Aerial high-temperature-resistant loose optical cable and preparation method thereof

Abstract

The invention discloses an aerial high-temperature-resistant loose optical cable and a preparation method thereof. A coating layer 2 is arranged outside an optical fiber core 1; a polytetrafluoroethylene PTFE lapping buffer layer 3 is arranged outside the coating layer 2; a polyether ether ketone PEEK loose layer 4 is arranged outside the polytetrafluoroethylene PTFE lapping buffer layer 3; an aromatic polyamide fiber reinforcing layer 5 is arranged outside the polyether ether ketone PEEK loose layer 4; an ethylene tetrafluoroethylene copolymer ETFE jacket layer 6 is arranged outside the aromatic polyamide fiber reinforcing layer 5. The aerial high temperature-resistant loose optical cable has the characteristics of resisting high / low temperature of -55-125 DEG C for a long time, resisting bending, compression, ageing, corrosion, salt mist, mould and damp heat and being long in service life and high in flame resistance, can be used for providing reliable service under severe environment and is suitable for the high-speed signal transmission under aerospace, electronics and onboard special environment conditions.

Description

technical field

[0001] The invention is a high-temperature-resistant loose-tube optical cable for aviation and a preparation method thereof. The optical cable has long-term high and low temperature resistance -55°C to +125°C, bending resistance, compression resistance, aging resistance, long life, corrosion resistance, salt spray resistance, and mold resistance. , heat and humidity resistance, high flame retardancy and other characteristics, can provide high reliability services in harsh environments, suitable for high-speed signal transmission in aerospace, electronics, and airborne special environmental conditions. Background technique

[0002] At present, in the field of common civilian optical cables, there are already many domestic manufacturers, and the technical level is also very mature. However, the application of optical cables in the military field is still in the initial stage of development. The main reason is that military optical cables have high requirements...

Examples

preparation example Construction

[0037] Its preparation method includes the following processes:

[0038] 1) Fiber core types are divided into multi-mode and single-mode, and the structure is divided into multi-mode 50 / 125μm, multi-mode 62.5 / 125μm, single-mode 9 / 125μm;

[0039] 2) Use coating equipment to coat special UV-curable acrylate, on the periphery of the optical fiber core, as coating layer 2, with a temperature resistance range of -65°C to +135°C, and an outer diameter of the coating layer of 245 μm;

[0040] 3) Use a wrapping machine to wrap a layer of polytetrafluoroethylene (PTFE) tape, and wrap it around the coating layer as a buffer layer 3. The temperature resistance range is -65℃~+250℃, and the outer diameter of the buffer layer is 400μm;

[0041]4) Polyetheretherketone (PEEK) is extruded by a high-temperature extruder and wrapped around the buffer layer 3 as the loose sleeve layer 4. The temperature resistance range is -65°C to +200°C, and the outer diameter of the loose sleeve layer is 900 μ...

example

[0044] Typical example: the outer diameter of the optical cable is 1.8mm, the outer diameter of the loose tube layer is 0.9mm, the core structure is 62.5μm / 125μm, and the high temperature resistant loose tube optical cable for aviation is 125°C, expressed as GLAE125-62.5 / 125-0.9-1.8.

technical field

[0001] The invention is a high-temperature-resistant loose-tube optical cable for aviation and a preparation method thereof. The optical cable has long-term high and low temperature resistance -55°C to +125°C, bending resistance, compression resistance, aging resistance, long life, corrosion resistance, salt spray resistance, and mold resistance. , heat and humidity resistance, high flame retardancy and other characteristics, can provide high reliability services in harsh environments, suitable for high-speed signal transmission in aerospace, electronics, and airborne special environmental conditions. Background technique

[0002] At present, in the field of common civilian optical cables, there are already many domestic manufacturers, and the technical level is also very mature. However, the application of optical cables in the military field is still in the initial stage of development. The main reason is that military optical cables have high requirements...

Examples

preparation example Construction

[0037] Its preparation method includes the following processes:

[0038] 1) Fiber core types are divided into multi-mode and single-mode, and the structure is divided into multi-mode 50 / 125μm, multi-mode 62.5 / 125μm, single-mode 9 / 125μm;

[0039] 2) Use coating equipment to coat special UV-curable acrylate, on the periphery of the optical fiber core, as coating layer 2, with a temperature resistance range of -65°C to +135°C, and an outer diameter of the coating layer of 245 μm;

[0040] 3) Use a wrapping machine to wrap a layer of polytetrafluoroethylene (PTFE) tape, and wrap it around the coating layer as a buffer layer 3. The temperature resistance range is -65℃~+250℃, and the outer diameter of the buffer layer is 400μm;

[0041]4) Polyetheretherketone (PEEK) is extruded by a high-temperature extruder and wrapped around the buffer layer 3 as the loose sleeve layer 4. The temperature resistance range is -65°C to +200°C, and the outer diameter of the loose sleeve layer is 900 μ...

example

[0044] Typical example: the outer diameter of the optical cable is 1.8mm, the outer diameter of the loose tube layer is 0.9mm, the core structure is 62.5μm / 125μm, and the high temperature resistant loose tube optical cable for aviation is 125°C, expressed as GLAE125-62.5 / 125-0.9-1.8.

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