CN112920632B - Heat-resistant photocuring optical fiber coating and preparation method thereof - Google Patents

Heat-resistant photocuring optical fiber coating and preparation method thereof Download PDF

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CN112920632B
CN112920632B CN202110299848.9A CN202110299848A CN112920632B CN 112920632 B CN112920632 B CN 112920632B CN 202110299848 A CN202110299848 A CN 202110299848A CN 112920632 B CN112920632 B CN 112920632B
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CN112920632A (en
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沈亚汝
郑超
王朝磊
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Shanghai Xianquan Optical Fiber Technology Co ltd
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    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract

The invention discloses a heat-resistant photocuring optical fiber coating and a preparation method thereof, wherein the optical fiber coating comprises the following raw materials, by weight, 2-4 parts of alkoxylated nonylphenol acrylate, 0.5-1.5 parts of 2-hydroxy-2-methyl-1-phenyl-1 acetone, 0.5-1.5 parts of benzoin ethyl ether, 0.5-1 part of 3-aminopropyl trimethoxy silane, 40-44 parts of polyether type acrylate, 50-60 parts of modified polyurethane and 10-12 parts of organic silica slurry, organic silica particles are prepared from organic siloxane, trimethoxy silane, pentaerythritol tetra-3-mercaptopropionate and diacrylamide-2-methylpropanesulfonic acid, and the organic siloxane is one of methyltrimethoxy silane and hexadecyl trimethoxy silane. The main user of the product prepared by the method is the optical fiber material, the optical fiber material is mainly prepared from glass or plastic, and the optical fiber coating mainly plays a role in protecting the optical fiber from the influence of the external environment and providing certain effects of mechanical strength and optical performance.

Description

Heat-resistant photocuring optical fiber coating and preparation method thereof
Technical Field
The invention relates to the technical field of optical fiber coatings, in particular to a heat-resistant photocuring optical fiber coating and a preparation method thereof.
Background
The optical fiber is mainly prepared from glass or plastics, and is mainly divided into quartz optical fiber, fluorine-doped optical fiber, infrared optical fiber, composite optical fiber and the like, and has wide application because of small loss, easy wiring, high reliability, simple preparation process, low price and the like.
The optical fiber coating used for the optical fiber material has the main functions of protecting the optical fiber from the influence of the external environment and providing the coating with certain mechanical strength and optical performance, and the environment for using the optical fiber is complex, so the requirements on the heat resistance, the mechanical strength and the hydrophobic performance of the optical fiber coating are met, the optical fiber coating cannot be damaged in the daily use process, and the economic loss is reduced, so the heat-resistant photocuring optical fiber coating and the preparation method thereof are particularly important.
Disclosure of Invention
The invention aims to provide a heat-resistant photocuring optical fiber coating and a preparation method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the components of the optical fiber coating comprise, by weight, 2-4 parts of alkoxy nonylphenol acrylate, 0.5-1.5 parts of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 0.5-1.5 parts of benzoin ethyl ether, 0.5-1 part of 3-aminopropyl trimethoxysilane, 40-44 parts of polyether acrylate, 50-60 parts of modified polyurethane and 10-12 parts of organic silica slurry.
Furthermore, the organic silicon dioxide particles are prepared from organic siloxane, trimethoxy silane, pentaerythritol tetra-3-mercaptopropionate and diacrylamide-2-methylpropanesulfonic acid.
Further, the organic siloxane is one of methyltrimethoxysilane and hexadecyltrimethoxysilane.
Further, the modified polyurethane is prepared from isophorone diisocyanate, 2-dimethylolpropionic acid, polyether glycol, dibutyltin dilaurate, trimethylolpropane tri (2-mercaptoacetate) and tetrahydrofuran.
