Fire-resistant anti-flaming optical cable and preparation method thereof

A fire-resistant and flame-retardant optical cable technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of large optical fiber transmission loss, brittle fracture of optical cable, distortion, etc., achieve good impact resistance and tear strength, small melting processing characteristics, The effect of high flame resistance

Active Publication Date: 2019-06-07
江苏华脉光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the attenuation value of the high-temperature-resistant optical fiber produced by the invention is 0.5dB/km at 1550nm, and the transmission loss of the optical fiber is relatively large, so it is not suitable for long-distance use
[0005] There are also various excellent flame-retardant sheaths on the surface of the optical fiber to improve the flame-retardant performance of the optical cable, but non-flame-retardant materials s

Method used

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  • Fire-resistant anti-flaming optical cable and preparation method thereof
  • Fire-resistant anti-flaming optical cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] like figure 1 As shown, a fire-resistant and flame-retardant optical cable includes a cable core 1, a protective layer coated outside the cable core, a refractory layer 5 coated outside the outer protective layer, and a sheath layer coated outside the refractory layer, wherein the Described protective layer is inner protective layer 2, intermediate protective layer 3 and outer protective layer 4 three layers, and described inner protective layer 2 is the polyimide coating that thickness is 30-40 μ m, and described intermediate protective layer 3 is that thickness is 1-2mm polyaryletherketone-polysiloxane / polyimide copolymer coating, the outer protective layer 4 is a thermotropic liquid crystal copolyester PET / PHB coating with a thickness of 10-20 μm; The refractory layer 5 is a ceramic polyimide composite tape with a thickness of 0.12-0.2 mm; the sheath layer includes an inner sheath layer 6 and an outer sheath layer 7, and the inner sheath layer 6 h...

Example Embodiment

[0036] Example 2

[0037] like figure 1 As shown, a fire-resistant and flame-retardant optical cable includes a cable core 1, a protective layer coated outside the cable core, a refractory layer 5 coated outside the outer protective layer, and a sheath layer coated outside the refractory layer, wherein the Described protective layer is inner protective layer 2, intermediate protective layer 3 and outer protective layer 4 three layers, and described inner protective layer 2 is the polyimide coating that thickness is 30-40 μ m, and described intermediate protective layer 3 is that thickness is 1-2mm polyaryletherketone-polysiloxane / polyimide copolymer coating, the outer protective layer 4 is a thermotropic liquid crystal copolyester PET / PHB coating with a thickness of 10-20 μm; The refractory layer 5 is a ceramic polyimide composite tape with a thickness of 0.12-0.2 mm; the sheath layer includes an inner sheath layer 6 and an outer sheath layer 7, and the inner sheath layer 6 h...

Example Embodiment

[0039] Example 3

[0040] like figure 2 As shown, a fire-resistant and flame-retardant optical cable includes a cable core 1, a protective layer coated outside the cable core, a refractory layer 5 coated outside the outer protective layer, and a sheath layer coated outside the refractory layer, wherein the Described protective layer is inner protective layer 2, intermediate protective layer 3 and outer protective layer 4 three layers, and described inner protective layer 2 is the polyimide coating that thickness is 30-40 μ m, and described intermediate protective layer 3 is that thickness is 1-2mm polyaryletherketone-polysiloxane / polyimide copolymer coating, the outer protective layer 4 is a thermotropic liquid crystal copolyester PET / PHB coating with a thickness of 10-20 μm; The refractory layer 5 is a ceramic polyimide composite tape with a thickness of 0.12-0.2 mm; the sheath layer includes an inner sheath layer 6 and an outer sheath layer 7, and the inner sheath layer 6 ...

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Abstract

The invention relates to a fire-resistant anti-flaming optical cable, and further relates to a preparation method of the optical cable. The fire-resistant anti-flaming optical cable includes a cable core, protective layers wrapping the cable core, a fire-resistant layer wrapping the protective layers and protecting bush layers wrapping the fire-resistant layer, wherein the protective layers comprise the internal protective layer, the intermediate protective layer and the external protective layer, the internal protective layer is a polyimide coating with the thickness being 30-40 [mu]m, the intermediate protective layer is a polyaryletherketone-polysiloxane or polyimide multi-polymer coating with the thickness being 1-2 mm, and the external protective layer is a thermotropic liquid crystalline copolyester PET or PHB coating with the thickness being 10-20 [mu]m; the fire-resistant layer is a ceramic polyimide composite belt with the thickness being 0.12-0.2 mm; and the protecting bush layers include theinternal protecting bush layer and the external protecting bush layer, the internal protecting bush layer is a ceramic fiber braid layer with the thickness being 0.2-0.8 mm, and the external protecting bush layer is a burn-resistant material layer with the thickness being 0.1-0.5 mm. According to the optical cable, multi-layer fire-resistant anti-flaming design is adopted, and thecommunication performance of the optical cable can be effectively ensured in a fire disaster.

Description

technical field [0001] The invention relates to the field of optical fibers, and more specifically, to a fire-resistant and flame-retardant optical cable and a preparation method thereof. Background technique [0002] Optical fiber is a composite material consisting of an inner quartz portion combined with an outer coating. It is not only widely used in conventional communication fields, but also in other high-tech fields such as sensing, measurement, control, and data acquisition, such as mining industry, aerospace industry, military, oil and gas, and high-temperature medical applications. These fields will involve some special application environments, such as high temperature environments. [0003] At present, the international mainstream high temperature resistant optical fibers mainly include: high temperature resistant acrylic resin coated optical fiber, organic silica gel coated optical fiber, polyimide coated optical fiber and metal coated optical fiber. performanc...

Claims

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Application Information

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IPC IPC(8): G02B6/44
Inventor 叶建胜刘小兵孙国青李国帅叶红亮
Owner 江苏华脉光电科技有限公司
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