A kind of antistatic optical fiber and its preparation method

A technology of antistatic and antistatic agent, which is applied in the direction of cladding optical fiber, optical waveguide light guide, fiber mechanical structure, etc., can solve the problem that the static electricity of optical fiber cannot be fundamentally eliminated, and achieve the effect of reducing electrostatic effect and lowering resistivity

Active Publication Date: 2019-04-16
SHANGHAI PHICHEM MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The existing technology cannot fundamentally eliminate the static electricity on the optical fiber

Method used

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  • A kind of antistatic optical fiber and its preparation method
  • A kind of antistatic optical fiber and its preparation method
  • A kind of antistatic optical fiber and its preparation method

Examples

Experimental program
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preparation example Construction

[0043] On the other hand, the embodiment of the present invention provides a method for preparing the above-mentioned antistatic optical fiber, which includes: mixing the coating used to prepare the coating with the antistatic agent according to the mass ratio of the coating and the antistatic agent to obtain a mixed coating, and then The mixed paint is coated on the outer surface of the optical fiber, and after drawing and curing, an antistatic optical fiber is obtained.

[0044] Among them, in the above preparation process, the optical fiber in "coating the mixed coating on the outer surface of the optical fiber, after drawing and curing" refers to the optical fiber that has been coated with an inner layer or optional other coatings. For example, when the outermost layer is the outer layer of a resin coating, the optical fiber here refers to an optical fiber that has been coated with an inner layer. When the outermost layer is an ink layer, the optical fiber here refers to an o...

Embodiment 1

[0067] This embodiment provides an antistatic optical fiber with an antistatic agent in the outer coating, and the preparation method is as follows:

[0068] Add the antistatic agent: monododecyl phosphate to the coating used to prepare the outer coating, and stir it evenly to obtain the mixed coating. The mixed coating is passed through the fiber drawing tower with a certain diameter, speed and energy on the substrate Optical fiber: Coating and drawing and curing the A fiber to form an antistatic optical fiber with an antistatic agent in the outer coating. Wherein, the mass of monododecyl phosphate is 1.1% of the mass of the outer coating.

[0069] A digital insulation resistance tester was used to test the resistivity of the antistatic fiber and the base fiber, and the results are as follows: the resistivity of the antistatic fiber in this embodiment is 4.2×10 6 Ω·cm; the resistivity of the base fiber of this embodiment is 9.2×10 8 Ω·cm. It can be seen that, by adding an antista...

Embodiment 2— Embodiment 31

[0071] The methods adopted in the above embodiments are the same as those in the first embodiment. The difference lies in the coating where the antistatic agent is located, the coating used for the coating containing the antistatic agent, the antistatic agent used, the mass percentage of the antistatic agent in the coating, and the base fiber used. For the specific differences between Example 2 and Example 31, see Table 1. A digital insulation resistance tester was used to test the resistivity of the antistatic optical fiber and the base optical fiber prepared in Example 2 to Example 31, and the test results are shown in Table 2.

[0072] Table 1

[0073]

[0074]

[0075] Table 2

[0076]

[0077]

[0078] It can be seen from Table 2 that by adding an antistatic agent to the coating in the embodiment of the present invention, the resistivity of the optical fiber can be significantly reduced, and the antistatic performance of the optical fiber can be effectively improved.

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Abstract

The invention discloses an antistatic optical fiber and a manufacturing method thereof, which belong to the field of optical fibers. The optical fiber of the invention comprises a fiber core, a wrapping layer covering the outer surface of the fiber core and at least one coating layer covering the outer surface of the wrapping layer, wherein the coating layer contains an antistatic agent; and the mass of the antistatic agent is 1.1 to 10% of that of the coating layer. The optical fiber of the invention has the beneficial effects that the resistivity of the optical fiber coating layer can be reduced; the electrostatic effects on the surface of the optical fiber can be reduced fundamentally; and performance such as elasticity, strength and water absorption of the coating layer itself is not influenced at all.

Description

Technical field [0001] The invention relates to the field of optical fibers, in particular to an antistatic optical fiber and a preparation method thereof. Background technique [0002] Optical fiber, or optical fiber, is a light transmission tool that uses the principle of total reflection of light in glass, such as quartz glass or plastic fiber. It has reliable performance, high quality, high speed, low line loss, and transmission distance. It is widely used in a wide range of civil and military fields such as optical fiber communication, optical fiber sensing, optical fiber image transmission, light transmission lighting, energy transmission and signal control. [0003] An optical fiber generally includes a core, a cladding layer covering the outer surface of the core, and at least one coating layer covering the outer surface of the cladding layer. The coating can be a resin coating, an ink layer or a combined layer. For example, an optical fiber includes a core and a cladding...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/02G02B6/44
Inventor 吴严范春晓
Owner SHANGHAI PHICHEM MATERIAL CO LTD
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