A preparation method of a heat-resistant photocuring optical fiber coating comprises the following steps,
(1) Preparation of organic silica slurry: adding a solvent, deionized water and hydrogen chloride into organic siloxane, adjusting the pH, adding trimethoxy silane, stirring, adding pentaerythritol tetra-3-mercaptopropionate, introducing nitrogen, stirring, adding diacrylamide-2-methylpropanesulfonic acid, and stirring to obtain organic silica slurry;
(2) Preparing modified polyurethane: mixing isophorone diisocyanate and 2, 2-dimethylolpropionic acid, adding polyether glycol, stirring, adding dibutyltin dilaurate, stirring and heating, adding tetrahydrofuran, stirring, cooling, adding trimethylolpropane tri (2-mercaptoacetate) and tetrahydrofuran, stirring to obtain modified polyurethane, heating, and recovering tetrahydrofuran;
(3) And (3) treatment of tetrahydrofuran: condensing and recovering tetrahydrofuran volatilized in the step (2) by using a condensing device, adding acetone, diethyl ether and 2-methylquinoline, and stirring to obtain a mixture A;
(4) Preparing an optical fiber coating: stirring and mixing polyether type acrylate, modified polyurethane, organic silicon dioxide slurry and 3-aminopropyltrimethoxysilane, adding alkoxylated nonylphenol acrylate, 2-hydroxy-2-methyl-1-phenyl-1 acetone, the mixture A and benzoin ethyl ether, and stirring to obtain the photocuring optical fiber coating.
Further, the concrete steps are as follows,
(1) Preparation of organic silica slurry: adding a solvent, deionized water and hydrogen chloride into organic siloxane, adjusting the pH, adding trimethoxy silane, stirring for 40-50h, adding pentaerythritol tetra-3-mercaptopropionate, introducing nitrogen, stirring, adding diacrylamide-2-methylpropanesulfonic acid, and stirring to obtain an organic silicon dioxide slurry;
according to the application, the organic silicon dioxide particles are used for preparing the layer silicon dioxide coating from organic siloxane, trimethoxy silane, pentaerythritol tetra-3-mercaptopropionate and diacrylamide-2-methylpropanesulfonic acid, the surface of the coating is smooth after the coating is formed through adding a functional group to endow certain functionalization, the contact angle of the coating with water is changed, and good hydrophobicity is further shown, and due to the self characteristics of silicon, the coating has good thermal stability and high mechanical strength. The obtained silica coating has excellent thermal stability and hydrophobic property, and the mechanical strength of the coating can be improved due to the self-characteristics of the silica.
The organosiloxane used in the preparation of the silica coating can be selected from methyltrimethoxysilane or hexadecyltrimethoxysilane, where methyltrimethoxysilane is selected to give a better thermal stability effect than hexadecyltrimethoxysilane, since the long chains have an inhibiting effect on the formation of aggregates on the silica, but the hydrophobic properties are better than methyltrimethoxysilane due to the longer carbon chains.
Since the silica coating prepared in the present application is cured by ultraviolet rays, it is required to be performed in a dark environment in order to ensure the quality of the product during the preparation process.
(2) Preparing modified polyurethane: mixing isophorone diisocyanate and 2, 2-dimethylolpropionic acid, adding polyether glycol, stirring for 20-30min, adding dibutyltin dilaurate, stirring and heating at 50-60 ℃, reacting for 2.5-3.5h, adding tetrahydrofuran, stirring, cooling to 40-45 ℃, adding trimethylolpropane tris (2-mercaptoacetate) and tetrahydrofuran, stirring for 2-2.5h to obtain modified polyurethane, heating at 60-65 ℃, and recovering tetrahydrofuran;
according to the preparation method, isophorone diisocyanate, 2-dimethylolpropionic acid, polyether glycol, dibutyltin dilaurate, trimethylolpropane tris (2-mercaptoacetate) and tetrahydrofuran are used for preparing modified polyurethane, the obtained modified polyurethane has a mercapto end and can show lower water absorption performance, polyether type acrylate is added for synergistic action, the modified polyurethane and the polyether type acrylate are mixed according to the mass ratio of 50-60.
