively. BaTiO 3 T...

Embodiment 2

[0042] (1) Preparation of SrTiO 3 With ZIF-90:

[0043] (a) Preparation of nano-titanate template: 0.3mol / l tetraisobutyl titanate was dissolved in 10ml ethylene glycol monomethyl ether, ultrasonically dispersed, stirred evenly, and 25wt% ammonia water was added to obtain titanium hydroxide precipitation, Deionized wash. Then add 2mol / l KOH aqueous solution, stir for 10-20 minutes, mix evenly, transfer to a hydrothermal crystallization kettle, and react at 140-200°C for 1-4h. After the reaction is finished, wash and dry to obtain a nano-titanate template;

[0044] Add 20ml of strontium nitrate solution with a concentration of 0.2mol / l and 10ml of an aqueous solution of tetramethylammonium hydroxide with a concentration of 0.1mol / l to 2g of nano titanate template, and stir for 2 hours. Thermal reaction for 4h, then cooling and precipitation. The finally obtained product was washed with deionized water and methanol respectively. The size of the product SrTiO3 is 40-60nm.

...

Embodiment 3

[0048] (1) Preparation of CaTiO 3 With ZIF-90:

[0049] (a) Preparation of nano-titanate template: 0.5mol / l tetraisobutyl titanate was dissolved in 10ml ethylene glycol monomethyl ether, ultrasonically dispersed, stirred evenly, and 25wt% ammonia water was added to obtain titanium hydroxide precipitation, Deionized wash. Then add 1mol / l KOH aqueous solution, stir for 10-20 minutes, mix well, transfer to a hydrothermal crystallization kettle, and react at 200°C for 3h. After the reaction is finished, wash and dry to obtain a nano-titanate template;

[0050] Add 15ml of 0.5mol / l calcium nitrate solution and 15ml of 0.3mol / l tetramethylammonium hydroxide aqueous solution to 3g of nano titanate template, stir for 2h, mix well, and then carry out 180℃ water Thermal reaction for 4h, then cooling and precipitation. The finally obtained product was washed with deionized water and methanol respectively. ProductCaTiO 3 The average diameter is 35-55nm.

[0051] (b) Preparation of ...

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PUM

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Abstract

The invention relates to a preparation method of a flame-retardant cable insulating material comprising nano perovskite oxide, said nano perovskite oxide MTiO 3 (M=Ba, Sr, Ca) has a special structure and can be used as a high-quality inorganic nano-oxide material, which can be added to ternary polyester materials (LDPE / EVA / phenolic resin) to improve the heat resistance and strength of insulating materials , reduce the aging time of insulating materials, can keep high temperature without degradation for a long time, and can also maintain a good flame retardant effect, greatly improving the LOI loss on ignition index.

Description

technical field [0001] The invention relates to a flame-retardant cable insulation material comprising nano perovskite oxide, said nano perovskite oxide MTiO 3 (M=Ba, Sr, Ca) has a special structure and can be used as a high-quality inorganic nano-oxide material, which can be added to polyene / polyester / polyalkene materials to improve the heat resistance and strength of insulating materials and reduce the insulation The aging time of the material can keep it from degrading for a long time under the action of high temperature, and it can also maintain a good flame retardant effect and greatly improve the LOI loss on ignition index. Background technique [0002] Commonly used insulating materials in cables are oil-impregnated paper, polyvinyl chloride, polyethylene, cross-linked polyethylene, rubber, etc. In electrotechnical technology, the volume resistivity is greater than 10 9 The material composed of Ω·cm substance is called insulating material, that is, the material used...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L61/06C08L23/08C08K13/02C08K3/36C08K5/12C08K5/315C08K5/523C08K3/34C08K3/24C08K5/56H01B3/44H01B3/36H01B7/295
CPCC08L23/06C08L2201/02C08L2201/08C08L2203/202C08L2205/03C08L2207/066H01B3/36H01B3/441H01B7/295
Inventor 叶澄
Owner WENZHOU HONGCHENGXIANG TECH
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