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A device, process and application of spin-coating polymer film on the surface of optical fiber grating region

A technology of spin coating and polymer film, which is applied in the direction of cladding optical fiber, grating fiber, measuring device, etc., can solve the problems of difficulty in obtaining performance sensors, difficulty in controlling the thickness of polymer film, harsh polymerization conditions and equipment requirements, etc., to achieve Good mechanical properties, excellent gas selectivity, and high coating process efficiency

Active Publication Date: 2021-04-06
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the inventors found that it is difficult to control the thickness of the polymer film formed by in-situ polymerization, and the polymerization conditions and equipment requirements are harsh, and it is difficult to obtain a sensor with excellent performance.

Method used

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  • A device, process and application of spin-coating polymer film on the surface of optical fiber grating region
  • A device, process and application of spin-coating polymer film on the surface of optical fiber grating region
  • A device, process and application of spin-coating polymer film on the surface of optical fiber grating region

Examples

Experimental program
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Effect test

Embodiment 1

[0058] In this embodiment, taking the coating of polyimide film on the surface of the optical fiber grating region as an example, the spin coating process is described.

[0059] In this embodiment, the model of the low-speed motor (201) is 220V / 60KTYZ, the rotation speed is 5r / min, and the diameter of the rotating shaft is 7mm. First, the optical fiber (206) is fixed on the mold and connected with the low-speed motor (201) in a logical order on the platform support, wherein the selected optical fiber (206) is an optical fiber with four gate areas, so the selected mold is also Four grid area mould, mold length and solution tank (303) pitch are determined by fiber grating, and mold three-dimensional dimension is selected as 525mm * 25mm * 15mm, and the diameter of the optical fiber limiting groove (302) on the central axis of mold upper surface is 0.5mm, The solution tank (303) specification is 20mm * 5mm * 2.5mm, the size of the longitudinal anti-overflow tank (304) positioned ...

Embodiment 2

[0061] In this embodiment, taking the coating of polyethersulfone film on the surface of the optical fiber grating region as an example, the process of its spin coating is described.

[0062] In this embodiment, the model of the low-speed motor (201) is 220V / 60KTYZ, the rotation speed is 10r / min, and the diameter of the rotating shaft is 7mm. First, on the platform support, the optical fiber (206) is fixed on the mold and connected with the low-speed motor (201) in a logical order, wherein the selected optical fiber (206) is an optical fiber with six gate areas, so the selected mold is also The mold with six grid areas, the length of the mold and the distance between the solution grooves (303) are determined by the fiber grating, the three-dimensional size of the mold is selected as 540mm × 25mm × 15mm, and the diameter of the optical fiber limiting groove (302) on the central axis of the upper surface of the mold is 0.5mm. The solution tank (303) specification is 20mm * 5mm *...

Embodiment 3

[0064] In this embodiment, the coating of polyimide films with different thicknesses on the multi-gate optical fiber is taken as an example, and the spin coating process thereof is described.

[0065] In this embodiment, the model of the low-speed motor (201) is 220V / 60KTYZ, the rotation speed is 5r / min, and the diameter of the rotating shaft is 7mm. First, the optical fiber (206) is fixed on the mold and connected with the low-speed motor (201) in a logical order on the platform support, wherein the selected optical fiber (206) is an optical fiber with four gate areas, so the selected mold is also The four-gate area mold, the length of the mold and the distance between the solution tanks (303) are determined by the fiber grating, the three-dimensional size of the mold is selected as 525mm × 25mm × 15mm, and the diameter of the optical fiber limiting groove (302) on the central axis of the upper surface of the mold is 0.5mm , the solution tank (303) specification is 20mm * 5mm...

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Abstract

The invention relates to a device, process and application for rotating coating of a polymer film on the surface of an optical fiber grating area, and belongs to the technical fields of optical fiber grating surface treatment, micro-nano processing and molding, and optical fiber sensing element preparation. It includes: a driving device, a connecting device, a mold, a drying device, and a platform support; the driving device, the connecting device, and the mold are arranged in sequence on the platform support, and a part of the fixed mold on the platform support extends into the drying device. The driving device is connected with the optical fiber through the connecting device, the optical fiber is placed on the mold, and the driving device drives the optical fiber to rotate. Coating on the surface of the optical fiber grating region produces a gas-sensitive polymer film with uniform thickness distribution, good mechanical properties, and thickness controllable according to coating conditions, so as to obtain a fiber grating gas with excellent gas selectivity, high detection accuracy and sensitivity sensor.

Description

technical field [0001] The invention relates to a device, process and application for rotating coating of a polymer film on the surface of an optical fiber grating area, and belongs to the technical fields of optical fiber grating surface treatment, micro-nano processing and molding, and optical fiber sensing element preparation. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Fiber Bragg Grating is one of the most rapidly developed and widely used fiber passive devices in recent years. Due to many unique advantages, such as excellent anti-electromagnetic interference ability, high sensitivity, and strong corrosion resistance, fiber gratings have been maturely applied in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/02G01N21/77
CPCG01N21/7703G01N2021/775G02B6/02057
Inventor 徐永正石静玉贾玉玺周振泽高玉山王海庆刘利彬乔从德
Owner SHANDONG UNIV
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