(3) And (3) treating tetrahydrofuran: condensing and recovering tetrahydrofuran volatilized in the step (2) by using a condensing device, adding acetone, diethyl ether and 2-methylquinoline, and stirring to obtain a mixture A;
this application can add a large amount of tetrahydrofuran when preparing modified polyurethane to get rid of to 65 ℃ through heating after the preparation, the tetrahydrofuran who volatilizes discharges and can cause pollution and waste to the atmosphere, consequently acetone, ether and 2-methylquinoline have been added to this application through retrieving the condensation under acetone as the ring of solvent goes on, handles tetrahydrofuran, can obtain quinoline class coloring agent, and is more pleasing to the eye.
(4) Preparing an optical fiber coating: and (2) stirring and mixing polyether type acrylate, modified polyurethane, organic silicon dioxide slurry and 3-aminopropyltrimethoxysilane, adding alkoxylated nonylphenol acrylate, 2-hydroxy-2-methyl-1-phenyl-1 acetone, the mixture A and benzoin ethyl ether, and stirring to obtain the photocuring optical fiber coating.
Further, it is necessary to ensure that the preparation of the organic silica particles and the preparation of the optical fiber coating are performed in a dark environment.
Compared with the prior art, the invention has the following beneficial effects: the main user of the product prepared by the method is the optical fiber material, the optical fiber material is mainly prepared from glass or plastic, and the optical fiber coating mainly plays a role in protecting the optical fiber from the influence of the external environment and providing the coating with certain mechanical strength and optical performance.
The ultraviolet-cured optical fiber coating prepared by the method has good mechanical strength, thermal stability and hydrophobicity, and can play a role in protecting optical fibers after being coated on the surface of the optical fibers.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The heat-resistant photocuring optical fiber coating comprises the following raw materials, by weight, 2 parts of alkoxylated nonylphenol acrylate, 0.5 part of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 0.5 part of benzoin ethyl ether, 0.5 part of 3-aminopropyl trimethoxy silane, 40 parts of polyether acrylate, 50 parts of modified polyurethane and 10 parts of organic silica slurry.
The organic silicon dioxide particles are prepared from organic siloxane, trimethoxy silane, pentaerythritol tetra-3-mercaptopropionate and diacrylamide-2-methylpropanesulfonic acid.
The organic siloxane is methyl trimethoxy silane.
The modified polyurethane is prepared from isophorone diisocyanate, 2-dimethylolpropionic acid, polyether glycol, dibutyltin dilaurate, trimethylolpropane tri (2-mercaptoacetate) and tetrahydrofuran.
A preparation method of a heat-resistant photocuring optical fiber coating comprises the following steps,
(1) Preparation of organic silica slurry:
adding a solvent, deionized water and hydrogen chloride into organic siloxane in a dark environment, adjusting pH, adding trimethoxy silane, stirring for 40 hours, adding pentaerythritol tetra-3-mercaptopropionate, introducing nitrogen, stirring, adding diacrylamide-2-methylpropanesulfonic acid, and stirring to obtain organic silica slurry;
(2) Preparing modified polyurethane:
mixing isophorone diisocyanate and 2, 2-dimethylolpropionic acid, adding polyether glycol, stirring for 20min, adding dibutyltin dilaurate, stirring and heating at 50 ℃ for 2.5h, adding tetrahydrofuran, stirring, cooling to 40 ℃, adding trimethylolpropane tris (2-mercaptoacetate) and tetrahydrofuran, stirring for 2-2.5h to obtain modified polyurethane, heating at 60 ℃, and recovering tetrahydrofuran;
(3) And (3) treating tetrahydrofuran:
condensing and recovering tetrahydrofuran volatilized in the step (2) by using a condensing device, adding acetone, diethyl ether and 2-methylquinoline, and stirring to obtain a mixture A;
(4) Preparing an optical fiber coating:
and stirring and mixing polyether type acrylate, modified polyurethane, organic silicon dioxide slurry and 3-aminopropyltrimethoxysilane in a dark environment, adding alkoxylated nonylphenol acrylate, 2-hydroxy-2-methyl-1-phenyl-1 acetone, the mixture A and benzoin ethyl ether, and stirring to obtain the photocuring optical fiber coating.
