Anti-radiation high-flame-retardant special optical cable and preparation method thereof

A high flame-retardant and radiation-proof technology, applied in optics, light guides, optical components, etc., can solve the problems of insufficient wear resistance and corrosion resistance, achieve excellent comprehensive performance and prolong service life

Active Publication Date: 2020-11-10
宏安集团有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Patent CN111040448A discloses a thermoplastic polyimide cable material for nuclear power aviation, which combines polyimide, polyetherimide, polyetherimide containing siloxane as the base resin and polarity containing ether bonds Resin and non-polar crystalline resin are combined to form a cable material for nuclear power aviation with plastic processing, heat resistance, radiation resistance, and comprehensive mechanical properties, but the wear resistance and corrosion resistance of this composite material are slightly insufficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A radiation-proof and highly flame-retardant special optical cable, which includes a single optical cable core, which is successively wrapped with a polyimide insulating layer with a thickness of 30 μm, and two layers of polyetheretherketone flame-resistant polyether ether ketone with a thickness of 0.2 mm. A radiation protection layer, a ceramic fiber protective layer with a thickness of 0.6mm and a carbon fiber / carbon nanotube modified polytetrafluoroethylene / polyether ether ketone layer with a thickness of 0.3mm, wherein the carbon fiber / carbon nanotube The modified polytetrafluoroethylene / polyetheretherketone layer contains 2wt.% carbon fibers with a length of 0.01mm, 0.1wt.% carbon nanotubes and 10wt.% polytetrafluoroethylene and the melt index of polyetheretherketone is 60g / 10min.

[0030] The preparation method is as follows: select a single optical cable core that meets the requirements, coat its surface with a polyimide insulating layer with a thickness of 30 μ...

Embodiment 2

[0033] A radiation-proof high flame-retardant special optical cable, which includes a single optical cable core, which is successively wrapped with a polyimide insulating layer with a thickness of 30 μm, and two layers of polyetheretherketone flame-resistant polyether ether ketone with a thickness of 0.1 mm. Radiation protection layer, one layer of aluminum silicate ceramic fiber protection layer with a thickness of 0.4mm and two carbon fiber / carbon nanotube modified polytetrafluoroethylene / polyetheretherketone layers with a thickness of 0.1mm, wherein the carbon fiber / The polytetrafluoroethylene / polyetheretherketone layer modified by carbon nanotubes contains 1wt.% carbon fiber with a length of 0.03mm, 1wt.% carbon nanotubes and 5wt.% polytetrafluoroethylene and the melting of polyetheretherketone The index is 120g / 10min.

[0034] The preparation method is as follows: select a single optical cable core that meets the requirements, coat its surface with a polyimide insulating...

Embodiment 3

[0037] A radiation-proof high flame-retardant special optical cable, which includes a single optical cable core, which is successively wrapped with a polyimide insulating layer with a thickness of 40 μm, and a single layer of polyether ether ketone with a thickness of 0.2 mm. Radiation layer, a protective layer of aluminum silicate ceramic fiber with a thickness of 0.2mm and a carbon fiber / carbon nanotube modified polytetrafluoroethylene / polyether ether ketone layer with a thickness of 0.6mm, wherein the carbon fiber / carbon The nanotube-modified polytetrafluoroethylene / polyetheretherketone layer contains 5wt.% carbon fibers with a length of 0.07mm, 0.5wt.% carbon nanotubes and 15wt.% polytetrafluoroethylene and the melting of polyetheretherketone The index is 150g / 10min.

[0038] The preparation method is as follows: select a single optical cable core that meets the requirements, coat its surface with a polyimide insulating layer with a thickness of 40 μm, and then coat it wit...

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Abstract

The invention provides an anti-radiation high-flame-retardant special optical cable, which comprises at least one cable core; a flame-retardant anti-radiation layer, at least one ceramic fiber protective layer and a flame-retardant wear-resistant layer are sequentially wrapped outside the cable core; the flame-retardant anti-radiation layer is a polyether-ether-ketone layer with the thickness of 0.1-0.2 mm. The flame-retardant wear-resistant layer comprises at least one carbon fiber / carbon nanotube modified polytetrafluoroethylene / polyether-ether-ketone layer with the thickness of 0.1-0.6 mm.The high-radiation-resistance high-flame-retardance special optical cable has excellent flame resistance and high-temperature resistance, can effectively resist radiation aging, has good wear resistance and corrosion resistance, is simple in structure and easy to prepare, and is suitable for being used in extremely severe environments such as nuclear power plants and chemical plants.

Description

technical field [0001] The invention of the present application belongs to the communication optical cable technology, and in particular relates to a radiation-proof and highly flame-retardant special optical cable. Background technique [0002] Due to the particularity of its environment, nuclear power plants have strict requirements on the performance of cables such as high temperature resistance, radiation protection, and aging resistance. Currently, mineral insulated cables are mainly used in domestic nuclear power plants. Mineral insulated cables have excellent heat resistance and flame resistance, but their long-term use in the high-radiation environment of nuclear power plants will easily age and become brittle, which will bring certain safety hazards. In addition, due to the complex operating environment of high salt spray and vibration in nuclear power plants, higher requirements are placed on the corrosion resistance, wear resistance and shock resistance of cables....

Claims

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Application Information

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IPC IPC(8): G02B6/44C08L27/18C08L61/16C08K7/06C08K3/04
CPCC08K2201/011C08L27/18C08L2201/02C08L2203/20G02B6/442G02B6/443G02B6/4436G02B6/4479C08L61/16C08K7/06C08K3/041
Inventor陈卫东张桂林张洪雷
Owner宏安集团有限公司