A kind of aerospace optical cable and preparation method thereof

A technology for aerospace and optical cables, which is applied in the field of ultra-light optical cables for communication. It can solve problems such as the performance degradation of optical fibers and outer sheath materials, the failure of optical cables to meet the application occasions, and the inability to guarantee the operation of optical cables. It achieves fast curing speed and light weight. , the effect of light weight

Active Publication Date: 2020-04-28
SHANDONG PACIF OPTICS FIBER & CABLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the operating temperature is higher than 70°C or lower than -40°C, the performance of the optical fiber and the outer sheath material in the optical cable will drop sharply, the optical fiber will be easily broken, and the outer sheath will be seriously aged, which cannot guarantee the normal operation of the optical cable, so conventional optical cables cannot meet the requirements. Applications in harsh environments such as aerospace

Method used

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  • A kind of aerospace optical cable and preparation method thereof

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Embodiment 1

[0040] An aerospace optical cable, the structure of which is as follows figure 1 As mentioned above, it includes optical fiber, acrylate coating, thermoplastic polyurethane elastomer (TPU) layer 2, aramid fiber braiding layer 3 from the inside to the outside, the thickness of the acrylate coating is 50 μm, and the thickness of the thermoplastic polyurethane elastomer (TPU) layer The thickness is 0.15mm, and the thickness of the aramid fiber braided layer is 0.2mm. The acrylate coating includes an inner coating layer and an outer coating layer, the inner coating layer is a low modulus resin material, the outer coating is a high modulus resin material, the thickness of the inner coating layer is 20 μm, and the outer coating layer is 30 μm . The low modulus resin has a modulus of 80MPa, and the high modulus resin has a modulus of 150MPa. The low modulus resin and the high modulus resin are acrylates.

[0041] The raw material of the polyethersulfone tight sleeve layer is polye...

Embodiment 2

[0049] An aerospace optical cable, the structure of which is as follows figure 1 As mentioned above, it includes optical fiber, acrylate coating, polyethersulfone tight sleeve layer 2, and aramid fiber braiding layer 3 from inside to outside. The thickness of the acrylate coating is 60 μm, and the thickness of the polyethersulfone tight sleeve layer is 0.10 mm. , The thickness of the aramid fiber braided layer is 0.4mm. The acrylate coating includes an inner coating layer and an outer coating layer, the inner coating layer is a low modulus resin material, the outer coating layer is a high modulus resin material, the thickness of the inner coating layer is 30 μm, and the outer coating layer is 30 μm . The low modulus resin has a modulus of 80MPa, and the high modulus resin has a modulus of 150MPa. The low modulus resin and the high modulus resin are acrylates.

[0050] The raw material of the polyethersulfone tight sleeve layer is polyethersulfone, which is prepared by conde...

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Abstract

The invention relates to an optical cable for aeronautics and astronautics. The optical cable sequentially comprises an optical fiber, an acrylate coating layer, a TPU (thermoplastic polyurethane) layer or a polyether sulfone clamping layer, and an aramid fiber weaving layer from interior to exterior, wherein the acrylate coating layer is formed by coating the outer surface of the optical fiber with acrylate, and then curing by ultraviolet rays; the coating speed is 2100 to 2200m / min, and the length of the ultraviolet ray is 365 to 395nm. The optical cable has the advantages that the abrasion-resistant, puncturing-resistant and low temperature-resistant properties are excellent, and the flame-retardant property, low smoke and low toxicity, chemical corrosion-resistant property, UV (ultraviolet)-resistant property, weather-resistant property and microorganism-resistant property are realized; the optical fiber can be used for a long time at the temperature of 180 to 200 DEG C, and the anti-creepage property is good; the roundness is good, the weight is light and is smaller than or equal to 4Kg / km, the high temperature-resistant property, aging-resistant property and low shrinkage property are realized, and the certain radiation-resistant property is realized.

Description

technical field [0001] The invention relates to an ultra-light communication optical cable, in particular to an aerospace optical cable and a preparation method thereof. Background technique [0002] As a transmission medium, optical fiber has the advantages of ultra-lightweight, wide bandwidth, anti-electromagnetic interference, and good confidentiality compared with traditional copper cables; with the development of the aviation industry, in recent years, the application research of optical fiber cables in the field of aerospace widely. Aerospace optical cables are different from ordinary optical fiber cables, fully considering their applicability and safety, requiring light weight, thin wire diameter, high temperature resistance, and mechanical and optical stability in the long-term high temperature range, high strength, and bending resistance , impact resistance, aging resistance, acid and alkali resistance, resistance to various fuels and oils, flame retardant, low smo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/44
CPCG02B6/4415G02B6/443G02B6/4432G02B6/4486
Inventor 艾兴余李广省李冠魁郭亚亭周文高宪武
Owner SHANDONG PACIF OPTICS FIBER & CABLE CO LTD
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