Example 2
The components of the optical fiber coating comprise, by weight, 3 parts of alkoxylated nonylphenol acrylate, 1 part of 2-hydroxy-2-methyl-1-phenyl-1 acetone, 1 part of benzoin ethyl ether, 0.7 part of 3-aminopropyltrimethoxysilane, 43 parts of polyether acrylate, 55 parts of modified polyurethane and 11 parts of organic silica slurry.
The organic silicon dioxide particles are prepared from organic siloxane, trimethoxy silane, pentaerythritol tetra-3-mercaptopropionate and diacrylamide-2-methylpropanesulfonic acid.
The organic siloxane is one of hexadecyl trimethoxy silane.
The modified polyurethane is prepared from isophorone diisocyanate, 2-dimethylolpropionic acid, polyether glycol, dibutyltin dilaurate, trimethylolpropane tri (2-mercaptoacetate) and tetrahydrofuran.
A preparation method of a heat-resistant photocuring optical fiber coating comprises the following steps,
(1) Preparation of organic silica slurry:
adding a solvent, deionized water and hydrogen chloride into organic siloxane in a dark environment, adjusting the pH value, adding trimethoxy silane, stirring for 45 hours, adding pentaerythritol tetra-3-mercaptopropionate, introducing nitrogen, stirring, adding diacrylamide-2-methylpropanesulfonic acid, and stirring to obtain organic silicon dioxide slurry;
(2) Preparing modified polyurethane:
mixing isophorone diisocyanate and 2, 2-dimethylolpropionic acid, adding polyether glycol, stirring for 25min, adding dibutyltin dilaurate, stirring and heating at 55 ℃ for 3h, adding tetrahydrofuran, stirring, cooling to 43 ℃, adding trimethylolpropane tris (2-mercaptoacetate) and tetrahydrofuran, stirring for 2.3h to obtain modified polyurethane, heating to 63 ℃, and recovering tetrahydrofuran;
(3) And (3) treatment of tetrahydrofuran:
condensing and recovering tetrahydrofuran volatilized in the step (2) by using a condensing device, adding acetone, diethyl ether and 2-methylquinoline, and stirring to obtain a mixture A;
(4) Preparing an optical fiber coating:
and stirring and mixing polyether type acrylate, modified polyurethane, organic silicon dioxide slurry and 3-aminopropyltrimethoxysilane in a dark environment, adding alkoxylated nonylphenol acrylate, 2-hydroxy-2-methyl-1-phenyl-1 acetone, the mixture A and benzoin ethyl ether, and stirring to obtain the photocuring optical fiber coating.
Example 3
The components of the optical fiber coating comprise, by weight, 4 parts of alkoxylated nonylphenol acrylate, 1.5 parts of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1.5 parts of benzoin ethyl ether, 1 part of 3-aminopropyl trimethoxysilane, 44 parts of polyether acrylate, 60 parts of modified polyurethane and 12 parts of organic silica slurry.
The organic silicon dioxide particles are prepared from organic siloxane, trimethoxy silane, pentaerythritol tetra-3-mercaptopropionate and diacrylamide-2-methylpropanesulfonic acid.
The organic siloxane is methyl trimethoxy silane.
The modified polyurethane is prepared from isophorone diisocyanate, 2-dimethylolpropionic acid, polyether glycol, dibutyltin dilaurate, trimethylolpropane tri (2-mercaptoacetate) and tetrahydrofuran.
