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Flame-retardant cable insulating material containing NCNFS/ZIF-90 and application

A technology of ZIF-90 and insulating materials, which is applied in the direction of plastic/resin/wax insulators, insulators, organic insulators, etc., can solve the problems of unsatisfactory flame retardancy, improve service life, increase average breakdown strength, increase The effect of the number of traps

Inactive Publication Date: 2016-08-10
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

[0031] (1) First prepare the flame retardant compound NCNFS / ZIF-90:

[0032] Immerse carbon nanofibers in a solution containing ammonia water, and react hydrothermally at 150°C in a polytetrafluoroethylene hydrothermal reactor for 1 hour to obtain NCNFS. The doping amount of N is controlled to be 3wt% (based on N-CNFS ).

[0033] Preparation of ZIF-90: Zn(NO 3 ) 2 6H 2 O (2.1mmol) and ICA (3.0mmol) were dissolved in 30mL of DMF and stirred evenly, the resulting reaction solution was transferred to a 40mL polytetrafluoroethylene-lined reactor and reacted at 100°C for 18h and naturally cooled to room temperature for later use;

[0034] Add NCNFS into the above reaction kettle, control the temperature at 70°C, mix for 30 minutes, and dry to obtain NCNFS / ZIF composite material, which is ready for use.

[0035] (2) Dissolve the above composite material, low-density polyethylene LDPE, and polystyrene PS in toluene, mix them, keep the temperature at 80-120°C, stir for 2 hours, a...

Embodiment 2

[0038] (1) First prepare the flame retardant compound NCNFS / ZIF-90:

[0039] Immerse the carbon nanofibers in a solution containing ammonia water, and conduct a hydrothermal reaction at 160°C in a polytetrafluoroethylene hydrothermal reactor for 1 hour to obtain NCNFS. The doping amount of N is controlled to be 5wt% (based on N-CNFS ).

[0040] Preparation of ZIF-90: Zn(NO 3 ) 2 6H 2 O (2.1mmol) and ICA (3.0mmol) were dissolved in 30mL of DMF and stirred evenly, the resulting reaction solution was transferred to a 40mL polytetrafluoroethylene-lined reactor and reacted at 100°C for 18h and naturally cooled to room temperature for later use;

[0041] Add NCNFS to the above reaction kettle, control the temperature at 60°C, mix for 30 minutes, and dry at 100°C for 30 minutes to obtain NCNFS / ZIF composite material, which is ready for use.

[0042] (2) Dissolve the above composite material, low-density polyethylene LDPE, and polystyrene PS in toluene, mix them, keep the tempera...

Embodiment 3

[0045] (1) First prepare the flame retardant compound NCNFS / ZIF-90:

[0046] Immerse carbon nanofibers in a solution containing ammonia water, and conduct a hydrothermal reaction at 150°C in a polytetrafluoroethylene hydrothermal reactor for 3 hours to obtain NCNFS. The doping amount of N is controlled to 1wt% (based on N-CNFS ).

[0047] Preparation of ZIF-90: Zn(NO 3 ) 2 6H 2 O (2.1mmol) and ICA (3.0mmol) were dissolved in 30mL of DMF and stirred evenly, the resulting reaction solution was transferred to a 40mL polytetrafluoroethylene-lined reactor and reacted at 100°C for 18h and naturally cooled to room temperature for later use;

[0048] Add NCNFS into the above reaction kettle, control the temperature at 80°C, mix for 30 minutes, and dry to obtain NCNFS / ZIF composite material, which is ready for use.

[0049] (2) Dissolve the above composite material, low-density polyethylene LDPE, and polystyrene PS in toluene, mix them, keep the temperature at 100°C, stir for 2 ho...

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Abstract

The invention relates to a flame-retardant cable insulating material containing NCNFS / ZIF-90. The material comprises a NCNFS / ZIF-90 polyene material, namely NCNFS / ZIF / LDPE / PS, can improve the heat resistance and strength of the material, reduce the ageing time of the insulating material, keep being not degraded for a long time under high temperature effect, and keep good flame-retardant effect, and greatly improves the LOI (Loss On Ignition) index.

Description

technical field [0001] The present invention relates to a flame-retardant cable insulation material comprising NCNFS / ZIF-90, the cable insulation material comprises NCNFS / ZIF-90 polyolefin material, namely NCNFS / ZIF-90 / LDPE / PS, which can improve the performance of the insulation material. Heat resistance and strength, reduce the aging time of insulating materials, can maintain 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. 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 to make the device electrically prevent the passage of current. XLPE has excellent dielectric proper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L25/06C08L61/06C08L63/00C08K13/06C08K9/02C08K7/06C08K5/3445C08K3/22C08K3/36C08K5/3492C08K3/32H01B3/44
CPCC08L23/06C08K2201/003C08K2201/006C08K2201/011C08L2201/02C08L2201/08C08L2203/202C08L2205/035C08L2207/066H01B3/441
Inventor 叶澄
Owner WENZHOU HONGCHENGXIANG TECH
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