A preparation method of a heat-resistant photocuring optical fiber coating comprises the following steps,
(1) Preparation of organic silica slurry:
adding a solvent, deionized water and hydrogen chloride into organic siloxane in a dark environment, adjusting the pH value, adding trimethoxy silane, stirring for 50h, adding pentaerythritol tetra-3-mercaptopropionate, introducing nitrogen, stirring, adding diacrylamide-2-methylpropanesulfonic acid, and stirring to obtain organic silica slurry;
(2) Preparing modified polyurethane:
mixing isophorone diisocyanate and 2, 2-dimethylolpropionic acid, adding polyether glycol, stirring for 30min, adding dibutyltin dilaurate, stirring and heating at the temperature of 60 ℃, reacting for 3.5h, adding tetrahydrofuran, stirring, cooling to 45 ℃, adding trimethylolpropane tris (2-mercaptoacetate) and tetrahydrofuran, stirring for 2.5h to obtain modified polyurethane, heating at the temperature of 65 ℃, and recovering tetrahydrofuran;
(3) And (3) treating tetrahydrofuran:
condensing and recovering tetrahydrofuran volatilized in the step (2) by using a condensing device, adding acetone, diethyl ether and 2-methylquinoline, and stirring to obtain a mixture A;
(4) Preparing an optical fiber coating:
and stirring and mixing polyether type acrylate, modified polyurethane, organic silicon dioxide slurry and 3-aminopropyltrimethoxysilane in a dark environment, adding alkoxylated nonylphenol acrylate, 2-hydroxy-2-methyl-1-phenyl-1 acetone, the mixture A and benzoin ethyl ether, and stirring to obtain the photocuring optical fiber coating.
Comparative example 1
The heat-resistant photocuring optical fiber coating comprises the following raw materials, by weight, 4 parts of alkoxylated nonylphenol acrylate, 1.5 parts of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1.5 parts of benzoin ethyl ether, 1 part of 3-aminopropyltrimethoxysilane, 44 parts of polyether acrylate and 60 parts of modified polyurethane.
The modified polyurethane is prepared from isophorone diisocyanate, 2-dimethylolpropionic acid, polyether glycol, dibutyltin dilaurate, trimethylolpropane tri (2-mercaptoacetate) and tetrahydrofuran.
A preparation method of a heat-resistant photocuring optical fiber coating comprises the following steps,
(1) Preparing modified polyurethane:
mixing isophorone diisocyanate and 2, 2-dimethylolpropionic acid, adding polyether glycol, stirring for 30min, adding dibutyltin dilaurate, stirring and heating at the temperature of 60 ℃, reacting for 3.5h, adding tetrahydrofuran, stirring, cooling to 45 ℃, adding trimethylolpropane tris (2-mercaptoacetate) and tetrahydrofuran, stirring for 2.5h to obtain modified polyurethane, heating to the temperature of 65 ℃, and recovering tetrahydrofuran;
(2) And (3) treating tetrahydrofuran:
condensing and recovering tetrahydrofuran volatilized in the step (2) by using a condensing device, adding acetone, diethyl ether and 2-methylquinoline, and stirring to obtain a mixture A;
(3) Preparing an optical fiber coating:
and stirring and mixing the polyether type acrylate, the modified polyurethane and the 3-aminopropyltrimethoxysilane in a dark environment, adding alkoxylated nonylphenol acrylate, 2-hydroxy-2-methyl-1-phenyl-1 acetone, the mixture A and benzoin ethyl ether, and stirring to obtain the photocuring optical fiber coating.
Comparative example 2
The components of the optical fiber coating comprise, by weight, 4 parts of alkoxylated nonylphenol acrylate, 1.5 parts of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1.5 parts of benzoin ethyl ether, 1 part of 3-aminopropyl trimethoxy silane, 44 parts of polyether acrylate, 60 parts of polyurethane and 12 parts of organic silica slurry.
The organic silicon dioxide particles are prepared from organic siloxane, trimethoxy silane, pentaerythritol tetra-3-mercaptopropionate and diacrylamide-2-methylpropanesulfonic acid.
The organic siloxane is methyl trimethoxy silane.
A preparation method of a heat-resistant photocuring optical fiber coating comprises the following steps,
(1) Preparation of organic silica slurry:
adding a solvent, deionized water and hydrogen chloride into organic siloxane in a dark environment, adjusting the pH value, adding trimethoxy silane, stirring for 50h, adding pentaerythritol tetra-3-mercaptopropionate, introducing nitrogen, stirring, adding diacrylamide-2-methylpropanesulfonic acid, and stirring to obtain organic silica slurry;
(2) Preparing an optical fiber coating:
and (2) stirring and mixing polyether acrylate, polyurethane, organic silicon dioxide slurry and 3-aminopropyltrimethoxysilane in a dark environment, adding alkoxylated nonylphenol acrylate, 2-hydroxy-2-methyl-1-phenyl-1 acetone, the mixture A and benzoin ethyl ether, and stirring to obtain the photocuring optical fiber coating.
Experiment of
Comparative examples 1 and 2 were set up by taking example 3 as a control, wherein no silica coating was added in comparative example 1 and no modification of polyurethane was performed in comparative example 2, and a control experiment was performed.
Taking an optical fiber material as a substrate, respectively coating examples 1, 2, 3, 1 and 2 on the optical fiber material, carrying out ultraviolet light curing, carrying out a thermal stability performance test according to SJ/T11475-2014, carrying out a water absorption performance test according to GB/T1034-2008, carrying out a tensile strength test according to T1731-93, and obtaining the following results,
Figure BDA0002985766980000081
watch 1
Data analysis
In comparative example 1, no silica coating is added, and in comparative example 2, no polyurethane is modified, so that the thermal stability, the water absorption performance and the tensile strength of the product are reduced relative to those of example 1, example 2 and example 3.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. A preparation method of a heat-resistant photocuring optical fiber coating is characterized by comprising the following steps: the steps are as follows,
(1) Preparation of organic silica slurry: adding a solvent, deionized water and hydrogen chloride into organic siloxane, adjusting the pH value, adding trimethoxy silane, stirring for 40-50h, adding pentaerythritol tetra-3-mercaptopropionate, introducing nitrogen, stirring, adding diacrylamide-2-methylpropanesulfonic acid, and stirring to obtain an organic silicon dioxide slurry;
(2) Preparing modified polyurethane: mixing isophorone diisocyanate and 2, 2-dimethylolpropionic acid, adding polyether glycol, stirring for 20-30min, adding dibutyltin dilaurate, stirring and heating at 50-60 ℃, reacting for 2.5-3.5h, adding tetrahydrofuran, stirring, cooling to 40-45 ℃, adding trimethylolpropane tris (2-mercaptoacetate) and tetrahydrofuran, stirring for 2-2.5h to obtain modified polyurethane, heating at 60-65 ℃, and recovering tetrahydrofuran;
(3) And (3) treating tetrahydrofuran: condensing and recovering tetrahydrofuran volatilized in the step (2) by using a condensing device, adding acetone, diethyl ether and 2-methylquinoline, and stirring to obtain a mixture A;
(4) Preparing an optical fiber coating: stirring and mixing polyether type acrylate, modified polyurethane, organic silicon dioxide slurry and 3-aminopropyltrimethoxysilane, adding alkoxylated nonylphenol acrylate, 2-hydroxy-2-methyl-1-phenyl-1 acetone, a mixture A and benzoin ethyl ether, and stirring to obtain the photocuring optical fiber coating;
the optical fiber coating comprises the following raw materials, by weight, 2-4 parts of alkoxylated nonylphenol acrylate, 0.5-1.5 parts of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 0.5-1.5 parts of benzoin ethyl ether, 0.5-1 part of 3-aminopropyl trimethoxysilane, 40-44 parts of polyether acrylate, 50-60 parts of modified polyurethane and 10-12 parts of organic silica slurry;
it is necessary to ensure that the preparation of the organic silica slurry and the preparation of the optical fiber coating are performed in a dark environment.
2. The method for preparing a heat-resistant photo-curable optical fiber coating according to claim 1, wherein: the organic siloxane is one of methyltrimethoxysilane and hexadecyltrimethoxysilane.
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